Revert to getHitBlockPosition()

Reduce redundancy and fix block check
Initial offground synchronization commit
2024-10-26 16:09:08 -05:00 · 2024-10-26 15:21:10 -05:00 · 2024-10-26 14:40:40 -04:00 · 2024-10-26 14:40:38 -04:00 · 2024-10-26 12:47:04 -04:00 · 2024-10-26 05:08:54 -04:00
149 changed files with 8023 additions and 1501 deletions
@@ -0,0 +1,238 @@
+name: Build and Version Update
+
+permissions:
+  contents: write
+
+on:
+  push:
+    branches:
+      - main
+      - merge
+      - dev
+      - fabric-experimental-gradle
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout main repository
+        uses: actions/checkout@v2
+
+      - name: Set up JDK
+        uses: actions/setup-java@v2
+        with:
+          java-version: '21'
+          distribution: 'adopt'
+          cache: gradle
+
+      - name: Setup Gradle
+        uses: gradle/gradle-build-action@v2
+        with:
+          gradle-version: 8.8
+
+      # Temporary workaround to packetevents bugs, use custom fork build
+      - name: Checkout packetevents repository
+        uses: actions/checkout@v3
+        with:
+          repository: Axionize/packetevents
+          ref: 2.0-fabric-serverside-fix
+          path: packetevents
+
+      - name: Update version in packetevents
+        run: |
+          cd packetevents
+          sed -i 's/val fullVersion = ".*"/val fullVersion = "2.5.8"/' build.gradle.kts
+
+      - name: Build packetevents with Gradle
+        run: |
+          cd packetevents
+          gradle build -x test
+
+      - name: Publish packetevents to Maven Local
+        run: |
+          cd packetevents
+          gradle publishToMavenLocal
+
+      - name: Generate build number
+        id: buildnumber
+        uses: einaregilsson/build-number@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Update version in build.gradle.kts
+        id: update_version
+        run: |
+          # Read current fullVersion from build.gradle.kts
+          FULL_VERSION=$(grep 'val fullVersion =' build.gradle.kts | awk -F '"' '{print $2}')
+          IFS='.' read -ra VERSION_PARTS <<< "$FULL_VERSION"
+          PATCH=$((VERSION_PARTS[2] + 1))
+          NEW_VERSION="${VERSION_PARTS[0]}.${VERSION_PARTS[1]}.$PATCH-dev-b${{ steps.buildnumber.outputs.build_number }}"
+          echo "NEW_VERSION=${NEW_VERSION}" >> $GITHUB_ENV
+          
+          # Update fullVersion in build.gradle
+          sed -i "s/val fullVersion = \".*\"/val fullVersion = \"$NEW_VERSION\"/" build.gradle.kts
+          
+          # Ensure snapshot is set to false
+          sed -i "s/val snapshot = .*/val snapshot = false/" build.gradle.kts
+
+      - name: Build with Gradle
+        run: gradle clean build -x test
+        env:
+          GITHUB_REPOSITORY: ${{ github.repository }}
+
+      - name: Rename shaded jar to overwrite non-shaded jar
+        run: mv bukkit/build/libs/knockbacksync-bukkit-${{ env.NEW_VERSION }}-all.jar bukkit/build/libs/knockbacksync-bukkit-${{ env.NEW_VERSION }}.jar
+
+      # Download PaperSpigot (Choose version for reproducibility
+      - name: Download PaperSpigot
+        run: |
+          mkdir -p paper-server/plugins
+          curl -o paperclip.jar https://api.papermc.io/v2/projects/paper/versions/1.21.1/builds/120/downloads/paper-1.21.1-120.jar 
+          mv paperclip.jar paper-server/
+
+      # Copy Plugin into Plugins Folder and Start Server
+      - name: Copy Plugin and Start Paper Server
+        run: |
+          cp bukkit/build/libs/knockbacksync-bukkit-${{ env.NEW_VERSION }}.jar paper-server/plugins/
+          cd paper-server
+          # Start the server to remap the plugin
+          timeout 60 java -Xms3G -Xmx3G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -jar -Dcom.mojang.eula.agree=true paperclip.jar --nogui || true
+
+      # Get the Hashes of the Original and Remapped JARs
+      - name: Calculate Hashes
+        run: |
+          # Calculate hash for the original JAR
+          ORIGINAL_HASH=$(sha256sum bukkit/build/libs/knockbacksync-bukkit-${{ env.NEW_VERSION }}.jar | awk '{print $1}')
+          echo "ORIGINAL_HASH=$ORIGINAL_HASH" >> $GITHUB_ENV
+          # Calculate hash for the remapped JAR
+          REMAPPED_HASH=$(sha256sum paper-server/plugins/.paper-remapped/knockbacksync-bukkit-${{ env.NEW_VERSION }}.jar | awk '{print $1}')
+          echo "REMAPPED_HASH=$REMAPPED_HASH" >> $GITHUB_ENV
+          # Calculate hash for the remapped JAR
+          FABRIC_HASH=$(sha256sum fabric/build/libs/knockbacksync-fabric-${{ env.NEW_VERSION }}.jar | awk '{print $1}')
+          echo "FABRIC_HASH=$FABRIC_HASH" >> $GITHUB_ENV
+
+      # Download, update, and re-upload dev-builds.txt
+      - name: Update dev-builds.txt
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          # Download the current dev-builds.txt
+          curl -L -o dev-builds.txt https://github.com/${{ github.repository }}/releases/latest/download/dev-builds.txt
+          
+          # Create a copy of the original file
+          cp dev-builds.txt dev-builds.txt.original
+          
+          # Ensure the file ends with a newline
+          sed -i -e '$a\' dev-builds.txt
+          
+          # Function to add hash if it doesn't exist
+          add_hash_if_new() {
+            if ! grep -q "$1" dev-builds.txt; then
+              echo "$1" >> dev-builds.txt
+            fi
+          }
+          
+          # Add new hashes if they don't exist
+          add_hash_if_new "${{ env.ORIGINAL_HASH }}"
+          add_hash_if_new "${{ env.REMAPPED_HASH }}"
+          add_hash_if_new "${{ env.FABRIC_HASH }}"
+          
+          # Check if the file has changed
+          if cmp -s dev-builds.txt dev-builds.txt.original; then
+            echo "No changes to dev-builds.txt, skipping upload."
+          else
+            echo "Changes detected in dev-builds.txt, uploading new version."
+          
+            # Get the latest release ID
+            RELEASE_ID=$(curl -s "https://api.github.com/repos/${{ github.repository }}/releases/latest" | jq -r .id)
+          
+            # Delete the old dev-builds.txt asset
+            ASSET_ID=$(curl -s -H "Authorization: token $GITHUB_TOKEN" \
+              "https://api.github.com/repos/${{ github.repository }}/releases/$RELEASE_ID/assets" | \
+              jq -r '.[] | select(.name == "dev-builds.txt") | .id')
+            if [ ! -z "$ASSET_ID" ]; then
+              curl -X DELETE -H "Authorization: token $GITHUB_TOKEN" \
+                "https://api.github.com/repos/${{ github.repository }}/releases/assets/$ASSET_ID"
+            fi
+          
+            # Upload the new dev-builds.txt
+            curl -X POST -H "Authorization: token $GITHUB_TOKEN" \
+              -H "Content-Type: application/octet-stream" \
+              --data-binary @dev-builds.txt \
+              "https://uploads.github.com/repos/${{ github.repository }}/releases/$RELEASE_ID/assets?name=dev-builds.txt"
+          fi
+          
+          # Clean up
+          rm dev-builds.txt.original
+
+      - name: Create artifacts directory
+        run: mkdir -p artifacts
+
+      - name: Copy bukkit artifact
+        run: cp bukkit/build/libs/knockbacksync-bukkit-${{ env.NEW_VERSION }}.jar artifacts/
+
+      - name: Copy fabric artifact
+        run: cp fabric/build/libs/knockbacksync-fabric-${{ env.NEW_VERSION }}.jar artifacts/
+
+      - name: Zip the artifacts
+        run: zip -r KnockbackSync-${{ env.NEW_VERSION }}.zip artifacts/*
+
+      - name: Upload artifacts zip
+        uses: actions/upload-artifact@v4
+        with:
+          name: KnockbackSync-${{ env.NEW_VERSION }}.zip
+          path: KnockbackSync-${{ env.NEW_VERSION }}.zip
+          retention-days: 90
+
+      - uses: Kir-Antipov/mc-publish@v3.3
+        with:
+          modrinth-id: ${{ vars.MODRINTH_ID  }}
+          modrinth-featured: true
+          modrinth-unfeature-mode: subset
+          modrinth-token: ${{ secrets.MODRINTH_TOKEN }}
+
+          files: |
+            bukkit/build/libs/knockbacksync-bukkit-${{ env.NEW_VERSION }}.jar
+
+          name: KnockbackSync-${{ env.NEW_VERSION }}
+          version: ${{ env.NEW_VERSION }}
+          version-type: alpha
+
+          loaders: |
+            bukkit
+            spigot
+            paper
+            folia
+            purpur
+
+          game-versions: |
+            >=1.12.2
+
+          retry-attempts: 2
+          retry-delay: 10000
+          fail-mode: fail
+
+      - uses: Kir-Antipov/mc-publish@v3.3
+        with:
+          modrinth-id: ${{ vars.MODRINTH_ID }}
+          modrinth-featured: true
+          modrinth-unfeature-mode: subset
+          modrinth-token: ${{ secrets.MODRINTH_TOKEN }}
+
+          files: |
+            fabric/build/libs/knockbacksync-fabric-${{ env.NEW_VERSION }}.jar
+
+          name: KnockbackSync-${{ env.NEW_VERSION }}
+          version: ${{ env.NEW_VERSION }}
+          version-type: alpha
+
+          loaders: |
+            fabric
+
+          game-versions: |
+            >=1.21
+
+          retry-attempts: 2
+          retry-delay: 10000
+          fail-mode: fail
@@ -0,0 +1,14 @@
+# Ignores all of the Intellij Project settings
+.idea/
+
+# Ignore maven reduced POM built when importing/packaging project
+dependency-reduced-pom.xml
+
+# Ignore maven build files
+target/
+
+
+.gradle/
+build/
+
+run/
@@ -1,674 +0,0 @@
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-
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-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.
@@ -0,0 +1,35 @@
+## Project Structure
+
+- `common` submodule contains shared code for all platforms.
+  - It contains the interfaces and abstractions for
+    - Permissions
+    - Scheduling
+    - Players
+    - Blocks
+    - Worlds/Levels
+    - The Server
+  - In addition to the interfaces, the code also contains the implementations for
+    - Commands
+      - Commands use incendio's `cloud` command system. All you have to do to add platform support is to create a CommandManager and call register(). 
+    - Handling Events
+    - Gathering Statistics
+- `fabric` contains code for latest fabric version (currently 1.21)
+- `bukkit` contains bukkit-specific code
+
+If you want to add support for a new platform, simply make a new submodule and implement the interfaces for.
+- Scheduling Tasks
+- Checking for Permissions
+- Listening for events and calling the right handler
+- Players + Blocks + World + Server
+- Metrics
+
+You will need to handle events when Players:
+- join/leave
+- are damaged
+- take velocity (knock back)
+
+If you find your platform is lacking events, take a look at how the PlayerVelocityEvent is implemented fabric for some direction of what to do
+
+
+## List of version and platform-specific caveats
+- Runnable and manual ping does not work on fabric right now due b/c packetevents. Ping measurement will be less accurate
@@ -5,6 +5,7 @@
      <configuration>
        <autoDetectTypes>
          <platformType>SPIGOT</platformType>
+          <platformType>ADVENTURE</platformType>
        </autoDetectTypes>
        <projectReimportVersion>1</projectReimportVersion>
      </configuration>
@@ -1,9 +1,14 @@
-Minecraft doesn’t factor in network latency when determining a player's actions on the server.
