feat: Implement basic localisation

Use PortalCreateEvent which allows better checking of nether portal creation.

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -0,0 +1,77 @@
+name: 🐛 Report a Bug
+description: Report a problem with Multiverse-Core.
+title: "[Bug]: "
+labels: ["Bug: Unconfirmed"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+
+        If you are having issues with other submodules of Multiverse, please go to their respective git repo:
+            Multiverse-Portals: https://github.com/Multiverse/Multiverse-Portals/issues/new/choose
+            Multiverse-NetherPortals: https://github.com/Multiverse/Multiverse-NetherPortals/issues/new/choose
+            Multiverse-Inventories: https://github.com/Multiverse/Multiverse-Inventories/issues/new/choose
+            Multiverse-SignPortals: https://github.com/Multiverse/Multiverse-SignPortals/issues/new/choose
+
+        Not sure if this is a bug with Multiverse-Core? Feel free to ask on our Discord server: https://discord.gg/NZtfKky
+
+        When completing the report, please ensure all fields are filled with the correct details requested. Failure to do so will result in your issue being closed.
+  - type: input
+    id: mutliverse-version-info
+    attributes:
+      label: '`/mv version -p` output'
+      description: Run `/mv version -p` in the console, then copy and paste the link from the output of the command into this box.
+    validations:
+      required: true
+  - type: input
+    id: server-logs
+    attributes:
+      label: Server logs
+      description: >
+        Include full startup log and console error (if any). upload all relevant logs to either https://paste.gg
+        or https://gist.github.com, save and the paste the link in this box.
+    validations:
+      required: true
+  - type: textarea
+    id: server-version
+    attributes:
+      label: Server Version
+      description: Output of `/version` command.
+      placeholder: server version info
+      render: shell
+    validations:
+      required: true
+  - type: textarea
+    id: bug-description
+    attributes:
+      label: Bug Description
+      description: Describe in detail what the bug is about. Include the expected behaviour and actual behaviour.
+      placeholder: "Example: When running `/mv` it cause the server to crash..."
+    validations:
+      required: true
+  - type: textarea
+    id: reproduce-steps
+    attributes:
+      label: Steps to reproduce
+      description: Provide detailed intructions to trigger the bug.
+      placeholder: |
+        Example:
+          1. Start a server with only multiverse installed.
+          2. Run `/mv` command.
+          3. Players all get kicked with a "server closed" message.
+          ...
+    validations:
+      required: true
+  - type: checkboxes
+    id: agreements
+    attributes:
+      label: Agreements
+      description: Ensure you have done the following being submitting this issue.
+      options:
+        - label: I have searched for and ensured there isn't already an open or resolved issue(s) regarding this.
+          required: true
+        - label: >
+            I was able to reproduce my issue on a freshly setup and up-to-date server with the latest
+            version of Multiverse plugins with no other plugins and with no kinds of other server or client mods.
+          required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: 💬 Multiverse Discord Server
+    url: https://discord.gg/NZtfKky
+    about: Need help with using Multiverse-Core or just want to chat with the devs? Join the Multiverse Discord Server for help!

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -0,0 +1,41 @@
+name: 💡 Request a Feature
+description: Suggest a feature you want to see in Multiverse-Core!
+title: "[Idea]: "
+labels: ["Type: Idea"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to share your ideas!
+
+        If you are look for other submodules of Multiverse, go to their respective git repo:
+            Multiverse-Portals: https://github.com/Multiverse/Multiverse-Portals/issues/new/choose
+            Multiverse-NetherPortals: https://github.com/Multiverse/Multiverse-NetherPortals/issues/new/choose
+            Multiverse-Inventories: https://github.com/Multiverse/Multiverse-Inventories/issues/new/choose
+            Multiverse-SignPortals: https://github.com/Multiverse/Multiverse-SignPortals/issues/new/choose
+
+        Not sure if your feature fits in Multiverse-Core? Feel free to ask on our Discord server: https://discord.gg/NZtfKky
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: Describe the feature
+      description: What feature are you suggesting?
+      placeholder: "Example: I hope multiverse can implement random teleport feature..."
+    validations:
+      required: true
+  - type: textarea
+    id: feature-reasoning
+    attributes:
+      label: How is the feature useful to all Multiverse users?
+      description: How is the feature useful to all players, server owners and/or developers?
+      placeholder: "Example: Random teleporting can be integrated into many multiverse modules such as mv-portals..."
+    validations:
+      required: true
+  - type: checkboxes
+    id: agreements
+    attributes:
+      label: Agreements
+      description: Ensure you have done the following being submitting this issue.
+      options:
+        - label: I have searched for and ensured there isn't already an open issue regarding this.
+          required: true

.github/workflows/build.yml

@@ -0,0 +1,22 @@
+name: Maven CI/CD
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build_and_test:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml

.gitignore

@@ -12,6 +12,7 @@
 
 # maven
 /target
+dependency-reduced-pom.xml
 
 # vim
 .*.sw[a-p]

.travis.yml

@@ -1,7 +0,0 @@
-language: java
-jdk:
-  - openjdk6
-notifications:
-  email: false
-before_install:
-  - sed -i.bak -e 's|https://nexus.codehaus.org/snapshots/|https://oss.sonatype.org/content/repositories/codehaus-snapshots/|g' ~/.m2/settings.xml

LICENSE.md

@@ -0,0 +1,6 @@
+Copyright (c) 2011, The Multiverse Team All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the The Multiverse Team nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+

README.md

@@ -1,15 +1,44 @@
+![Multiverse 2](config/multiverse2-long.png)
+
+[![Maven CI/CD](https://github.com/Multiverse/Multiverse-Core/actions/workflows/build.yml/badge.svg)](https://github.com/Multiverse/Multiverse-Core/actions/workflows/build.yml)
+[![Release](https://img.shields.io/nexus/r/com.onarandombox.multiversecore/Multiverse-Core?label=release&server=https%3A%2F%2Frepo.onarandombox.com%2F)](https://dev.bukkit.org/projects/multiverse-core)
+[![Dev builds](https://img.shields.io/nexus/s/com.onarandombox.multiversecore/Multiverse-Core?label=dev%20builds&server=http%3A%2F%2Frepo.onarandombox.com%2F)](https://ci.onarandombox.com/job/Multiverse-Core/)
+[![Discord](https://img.shields.io/discord/325459248047980545?label=discord&logo=discord)](https://discord.gg/NZtfKky)
+[![Support me on Patreon](https://img.shields.io/endpoint.svg?url=https%3A%2F%2Fshieldsio-patreon.vercel.app%2Fapi%3Fusername%3Ddumptruckman%26type%3Dpatrons&style=flat)](https://patreon.com/dumptruckman)
+[![License](https://img.shields.io/github/license/Multiverse/Multiverse-Core)](LICENSE.md)
+
+About
+========
+[Multiverse](https://dev.bukkit.org/projects/multiverse-core) was created at the dawn of Bukkit multiworld support. It has since then grown into a **complete world management solution!** Multiverse provides the easiest to use world management solution for your Minecraft server, big or small, and with great addons like [Portals](https://dev.bukkit.org/projects/multiverse-portals) and [NetherPortals](https://dev.bukkit.org/projects/multiverse-netherportals/), what's not to love!
+<br><br>
+Now it's time to create your very own Multiverse server, do check out our [Wiki](https://github.com/Multiverse/Multiverse-Core/wiki) and [Usage Guide](https://github.com/Multiverse/Multiverse-Core/wiki/Basics) to get started. Feel free to hop onto our [Discord](https://discord.gg/NZtfKky) if you have any question or just want to have a chat with us!
+
+### Amazing sub-modules available:
+* [Multiverse-NetherPortals](https://github.com/Multiverse/Multiverse-NetherPortals) -> Have separate nether and end worlds for each of your overworlds!
+* [Multiverse-Portals](https://github.com/Multiverse/Multiverse-Portals) -> Make custom portals to go to any destination!
+* [Multiverse-Inventories](https://github.com/Multiverse/Multiverse-Inventories) -> Have separated players stats and inventories per world or per group of worlds.
+* [Multiverse-SignPortals](https://github.com/Multiverse/Multiverse-SignPortals) -> Signs as teleprompters!
+
 Building
 ========
 Simply build the source with maven:
-
-    $ mvn install
-
+```
+$ mvn install
+```
 More details are available on the [build instructions wiki page](https://github.com/Multiverse/Multiverse-Core/wiki/Building).
 
+
+Contributing
+=======
+**Want to help improve Multiverse?** There are several ways you can support and contribute to the project.
+* Take a look at our "Bug: Unconfirmed" issues, where you can find issues that need extra testing and investigation.
+* Want others to love Multiverse too? You can join the [Multiverse Discord community](https://discord.gg/NZtfKky) and help others with issues and setup!
+* A Multiverse guru? You can update our [Wiki](https://github.com/Multiverse/Multiverse-Core/wiki) with your latest tip, tricks and guides! The wiki open for all to edit and improve.
+* Love coding? You could look at ["State: Open to PR"](https://github.com/Multiverse/Multiverse-Core/labels/State%3A%20Open%20to%20PR) and ["Resolution: Accepted"](https://github.com/Multiverse/Multiverse-Core/labels/Resolution%3A%20Accepted) issues. We're always happy to receive bug fixes and feature additions as [pull requests](https://www.freecodecamp.org/news/how-to-make-your-first-pull-request-on-github-3/).
+* If you'd like to make a financial contribution to the project, do consider joining our [patreon](https://www.patreon.com/dumptruckman) or make a one-time donation [here](https://paypal.me/dumptruckman)!
+
+Additionally, we would like to give a big thanks to everyone that has supported Multiverse over the years, as well as those in the years to come. Thank you!
+
 License
 =======
-Copyright (c) 2011, The Multiverse Team All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
-
-Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the The Multiverse Team nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+Multiverse-Core is licensed under BSD-3-Clause License. Please see [LICENSE.md](LICENSE.md) for more info.

config/mv_checks.xml

@@ -69,7 +69,7 @@
         <module name="TypeName"/>
         <module name="AvoidStarImport">
             <property name="severity" value="warning"/>
-            <property name="excludes" value="com.onarandombox.MultiverseCore.utils,com.onarandombox.MultiverseCore.configuration,com.onarandombox.MultiverseCore.commands,com.onarandombox.MultiverseCore.destination"/>
+            <property name="excludes" value="com.onarandombox.MultiverseCore.utils,com.onarandombox.MultiverseCore.configuration,com.onarandombox.MultiverseCore.commandsold,com.onarandombox.MultiverseCore.destination"/>
         </module>
         <module name="IllegalImport"/>
         <module name="RedundantImport"/>
@@ -115,7 +115,6 @@
             <property name="ignoreNumbers" value="-1, 0, 0.5, 1, 2, 3"/>
         </module>
         <module name="MissingSwitchDefault"/>
-        <module name="RedundantThrows"/>
         <module name="SimplifyBooleanExpression"/>
         <module name="SimplifyBooleanReturn"/>
         <!-- Don't like errors for `final` missing

pom.xml

@@ -3,31 +3,40 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.onarandombox.multiversecore</groupId>
     <artifactId>Multiverse-Core</artifactId>
-    <version>2.5</version>
+    <version>5.0.0-SNAPSHOT</version>
     <name>Multiverse-Core</name>
     <description>World Management Plugin</description>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.build.number>UNKNOWN</project.build.number>
+        <project.bitly-access-token>bitly-access-token</project.bitly-access-token>
     </properties>
 
     <repositories>
       <!-- Spigot -->
-    <repository>
-        <id>spigot-repo</id>
-        <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
-    </repository>
+        <repository>
+            <id>spigot-repo</id>
+            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
+        </repository>
         <repository>
             <id>onarandombox</id>
-            <url>http://repo.onarandombox.com/content/groups/public</url>
+            <url>https://repo.onarandombox.com/content/groups/public</url>
         </repository>
         <repository>
             <id>spigot</id>
             <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
         </repository>
         <repository>
-            <id>vault-repo</id>
-            <url>http://nexus.theyeticave.net/content/repositories/pub_releases</url>
+            <id>jitpack.io</id>
+            <url>https://jitpack.io</url>
+        </repository>
+        <repository>
+            <id>minebench-repo</id>
+            <url>https://repo.minebench.de/</url>
+        </repository>
+        <repository>
+            <id>aikar</id>
+            <url>https://repo.aikar.co/content/groups/aikar/</url>
         </repository>
     </repositories>
 
@@ -35,7 +44,7 @@
         <pluginRepository>
             <id>doodleproject-repo</id>
             <name>DoodleProject Maven 2 Repository</name>
-            <url>http://doodleproject.sourceforge.net/maven2/release</url>
+            <url>https://doodleproject.sourceforge.net/maven2/release</url>
             <releases>
                 <enabled>true</enabled>
             </releases>
@@ -44,7 +53,7 @@
 
     <ciManagement>
         <system>jenkins</system>
-        <url>http://ci.onarandombox.com</url>
+        <url>https://ci.onarandombox.com</url>
     </ciManagement>
 
     <!-- Profiles are used to detect whether this is a local or Jenkins build
@@ -61,6 +70,17 @@
                 <project.build.number>${env.BUILD_NUMBER}</project.build.number>
             </properties>
         </profile>
+        <profile>
+            <id>bitly</id>
+            <activation>
+                <property>
+                    <name>env.BITLY_ACCESS_TOKEN</name>
+                </property>
+            </activation>
+            <properties>
+                <project.bitly-access-token>${env.BITLY_ACCESS_TOKEN}</project.bitly-access-token>
+            </properties>
+        </profile>
     </profiles>
 
     <build>
@@ -70,39 +90,62 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>2.3.2</version>
+                <version>3.7.0</version>
                 <configuration>
-                    <source>1.6</source>
-                    <target>1.6</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                 </configuration>
             </plugin>
             <plugin>
                 <groupId>com.google.code.maven-replacer-plugin</groupId>
                 <artifactId>maven-replacer-plugin</artifactId>
-                <version>1.3.8</version>
+                <version>1.4.1</version>
                 <executions>
                     <execution>
+                        <id>replace-bitly-access-token</id>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>replace</goal>
+                        </goals>
+                        <configuration>
+                            <basedir>${project.build.sourceDirectory}</basedir>
+                            <includes>
+                                <include>com/onarandombox/MultiverseCore/utils/webpaste/BitlyURLShortener.java</include>
+                            </includes>
+                            <replacements>
+                                <replacement>
+                                    <token>bitly-access-token</token>
+                                    <value>${project.bitly-access-token}</value>
+                                </replacement>
+                            </replacements>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>replace-maven-version-number</id>
                         <phase>prepare-package</phase>
                         <goals>
                             <goal>replace</goal>
                         </goals>
+                        <configuration>
+                            <basedir>${project.build.directory}/classes</basedir>
+                            <includes>
+                                <include>plugin.yml</include>
+                            </includes>
+                            <replacements>
+                                <replacement>
+                                    <token>maven-version-number</token>
+                                    <value>${project.version}-b${project.build.number}</value>
+                                </replacement>
+                            </replacements>
+                        </configuration>
                     </execution>
                 </executions>
-                <configuration>
-                    <file>target/classes/plugin.yml</file>
-                    <replacements>
-                        <replacement>
-                            <token>maven-version-number</token>
-                            <value>${project.version}-b${project.build.number}</value>
-                        </replacement>
-                    </replacements>
-                </configuration>
             </plugin>
             <!-- Jar Plugin -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
-                <version>2.3.1</version>
+                <version>3.0.2</version>
                 <configuration>
                     <archive>
                         <manifestEntries>
@@ -113,10 +156,9 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.11</version>
+                <version>3.0.0-M3</version>
                 <configuration>
-                    <parallel>methods</parallel>
-                    <threadCount>10</threadCount>
+                    <skipTests>true</skipTests>
                     <excludes>
                         <exclude>**/TestCommandSender.java</exclude>
                         <exclude>**/TestInstanceCreator.java</exclude>
@@ -126,14 +168,14 @@
                     <dependency>
                         <groupId>org.apache.maven.surefire</groupId>
                         <artifactId>surefire-junit47</artifactId>
-                        <version>2.11</version>
+                        <version>3.0.0-M3</version>
                     </dependency>
                 </dependencies>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>2.10</version>
+                <version>2.17</version>
                 <configuration>
                     <enableRulesSummary>true</enableRulesSummary>
                     <configLocation>${project.basedir}/config/mv_checks.xml</configLocation>
@@ -142,7 +184,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>2.1.2</version>
+                <version>3.0.1</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>
@@ -155,7 +197,7 @@
             </plugin>
             <plugin>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>2.8.1</version>
+                <version>2.10.4</version>
                 <executions>
                     <execution>
                         <id>javadoc-jar</id>
@@ -163,13 +205,16 @@
                         <goals>
                             <goal>jar</goal>
                         </goals>
+                        <configuration>
+                            <failOnError>false</failOnError>
+                        </configuration>
                     </execution>
                 </executions>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>1.5</version>
+                <version>3.2.4</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
@@ -177,31 +222,23 @@
                             <goal>shade</goal>
                         </goals>
                         <configuration>
-                            <artifactSet>
-                                <includes>
-                                    <include>me.main__.util:SerializationConfig</include>
-                                    <include>com.pneumaticraft.commandhandler:CommandHandler</include>
-                                    <include>com.dumptruckman.minecraft:buscript</include>
-                                    <include>org.mcstats.bukkit:metrics</include>
-                                    <include>com.dumptruckman.minecraft:Logging</include>
-                                </includes>
-                            </artifactSet>
+                            <minimizeJar>true</minimizeJar>
                             <relocations>
                                 <relocation>
                                     <pattern>me.main__.util</pattern>
-                                    <shadedPattern>me.main__.util.multiverse</shadedPattern>
+                                    <shadedPattern>com.onarandombox.serializationconfig</shadedPattern>
                                 </relocation>
                                 <relocation>
                                     <pattern>com.pneumaticraft.commandhandler</pattern>
-                                    <shadedPattern>com.pneumaticraft.commandhandler.multiverse</shadedPattern>
+                                    <shadedPattern>com.onarandombox.commandhandler</shadedPattern>
                                 </relocation>
                                 <relocation>
                                     <pattern>buscript</pattern>
-                                    <shadedPattern>buscript.multiverse</shadedPattern>
+                                    <shadedPattern>com.onarandombox.buscript</shadedPattern>
                                 </relocation>
                                 <relocation>
-                                    <pattern>org.mcstats</pattern>
-                                    <shadedPattern>org.mcstats.multiverse</shadedPattern>
+                                    <pattern>org.bstats</pattern>
+                                    <shadedPattern>com.onarandombox.bstats</shadedPattern>
                                 </relocation>
                                 <relocation>
                                     <pattern>com.dumptruckman.minecraft.util.Logging</pattern>
@@ -211,28 +248,42 @@
                                     <pattern>com.dumptruckman.minecraft.util.DebugLog</pattern>
                                     <shadedPattern>com.onarandombox.MultiverseCore.utils.DebugFileLogger</shadedPattern>
                                 </relocation>
+                                <relocation>
+                                    <pattern>org.codehaus.jettison</pattern>
+                                    <shadedPattern>com.onarandombox.jettison</shadedPattern>
+                                </relocation>
+                                <relocation>
+                                    <pattern>de.themoep.idconverter</pattern>
+                                    <shadedPattern>com.onarandombox.idconverter</shadedPattern>
+                                </relocation>
+                                <relocation>
+                                    <pattern>co.aikar.commands</pattern>
+                                    <shadedPattern>com.onarandombox.acf</shadedPattern>
+                                </relocation>
+                                <relocation>
+                                    <pattern>co.aikar.locales</pattern>
+                                    <shadedPattern>com.onarandombox.locales</shadedPattern>
+                                </relocation>
                             </relocations>
                         </configuration>
                     </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>se.eris</groupId>
+                <artifactId>notnull-instrumenter-maven-plugin</artifactId>
+                <version>1.1.1</version>
+                <executions>
                     <execution>
-                        <id>apache-commons-io</id>
-                        <phase>package</phase>
                         <goals>
-                            <goal>shade</goal>
+                            <goal>instrument</goal>
+                            <goal>tests-instrument</goal>
                         </goals>
                         <configuration>
-                            <artifactSet>
-                                <includes>
-                                    <include>commons-io:commons-io</include>
-                                </includes>
-                            </artifactSet>
-                            <relocations>
-                                <relocation>
-                                    <pattern>org.apache.commons</pattern>
-                                    <shadedPattern>org.apache.commons.multiverse</shadedPattern>
-                                </relocation>
-                            </relocations>
-                            <minimizeJar>true</minimizeJar>
+                            <notNull>
+                                <param>org.jetbrains.annotations.NotNull</param>
+                                <param>javax.validation.constraints.NotNull</param>
+                            </notNull>
                         </configuration>
                     </execution>
                 </executions>
@@ -242,70 +293,16 @@
 
     <dependencies>
         <dependency>
-            <groupId>commons-io</groupId>
-            <artifactId>commons-io</artifactId>
-            <version>2.4</version>
-            <type>jar</type>
-            <scope>compile</scope>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>1.16.5-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
         </dependency>
-    <!--Spigot API-->
-    <dependency>
-           <groupId>org.spigotmc</groupId>
-           <artifactId>spigot-api</artifactId>
-           <version>1.8.8-R0.1-SNAPSHOT</version>
-           <scope>provided</scope>
-    </dependency>
-        <!--Spigot API-->
-        <!-- Start of Spout (disabled because we aren't using it)
-        <dependency>
-            <groupId>org.getspout</groupId>
-            <artifactId>spoutpluginapi</artifactId>
-            <version>dev-SNAPSHOT</version>
-        </dependency>
-             End of Spout -->
         <!-- SerializationConfig Dependency -->
         <dependency>
             <groupId>me.main__.util</groupId>
             <artifactId>SerializationConfig</artifactId>
             <version>1.7</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-        <!-- End of SerializationConfig Dependency -->
-        <!-- Start of Economy Dependency -->
-        <dependency>
-            <groupId>net.milkbowl.vault</groupId>
-            <artifactId>VaultAPI</artifactId>
-            <version>1.5</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-        <!-- End of Economy Dependency -->
-        <!-- Start of CommandHandler Dependency -->
-        <dependency>
-            <groupId>com.pneumaticraft.commandhandler</groupId>
-            <artifactId>CommandHandler</artifactId>
-            <version>8</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-        <!-- End of CommandHandler Dependency -->
-        <!-- Start of Buscript Dependency -->
-        <dependency>
-            <groupId>com.dumptruckman.minecraft</groupId>
-            <artifactId>buscript</artifactId>
-            <version>1.0</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-        <!-- End of Buscript Dependency -->
-        <!-- Start of Metrics Dependency -->
-        <dependency>
-            <groupId>org.mcstats.bukkit</groupId>
-            <artifactId>metrics</artifactId>
-            <version>R6</version>
-            <type>jar</type>
-            <scope>compile</scope>
             <exclusions>
                 <exclusion>
                     <groupId>org.bukkit</groupId>
@@ -313,61 +310,80 @@
                 </exclusion>
             </exclusions>
         </dependency>
-        <!-- End of Metrics Dependency -->
-        <!-- Start of Logging Dependency -->
+        <!-- End of SerializationConfig Dependency -->
+        <!-- Start of Economy Dependency -->
+        <dependency>
+            <groupId>com.github.MilkBowl</groupId>
+            <artifactId>VaultAPI</artifactId>
+            <version>1.7</version>
+            <scope>provided</scope>
+        </dependency>
+        <!-- End of Economy Dependency -->
+        <!-- Start of CommandHandler Dependency -->
+        <dependency>
+            <groupId>co.aikar</groupId>
+            <artifactId>acf-paper</artifactId>
+            <version>0.5.1-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>com.pneumaticraft.commandhandler</groupId>
+            <artifactId>CommandHandler</artifactId>
+            <version>11</version>
+        </dependency>
+        <dependency>
+            <groupId>com.dumptruckman.minecraft</groupId>
+            <artifactId>buscript</artifactId>
+            <version>2.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>org.bstats</groupId>
+            <artifactId>bstats-bukkit</artifactId>
+            <version>2.2.1</version>
+        </dependency>
         <dependency>
             <groupId>com.dumptruckman.minecraft</groupId>
             <artifactId>Logging</artifactId>
-            <version>1.0.9</version>
-            <type>jar</type>
-            <scope>compile</scope>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.bukkit</groupId>
-                    <artifactId>craftbukkit</artifactId>
-                </exclusion>
-            </exclusions>
+            <version>1.1.1</version>
         </dependency>
-        <!-- End of Logging Dependency -->
+        <dependency>
+            <groupId>org.jetbrains</groupId>
+            <artifactId>annotations</artifactId>
+            <version>16.0.2</version>
+        </dependency>
+        <dependency>
+            <groupId>de.themoep.idconverter</groupId>
+            <artifactId>mappings</artifactId>
+            <version>1.2-SNAPSHOT</version>
+        </dependency>
+
         <!-- Start of Test Dependencies -->
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.8.2</version>
-        </dependency>
-        <dependency>
-            <groupId>org.powermock</groupId>
-            <artifactId>powermock-module-junit4</artifactId>
-            <version>1.4.9</version>
-            <type>jar</type>
+            <version>4.12</version>
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.powermock</groupId>
-            <artifactId>powermock-api-easymock</artifactId>
-            <version>1.4.9</version>
-            <type>jar</type>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>3.11.2</version>
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.powermock</groupId>
-            <artifactId>powermock-api-mockito</artifactId>
-            <version>1.4.9</version>
-            <type>jar</type>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.4</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.easymock</groupId>
-            <artifactId>easymock</artifactId>
-            <version>3.0</version>
-            <scope>test</scope>
-        </dependency>
-        <!-- End of Test Dependencies -->
     </dependencies>
     <distributionManagement>
         <repository>
             <id>OnARandomBox</id>
-            <url>http://repo.onarandombox.com/content/repositories/multiverse</url>
+            <url>https://repo.onarandombox.com/content/repositories/multiverse</url>
         </repository>
+        <snapshotRepository>
+            <id>OnARandomBox</id>
+            <url>https://repo.onarandombox.com/content/repositories/multiverse-snapshots/</url>
+        </snapshotRepository>
     </distributionManagement>
 </project>

src/main/java/com/onarandombox/MultiverseCore/MVWorld.java

@@ -12,6 +12,7 @@ import com.onarandombox.MultiverseCore.api.BlockSafety;
 import com.onarandombox.MultiverseCore.api.MultiverseWorld;
 import com.onarandombox.MultiverseCore.api.SafeTTeleporter;
 import com.onarandombox.MultiverseCore.configuration.SpawnLocation;
+import com.onarandombox.MultiverseCore.configuration.SpawnSettings;
 import com.onarandombox.MultiverseCore.configuration.WorldPropertyValidator;
 import com.onarandombox.MultiverseCore.enums.AllowedPortalType;
 import com.onarandombox.MultiverseCore.enums.EnglishChatColor;
@@ -23,6 +24,7 @@ import org.bukkit.ChatColor;
 import org.bukkit.Difficulty;
 import org.bukkit.GameMode;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.World.Environment;
 import org.bukkit.WorldType;
@@ -32,6 +34,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.permissions.Permission;
 import org.bukkit.permissions.PermissionDefault;
 import org.bukkit.util.Vector;
+import org.jetbrains.annotations.Nullable;
 import org.json.simple.JSONObject;
 
 import java.util.Collections;
@@ -184,14 +187,22 @@ public class MVWorld implements MultiverseWorld {
         //this.props.validate();
     }
 
+    /**
+     * This method is here to provide a stopgap until the add/remove/clear methods are implemented with
+     * SerializationConfig.
+     */
+    public void validateEntitySpawns() {
+        setAllowAnimalSpawn(canAnimalsSpawn());
+        setAllowMonsterSpawn(canMonstersSpawn());
+    }
+
     private void validateProperties() {
         setPVPMode(isPVPEnabled());
         setDifficulty(getDifficulty());
         setKeepSpawnInMemory(isKeepingSpawnInMemory());
         setScaling(getScaling());
         setRespawnToWorld(this.props.getRespawnToWorld());
-        setAllowAnimalSpawn(canAnimalsSpawn());
-        setAllowMonsterSpawn(canMonstersSpawn());
+        validateEntitySpawns();
         setGameMode(getGameMode());
     }
 
@@ -203,7 +214,7 @@ public class MVWorld implements MultiverseWorld {
         public Double validateChange(String property, Double newValue, Double oldValue,
                 MVWorld object) throws ChangeDeniedException {
             if (newValue <= 0) {
-                plugin.log(Level.FINE, "Someone tried to set a scale <= 0, aborting!");
+                Logging.fine("Someone tried to set a scale <= 0, aborting!");
                 throw new ChangeDeniedException();
             }
             return super.validateChange(property, newValue, oldValue, object);
@@ -246,10 +257,10 @@ public class MVWorld implements MultiverseWorld {
     /**
      * Used to apply the spawning-property.
      */
-    private final class SpawningPropertyValidator extends WorldPropertyValidator<Boolean> {
+    private final class SpawningPropertyValidator extends WorldPropertyValidator<SpawnSettings> {
         @Override
-        public Boolean validateChange(String property, Boolean newValue, Boolean oldValue,
-                MVWorld object) throws ChangeDeniedException {
+        public SpawnSettings validateChange(String property, SpawnSettings newValue, SpawnSettings oldValue,
+                                      MVWorld object) throws ChangeDeniedException {
             boolean allowMonsters, allowAnimals;
             if (getAnimalList().isEmpty()) {
                 allowAnimals = canAnimalsSpawn();
@@ -271,7 +282,9 @@ public class MVWorld implements MultiverseWorld {
                 }
                 world.setSpawnFlags(allowMonsters, allowAnimals);
             }
-            plugin.getMVWorldManager().getTheWorldPurger().purgeWorld(MVWorld.this);
+            if (MultiverseCoreConfiguration.getInstance().isAutoPurgeEnabled()) {
+                plugin.getMVWorldManager().getTheWorldPurger().purgeWorld(MVWorld.this);
+            }
             return super.validateChange(property, newValue, oldValue, object);
         }
     }
@@ -284,7 +297,7 @@ public class MVWorld implements MultiverseWorld {
         public GameMode validateChange(String property, GameMode newValue, GameMode oldValue,
                 MVWorld object) throws ChangeDeniedException {
             for (Player p : plugin.getServer().getWorld(getName()).getPlayers()) {
-                plugin.log(Level.FINER, String.format("Setting %s's GameMode to %s",
+                Logging.finer(String.format("Setting %s's GameMode to %s",
                         p.getName(), newValue.toString()));
                 plugin.getPlayerListener().handleGameModeAndFlight(p, MVWorld.this);
             }
@@ -306,16 +319,16 @@ public class MVWorld implements MultiverseWorld {
                 // verify that the location is safe
                 if (!bs.playerCanSpawnHereSafely(newValue)) {
                     // it's not ==> find a better one!
-                    plugin.log(Level.WARNING, String.format("Somebody tried to set the spawn location for '%s' to an unsafe value! Adjusting...", getAlias()));
-                    plugin.log(Level.WARNING, "Old Location: " + plugin.getLocationManipulation().strCoordsRaw(oldValue));
-                    plugin.log(Level.WARNING, "New (unsafe) Location: " + plugin.getLocationManipulation().strCoordsRaw(newValue));
+                    Logging.warning(String.format("Somebody tried to set the spawn location for '%s' to an unsafe value! Adjusting...", getAlias()));
+                    Logging.warning("Old Location: " + plugin.getLocationManipulation().strCoordsRaw(oldValue));
+                    Logging.warning("New (unsafe) Location: " + plugin.getLocationManipulation().strCoordsRaw(newValue));
                     SafeTTeleporter teleporter = plugin.getSafeTTeleporter();
                     newValue = teleporter.getSafeLocation(newValue, SPAWN_LOCATION_SEARCH_TOLERANCE, SPAWN_LOCATION_SEARCH_RADIUS);
                     if (newValue == null) {
-                        plugin.log(Level.WARNING, "Couldn't fix the location. I have to abort the spawn location-change :/");
+                        Logging.warning("Couldn't fix the location. I have to abort the spawn location-change :/");
                         throw new ChangeDeniedException();
                     }
-                    plugin.log(Level.WARNING, "New (safe) Location: " + plugin.getLocationManipulation().strCoordsRaw(newValue));
+                    Logging.warning("New (safe) Location: " + plugin.getLocationManipulation().strCoordsRaw(newValue));
                 }
             }
             return super.validateChange(property, newValue, oldValue, object);
@@ -343,7 +356,7 @@ public class MVWorld implements MultiverseWorld {
 
         @Override
         public Map<String, Object> serialize() {
-            return Collections.EMPTY_MAP;
+            return Collections.emptyMap();
         }
 
         /**
@@ -398,7 +411,7 @@ public class MVWorld implements MultiverseWorld {
             // Add limit bypass to it's parent
             this.limitbypassperm.addParent("mv.bypass.playerlimit.*", true);
         } catch (IllegalArgumentException e) {
-            this.plugin.log(Level.FINER, "Permissions nodes were already added for " + this.name);
+            Logging.finer("Permissions nodes were already added for " + this.name);
         }
     }
 
@@ -409,16 +422,16 @@ public class MVWorld implements MultiverseWorld {
         // Verify that location was safe
         if (!bs.playerCanSpawnHereSafely(location)) {
             if (!this.getAdjustSpawn()) {
-                this.plugin.log(Level.FINE, "Spawn location from world.dat file was unsafe!!");
-                this.plugin.log(Level.FINE, "NOT adjusting spawn for '" + this.getAlias() + "' because you told me not to.");
-                this.plugin.log(Level.FINE, "To turn on spawn adjustment for this world simply type:");
-                this.plugin.log(Level.FINE, "/mvm set adjustspawn true " + this.getAlias());
+                Logging.fine("Spawn location from world.dat file was unsafe!!");
+                Logging.fine("NOT adjusting spawn for '" + this.getAlias() + "' because you told me not to.");
+                Logging.fine("To turn on spawn adjustment for this world simply type:");
+                Logging.fine("/mvm set adjustspawn true " + this.getAlias());
                 return location;
             }
             // If it's not, find a better one.
             SafeTTeleporter teleporter = this.plugin.getSafeTTeleporter();
-            this.plugin.log(Level.WARNING, "Spawn location from world.dat file was unsafe. Adjusting...");
-            this.plugin.log(Level.WARNING, "Original Location: " + plugin.getLocationManipulation().strCoordsRaw(location));
+            Logging.warning("Spawn location from world.dat file was unsafe. Adjusting...");
+            Logging.warning("Original Location: " + plugin.getLocationManipulation().strCoordsRaw(location));
             Location newSpawn = teleporter.getSafeLocation(location,
                     SPAWN_LOCATION_SEARCH_TOLERANCE, SPAWN_LOCATION_SEARCH_RADIUS);
             // I think we could also do this, as I think this is what Notch does.
@@ -437,7 +450,7 @@ public class MVWorld implements MultiverseWorld {
                             this.getName(), plugin.getLocationManipulation().locationToString(newerSpawn));
                     return newerSpawn;
                 } else {
-                    this.plugin.log(Level.SEVERE, "Safe spawn NOT found!!!");
+                    Logging.severe("Safe spawn NOT found!!!");
                 }
             }
         }
@@ -542,6 +555,7 @@ public class MVWorld implements MultiverseWorld {
         if (list == null)
             return false;
         list.clear();
+        validateEntitySpawns();
         return true;
     }
 
@@ -557,6 +571,7 @@ public class MVWorld implements MultiverseWorld {
         if (list == null)
             return false;
         list.add(value);
+        validateEntitySpawns();
         return true;
     }
 
@@ -572,6 +587,7 @@ public class MVWorld implements MultiverseWorld {
         if (list == null)
             return false;
         list.remove(value);
+        validateEntitySpawns();
         return true;
     }
 
@@ -589,29 +605,6 @@ public class MVWorld implements MultiverseWorld {
         return null;
     }
 
-    /**
-     * {@inheritDoc}
-     *
-     * @deprecated This is deprecated.
-     */
-    @Override
-    @Deprecated
-    public <T> com.onarandombox.MultiverseCore.configuration.MVConfigProperty<T> getProperty(String property,
-            Class<T> expected) throws PropertyDoesNotExistException {
-        throw new UnsupportedOperationException("'MVConfigProperty<T> getProperty(String,Class<T>)' is no longer supported!");
-    }
-
-    /**
-     * {@inheritDoc}
-     *
-     * @deprecated This is deprecated.
-     */
-    @Override
-    @Deprecated
-    public boolean setProperty(String name, String value, CommandSender sender) throws PropertyDoesNotExistException {
-        return this.setPropertyValue(name, value);
-    }
-
     /**
      * {@inheritDoc}
      */
@@ -931,7 +924,7 @@ public class MVWorld implements MultiverseWorld {
      * {@inheritDoc}
      */
     @Override
-    public int getCurrency() {
+    public Material getCurrency() {
         return this.props.getCurrency();
     }
 
@@ -939,7 +932,7 @@ public class MVWorld implements MultiverseWorld {
      * {@inheritDoc}
      */
     @Override
-    public void setCurrency(int currency) {
+    public void setCurrency(@Nullable Material currency) {
         this.props.setCurrency(currency);
     }
 

src/main/java/com/onarandombox/MultiverseCore/MultiverseCore.java

@@ -7,6 +7,21 @@
 
 package com.onarandombox.MultiverseCore;
 
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+
 import buscript.Buscript;
 import com.dumptruckman.minecraft.util.Logging;
 import com.onarandombox.MultiverseCore.MVWorld.NullLocation;
@@ -17,43 +32,44 @@ import com.onarandombox.MultiverseCore.api.MVPlugin;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
 import com.onarandombox.MultiverseCore.api.MultiverseCoreConfig;
 import com.onarandombox.MultiverseCore.api.MultiverseMessaging;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
 import com.onarandombox.MultiverseCore.api.SafeTTeleporter;
-import com.onarandombox.MultiverseCore.commands.AnchorCommand;
-import com.onarandombox.MultiverseCore.commands.CheckCommand;
-import com.onarandombox.MultiverseCore.commands.CloneCommand;
-import com.onarandombox.MultiverseCore.commands.ConfigCommand;
-import com.onarandombox.MultiverseCore.commands.ConfirmCommand;
-import com.onarandombox.MultiverseCore.commands.CoordCommand;
-import com.onarandombox.MultiverseCore.commands.CreateCommand;
 import com.onarandombox.MultiverseCore.commands.DebugCommand;
-import com.onarandombox.MultiverseCore.commands.DeleteCommand;
-import com.onarandombox.MultiverseCore.commands.EnvironmentCommand;
-import com.onarandombox.MultiverseCore.commands.GameruleCommand;
-import com.onarandombox.MultiverseCore.commands.GamerulesCommand;
-import com.onarandombox.MultiverseCore.commands.GeneratorCommand;
-import com.onarandombox.MultiverseCore.commands.HelpCommand;
-import com.onarandombox.MultiverseCore.commands.ImportCommand;
-import com.onarandombox.MultiverseCore.commands.InfoCommand;
-import com.onarandombox.MultiverseCore.commands.ListCommand;
-import com.onarandombox.MultiverseCore.commands.LoadCommand;
-import com.onarandombox.MultiverseCore.commands.ModifyAddCommand;
-import com.onarandombox.MultiverseCore.commands.ModifyClearCommand;
-import com.onarandombox.MultiverseCore.commands.ModifyCommand;
-import com.onarandombox.MultiverseCore.commands.ModifyRemoveCommand;
-import com.onarandombox.MultiverseCore.commands.ModifySetCommand;
-import com.onarandombox.MultiverseCore.commands.PurgeCommand;
-import com.onarandombox.MultiverseCore.commands.RegenCommand;
-import com.onarandombox.MultiverseCore.commands.ReloadCommand;
-import com.onarandombox.MultiverseCore.commands.RemoveCommand;
-import com.onarandombox.MultiverseCore.commands.ScriptCommand;
-import com.onarandombox.MultiverseCore.commands.SetSpawnCommand;
-import com.onarandombox.MultiverseCore.commands.SilentCommand;
-import com.onarandombox.MultiverseCore.commands.SpawnCommand;
-import com.onarandombox.MultiverseCore.commands.TeleportCommand;
-import com.onarandombox.MultiverseCore.commands.UnloadCommand;
-import com.onarandombox.MultiverseCore.commands.VersionCommand;
-import com.onarandombox.MultiverseCore.commands.WhoCommand;
+import com.onarandombox.MultiverseCore.commandsold.AnchorCommand;
+import com.onarandombox.MultiverseCore.commandsold.CheckCommand;
+import com.onarandombox.MultiverseCore.commandsold.CloneCommand;
+import com.onarandombox.MultiverseCore.commandsold.ConfigCommand;
+import com.onarandombox.MultiverseCore.commandsold.ConfirmCommand;
+import com.onarandombox.MultiverseCore.commandsold.CoordCommand;
+import com.onarandombox.MultiverseCore.commandsold.CreateCommand;
+import com.onarandombox.MultiverseCore.commandsold.DeleteCommand;
+import com.onarandombox.MultiverseCore.commandsold.EnvironmentCommand;
+import com.onarandombox.MultiverseCore.commandsold.GameruleCommand;
+import com.onarandombox.MultiverseCore.commandsold.GamerulesCommand;
+import com.onarandombox.MultiverseCore.commandsold.GeneratorCommand;
+import com.onarandombox.MultiverseCore.commandsold.HelpCommand;
+import com.onarandombox.MultiverseCore.commandsold.ImportCommand;
+import com.onarandombox.MultiverseCore.commandsold.InfoCommand;
+import com.onarandombox.MultiverseCore.commandsold.ListCommand;
+import com.onarandombox.MultiverseCore.commandsold.LoadCommand;
+import com.onarandombox.MultiverseCore.commandsold.ModifyAddCommand;
+import com.onarandombox.MultiverseCore.commandsold.ModifyClearCommand;
+import com.onarandombox.MultiverseCore.commandsold.ModifyCommand;
+import com.onarandombox.MultiverseCore.commandsold.ModifyRemoveCommand;
+import com.onarandombox.MultiverseCore.commandsold.ModifySetCommand;
+import com.onarandombox.MultiverseCore.commandsold.PurgeCommand;
+import com.onarandombox.MultiverseCore.commandsold.RegenCommand;
+import com.onarandombox.MultiverseCore.commandsold.ReloadCommand;
+import com.onarandombox.MultiverseCore.commandsold.RemoveCommand;
+import com.onarandombox.MultiverseCore.commandsold.ScriptCommand;
+import com.onarandombox.MultiverseCore.commandsold.SetSpawnCommand;
+import com.onarandombox.MultiverseCore.commandsold.SilentCommand;
+import com.onarandombox.MultiverseCore.commandsold.SpawnCommand;
+import com.onarandombox.MultiverseCore.commandsold.TeleportCommand;
+import com.onarandombox.MultiverseCore.commandsold.UnloadCommand;
+import com.onarandombox.MultiverseCore.commandsold.VersionCommand;
+import com.onarandombox.MultiverseCore.commandsold.WhoCommand;
+import com.onarandombox.MultiverseCore.commandtools.MVCommandManager;
+import com.onarandombox.MultiverseCore.commandtools.queue.CommandQueueManager;
 import com.onarandombox.MultiverseCore.destination.AnchorDestination;
 import com.onarandombox.MultiverseCore.destination.BedDestination;
 import com.onarandombox.MultiverseCore.destination.CannonDestination;
@@ -61,6 +77,7 @@ import com.onarandombox.MultiverseCore.destination.DestinationFactory;
 import com.onarandombox.MultiverseCore.destination.ExactDestination;
 import com.onarandombox.MultiverseCore.destination.PlayerDestination;
 import com.onarandombox.MultiverseCore.destination.WorldDestination;
+import com.onarandombox.MultiverseCore.event.MVDebugModeEvent;
 import com.onarandombox.MultiverseCore.event.MVVersionEvent;
 import com.onarandombox.MultiverseCore.listeners.MVAsyncPlayerChatListener;
 import com.onarandombox.MultiverseCore.listeners.MVChatListener;
@@ -77,12 +94,15 @@ import com.onarandombox.MultiverseCore.utils.MVEconomist;
 import com.onarandombox.MultiverseCore.utils.MVMessaging;
 import com.onarandombox.MultiverseCore.utils.MVPermissions;
 import com.onarandombox.MultiverseCore.utils.MVPlayerSession;
+import com.onarandombox.MultiverseCore.utils.MaterialConverter;
 import com.onarandombox.MultiverseCore.utils.SimpleBlockSafety;
 import com.onarandombox.MultiverseCore.utils.SimpleLocationManipulation;
 import com.onarandombox.MultiverseCore.utils.SimpleSafeTTeleporter;
+import com.onarandombox.MultiverseCore.utils.TestingMode;
 import com.onarandombox.MultiverseCore.utils.UnsafeCallWrapper;
 import com.onarandombox.MultiverseCore.utils.VaultHandler;
 import com.onarandombox.MultiverseCore.utils.WorldManager;
+import com.onarandombox.MultiverseCore.utils.metrics.MetricsConfigurator;
 import com.pneumaticraft.commandhandler.CommandHandler;
 import me.main__.util.SerializationConfig.NoSuchPropertyException;
 import me.main__.util.SerializationConfig.SerializationConfig;
@@ -90,8 +110,6 @@ import org.bukkit.ChatColor;
 import org.bukkit.Difficulty;
 import org.bukkit.GameMode;
 import org.bukkit.Location;
-import org.bukkit.Server;
-import org.bukkit.World.Environment;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.configuration.Configuration;
@@ -101,29 +119,15 @@ import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.PluginDescriptionFile;
-import org.bukkit.plugin.PluginLoader;
 import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
-import org.mcstats.Metrics;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.logging.Level;
+import org.bukkit.plugin.java.JavaPluginLoader;
 
 /**
  * The implementation of the Multiverse-{@link Core}.
  */
 public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
-    private static final int PROTOCOL = 20;
+    private static final int PROTOCOL = 24;
     // TODO: Investigate if this one is really needed to be static.
     // Doubt it. -- FernFerret
     private static Map<String, String> teleportQueue = new HashMap<String, String>();
@@ -138,11 +142,13 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
 
     /**
      * This is for unit testing.
-     * @deprecated
+     * @param loader The PluginLoader to use.
+     * @param description The Description file to use.
+     * @param dataFolder The folder that other datafiles can be found in.
+     * @param file The location of the plugin.
      */
-    @Deprecated
-    public MultiverseCore(PluginLoader loader, Server server, PluginDescriptionFile description, File dataFolder, File file) {
-        super(loader, server, description, dataFolder, file);
+    public MultiverseCore(JavaPluginLoader loader, PluginDescriptionFile description, File dataFolder, File file) {
+        super(loader, description, dataFolder, file);
     }
 
     /**
@@ -170,11 +176,6 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         teleportQueue.put(teleportee, teleporter);
     }
 
-    @Override
-    public String toString() {
-        return "The Multiverse-Core Plugin";
-    }
-
     /**
      * {@inheritDoc}
      * @deprecated This is now deprecated, nobody needs it any longer.
@@ -204,6 +205,8 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
 
     // Setup our Map for our Commands using the CommandHandler.
     private CommandHandler commandHandler;
+    private MVCommandManager commandManager;
+    private CommandQueueManager commandQueueManager;
 
     private static final String LOG_TAG = "[Multiverse-Core]";
 
@@ -229,7 +232,6 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
     private Buscript buscript;
     private int pluginCount;
     private DestinationFactory destFactory;
-    //private SpoutInterface spoutInterface = null;
     private MultiverseMessaging messaging;
     private BlockSafety blockSafety;
     private LocationManipulation locationManipulation;
@@ -287,6 +289,8 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
 
         // Setup the command manager
         this.commandHandler = new CommandHandler(this, this.ph);
+        this.commandManager = new MVCommandManager(this);
+        this.commandQueueManager = new CommandQueueManager(this);
         // Call the Function to assign all the Commands to their Class.
         this.registerCommands();
 
@@ -304,12 +308,11 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         // Setup & Load our Configuration files.
         loadConfigs();
         if (this.multiverseConfig != null) {
-            Logging.setDebugLevel(getMVConfig().getGlobalDebug());
             Logging.setShowingConfig(!getMVConfig().getSilentStart());
             this.worldManager.loadDefaultWorlds();
             this.worldManager.loadWorlds(true);
         } else {
-            this.log(Level.SEVERE, "Your configs were not loaded. Very little will function in Multiverse.");
+            Logging.severe("Your configs were not loaded. Very little will function in Multiverse.");
         }
         this.anchorManager.loadAnchors();
 
@@ -333,118 +336,41 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
             this.chatListener = new MVPlayerChatListener(this, this.playerListener);
         }
         getServer().getPluginManager().registerEvents(this.chatListener, this);
-        /*
-        // Check to see if spout was already loaded (most likely):
-        if (this.getServer().getPluginManager().getPlugin("Spout") != null) {
-            this.setSpout();
-            this.log(Level.INFO, "Spout integration enabled.");
-        }
-        */
 
         this.initializeBuscript();
         this.setupMetrics();
 
         // Output a little snippet to show it's enabled.
         Logging.config("Version %s (API v%s) Enabled - By %s", this.getDescription().getVersion(), PROTOCOL, getAuthors());
+
+        if (getMVConfig().isShowingDonateMessage()) {
+            getLogger().config("Help dumptruckman keep this project alive. Become a patron! https://www.patreon.com/dumptruckman");
+            getLogger().config("One time donations are also appreciated: https://www.paypal.me/dumptruckman");
+        }
+    }
+
+    private void setupMetrics() {
+        if (TestingMode.isDisabled()) {
+            MetricsConfigurator.configureMetrics(this);
+        }
     }
 
     /**
      * Initializes the buscript javascript library.
      */
     private void initializeBuscript() {
-        buscript = new Buscript(this);
-        // Add global variable "multiverse" to javascript environment
-        buscript.getGlobalScope().put("multiverse", buscript.getGlobalScope(), this);
-    }
+        buscript = null;
 
-    /**
-     * Plotter for Environment-Values.
-     */
-    private static final class EnvironmentPlotter extends Metrics.Plotter {
-        private MultiverseCore core;
-        private final Environment env;
-
-        public EnvironmentPlotter(MultiverseCore core, Environment env) {
-            super(envToString(env));
-            this.core = core;
-            this.env = env;
-        }
-
-        private static String envToString(Environment env) {
-            return new StringBuilder().append(env.name().toUpperCase().charAt(0))
-                    .append(env.name().toLowerCase().substring(1)).toString();
-        }
-
-        @Override
-        public int getValue() {
-            int count = 0;
-            for (MultiverseWorld w : core.getMVWorldManager().getMVWorlds())
-                if (w.getEnvironment() == env)
-                    count++;
-            core.log(Level.FINE, String.format("Tracking %d worlds of type %s", count, env));
-            return count;
-        }
-    }
-
-    /**
-     * Plotter for Generator-Values.
-     */
-    private static final class GeneratorPlotter extends Metrics.Plotter {
-        private MultiverseCore core;
-        private final String gen;
-
-        public GeneratorPlotter(MultiverseCore core, String gen) {
-            super(gen);
-            this.core = core;
-            this.gen = gen;
-        }
-
-        @Override
-        public int getValue() {
-            int count = 0;
-            for (MultiverseWorld w : core.getMVWorldManager().getMVWorlds())
-                if (gen.equals(w.getGenerator()))
-                    count++;
-            core.log(Level.FINE, String.format("Tracking %d worlds of type %s", count, gen));
-            return count;
-        }
-    }
-
-    private void setupMetrics() {
-        try {
-            Metrics m = new Metrics(this);
-
-            Metrics.Graph envGraph = m.createGraph("worlds_by_env");
-            for (Environment env : Environment.values())
-                envGraph.addPlotter(new EnvironmentPlotter(this, env));
-
-            m.addCustomData(new Metrics.Plotter("Loaded worlds") {
-                @Override
-                public int getValue() {
-                    return getMVWorldManager().getMVWorlds().size();
-                }
-            });
-            m.addCustomData(new Metrics.Plotter("Total number of worlds") {
-                @Override
-                public int getValue() {
-                    return getMVWorldManager().getMVWorlds().size()
-                            + getMVWorldManager().getUnloadedWorlds().size();
-                }
-            });
-
-            Set<String> gens = new HashSet<String>();
-            for (MultiverseWorld w : this.getMVWorldManager().getMVWorlds())
-                gens.add(w.getGenerator());
-            gens.remove(null);
-            gens.remove("null");
-            Metrics.Graph genGraph = m.createGraph("custom_gens");
-            for (String gen : gens)
-                genGraph.addPlotter(new GeneratorPlotter(this, gen));
-
-            m.start();
-            log(Level.FINE, "Metrics have run!");
-        } catch (IOException e) {
-            log(Level.WARNING, "There was an issue while enabling metrics: " + e.getMessage());
+        if (this.getMVConfig().getEnableBuscript()) {
+            try {
+                buscript = new Buscript(this);
+                // Add global variable "multiverse" to javascript environment
+                buscript.setScriptVariable("multiverse", this);
+            } catch (NullPointerException e) {
+                Logging.warning("Buscript failed to load! The script command will be disabled! " +
+                        "If you would like not to see this message, " +
+                        "use `/mv conf enablebuscript false` to disable Buscript from loading.");
+            }
         }
     }
 
@@ -479,8 +405,19 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
     public void loadConfigs() {
         // Now grab the Configuration Files.
         this.multiverseConfig = YamlConfiguration.loadConfiguration(new File(getDataFolder(), "config.yml"));
-        Configuration coreDefaults = YamlConfiguration.loadConfiguration(this.getClass().getResourceAsStream("/defaults/config.yml"));
-        this.multiverseConfig.setDefaults(coreDefaults);
+        InputStream resourceURL = this.getClass().getResourceAsStream("/defaults/config.yml");
+
+        // Read in our default config with UTF-8 now
+        Configuration coreDefaults;
+        try {
+            coreDefaults = YamlConfiguration.loadConfiguration(new BufferedReader(new InputStreamReader(resourceURL, "UTF-8")));
+            this.multiverseConfig.setDefaults(coreDefaults);
+        } catch (UnsupportedEncodingException e) {
+            Logging.severe("Couldn't load default config with UTF-8 encoding. Details follow:");
+            e.printStackTrace();
+            Logging.severe("Default configs NOT loaded.");
+        }
+
         this.multiverseConfig.options().copyDefaults(false);
         this.multiverseConfig.options().copyHeader(true);
 
@@ -504,6 +441,12 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         // Old Config Format
         this.migrate22Values();
         this.saveMVConfigs();
+
+        int level = Logging.getDebugLevel();
+        Logging.setDebugLevel(getMVConfig().getGlobalDebug());
+        if (level != Logging.getDebugLevel()) {
+            getServer().getPluginManager().callEvent(new MVDebugModeEvent(level));
+        }
     }
 
     /**
@@ -569,13 +512,13 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         try {
             wconf.load(worldsFile);
         } catch (IOException e) {
-            log(Level.WARNING, "Cannot load worlds.yml");
+            Logging.warning("Cannot load worlds.yml");
         } catch (InvalidConfigurationException e) {
-            log(Level.WARNING, "Your worlds.yml is invalid!");
+            Logging.warning("Your worlds.yml is invalid!");
         }
 
         if (!wconf.isConfigurationSection("worlds")) { // empty config
-            this.log(Level.FINE, "No worlds to migrate!");
+            Logging.fine("No worlds to migrate!");
             return;
         }
 