-This causes the server to receive outdated information that doesn’t reflect the player's clientside position.
-As a result, players take negative velocity when they're on the ground clientside, but not serverside.
+[![Get it on Modrinth](https://img.shields.io/badge/Get%20it%20on-Modrinth-green?style=for-the-badge&logo=modrinth)](https://modrinth.com/plugin/knockbacksync)

-This plugin handles knockback as if it were calculated clientside, ensuring that no player is at a disadvantage,
-regardless of their own or their opponent’s connection.
+Tired of inconsistent knockback ruining your PvP experience? Our plugin recalculates knockback as if it were done clientside, leveling the playing field and ensuring every player enjoys a fair fight, no matter their connection quality.
+
+Minecraft doesn’t factor in network latency when determining a player's actions on the server. This causes the server to receive outdated information that doesn’t reflect the player's clientside position, leading to varying knockback effects based on connection quality.
+
+This plugin intercepts and adjusts knockback calculations to match what would occur clientside, effectively mitigating the disadvantages caused by high latency. By synchronizing knockback handling, we ensure that players experience consistent and fair knockback, providing a balanced and competitive environment for all."
+
+Showcase: https://www.youtube.com/watch?v=SVokpr3v-TA
+
+Official Discord: https://discord.gg/nnpqpAtyVW

 ## Frequently Asked Questions (FAQ)

@@ -14,12 +19,151 @@ regardless of their own or their opponent’s connection.
 **Knockback control.** For example, it will be easier to escape crit chains and punish crit.

 ### Why was the configurability of ping offset removed?
-**It promotes consistency across all servers.** Extensive testing with top players has shown that an offset of 20 provides a balanced experience for everyone.
+**It promotes consistency across all servers.** Extensive testing with top players has shown that an offset of 25 provides a balanced experience for everyone.

 ### How do I change the ping offset?
-**You must run a modified build of KnockbackSync.** The variable can be changed inside of the [PlayerData](src/main/java/me/caseload/knockbacksync/manager/PlayerData.java) class.
+**You must run a modified build of KnockbackSync.** The variable can be changed inside of the [PlayerData](common/src/main/java/me/caseload/knockbacksync/player/PlayerData.java) class.
+
+## What servers are using this plugin?
+| IP               | Location                          | Region | Ping Offset | spike_threshold |
+|------------------|-----------------------------------|--------|-------------|-----------------|
+| `pvparcade.club` | Ashburn, Virginia, United States  | NA     | 20          | 15              |
+| `stray.gg`       | Ashburn, Virginia, United States  | NA     | 25          | 20              |
+| `eu.stray.gg`    | Frankfurt, Hesse, Germany         | EU     | 25          | 20              |
+| `valed.gg`       | Frankfurt, Hesse, Germany         | EU     | 25          | 20              |
+| `eu.catpvp.xyz`  | Frankfurt, Hesse, Germany         | EU     | 25          | 20              |
+| `as.catpvp.xyz`  | Singapore                         | AS     | 25          | 20              |
+| `na.catpvp.xyz`  | New York, New York, United States | NA     | 25          | 20              |
+| `hyperium.pl`    | Wrocław, Dolnośląskie, Poland     | EU     | 25          | 20              |
+
+## Commands
+---
+### /knockbacksync ping [target]
+
+**Description:**
+
+This command allows you to check the ping of a player, including jitter. If no target is specified, it will check your own ping.
+
+**Permissions:**
+
+* `knockbacksync.ping` (defaults to true for players)
+
+**Examples:**
+
+* `/knockbacksync ping`: Checks your own ping.
+* `/knockbacksync ping Steve`: Checks the ping of a player named Steve.
+
+**Output:**
+
+* If a pong packet has been received:  "Your last ping packet took [ping]ms. Jitter: [jitter]ms." or "[Player]'s last ping packet took [ping]ms. Jitter: [jitter]ms."
+* If a pong packet has not been received: "Pong not received. Your estimated ping is [estimated ping]ms." or "Pong not received. [Player]'s estimated ping is [estimated ping]ms."
+
+**Notes:**
+
+* The estimated ping is based on the player's platform reported ping.
+* Jitter represents the variation in ping over time.
+---
+### /knockbacksync status [target]
+
+**Description:**
+
+This command allows you to check the KnockbackSync status of a player or the server. If no target is specified, it will show both the global status and your own status.
+
+**Permissions:**
+
+* `knockbacksync.status.self` (defaults to true for players): Allows checking your own status.
+* `knockbacksync.status.other` (defaults to op only): Allows checking the status of other players.
+
+**Examples:**
+
+* `/knockbacksync status`: Shows the global status and your own status.
+* `/knockbacksync status Steve`: Shows the status of a player named Steve.
+
+**Output:**
+
+* **Global status:** "Global KnockbackSync status: [Enabled/Disabled]"
+* **Player status:** "[Player]'s KnockbackSync status: [Enabled/Disabled]" (or "Disabled (Global toggle is off)" if the global toggle is off)
+
+**Notes:**
+
+* The player status will be "Disabled" if the global toggle is off, even if the player has individually enabled KnockbackSync.
+* The messages displayed by this command are configurable in the `config.yml` file.
+---
+### /knockbacksync toggle [target]
+
+**Description:**
+
+This command allows you to toggle KnockbackSync for yourself, another player, or globally.
+
+**Permissions:**
+
+* `knockbacksync.toggle.self` (defaults to true for players): Allows toggling KnockbackSync for yourself.
+* `knockbacksync.toggle.other` (defaults to op only): Allows toggling KnockbackSync for other players.
+* `knockbacksync.toggle.global` (defaults to op only): Allows toggling KnockbackSync globally for the server.
+
+**Examples:**
+
+* `/knockbacksync toggle`: Toggles KnockbackSync globally (if you have permission) or for yourself.
+* `/knockbacksync toggle Steve`: Toggles KnockbackSync for a player named Steve.
+
+**Output:**
+
+* **Global toggle:** Sends a message indicating whether KnockbackSync has been enabled or disabled globally. The messages are configurable in the `config.yml` file.
+* **Player toggle:** Sends a message indicating whether KnockbackSync has been enabled or disabled for the specified player. The messages are configurable in the `config.yml` file.
+* **Ineligible player:** If a player is ineligible for KnockbackSync (e.g., due to permissions), a configurable message will be sent.
+* **KnockbackSync disabled:** If KnockbackSync is disabled globally and you try to toggle it for a player, a message will be sent indicating that KnockbackSync is disabled.
+
+**Notes:**
+
+* If KnockbackSync is disabled globally, toggling it for a player will have no effect until KnockbackSync is enabled globally.
+* Players can only toggle KnockbackSync for themselves if they have the `knockbacksync.toggle.self` permission.
+* Operators can toggle KnockbackSync for other players and globally.
+---
+### /knockbacksync reload
+
+**Description:**
+
+This command reloads the KnockbackSync plugin's configuration file.
+
+**Permissions:**
+
+* `knockbacksync.reload` (defaults to op only)
+
+**Examples:**
+* `/knockbacksync reload`
+
+**Output:**
+
+* Sends a message to the command sender indicating that the configuration has been reloaded. The message is configurable in the `config.yml` file.
+
+**Notes:**
+
+* This command is useful for applying changes made to the configuration file without restarting the server.
+---
+### /knockbacksync toggleoffground
+
+  **Description:**
+  
+  This command toggles the experimental off-ground knockback synchronization feature.
+  
+  **Permissions:**
+  
+  * `knockbacksync.toggleoffground` (defaults to op only)
+  
+  **Examples:**
+  
+  * `/knockbacksync toggleoffground`
+  
+  **Output:**
+  
+  * Sends a message indicating whether the experimental off-ground knockback synchronization has been enabled or disabled. The messages are configurable in the `config.yml` file.
+  
+  **Notes:**
+  
+  * **This command currently does not do anything as off-ground synchronization has yet to be implemented.**
+    * This feature is experimental and may not work as expected.

 ## License
 GNU General Public License v3.0 or later

-See [COPYING](COPYING) to see the full text.
+See [LICENSE](https://www.gnu.org/licenses/gpl-3.0.en.html) to see the full text.
@@ -0,0 +1,57 @@
+import java.io.ByteArrayOutputStream
+
+plugins {
+    id("java")
+    id("com.gradleup.shadow") version "8.3.3" apply false
+    id("fabric-loom") version "1.7.4" apply false
+}
+
+val fullVersion = "1.3.5"
+val snapshot = true
+val githubRepo = System.getenv("GITHUB_REPOSITORY") ?: project.findProperty("githubRepo").toString()
+
+allprojects {
+    fun getVersionMeta(includeHash: Boolean): String {
+        if (!snapshot) {
+            return ""
+        }
+        var commitHash = ""
+        if (includeHash && file(".git").isDirectory) {
+            val stdout = ByteArrayOutputStream()
+            exec {
+                commandLine("git", "rev-parse", "--short", "HEAD")
+                standardOutput = stdout
+            }
+            commitHash = "+${stdout.toString().trim()}"
+        }
+        return "$commitHash-SNAPSHOT"
+    }
+
+    group = "me.caseload.knockbacksync"
+    version = "$fullVersion${getVersionMeta(true)}"
+    ext["versionNoHash"] = "$fullVersion${getVersionMeta(false)}"
+    ext["githubRepo"] = githubRepo
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        maven("https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
+        maven("https://repo.codemc.io/repository/maven-releases/")
+        maven("https://repo.opencollab.dev/maven-snapshots/")
+        maven("https://repo.papermc.io/repository/maven-public/")
+        maven(url = "https://maven.fabricmc.net/") {
+            name = "Fabric"
+        }
+        maven("https://libraries.minecraft.net/")
+        maven("https://maven.neoforged.net/releases")
+    }
+}
+
+subprojects {
+    apply(plugin = "java")
+
+    java {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+}
@@ -0,0 +1,68 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+
+plugins {
+    id("com.gradleup.shadow")
+}
+
+base {
+    archivesName.set("${rootProject.property("archives_base_name")}-bukkit")
+}
+
+val shadeThisThing: Configuration by configurations.creating {
+    isCanBeConsumed = true
+    isTransitive = true
+}
+
+// TODO migrate to only including sources sets for compile, test and javadoc tasks
+tasks.withType<JavaCompile>().configureEach {
+    source(project(":common").sourceSets.main.get().allSource)
+}
+
+tasks.withType<Javadoc>().configureEach {
+    source(project(":common").sourceSets.main.get().allJava)
+}
+
+tasks.named<JavaCompile>("compileTestJava") {
+    exclude("**/*")
+}
+
+dependencies {
+    implementation(project(":common"))
+
+    compileOnly("org.spigotmc:spigot-api:1.18.2-R0.1-SNAPSHOT")
+    compileOnly("org.geysermc.floodgate:api:2.0-SNAPSHOT")
+
+    compileOnly("org.projectlombok:lombok:1.18.34")
+    annotationProcessor("org.projectlombok:lombok:1.18.34")
+
+    shadeThisThing(implementation("org.kohsuke:github-api:1.326")!!)
+    shadeThisThing(implementation("com.github.retrooper:packetevents-spigot:2.5.0")!!)
+//    shadeThisThing(implementation("net.kyori:adventure-platform-bukkit:4.3.4")!!)
+    shadeThisThing(implementation("org.incendo:cloud-paper:2.0.0-beta.10")!!)
+    shadeThisThing(implementation("org.incendo:cloud-core:2.0.0")!!)
+
+    // Required for 1.14.4 support because gson is too old to have JosnParser.parseString()
+    shadeThisThing(implementation("com.google.code.gson:gson:2.11.0")!!)