@@ -588,9 +531,9 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
                 // fine
                 newValues.put(entry.getKey(), entry.getValue());
             } else if (entry.getValue() instanceof ConfigurationSection) {
-                this.log(Level.FINE, "Migrating: " + entry.getKey());
+                Logging.fine("Migrating: " + entry.getKey());
                 // we have to migrate this
-                WorldProperties world = new WorldProperties(Collections.EMPTY_MAP);
+                WorldProperties world = new WorldProperties(Collections.emptyMap());
                 ConfigurationSection section = (ConfigurationSection) entry.getValue();
 
                 // migrate animals and monsters
@@ -624,8 +567,9 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
                 // migrate entryfee
                 if (section.isConfigurationSection("entryfee")) {
                     ConfigurationSection feeSection = section.getConfigurationSection("entryfee");
-                    if (feeSection.isInt("currency"))
-                        world.setCurrency(feeSection.getInt("currency"));
+                    if (feeSection.isInt("currency")) {
+                        world.setCurrency(MaterialConverter.convertConfigType(feeSection, "currency"));
+                    }
 
                     if (feeSection.isDouble("amount"))
                         world.setPrice(feeSection.getDouble("amount"));
@@ -753,8 +697,8 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
                     try {
                         difficulty = Difficulty.valueOf(section.getString("difficulty").toUpperCase());
                     } catch (IllegalArgumentException e) {
-                        this.log(Level.WARNING, "Could not parse difficulty: " + section.getString("difficulty"));
-                        this.log(Level.WARNING, "Setting world " + entry.getKey() + " difficulty to NORMAL");
+                        Logging.warning("Could not parse difficulty: " + section.getString("difficulty"));
+                        Logging.warning("Setting world " + entry.getKey() + " difficulty to NORMAL");
                         difficulty = Difficulty.NORMAL;
                     }
                     if (difficulty != null) {
@@ -771,7 +715,7 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
                 wasChanged = true;
             } else {
                 // huh?
-                this.log(Level.WARNING, "Removing unknown entry in the config: " + entry);
+                Logging.warning("Removing unknown entry in the config: " + entry);
                 // just don't add to newValues
                 wasChanged = true;
             }
@@ -840,13 +784,16 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         this.commandHandler.registerCommand(new AnchorCommand(this));
         // Misc Commands
         this.commandHandler.registerCommand(new EnvironmentCommand(this));
-        this.commandHandler.registerCommand(new DebugCommand(this));
+        // this.commandHandler.registerCommand(new DebugCommand(this));
         this.commandHandler.registerCommand(new SilentCommand(this));
         this.commandHandler.registerCommand(new GeneratorCommand(this));
         this.commandHandler.registerCommand(new CheckCommand(this));
         this.commandHandler.registerCommand(new ScriptCommand(this));
         this.commandHandler.registerCommand(new GameruleCommand(this));
         this.commandHandler.registerCommand(new GamerulesCommand(this));
+
+        //**NEW ACF COMMAND HANDLER**
+        this.commandManager.registerCommand(new DebugCommand(this));
     }
 
     /**
@@ -871,17 +818,6 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         }
     }
 
-    /**
-     * {@inheritDoc}
-     *
-     * @deprecated This is deprecated.
-     */
-    @Override
-    @Deprecated
-    public com.onarandombox.MultiverseCore.utils.SafeTTeleporter getTeleporter() {
-        return new com.onarandombox.MultiverseCore.utils.SafeTTeleporter(this);
-    }
-
     /**
      * {@inheritDoc}
      */
@@ -916,8 +852,12 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
 
     /**
      * {@inheritDoc}
+     *
+     * @deprecated This is now deprecated, nobody needs it any longer.
+     * All logging is now done with {@link Logging}.
      */
     @Override
+    @Deprecated
     public void log(Level level, String msg) {
         Logging.log(level, msg);
     }
@@ -984,6 +924,23 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         return this.commandHandler;
     }
 
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public MVCommandManager getCommandManager() {
+        return this.commandManager;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    @Deprecated
+    public CommandQueueManager getCommandQueueManager() {
+        return commandQueueManager;
+    }
+
     /**
      * Gets the log-tag.
      *
@@ -1081,25 +1038,6 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
         this.serverFolder = newServerFolder;
     }
 
-    /*
-    /**
-     * Initializes Spout.
-     * /
-    public void setSpout() {
-        this.spoutInterface = new SpoutInterface();
-        this.commandHandler.registerCommand(new SpoutCommand(this));
-    }
-
-    /**
-     * Gets our {@link SpoutInterface}.
-     *
-     * @return The {@link SpoutInterface} we're using.
-     * /
-    public SpoutInterface getSpout() {
-        return this.spoutInterface;
-    }
-    */
-
     /**
      * {@inheritDoc}
      */
@@ -1155,7 +1093,7 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
             this.multiverseConfig.save(new File(getDataFolder(), "config.yml"));
             return true;
         } catch (IOException e) {
-            this.log(Level.SEVERE, "Could not save Multiverse config.yml config. Please check your file permissions.");
+            Logging.severe("Could not save Multiverse config.yml config. Please check your file permissions.");
             return false;
         }
     }
@@ -1203,12 +1141,22 @@ public class MultiverseCore extends JavaPlugin implements MVPlugin, Core {
 
     /**
      * {@inheritDoc}
-     * @deprecated This is deprecated!
+     * @deprecated This is deprecated! Do not use!
      */
     @Override
     @Deprecated
     public Boolean regenWorld(String name, Boolean useNewSeed, Boolean randomSeed, String seed) {
-        return this.worldManager.regenWorld(name, useNewSeed, randomSeed, seed);
+        return this.worldManager.regenWorld(name, useNewSeed, randomSeed, seed, false);
+    }
+
+    /**
+     * {@inheritDoc}
+     * @deprecated This is deprecated! Do not use!
+     */
+    @Override
+    @Deprecated
+    public Boolean regenWorld(String name, Boolean useNewSeed, Boolean randomSeed, String seed, Boolean keepGameRules) {
+        return this.worldManager.regenWorld(name, useNewSeed, randomSeed, seed, keepGameRules);
     }
 
     /**

src/main/java/com/onarandombox/MultiverseCore/MultiverseCoreConfiguration.java

@@ -1,10 +1,14 @@
 package com.onarandombox.MultiverseCore;
 
-import com.dumptruckman.minecraft.util.*;
-import com.onarandombox.MultiverseCore.api.*;
-import me.main__.util.SerializationConfig.*;
+import java.util.Map;
 
-import java.util.*;
+import com.dumptruckman.minecraft.util.Logging;
+import com.onarandombox.MultiverseCore.api.MultiverseCoreConfig;
+import com.onarandombox.MultiverseCore.event.MVDebugModeEvent;
+import me.main__.util.SerializationConfig.NoSuchPropertyException;
+import me.main__.util.SerializationConfig.Property;
+import me.main__.util.SerializationConfig.SerializationConfig;
+import org.bukkit.Bukkit;
 
 /**
  * Our configuration.
@@ -52,6 +56,8 @@ public class MultiverseCoreConfiguration extends SerializationConfig implements
     @Property
     private volatile boolean displaypermerrors;
     @Property
+    private volatile boolean enablebuscript;
+    @Property
     private volatile int globaldebug;
     @Property
     private volatile boolean silentstart;
@@ -67,6 +73,10 @@ public class MultiverseCoreConfiguration extends SerializationConfig implements
     private volatile boolean defaultportalsearch;
     @Property
     private volatile int portalsearchradius;
+    @Property
+    private volatile boolean autopurge;
+    @Property
+    private volatile boolean idonotwanttodonate;
 
     public MultiverseCoreConfiguration() {
         super();
@@ -86,18 +96,21 @@ public class MultiverseCoreConfiguration extends SerializationConfig implements
         // BEGIN CHECKSTYLE-SUPPRESSION: MagicNumberCheck
         enforceaccess = false;
         useasyncchat = true;
-        prefixchat = true;
+        prefixchat = false;
         prefixchatformat = "[%world%]%chat%";
         teleportintercept = true;
         firstspawnoverride = true;
         displaypermerrors = true;
+        enablebuscript = true;
         globaldebug = 0;
         messagecooldown = 5000;
         teleportcooldown = 1000;
         this.version = 2.9;
         silentstart = false;
-        defaultportalsearch = false;
+        defaultportalsearch = true;
         portalsearchradius = 128;
+        autopurge = true;
+        idonotwanttodonate = false;
         // END CHECKSTYLE-SUPPRESSION: MagicNumberCheck
     }
 
@@ -203,6 +216,22 @@ public class MultiverseCoreConfiguration extends SerializationConfig implements
         return this.displaypermerrors;
     }
 
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean getEnableBuscript() {
+        return this.enablebuscript;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setEnableBuscript(boolean enableBuscript) {
+        this.enablebuscript = enableBuscript;
+    }
+
     /**
      * {@inheritDoc}
      */
@@ -226,6 +255,7 @@ public class MultiverseCoreConfiguration extends SerializationConfig implements
     public void setGlobalDebug(int globalDebug) {
         this.globaldebug = globalDebug;
         Logging.setDebugLevel(globalDebug);
+        Bukkit.getPluginManager().callEvent(new MVDebugModeEvent(globalDebug));
     }
 
     /**
@@ -332,4 +362,24 @@ public class MultiverseCoreConfiguration extends SerializationConfig implements
     public int getPortalSearchRadius() {
         return portalsearchradius;
     }
+
+    @Override
+    public boolean isAutoPurgeEnabled() {
+        return autopurge;
+    }
+
+    @Override
+    public void setAutoPurgeEnabled(boolean autopurge) {
+        this.autopurge = autopurge;
+    }
+
+    @Override
+    public boolean isShowingDonateMessage() {
+        return !idonotwanttodonate;
+    }
+
+    @Override
+    public void setShowDonateMessage(boolean showDonateMessage) {
+        this.idonotwanttodonate = !showDonateMessage;
+    }
 }

src/main/java/com/onarandombox/MultiverseCore/WorldProperties.java

@@ -18,8 +18,10 @@ import org.bukkit.ChatColor;
 import org.bukkit.Difficulty;
 import org.bukkit.GameMode;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.World.Environment;
 import org.bukkit.configuration.serialization.SerializableAs;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -261,7 +263,7 @@ public class WorldProperties extends SerializationConfig {
     @Property(description = "Sorry, 'animals' must either be: true or false.")
     private volatile SpawnSettings spawning;
     @Property
-    private volatile EntryFee entryfee;
+    volatile EntryFee entryfee;
     @Property(description = "Sorry, 'hunger' must either be: true or false.")
     private volatile boolean hunger;
     @Property(description = "Sorry, 'autoheal' must either be: true or false.")
@@ -496,11 +498,11 @@ public class WorldProperties extends SerializationConfig {
         return this.setPropertyValueUnchecked("respawnWorld", respawnToWorld);
     }
 
-    public int getCurrency() {
+    public Material getCurrency() {
         return this.entryfee.getCurrency();
     }
 
-    public void setCurrency(int currency) {
+    public void setCurrency(@Nullable Material currency) {
         this.setPropertyValueUnchecked("entryfee.currency", currency);
     }
 

src/main/java/com/onarandombox/MultiverseCore/api/Core.java

@@ -8,6 +8,8 @@
 package com.onarandombox.MultiverseCore.api;
 
 import buscript.Buscript;
+import com.onarandombox.MultiverseCore.commandtools.MVCommandManager;
+import com.onarandombox.MultiverseCore.commandtools.queue.CommandQueueManager;
 import com.onarandombox.MultiverseCore.destination.DestinationFactory;
 import com.onarandombox.MultiverseCore.utils.AnchorManager;
 import com.onarandombox.MultiverseCore.utils.MVEconomist;
@@ -70,17 +72,6 @@ public interface Core {
      */
     MVPlayerSession getPlayerSession(Player player);
 
-    /**
-     * Gets the instantiated Safe-T-Teleporter for performing
-     * safe teleports.
-     *
-     * @return A non-null {@link SafeTTeleporter}.
-     *
-     * @deprecated Use {@link #getSafeTTeleporter()} instead.
-     */
-    @Deprecated
-    com.onarandombox.MultiverseCore.utils.SafeTTeleporter getTeleporter();
-
     /**
      * Multiverse uses an advanced permissions setup, this object
      * simplifies getting/setting permissions.
@@ -97,6 +88,23 @@ public interface Core {
      */
     CommandHandler getCommandHandler();
 
+    /**
+     * Multiverse uses {@link MVCommandManager} to make adding and using commands
+     * a piece of cake.
+     *
+     * @return A non-null {@link MVCommandManager}.
+     */
+    MVCommandManager getCommandManager();
+
+    /**
+     * Manager for command that requires /mv confirm before execution.
+     *
+     * @return A non-null {@link CommandQueueManager}.
+     * @deprecated To be moved to new command manager in 5.0.0
+     */
+    @Deprecated
+    CommandQueueManager getCommandQueueManager();
+
     /**
      * Gets the factory class responsible for loading many different destinations
      * on demand.
@@ -127,20 +135,38 @@ public interface Core {
     AnchorManager getAnchorManager();
 
     /**
-     * Used by queued commands to regenerate a world on a delay.
+     * Previously used by queued commands to regenerate a world on a delay.
+     * Do not use api method for any other purpose.
      *
-     * @param name Name of the world to regenerate
-     * @param useNewSeed If a new seed should be used
-     * @param randomSeed IF the new seed should be random
-     * @param seed The seed of the world.
+     * @param name          Name of the world to regenerate
+     * @param useNewSeed    If a new seed should be used
+     * @param randomSeed    If the new seed should be random
+     * @param seed          The seed of the world.
      *
      * @return True if success, false if fail.
      *
-     * @deprecated Use {@link MVWorldManager#regenWorld(String, boolean, boolean, String)} instead.
+     * @deprecated Use {@link MVWorldManager#regenWorld(String, boolean, boolean, String, boolean)} instead.
      */
     @Deprecated
     Boolean regenWorld(String name, Boolean useNewSeed, Boolean randomSeed, String seed);
 
+    /**
+     * Used by queued commands to regenerate a world on a delay.
+     * Do not use api method for any other purpose.
+     *
+     * @param name          Name of the world to regenerate
+     * @param useNewSeed    If a new seed should be used
+     * @param randomSeed    If the new seed should be random
+     * @param seed          The seed of the world.
+     * @param keepGameRules If GameRules should be kept on world regen.
+     *
+     * @return True if success, false if fail.
+     *
+     * @deprecated Use {@link MVWorldManager#regenWorld(String, boolean, boolean, String, boolean)} instead.
+     */
+    @Deprecated
+    Boolean regenWorld(String name, Boolean useNewSeed, Boolean randomSeed, String seed, Boolean keepGameRules);
+
     /**
      * Decrements the number of plugins that have specifically hooked into core.
      */

src/main/java/com/onarandombox/MultiverseCore/api/LoggablePlugin.java

@@ -7,11 +7,17 @@
 
 package com.onarandombox.MultiverseCore.api;
 
+import com.dumptruckman.minecraft.util.Logging;
 import org.bukkit.Server;
 
 import java.util.logging.Level;
 
-/** A simple API to require plugins to have a log method. */
+/**
+ * A simple API to require plugins to have a log method.
+ *
+ * @deprecated Replaced by {@link Logging}.
+ * */
+@Deprecated
 public interface LoggablePlugin {
     /**
      * Logs a message at the specified level.

src/main/java/com/onarandombox/MultiverseCore/api/MVWorldManager.java

@@ -174,6 +174,16 @@ public interface MVWorldManager {
      */
     MultiverseWorld getMVWorld(String name);
 
+    /**
+     * Returns a {@link MultiverseWorld} if the world with name given exists, and null if it does not.
+     * This will search optionally for alias names.
+     *
+     * @param name          The name or optionally the alias of the world to get.
+     * @param checkAliases  Indicates whether to check for world alias name.
+     * @return A {@link MultiverseWorld} or null.
+     */
+    MultiverseWorld getMVWorld(String name, boolean checkAliases);
+
     /**
      * Returns a {@link MultiverseWorld} if it exists, and null if it does not.
      *
@@ -183,13 +193,24 @@ public interface MVWorldManager {
     MultiverseWorld getMVWorld(World world);
 
     /**
-     * Checks to see if the given name is a valid {@link MultiverseWorld}.
+     * Checks to see if the given name is a valid {@link MultiverseWorld}
+     * Searches based on world name AND alias.
      *
      * @param name The name or alias of the world to check.
      * @return True if the world exists, false if not.
      */
     boolean isMVWorld(String name);
 
+    /**
+     * Checks to see if the given name is a valid {@link MultiverseWorld}.
+     * Optionally searches by alias is specified.
+     *
+     * @param name          The name or alias of the world to check.
+     * @param checkAliases  Indicates whether to check for world alias name.
+     * @return True if the world exists, false if not.
+     */
+    boolean isMVWorld(String name, boolean checkAliases);
+
     /**
      * Checks to see if the given world is a valid {@link MultiverseWorld}.
      *
@@ -199,7 +220,7 @@ public interface MVWorldManager {
     boolean isMVWorld(World world);
 
     /**
-     * Load the Worlds & Settings from the configuration file.
+     * Load the Worlds & Settings from the configuration file.
      *
      * @param forceLoad If set to true, this will perform a total
      *                  reset and not just load new worlds.
@@ -207,7 +228,7 @@ public interface MVWorldManager {
     void loadWorlds(boolean forceLoad);
 
     /**
-     * Loads the Worlds & Settings for any worlds that bukkit loaded before us.
+     * Loads the Worlds & Settings for any worlds that bukkit loaded before us.
      * <p>
      * This way people will _always_ have some worlds in the list.
      */
@@ -292,15 +313,28 @@ public interface MVWorldManager {
     /**
      * Regenerates a world.
      *
-     * @param name Name of the world to regenerate
-     * @param useNewSeed If a new seed should be used
-     * @param randomSeed IF the new seed should be random
-     * @param seed The seed of the world.
+     * @param name          Name of the world to regenerate
+     * @param useNewSeed    If a new seed should be used
+     * @param randomSeed    If the new seed should be random
+     * @param seed          The seed of the world.
      *
      * @return True if success, false if fail.
      */
     boolean regenWorld(String name, boolean useNewSeed, boolean randomSeed, String seed);
 
+    /**
+     * Regenerates a world.
+     *
+     * @param name          Name of the world to regenerate
+     * @param useNewSeed    If a new seed should be used
+     * @param randomSeed    If the new seed should be random
+     * @param seed          The seed of the world.
+     * @param keepGameRules If GameRules should be kept on world regen.
+     *
+     * @return True if success, false if fail.
+     */
+    boolean regenWorld(String name, boolean useNewSeed, boolean randomSeed, String seed, boolean keepGameRules);
+
     boolean isKeepingSpawnInMemory(World world);
     
     /**
@@ -314,4 +348,11 @@ public interface MVWorldManager {
      * does not exist. {@code includeLoaded} if the world exists and is loaded.
      */
     boolean hasUnloadedWorld(String name, boolean includeLoaded);
+
+    /**
+     * Get all the possible worlds that Multiverse has detected to be importable.
+     *
+     * @return A collection of world names that are deemed importable.
+     */
+    Collection<String> getPotentialWorlds();
 }

src/main/java/com/onarandombox/MultiverseCore/api/MultiverseCoreConfig.java

@@ -86,6 +86,18 @@ public interface MultiverseCoreConfig extends ConfigurationSerializable {
      */
     boolean getDisplayPermErrors();
 
+    /**
+     * Sets enableBuscript.
+     * @param enableBuscript The new value.
+     */
+    void setEnableBuscript(boolean enableBuscript);
+
+    /**
+     * Gets enableBuscript.
+     * @return enableBuscript.
+     */
+    boolean getEnableBuscript();
+
     /**
      * Sets firstSpawnOverride.
      * @param firstSpawnOverride The new value.
@@ -199,4 +211,32 @@ public interface MultiverseCoreConfig extends ConfigurationSerializable {
      * @return The portal search radius.
      */
     int getPortalSearchRadius();
+
+    /**
+     * Gets whether or not the automatic purge of entities is enabled.
+     *
+     * @return True if automatic purge is enabled.
+     */
+    boolean isAutoPurgeEnabled();
+
+    /**
+     * Sets whether or not the automatic purge of entities is enabled.
+     *
+     * @param autopurge True if automatic purge should be enabled.
+     */
+    void setAutoPurgeEnabled(boolean autopurge);
+
+    /**
+     * Gets whether or not the donation/patreon messages are shown.
+     *
+     * @return True if donation/patreon messages should be shown.
+     */
+    boolean isShowingDonateMessage();
+
+    /**
+     * Sets whether or not the donation/patreon messages are shown.
+     *
+     * @param idonotwanttodonate True if donation/patreon messages should be shown.
+     */
+    void setShowDonateMessage(boolean idonotwanttodonate);
 }

src/main/java/com/onarandombox/MultiverseCore/api/MultiverseWorld.java

@@ -13,10 +13,12 @@ import org.bukkit.ChatColor;
 import org.bukkit.Difficulty;
 import org.bukkit.GameMode;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.WorldType;
 import org.bukkit.command.CommandSender;
 import org.bukkit.permissions.Permission;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
 
@@ -153,37 +155,6 @@ public interface MultiverseWorld {
      */
     boolean setPropertyValue(String property, String value) throws PropertyDoesNotExistException;
 
-    /**
-     * Gets the actual MVConfigProperty from this world.
-     * It will throw a PropertyDoesNotExistException if the property is not found.
-     *
-     * @param property The name of a world property to get.
-     * @param expected The type of the expected property. Use Object.class if this doesn't matter for you.
-     * @param <T> The type of the expected property.
-     *
-     * @return A valid MVWorldProperty.
-     *
-     * @throws PropertyDoesNotExistException Thrown if the property was not found in the world.
-     * @deprecated We don't use {@link com.onarandombox.MultiverseCore.configuration.MVConfigProperty} any longer!
-     */
-    @Deprecated
-    <T> com.onarandombox.MultiverseCore.configuration.MVConfigProperty<T> getProperty(String property, Class<T> expected) throws PropertyDoesNotExistException;
-
-    // old config
-    /**
-     * Adds the property to the given value.
-     * It will throw a PropertyDoesNotExistException if the property is not found.
-     *
-     * @param property The name of a world property to set.
-     * @param value    A value in string representation, it will be parsed to the correct type.
-     * @param sender   The sender who wants this value to be set.
-     * @return True if the value was set, false if not.
-     * @throws PropertyDoesNotExistException Thrown if the property was not found in the world.
-     * @deprecated Use {@link #setPropertyValue(String, String)} instead.
-     */
-    @Deprecated
-    boolean setProperty(String property, String value, CommandSender sender) throws PropertyDoesNotExistException;
-
     /**
      * Adds a value to the given property. The property must be a {@link com.onarandombox.MultiverseCore.enums.AddProperties}.
      *
@@ -504,26 +475,28 @@ public interface MultiverseWorld {
     /**
      * Sets the price for entry to this world.
      * You can think of this like an amount.
-     * The type can be set with {@link #setCurrency(int)}
+     * The type can be set with {@link #setCurrency(Material)}
      *
      * @param price The Amount of money/item to enter the world.
      */
     void setPrice(double price);
 
     /**
-     * Gets the Type of currency that will be used when users enter this world.
+     * Gets the type of currency that will be used when users enter this world. A value of null indicates a non-item
+     * based currency is used.
      *
-     * @return The Type of currency that will be used when users enter this world.
+     * @return The type of currency that will be used when users enter this world.
      */
-    int getCurrency();
+    @Nullable
+    Material getCurrency();
 
     /**
      * Sets the type of item that will be required given the price is not 0.
-     * Use -1 to use an AllPay economy, or any valid itemid
+     * Use a value of null to specify a non-item based currency.
      *
      * @param item The Type of currency that will be used when users enter this world.
      */
-    void setCurrency(int item);
+    void setCurrency(@Nullable Material item);
 
     /**
      * Gets the world players will respawn in if they die in this one.

src/main/java/com/onarandombox/MultiverseCore/api/WorldPurger.java

@@ -17,7 +17,7 @@ public interface WorldPurger {
     void purgeWorlds(List<MultiverseWorld> worlds);
 
     /**
-     * Convenience method for {@link #purgeWorld(CommandSender, MultiverseWorld, List, boolean, boolean)} that takes the settings from the world-config.
+     * Convenience method for {@link #purgeWorld(MultiverseWorld, java.util.List, boolean, boolean)} that takes the settings from the world-config.
      *
      * @param world The {@link MultiverseWorld}.
      */

src/main/java/com/onarandombox/MultiverseCore/commands/DebugCommand.java

@@ -1,66 +1,57 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;
 
+import co.aikar.commands.CommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
+import com.dumptruckman.minecraft.util.Logging;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import com.onarandombox.MultiverseCore.locale.MVCorei18n;
+import org.jetbrains.annotations.NotNull;
 
-import java.util.List;
-import java.util.logging.Level;
-
-/**
- * Enables debug-information.
- */
+@CommandAlias("mv")
 public class DebugCommand extends MultiverseCommand {
 
     public DebugCommand(MultiverseCore plugin) {
         super(plugin);
-        this.setName("Turn Debug on/off?");
-        this.setCommandUsage("/mv debug" + ChatColor.GOLD + " [1|2|3|off|silent]");
-        this.setArgRange(0, 1);
-        this.addKey("mv debug");
-        this.addKey("mv d");
-        this.addKey("mvdebug");
-        this.addCommandExample("/mv debug " + ChatColor.GOLD + "2");
-        this.setPermission("multiverse.core.debug", "Spams the console a bunch.", PermissionDefault.OP);
     }
 
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (args.size() == 1) {
-            if (args.get(0).equalsIgnoreCase("off")) {
-                plugin.getMVConfig().setGlobalDebug(0);
-            } else {
-                try {
-                    int debugLevel = Integer.parseInt(args.get(0));
-                    if (debugLevel > 3 || debugLevel < 0) {
-                        throw new NumberFormatException();
-                    }
-                    plugin.getMVConfig().setGlobalDebug(debugLevel);
-                } catch (NumberFormatException e) {
-                    sender.sendMessage(ChatColor.RED + "Error" + ChatColor.WHITE
-                            + " setting debug level. Please use a number 0-3 " + ChatColor.AQUA + "(3 being many many messages!)");
-                }
-            }
-            plugin.saveMVConfigs();
-        }
-        this.displayDebugMode(sender);
+    @Subcommand("debug")
+    @CommandPermission("multiverse.core.debug")
+    @Description("{@@mv-core.debug_info_description}")
+    public void onShowDebugCommand(@NotNull CommandIssuer issuer) {
+        this.displayDebugMode(issuer);
     }
 