+}
+
+tasks.withType<ShadowJar> {
+    configurations = listOf(shadeThisThing)
+    isEnableRelocation = false
+    relocationPrefix = "${project.property("maven_group")}.${project.property("archives_base_name")}.shaded"
+}
+
+tasks.build {
+    dependsOn(tasks.shadowJar)
+}
+
+tasks.processResources {
+    from(project(":common").sourceSets.main.get().resources)
+    inputs.property("version", project.version)
+    filteringCharset = "UTF-8"
+
+    filesMatching("plugin.yml") {
+        expand(
+            "version" to project.version,
+        )
+    }
+}
@@ -0,0 +1,196 @@
+package me.caseload.knockbacksync;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import io.github.retrooper.packetevents.factory.spigot.SpigotPacketEventsBuilder;
+import me.caseload.knockbacksync.event.events.ConfigReloadEvent;
+import me.caseload.knockbacksync.event.KBSyncEventHandler;
+import me.caseload.knockbacksync.listener.bukkit.*;
+import me.caseload.knockbacksync.manager.ConfigManager;
+import me.caseload.knockbacksync.permission.PermissionChecker;
+import me.caseload.knockbacksync.permission.PluginPermissionChecker;
+import me.caseload.knockbacksync.scheduler.BukkitSchedulerAdapter;
+import me.caseload.knockbacksync.scheduler.FoliaSchedulerAdapter;
+import me.caseload.knockbacksync.sender.BukkitPlayerSelectorParser;
+import me.caseload.knockbacksync.sender.BukkitSenderFactory;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.stats.custom.BukkitStatsManager;
+import me.caseload.knockbacksync.stats.custom.PluginJarHashProvider;
+import me.caseload.knockbacksync.world.BukkitServer;
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Listener;
+import org.bukkit.plugin.PluginManager;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.incendo.cloud.bukkit.CloudBukkitCapabilities;
+import org.incendo.cloud.execution.ExecutionCoordinator;
+import org.incendo.cloud.paper.LegacyPaperCommandManager;
+
+import java.io.File;
+import java.io.InputStream;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Map;
+import java.util.logging.Logger;
+
+public class BukkitBase extends Base {
+
+    private final JavaPlugin plugin;
+    private final BukkitSenderFactory bukkitSenderFactory = new BukkitSenderFactory(this);
+    private final PluginPermissionChecker permissionChecker = new PluginPermissionChecker();
+
+    private int playerUpdateInterval;
+
+    public BukkitBase(JavaPlugin plugin) {
+        this.plugin = plugin;
+        super.configManager = new ConfigManager();
+        super.playerSelectorParser = new BukkitPlayerSelectorParser<>();
+        super.statsManager = new BukkitStatsManager();
+        super.platformServer = new BukkitServer();
+        super.pluginJarHashProvider = new PluginJarHashProvider(this.getClass().getProtectionDomain().getCodeSource().getLocation());
+        this.playerUpdateInterval = this.getConfigManager().getConfigWrapper().getInt("entity_tick_intervals.player", 2);
+    }
+
+    @Override
+    public Logger getLogger() {
+        return this.plugin.getLogger();
+    }
+
+    @Override
+    public File getDataFolder() {
+        return this.plugin.getDataFolder();
+    }
+
+    @Override
+    public InputStream getResource(String filename) {
+        return this.plugin.getResource(filename);
+    }
+
+    @Override
+    public void load() {
+        PacketEvents.setAPI(SpigotPacketEventsBuilder.build(this.plugin));
+        PacketEvents.getAPI().load();
+    }
+
+    @Override
+    public void enable() {
+        super.enable();
+        initializeScheduler();
+        saveDefaultConfig();
+        configManager.updateConfig();
+        configManager.loadConfig(false);
+        statsManager.init();
+        checkForUpdates();
+        super.simpleEventBus.registerListeners(this);
+        if (PacketEvents.getAPI().getServerManager().getVersion().isNewerThanOrEquals(ServerVersion.V_1_20_5)) {
+            scheduler.runTaskTimerAsynchronously(this::setUpdateIntervals, 1, 1);
+        }
+    }
+
+    @Override
+    public void initializeScheduler() {
+        switch (platform) {
+            case BUKKIT:
+                super.scheduler = new BukkitSchedulerAdapter(this.plugin);
+                break;
+            case FOLIA:
+                super.scheduler = new FoliaSchedulerAdapter(this.plugin);
+                break;
+        }
+    }
+
+    @Override
+    protected void registerPlatformListeners() {
+        registerPluginListeners(
+                new BukkitPlayerDamageListener(),
+                new BukkitPlayerKnockbackListener(),
+                new BukkitPlayerJoinQuitListener()
+        );
+    }
+
+    @Override
+    protected void registerCommands() {
+        super.commandManager = new LegacyPaperCommandManager<>(
+                this.plugin,
+                ExecutionCoordinator.simpleCoordinator(),
+                bukkitSenderFactory
+        );
+        if (commandManager instanceof LegacyPaperCommandManager) {
+            LegacyPaperCommandManager<Sender> legacyPaperCommandManager = (LegacyPaperCommandManager<Sender>) commandManager;
+            if (legacyPaperCommandManager.hasCapability(CloudBukkitCapabilities.NATIVE_BRIGADIER)) {
+                legacyPaperCommandManager.registerBrigadier();
+            } else if (commandManager.hasCapability(CloudBukkitCapabilities.ASYNCHRONOUS_COMPLETION)) {
+                legacyPaperCommandManager.registerAsynchronousCompletions();
+            }
+        }
+        super.registerCommands();
+    }
+
+    @Override
+    protected String getVersion() {
+        return this.plugin.getDescription().getVersion();
+    }
+
+    @Override
+    public void saveDefaultConfig() {
+        this.plugin.saveDefaultConfig();
+    }
+
+    @Override
+    public PermissionChecker getPermissionChecker() {
+        return permissionChecker;
+    }
+
+    private void registerPluginListeners(Listener... listeners) {
+        PluginManager pluginManager = this.plugin.getServer().getPluginManager();
+        for (Listener listener : listeners)
+            pluginManager.registerEvents(listener, this.plugin);
+    }
+
+    public BukkitSenderFactory getSenderFactory() {
+        return this.bukkitSenderFactory;
+    }
+
+    public void setUpdateIntervals() {
+        try {
+            for (World world : Bukkit.getWorlds()) {
+                Method getWorldHandleMethod = world.getClass().getMethod("getHandle");
+                Object serverLevel = getWorldHandleMethod.invoke(world);
+
+                // Get ChunkMap
+                Method getChunkSource = serverLevel.getClass().getMethod("getChunkSource");
+                Object chunkSource = getChunkSource.invoke(serverLevel);
+                Field chunkMapField = chunkSource.getClass().getDeclaredField("chunkMap");
+                chunkMapField.setAccessible(true);
+                Object chunkMap = chunkMapField.get(chunkSource);
+
+                // Get entityMap from ChunkMap
+                Field entityMapField = chunkMap.getClass().getDeclaredField("entityMap");
+                entityMapField.setAccessible(true);
+                Map<Integer, ?> entityMap = (Map<Integer, ?>) entityMapField.get(chunkMap);
+                for (Player player : Bukkit.getOnlinePlayers()) {
+                    Object trackedEntity = entityMap.get(player.getEntityId());
+                    if (trackedEntity == null)
+                        continue;
+
+                    Field serverEntityField = trackedEntity.getClass().getDeclaredField("serverEntity");
+                    serverEntityField.setAccessible(true);
+                    Object serverEntity = serverEntityField.get(trackedEntity);
+
+                    Field updateIntervalField = serverEntity.getClass().getDeclaredField("updateInterval");
+                    updateIntervalField.setAccessible(true);
+                    updateIntervalField.set(serverEntity, playerUpdateInterval);
+                }
+            }
+        } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException | NoSuchFieldException e) {
+            throw new IllegalStateException("Unable to use reflection to modify updateIntervals" + e);
+        }
+    }
+
+    @KBSyncEventHandler
+    public void onConfigReload(ConfigReloadEvent event) {
+        playerUpdateInterval = event.getConfigManager().getConfigWrapper().getInt("entity_tick_intervals.player", 2);
+    }
+}
@@ -0,0 +1,24 @@
+package me.caseload.knockbacksync;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public final class BukkitLoaderPlugin extends JavaPlugin {
+
+    private final Base core = new BukkitBase(this);
+
+    @Override
+    public void onLoad() {
+        core.load();
+    }
+
+    @Override
+    public void onEnable() {
+        core.enable();
+    }
+
+    @Override
+    public void onDisable() {
+        PacketEvents.getAPI().terminate();
+    }
+}
@@ -0,0 +1,26 @@
+package me.caseload.knockbacksync.listener.bukkit;
+
+import me.caseload.knockbacksync.listener.PlayerDamageListener;
+import me.caseload.knockbacksync.player.BukkitPlayer;
+import me.caseload.knockbacksync.util.MultiLibUtil;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+
+public class BukkitPlayerDamageListener extends PlayerDamageListener implements Listener {
+
+    @EventHandler(ignoreCancelled = true)
+    public void onPlayerDamage(EntityDamageByEntityEvent event) {
+        Entity victim = event.getEntity();
+        Entity attacker = event.getDamager();
+        if (!(victim instanceof Player) || !(attacker instanceof Player))
+            return;
+
+        if (MultiLibUtil.isExternalPlayer((Player) victim))
+            return;
+
+        onPlayerDamage(new BukkitPlayer((Player) victim), new BukkitPlayer((Player) attacker));
+    }
+}
@@ -0,0 +1,36 @@
+package me.caseload.knockbacksync.listener.bukkit;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import me.caseload.knockbacksync.listener.PlayerJoinQuitListener;
+import me.caseload.knockbacksync.player.BukkitPlayer;
+import me.caseload.knockbacksync.player.PlayerData;
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class BukkitPlayerJoinQuitListener extends PlayerJoinQuitListener implements Listener {
+
+    public static List<Object> chunkMapList = new ArrayList<>();
+
+    @EventHandler
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        onPlayerJoin(new PlayerData(new BukkitPlayer(event.getPlayer())));
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        onPlayerQuit(event.getPlayer().getUniqueId());
+    }
+}
@@ -0,0 +1,40 @@
+package me.caseload.knockbacksync.listener.bukkit;
+
+import com.github.retrooper.packetevents.util.Vector3d;
+import me.caseload.knockbacksync.listener.PlayerKnockbackListener;
+import me.caseload.knockbacksync.player.BukkitPlayer;
+import me.caseload.knockbacksync.util.MultiLibUtil;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.player.PlayerVelocityEvent;
+import org.bukkit.util.Vector;
+
+public class BukkitPlayerKnockbackListener extends PlayerKnockbackListener implements Listener {
+
+    @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
+    public void onPlayerVelocity(PlayerVelocityEvent event) {
+        Player victim = event.getPlayer();
+        EntityDamageEvent entityDamageEvent = victim.getLastDamageCause();
+        if (entityDamageEvent == null)
+            return;
+
+        EntityDamageEvent.DamageCause damageCause = entityDamageEvent.getCause();
+        if (damageCause != EntityDamageEvent.DamageCause.ENTITY_ATTACK)
+            return;
+
+        Entity attacker = ((EntityDamageByEntityEvent) entityDamageEvent).getDamager();
+        if (!(attacker instanceof Player))
+            return;
+
+        if (MultiLibUtil.isExternalPlayer(victim))
+            return;
+
+        Vector vector = victim.getVelocity();
+        onPlayerVelocity(new BukkitPlayer(victim), new Vector3d(vector.getX(), vector.getY(), vector.getZ()));
+    }