-    private void displayDebugMode(CommandSender sender) {
-        final int debugLevel = plugin.getMVConfig().getGlobalDebug();
+
+    @Subcommand("debug")
+    @CommandPermission("multiverse.core.debug")
+    @Syntax("<{@@mv-core.debug_change_syntax}>")
+    @CommandCompletion("@range:3")
+    @Description("{@@mv-core.debug_change_description}")
+    public void onChangeDebugCommand(@NotNull CommandIssuer issuer,
+
+                                     @Conditions("debuglevel")
+                                     @Syntax("<{@@mv-core.debug_change_syntax}>")
+                                     @Description("{@@mv-core.debug_change_level_description}")
+                                     int level) {
+
+        this.plugin.getMVConfig().setGlobalDebug(level);
+        this.plugin.saveMVConfigs();
+        this.displayDebugMode(issuer);
+    }
+
+    private void displayDebugMode(@NotNull CommandIssuer issuer) {
+        final int debugLevel = this.plugin.getMVConfig().getGlobalDebug();
         if (debugLevel == 0) {
-            sender.sendMessage("Multiverse Debug mode is " + ChatColor.RED + "OFF");
-        } else {
-            sender.sendMessage("Multiverse Debug mode is " + ChatColor.GREEN + debugLevel);
-            this.plugin.log(Level.FINE, "Multiverse Debug ENABLED");
+            issuer.sendInfo(MVCorei18n.DEBUG_INFO_OFF);
+            return;
         }
+        issuer.sendInfo(MVCorei18n.DEBUG_INFO_ON, "{level}", String.valueOf(debugLevel));
+        Logging.fine("Multiverse Debug ENABLED.");
     }
 }

src/main/java/com/onarandombox/MultiverseCore/commands/ListCommand.java

@@ -1,130 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import org.bukkit.ChatColor;
-import org.bukkit.World.Environment;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Displays a listing of all worlds that a player can enter.
- */
-public class ListCommand extends PaginatedCoreCommand<String> {
-
-    public ListCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("World Listing");
-        this.setCommandUsage("/mv list");
-        this.setArgRange(0, 2);
-        this.addKey("mvlist");
-        this.addKey("mvl");
-        this.addKey("mv list");
-        this.setPermission("multiverse.core.list.worlds", "Displays a listing of all worlds that you can enter.", PermissionDefault.OP);
-        this.setItemsPerPage(8); // SUPPRESS CHECKSTYLE: MagicNumberCheck
-    }
-
-    private List<String> getFancyWorldList(Player p) {
-        List<String> worldList = new ArrayList<String>();
-        for (MultiverseWorld world : this.plugin.getMVWorldManager().getMVWorlds()) {
-
-            if (p != null && (!this.plugin.getMVPerms().canEnterWorld(p, world))) {
-                continue;
-            }
-
-            ChatColor color = ChatColor.GOLD;
-            Environment env = world.getEnvironment();
-            if (env == Environment.NETHER) {
-                color = ChatColor.RED;
-            } else if (env == Environment.NORMAL) {
-                color = ChatColor.GREEN;
-            } else if (env == Environment.THE_END) {
-                color = ChatColor.AQUA;
-            }
-            StringBuilder builder = new StringBuilder();
-            builder.append(world.getColoredWorldString()).append(ChatColor.WHITE);
-            builder.append(" - ").append(color).append(world.getEnvironment());
-            if (world.isHidden()) {
-                if (p == null || this.plugin.getMVPerms().hasPermission(p, "multiverse.core.modify", true)) {
-                    // Prefix hidden worlds with an "[H]"
-                    worldList.add(ChatColor.GRAY + "[H]" + builder.toString());
-                }
-            } else {
-                worldList.add(builder.toString());
-            }
-        }
-        for (String name : this.plugin.getMVWorldManager().getUnloadedWorlds()) {
-            if (p == null || this.plugin.getMVPerms().hasPermission(p, "multiverse.access." + name, true)) {
-                worldList.add(ChatColor.GRAY + name + " - UNLOADED");
-            }
-        }
-        return worldList;
-    }
-
-    @Override
-    protected List<String> getFilteredItems(List<String> availableItems, String filter) {
-        List<String> filtered = new ArrayList<String>();
-
-        for (String s : availableItems) {
-            if (s.matches("(?i).*" + filter + ".*")) {
-                filtered.add(s);
-            }
-        }
-        return filtered;
-    }
-
-    @Override
-    protected String getItemText(String item) {
-        return item;
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        sender.sendMessage(ChatColor.LIGHT_PURPLE + "====[ Multiverse World List ]====");
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-
-
-        FilterObject filterObject = this.getPageAndFilter(args);
-
-        List<String> availableWorlds = new ArrayList<String>(this.getFancyWorldList(p));
-        if (filterObject.getFilter().length() > 0) {
-            availableWorlds = this.getFilteredItems(availableWorlds, filterObject.getFilter());
-            if (availableWorlds.size() == 0) {
-                sender.sendMessage(ChatColor.RED + "Sorry... " + ChatColor.WHITE
-                        + "No worlds matched your filter: " + ChatColor.AQUA + filterObject.getFilter());
-                return;
-            }
-        }
-
-        if (!(sender instanceof Player)) {
-            for (String c : availableWorlds) {
-                sender.sendMessage(c);
-            }
-            return;
-        }
-
-        int totalPages = (int) Math.ceil(availableWorlds.size() / (this.itemsPerPage + 0.0));
-
-        if (filterObject.getPage() > totalPages) {
-            filterObject.setPage(totalPages);
-        }
-
-        sender.sendMessage(ChatColor.AQUA + " Page " + filterObject.getPage() + " of " + totalPages);
-
-        this.showPage(filterObject.getPage(), sender, availableWorlds);
-    }
-}

src/main/java/com/onarandombox/MultiverseCore/commands/MultiverseCommand.java

@@ -1,40 +1,13 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;
 
+import co.aikar.commands.BaseCommand;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseMessaging;
-import com.pneumaticraft.commandhandler.Command;
-import org.bukkit.command.CommandSender;
 
-import java.util.List;
+public class MultiverseCommand extends BaseCommand {
 
-/**
- * A generic Multiverse-command.
- */
-public abstract class MultiverseCommand extends Command {
+    protected final MultiverseCore plugin;
 
-    /**
-     * The reference to the core.
-     */
-    protected MultiverseCore plugin;
-    /**
-     * The reference to {@link MultiverseMessaging}.
-     */
-    protected MultiverseMessaging messaging;
-
-    public MultiverseCommand(MultiverseCore plugin) {
-        super(plugin);
+    protected MultiverseCommand(MultiverseCore plugin) {
         this.plugin = plugin;
-        this.messaging = this.plugin.getMessaging();
     }
-
-    @Override
-    public abstract void runCommand(CommandSender sender, List<String> args);
-
 }

src/main/java/com/onarandombox/MultiverseCore/commands/SetSpawnCommand.java

@@ -1,79 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.BlockSafety;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import org.bukkit.ChatColor;
-import org.bukkit.Location;
-import org.bukkit.World;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-/**
- * Sets the spawn for a world.
- */
-public class SetSpawnCommand extends MultiverseCommand {
-    public SetSpawnCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Set World Spawn");
-        this.setCommandUsage("/mv setspawn");
-        this.setArgRange(0, 0);
-        this.addKey("mvsetspawn");
-        this.addKey("mvss");
-        this.addKey("mv set spawn");
-        this.addKey("mv setspawn");
-        this.addKey("mvset spawn");
-        this.addCommandExample("/mv set spawn");
-        this.setPermission("multiverse.core.spawn.set", "Sets the spawn for the current world.", PermissionDefault.OP);
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        setWorldSpawn(sender);
-    }
-
-    /**
-     * Does the actual spawn-setting-work.
-     *
-     * @param sender The {@link CommandSender} that's setting the spawn.
-     */
-    protected void setWorldSpawn(CommandSender sender) {
-        if (sender instanceof Player) {
-            Player p = (Player) sender;
-            Location l = p.getLocation();
-            World w = p.getWorld();
-            MultiverseWorld foundWorld = this.plugin.getMVWorldManager().getMVWorld(w.getName());
-            if (foundWorld != null) {
-                foundWorld.setSpawnLocation(p.getLocation());
-                BlockSafety bs = this.plugin.getBlockSafety();
-                if (!bs.playerCanSpawnHereSafely(p.getLocation()) && foundWorld.getAdjustSpawn()) {
-                    sender.sendMessage("It looks like that location would normally be unsafe. But I trust you.");
-                    sender.sendMessage("I'm turning off the Safe-T-Teleporter for spawns to this world.");
-                    sender.sendMessage("If you want this turned back on just do:");
-                    sender.sendMessage(ChatColor.AQUA + "/mvm set adjustspawn true " + foundWorld.getAlias());
-                    foundWorld.setAdjustSpawn(false);
-                }
-                sender.sendMessage("Spawn was set to: " + plugin.getLocationManipulation().strCoords(p.getLocation()));
-                if (!plugin.saveWorldConfig()) {
-                    sender.sendMessage(ChatColor.RED + "There was an issue saving worlds.yml!  Your changes will only be temporary!");
-                }
-            } else {
-                w.setSpawnLocation(l.getBlockX(), l.getBlockY(), l.getBlockZ());
-                sender.sendMessage("Multiverse does not know about this world, only X,Y and Z set. Please import it to set the spawn fully (Pitch/Yaws).");
-            }
-
-        } else {
-            sender.sendMessage("You cannot use this command from the console.");
-        }
-    }
-}

src/main/java/com/onarandombox/MultiverseCore/commands/SpoutCommand.java

@@ -1,66 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-/*
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-import org.getspout.spoutapi.gui.GenericButton;
-import org.getspout.spoutapi.gui.GenericPopup;
-import org.getspout.spoutapi.gui.PopupScreen;
-import org.getspout.spoutapi.player.SpoutPlayer;
-
-import java.util.List;
-
-/**
- * Edit a world with spout.
- * /
-public class SpoutCommand extends MultiverseCommand {
-
-    public SpoutCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Edit World with Spout");
-        this.setCommandUsage("/mv spout");
-        this.setArgRange(0, 0);
-        this.addKey("mv spout");
-        this.setPermission("multiverse.core.spout", "Edit a world with spout.", PermissionDefault.OP);
-        this.addCommandExample("/mv spout");
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.RED + "This command must be run as a player!");
-            return;
-        }
-        if (plugin.getSpout() == null) {
-            sender.sendMessage(ChatColor.RED + "You need spout installed on this server to use it with Multiverse!");
-            return;
-        }
-        SpoutPlayer p = (SpoutPlayer) sender;
-        if (!p.isSpoutCraftEnabled()) {
-            sender.sendMessage(ChatColor.RED + p.getName() + "You need to be using the Spoutcraft client to run this command!");
-            return;
-        }
-        PopupScreen pop = new GenericPopup();
-        GenericButton button = new GenericButton("Fish");
-        // TO-DO maybe use constants for these
-        // BEGIN CHECKSTYLE-SUPPRESSION: MagicNumberCheck
-        button.setX(50);
-        button.setY(50);
-        button.setWidth(100);
-        button.setHeight(40);
-        // END CHECKSTYLE-SUPPRESSION: MagicNumberCheck
-        pop.attachWidget(this.plugin, button);
-        sender.sendMessage(ChatColor.GREEN + "YAY!");
-        p.getMainScreen().attachPopupScreen(pop);
-    }
-}
-*/

src/main/java/com/onarandombox/MultiverseCore/commands/VersionCommand.java

@@ -1,118 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.dumptruckman.minecraft.util.Logging;
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.event.MVVersionEvent;
-import com.onarandombox.MultiverseCore.utils.webpaste.BitlyURLShortener;
-import com.onarandombox.MultiverseCore.utils.webpaste.PasteFailedException;
-import com.onarandombox.MultiverseCore.utils.webpaste.PasteService;
-import com.onarandombox.MultiverseCore.utils.webpaste.PasteServiceFactory;
-import com.onarandombox.MultiverseCore.utils.webpaste.PasteServiceType;
-import com.onarandombox.MultiverseCore.utils.webpaste.URLShortener;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-/**
- * Dumps version info to the console.
- */
-public class VersionCommand extends MultiverseCommand {
-    private static final URLShortener SHORTENER = new BitlyURLShortener();
-
-    public VersionCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Multiverse Version");
-        this.setCommandUsage("/mv version " + ChatColor.GOLD + "-[pb]");
-        this.setArgRange(0, 1);
-        this.addKey("mv version");
-        this.addKey("mvv");
-        this.addKey("mvversion");
-        this.setPermission("multiverse.core.version",
-                "Dumps version info to the console, optionally to pastie.org with -p or pastebin.com with a -b.", PermissionDefault.TRUE);
-    }
-
-    @Override
-    public void runCommand(final CommandSender sender, final List<String> args) {
-        // Check if the command was sent from a Player.
-        if (sender instanceof Player) {
-            sender.sendMessage("Version info dumped to console. Please check your server logs.");
-        }
-
-        StringBuilder buffer = new StringBuilder();
-        buffer.append("[Multiverse-Core] Multiverse-Core Version: ").append(this.plugin.getDescription().getVersion()).append('\n');
-        buffer.append("[Multiverse-Core] Bukkit Version: ").append(this.plugin.getServer().getVersion()).append('\n');
-        buffer.append("[Multiverse-Core] Loaded Worlds: ").append(this.plugin.getMVWorldManager().getMVWorlds()).append('\n');
-        buffer.append("[Multiverse-Core] Multiverse Plugins Loaded: ").append(this.plugin.getPluginCount()).append('\n');
-        buffer.append("[Multiverse-Core] Economy being used: ").append(plugin.getEconomist().getEconomyName()).append('\n');
-        buffer.append("[Multiverse-Core] Permissions Plugin: ").append(this.plugin.getMVPerms().getType()).append('\n');
-        buffer.append("[Multiverse-Core] Dumping Config Values: (version ")
-                .append(this.plugin.getMVConfig().getVersion()).append(")").append('\n');
-        buffer.append("[Multiverse-Core]  messagecooldown: ").append(plugin.getMessaging().getCooldown()).append('\n');
-        buffer.append("[Multiverse-Core]  teleportcooldown: ").append(plugin.getMVConfig().getTeleportCooldown()).append('\n');
-        buffer.append("[Multiverse-Core]  worldnameprefix: ").append(plugin.getMVConfig().getPrefixChat()).append('\n');
-        buffer.append("[Multiverse-Core]  worldnameprefixFormat: ").append(plugin.getMVConfig().getPrefixChatFormat()).append('\n');
-        buffer.append("[Multiverse-Core]  enforceaccess: ").append(plugin.getMVConfig().getEnforceAccess()).append('\n');
-        buffer.append("[Multiverse-Core]  displaypermerrors: ").append(plugin.getMVConfig().getDisplayPermErrors()).append('\n');
-        buffer.append("[Multiverse-Core]  teleportintercept: ").append(plugin.getMVConfig().getTeleportIntercept()).append('\n');
-        buffer.append("[Multiverse-Core]  firstspawnoverride: ").append(plugin.getMVConfig().getFirstSpawnOverride()).append('\n');
-        buffer.append("[Multiverse-Core]  firstspawnworld: ").append(plugin.getMVConfig().getFirstSpawnWorld()).append('\n');
-        buffer.append("[Multiverse-Core]  debug: ").append(plugin.getMVConfig().getGlobalDebug()).append('\n');
-        buffer.append("[Multiverse-Core] Special Code: FRN002").append('\n');
-
-        MVVersionEvent versionEvent = new MVVersionEvent(buffer.toString());
-        this.plugin.getServer().getPluginManager().callEvent(versionEvent);
-
-        // log to console
-        final String data = versionEvent.getVersionInfo();
-        String[] lines = data.split("\n");
-        for (String line : lines) {
-            Logging.info(line);
-        }
-
-        this.plugin.getServer().getScheduler().scheduleAsyncDelayedTask(this.plugin, new Runnable() {
-            @Override
-            public void run() {
-                if (args.size() == 1) {
-                    String pasteUrl;
-                    if (args.get(0).equalsIgnoreCase("-p")) {
-                        pasteUrl = postToService(PasteServiceType.PASTIE, true, data); // private post to pastie
-                    } else if (args.get(0).equalsIgnoreCase("-b")) {
-                        pasteUrl = postToService(PasteServiceType.PASTEBIN, true, data); // private post to pastie
-                    } else {
-                        return;
-                    }
-
-                    sender.sendMessage("Version info dumped here: " + ChatColor.GREEN + pasteUrl);
-                    Logging.info("Version info dumped here: %s", pasteUrl);
-                }
-            }
-        });
-    }
-
-    /**
-     * Send the current contents of this.pasteBinBuffer to a web service.
-     *
-     * @param type      Service type to send to
-     * @param isPrivate Should the paste be marked as private.
-     * @return URL of visible paste
-     */
-    private static String postToService(PasteServiceType type, boolean isPrivate, String pasteData) {
-        PasteService ps = PasteServiceFactory.getService(type, isPrivate);
-        try {
-            return SHORTENER.shorten(ps.postData(ps.encodeData(pasteData), ps.getPostURL()));
-        } catch (PasteFailedException e) {
-            System.out.print(e);
-            return "Error posting to service";
-        }
-    }
-}

src/main/java/com/onarandombox/MultiverseCore/commands/package-info.java

@@ -1,4 +0,0 @@
-/**
- * This package contains all Commands.
- */
-package com.onarandombox.MultiverseCore.commands;

src/main/java/com/onarandombox/MultiverseCore/commandsold/AnchorCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;

src/main/java/com/onarandombox/MultiverseCore/commandsold/CheckCommand.java

@@ -5,12 +5,13 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVDestination;
 import com.onarandombox.MultiverseCore.destination.InvalidDestination;
 import com.onarandombox.MultiverseCore.utils.MVPermissions;
+import com.onarandombox.MultiverseCore.utils.PlayerFinder;
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -37,7 +38,7 @@ public class CheckCommand extends MultiverseCommand {
 
     @Override
     public void runCommand(CommandSender sender, List<String> args) {
-        Player p = this.plugin.getServer().getPlayer(args.get(0));
+        Player p = PlayerFinder.get(args.get(0), sender);
         if (p == null) {
             sender.sendMessage("Could not find player " + ChatColor.GREEN + args.get(0));
             sender.sendMessage("Are they online?");

src/main/java/com/onarandombox/MultiverseCore/commandsold/CloneCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import java.util.List;
 

src/main/java/com/onarandombox/MultiverseCore/commandsold/ConfigCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;

src/main/java/com/onarandombox/MultiverseCore/commandsold/ConfirmCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.command.CommandSender;
@@ -33,7 +33,7 @@ public class ConfirmCommand extends MultiverseCommand {
 
     @Override
     public void runCommand(CommandSender sender, List<String> args) {
-        this.plugin.getCommandHandler().confirmQueuedCommand(sender);
+        this.plugin.getCommandQueueManager().runQueuedCommand(sender);
     }
 
 }

src/main/java/com/onarandombox/MultiverseCore/commandsold/CoordCommand.java

@@ -5,13 +5,12 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
 import com.onarandombox.MultiverseCore.api.MultiverseWorld;
 import org.bukkit.ChatColor;
-import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -62,7 +61,7 @@ public class CoordCommand extends MultiverseCommand {
             df.setMaximumFractionDigits(2);
             p.sendMessage(ChatColor.AQUA + "Coordinates: " + ChatColor.WHITE + plugin.getLocationManipulation().strCoords(p.getLocation()));
             p.sendMessage(ChatColor.AQUA + "Direction: " + ChatColor.WHITE + plugin.getLocationManipulation().getDirection(p.getLocation()));
-            p.sendMessage(ChatColor.AQUA + "Block: " + ChatColor.WHITE + Material.getMaterial(world.getBlockTypeIdAt(p.getLocation())));
+            p.sendMessage(ChatColor.AQUA + "Block: " + ChatColor.WHITE + world.getBlockAt(p.getLocation()).getType());
         } else {
             sender.sendMessage("This command needs to be used from a Player.");
         }

src/main/java/com/onarandombox/MultiverseCore/commandsold/CreateCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
@@ -46,10 +46,15 @@ public class CreateCommand extends MultiverseCommand {
         this.addCommandExample("/mv create " + ChatColor.GOLD + "moonworld" + ChatColor.GREEN + " normal" + ChatColor.DARK_AQUA + " -g BukkitFullOfMoon");
         this.worldManager = this.plugin.getMVWorldManager();
     }
-
+	
+	private String trimWorldName(String userInput) {
+        // Removes relative paths.
+        return userInput.replaceAll("^[./\\\\]+", "");
+    }
+	
     @Override
     public void runCommand(CommandSender sender, List<String> args) {
-        String worldName = args.get(0);
+        String worldName = trimWorldName(args.get(0));
         File worldFile = new File(this.plugin.getServer().getWorldContainer(), worldName);
         String env = args.get(1);
         String seed = CommandHandler.getFlag("-s", args);
@@ -66,7 +71,13 @@ public class CreateCommand extends MultiverseCommand {
                 useSpawnAdjust = false;
             }
         }
-
+		
+		// Make sure the world name doesn't contain the words 'plugins' and '.dat'
+		if(worldName.contains("plugins")||worldName.contains(".dat")){
+			sender.sendMessage(ChatColor.RED + "Multiverse cannot create a world that contains 'plugins' or '.dat'");
+            return;
+		}
+		
         if (this.worldManager.isMVWorld(worldName)) {
             sender.sendMessage(ChatColor.RED + "Multiverse cannot create " + ChatColor.GOLD + ChatColor.UNDERLINE
                     + "another" + ChatColor.RESET + ChatColor.RED + " world named " + worldName);
@@ -117,4 +128,4 @@ public class CreateCommand extends MultiverseCommand {
             Command.broadcastCommandMessage(sender, "FAILED.");
         }
     }
-}
+}

src/main/java/com/onarandombox/MultiverseCore/commandsold/DebugCommand.java

@@ -0,0 +1,66 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commandsold;
+
+import com.dumptruckman.minecraft.util.Logging;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.permissions.PermissionDefault;
+
+import java.util.List;
+
+/**
+ * Enables debug-information.
+ */
+public class DebugCommand extends MultiverseCommand {
+
+    public DebugCommand(MultiverseCore plugin) {
+        super(plugin);
+        this.setName("Turn Debug on/off?");
+        this.setCommandUsage("/mv debug" + ChatColor.GOLD + " [1|2|3|off|silent]");
+        this.setArgRange(0, 1);
+        this.addKey("mv debug");
+        this.addKey("mv d");
+        this.addKey("mvdebug");
+        this.addCommandExample("/mv debug " + ChatColor.GOLD + "2");
+        this.setPermission("multiverse.core.debug", "Spams the console a bunch.", PermissionDefault.OP);
+    }
+
+    @Override
+    public void runCommand(CommandSender sender, List<String> args) {
+        if (args.size() == 1) {
+            if (args.get(0).equalsIgnoreCase("off")) {
+                plugin.getMVConfig().setGlobalDebug(0);
+            } else {
+                try {
+                    int debugLevel = Integer.parseInt(args.get(0));
+                    if (debugLevel > 3 || debugLevel < 0) {
+                        throw new NumberFormatException();
+                    }
+                    plugin.getMVConfig().setGlobalDebug(debugLevel);
+                } catch (NumberFormatException e) {
+                    sender.sendMessage(ChatColor.RED + "Error" + ChatColor.WHITE
+                            + " setting debug level. Please use a number 0-3 " + ChatColor.AQUA + "(3 being many many messages!)");
+                }
+            }
+            plugin.saveMVConfigs();
+        }
+        this.displayDebugMode(sender);
+    }
+
+    private void displayDebugMode(CommandSender sender) {
+        final int debugLevel = plugin.getMVConfig().getGlobalDebug();
+        if (debugLevel == 0) {
+            sender.sendMessage("Multiverse Debug mode is " + ChatColor.RED + "OFF");
+        } else {
+            sender.sendMessage("Multiverse Debug mode is " + ChatColor.GREEN + debugLevel);
+            Logging.fine("Multiverse Debug ENABLED");
+        }
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandsold/DeleteCommand.java

@@ -5,14 +5,15 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.commandtools.queue.QueuedCommand;
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;
 
-import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -33,9 +34,26 @@ public class DeleteCommand extends MultiverseCommand {
 
     @Override
     public void runCommand(CommandSender sender, List<String> args) {
-        Class<?>[] paramTypes = {String.class};
-        List<Object> objectArgs = new ArrayList<Object>(args);
-        this.plugin.getCommandHandler().queueCommand(sender, "mvdelete", "deleteWorld", objectArgs,
-                paramTypes, ChatColor.GREEN + "World Deleted!", ChatColor.RED + "World could NOT be deleted!");
+        String worldName = args.get(0);
+
+        this.plugin.getCommandQueueManager().addToQueue(new QueuedCommand(
+                sender,
+                deleteRunnable(sender, worldName),
+                String.format("Are you sure you want to delete world '%s'? You cannot undo this action.", worldName)
+        ));
+    }
+
+    private Runnable deleteRunnable(@NotNull CommandSender sender,
+                                    @NotNull String worldName) {
+
+        return () -> {
+            sender.sendMessage(String.format("Deleting world '%s'...", worldName));
+            if (this.plugin.getMVWorldManager().deleteWorld(worldName)) {
+                sender.sendMessage(String.format("%sWorld %s was deleted!", ChatColor.GREEN, worldName));
+                return;
+            }
+            sender.sendMessage(String.format("%sThere was an issue deleting '%s'! Please check console for errors.",
+                    ChatColor.RED, worldName));
+        };
     }
 }

src/main/java/com/onarandombox/MultiverseCore/commandsold/EnvironmentCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;

src/main/java/com/onarandombox/MultiverseCore/commandsold/GameruleCommand.java

@@ -5,11 +5,12 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
+import org.bukkit.GameRule;
 import org.bukkit.World;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -55,21 +56,61 @@ public class GameruleCommand extends MultiverseCommand {
             return;
         }
 
-        final String gameRule = args.get(0);
+        final GameRule gameRule = GameRule.getByName(args.get(0));
         final String value = args.get(1);
         final World world;
         if (args.size() == 2) {
             world = p.getWorld();
         } else {
             world = Bukkit.getWorld(args.get(2));
+            if (world == null) {
+                sender.sendMessage(ChatColor.RED + "Failure!" + ChatColor.WHITE + " World " + ChatColor.AQUA + args.get(2)
+                        + ChatColor.WHITE + " does not exist.");
+                return;
+            }
         }
 
-        if (world.setGameRuleValue(gameRule, value)) {
-            sender.sendMessage(ChatColor.GREEN + "Success!" + ChatColor.WHITE + " Gamerule " + ChatColor.AQUA + gameRule
-                    + ChatColor.WHITE + " was set to " + ChatColor.GREEN + value);
+        if (gameRule == null) {
+            sender.sendMessage(ChatColor.RED + "Failure! " + ChatColor.AQUA + args.get(0) + ChatColor.WHITE
+                    + " is not a valid gamerule.");
         } else {
-            sender.sendMessage(ChatColor.RED + "Failure!" + ChatColor.WHITE + " Gamerule " + ChatColor.AQUA + gameRule
-                    + ChatColor.WHITE + " cannot be set to " + ChatColor.RED + value);
+            if (gameRule.getType() == Boolean.class) {
+                boolean booleanValue;
+                if (value.equalsIgnoreCase("true")) {
+                    booleanValue = true;
+                } else if (value.equalsIgnoreCase("false")) {
+                    booleanValue = false;
+                } else {
+                    sender.sendMessage(getErrorMessage(gameRule.getName(), value) + "it can only be set to true or false.");
+                    return;
+                }
+
+                if (!world.setGameRule(gameRule, booleanValue)) {
+                    sender.sendMessage(getErrorMessage(gameRule.getName(), value) + "something went wrong.");
+                    return;
+                }
+            } else if (gameRule.getType() == Integer.class) {
+                try {
+                    if (!world.setGameRule(gameRule, Integer.parseInt(value))) {
+                        throw new NumberFormatException();
+                    }
+                } catch (NumberFormatException e) {
+                    sender.sendMessage(getErrorMessage(gameRule.getName(), value) + "it can only be set to a positive integer.");
+                    return;
+                }
+            } else {
+                sender.sendMessage(ChatColor.RED + "Failure!" + ChatColor.WHITE + " Gamerule " + ChatColor.AQUA + gameRule.getName()
+                        + ChatColor.WHITE + " isn't supported yet, please let us know about it.");
+                return;
+            }
+
+            sender.sendMessage(ChatColor.GREEN + "Success!" + ChatColor.WHITE + " Gamerule " + ChatColor.AQUA + gameRule.getName()
+                    + ChatColor.WHITE + " was set to " + ChatColor.GREEN + value + ChatColor.WHITE + ".");
         }
     }
+
+    private String getErrorMessage(String gameRule, String value) {
+        return ChatColor.RED + "Failure!" + ChatColor.WHITE + " Gamerule " + ChatColor.AQUA + gameRule
+                + ChatColor.WHITE + " could not be set to " + ChatColor.RED + value + ChatColor.WHITE + ", ";
+    }
 }

src/main/java/com/onarandombox/MultiverseCore/commandsold/GamerulesCommand.java

@@ -5,17 +5,23 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.display.ColorAlternator;
+import com.onarandombox.MultiverseCore.display.ContentDisplay;
+import com.onarandombox.MultiverseCore.display.settings.MapDisplaySettings;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
+import org.bukkit.GameRule;
 import org.bukkit.World;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.permissions.PermissionDefault;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * Allows management of Anchor Destinations.
@@ -60,17 +66,30 @@ public class GamerulesCommand extends MultiverseCommand {
             world = p.getWorld();
         } else {
             world = Bukkit.getWorld(args.get(0));
+            if (world == null) {
+                sender.sendMessage(ChatColor.RED + "Failure!" + ChatColor.WHITE + " World " + ChatColor.AQUA + args.get(0)
+                        + ChatColor.WHITE + " does not exist.");
+                return;
+            }
         }
 