+}
@@ -0,0 +1,39 @@
+package me.caseload.knockbacksync.permission;
+
+import me.caseload.knockbacksync.player.BukkitPlayer;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.sender.Sender;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class PluginPermissionChecker implements PermissionChecker {
+
+//    Method getBukkitSenderMethod;
+//
+//    public PluginPermissionChecker() {
+//        try {
+//            getBukkitSenderMethod = CommandSourceStack.class.getMethod("getBukkitSender");
+//        } catch (NoSuchMethodException e) {
+//            e.printStackTrace();
+//        }
+//    }
+
+    // Currently shouldn't be called
+    @Override
+    public boolean hasPermission(Object nativeType, String s, boolean defaultIfUnset) {
+        if (nativeType instanceof CommandSender) {
+            return ((CommandSender) nativeType).hasPermission(s);
+        }
+        throw new IllegalArgumentException("Attempted to check permission of an object that wasn't a platformplayer or Sender. This should never happen on Bukkit!");
+    }
+
+    @Override
+    public boolean hasPermission(Sender source, String s, boolean defaultIfUnset) {
+        return source.hasPermission(s, defaultIfUnset);
+    }
+
+    @Override
+    public boolean hasPermission(PlatformPlayer platformPlayer, String s) {
+        return ((BukkitPlayer) platformPlayer).bukkitPlayer.hasPermission(s);
+    }
+}
@@ -0,0 +1,211 @@
+package me.caseload.knockbacksync.player;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.world.BoundingBox;
+import com.github.retrooper.packetevents.util.Vector3d;
+import me.caseload.knockbacksync.world.PlatformWorld;
+import me.caseload.knockbacksync.world.SpigotWorld;
+import org.bukkit.Bukkit;
+import org.bukkit.enchantments.Enchantment;
+import org.bukkit.entity.Player;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.util.Vector;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.UUID;
+
+public class BukkitPlayer implements PlatformPlayer {
+    public final Player bukkitPlayer;
+
+    // Reflection variables
+    private static Class<?> craftPlayerClass;
+    private static Method getHandleMethod;
+    private static Method getAttackStrengthScaleMethod;
+    private static ServerVersion currentVersion = PacketEvents.getAPI().getServerManager().getVersion();
+
+    // 1.12.2 support
+    static {
+        try {
+            // Check the current server versio
+
+            // If the version is greater than 1.14.4, use the Player method directly
+            if (currentVersion.isOlderThan(ServerVersion.V_1_15)) {
+                Object server = Bukkit.getServer().getClass().getDeclaredMethod("getServer").invoke(Bukkit.getServer());
+                String nmsPackage = server.getClass().getPackage().getName();
+                String bukkitPackage = Bukkit.getServer().getClass().getPackage().getName();
+
+                // Step 1: Load the CraftPlayer class
+                craftPlayerClass = Class.forName(bukkitPackage + ".entity.CraftPlayer");
+                // Step 2: Get the getHandle method
+                getHandleMethod = craftPlayerClass.getMethod("getHandle");
+                // Step 3: Get the getAttackStrengthScale method from the EntityPlayer class
+                Class<?> entityPlayerClass = Class.forName(nmsPackage + ".EntityPlayer");
+                String getAttackStrengthScaleMethodName = "";
+
+                // Determine the method name based on the version
+                if (currentVersion.isOlderThan(ServerVersion.V_1_13)) {
+                    getAttackStrengthScaleMethodName = "n";
+                } else if (currentVersion.isOlderThan(ServerVersion.V_1_14)) {
+                    getAttackStrengthScaleMethodName = "r";
+                } else if (currentVersion.isOlderThan(ServerVersion.V_1_15)) {
+                    getAttackStrengthScaleMethodName = "s";
+                }
+
+                // Get the attack strength scale method for EntityPlayer
+                getAttackStrengthScaleMethod = entityPlayerClass.getMethod(getAttackStrengthScaleMethodName, float.class);
+                getAttackStrengthScaleMethod.setAccessible(true);
+            }
+        } catch (ClassNotFoundException | NoSuchMethodException e) {
+            throw new IllegalStateException("Method of Class required to support this version not found via reflection" + e);
+        } catch (InvocationTargetException | IllegalAccessException e) {
+            throw new RuntimeException("Cannot access required methods via reflection to support this version" + e);
+        }
+    }
+
+    public BukkitPlayer(Player player) {
+        this.bukkitPlayer = player;
+    }
+
+    @Override
+    public UUID getUUID() {
+        return bukkitPlayer.getUniqueId();
+    }
+
+    @Override
+    public String getName() {
+        return bukkitPlayer.getName();
+    }
+
+    @Override
+    public double getX() {
+        return bukkitPlayer.getLocation().getX();
+    }
+
+    @Override
+    public double getY() {
+        return bukkitPlayer.getLocation().getY();
+    }
+
+    @Override
+    public double getZ() {
+        return bukkitPlayer.getLocation().getZ();
+    }
+
+    @Override
+    public float getPitch() {
+        return bukkitPlayer.getLocation().getPitch();
+    }
+
+    @Override
+    public float getYaw() {
+        return bukkitPlayer.getLocation().getYaw();
+    }
+
+    @Override
+    public boolean isOnGround() {
+    /* Inconsistent with Entity.isOnGround()
+    /  Checks to see if this player is currently standing on a block.
+    /  This information may not be reliable, as it is a state provided by the client, and may therefore not be accurate.
+    /  It can also easily be spoofed. We may want to cast to LivingEntity and call isOnGround() instead
+    */
+        return bukkitPlayer.isOnGround();
+    }
+
+
+    @Override
+    public int getPing() {
+        if (currentVersion.isNewerThanOrEquals(ServerVersion.V_1_16_5)) {
+            return bukkitPlayer.getPing();
+        } else {
+            return PacketEvents.getAPI().getPlayerManager().getPing(bukkitPlayer);
+        }
+    }
+
+    @Override
+    public boolean isGliding() {
+        return bukkitPlayer.isGliding();
+    }
+
+    @Override
+    public PlatformWorld getWorld() {
+        return new SpigotWorld(bukkitPlayer.getWorld());
+    }
+
+    @Override
+    public Vector3d getLocation() {
+        org.bukkit.Location location = bukkitPlayer.getLocation();
+        return new Vector3d(location.getX(), location.getY(), location.getZ());
+    }
+
+    @Override
+    public void sendMessage(@NotNull String s) {
+        bukkitPlayer.sendMessage(s);
+    }
+
+    @Override
+    public double getAttackCooldown() {
+        if (currentVersion.isNewerThan(ServerVersion.V_1_14_4)) {
+            return bukkitPlayer.getAttackCooldown();
+        } else {
+            try {
+                // Step 1: Get the CraftPlayer instance
+                // Step 2: Get the handle (NMS EntityPlayer)
+                Object entityPlayer = getHandleMethod.invoke(bukkitPlayer);
+                // Step 3: Invoke the getAttackStrengthScale method
+                return (float) getAttackStrengthScaleMethod.invoke(entityPlayer, 0.5f);
+            } catch (Exception e) {
+                throw new IllegalStateException("This plugin will not work. NMS mapping for getAttackCooldown() failed!");
+            }
+        }
+    }
+
+    @Override
+    public boolean isSprinting() {
+        return bukkitPlayer.isSprinting();
+    }
+
+    @Override
+    public int getMainHandKnockbackLevel() {
+        return bukkitPlayer.getInventory().getItemInMainHand().getEnchantmentLevel(Enchantment.KNOCKBACK);
+    }
+
+    @Override
+    public @Nullable Integer getNoDamageTicks() {
+        return bukkitPlayer.getNoDamageTicks();
+    }
+
+    @Override
+    public void setVelocity(Vector3d adjustedVelocity) {
+        bukkitPlayer.setVelocity(new Vector(adjustedVelocity.x, adjustedVelocity.y, adjustedVelocity.z));
+    }
+
+    @Override
+    public Vector3d getVelocity() {
+        final Vector bukkitVelocity = bukkitPlayer.getVelocity();
+        return new Vector3d(bukkitVelocity.getX(), bukkitVelocity.getY(), bukkitVelocity.getZ());
+    }
+
+    @Override
+    public double getJumpPower() {
+        double jumpVelocity = 0.42;
+
+        PotionEffect jumpEffect = bukkitPlayer.getPotionEffect(PotionEffectType.JUMP);
+        if (jumpEffect != null) {
+            int amplifier = jumpEffect.getAmplifier();
+            jumpVelocity += (amplifier + 1) * 0.1F;
+        }
+
+        return jumpVelocity;
+    }
+
+    @Override
+    public BoundingBox getBoundingBox() {
+        org.bukkit.util.BoundingBox boundingBox = bukkitPlayer.getBoundingBox();
+        return new BoundingBox(boundingBox.getMinX(), boundingBox.getMinY(), boundingBox.getMinZ(), boundingBox.getMaxX(), boundingBox.getMaxY(), boundingBox.getMaxZ());
+    }
+}
@@ -0,0 +1,51 @@
+package me.caseload.knockbacksync.scheduler;
+
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.scheduler.BukkitScheduler;
+
+public class BukkitSchedulerAdapter implements SchedulerAdapter {
+    private final Plugin plugin;
+    private final BukkitScheduler scheduler;
+
+    public BukkitSchedulerAdapter(Plugin plugin) {
+        this.plugin = plugin;
+        this.scheduler = Bukkit.getScheduler();
+    }
+
+    @Override
+    public AbstractTaskHandle runTask(Runnable task) {
+        return new BukkitTaskHandle(scheduler.runTask(plugin, task));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskAsynchronously(Runnable task) {
+        return new BukkitTaskHandle(scheduler.runTaskAsynchronously(plugin, task));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskLater(Runnable task, long delayTicks) {
+        return new BukkitTaskHandle(scheduler.runTaskLater(plugin, task, delayTicks));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskTimer(Runnable task, long delayTicks, long periodTicks) {
+        return new BukkitTaskHandle(scheduler.runTaskTimer(plugin, task, delayTicks, periodTicks));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskLaterAsynchronously(Runnable task, long delay) {
+        return new BukkitTaskHandle(scheduler.runTaskLaterAsynchronously(plugin, task, delay));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskTimerAsynchronously(Runnable task, long delay, long period) {
+        return new BukkitTaskHandle(scheduler.runTaskTimerAsynchronously(plugin, task, delay, period));
+    }
+
+    // Bukkit should take care of this for us automatically
+    @Override
+    public void shutdown() {
+
+    }
+}
@@ -0,0 +1,29 @@
+package me.caseload.knockbacksync.scheduler;
+
+import org.bukkit.plugin.Plugin;
+import org.bukkit.scheduler.BukkitTask;
+import org.jetbrains.annotations.NotNull;
+
+public class BukkitTaskHandle implements AbstractTaskHandle {
+    private final BukkitTask bukkitTask;
+    private boolean cancelled;
+
+    public BukkitTaskHandle(@NotNull BukkitTask bukkitTask) {
+        this.bukkitTask = bukkitTask;
+    }
+
+    public Plugin getOwner() {
+        return this.bukkitTask.getOwner();
+    }
+
+    @Override
+    public boolean getCancelled() {
+        return this.cancelled;
+    }
+
+    @Override
+    public void cancel() {
+        this.bukkitTask.cancel();
+        this.cancelled = true;
+    }
+}
@@ -0,0 +1,60 @@
+package me.caseload.knockbacksync.scheduler;
+
+import io.github.retrooper.packetevents.util.folia.GlobalRegionScheduler;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class FoliaSchedulerAdapter implements SchedulerAdapter {
+    private final Plugin plugin;
+    private GlobalRegionScheduler scheduler = null;
+
+    public FoliaSchedulerAdapter(Plugin plugin) {
+        this.plugin = plugin;
+        try {
+            // Attempt to find and call the `getGlobalRegionScheduler` method
+            Method getSchedulerMethod = Bukkit.getServer().getClass().getMethod("getGlobalRegionScheduler");
+            scheduler = (GlobalRegionScheduler) getSchedulerMethod.invoke(Bukkit.getServer());
+        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
+            plugin.getLogger().severe("Failed to access GlobalRegionScheduler: " + e.getMessage());
+        }
+    }
+
+    @Override
+    public AbstractTaskHandle runTask(Runnable task) {
+        return new FoliaTaskHandle(scheduler.run(plugin, scheduledTask -> task.run()));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskAsynchronously(Runnable task) {
+        return new FoliaTaskHandle(scheduler.run(plugin, scheduledTask -> task.run()));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskLater(Runnable task, long delayTicks) {
+        return new FoliaTaskHandle(scheduler.runDelayed(plugin, scheduledTask -> task.run(), delayTicks));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskTimer(Runnable task, long delayTicks, long periodTicks) {
+        return new FoliaTaskHandle(scheduler.runAtFixedRate(plugin, scheduledTask -> task.run(), delayTicks, periodTicks));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskLaterAsynchronously(Runnable task, long delay) {
+        return new FoliaTaskHandle(scheduler.runDelayed(plugin, scheduledTask -> task.run(), delay));
+    }
+
+    @Override
+    public AbstractTaskHandle runTaskTimerAsynchronously(Runnable task, long delay, long period) {
+        return new FoliaTaskHandle(scheduler.runAtFixedRate(plugin, scheduledTask -> task.run(), delay, period));
+    }
+
+    // Folia takes care of this
+    @Override
+    public void shutdown() {
+
+    }
+}
@@ -0,0 +1,55 @@
+package me.caseload.knockbacksync.scheduler;
+
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+
+public class FoliaTaskHandle implements AbstractTaskHandle {
+    private static final MethodHandle GET_OWNING_PLUGIN;
+    private static final MethodHandle CANCEL;
+
+    static {
+        try {
+            Class<?> scheduledTaskClass = Class.forName("io.papermc.paper.threadedregions.scheduler.ScheduledTask");
+            MethodHandles.Lookup lookup = MethodHandles.lookup();
+
+            GET_OWNING_PLUGIN = lookup.findVirtual(scheduledTaskClass, "getOwningPlugin", MethodType.methodType(Plugin.class));
+            CANCEL = lookup.findVirtual(scheduledTaskClass, "cancel", MethodType.methodType(void.class));
+        } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException e) {
+            throw new RuntimeException("Failed to initialize FoliaTaskHandle reflection", e);
+        }
+    }
+
+    private final Object scheduledTask; // Store as Object instead of ScheduledTask
+    private boolean cancelled;
+
+    public FoliaTaskHandle(@NotNull Object scheduledTask) {
+        this.scheduledTask = scheduledTask;
+    }
+
+    public Plugin getOwner() {
+        try {
+            return (Plugin) GET_OWNING_PLUGIN.invoke(scheduledTask);
+        } catch (Throwable e) {
+            throw new RuntimeException("Failed to invoke getOwningPlugin", e);
+        }
+    }
+
+    @Override
+    public boolean getCancelled() {
+        return this.cancelled;
+    }
+
+    @Override
+    public void cancel() {
+        try {
+            CANCEL.invoke(scheduledTask);
+        } catch (Throwable e) {
+            throw new RuntimeException("Failed to invoke cancel", e);
+        }
+        this.cancelled = true;
+    }
+}
@@ -0,0 +1,36 @@
+package me.caseload.knockbacksync.sender;
+
+import me.caseload.knockbacksync.command.generic.PlayerSelector;
+import me.caseload.knockbacksync.player.BukkitPlayer;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+
+import java.util.Collection;
+import java.util.Collections;
+
+public class BukkitPlayerSelectorAdapter implements PlayerSelector {
+    private final org.incendo.cloud.bukkit.data.SinglePlayerSelector bukkitSelector;
+
+    public BukkitPlayerSelectorAdapter(org.incendo.cloud.bukkit.data.SinglePlayerSelector bukkitSelector) {
+        this.bukkitSelector = bukkitSelector;
+    }
+
+    @Override
+    public boolean isSingle() {
+        return true;
+    }
+
+    @Override
+    public PlatformPlayer getSinglePlayer() {
+        return new BukkitPlayer(bukkitSelector.single());
+    }
+
+    @Override
+    public Collection<PlatformPlayer> getPlayers() {
+        return Collections.singletonList(new BukkitPlayer(bukkitSelector.single()));
+    }
+
+    @Override
+    public String inputString() {
+        return bukkitSelector.inputString();
+    }
+}
@@ -0,0 +1,28 @@
+package me.caseload.knockbacksync.sender;
+
+import me.caseload.knockbacksync.command.generic.AbstractPlayerSelectorParser;
+import me.caseload.knockbacksync.command.generic.PlayerSelector;
+import org.incendo.cloud.bukkit.parser.selector.SinglePlayerSelectorParser;
+import org.incendo.cloud.context.CommandContext;
+import org.incendo.cloud.parser.ParserDescriptor;
+
+import java.util.concurrent.CompletableFuture;
+
+public class BukkitPlayerSelectorParser<C> extends AbstractPlayerSelectorParser<C> {
+
+    @Override
+    public ParserDescriptor<C, PlayerSelector> descriptor() {
+        return createDescriptor();
+    }
+
+    @Override
+    protected ParserDescriptor<C, ?> getPlatformSpecificDescriptor() {
+        return SinglePlayerSelectorParser.singlePlayerSelectorParser();
+    }
+
+    @Override
+    protected CompletableFuture<PlayerSelector> adaptToCommonSelector(CommandContext<C> context, Object platformSpecificSelector) {
+        return CompletableFuture.completedFuture(new BukkitPlayerSelectorAdapter((org.incendo.cloud.bukkit.data.SinglePlayerSelector) platformSpecificSelector));
+    }
+
+}
@@ -0,0 +1,88 @@
+package me.caseload.knockbacksync.sender;
+
+import me.caseload.knockbacksync.BukkitBase;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import org.bukkit.command.RemoteConsoleCommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.permissions.Permission;
+import org.bukkit.permissions.PermissionDefault;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.incendo.cloud.SenderMapper;
+
+import java.util.UUID;
+
+public class BukkitSenderFactory extends SenderFactory<BukkitBase, CommandSender> implements SenderMapper<CommandSender, Sender> {
+//    private final BukkitAudiences audiences;
+
+    public BukkitSenderFactory(BukkitBase kbSyncBukkitBase) {
+        super(kbSyncBukkitBase);
+//        this.audiences = BukkitAudiences.create(kbSyncBukkitBase.getLoader());
+    }
+
+    @Override
+    protected String getName(CommandSender sender) {
+        if (sender instanceof Player) {
+            return sender.getName();
+        }
+        return Sender.CONSOLE_NAME;
+    }
+
+    @Override
+    protected UUID getUniqueId(CommandSender sender) {
+        if (sender instanceof Player) {
+            return ((Player) sender).getUniqueId();
+        }
+        return Sender.CONSOLE_UUID;
+    }
+
+    @Override
+    protected void sendMessage(CommandSender sender, String message) {
+        sender.sendMessage(message);
+    }
+
+//    @Override
+//    protected void sendMessage(CommandSender sender, Component message) {
+//        // we can safely send async for players and the console - otherwise, send it sync
+//        if (sender instanceof Player || sender instanceof ConsoleCommandSender || sender instanceof RemoteConsoleCommandSender) {
+//            this.audiences.sender(sender).sendMessage(message);
+//        } else {
+//            getPlugin().getBootstrap().getScheduler().executeSync(() -> this.audiences.sender(sender).sendMessage(message));
+//        }
+//    }
+
+    @Override
+    protected boolean hasPermission(CommandSender sender, String node) {
+        return sender.hasPermission(node);
+    }
+
+    @Override
+    protected boolean hasPermission(CommandSender sender, String node, boolean defaultIfUnset) {
+        return sender.hasPermission(new Permission(node, defaultIfUnset ? PermissionDefault.TRUE : PermissionDefault.FALSE));
+    }
+
+    @Override
+    protected void performCommand(CommandSender sender, String command) {
+        //
+    }
+
+    @Override
+    protected boolean isConsole(CommandSender sender) {
+        return sender instanceof ConsoleCommandSender || sender instanceof RemoteConsoleCommandSender;
+    }
+
+    @Override
+    public @NonNull Sender map(@NonNull CommandSender base) {
+        return this.wrap(base);
+    }
+
+    @Override
+    public @NonNull CommandSender reverse(@NonNull Sender mapped) {
+        return this.unwrap(mapped);
+    }
+
+    @Override
+    public void close() throws Exception {
+
+    }
+}
@@ -0,0 +1,17 @@
+package me.caseload.knockbacksync.stats.custom;
+
+import me.caseload.knockbacksync.Base;
+
+public class BukkitStatsManager extends StatsManager {
+
+    @Override
+    public void init() {
+        Base.INSTANCE.getScheduler().runTaskAsynchronously(() -> {
+            BuildTypePie.determineBuildType(); // Function to calculate hash
+            MetricsBukkit metrics = new MetricsBukkit(23568);
+            metrics.addCustomChart(new PlayerVersionsPie());
+            metrics.addCustomChart(new BuildTypePie());
+            super.metrics = metrics;
+        });
+    }
+}
@@ -0,0 +1,156 @@
+package me.caseload.knockbacksync.stats.custom;
+
+/*
+ * This Metrics class was auto-generated and can be copied into your project if you are
+ * not using a build tool like Gradle or Maven for dependency management.
+ *
+ * IMPORTANT: You are not allowed to modify this class, except changing the package.
+ *
+ * Disallowed modifications include but are not limited to:
+ *  - Remove the option for users to opt-out
+ *  - Change the frequency for data submission
+ *  - Obfuscate the code (every obfuscator should allow you to make an exception for specific files)
+ *  - Reformat the code (if you use a linter, add an exception)
+ *
+ * Violations will result in a ban of your plugin and account from bStats.
+ */
+
+import me.caseload.knockbacksync.BukkitLoaderPlugin;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.stats.CustomChart;
+import me.caseload.knockbacksync.stats.JsonObjectBuilder;
+import org.bukkit.Bukkit;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.util.Collection;
+import java.util.UUID;
+import java.util.logging.Level;
+
+public class MetricsBukkit implements Metrics {
+
+    private final Plugin plugin;
+
+    private final MetricsBase metricsBase;
+
+
+    public MetricsBukkit(int serviceId) {
+        this.plugin = BukkitLoaderPlugin.getPlugin(BukkitLoaderPlugin.class);
+        // Get the config file
+        File bStatsFolder = new File(plugin.getDataFolder().getParentFile(), "bStats");
+        File configFile = new File(bStatsFolder, "config.yml");
+        YamlConfiguration config = YamlConfiguration.loadConfiguration(configFile);
+        if (!config.isSet("serverUuid")) {
+            config.addDefault("enabled", true);
+            config.addDefault("serverUuid", UUID.randomUUID().toString());
+            config.addDefault("logFailedRequests", false);
+            config.addDefault("logSentData", false);
+            config.addDefault("logResponseStatusText", false);
+            // Inform the server owners about bStats
+            config
+                    .options()
+                    .header(
+                            "bStats (https://bStats.org) collects some basic information for plugin authors, like how\n"
+                                    + "many people use their plugin and their total player count. It's recommended to keep bStats\n"
+                                    + "enabled, but if you're not comfortable with this, you can turn this setting off. There is no\n"
+                                    + "performance penalty associated with having metrics enabled, and data sent to bStats is fully\n"
+                                    + "anonymous.")