-        final StringBuilder gameRules = new StringBuilder();
-        for (final String gameRule : world.getGameRules()) {
-            if (gameRules.length() != 0) {
-                gameRules.append(ChatColor.WHITE).append(", ");
+        ContentDisplay.forContent(getGameRuleMap(world))
+                .header("=== Gamerules for %s%s%s ===", ChatColor.AQUA, world.getName(), ChatColor.WHITE)
+                .colorTool(ColorAlternator.with(ChatColor.GREEN, ChatColor.GOLD))
+                .setting(MapDisplaySettings.OPERATOR, ": ")
+                .show(sender);
+    }
+
+    private Map<String, Object> getGameRuleMap(World world) {
+        Map<String, Object> gameRuleMap = new HashMap<>();
+        for (GameRule<?> rule : GameRule.values()) {
+            Object value = world.getGameRuleValue(rule);
+            if (value == null) {
+                gameRuleMap.put(rule.getName(), "null");
+                continue;
             }
-            gameRules.append(ChatColor.AQUA).append(gameRule).append(ChatColor.WHITE).append(": ");
-            gameRules.append(ChatColor.GREEN).append(world.getGameRuleValue(gameRule));
+            gameRuleMap.put(rule.getName(), value);
         }
-        sender.sendMessage("=== Gamerules for " + ChatColor.AQUA + world.getName() + ChatColor.WHITE + " ===");
-        sender.sendMessage(gameRules.toString());
+        return gameRuleMap;
     }
 }

src/main/java/com/onarandombox/MultiverseCore/commandsold/GeneratorCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.dumptruckman.minecraft.util.Logging;
 import com.onarandombox.MultiverseCore.MultiverseCore;

src/main/java/com/onarandombox/MultiverseCore/commandsold/HelpCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.pneumaticraft.commandhandler.Command;
@@ -40,24 +40,16 @@ public class HelpCommand extends PaginatedCoreCommand<Command> {
 
     @Override
     protected List<Command> getFilteredItems(List<Command> availableItems, String filter) {
+        String expression = "(?i).*" + cleanFilter(filter) + ".*";
         List<Command> filtered = new ArrayList<Command>();
 
         for (Command c : availableItems) {
-            if (stitchThisString(c.getKeyStrings()).matches("(?i).*" + filter + ".*")) {
+            if (stitchThisString(c.getKeyStrings()).matches(expression)
+                    || c.getCommandName().matches(expression)
+                    || c.getCommandDesc().matches(expression)
+                    || c.getCommandUsage().matches(expression)
+                    || c.getCommandExamples().stream().anyMatch(eg -> eg.matches(expression))) {
                 filtered.add(c);
-            } else if (c.getCommandName().matches("(?i).*" + filter + ".*")) {
-                filtered.add(c);
-            } else if (c.getCommandDesc().matches("(?i).*" + filter + ".*")) {
-                filtered.add(c);
-            } else if (c.getCommandUsage().matches("(?i).*" + filter + ".*")) {
-                filtered.add(c);
-            } else {
-                for (String example : c.getCommandExamples()) {
-                    if (example.matches("(?i).*" + filter + ".*")) {
-                        filtered.add(c);
-                        break;
-                    }
-                }
             }
         }
         return filtered;

src/main/java/com/onarandombox/MultiverseCore/commandsold/ImportCommand.java

@@ -5,11 +5,11 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
+import com.onarandombox.MultiverseCore.utils.WorldNameChecker;
 import com.pneumaticraft.commandhandler.CommandHandler;
 import org.bukkit.ChatColor;
 import org.bukkit.World.Environment;
@@ -18,8 +18,6 @@ import org.bukkit.command.CommandSender;
 import org.bukkit.permissions.PermissionDefault;
 
 import java.io.File;
-import java.io.FilenameFilter;
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 
@@ -45,63 +43,30 @@ public class ImportCommand extends MultiverseCommand {
         this.worldManager = this.plugin.getMVWorldManager();
     }
 
-    /**
-     * A very basic check to see if a folder has a level.dat file.
-     * If it does, we can safely assume it's a world folder.
-     *
-     * @param worldFolder The File that may be a world.
-     * @return True if it looks like a world, false if not.
-     */
-    private static boolean checkIfIsWorld(File worldFolder) {
-        if (worldFolder.isDirectory()) {
-            File[] files = worldFolder.listFiles(new FilenameFilter() {
-                @Override
-                public boolean accept(File file, String name) {
-                    return name.equalsIgnoreCase("level.dat");
-                }
-            });
-            if (files != null && files.length > 0) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private String getPotentialWorlds() {
-        File worldFolder = this.plugin.getServer().getWorldContainer();
-        if (worldFolder == null) {
-            return "";
-        }
-        File[] files = worldFolder.listFiles();
-        String worldList = "";
-        Collection<MultiverseWorld> worlds = this.worldManager.getMVWorlds();
-        List<String> worldStrings = new ArrayList<String>();
-        for (MultiverseWorld world : worlds) {
-            worldStrings.add(world.getName());
-        }
-        for (String world : this.worldManager.getUnloadedWorlds()) {
-            worldStrings.add(world);
-        }
+    private String getPotentialWorldStrings() {
+        final Collection<String> potentialWorlds = this.worldManager.getPotentialWorlds();
+        StringBuilder worldList = new StringBuilder();
         ChatColor currColor = ChatColor.WHITE;
-        for (File file : files) {
-            if (file.isDirectory() && checkIfIsWorld(file) && !worldStrings.contains(file.getName())) {
-                worldList += currColor + file.getName() + " ";
-                if (currColor == ChatColor.WHITE) {
-                    currColor = ChatColor.YELLOW;
-                } else {
-                    currColor = ChatColor.WHITE;
-                }
-            }
+
+        for (String world : potentialWorlds) {
+            worldList.append(currColor).append(world).append(' ');
+            currColor = currColor == ChatColor.WHITE ? ChatColor.YELLOW : ChatColor.WHITE;
         }
-        return worldList;
+
+        return worldList.toString();
+    }
+    
+    private String trimWorldName(String userInput) {
+        // Removes relative paths.
+        return userInput.replaceAll("^[./\\\\]+", "");
     }
 
     @Override
     public void runCommand(CommandSender sender, List<String> args) {
-        String worldName = args.get(0);
+        String worldName = trimWorldName(args.get(0));
 
         if (worldName.toLowerCase().equals("--list") || worldName.toLowerCase().equals("-l")) {
-            String worldList = this.getPotentialWorlds();
+            String worldList = this.getPotentialWorldStrings();
             if (worldList.length() > 2) {
                 sender.sendMessage(ChatColor.AQUA + "====[ These look like worlds ]====");
                 sender.sendMessage(worldList);
@@ -112,10 +77,16 @@ public class ImportCommand extends MultiverseCommand {
         }
         // Since we made an exception for the list, we have to make sure they have at least 2 params:
         // Note the exception is --list, which is covered above.
-        if (args.size() == 1) {
+        if (args.size() == 1 || worldName.length() < 1) {
             this.showHelp(sender);
             return;
         }
+		
+		// Make sure the world name doesn't contain the words 'plugins' and '.dat'
+		if(worldName.contains("plugins")||worldName.contains(".dat")){
+			sender.sendMessage(ChatColor.RED + "Multiverse cannot create a world that contains 'plugins' or '.dat'");
+            return;
+		}
 
         // Make sure we don't already know about this world.
         if (this.worldManager.isMVWorld(worldName)) {
@@ -142,21 +113,25 @@ public class ImportCommand extends MultiverseCommand {
             return;
         }
 
-        if (worldFile.exists() && env != null) {
-            Command.broadcastCommandMessage(sender, String.format("Starting import of world '%s'...", worldName));
-            if (this.worldManager.addWorld(worldName, environment, null, null, null, generator, useSpawnAdjust))
-                Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Complete!");
-            else
-                Command.broadcastCommandMessage(sender, ChatColor.RED + "Failed!");
+        if (!worldFile.exists()) {
+            sender.sendMessage(ChatColor.RED + "FAILED.");
+            String worldList = this.getPotentialWorldStrings();
+            sender.sendMessage("That world folder does not exist. These look like worlds to me:");
+            sender.sendMessage(worldList);
+        } else if (!WorldNameChecker.isValidWorldFolder(worldFile)) {
+            sender.sendMessage(ChatColor.RED + "FAILED.");
+            sender.sendMessage(String.format("'%s' does not appear to be a world. It is lacking a .dat file.",
+                                             worldName));
         } else if (env == null) {
             sender.sendMessage(ChatColor.RED + "FAILED.");
             sender.sendMessage("That world environment did not exist.");
             sender.sendMessage("For a list of available world types, type: " + ChatColor.AQUA + "/mvenv");
         } else {
-            sender.sendMessage(ChatColor.RED + "FAILED.");
-            String worldList = this.getPotentialWorlds();
-            sender.sendMessage("That world folder does not exist. These look like worlds to me:");
-            sender.sendMessage(worldList);
+            Command.broadcastCommandMessage(sender, String.format("Starting import of world '%s'...", worldName));
+            if (this.worldManager.addWorld(worldName, environment, null, null, null, generator, useSpawnAdjust))
+                Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Complete!");
+            else
+                Command.broadcastCommandMessage(sender, ChatColor.RED + "Failed!");
         }
     }
-}
+}

src/main/java/com/onarandombox/MultiverseCore/commandsold/InfoCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.FancyText;
@@ -115,6 +115,7 @@ public class InfoCommand extends MultiverseCommand {
         FancyColorScheme colors = new FancyColorScheme(ChatColor.AQUA, ChatColor.AQUA, ChatColor.GOLD, ChatColor.WHITE);
         message.add(new FancyHeader("General Info", colors));
         message.add(new FancyMessage("World Name: ", world.getName(), colors));
+        message.add(new FancyMessage("World UID: ", world.getCBWorld().getUID().toString(), colors));
         message.add(new FancyMessage("World Alias: ", world.getColoredWorldString(), colors));
         message.add(new FancyMessage("Game Mode: ", world.getGameMode().toString(), colors));
         message.add(new FancyMessage("Difficulty: ", world.getDifficulty().toString(), colors));
@@ -151,6 +152,7 @@ public class InfoCommand extends MultiverseCommand {
         message = new ArrayList<FancyText>();
         message.add(new FancyHeader("More World Settings", colors));
         message.add(new FancyMessage("World Type: ", world.getWorldType().toString(), colors));
+        message.add(new FancyMessage("Generator: ", world.getGenerator(), colors));
         message.add(new FancyMessage("Structures: ", world.getCBWorld().canGenerateStructures() + "", colors));
         message.add(new FancyMessage("Weather: ", world.isWeatherEnabled() + "", colors));
         message.add(new FancyMessage("Players will get hungry: ", world.getHunger() + "", colors));
@@ -181,8 +183,8 @@ public class InfoCommand extends MultiverseCommand {
         message.add(new FancyHeader("Animal Settings", colors));
         message.add(new FancyMessage("Multiverse Setting: ", world.canAnimalsSpawn() + "", colors));
         message.add(new FancyMessage("Bukkit Setting: ", world.getCBWorld().getAllowAnimals() + "", colors));
-        if (world.getMonsterList().size() > 0) {
-            if (world.canMonstersSpawn()) {
+        if (world.getAnimalList().size() > 0) {
+            if (world.canAnimalsSpawn()) {
                 message.add(new FancyMessage("Animals that" + ChatColor.RED + " CAN NOT "
                         + ChatColor.GREEN + "spawn: ", toCommaSeperated(world.getAnimalList()), colors));
             } else {

src/main/java/com/onarandombox/MultiverseCore/commandsold/ListCommand.java

@@ -0,0 +1,119 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commandsold;
+
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.MultiverseWorld;
+import com.onarandombox.MultiverseCore.display.ColorAlternator;
+import com.onarandombox.MultiverseCore.display.ContentDisplay;
+import com.onarandombox.MultiverseCore.display.ContentFilter;
+import com.onarandombox.MultiverseCore.display.DisplayHandlers;
+import com.onarandombox.MultiverseCore.display.settings.PagedDisplaySettings;
+import org.bukkit.ChatColor;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Displays a listing of all worlds that a player can enter.
+ */
+public class ListCommand extends MultiverseCommand {
+
+    public ListCommand(MultiverseCore plugin) {
+        super(plugin);
+        this.setName("World Listing");
+        this.setCommandUsage("/mv list [filter] [page]");
+        this.setArgRange(0, 2);
+        this.addKey("mvlist");
+        this.addKey("mvl");
+        this.addKey("mv list");
+        this.setPermission("multiverse.core.list.worlds", "Displays a listing of all worlds that you can enter.", PermissionDefault.OP);
+    }
+
+    @Override
+    public void runCommand(CommandSender sender, List<String> args) {
+        ContentFilter filter = ContentFilter.DEFAULT;
+        int page = 1;
+
+        // Either page or filter.
+        if (args.size() == 1) {
+            try {
+                page = Integer.parseInt(args.get(0));
+            } catch (NumberFormatException ignore) {
+                filter = new ContentFilter(args.get(0));
+            }
+        }
+
+        // Filter then page.
+        if (args.size() == 2) {
+            filter = new ContentFilter(args.get(0));
+            try {
+                page = Integer.parseInt(args.get(1));
+            } catch (NumberFormatException ignore) {
+                sender.sendMessage(ChatColor.RED + args.get(1) + " is not valid number!");
+            }
+        }
+
+        ContentDisplay.forContent(getListContents(sender))
+                .header("%s====[ Multiverse World List ]====", ChatColor.GOLD)
+                .displayHandler(DisplayHandlers.PAGE_LIST)
+                .colorTool(ColorAlternator.with(ChatColor.AQUA, ChatColor.GOLD))
+                .filter(filter)
+                .setting(PagedDisplaySettings.SHOW_PAGE, page)
+                .show(sender);
+    }
+
+    private Collection<String> getListContents(@NotNull CommandSender sender) {
+        Player player = (sender instanceof Player) ? (Player) sender : null;
+
+        List<String> worldList = this.plugin.getMVWorldManager().getMVWorlds().stream()
+                .filter(world -> player == null || plugin.getMVPerms().canEnterWorld(player, world))
+                .filter(world -> canSeeWorld(player, world))
+                .map(world -> hiddenText(world) + world.getColoredWorldString() + " - " + parseColouredEnvironment(world.getEnvironment()))
+                .collect(Collectors.toList());
+
+        this.plugin.getMVWorldManager().getUnloadedWorlds().stream()
+                .filter(world -> plugin.getMVPerms().hasPermission(sender, "multiverse.access." + world, true))
+                .map(world -> ChatColor.GRAY + world + " - UNLOADED")
+                .forEach(worldList::add);
+        
+        return worldList;
+    }
+
+    private boolean canSeeWorld(Player player, MultiverseWorld world) {
+        return !world.isHidden()
+                || player == null
+                || this.plugin.getMVPerms().hasPermission(player, "multiverse.core.modify", true);
+    }
+
+    private String hiddenText(MultiverseWorld world) {
+        return (world.isHidden()) ? String.format("%s[H] ", ChatColor.GRAY) : "";
+    }
+
+    private String parseColouredEnvironment(World.Environment env) {
+        ChatColor color = ChatColor.GOLD;
+        switch (env) {
+            case NETHER:
+                color = ChatColor.RED;
+                break;
+            case NORMAL:
+                color = ChatColor.GREEN;
+                break;
+            case THE_END:
+                color = ChatColor.AQUA;
+                break;
+        }
+        return color + env.toString();
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandsold/LoadCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;

src/main/java/com/onarandombox/MultiverseCore/commandsold/ModifyAddCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
@@ -77,7 +77,7 @@ public class ModifyAddCommand extends MultiverseCommand {
 
         if (!ModifyCommand.validateAction(Action.Add, property)) {
             sender.sendMessage("Sorry, you can't ADD to " + property);
-            sender.sendMessage("Please visit our Github Wiki for more information: http://goo.gl/4W8cY");
+            sender.sendMessage("Please visit our Github Wiki for more information: https://goo.gl/OMGwzx");
             return;
         }
 

src/main/java/com/onarandombox/MultiverseCore/commandsold/ModifyClearCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
@@ -72,7 +72,7 @@ public class ModifyClearCommand extends MultiverseCommand {
 
         if (!ModifyCommand.validateAction(Action.Clear, property)) {
             sender.sendMessage("Sorry, you can't use CLEAR with " + property);
-            sender.sendMessage("Please visit our Github Wiki for more information: http://goo.gl/cgB2B");
+            sender.sendMessage("Please visit our Github Wiki for more information: https://goo.gl/q1h01S");
             return;
         }
         // TODO fix this

src/main/java/com/onarandombox/MultiverseCore/commandsold/ModifyCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.enums.Action;

src/main/java/com/onarandombox/MultiverseCore/commandsold/ModifyRemoveCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
@@ -78,7 +78,7 @@ public class ModifyRemoveCommand extends MultiverseCommand {
 
         if (!ModifyCommand.validateAction(Action.Remove, property)) {
             sender.sendMessage("Sorry, you can't REMOVE anything from" + property);
-            sender.sendMessage("Please visit our Github Wiki for more information: http://goo.gl/4W8cY");
+            sender.sendMessage("Please visit our Github Wiki for more information: https://goo.gl/OMGwzx");
             return;
         }
         // TODO fix this

src/main/java/com/onarandombox/MultiverseCore/commandsold/ModifySetCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;

src/main/java/com/onarandombox/MultiverseCore/commandsold/MultiverseCommand.java

@@ -0,0 +1,40 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commandsold;
+
+import java.util.List;
+
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.MultiverseMessaging;
+import com.pneumaticraft.commandhandler.Command;
+import org.bukkit.command.CommandSender;
+
+/**
+ * A generic Multiverse-command.
+ */
+public abstract class MultiverseCommand extends Command {
+
+    /**
+     * The reference to the core.
+     */
+    protected MultiverseCore plugin;
+    /**
+     * The reference to {@link MultiverseMessaging}.
+     */
+    protected MultiverseMessaging messaging;
+
+    public MultiverseCommand(MultiverseCore plugin) {
+        super(plugin);
+        this.plugin = plugin;
+        this.messaging = this.plugin.getMessaging();
+    }
+
+    @Override
+    public abstract void runCommand(CommandSender sender, List<String> args);
+
+}

src/main/java/com/onarandombox/MultiverseCore/commandsold/PaginatedCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.pneumaticraft.commandhandler.Command;
 import org.bukkit.command.CommandSender;
@@ -13,12 +13,14 @@ import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
 
 import java.util.List;
+import java.util.regex.Pattern;
 
 /**
  * A generic paginated command.
  * @param <T> The type of items on the page.
  */
 public abstract class PaginatedCommand<T> extends Command {
+    private final Pattern REGEX_SPECIAL_CHARS = Pattern.compile("[.+*?\\[^\\]$(){}=!<>|:-\\\\]");
     private static final int DEFAULT_ITEMS_PER_PAGE = 9;
     /**
      * The number of items per page.
@@ -40,12 +42,23 @@ public abstract class PaginatedCommand<T> extends Command {
 
     /**
      * Gets filtered items.
+     *
      * @param availableItems All available items.
      * @param filter The filter-{@link String}.
      * @return A list of items that match the filter.
      */
     protected abstract List<T> getFilteredItems(List<T> availableItems, String filter);
 
+    /**
+     * Escape regex special characters from filter
+     *
+     * @param filter The filter-{@link String}.
+     * @return String with regex characters escaped
+     */
+    protected String cleanFilter(String filter) {
+        return REGEX_SPECIAL_CHARS.matcher(filter).replaceAll("\\\\$0");
+    }
+
     /**
      * Constructs a single string from a list of strings.
      *

src/main/java/com/onarandombox/MultiverseCore/commandsold/PaginatedCoreCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 

src/main/java/com/onarandombox/MultiverseCore/commandsold/PurgeCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;

src/main/java/com/onarandombox/MultiverseCore/commandsold/RegenCommand.java

@@ -5,14 +5,16 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.commandtools.queue.QueuedCommand;
+import com.pneumaticraft.commandhandler.CommandHandler;
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;
 
-import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -23,8 +25,8 @@ public class RegenCommand extends MultiverseCommand {
     public RegenCommand(MultiverseCore plugin) {
         super(plugin);
         this.setName("Regenerates a World");
-        this.setCommandUsage("/mv regen" + ChatColor.GREEN + " {WORLD}" + ChatColor.GOLD + " [-s [SEED]]");
-        this.setArgRange(1, 3);
+        this.setCommandUsage("/mv regen" + ChatColor.GREEN + " {WORLD}" + ChatColor.GOLD + " [-s [SEED]] [--keep-gamerules]");
+        this.setArgRange(1, 4);
         this.addKey("mvregen");
         this.addKey("mv regen");
         this.addCommandExample("You can use the -s with no args to get a new seed:");
@@ -37,17 +39,31 @@ public class RegenCommand extends MultiverseCommand {
 
     @Override
     public void runCommand(CommandSender sender, List<String> args) {
-        Boolean useseed = (!(args.size() == 1));
-        Boolean randomseed = (args.size() == 2 && args.get(1).equalsIgnoreCase("-s"));
+        String worldName = args.get(0);
+        boolean useseed = (!(args.size() == 1));
+        boolean randomseed = (args.size() == 2 && args.get(1).equalsIgnoreCase("-s"));
         String seed = (args.size() == 3) ? args.get(2) : "";
+        boolean keepGamerules = CommandHandler.hasFlag("--keep-gamerules", args);
+        this.plugin.getCommandQueueManager().addToQueue(new QueuedCommand(
+                sender,
+                doWorldRegen(sender, worldName, useseed, randomseed, seed, keepGamerules),
+                String.format("Are you sure you want to regen '%s'? You cannot undo this action.", worldName)
+        ));
+    }
 
-        Class<?>[] paramTypes = {String.class, Boolean.class, Boolean.class, String.class};
-        List<Object> objectArgs = new ArrayList<Object>();
-        objectArgs.add(args.get(0));
-        objectArgs.add(useseed);
-        objectArgs.add(randomseed);
-        objectArgs.add(seed);
-        this.plugin.getCommandHandler().queueCommand(sender, "mvregen", "regenWorld", objectArgs,
-                paramTypes, ChatColor.GREEN + "World Regenerated!", ChatColor.RED + "World could NOT be regenerated!");
+    private Runnable doWorldRegen(@NotNull CommandSender sender,
+                                  @NotNull String worldName,
+                                  boolean useSeed,
+                                  boolean randomSeed,
+                                  @NotNull String seed,
+                                  boolean keepGamerules) {
+
+        return () -> {
+            if (this.plugin.getMVWorldManager().regenWorld(worldName, useSeed, randomSeed, seed, keepGamerules)) {
+                sender.sendMessage(ChatColor.GREEN + "World Regenerated!");
+                return;
+            }
+            sender.sendMessage(ChatColor.RED + "World could NOT be regenerated!");
+        };
     }
 }

src/main/java/com/onarandombox/MultiverseCore/commandsold/ReloadCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.event.MVConfigReloadEvent;
@@ -27,6 +27,7 @@ public class ReloadCommand extends MultiverseCommand {
         this.setCommandUsage("/mv reload");
         this.setArgRange(0, 0);
         this.addKey("mvreload");
+        this.addKey("mvr");
         this.addKey("mv reload");
         this.addCommandExample("/mv reload");
         this.setPermission("multiverse.core.reload", "Reloads worlds.yml and config.yml.", PermissionDefault.OP);

src/main/java/com/onarandombox/MultiverseCore/commandsold/RemoveCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;

src/main/java/com/onarandombox/MultiverseCore/commandsold/ScriptCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;
@@ -35,6 +35,10 @@ public class ScriptCommand extends MultiverseCommand {
 