+                    .copyDefaults(true);
+            try {
+                config.save(configFile);
+            } catch (IOException ignored) {
+            }
+        }
+        // Load the data
+        boolean enabled = config.getBoolean("enabled", true);
+        String serverUUID = config.getString("serverUuid");
+        boolean logErrors = config.getBoolean("logFailedRequests", false);
+        boolean logSentData = config.getBoolean("logSentData", false);
+        boolean logResponseStatusText = config.getBoolean("logResponseStatusText", false);
+//        boolean isFolia = false;
+//        try {
+//            isFolia = Class.forName("io.papermc.paper.threadedregions.RegionizedServer") != null;
+//        } catch (Exception e) {
+//        }
+        metricsBase =
+                new // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        MetricsBase(
+                        "bukkit",
+                        serverUUID,
+                        serviceId,
+                        enabled,
+                        this::appendPlatformData,
+                        this::appendServiceData,
+                        submitDataTask -> Base.INSTANCE.getScheduler().runTask(submitDataTask),
+//                        isFolia
+//                                ? null
+//                                : submitDataTask -> Bukkit.getScheduler().runTask(plugin, submitDataTask),
+                        plugin::isEnabled,
+                        (message, error) -> this.plugin.getLogger().log(Level.WARNING, message, error),
+                        (message) -> this.plugin.getLogger().log(Level.INFO, message),
+                        logErrors,
+                        logSentData,
+                        logResponseStatusText,
+                        false);
+    }
+
+    /**
+     * Shuts down the underlying scheduler service.
+     */
+    @Override
+    public void shutdown() {
+        metricsBase.shutdown();
+    }
+
+    /**
+     * Adds a custom chart.
+     *
+     * @param chart The chart to add.
+     */
+    public void addCustomChart(CustomChart chart) {
+        metricsBase.addCustomChart(chart);
+    }
+
+    private void appendPlatformData(JsonObjectBuilder builder) {
+        builder.appendField("playerAmount", getPlayerAmount());
+        builder.appendField("onlineMode", Bukkit.getOnlineMode() ? 1 : 0);
+        builder.appendField("bukkitVersion", Bukkit.getVersion());
+        builder.appendField("bukkitName", Bukkit.getName());
+        builder.appendField("javaVersion", System.getProperty("java.version"));
+        builder.appendField("osName", System.getProperty("os.name"));
+        builder.appendField("osArch", System.getProperty("os.arch"));
+        builder.appendField("osVersion", System.getProperty("os.version"));
+        builder.appendField("coreCount", Runtime.getRuntime().availableProcessors());
+    }
+
+    private void appendServiceData(JsonObjectBuilder builder) {
+        builder.appendField("pluginVersion", plugin.getDescription().getVersion());
+    }
+
+    private int getPlayerAmount() {
+        try {
+            // Around MC 1.8 the return type was changed from an array to a collection,
+            // This fixes java.lang.NoSuchMethodError:
+            // org.bukkit.Bukkit.getOnlinePlayers()Ljava/util/Collection;
+            Method onlinePlayersMethod = Class.forName("org.bukkit.Server").getMethod("getOnlinePlayers");
+            return onlinePlayersMethod.getReturnType().equals(Collection.class)
+                    ? ((Collection<?>) onlinePlayersMethod.invoke(Bukkit.getServer())).size()
+                    : ((Player[]) onlinePlayersMethod.invoke(Bukkit.getServer())).length;
+        } catch (Exception e) {
+            // Just use the new method if the reflection failed
+            return Bukkit.getOnlinePlayers().size();
+        }
+    }
+}
+
+
@@ -0,0 +1,32 @@
+package me.caseload.knockbacksync.util;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import org.bukkit.entity.Player;
+
+import java.lang.reflect.Method;
+
+public class MultiLibUtil {
+
+    public final static Method externalPlayerMethod = getMethod(Player.class, "isExternalPlayer");
+
+    public static Method getMethod(Class<?> clazz, String methodName) {
+        try {
+            return clazz.getMethod(methodName);
+        } catch (NoSuchMethodException e) {
+            return null;
+        }
+    }
+
+    // TODO: cache external players for better performance, but this only matters for people using multi-lib
+    public static boolean isExternalPlayer(Player player) {
+        if (externalPlayerMethod == null || (PacketEvents.getAPI().getServerManager().getVersion().isOlderThan(ServerVersion.V_1_18)))
+            return false;
+        try {
+            return (boolean) externalPlayerMethod.invoke(player);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+}
@@ -0,0 +1,22 @@
+package me.caseload.knockbacksync.world;
+
+import me.caseload.knockbacksync.player.BukkitPlayer;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import org.bukkit.Bukkit;
+
+import java.util.Collection;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+public class BukkitServer implements PlatformServer {
+    public Collection<PlatformPlayer> getOnlinePlayers() {
+        return Bukkit.getOnlinePlayers().stream()
+                .map(BukkitPlayer::new)
+                .collect(Collectors.toList());
+    }
+
+    @Override
+    public PlatformPlayer getPlayer(UUID uuid) {
+        return new BukkitPlayer(Bukkit.getPlayer(uuid));
+    }
+}
@@ -0,0 +1,169 @@
+package me.caseload.knockbacksync.world;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.world.BlockFace;
+import com.github.retrooper.packetevents.protocol.world.states.WrappedBlockState;
+import com.github.retrooper.packetevents.util.Vector3d;
+import com.github.retrooper.packetevents.util.Vector3i;
+import io.github.retrooper.packetevents.util.SpigotConversionUtil;
+import me.caseload.knockbacksync.world.raytrace.FluidHandling;
+import me.caseload.knockbacksync.world.raytrace.RayTraceResult;
+import org.bukkit.Bukkit;
+import org.bukkit.FluidCollisionMode;
+import org.bukkit.World;
+import org.bukkit.block.Block;
+import org.bukkit.util.Vector;
+
+import java.lang.reflect.Method;
+
+public class SpigotWorld implements PlatformWorld {
+    private final World world;
+
+    // Reflection variables
+    private static Class<?> craftWorldClass;
+    private static Class<?> vec3DClass;
+    private static Class<?> movingObjectPositionClass;
+    private static Class<?> enumDirectionClass;
+    private static Method craftWorldGetHandleMethod;
+    private static Method rayTraceMethod;
+    private static Method vec3DAddMethod;
+
+    static {
+        if (PacketEvents.getAPI().getServerManager().getVersion().isOlderThan(ServerVersion.V_1_13)) {
+            try {
+                Object server = Bukkit.getServer().getClass().getDeclaredMethod("getServer").invoke(Bukkit.getServer());
+                String nmsPackage = server.getClass().getPackage().getName();
+                String bukkitPackage = Bukkit.getServer().getClass().getPackage().getName();
+
+                // Load necessary classes dynamically for Minecraft 1.12.2
+                craftWorldClass = Class.forName(bukkitPackage + ".CraftWorld");
+                vec3DClass = Class.forName(nmsPackage + ".Vec3D");
+                movingObjectPositionClass = Class.forName(nmsPackage + ".MovingObjectPosition");
+                enumDirectionClass = Class.forName(nmsPackage + ".EnumDirection");
+
+//                CraftWorld
+
+                // Get method
+                craftWorldGetHandleMethod = craftWorldClass.getMethod("getHandle");
+                rayTraceMethod = Class.forName(nmsPackage + ".World").getMethod("rayTrace", vec3DClass, vec3DClass, boolean.class, boolean.class, boolean.class);
+                vec3DAddMethod = vec3DClass.getMethod("add", double.class, double.class, double.class);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    public SpigotWorld(World world) {
+        this.world = world;
+    }
+
+    private static BlockFace getBlockFaceFrom(org.bukkit.block.BlockFace direction) {
+        switch (direction) {
+            case NORTH:
+                return BlockFace.NORTH;
+            case SOUTH:
+                return BlockFace.SOUTH;
+            case EAST:
+                return BlockFace.EAST;
+            case WEST:
+                return BlockFace.WEST;
+            case UP:
+                return BlockFace.UP;
+            case DOWN:
+                return BlockFace.DOWN;
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public WrappedBlockState getBlockStateAt(int x, int y, int z) {
+        Block block = world.getBlockAt(x, y, z);
+        return SpigotConversionUtil.fromBukkitBlockData(block.getBlockData());
+    }
+
+    @Override
+    public WrappedBlockState getBlockStateAt(Vector3d loc) {
+        return getBlockStateAt((int) Math.floor(loc.x), (int) Math.floor(loc.x), (int) Math.floor(loc.x));
+    }
+
+    @Override
+    public RayTraceResult rayTraceBlocks(Vector3d start, Vector3d direction, double maxDistance, FluidHandling fluidHandling, boolean ignorePassableBlocks) {
+        if (PacketEvents.getAPI().getServerManager().getVersion().isNewerThan(ServerVersion.V_1_12_2)) {
+            Vector startVec = new Vector(start.getX(), start.getY(), start.getZ());
+            Vector directionVec = new Vector(direction.getX(), direction.getY(), direction.getZ());
+
+            FluidCollisionMode fluidMode = (fluidHandling == FluidHandling.NONE) ? FluidCollisionMode.NEVER :
+                    (fluidHandling == FluidHandling.SOURCE_ONLY) ? FluidCollisionMode.SOURCE_ONLY :
+                            FluidCollisionMode.ALWAYS;
+
+            org.bukkit.util.RayTraceResult result = world.rayTraceBlocks(startVec.toLocation(world), directionVec, maxDistance, fluidMode, ignorePassableBlocks);
+
+            if (result == null) return null;
+
+            return new RayTraceResult(
+                    new Vector3d(result.getHitPosition().getX(), result.getHitPosition().getY(), result.getHitPosition().getZ()),
+                    getBlockFaceFrom(result.getHitBlockFace()),
+                    new Vector3i(result.getHitBlock().getX(), result.getHitBlock().getY(), result.getHitBlock().getZ()),
+                    result.getHitBlock() != null ? SpigotConversionUtil.fromBukkitBlockData(result.getHitBlock().getBlockData()) : null
+            );
+            // Only tested on 1.12.2
+        } else {
+            try {
+                // Create start and end positions
+                Object startPos = vec3DClass.getConstructor(double.class, double.class, double.class)
+                        .newInstance(start.getX(), start.getY(), start.getZ());
+                Object endPos = vec3DAddMethod.invoke(startPos, direction.getX(), direction.getY(), direction.getZ());
+
+                // Call rayTrace method
+                Object hitResult = rayTraceMethod.invoke(craftWorldGetHandleMethod.invoke(world), startPos, endPos, false, true, false);
+                if (hitResult == null) return null;
+
+                // Extract hit position and direction
+                Vector3d hitPosition = new Vector3d(
+                        (double) hitResult.getClass().getField("pos").get(hitResult),
+                        (double) hitResult.getClass().getField("pos").get(hitResult).getClass().getField("y").get(hitResult.getClass().getField("pos").get(hitResult)),
+                        (double) hitResult.getClass().getField("pos").get(hitResult).getClass().getField("z").get(hitResult.getClass().getField("pos").get(hitResult))
+                );
+
+                Object hitDirection = hitResult.getClass().getField("direction").get(hitResult);
+                Object hitBlock = hitResult.getClass().getField("e").get(hitResult); // e = BlockHitResult
+
+                return new RayTraceResult(
+                        hitPosition,
+                        getHitBlockFace(hitDirection),
+                        new Vector3i((int) hitBlock.getClass().getField("x").get(hitBlock),
+                                (int) hitBlock.getClass().getField("y").get(hitBlock),
+                                (int) hitBlock.getClass().getField("z").get(hitBlock)),
+                        hitBlock != null ? WrappedBlockState.getByString(hitBlock.getClass().getField("type").get(hitBlock).toString()) : null
+                );
+            } catch (Exception e) {
+                e.printStackTrace();
+                return null; // Return null if there was an error during ray tracing
+            }
+        }
+    }
+
+    private static BlockFace getHitBlockFace(Object enumDirection) {
+        try {
+            // Match the EnumDirection to the corresponding BlockFace
+            if (enumDirection.equals(SpigotWorld.enumDirectionClass.getField("NORTH").get(null))) {
+                return BlockFace.NORTH;
+            } else if (enumDirection.equals(SpigotWorld.enumDirectionClass.getField("SOUTH").get(null))) {
+                return BlockFace.SOUTH;
+            } else if (enumDirection.equals(SpigotWorld.enumDirectionClass.getField("EAST").get(null))) {
+                return BlockFace.EAST;
+            } else if (enumDirection.equals(SpigotWorld.enumDirectionClass.getField("WEST").get(null))) {
+                return BlockFace.WEST;
+            } else if (enumDirection.equals(SpigotWorld.enumDirectionClass.getField("UP").get(null))) {
+                return BlockFace.UP;
+            } else if (enumDirection.equals(SpigotWorld.enumDirectionClass.getField("DOWN").get(null))) {
+                return BlockFace.DOWN;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        throw new IllegalStateException("Unexpected value: " + enumDirection);
+    }
+}
@@ -0,0 +1,22 @@
+name: KnockbackSync
+version: ${version}
+main: me.caseload.knockbacksync.BukkitLoaderPlugin
+api-version: '1.13' # We actually support 1.12.2, api-version was added later though
+authors: [ Caseload, Axionize ]
+description: Synchronizes player knockback for smoother gameplay.