     @Override
     public void runCommand(CommandSender sender, List<String> args) {
+        if (plugin.getScriptAPI() == null) {
+            sender.sendMessage("Buscript failed to load while the server was starting. Scripts cannot be run.");
+            return;
+        }
         File file = new File(plugin.getScriptAPI().getScriptFolder(), args.get(0));
         if (!file.exists()) {
             sender.sendMessage("That script file does not exist in the Multiverse-Core scripts directory!");

src/main/java/com/onarandombox/MultiverseCore/commandsold/SetSpawnCommand.java

@@ -0,0 +1,148 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commandsold;
+
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.BlockSafety;
+import com.onarandombox.MultiverseCore.api.MultiverseWorld;
+import org.bukkit.ChatColor;
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.permissions.PermissionDefault;
+
+import java.util.List;
+import org.bukkit.Bukkit;
+
+/**
+ * Sets the spawn for a world.
+ */
+public class SetSpawnCommand extends MultiverseCommand {
+    public SetSpawnCommand(MultiverseCore plugin) {
+        super(plugin);
+        this.setName("Set World Spawn");
+        this.setCommandUsage("/mv setspawn");
+        this.setArgRange(0, 6);
+        this.addKey("mvsetspawn");
+        this.addKey("mvsets");
+        this.addKey("mvss");
+        this.addKey("mv set spawn");
+        this.addKey("mv setspawn");
+        this.addKey("mvset spawn");
+        this.addCommandExample("/mv set spawn");
+        this.setPermission("multiverse.core.spawn.set", "Sets the spawn for the current world.", PermissionDefault.OP);
+    }
+
+    /**
+     * Dispatches the user's command depending on the number of parameters
+     * @param sender The player who executes the command, may be console as well.
+     * @param args Command line parameters
+     */
+    @Override
+    public void runCommand(CommandSender sender, List<String> args) {
+        if (args.isEmpty()) {
+            setWorldSpawn(sender);
+        } else if (args.size() == 4) {
+            setWorldSpawn(sender, args.get(0), args.get(1), args.get(2), args.get(3));
+        } else if (args.size() == 6) {
+            setWorldSpawn(sender, args.get(0), args.get(1), args.get(2), args.get(3), args.get(4), args.get(5));
+        } else {
+            sender.sendMessage("Use no arguments for your current location, or world/x/y/z, or world/x/y/z/yaw/pitch!");
+        }
+    }
+
+    /**
+     * Set the world spawn when no parameters are given
+     * @param sender The {@link CommandSender} who executes the command. 
+     *               Everything not a {@link Player}, e.g. console, gets rejected, as we can't get coordinates from there.
+     */
+    protected void setWorldSpawn(CommandSender sender) {
+        if (sender instanceof Player) {
+            Player p = (Player) sender;
+            Location l = p.getLocation();
+            World w = p.getWorld();
+            setWorldSpawn(sender, w, l);
+        } else {
+            sender.sendMessage("You need to give coordinates to use this command from the console!");
+        }
+    }
+    
+    /**
+     * Set the world spawn when 4 parameters are given
+     * @param sender The {@link CommandSender} who executes the command
+     * @param world The world to set the spawn in
+     * @param x X-coordinate to set the spawn to (as a {@link String} as it's from the command line, gets parsed into a double)
+     * @param y Y-coordinate to set the spawn to (as a {@link String} as it's from the command line, gets parsed into a double)
+     * @param z Z-coordinate to set the spawn to (as a {@link String} as it's from the command line, gets parsed into a double)
+     */
+    protected void setWorldSpawn(CommandSender sender, String world, String x, String y, String z) {
+        setWorldSpawn(sender, world, x, y, z, "0", "0");
+    }
+
+    /**
+     * Set the world spawn when 6 parameters are given
+     * @param sender The {@link CommandSender} who executes the command
+     * @param world The world to set the spawn in
+     * @param x X-coordinate to set the spawn to (as a {@link String} as it's from the command line, gets parsed into a double)
+     * @param y Y-coordinate to set the spawn to (as a {@link String} as it's from the command line, gets parsed into a double)
+     * @param z Z-coordinate to set the spawn to (as a {@link String} as it's from the command line, gets parsed into a double)
+     * @param yaw Yaw a newly spawned player should look at (as a {@link String} as it's from the command line, gets parsed into a float)
+     * @param pitch Pitch a newly spawned player should look at (as a {@link String} as it's from the command line, gets parsed into a float)
+     */
+    protected void setWorldSpawn(CommandSender sender, String world, String x, String y, String z, String yaw, String pitch) {
+        double dx, dy, dz;
+        float fpitch, fyaw;
+        World bukkitWorld = Bukkit.getWorld(world);
+        if (bukkitWorld == null) {
+            sender.sendMessage("World " + world + " is unknown!");
+            return;
+        }
+        try {
+            dx = Double.parseDouble(x);
+            dy = Double.parseDouble(y);
+            dz = Double.parseDouble(z);
+            fpitch = Float.parseFloat(pitch);
+            fyaw = Float.parseFloat(yaw);
+        } catch (NumberFormatException ex) {
+            sender.sendMessage("All coordinates must be numeric");
+            return;
+        }
+        Location l = new Location(bukkitWorld, dx, dy, dz, fyaw, fpitch);
+        setWorldSpawn(sender, bukkitWorld, l);
+    }
+
+    /**
+     * Does the actual spawn-setting-work.
+     *
+     * @param sender The {@link CommandSender} that's setting the spawn.
+     * @param w The {@link World} to set the spawn in
+     * @param l The {@link Location} to set the spawn to
+     */
+    private void setWorldSpawn(CommandSender sender, World w, Location l) {
+        MultiverseWorld foundWorld = this.plugin.getMVWorldManager().getMVWorld(w.getName());
+        if (foundWorld != null) {
+            foundWorld.setSpawnLocation(l);
+            BlockSafety bs = this.plugin.getBlockSafety();
+            if (!bs.playerCanSpawnHereSafely(l) && foundWorld.getAdjustSpawn()) {
+                sender.sendMessage("It looks like that location would normally be unsafe. But I trust you.");
+                sender.sendMessage("I'm turning off the Safe-T-Teleporter for spawns to this world.");
+                sender.sendMessage("If you want this turned back on just do:");
+                sender.sendMessage(ChatColor.AQUA + "/mvm set adjustspawn true " + foundWorld.getAlias());
+                foundWorld.setAdjustSpawn(false);
+            }
+            sender.sendMessage("Spawn was set to: " + plugin.getLocationManipulation().strCoords(l));
+            if (!plugin.saveWorldConfig()) {
+                sender.sendMessage(ChatColor.RED + "There was an issue saving worlds.yml!  Your changes will only be temporary!");
+            }
+        } else {
+            w.setSpawnLocation(l.getBlockX(), l.getBlockY(), l.getBlockZ());
+            sender.sendMessage("Multiverse does not know about this world, only X,Y and Z set. Please import it to set the spawn fully (Pitch/Yaws).");
+        }
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandsold/SilentCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;

src/main/java/com/onarandombox/MultiverseCore/commandsold/SleepCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.command.CommandSender;

src/main/java/com/onarandombox/MultiverseCore/commandsold/SpawnCommand.java

@@ -5,10 +5,11 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MultiverseWorld;
+import com.onarandombox.MultiverseCore.utils.PlayerFinder;
 import org.bukkit.ChatColor;
 import org.bukkit.Location;
 import org.bukkit.command.CommandSender;
@@ -50,7 +51,7 @@ public class SpawnCommand extends MultiverseCommand {
                 sender.sendMessage("You don't have permission to teleport another player to spawn. (multiverse.core.spawn.other)");
                 return;
             }
-            Player target = this.plugin.getServer().getPlayer(args.get(0));
+            Player target = PlayerFinder.get(args.get(0), sender);
             if (target != null) {
                 target.sendMessage("Teleporting to this world's spawn...");
                 spawnAccurately(target);

src/main/java/com/onarandombox/MultiverseCore/commandsold/TeleportCommand.java

@@ -5,11 +5,13 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
+import com.dumptruckman.minecraft.util.Logging;
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.Teleporter;
 import com.onarandombox.MultiverseCore.api.MVDestination;
+import com.onarandombox.MultiverseCore.commandtools.queue.QueuedCommand;
 import com.onarandombox.MultiverseCore.destination.CustomTeleporterDestination;
 import com.onarandombox.MultiverseCore.destination.DestinationFactory;
 import com.onarandombox.MultiverseCore.destination.InvalidDestination;
@@ -17,6 +19,7 @@ import com.onarandombox.MultiverseCore.destination.WorldDestination;
 import com.onarandombox.MultiverseCore.enums.TeleportResult;
 import com.onarandombox.MultiverseCore.event.MVTeleportEvent;
 import com.onarandombox.MultiverseCore.api.SafeTTeleporter;
+import com.onarandombox.MultiverseCore.utils.PlayerFinder;
 import org.bukkit.ChatColor;
 import org.bukkit.Location;
 import org.bukkit.World;
@@ -25,9 +28,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.permissions.Permission;
 import org.bukkit.permissions.PermissionDefault;
 
-import java.util.ArrayList;
 import java.util.List;
-import java.util.logging.Level;
 
 /**
  * Used to teleport players.
@@ -40,7 +41,7 @@ public class TeleportCommand extends MultiverseCommand {
         Permission menu = new Permission("multiverse.teleport.*", "Allows you to display the teleport menu.", PermissionDefault.OP);
 
         this.setName("Teleport");
-        this.setCommandUsage("/mv tp " + ChatColor.GOLD + "[PLAYER]" + ChatColor.GREEN + " {WORLD}");
+        this.setCommandUsage("/mv tp " + ChatColor.GOLD + "[PLAYER]" + ChatColor.GREEN + " {DESTINATION}");
         this.setArgRange(1, 2);
         this.addKey("mvtp");
         this.addKey("mv tp");
@@ -58,7 +59,7 @@ public class TeleportCommand extends MultiverseCommand {
         String destinationName;
 
         if (args.size() == 2) {
-            teleportee = this.plugin.getServer().getPlayer(args.get(0));
+            teleportee = PlayerFinder.get(args.get(0), sender);
             if (teleportee == null) {
                 this.messaging.sendMessage(sender, String.format("Sorry, I couldn't find player: %s%s",
                         ChatColor.GOLD, args.get(0)), false);
@@ -74,27 +75,14 @@ public class TeleportCommand extends MultiverseCommand {
             }
             teleportee = (Player) sender;
         }
-        // Special case for cannons:
-        if (destinationName.matches("(?i)cannon-[\\d]+(\\.[\\d]+)?")) {
-            String[] cannonSpeed = destinationName.split("-");
-            try {
-                double speed = Double.parseDouble(cannonSpeed[1]);
-                destinationName = "ca:" + teleportee.getWorld().getName() + ":" + teleportee.getLocation().getX()
-                        + "," + teleportee.getLocation().getY() + "," + teleportee.getLocation().getZ() + ":"
-                        + teleportee.getLocation().getPitch() + ":" + teleportee.getLocation().getYaw() + ":" + speed;
-            } catch (Exception e) {
-                destinationName = "i:invalid";
-            }
 
-        }
         DestinationFactory df = this.plugin.getDestFactory();
-        MVDestination d = df.getDestination(destinationName);
-
+        MVDestination d = df.getPlayerAwareDestination(teleportee, destinationName);
 
         MVTeleportEvent teleportEvent = new MVTeleportEvent(d, teleportee, teleporter, true);
         this.plugin.getServer().getPluginManager().callEvent(teleportEvent);
         if (teleportEvent.isCancelled()) {
-            this.plugin.log(Level.FINE, "Someone else cancelled the MVTeleport Event!!!");
+            Logging.fine("Someone else cancelled the MVTeleport Event!!!");
             return;
         }
 
@@ -162,26 +150,29 @@ public class TeleportCommand extends MultiverseCommand {
                 ((CustomTeleporterDestination)d).getTeleporter() : this.playerTeleporter;
         TeleportResult result = teleportObject.teleport(teleporter, teleportee, d);
         if (result == TeleportResult.FAIL_UNSAFE) {
-            this.plugin.log(Level.FINE, "Could not teleport " + teleportee.getName()
+            Logging.fine("Could not teleport " + teleportee.getName()
                     + " to " + plugin.getLocationManipulation().strCoordsRaw(d.getLocation(teleportee)));
-            this.plugin.log(Level.FINE, "Queueing Command");
-            Class<?>[] paramTypes = { CommandSender.class, Player.class, Location.class };
-            List<Object> items = new ArrayList<Object>();
-            items.add(teleporter);
-            items.add(teleportee);
-            items.add(d.getLocation(teleportee));
+
             String player = "you";
             if (!teleportee.equals(teleporter)) {
                 player = teleportee.getName();
             }
-            String message = String.format("%sMultiverse %sdid not teleport %s%s %sto %s%s %sbecause it was unsafe.",
-                    ChatColor.GREEN, ChatColor.WHITE, ChatColor.AQUA, player, ChatColor.WHITE, ChatColor.DARK_AQUA, d.getName(), ChatColor.WHITE);
-            this.plugin.getCommandHandler().queueCommand(sender, "mvteleport", "teleportPlayer", items,
-                    paramTypes, message, "Would you like to try anyway?", "", "", UNSAFE_TELEPORT_EXPIRE_DELAY);
+
+            this.plugin.getCommandQueueManager().addToQueue(new QueuedCommand(
+                    sender,
+                    doUnsafeTeleport(teleporter, teleportee, d.getLocation(teleportee)),
+                    String.format("%sMultiverse %sdid not teleport %s%s %sto %s%s %sbecause it was unsafe. Would you like to try anyway?",
+                            ChatColor.GREEN, ChatColor.WHITE, ChatColor.AQUA, player, ChatColor.WHITE, ChatColor.DARK_AQUA, d.getName(), ChatColor.WHITE),
+                    UNSAFE_TELEPORT_EXPIRE_DELAY
+            ));
         }
         // else: Player was teleported successfully (or the tp event was fired I should say)
     }
 
+    private Runnable doUnsafeTeleport(CommandSender teleporter, Player player, Location location) {
+        return () -> this.plugin.getSafeTTeleporter().safelyTeleport(teleporter, player, location, false);
+    }
+
     private boolean checkSendPermissions(CommandSender teleporter, Player teleportee, MVDestination destination) {
         if (teleporter.equals(teleportee)) {
             if (!this.plugin.getMVPerms().hasPermission(teleporter, "multiverse.teleport.self." + destination.getIdentifier(), true)) {

src/main/java/com/onarandombox/MultiverseCore/commandsold/UnloadCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;

src/main/java/com/onarandombox/MultiverseCore/commandsold/VersionCommand.java

@@ -0,0 +1,225 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commandsold;
+
+import com.dumptruckman.minecraft.util.Logging;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.event.MVVersionEvent;
+import com.onarandombox.MultiverseCore.utils.webpaste.PasteFailedException;
+import com.onarandombox.MultiverseCore.utils.webpaste.PasteService;
+import com.onarandombox.MultiverseCore.utils.webpaste.PasteServiceFactory;
+import com.onarandombox.MultiverseCore.utils.webpaste.PasteServiceType;
+import com.onarandombox.MultiverseCore.utils.webpaste.URLShortener;
+import com.onarandombox.MultiverseCore.utils.webpaste.URLShortenerFactory;
+import com.onarandombox.MultiverseCore.utils.webpaste.URLShortenerType;
+import com.pneumaticraft.commandhandler.CommandHandler;
+import org.apache.commons.lang.StringUtils;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.permissions.PermissionDefault;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.io.File;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Dumps version info to the console.
+ */
+public class VersionCommand extends MultiverseCommand {
+    private static final URLShortener SHORTENER = URLShortenerFactory.getService(URLShortenerType.BITLY);
+
+    public VersionCommand(MultiverseCore plugin) {
+        super(plugin);
+        this.setName("Multiverse Version");
+        this.setCommandUsage("/mv version " + ChatColor.GOLD + "[-b|-h|-p] [--include-plugin-list]");
+        this.setArgRange(0, 2);
+        this.addKey("mv version");
+        this.addKey("mvver");
+        this.addKey("mvv");
+        this.addKey("mvversion");
+        this.setPermission(
+                "multiverse.core.version",
+                "Dumps version info to the console, optionally to pastebin.com with -b, to hastebin.com using -h, or to paste.gg with -p.",
+                PermissionDefault.OP)
+        ;
+    }
+
+    private String getLegacyString() {
+        return "[Multiverse-Core] Multiverse-Core Version: " + this.plugin.getDescription().getVersion() + '\n'
+                + "[Multiverse-Core] Bukkit Version: " + this.plugin.getServer().getVersion() + '\n'
+                + "[Multiverse-Core] Loaded Worlds: " + this.plugin.getMVWorldManager().getMVWorlds() + '\n'
+                + "[Multiverse-Core] Multiverse Plugins Loaded: " + this.plugin.getPluginCount() + '\n'
+                +"[Multiverse-Core] Economy being used: " + plugin.getEconomist().getEconomyName() + '\n'
+                + "[Multiverse-Core] Permissions Plugin: " + this.plugin.getMVPerms().getType() + '\n'
+                + "[Multiverse-Core] Dumping Config Values: (version " + this.plugin.getMVConfig().getVersion() + ")" + '\n'
+                + "[Multiverse-Core]   enforceaccess: " + plugin.getMVConfig().getEnforceAccess() + '\n'
+                + "[Multiverse-Core]   prefixchat: " + plugin.getMVConfig().getPrefixChat() + '\n'
+                + "[Multiverse-Core]   prefixchatformat: " + plugin.getMVConfig().getPrefixChatFormat() + '\n'
+                + "[Multiverse-Core]   useasyncchat: " + plugin.getMVConfig().getUseAsyncChat() + '\n'
+                + "[Multiverse-Core]   teleportintercept: " + plugin.getMVConfig().getTeleportIntercept() + '\n'
+                + "[Multiverse-Core]   firstspawnoverride: " + plugin.getMVConfig().getFirstSpawnOverride() + '\n'
+                + "[Multiverse-Core]   displaypermerrors: " + plugin.getMVConfig().getDisplayPermErrors() + '\n'
+                + "[Multiverse-Core]   enablebuscript: " + plugin.getMVConfig().getEnableBuscript() + '\n'
+                + "[Multiverse-Core]   globaldebug: " + plugin.getMVConfig().getGlobalDebug() + '\n'
+                + "[Multiverse-Core]   silentstart: " + plugin.getMVConfig().getSilentStart() + '\n'
+                + "[Multiverse-Core]   messagecooldown: " + plugin.getMessaging().getCooldown() + '\n'
+                + "[Multiverse-Core]   version: " + plugin.getMVConfig().getVersion() + '\n'
+                + "[Multiverse-Core]   firstspawnworld: " + plugin.getMVConfig().getFirstSpawnWorld() + '\n'
+                + "[Multiverse-Core]   teleportcooldown: " + plugin.getMVConfig().getTeleportCooldown() + '\n'
+                + "[Multiverse-Core]   defaultportalsearch: " + plugin.getMVConfig().isUsingDefaultPortalSearch() + '\n'
+                + "[Multiverse-Core]   portalsearchradius: " + plugin.getMVConfig().getPortalSearchRadius() + '\n'
+                + "[Multiverse-Core]   autopurge: " + plugin.getMVConfig().isAutoPurgeEnabled() + '\n'
+                + "[Multiverse-Core] Special Code: FRN002" + '\n';
+    }
+
+    private String getMarkdownString() {
+        return "# Multiverse-Core" + '\n'
+                + "## Overview" + '\n'
+                + "| Name | Value |" + '\n'
+                + "| --- | --- |" + '\n'
+                + "| Multiverse-Core Version | `" + this.plugin.getDescription().getVersion() + "` |" + '\n'
+                + "| Bukkit Version | `" + this.plugin.getServer().getVersion() + "` |" + '\n'
+                + "| Loaded Worlds | `" + this.plugin.getMVWorldManager().getMVWorlds() + "` |" + '\n'
+                + "| Multiverse Plugins Loaded | `" + this.plugin.getPluginCount() + "` |" + '\n'
+                + "| Economy being used | `" + plugin.getEconomist().getEconomyName() + "` |" + '\n'
+                + "| Permissions Plugin | `" + this.plugin.getMVPerms().getType() + "` |" + '\n'
+                + "## Parsed Config" + '\n'
+                + "These are what Multiverse thought the in-memory values of the config were." + "\n\n"
+                + "| Config Key  | Value |" + '\n'
+                + "| --- | --- |" + '\n'
+                + "| version | `" + this.plugin.getMVConfig().getVersion() + "` |" + '\n'
+                + "| messagecooldown | `" + plugin.getMessaging().getCooldown() + "` |" + '\n'
+                + "| teleportcooldown | `" + plugin.getMVConfig().getTeleportCooldown() + "` |" + '\n'
+                + "| worldnameprefix | `" + plugin.getMVConfig().getPrefixChat() + "` |" + '\n'
+                + "| worldnameprefixFormat | `" + plugin.getMVConfig().getPrefixChatFormat() + "` |" + '\n'
+                + "| enforceaccess | `" + plugin.getMVConfig().getEnforceAccess() + "` |" + '\n'
+                + "| displaypermerrors | `" + plugin.getMVConfig().getDisplayPermErrors() + "` |" + '\n'
+                + "| teleportintercept | `" + plugin.getMVConfig().getTeleportIntercept() + "` |" + '\n'
+                + "| firstspawnoverride | `" + plugin.getMVConfig().getFirstSpawnOverride() + "` |" + '\n'
+                + "| firstspawnworld | `" + plugin.getMVConfig().getFirstSpawnWorld() + "` |" + '\n'
+                + "| debug | `" + plugin.getMVConfig().getGlobalDebug() + "` |" + '\n';
+    }
+
+    private void addVersionInfoToEvent(MVVersionEvent event) {
+        // add the legacy version info
+        event.appendVersionInfo(this.getLegacyString());
+
+        // add the legacy file, but as markdown so it's readable
+        // TODO Readd this in 5.0.0
+        // event.putDetailedVersionInfo("version.md", this.getMarkdownString());
+
+        // add config.yml
+        File configFile = new File(this.plugin.getDataFolder(), "config.yml");
+        event.putDetailedVersionInfo("multiverse-core/config.yml", configFile);
+
+        // add worlds.yml
+        File worldsFile = new File(this.plugin.getDataFolder(), "worlds.yml");
+        event.putDetailedVersionInfo("multiverse-core/worlds.yml", worldsFile);
+    }
+
+    @Override
+    public void runCommand(final CommandSender sender, final List<String> args) {
+        // Check if the command was sent from a Player.
+        if (sender instanceof Player) {
+            sender.sendMessage("Version info dumped to console. Please check your server logs.");
+        }
+
+        MVVersionEvent versionEvent = new MVVersionEvent();
+
+        this.addVersionInfoToEvent(versionEvent);
+        this.plugin.getServer().getPluginManager().callEvent(versionEvent);
+
+        if (CommandHandler.hasFlag("--include-plugin-list", args)) {
+            versionEvent.appendVersionInfo('\n' + "Plugins: " + getPluginList());
+            versionEvent.putDetailedVersionInfo("plugins.txt", "Plugins: " + getPluginList());
+        }
+
+        final String versionInfo = versionEvent.getVersionInfo();
+        versionEvent.putDetailedVersionInfo("version.txt", versionInfo);
+
+        final Map<String, String> files = versionEvent.getDetailedVersionInfo();
+
+        // log to console
+        String[] lines = versionInfo.split("\\r?\\n");
+        for (String line : lines) {
+            if (!line.isEmpty()) {
+                this.plugin.getServer().getLogger().info(line);
+            }
+        }
+
+        BukkitRunnable logPoster = new BukkitRunnable() {
+            @Override
+            public void run() {
+                if (args.size() > 0) {
+                    String pasteUrl;
+                    if (CommandHandler.hasFlag("-b", args)) {
+                        // private post to pastebin
+                        pasteUrl = postToService(PasteServiceType.PASTEBIN, true, versionInfo, files);
+                    } else if (CommandHandler.hasFlag("-g", args)) {
+                        // private post to github
+                        pasteUrl = postToService(PasteServiceType.GITHUB, true, versionInfo, files);
+                    } else if (CommandHandler.hasFlag("-h", args)) {
+                        // private post to hastebin
+                        pasteUrl = postToService(PasteServiceType.HASTEBIN, true, versionInfo, files);
+                    } else if (CommandHandler.hasFlag("-p", args)) {
+                        // private post to paste.gg
+                        pasteUrl = postToService(PasteServiceType.PASTEGG, true, versionInfo, files);
+                    } else {
+                        return;
+                    }
+
+                    if (!(sender instanceof ConsoleCommandSender)) {
+                        sender.sendMessage("Version info dumped here: " + ChatColor.GREEN + pasteUrl);
+                    }
+                    Logging.info("Version info dumped here: %s", pasteUrl);
+                }
+            }
+        };
+
+        // Run the log posting operation asynchronously, since we don't know how long it will take.
+        logPoster.runTaskAsynchronously(this.plugin);
+    }
+
+    /**
+     * Send the current contents of this.pasteBinBuffer to a web service.
+     *
+     * @param type       Service type to send paste data to.
+     * @param isPrivate  Should the paste be marked as private.
+     * @param pasteData  Legacy string only data to post to a service.
+     * @param pasteFiles Map of filenames/contents of debug info.
+     * @return URL of visible paste
+     */
+    private static String postToService(PasteServiceType type, boolean isPrivate, String pasteData, Map<String, String> pasteFiles) {
+        PasteService ps = PasteServiceFactory.getService(type, isPrivate);
+
+        try {
+            String result;
+            if (ps.supportsMultiFile()) {
+                result = ps.postData(pasteFiles);
+            } else {
+                result = ps.postData(pasteData);
+            }
+
+            if (SHORTENER != null) return SHORTENER.shorten(result);
+            return result;
+        } catch (PasteFailedException e) {
+            e.printStackTrace();
+            return "Error posting to service.";
+        } catch (NullPointerException e) {
+            e.printStackTrace();
+            return "That service isn't supported yet.";
+        }
+    }
+
+    private String getPluginList() {
+        return StringUtils.join(plugin.getServer().getPluginManager().getPlugins(), ", ");
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandsold/WhoCommand.java

@@ -5,7 +5,7 @@
  * with this project.                                                         *
  ******************************************************************************/
 
-package com.onarandombox.MultiverseCore.commands;
+package com.onarandombox.MultiverseCore.commandsold;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;

src/main/java/com/onarandombox/MultiverseCore/commandsold/package-info.java

@@ -0,0 +1,4 @@
+/**
+ * This package contains all Commands.
+ */
+package com.onarandombox.MultiverseCore.commandsold;

src/main/java/com/onarandombox/MultiverseCore/commandtools/MVCommandCompletions.java

@@ -0,0 +1,9 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import co.aikar.commands.PaperCommandCompletions;
+
+public class MVCommandCompletions extends PaperCommandCompletions {
+    public MVCommandCompletions(MVCommandManager mvCommandManager) {
+        super(mvCommandManager);
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandtools/MVCommandContexts.java

@@ -0,0 +1,9 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import co.aikar.commands.PaperCommandContexts;
+
+public class MVCommandContexts extends PaperCommandContexts {
+    public MVCommandContexts(MVCommandManager mvCommandManager) {
+        super(mvCommandManager);
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandtools/MVCommandManager.java

@@ -0,0 +1,54 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import java.util.Locale;
+
+import co.aikar.commands.BukkitCommandCompletionContext;
+import co.aikar.commands.BukkitCommandExecutionContext;
+import co.aikar.commands.CommandCompletions;
+import co.aikar.commands.CommandContexts;
+import co.aikar.commands.PaperCommandManager;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+
+/**
+ * Main class to manage permissions.
+ */
+public class MVCommandManager extends PaperCommandManager {
+
+    private final MultiverseCore plugin;
+
+    public MVCommandManager(MultiverseCore plugin) {
+        super(plugin);
+        this.plugin = plugin;
+
+        // Setup locale
+        this.addSupportedLanguage(Locale.ENGLISH);
+        this.locales.addMessageBundles("multiverse-core");
+        this.locales.loadLanguages();
+    }
+
+    /**
+     * Gets class responsible for parsing string args into objects.
+     *
+     * @return A not-null {@link CommandContexts}.
+     */
+    @Override
+    public synchronized CommandContexts<BukkitCommandExecutionContext> getCommandContexts() {
+        if (this.contexts == null) {
+            this.contexts = new MVCommandContexts(this);
+        }
+        return this.contexts;
+    }
+
+    /**
+     * Gets class responsible for tab-completion handling.
+     *
+     * @return A not-null {@link CommandCompletions}.
+     */
+    @Override
+    public synchronized CommandCompletions<BukkitCommandCompletionContext> getCommandCompletions() {
+        if (this.completions == null) {
+            this.completions = new MVCommandCompletions(this);
+        }
+        return this.completions;
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandtools/queue/CommandQueueManager.java

@@ -0,0 +1,161 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2020.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commandtools.queue;
+
+import com.dumptruckman.minecraft.util.Logging;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.block.data.type.CommandBlock;
+import org.bukkit.command.BlockCommandSender;
+import org.bukkit.command.CommandSender;
+import org.bukkit.scheduler.BukkitTask;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Map;
+import java.util.WeakHashMap;
+
+/**
+ * <p>Manages the queuing of dangerous commands that require {@code /mv confirm} before executing.</p>
+ *
+ * <p>Each sender can only have one command in queue at any given time. When a queued command is added
+ * for a sender that already has a command in queue, it will replace the old queued command.</p>
+ */
+public class CommandQueueManager {
+
+    private static final long TICKS_PER_SECOND = 20;
+    private static final DummyCommandBlockSender COMMAND_BLOCK = new DummyCommandBlockSender();
+
+    private final MultiverseCore plugin;
+    private final Map<CommandSender, QueuedCommand> queuedCommandMap;
+
+    public CommandQueueManager(@NotNull MultiverseCore plugin) {
+        this.plugin = plugin;
+        this.queuedCommandMap = new WeakHashMap<>();
+    }
+
+    /**
+     * Adds a {@link QueuedCommand} into queue.
+     *
+     * @param queuedCommand The queued command to add.
+     */
+    public void addToQueue(QueuedCommand queuedCommand) {
+        CommandSender targetSender = parseSender(queuedCommand.getSender());
+
+        // Since only one command is stored in queue per sender, we remove the old one.
+        this.removeFromQueue(targetSender);
+
+        Logging.finer("Add new command to queue for sender %s.", targetSender);
+        this.queuedCommandMap.put(targetSender, queuedCommand);
+        queuedCommand.setExpireTask(runExpireLater(queuedCommand));
+
+        queuedCommand.getSender().sendMessage(queuedCommand.getPrompt());
+        queuedCommand.getSender().sendMessage(String.format("Run %s/mv confirm %sto continue. This will expire in %s seconds.",
+                ChatColor.GREEN, ChatColor.WHITE, queuedCommand.getValidDuration()));
+    }
+
+    /**
+     * Expire task that removes a {@link QueuedCommand} from queue after valid duration defined.
+     *
+     * @param queuedCommand Command to run the expire task on.
+     * @return The expire {@link BukkitTask}.
+     */
+    @NotNull
+    private BukkitTask runExpireLater(@NotNull QueuedCommand queuedCommand) {
+        return Bukkit.getScheduler().runTaskLater(
+                this.plugin,
+                expireRunnable(queuedCommand),
+                queuedCommand.getValidDuration() * TICKS_PER_SECOND
+        );
+    }
+
+    /**
+     * Runnable responsible for expiring the queued command.
+     *
+     * @param queuedCommand Command to create the expire task on.
+     * @return The expire runnable.
+     */
+    @NotNull
+    private Runnable expireRunnable(@NotNull QueuedCommand queuedCommand) {
+        return () -> {
+            CommandSender targetSender = parseSender(queuedCommand.getSender());
+            QueuedCommand matchingQueuedCommand = this.queuedCommandMap.get(targetSender);
+            if (!queuedCommand.equals(matchingQueuedCommand) || queuedCommand.getExpireTask().isCancelled()) {
+                // To be safe, but this shouldn't happen since we cancel old commands before add new once.
+                Logging.finer("This is an old queue command already.");
+                return;
+            }
+            queuedCommand.getSender().sendMessage("Your queued command has expired.");
+            this.queuedCommandMap.remove(queuedCommand.getSender());
+        };
+    }
+
+    /**
+     * Runs the command in queue for the given sender, if any.
+     *
+     * @param sender    {@link CommandSender} that confirmed the command.
+     * @return True if queued command ran successfully, else false.
+     */
+    public boolean runQueuedCommand(@NotNull CommandSender sender) {
+        CommandSender targetSender = parseSender(sender);
+        QueuedCommand queuedCommand = this.queuedCommandMap.get(targetSender);
+        if (queuedCommand == null) {
+            sender.sendMessage(ChatColor.RED + "You do not have any commands in queue.");
+            return false;
+        }
+        Logging.finer("Running queued command...");
+        queuedCommand.getAction().run();
+        return removeFromQueue(targetSender);
+    }
+
+    /**
+     * Since only one command is stored in queue per sender, we remove the old one.
+     *
+     * @param sender    The {@link CommandSender} that executed the command.
+     * @return True if queue command is removed from sender successfully, else false.
+     */
+    public boolean removeFromQueue(@NotNull CommandSender sender) {
+        CommandSender targetSender = parseSender(sender);
+        QueuedCommand previousCommand = this.queuedCommandMap.remove(targetSender);
+        if (previousCommand == null) {
+            Logging.finer("No queue command to remove for sender %s.", targetSender.getName());
+            return false;
+        }
+        previousCommand.getExpireTask().cancel();
+        Logging.finer("Removed queue command for sender %s.", targetSender.getName());
+        return true;
+    }
+
+    /**
+     * To allow all CommandBlocks to be a common sender with use of {@link DummyCommandBlockSender}.
+     * So confirm command can be used for a queued command on another command block.
+     *
+     * @param sender    The sender to parse.
+     * @return The sender, or if its a command block, a {@link DummyCommandBlockSender}.
+     */
+    @NotNull
+    private CommandSender parseSender(@NotNull CommandSender sender) {
+        Logging.fine(sender.getClass().getName());
+        if (isCommandBlock(sender)) {
+            Logging.finer("Is command block.");
+            return COMMAND_BLOCK;
+        }
+        return sender;
+    }
+
+    /**
+     * Checks if the sender is a command block.
+     *
+     * @param sender    The sender to check.
+     * @return True if sender is a command block, else false.
+     */
+    private boolean isCommandBlock(@NotNull CommandSender sender) {
+        return sender instanceof BlockCommandSender
+                && ((BlockCommandSender) sender).getBlock().getBlockData() instanceof CommandBlock;
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandtools/queue/DummyCommandBlockSender.java

@@ -0,0 +1,121 @@
+package com.onarandombox.MultiverseCore.commandtools.queue;
+
+import org.bukkit.Bukkit;
+import org.bukkit.Server;
+import org.bukkit.command.CommandSender;
+import org.bukkit.permissions.Permission;
+import org.bukkit.permissions.PermissionAttachment;
+import org.bukkit.permissions.PermissionAttachmentInfo;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * Used by {@link CommandQueueManager}, so different commands block can be recognised as one.
+ */
+class DummyCommandBlockSender implements CommandSender {
+
+    @Override
+    public void sendMessage(@NotNull String message) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void sendMessage(@NotNull String[] messages) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void sendMessage(@Nullable UUID uuid, @NotNull String s) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void sendMessage(@Nullable UUID uuid, @NotNull String[] strings) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public @NotNull Server getServer() {
+        return Bukkit.getServer();
+    }
+
+    @Override
+    public @NotNull String getName() {
+        return "DummyCommandBlockSender";
+    }
+
+    @NotNull
+    @Override
+    public Spigot spigot() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean isPermissionSet(@NotNull String name) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean isPermissionSet(@NotNull Permission perm) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean hasPermission(@NotNull String name) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean hasPermission(@NotNull Permission perm) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public @NotNull PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public @NotNull PermissionAttachment addAttachment(@NotNull Plugin plugin) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public @Nullable PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value, int ticks) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public @Nullable PermissionAttachment addAttachment(@NotNull Plugin plugin, int ticks) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void removeAttachment(@NotNull PermissionAttachment attachment) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void recalculatePermissions() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public @NotNull Set<PermissionAttachmentInfo> getEffectivePermissions() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean isOp() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void setOp(boolean value) {
+        throw new UnsupportedOperationException();
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandtools/queue/QueuedCommand.java

@@ -0,0 +1,86 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2020.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commandtools.queue;
+
+import org.bukkit.command.CommandSender;
+import org.bukkit.scheduler.BukkitTask;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Represents a single command used in {@link CommandQueueManager} for confirming before running potentially
+ * dangerous action.
+ */
+public class QueuedCommand {
+
+    private static final String DEFAULT_PROMPT_MESSAGE = "The command you are trying to run is deemed dangerous.";
+    private static final int DEFAULT_VALID_TIME = 10;
+
+    private final CommandSender sender;
+    private final Runnable action;
+    private final String prompt;
+    private final int validDuration;
+    private BukkitTask expireTask;
+
+    public QueuedCommand(CommandSender sender, Runnable action) {
+        this(sender, action, DEFAULT_PROMPT_MESSAGE, DEFAULT_VALID_TIME);
+    }
+
+    public QueuedCommand(CommandSender sender, Runnable action, String prompt) {
+        this(sender, action, prompt, DEFAULT_VALID_TIME);
+    }
+
+    public QueuedCommand(CommandSender sender, Runnable action, int validDuration) {
+        this(sender, action, DEFAULT_PROMPT_MESSAGE, validDuration);
+    }
+
+    /**
+     * Creates a new queue command, to be registered at {@link CommandQueueManager#addToQueue(QueuedCommand)}.
+     *
+     * @param sender        The sender that ran the command needed for confirmation.
+     * @param action        The logic to execute upon confirming.
+     * @param prompt        Question to ask sender to confirm.
+     * @param validDuration Duration in which the command is valid for confirm in seconds.
+     */
+    public QueuedCommand(CommandSender sender, Runnable action, String prompt, int validDuration) {
+        this.sender = sender;
+        this.action = action;
+        this.prompt = prompt;
+        this.validDuration = validDuration;
+    }
+
+    @NotNull
+    CommandSender getSender() {
+        return sender;
+    }
+
+    @NotNull
+    String getPrompt() {
+        return prompt;
+    }
+
+    int getValidDuration() {
+        return validDuration;
+    }
+
+    @NotNull
+    Runnable getAction() {
+        return action;
+    }
+
+    @NotNull
+    BukkitTask getExpireTask() {
+        return expireTask;
+    }
+
+    void setExpireTask(@NotNull BukkitTask expireTask) {
+        if (this.expireTask != null) {
+            throw new IllegalStateException("This queue command already has an expire task. You can't register twice!");
+        }
+        this.expireTask = expireTask;
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/commandtools/queue/package-info.java

@@ -0,0 +1,4 @@
+/**
+ * Manager queuing of dangerous commands in need of confirmation.
+ */
+package com.onarandombox.MultiverseCore.commandtools.queue;

src/main/java/com/onarandombox/MultiverseCore/configuration/EntryFee.java

@@ -2,10 +2,14 @@ package com.onarandombox.MultiverseCore.configuration;
 
 import java.util.Map;
 
+import com.onarandombox.MultiverseCore.utils.MaterialConverter;
 import me.main__.util.SerializationConfig.Property;
 import me.main__.util.SerializationConfig.SerializationConfig;
 
+import me.main__.util.SerializationConfig.Serializor;
+import org.bukkit.Material;
 import org.bukkit.configuration.serialization.SerializableAs;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Entryfee-settings.
@@ -14,8 +18,11 @@ import org.bukkit.configuration.serialization.SerializableAs;
 public class EntryFee extends SerializationConfig {
     @Property
     private double amount;
-    @Property
-    private int currency;
+    @Property(serializor = EntryFeeCurrencySerializor.class)
+    @Nullable
+    private Material currency;
+
+    private final Material DISABLED_MATERIAL = Material.AIR;
 
     public EntryFee() {
         super();
@@ -31,7 +38,7 @@ public class EntryFee extends SerializationConfig {
     @Override
     protected void setDefaults() {
         amount = 0D;
-        currency = -1;
+        currency = null;
     }
 
     /**
@@ -44,7 +51,11 @@ public class EntryFee extends SerializationConfig {
     /**
      * @return the currency
      */
-    public int getCurrency() {
+    @Nullable
+    public Material getCurrency() {
+        if (currency == null || currency.equals(DISABLED_MATERIAL)) {
+            return null;
+        }
         return currency;
     }
 
@@ -60,7 +71,19 @@ public class EntryFee extends SerializationConfig {
      * Sets the currency.
      * @param currency The new value.
      */
-    public void setCurrency(int currency) {
+    public void setCurrency(@Nullable Material currency) {
         this.currency = currency;
     }
+
+    public static final class EntryFeeCurrencySerializor implements Serializor<Material, Object> {
+        @Override
+        public String serialize(Material material) {
+            return material.toString();
+        }
+
+        @Override
+        public Material deserialize(Object o, Class<Material> aClass) {
+            return MaterialConverter.convertTypeString(o.toString());
+        }
+    }
 }

src/main/java/com/onarandombox/MultiverseCore/configuration/MVActiveConfigProperty.java

@@ -1,37 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2012.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.configuration;
-
-/**
- * An "active" {@link MVConfigProperty} that uses the specified method to be "actually" set.
- * @param <T> The type of the config-property.
- * @deprecated This is deprecated.
- * @see MVConfigProperty
- */
-@Deprecated
-public interface MVActiveConfigProperty<T> extends MVConfigProperty<T> {
-    /**
-     * Gets the method that will be executed.
-     *
-     * @return The name of the method in MVWorld to be called.
-     */
-    String getMethod();
-
-    /**
-     * Sets the method that will be executed.
-     *
-     * @param methodName The name of the method in MVWorld to be called.
-     */
-    void setMethod(String methodName);
-
-    /**
-     * Returns the class of the object we're looking at.
-     * @return the class of the object we're looking at.
-     */
-    Class<?> getPropertyClass();
-}

src/main/java/com/onarandombox/MultiverseCore/configuration/MVConfigProperty.java

@@ -1,69 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.configuration;
-
-/**
- * A generic config-property.
- *
- * @param <T> The type of the config-property.
- * @deprecated This is deprecated.
- */
-@Deprecated
-public interface MVConfigProperty<T> {
-    /**
-     * Gets the name of this property.
-     *
-     * @return The name of this property.
-     */
-    String getName();
-
-    /**
-     * Gets the value of this property.
-     *
-     * @return The value of this property.
-     */
-    T getValue();
-
-    /**
-     * Gets the string representation of this value.
-     *
-     * @return The value of this property as a string.
-     */
-    String toString();
-
-    /**
-     * Gets the help string for this.
-     *
-     * @return The value of this property as a string.
-     */
-    String getHelp();
-
-    /**
-     * Sets the value of this property.
-     *
-     * @param value The T representation of this value.
-     * @return True the value was successfully set.
-     */
-    boolean setValue(T value);
-
-    /**
-     * This parseValue should be used with strings.
-     *
-     * @param value The string representation of the value to set.
-     *
-     * @return True if the value was set, false if not.
-     */
-    boolean parseValue(String value);
-
-    /**
-     * Gets the name of the config-node that this {@link MVConfigProperty} is saved as.
-     *
-     * @return The name of the config-node that this {@link MVConfigProperty} is saved as.
-     */
-    String getConfigNode();
-}

src/main/java/com/onarandombox/MultiverseCore/destination/BedDestination.java

@@ -23,7 +23,7 @@ import org.bukkit.util.Vector;
  * A bed-{@link MVDestination}.
  */
 public class BedDestination implements MVDestination {
-    public static final String OLD_BED_STRING = "b:playerbed";
+    public static final String OWN_BED_STRING = "playerbed";
     private String playername = "";
     private boolean isValid;
     private Location knownBedLoc;
@@ -46,11 +46,11 @@ public class BedDestination implements MVDestination {
         boolean validFormat = split.length >= 1 && split.length <= 2 && split[0].equals(this.getIdentifier());
 
         OfflinePlayer p = Bukkit.getOfflinePlayer(split[1]);
-        boolean validPlayer = (p != null);
+        boolean validPlayer = p.getName() != null && !p.getName().equals(OWN_BED_STRING);
 
         if (validFormat && validPlayer) this.playername = p.getName();
 
-        this.isValid = destination.equals(OLD_BED_STRING) || (validFormat && validPlayer);
+        this.isValid = destination.equals("b:" + OWN_BED_STRING) || (validFormat && validPlayer);
 
         return this.isValid;
     }
@@ -136,6 +136,6 @@ public class BedDestination implements MVDestination {
 
     @Override
     public String toString() {
-        return playername.isEmpty() ? OLD_BED_STRING : ("b:" + playername);
+        return "b:" + (playername.isEmpty() ? OWN_BED_STRING : playername);
     }
 }

src/main/java/com/onarandombox/MultiverseCore/destination/DestinationFactory.java

@@ -9,18 +9,29 @@ package com.onarandombox.MultiverseCore.destination;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVDestination;
-import com.onarandombox.MultiverseCore.commands.TeleportCommand;
+import com.onarandombox.MultiverseCore.commandsold.TeleportCommand;
 import com.onarandombox.MultiverseCore.utils.PermissionTools;
+import com.onarandombox.MultiverseCore.utils.PlayerFinder;
 import com.pneumaticraft.commandhandler.Command;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
 import org.bukkit.permissions.Permission;
 import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;
 
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.regex.Pattern;
 
-/** A factory class that will create destinations from specific strings. */
+/**
+ * A factory class that will create destinations from specific strings.
+ */
 public class DestinationFactory {
+
+    private static final Pattern CANNON_PATTERN = Pattern.compile("(?i)cannon-[\\d]+(\\.[\\d]+)?");
+
     private MultiverseCore plugin;
     private Map<String, Class<? extends MVDestination>> destList;
     private Command teleportCommand;
@@ -36,6 +47,59 @@ public class DestinationFactory {
         }
     }
 
+    /**
+     * Parse a destination that has relation to sender, such as a cannon or player destination.
+     *
+     * @param teleportee        The player that is going to be teleported.
+     * @param destinationName   The destination to parse.
+     * @return A non-null MVDestination
+     */
+    @NotNull
+    public MVDestination getPlayerAwareDestination(@NotNull Player teleportee,
+                                                   @NotNull String destinationName) {
+
+        // Prioritise world, in the event that a world is named after a player online.
+        if (Bukkit.getWorld(destinationName) != null) {
+            return getDestination(destinationName);
+        }
+
+        Player targetPlayer = PlayerFinder.get(destinationName, teleportee);
+        if (targetPlayer != null) {
+            return getDestination("pl:" + targetPlayer.getName());
+        }
+
+        if (CANNON_PATTERN.matcher(destinationName).matches()) {
+            return getDestination(parseCannonDest(teleportee, destinationName));
+        }
+
+        return getDestination(destinationName);
+    }
+
+    /**
+     * Parses a cannon destination.
+     *
+     * @param teleportee        The player that is going to be teleported.
+     * @param destinationName   The destination to parse.
+     * @return A destination string.
+     */
+    @NotNull
+    private String parseCannonDest(@NotNull Player teleportee,
+                                   @NotNull String destinationName) {
+
+        String[] cannonSpeed = destinationName.split("-");
+        try {
+            double speed = Double.parseDouble(cannonSpeed[1]);
+            destinationName = "ca:" + teleportee.getWorld().getName() + ":" + teleportee.getLocation().getX()
+                    + "," + teleportee.getLocation().getY() + "," + teleportee.getLocation().getZ() + ":"
+                    + teleportee.getLocation().getPitch() + ":" + teleportee.getLocation().getYaw() + ":" + speed;
+        }
+        catch (Exception e) {
+            destinationName = "i:invalid";
+        }
+
+        return destinationName;
+    }
+
     /**
      * Gets a new destination from a string.
      * Returns a new InvalidDestination if the string could not be parsed.
@@ -101,4 +165,13 @@ public class DestinationFactory {
         this.teleportCommand.addAdditonalPermission(other);
         return true;
     }
+
+    /**
+     * Gets all the {@link MVDestination} identifiers registered.
+     *
+     * @return A collection of destination identifiers.
+     */
+    public Collection<String> getRegisteredIdentifiers() {
+        return this.destList.keySet();
+    }
 }

src/main/java/com/onarandombox/MultiverseCore/destination/ExactDestination.java

@@ -21,9 +21,10 @@ import java.util.List;
  * An exact {@link MVDestination}.
  */
 public class ExactDestination implements MVDestination {
-    private final String coordRegex = "(-?[\\d]+\\.?[\\d]*),(-?[\\d]+\\.?[\\d]*),(-?[\\d]+\\.?[\\d]*)";
+    private final String coordRegex = "(-?[\\d]+\\.?[\\d]*|~-?[\\d]+\\.?[\\d]*|~),(-?[\\d]+\\.?[\\d]*|~-?[\\d]+\\.?[\\d]*|~),(-?[\\d]+\\.?[\\d]*|~-?[\\d]+\\.?[\\d]*|~)";
     private boolean isValid;
     private Location location;
+    private boolean relativeX, relativeY, relativeZ;
 
     /**
      * {@inheritDoc}
@@ -88,7 +89,20 @@ public class ExactDestination implements MVDestination {
      */
     @Override
     public Location getLocation(Entity e) {
-        return this.location;
+        Location loc = this.location.clone();
+        if (relativeX || relativeY || relativeZ) {
+            Location eLoc = e.getLocation();
+            loc.add(relativeX ? eLoc.getX() : 0, relativeY ? eLoc.getY() : 0, relativeZ ? eLoc.getZ() : 0);
+            // Since the location is relative, it makes sense to use the entity's pitch and yaw unless those were
+            // specified in the destination.
+            if (loc.getPitch() == 0) {
+                loc.setPitch(eLoc.getPitch());
+            }
+            if (loc.getYaw() == 0) {
+                loc.setYaw(eLoc.getYaw());
+            }
+        }
+        return loc;
     }
 
     /**
@@ -134,11 +148,42 @@ public class ExactDestination implements MVDestination {
         double[] coords = new double[3];
         String[] coordString = parsed.get(2).split(",");
         for (int i = 0; i < 3; i++) {
-            try {
-                coords[i] = Double.parseDouble(coordString[i]);
-            } catch (NumberFormatException e) {
-                this.isValid = false;
-                return;
+            String[] relSplit = coordString[i].split("~");
+            boolean relative = false;
+            if (relSplit.length == 0) {
+                // coord is "~" form
+                relative = true;
+                coords[i] = 0;
+            } else if (relSplit.length == 1) {
+                // coord is "123" form
+                try {
+                    coords[i] = Double.parseDouble(relSplit[0]);
+                } catch (NumberFormatException e) {
+                    this.isValid = false;
+                    return;
+                }
+            } else {
+                // coord is "~123" form
+                relative = true;
+                try {
+                    coords[i] = Double.parseDouble(relSplit[1]);
+                } catch (NumberFormatException e) {
+                    this.isValid = false;
+                    return;
+                }
+            }
+            if (relative) {
+                switch (i) {
+                    case 0:
+                        relativeX = true;
+                        break;
+                    case 1:
+                        relativeY = true;
+                        break;
+                    case 2:
+                        relativeZ = true;
+                        break;
+                }
             }
         }
         this.location.setX(coords[0]);

src/main/java/com/onarandombox/MultiverseCore/destination/PlayerDestination.java

@@ -50,7 +50,7 @@ public class PlayerDestination implements MVDestination {
      */
     @Override
     public Location getLocation(Entity e) {
-        Player p = plugin.getServer().getPlayer(this.player);
+        Player p = plugin.getServer().getPlayerExact(this.player);
         Player plLoc = null;
         if (e instanceof Player) {
             plLoc = (Player) e;

src/main/java/com/onarandombox/MultiverseCore/display/ColorAlternator.java

@@ -0,0 +1,62 @@
+package com.onarandombox.MultiverseCore.display;
+
+import org.bukkit.ChatColor;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Helper class to switch between 2 {@link ChatColor}.
+ */
+public class ColorAlternator implements ColorTool {
+
+    /**
+     * Creates a new {@link ColorAlternator} with 2 {@link ChatColor}s.
+     *
+     * @param colorThis The first color.
+     * @param colorThat The second color.
+     * @return The {@link ColorAlternator} created for you.
+     */
+    public static ColorAlternator with(@NotNull ChatColor colorThis,
+                                       @NotNull ChatColor colorThat) {
+
+        return new ColorAlternator(colorThis, colorThat);
+    }
+
+    private boolean switcher;
+    private final ChatColor thisColor;
+    private final ChatColor thatColor;
+
+    /**
+     * @param colorThis The first color.
+     * @param colorThat The second color.
+     */
+    public ColorAlternator(@NotNull ChatColor colorThis,
+                           @NotNull ChatColor colorThat) {
+
+        this.thisColor = colorThis;
+        this.thatColor = colorThat;
+    }
+
+    /**
+     * Gets the color. Everytime this method is called, it swaps the color that it returns.
+     *
+     * @return The color.
+     */
+    @Override
+    public ChatColor get() {
+        return (this.switcher ^= true) ? this.thisColor : this.thatColor;
+    }
+
+    /**
+     * @return The first color.
+     */
+    public ChatColor getThisColor() {
+        return thisColor;
+    }
+
+    /**
+     * @return The second color.
+     */
+    public ChatColor getThatColor() {
+        return thatColor;
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/ColorTool.java

@@ -0,0 +1,22 @@
+package com.onarandombox.MultiverseCore.display;
+
+import org.bukkit.ChatColor;
+
+/**
+ * Tools to allow customisation.
+ */
+@FunctionalInterface
+public interface ColorTool {
+
+    /**
+     * Gets a chat color.
+     *
+     * @return The color.
+     */
+    ChatColor get();
+
+    /**
+     * Default implementation of this interface. Returns a default white color.
+     */
+    ColorTool DEFAULT = () -> ChatColor.WHITE;
+}

src/main/java/com/onarandombox/MultiverseCore/display/ContentDisplay.java

@@ -0,0 +1,268 @@
+package com.onarandombox.MultiverseCore.display;
+
+import com.onarandombox.MultiverseCore.display.settings.DisplaySetting;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.Map;
+import java.util.Objects;
+import java.util.WeakHashMap;
+
+/**
+ * Helps to display contents such as list and maps in a nicely formatted fashion.
+ *
+ * @param <T>   Type of content to display.
+ */
+public class ContentDisplay<T> {
+
+    public static final String LINE_BREAK = "%br%";
+
+    /**
+     * Creates a ContentDisplay.Builder for the given content.
+     *
+     * @param content The content to be displayed.
+     * @param <T> The type of the content which can be inferred.
+     * @return A new Builder.
+     */
+    public static <T> Builder<T> forContent(T content) {
+        return new Builder<>(content);
+    }
+
+    /**
+     * Creates a ContentDisplay.Builder for the given collection of content.
+     *
+     * @param content The content to be displayed.
+     * @return A new Builder.
+     */
+    public static Builder<Collection<String>> forContent(Collection<String> content) {
+        return new Builder<>(content).displayHandler(DisplayHandlers.LIST);
+    }
+
+    /**
+     * Creates a ContentDisplay.Builder for the given map of content.
+     *
+     * @param content The content to be displayed.
+     * @return A new Builder.
+     */
+    public static Builder<Map<String, Object>> forContent(Map<String, Object> content) {
+        return new Builder<>(content).displayHandler(DisplayHandlers.INLINE_MAP);
+    }
+
+    private final T contents;
+
+    private String header;
+    private String emptyMessage = "No matching content to display.";
+    private DisplayHandler<T> displayHandler;
+    private ColorTool colorTool = ColorTool.DEFAULT;
+    private ContentFilter filter = ContentFilter.DEFAULT;
+    private final Map<DisplaySetting<?>, Object> settingsMap = new WeakHashMap<>();
+
+    private ContentDisplay(T contents) {
+        this.contents = contents;
+    }
+
+    /**
+     * Do the actual displaying of contents to the sender.
+     *
+     * @param sender The CommandSender to show the display to.
+     */
+    public void show(@NotNull CommandSender sender) {
+        Collection<String> formattedContent;
+        try {
+            formattedContent = (this.contents == null) ? null : this.displayHandler.format(sender, this);
+        } catch (DisplayFormatException e) {
+            sender.sendMessage(String.format("%sError: %s", ChatColor.RED, e.getMessage()));
+            return;
+        }
+        this.displayHandler.sendHeader(sender, this);
+        this.displayHandler.sendSubHeader(sender, this);
+        this.displayHandler.sendBody(sender, this, formattedContent);
+    }
+
+    /**
+     * @return Gets the header to display.
+     */
+    public String getHeader() {
+        return header;
+    }
+
+    /**
+     * Sets the header text.
+     */
+    public void setHeader(@NotNull String header) {
+        this.header = header;
+    }
+
+    /**
+     * @return Gets the contents to display.
+     */
+    public T getContents() {
+        return contents;
+    }
+
+    /**
+     * @return Gets the message to display when no content is shown.
+     */
+    @NotNull
+    public String getEmptyMessage() {
+        return emptyMessage;
+    }
+
+    /**
+     * @return Gets the display handler that formats and sends content to sender.
+     */
+    @NotNull
+    public DisplayHandler<T> getDisplayHandler() {
+        return displayHandler;
+    }
+
+    /**
+     * @return Gets the color tool used.
+     */
+    @NotNull
+    public ColorTool getColorTool() {
+        return colorTool;
+    }
+
+    /**
+     * @return Gets the filter used.
+     */
+    @NotNull
+    public ContentFilter getFilter() {
+        return filter;
+    }
+
+    /**
+     * Gets the value for a given setting option.
+     *
+     * @param setting   The setting option.
+     * @param <S>       The setting type.
+     * @return Value set for the given setting.
+     */
+    public <S> S getSetting(@NotNull DisplaySetting<S> setting) {
+        return (S) settingsMap.getOrDefault(setting, setting.defaultValue());
+    }
+
+    /**
+     * Sets other specific settings that may be used by the {@link DisplayHandler}.
+     *
+     * @param setting   The settings option.
+     * @param value     The value to set.
+     * @param <S>       The type of setting.
+     */
+    public <S> void setSetting(@NotNull DisplaySetting<S> setting, S value) {
+        this.settingsMap.put(setting, value);
+    }
+
+    /**
+     * Builds a {@link ContentDisplay}.
+     *
+     * @param <T>   Type of content to display.
+     */
+    public static class Builder<T> {
+
+        private final ContentDisplay<T> display;
+
+        private Builder(T content) {
+            this.display = new ContentDisplay<>(content);
+        }
+
+        /**
+         * Sets header to be displayed.
+         *
+         * @param header        The header text.
+         * @param replacements  String formatting replacements.
+         * @return The builder.
+         */
+        @NotNull
+        public Builder<T> header(@NotNull String header, Object...replacements) {
+            this.display.header = String.format(header, replacements);
+            return this;
+        }
+
+        /**
+         * Sets the message to show when no content is available for display.
+         *
+         * @param emptyMessage  The message text.
+         * @param replacements  String formatting replacements.
+         * @return The builder.
+         */
+        @NotNull
+        public Builder<T> emptyMessage(@NotNull String emptyMessage, Object...replacements) {
+            this.display.emptyMessage = String.format(emptyMessage, replacements);
+            return this;
+        }
+
+        /**
+         * Sets the display handler that does the formatting and sending of content. <b>Required.</b>
+         *
+         * @param displayHandler    The display handler for the given content type.
+         * @return The builder.
+         */
+        @NotNull
+        public Builder<T> displayHandler(@NotNull DisplayHandler<T> displayHandler) {
+            this.display.displayHandler = displayHandler;
+            return this;
+        }
+
+        /**
+         * Sets the color tool used to make messages more colourful.
+         *
+         * @param colorTool The color tool to use.
+         * @return The builder.
+         */
+        @NotNull
+        public Builder<T> colorTool(@NotNull ColorTool colorTool) {
+            this.display.colorTool = colorTool;
+            return this;
+        }
+
+        /**
+         * Sets content filter used to match specific content to be displayed.
+         *
+         * @param filter    The filter to use.
+         * @return The builder.
+         */
+        @NotNull
+        public Builder<T> filter(@NotNull ContentFilter filter) {
+            this.display.filter = filter;
+            return this;
+        }
+
+        /**
+         * Sets other specific settings that may be used by the {@link DisplayHandler}.
+         *
+         * @param setting   The settings option.
+         * @param value     The value to set.
+         * @param <S>       The type of setting.
+         * @return The builder.
+         */
+        @NotNull
+        public <S> Builder<T> setting(@NotNull DisplaySetting<S> setting, S value) {
+            this.display.settingsMap.put(setting, value);
+            return this;
+        }
+
+        /**
+         * Validates and build the content display.
+         *
+         * @return The content display.
+         */
+        @NotNull
+        public ContentDisplay<T> build() {
+            Objects.requireNonNull(this.display.displayHandler);
+            return this.display;
+        }
+
+        /**
+         * Build and show the content to the sender.
+         *
+         * @param sender The CommandSender to show the display to.
+         */
+        public void show(CommandSender sender) {
+            this.build().show(sender);
+        }
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/ContentFilter.java