+folia-supported: true
+permissions:
+  knockbacksync.update:
+    default: op
+  knockbacksync.toggle.global:
+    default: op
+  knockbacksync.toggle.other:
+    default: op
+  knockbacksync.toggle.self:
+    default: op
+  knockbacksync.ping:
+    default: op
+  knockbacksync.reload:
+    default: op
+  knockbacksync.toggleoffground:
+    default: op
@@ -0,0 +1,42 @@
+plugins {
+    id("fabric-loom")
+    id("com.github.gmazzo.buildconfig") version "3.1.0"
+}
+
+dependencies {
+    minecraft("com.mojang:minecraft:1.16.5")
+    mappings(loom.layered {
+        officialMojangMappings()
+        parchment("org.parchmentmc.data:parchment-1.16.5:2022.03.06")
+    })
+
+    // True compileOnly deps
+    compileOnly("org.geysermc.floodgate:api:2.0-SNAPSHOT")
+    compileOnly("org.projectlombok:lombok:1.18.34")
+    annotationProcessor("org.projectlombok:lombok:1.18.34")
+
+    // Shaded in or bundled by platform-specific code
+    implementation("com.github.retrooper:packetevents-api:2.5.0")
+    implementation("org.yaml:snakeyaml:2.0")
+//    implementation("com.fasterxml.jackson.core:jackson-databind:2.17.2")
+//    implementation("com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.17.2")
+    implementation("org.kohsuke:github-api:1.326") {
+        exclude(group = "commons-io", module = "commons-io")
+        exclude(group = "org.apache.commons", module = "commons-lang3")
+    }
+
+    implementation("org.incendo:cloud-core:2.0.0")
+    implementation("org.incendo:cloud-minecraft-extras:2.0.0-beta.10")
+}
+
+repositories {
+    maven("https://maven.neoforged.net/releases")
+}
+
+tasks.named("remapJar").configure {
+    enabled = false
+}
+
+buildConfig {
+    buildConfigField("String", "GITHUB_REPO", "\"${project.rootProject.ext["githubRepo"]}\"")
+}
@@ -0,0 +1,225 @@
+package me.caseload.knockbacksync;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import lombok.Getter;
+import me.caseload.knockbacksync.command.MainCommand;
+import me.caseload.knockbacksync.command.generic.AbstractPlayerSelectorParser;
+import me.caseload.knockbacksync.command.generic.BuilderCommand;
+import me.caseload.knockbacksync.command.subcommand.PingCommand;
+import me.caseload.knockbacksync.command.subcommand.ReloadCommand;
+import me.caseload.knockbacksync.command.subcommand.StatusCommand;
+import me.caseload.knockbacksync.command.subcommand.ToggleCommand;
+import me.caseload.knockbacksync.command.subcommand.ToggleOffGroundSubcommand;
+import me.caseload.knockbacksync.event.Event;
+import me.caseload.knockbacksync.event.EventBus;
+import me.caseload.knockbacksync.event.OptimizedEventBus;
+import me.caseload.knockbacksync.listener.packetevents.AttributeChangeListener;
+import me.caseload.knockbacksync.listener.packetevents.PingReceiveListener;
+import me.caseload.knockbacksync.manager.ConfigManager;
+import me.caseload.knockbacksync.permission.PermissionChecker;
+import me.caseload.knockbacksync.scheduler.SchedulerAdapter;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.stats.custom.PluginJarHashProvider;
+import me.caseload.knockbacksync.stats.custom.StatsManager;
+import me.caseload.knockbacksync.world.PlatformServer;
+import org.incendo.cloud.CommandManager;
+import org.kohsuke.github.GitHub;
+
+import java.io.File;
+import java.io.InputStream;
+import java.util.*;
+import java.util.logging.Logger;
+
+// Base class
+public abstract class Base {
+    public static Logger LOGGER;
+    public static Base INSTANCE;
+
+    public final Platform platform;
+    public StatsManager statsManager;
+    public PlatformServer platformServer;
+    @Getter protected PluginJarHashProvider pluginJarHashProvider;
+    @Getter protected SchedulerAdapter scheduler;
+    @Getter protected ConfigManager configManager;
+    protected CommandManager<Sender> commandManager;
+    @Getter protected final EventBus simpleEventBus = new OptimizedEventBus();
+
+    @Getter
+    protected AbstractPlayerSelectorParser<Sender> playerSelectorParser;
+
+    protected Base() {
+        this.platform = getPlatform();
+        INSTANCE = this;
+    }
+
+    private Platform getPlatform() {
+        final Map<String, Platform> platforms = Collections.unmodifiableMap(new HashMap<String, Platform>() {{
+            put("io.papermc.paper.threadedregions.RegionizedServer", Platform.FOLIA);
+            put("org.bukkit.Bukkit", Platform.BUKKIT);
+            put("net.fabricmc.loader.api.FabricLoader", Platform.FABRIC);
+        }});
+
+        return platforms.entrySet().stream()
+                .filter(entry -> isClassPresent(entry.getKey()))
+                .map(Map.Entry::getValue)
+                .findFirst()
+                .orElseThrow(() -> new IllegalStateException("Unknown platform!"));
+    }
+
+    private boolean isClassPresent(String className) {
+        try {
+            Class.forName(className);
+            return true;
+        } catch (ClassNotFoundException ignored) {
+            return false;
+        }
+    }
+
+    public abstract Logger getLogger();
+
+    public abstract File getDataFolder();
+
+    public abstract InputStream getResource(String filename);
+
+    public abstract void load();
+
+    public void enable() {
+        LOGGER = getLogger();
+        saveDefaultConfig();
+        initializePacketEvents();
+        registerCommonListeners();
+        registerPlatformListeners();
+        registerCommands();
+    }
+
+    public abstract void initializeScheduler();
+
+    public void initializePacketEvents() {
+        PacketEvents.getAPI().getSettings()
+                .checkForUpdates(false)
+                .debug(false);
+
+        PacketEvents.getAPI().init();
+    }
+
+    protected void registerCommonListeners() {
+        PacketEvents.getAPI().getEventManager().registerListeners(
+                new AttributeChangeListener(),
+                new PingReceiveListener()
+        );
+        Event.setEventBus(simpleEventBus);
+    }
+
+    protected abstract void registerPlatformListeners();
+
+    protected void registerCommands() {
+        List<BuilderCommand> list = Arrays.asList(
+                new MainCommand(),
+                new ReloadCommand(),
+                new PingCommand(),
+                new StatusCommand(),
+                new ToggleOffGroundSubcommand(),
+                new ToggleCommand()
+        );
+        list.forEach(command -> command.register(commandManager));
+    }
+
+
+    protected abstract String getVersion();
+
+    protected void checkForUpdates() {
+        getLogger().info("Checking for updates...");
+
+        scheduler.runTaskAsynchronously(() -> {
+            try {
+                GitHub github = GitHub.connectAnonymously();
+                String latestVersion = github.getRepository("CASELOAD7000/knockback-sync")
+                        .getLatestRelease()
+                        .getTagName();
+
+                String currentVersion = getVersion();
+
+                int comparisonResult = compareVersions(currentVersion, latestVersion);
+
+                if (comparisonResult < 0) {
+                    LOGGER.warning("You are running an older version. A new update is available for download at: https://github.com/CASELOAD7000/knockback-sync/releases/latest");
+                    configManager.setUpdateAvailable(true);
+                } else if (comparisonResult > 0) {
+                    if (currentVersion.contains("-dev")) {
+                        LOGGER.info("You are running a development build newer than the latest release.");
+                    } else {
+                        LOGGER.info("You are running a version newer than the latest release.");
+                    }
+                    configManager.setUpdateAvailable(false);
+                } else {
+                    LOGGER.info("You are running the latest release.");
+                    configManager.setUpdateAvailable(false);
+                }
+            } catch (Exception e) {
+                LOGGER.severe("Failed to check for updates: " + e.getMessage());
+            }
+        });
+    }
+
+    private int compareVersions(String version1, String version2) {
+        String[] v1Parts = version1.split("[-.]");
+        String[] v2Parts = version2.split("[-.]");
+
+        int length = Math.min(v1Parts.length, v2Parts.length);
+
+        for (int i = 0; i < length; i++) {
+            int comparison = compareVersionPart(v1Parts[i], v2Parts[i]);
+            if (comparison != 0) {
+                return comparison;
+            }
+        }
+
+        // If we're here, all compared parts are equal
+        if (v1Parts.length != v2Parts.length) {
+            return compareSpecialVersions(v1Parts, v2Parts);
+        }
+
+        return 0; // Versions are equal
+    }
+
+    private int compareVersionPart(String part1, String part2) {
+        try {
+            int v1 = Integer.parseInt(part1);
+            int v2 = Integer.parseInt(part2);
+            return Integer.compare(v1, v2);
+        } catch (NumberFormatException e) {
+            // If parts are not numbers, compare them based on dev < snapshot < release
+            return compareSpecialPart(part1, part2);
+        }
+    }
+
+    private int compareSpecialPart(String part1, String part2) {
+        if (part1.equals(part2)) return 0;
+        if (part1.startsWith("dev")) return part2.startsWith("dev") ? 0 : -1;
+        if (part2.startsWith("dev")) return 1;
+        if (part1.equals("SNAPSHOT")) return part2.equals("SNAPSHOT") ? 0 : -1;
+        if (part2.equals("SNAPSHOT")) return 1;
+        return part1.compareTo(part2);
+    }
+
+    private int compareSpecialVersions(String[] v1Parts, String[] v2Parts) {
+        if (v1Parts.length > v2Parts.length) {
+            String specialPart = v1Parts[v2Parts.length];
+            if (specialPart.startsWith("dev")) return -1;
+            if (specialPart.equals("SNAPSHOT")) return -1;
+            return 1; // Assume it's a release version part
+        } else {
+            String specialPart = v2Parts[v1Parts.length];
+            if (specialPart.startsWith("dev")) return 1;
+            if (specialPart.equals("SNAPSHOT")) return 1;
+            return -1; // Assume it's a release version part
+        }
+    }
+
+    public abstract void saveDefaultConfig();
+
+    public abstract PermissionChecker getPermissionChecker();
+
+}
+
+
@@ -0,0 +1,82 @@
+package me.caseload.knockbacksync;
+
+import me.caseload.knockbacksync.util.NumberConversions;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+public class ConfigWrapper {
+    private final Map<String, Object> configMap;
+
+    public ConfigWrapper(Map<String, Object> configMap) {
+        this.configMap = configMap;
+    }
+
+    public String getString(String path, String def) {
+        Object value = getValue(path);
+        return value instanceof String ? (String) value : def;
+    }
+
+    public boolean getBoolean(String path, boolean def) {
+        Object value = getValue(path);
+        return value instanceof Boolean ? (Boolean) value : def;
+    }
+
+    public int getInt(String path, int def) {
+        Object value = getValue(path);
+        return NumberConversions.toInt(value, def);
+    }
+
+    public long getLong(String path, long def) {
+        Object value = getValue(path);
+        return NumberConversions.toLong(value, def);
+    }
+
+    public void set(String path, Object value) {
+        setValue(path, value);
+    }
+
+    private Object getValue(String path) {
+        String[] parts = path.split("\\.");
+        Object current = configMap;
+        for (String part : parts) {
+            if (current instanceof Map) {
+                current = ((Map<?, ?>) current).get(part);
+            } else {
+                return null; // Path not found
+            }
+        }
+        return current;
+    }
+
+    private void setValue(String path, Object value) {
+        String[] parts = path.split("\\.");
+        Map<String, Object> current = configMap;
+        for (int i = 0; i < parts.length - 1; i++) {
+            String part = parts[i];
+            if (!current.containsKey(part) || !(current.get(part) instanceof Map)) {
+                current.put(part, new HashMap<>());
+            }