@@ -0,0 +1,153 @@
+package com.onarandombox.MultiverseCore.display;
+
+import com.dumptruckman.minecraft.util.Logging;
+import org.bukkit.ChatColor;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
+
+/**
+ * <p>Filter content and text based on regex matching.</p>
+ *
+ * <p>Compile regex pattern based on {@link ContentFilter#filterString}. When prefixed with 'r=',
+ * use {@link ContentFilter#filterString} as the full regex pattern. Else, set to any match that
+ * contains the {@link ContentFilter#filterString}.<p>
+ */
+public class ContentFilter {
+
+    public static final ContentFilter DEFAULT = new ContentFilter();
+    private static final Pattern REGEX_SPECIAL_CHARS = Pattern.compile("[.+*?\\[^\\]$(){}=!<>|:-\\\\]");
+
+    private String filterString;
+    private Pattern filterPattern;
+    private boolean exactMatch;
+
+    private ContentFilter() {
+    }
+
+    /**
+     * @param filterString  The text to do matching, either plaintext or regex.
+     */
+    public ContentFilter(@NotNull String filterString) {
+        this(filterString, false);
+    }
+
+    /**
+     * @param filterString  The text to do matching, else plaintext or regex.
+     * @param exactMatch    Should check for exact match when doing regex matching.
+     */
+    public ContentFilter(@NotNull String filterString,
+                         boolean exactMatch) {
+
+        this.filterString = filterString;
+        this.exactMatch = exactMatch;
+        parseFilter();
+    }
+
+    private void parseFilter() {
+        if (filterString == null) {
+            return;
+        }
+        if (filterString.startsWith("r=")) {
+            convertToMatcher(filterString.substring(2));
+            return;
+        }
+        String cleanedFilter = REGEX_SPECIAL_CHARS.matcher(filterString.toLowerCase()).replaceAll("\\\\$0");
+        convertToMatcher("(?i).*" + cleanedFilter + ".*");
+    }
+
+    /**
+     * Compile and store the regex into a {@link Pattern}.
+     *
+     * @param regex The regex text.
+     */
+    private void convertToMatcher(@NotNull String regex) {
+        try {
+            this.filterPattern = Pattern.compile(regex);
+            Logging.finest("Parsed regex pattern: %s", this.filterPattern.toString());
+        }
+        catch (PatternSyntaxException ignored) {
+            Logging.warning("Error parsing regex: %s", filterString);
+        }
+    }
+
+    /**
+     * Do regex matching.
+     *
+     * @param text String to check regex on.
+     * @return True of matches regex pattern, false otherwise.
+     */
+    public boolean checkMatch(@Nullable Object text) {
+        if (!hasFilter()) {
+            return true;
+        }
+        if (text == null || !hasValidPattern()) {
+            return false;
+        }
+        text = ChatColor.stripColor(String.valueOf(text));
+        return (exactMatch)
+                ? filterPattern.matcher((CharSequence) text).matches()
+                : filterPattern.matcher((CharSequence) text).find();
+    }
+
+    /**
+     * Checks if a filter string is present.
+     *
+     * @return True if there is a filter string, else false.
+     */
+    public boolean hasFilter() {
+        return filterString != null;
+    }
+
+    /**
+     * Checks if regex pattern syntax is valid.
+     *
+     * @return True if valid, else false.
+     */
+    public boolean hasValidPattern() {
+        return filterPattern != null;
+    }
+
+    /**
+     * @return The filter string.
+     */
+    @Nullable
+    public String getString() {
+        return filterString;
+    }
+
+    /**
+     * @return The regex pattern.
+     */
+    @Nullable
+    public Pattern getPattern() {
+        return filterPattern;
+    }
+
+    /**
+     * @return True if filter is set to do exact matching, else false.
+     */
+    public boolean isExactMatch() {
+        return exactMatch;
+    }
+
+    /**
+     * Nicely format the filter string to be used for showing the sender.
+     *
+     * @return The formatted filter string.
+     */
+    public @NotNull String getFormattedString() {
+        return String.format("%sFilter: '%s'", ChatColor.ITALIC, filterString);
+    }
+
+    @Override
+    public String toString() {
+        return "ContentFilter{" +
+                "filterString='" + filterString + '\'' +
+                ", filterPattern=" + filterPattern +
+                ", exactMatch=" + exactMatch +
+                '}';
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/DisplayFormatException.java

@@ -0,0 +1,25 @@
+package com.onarandombox.MultiverseCore.display;
+
+/**
+ * Thrown when an issue occur while formatting content.
+ */
+public class DisplayFormatException extends Exception {
+    public DisplayFormatException() {
+    }
+
+    public DisplayFormatException(String message) {
+        super(message);
+    }
+
+    public DisplayFormatException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public DisplayFormatException(Throwable cause) {
+        super(cause);
+    }
+
+    public DisplayFormatException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/DisplayHandler.java

@@ -0,0 +1,68 @@
+package com.onarandombox.MultiverseCore.display;
+
+import com.google.common.base.Strings;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+
+/**
+ * Handles the formatting and sending of all content by the {@link ContentDisplay}.
+ *
+ * @param <T>   Type of content to display.
+ */
+@FunctionalInterface
+public interface DisplayHandler<T> {
+
+    /**
+     * Formats the raw content into a {@link Collection<String>} for displaying to the given sender.
+     *
+     * @param sender The {@link CommandSender} who will the content will be displayed to.
+     * @param display The responsible {@link ContentDisplay}.
+     * @return The formatted content.
+     * @throws DisplayFormatException Issue occurred while formatting content. E.g. invalid page.
+     */
+    Collection<String> format(@NotNull CommandSender sender, @NotNull ContentDisplay<T> display)
+            throws DisplayFormatException;
+
+    /**
+     * Sends the header.
+     *
+     * @param sender The {@link CommandSender} who will the header will be displayed to.
+     * @param display The responsible {@link ContentDisplay}.
+     */
+    default void sendHeader(@NotNull CommandSender sender, @NotNull ContentDisplay<T> display) {
+        if (!Strings.isNullOrEmpty(display.getHeader())) {
+            sender.sendMessage(display.getHeader());
+        }
+    }
+
+    /**
+     * Sends info such as filter and page.
+     *
+     * @param sender The {@link CommandSender} who will the sub header will be displayed to.
+     * @param display The responsible {@link ContentDisplay}.
+     */
+    default void sendSubHeader(@NotNull CommandSender sender, @NotNull ContentDisplay<T> display) {
+        if (display.getFilter().hasFilter()) {
+            sender.sendMessage(String.format("%s[ %s ]", ChatColor.GRAY, display.getFilter().getFormattedString()));
+        }
+    }
+
+    /**
+     * Sends the content.
+     *
+     * @param sender The {@link CommandSender} who will the body will be displayed to.
+     * @param display The responsible {@link ContentDisplay}.
+     * @param formattedContent The content after being formatted by {@link #format(CommandSender, ContentDisplay)}
+     */
+    default void sendBody(@NotNull CommandSender sender, @NotNull ContentDisplay<T> display,
+                          Collection<String> formattedContent) {
+        if (formattedContent == null || formattedContent.size() == 0) {
+            sender.sendMessage(display.getEmptyMessage());
+            return;
+        }
+        sender.sendMessage(formattedContent.toArray(new String[0]));
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/DisplayHandlers.java

@@ -0,0 +1,47 @@
+package com.onarandombox.MultiverseCore.display;
+
+import com.onarandombox.MultiverseCore.display.handlers.InlineListDisplayHandler;
+import com.onarandombox.MultiverseCore.display.handlers.InlineMapDisplayHandler;
+import com.onarandombox.MultiverseCore.display.handlers.ListDisplayHandler;
+import com.onarandombox.MultiverseCore.display.handlers.PagedListDisplayHandler;
+import com.onarandombox.MultiverseCore.display.settings.InlineDisplaySettings;
+import com.onarandombox.MultiverseCore.display.settings.PagedDisplaySettings;
+import com.onarandombox.MultiverseCore.display.settings.MapDisplaySettings;
+
+import java.util.Collection;
+import java.util.Map;
+
+/**
+ * Various implementations of {@link DisplayHandler}.
+ */
+public class DisplayHandlers {
+
+    /**
+     * Standard list display.
+     *
+     * Supported settings: none.
+     */
+    public static final DisplayHandler<Collection<String>> LIST = new ListDisplayHandler();
+
+    /**
+     * List display with paging.
+     *
+     * Supported settings: {@link PagedDisplaySettings#SHOW_PAGE}, {@link PagedDisplaySettings#LINES_PER_PAGE},
+     * {@link PagedDisplaySettings#PAGE_IN_CONSOLE}, {@link PagedDisplaySettings#DO_END_PADDING}.
+     */
+    public static final DisplayHandler<Collection<String>> PAGE_LIST = new PagedListDisplayHandler();
+
+    /**
+     * Display a list inline.
+     *
+     * Supported settings: {@link InlineDisplaySettings#SEPARATOR}.
+     */
+    public static final DisplayHandler<Collection<String>> INLINE_LIST = new InlineListDisplayHandler();
+
+    /**
+     * Display key value pair inline.
+     *
+     * Supported settings: {@link InlineDisplaySettings#SEPARATOR}, {@link MapDisplaySettings#OPERATOR}.
+     */
+    public static final DisplayHandler<Map<String, Object>> INLINE_MAP = new InlineMapDisplayHandler();
+}

src/main/java/com/onarandombox/MultiverseCore/display/handlers/InlineListDisplayHandler.java

@@ -0,0 +1,36 @@
+package com.onarandombox.MultiverseCore.display.handlers;
+
+import com.onarandombox.MultiverseCore.display.ContentDisplay;
+import com.onarandombox.MultiverseCore.display.DisplayFormatException;
+import com.onarandombox.MultiverseCore.display.DisplayHandler;
+import com.onarandombox.MultiverseCore.display.settings.InlineDisplaySettings;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+
+public class InlineListDisplayHandler implements DisplayHandler<Collection<String>> {
+
+    @Override
+    public Collection<String> format(@NotNull CommandSender sender, @NotNull ContentDisplay<Collection<String>> display)
+            throws DisplayFormatException {
+        StringBuilder builder = new StringBuilder();
+        String separator = display.getSetting(InlineDisplaySettings.SEPARATOR);
+
+        for (Iterator<String> iterator = display.getContents().iterator(); iterator.hasNext(); ) {
+            String content = iterator.next();
+            if (!display.getFilter().checkMatch(content)) {
+                continue;
+            }
+            builder.append(display.getColorTool().get()).append(content);
+            if (iterator.hasNext()) {
+                builder.append(separator);
+            }
+        }
+        return (builder.length() == 0)
+                ? Collections.singletonList(display.getEmptyMessage())
+                : Collections.singleton(builder.toString());
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/handlers/InlineMapDisplayHandler.java

@@ -0,0 +1,44 @@
+package com.onarandombox.MultiverseCore.display.handlers;
+
+import com.onarandombox.MultiverseCore.display.ContentDisplay;
+import com.onarandombox.MultiverseCore.display.DisplayFormatException;
+import com.onarandombox.MultiverseCore.display.DisplayHandler;
+import com.onarandombox.MultiverseCore.display.settings.InlineDisplaySettings;
+import com.onarandombox.MultiverseCore.display.settings.MapDisplaySettings;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.Map;
+
+public class InlineMapDisplayHandler implements DisplayHandler<Map<String, Object>> {
+
+    @Override
+    public Collection<String> format(@NotNull CommandSender sender,
+                                     @NotNull ContentDisplay<Map<String, Object>> display)
+            throws DisplayFormatException {
+        StringBuilder builder = new StringBuilder();
+        String separator = display.getSetting(InlineDisplaySettings.SEPARATOR);
+        String operator = display.getSetting(MapDisplaySettings.OPERATOR);
+
+        for (Iterator<Map.Entry<String, Object>> iterator = display.getContents().entrySet().iterator(); iterator.hasNext(); ) {
+            Map.Entry<String, Object> entry = iterator.next();
+            if (!display.getFilter().checkMatch(entry.getKey()) && !display.getFilter().checkMatch(entry.getValue())) {
+                continue;
+            }
+            builder.append(display.getColorTool().get())
+                    .append(entry.getKey())
+                    .append(operator)
+                    .append(display.getColorTool().get())
+                    .append(entry.getValue());
+            if (iterator.hasNext()) {
+                builder.append(separator);
+            }
+        }
+        return (builder.length() == 0)
+                ? Collections.singletonList(display.getEmptyMessage())
+                : Collections.singleton(builder.toString());
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/handlers/ListDisplayHandler.java

@@ -0,0 +1,22 @@
+package com.onarandombox.MultiverseCore.display.handlers;
+
+import com.onarandombox.MultiverseCore.display.ContentDisplay;
+import com.onarandombox.MultiverseCore.display.DisplayFormatException;
+import com.onarandombox.MultiverseCore.display.DisplayHandler;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.stream.Collectors;
+
+public class ListDisplayHandler implements DisplayHandler<Collection<String>> {
+
+    @Override
+    public Collection<String> format(@NotNull CommandSender sender, @NotNull ContentDisplay<Collection<String>> display)
+            throws DisplayFormatException {
+        return display.getContents().stream()
+                .filter(display.getFilter()::checkMatch)
+                .map(s -> (ContentDisplay.LINE_BREAK.equals(s)) ? "" : display.getColorTool().get() + s)
+                .collect(Collectors.toList());
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/handlers/PagedListDisplayHandler.java

@@ -0,0 +1,105 @@
+package com.onarandombox.MultiverseCore.display.handlers;
+
+import com.onarandombox.MultiverseCore.display.ContentDisplay;
+import com.onarandombox.MultiverseCore.display.DisplayFormatException;
+import com.onarandombox.MultiverseCore.display.settings.PagedDisplaySettings;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.stream.IntStream;
+
+public class PagedListDisplayHandler extends ListDisplayHandler {
+
+    @Override
+    public Collection<String> format(@NotNull CommandSender sender, @NotNull ContentDisplay<Collection<String>> display)
+            throws DisplayFormatException {
+        if (dontNeedPaging(sender, display)) {
+            return super.format(sender, display);
+        }
+
+        int pages = 1;
+        int currentLength = 0;
+        int targetPage = display.getSetting(PagedDisplaySettings.SHOW_PAGE);
+        int linesPerPage = display.getSetting(PagedDisplaySettings.LINES_PER_PAGE);
+        List<String> content = new ArrayList<>(linesPerPage);
+
+        // Calculate the paging.
+        for (String line : display.getContents()) {
+            if (!display.getFilter().checkMatch(line)) {
+                continue;
+            }
+            // When it's the next page.
+            boolean isLineBreak = ContentDisplay.LINE_BREAK.equals(line);
+            if (isLineBreak || ++currentLength > linesPerPage) {
+                pages++;
+                currentLength = 0;
+                if (isLineBreak) {
+                    continue;
+                }
+            }
+            if (pages == targetPage) {
+                // Let first line be the header when no header is defined.
+                if (display.getHeader() == null) {
+                    display.setHeader(line);
+                    currentLength--;
+                    continue;
+                }
+                content.add(display.getColorTool().get() + line);
+            }
+        }
+
+        // Page out of range.
+        if (targetPage < 1 || targetPage > pages) {
+            if (pages == 1) {
+                throw new DisplayFormatException("There is only 1 page!");
+            }
+            throw new DisplayFormatException("Please enter a page from 1 to " + pages + ".");
+        }
+
+        // No content
+        if (content.size() == 0) {
+            content.add(display.getEmptyMessage());
+        }
+
+        // Add empty lines to make output length consistent.
+        if (display.getSetting(PagedDisplaySettings.DO_END_PADDING)) {
+            IntStream.range(0, linesPerPage - content.size()).forEach(i -> content.add(""));
+        }
+        display.setSetting(PagedDisplaySettings.TOTAL_PAGE, pages);
+
+        return content;
+    }
+
+    @Override
+    public void sendSubHeader(@NotNull CommandSender sender, @NotNull ContentDisplay<Collection<String>> display) {
+        if (dontNeedPaging(sender, display)) {
+            super.sendSubHeader(sender, display);
+            return;
+        }
+
+        if (display.getFilter().hasFilter()) {
+            sender.sendMessage(String.format("%s[ Page %s of %s, %s ]",
+                    ChatColor.GRAY,
+                    display.getSetting(PagedDisplaySettings.SHOW_PAGE),
+                    display.getSetting(PagedDisplaySettings.TOTAL_PAGE),
+                    display.getFilter().getFormattedString())
+            );
+            return;
+        }
+        sender.sendMessage(String.format("%s[ Page %s of %s ]",
+                ChatColor.GRAY,
+                display.getSetting(PagedDisplaySettings.SHOW_PAGE),
+                display.getSetting(PagedDisplaySettings.TOTAL_PAGE))
+        );
+    }
+
+    private boolean dontNeedPaging(CommandSender sender, ContentDisplay<Collection<String>> display) {
+        return sender instanceof ConsoleCommandSender
+                && !display.getSetting(PagedDisplaySettings.PAGE_IN_CONSOLE);
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/display/settings/DisplaySetting.java

@@ -0,0 +1,19 @@
+package com.onarandombox.MultiverseCore.display.settings;
+
+import com.onarandombox.MultiverseCore.display.DisplayHandler;
+
+/**
+ * Represents a setting option that can be used by {@link DisplayHandler}.
+ *
+ * @param <T>
+ */
+@FunctionalInterface
+public interface DisplaySetting<T> {
+
+     /**
+      * Gets the default value of this Display Setting.
+      *
+      * @return The default value.
+      */
+     T defaultValue();
+}

src/main/java/com/onarandombox/MultiverseCore/display/settings/InlineDisplaySettings.java

@@ -0,0 +1,15 @@
+package com.onarandombox.MultiverseCore.display.settings;
+
+import com.onarandombox.MultiverseCore.display.DisplayHandler;
+import org.bukkit.ChatColor;
+
+/**
+ * Collection of {@link DisplaySetting} that are used by various {@link DisplayHandler}.
+ */
+public class InlineDisplaySettings {
+
+    /**
+     * Inline separator. E.g. '1, 2, 3'
+     */
+    public static final DisplaySetting<String> SEPARATOR = () -> ChatColor.WHITE + ", ";
+}

src/main/java/com/onarandombox/MultiverseCore/display/settings/MapDisplaySettings.java

@@ -0,0 +1,15 @@
+package com.onarandombox.MultiverseCore.display.settings;
+
+import com.onarandombox.MultiverseCore.display.DisplayHandler;
+import org.bukkit.ChatColor;
+
+/**
+ * Collection of {@link DisplaySetting} that are used by various {@link DisplayHandler}.
+ */
+public class MapDisplaySettings {
+
+    /**
+     * The thing between a key value pair. E.g. 'Me = Smart'
+     */
+    public static final DisplaySetting<String> OPERATOR = () -> ChatColor.WHITE + " = ";
+}

src/main/java/com/onarandombox/MultiverseCore/display/settings/PagedDisplaySettings.java

@@ -0,0 +1,30 @@
+package com.onarandombox.MultiverseCore.display.settings;
+
+public class PagedDisplaySettings {
+
+    /**
+     * Page to display.
+     */
+    public static final DisplaySetting<Integer> SHOW_PAGE = () -> 1;
+
+    /**
+     * Total pages available to display.
+     */
+    public static final DisplaySetting<Integer> TOTAL_PAGE = () -> 1;
+
+    /**
+     * The max number of lines per page. This excludes header.
+     */
+    public static final DisplaySetting<Integer> LINES_PER_PAGE = () -> 8;
+
+    /**
+     * Should add empty lines if content lines shown is less that {@link #LINES_PER_PAGE}.
+     */
+    public static final DisplaySetting<Boolean> DO_END_PADDING = () -> true;
+
+    /**
+     * Should display with paging when it's sent to console.
+     */
+    public static final DisplaySetting<Boolean> PAGE_IN_CONSOLE = () -> false;
+
+}

src/main/java/com/onarandombox/MultiverseCore/enums/RespawnType.java

@@ -0,0 +1,7 @@
+package com.onarandombox.MultiverseCore.enums;
+
+public enum RespawnType {
+    BED,
+    ANCHOR,
+    OTHER
+}

src/main/java/com/onarandombox/MultiverseCore/event/MVDebugModeEvent.java

@@ -0,0 +1,43 @@
+package com.onarandombox.MultiverseCore.event;
+
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+
+/**
+ * Called when Core's debug level is changed.
+ */
+public class MVDebugModeEvent extends Event {
+
+    private static final HandlerList HANDLERS = new HandlerList();
+
+    private final int level;
+
+    public MVDebugModeEvent(int level) {
+        this.level = level;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLERS;
+    }
+
+    /**
+     * Gets the handler list. This is required by the event system.
+     * @return A list of HANDLERS.
+     */
+    public static HandlerList getHandlerList() {
+        return HANDLERS;
+    }
+
+    /**
+     * Returns the current debug level of Core.
+     *
+     * @return the current debug level of Core.
+     */
+    public int getLevel() {
+        return level;
+    }
+}

src/main/java/com/onarandombox/MultiverseCore/event/MVVersionEvent.java

@@ -1,17 +1,29 @@
 package com.onarandombox.MultiverseCore.event;
 
+import com.dumptruckman.minecraft.util.Logging;
 import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
 /**
  * Called when somebody requests version information about Multiverse.
  */
 public class MVVersionEvent extends Event {
 
     private final StringBuilder versionInfoBuilder;
+    private final Map<String, String> detailedVersionInfo;
 
-    public MVVersionEvent(String versionInfo) {
-        this.versionInfoBuilder = new StringBuilder(versionInfo);
+    public MVVersionEvent() {
+        versionInfoBuilder = new StringBuilder();
+        detailedVersionInfo = new HashMap<>();
     }
 
     private static final HandlerList HANDLERS = new HandlerList();
@@ -40,6 +52,21 @@ public class MVVersionEvent extends Event {
         return this.versionInfoBuilder.toString();
     }
 
+    /**
+     * Gets the key/value pair of the detailed version info.
+     *
+     * This information is used for advanced paste services that would prefer
+     * to get the information as several files. Examples include config.yml or
+     * portals.yml. Note that the map returned is immutable.
+     *
+     * The keys are filenames, the values are the contents of the files.
+     *
+     * @return The immutable key value mapping of files and the contents of those files.
+     */
+    public Map<String, String> getDetailedVersionInfo() {
+        return Collections.unmodifiableMap(this.detailedVersionInfo);
+    }
+
     /**
      * Appends more version-info to the version-info currently saved in this event.
      * @param moreVersionInfo The version-info to add. Should end with '\n'.
@@ -47,4 +74,46 @@ public class MVVersionEvent extends Event {
     public void appendVersionInfo(String moreVersionInfo) {
         this.versionInfoBuilder.append(moreVersionInfo);
     }
+
+    private String readFile(final String filename) {
+        StringBuilder result;
+
+        try {
+            FileReader reader = new FileReader(filename);
+            BufferedReader bufferedReader = new BufferedReader(reader);
+            String line;
+            result = new StringBuilder();
+            while ((line = bufferedReader.readLine()) != null) {
+                result.append(line).append("\n");
+            }
+        } catch (FileNotFoundException e) {
+            Logging.severe("Unable to find %s. Here's the traceback: %s", filename, e.getMessage());
+            e.printStackTrace();
+            result = new StringBuilder(String.format("ERROR: Could not load: %s", filename));
+        } catch (IOException e) {
+            Logging.severe("Something bad happend when reading %s. Here's the traceback: %s", filename, e.getMessage());
+            e.printStackTrace();
+            result = new StringBuilder(String.format("ERROR: Could not load: %s", filename));
+        }
+
+        return result.toString();
+    }
+
+    /**
+     * Adds a file to to the detailed version-info currently saved in this event.
+     * @param fileName The name of the file.
+     * @param contents The contents of the file.
+     */
+    public void putDetailedVersionInfo(String fileName, String contents) {
+        this.detailedVersionInfo.put(fileName, contents);
+    }
+
+    /**
+     * Adds a file to to the detailed version-info currently saved in this event.
+     * @param filename The name of the file.
+     * @param file     The file.
+     */
+    public void putDetailedVersionInfo(String filename, File file) {
+        this.putDetailedVersionInfo(filename, readFile(file.getAbsolutePath()));
+    }
 }

src/main/java/com/onarandombox/MultiverseCore/listeners/MVAsyncPlayerChatListener.java

@@ -9,6 +9,7 @@ package com.onarandombox.MultiverseCore.listeners;
 
 import java.util.logging.Level;
 
+import com.dumptruckman.minecraft.util.Logging;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.player.AsyncPlayerChatEvent;
 
@@ -20,7 +21,7 @@ import com.onarandombox.MultiverseCore.MultiverseCore;
 public class MVAsyncPlayerChatListener extends MVChatListener {
     public MVAsyncPlayerChatListener(MultiverseCore plugin, MVPlayerListener playerListener) {
         super(plugin, playerListener);
-        plugin.log(Level.FINE, "Created AsyncPlayerChatEvent listener.");
+        Logging.fine("Created AsyncPlayerChatEvent listener.");
     }
 
     /**