+            current = (Map<String, Object>) current.get(part);
+        }
+        current.put(parts[parts.length - 1], value);
+    }
+
+    public boolean contains(String path) {
+        return getValue(path) != null;
+    }
+
+    public Object get(String path) {
+        return getValue(path);
+    }
+
+    public Set<String> getKeys(String path) {
+        Object value = getValue(path);
+        if (value instanceof Map) {
+            return ((Map<String, Object>) value).keySet();
+        }
+        return new HashSet<>();
+    }
+}
@@ -0,0 +1,7 @@
+package me.caseload.knockbacksync;
+
+public enum Platform {
+    FABRIC,
+    BUKKIT,
+    FOLIA
+}
@@ -0,0 +1,22 @@
+package me.caseload.knockbacksync.command;
+
+import me.caseload.knockbacksync.command.generic.BuilderCommand;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.util.ChatUtil;
+import org.incendo.cloud.CommandManager;
+
+public class MainCommand implements BuilderCommand {
+    public void register(CommandManager<Sender> manager) {
+        manager.command(
+                manager.commandBuilder("knockbacksync", "kbsync", "kbs")
+                        .handler(context -> {
+                            context.sender().sendMessage(
+                                    ChatUtil.translateAlternateColorCodes(
+                                            '&',
+                                            "&6This server is running the &eKnockbackSync &6plugin. &bhttps://github.com/CASELOAD7000/knockback-sync"
+                                    )
+                            );
+                        })
+        );
+    }
+}
@@ -0,0 +1,23 @@
+package me.caseload.knockbacksync.command.generic;
+
+import org.incendo.cloud.context.CommandContext;
+import org.incendo.cloud.parser.ParserDescriptor;
+
+import java.util.concurrent.CompletableFuture;
+
+public abstract class AbstractPlayerSelectorParser<C> {
+
+    public abstract ParserDescriptor<C, PlayerSelector> descriptor();
+
+    protected abstract ParserDescriptor<C, ?> getPlatformSpecificDescriptor();
+
+    protected abstract CompletableFuture<PlayerSelector> adaptToCommonSelector(CommandContext<C> context, Object platformSpecificSelector);
+
+    // Helper method to create the ParserDescriptor
+    protected ParserDescriptor<C, PlayerSelector> createDescriptor() {
+        return ParserDescriptor.of(
+                getPlatformSpecificDescriptor().parser().mapSuccess(this::adaptToCommonSelector),
+                PlayerSelector.class
+        );
+    }
+}
@@ -0,0 +1,9 @@
+package me.caseload.knockbacksync.command.generic;
+
+import me.caseload.knockbacksync.sender.Sender;
+import org.incendo.cloud.CommandManager;
+
+public interface BuilderCommand {
+
+    void register(CommandManager<Sender> manager);
+}
@@ -0,0 +1,15 @@
+package me.caseload.knockbacksync.command.generic;
+
+import me.caseload.knockbacksync.player.PlatformPlayer;
+
+import java.util.Collection;
+
+public interface PlayerSelector {
+    boolean isSingle();
+
+    PlatformPlayer getSinglePlayer(); // Throws an exception if not a single selection
+
+    Collection<PlatformPlayer> getPlayers();
+
+    String inputString();
+}
@@ -0,0 +1,44 @@
+package me.caseload.knockbacksync.command.subcommand;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.command.generic.BuilderCommand;
+import me.caseload.knockbacksync.command.generic.PlayerSelector;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.util.ChatUtil;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.permission.PredicatePermission;
+
+import java.util.function.Predicate;
+
+public class PingCommand implements BuilderCommand {
+    public void register(CommandManager<Sender> manager) {
+        manager.command(
+            manager.commandBuilder("knockbacksync", "kbsync", "kbs")
+                .permission((sender -> {
+                    final String permission = "knockbacksync.ping";
+                    Predicate<Sender> senderPredicate = (s) -> {
+                        return s.hasPermission(permission, true);
+                    };
+
+                    return PredicatePermission.of(senderPredicate).testPermission(sender);
+                }))
+                .literal("ping")
+                .optional("target", Base.INSTANCE.getPlayerSelectorParser().descriptor())
+                .handler(context -> {
+                    PlayerSelector targetSelector = context.getOrDefault("target", null);
+
+                    if (targetSelector == null) {
+                        if (context.sender().isConsole()) {
+                            context.sender().sendMessage("You must specify a player to use this command from the console.");
+                        } else {
+                            context.sender().sendMessage(ChatUtil.getPingMessage(context.sender().getUniqueId(), null));
+                        }
+                    } else {
+                        context.sender().sendMessage(ChatUtil.getPingMessage(context.sender().getUniqueId(), targetSelector.getSinglePlayer().getUUID()));
+                    }
+                })
+        );
+    }
+
+
+}
@@ -0,0 +1,50 @@
+package me.caseload.knockbacksync.command.subcommand;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.command.generic.BuilderCommand;
+import me.caseload.knockbacksync.event.events.ConfigReloadEvent;
+import me.caseload.knockbacksync.event.KBSyncEventHandler;
+import me.caseload.knockbacksync.manager.ConfigManager;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.util.ChatUtil;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.permission.PredicatePermission;
+
+import java.util.function.Predicate;
+
+public class ReloadCommand implements BuilderCommand {
+
+    private final ConfigManager configManager = Base.INSTANCE.getConfigManager();
+    private String rawReloadMessage = configManager.getConfigWrapper().getString("reload_message", "&aSuccessfully reloaded KnockbackSync.");
+
+    public void register(CommandManager<Sender> manager) {
+        manager.command(
+            manager.commandBuilder("knockbacksync", "kbsync", "kbs")
+                    .literal("reload")
+                    .permission((sender -> {
+                        final String permission = "knockbacksync.reload";
+                        Predicate<Sender> senderPredicate = (s) -> {
+                            return s.hasPermission(permission, false);
+                        };
+
+                            return PredicatePermission.of(senderPredicate).testPermission(sender);
+                        }))
+                        .handler(context -> {
+                            configManager.loadConfig(true);
+
+                            // Fire the ConfigReloadEvent
+                            new ConfigReloadEvent(configManager).post();
+
+                            String reloadMessage = ChatUtil.translateAlternateColorCodes('&', rawReloadMessage);
+
+                            context.sender().sendMessage(reloadMessage);
+                        })
+        );
+        Base.INSTANCE.getSimpleEventBus().registerListeners(this);
+    }
+
+    @KBSyncEventHandler
+    public void onConfigReload(ConfigReloadEvent event) {
+        rawReloadMessage = event.getConfigManager().getConfigWrapper().getString("reload_message", "&aSuccessfully reloaded KnockbackSync.");
+    }
+}
@@ -0,0 +1,106 @@
+package me.caseload.knockbacksync.command.subcommand;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.ConfigWrapper;
+import me.caseload.knockbacksync.command.generic.BuilderCommand;
+import me.caseload.knockbacksync.command.generic.PlayerSelector;
+import me.caseload.knockbacksync.event.events.ConfigReloadEvent;
+import me.caseload.knockbacksync.event.KBSyncEventHandler;
+import me.caseload.knockbacksync.manager.ConfigManager;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.util.ChatUtil;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.permission.PredicatePermission;
+
+import java.util.UUID;
+import java.util.function.Predicate;
+
+public class StatusCommand implements BuilderCommand {
+
+    private static final ConfigManager configManager = Base.INSTANCE.getConfigManager();
+    private static final String STATUS_SELF_PERMISSION = "knockbacksync.status.self";
+    private static final String STATUS_OTHER_PERMISSION = "knockbacksync.status.other";
+
+    private String globalStatusMessage;
+    private String playerStatusMessage;
+    private String playerDisabledGlobalMessage;
+
+    public StatusCommand() {
+        updateConfigValues();
+    }
+
+    public void register(CommandManager<Sender> manager) {
+        manager.command(
+                manager.commandBuilder("knockbacksync", "kbsync", "kbs")
+                        .literal("status")
+                        .optional("target", Base.INSTANCE.getPlayerSelectorParser().descriptor())
+                        .permission((sender -> {
+                            Predicate<Sender> senderPredicate = (s) -> {
+                                return s.hasPermission(STATUS_SELF_PERMISSION, true) || sender.hasPermission(STATUS_OTHER_PERMISSION, false);
+                            };
+
+                            return PredicatePermission.of(senderPredicate).testPermission(sender);
+                        }))
+                        .handler(context -> {
+                            Sender sender = context.sender();
+                            PlayerSelector targetSelector = context.getOrDefault("target", null);
+                            if (targetSelector == null) {
+                                // Show global status
+                                boolean globalStatus = configManager.isToggled();
+                                sender.sendMessage(ChatUtil.translateAlternateColorCodes('&', globalStatusMessage) +
+                                        (globalStatus
+                                                ? ChatUtil.translateAlternateColorCodes('&', "&aEnabled")
+                                                : ChatUtil.translateAlternateColorCodes('&', "&cDisabled")));
+
+                                    if (sender.hasPermission(STATUS_SELF_PERMISSION, true)) {
+                                        // Show player status for the sender (no target specified)
+                                        if (!sender.isConsole()) {
+                                            showPlayerStatus(sender, Base.INSTANCE.platformServer.getPlayer(sender.getUniqueId()));
+                                        }
+                                    } else {
+                                        sender.sendMessage(ChatUtil.translateAlternateColorCodes('&', "&cYou do not have permisssion to check your knockbacksync status."));
+                                    }
+                            } else {
+                                if (sender.hasPermission(STATUS_OTHER_PERMISSION, true)) {
+                                    PlatformPlayer target = targetSelector.getSinglePlayer();
+                                    showPlayerStatus(sender, target);
+                                } else {
+                                    sender.sendMessage(ChatUtil.translateAlternateColorCodes('&', "&cYou do not have permission to check the status of other players!"));
+                                }
+                            }
+                        })
+        );
+        Base.INSTANCE.getSimpleEventBus().registerListeners(this);
+    }
+
+    private void showPlayerStatus(Sender sender, PlatformPlayer target) {
+        boolean globalStatus = configManager.isToggled();
+        UUID uuid = target.getUUID();
+        boolean playerStatus = PlayerDataManager.containsPlayerData(uuid);
+
+        String statusMessage = ChatUtil.translateAlternateColorCodes('&', playerStatusMessage.replace("%player%", target.getName()));
+
+        if (!globalStatus) {
+            sender.sendMessage(statusMessage + ChatUtil.translateAlternateColorCodes('&', playerDisabledGlobalMessage));
+        } else {
+            sender.sendMessage(statusMessage +
+                    (playerStatus
+                            ? ChatUtil.translateAlternateColorCodes('&', "&aEnabled")
+                            : ChatUtil.translateAlternateColorCodes('&', "&cDisabled")));
+        }
+    }
+
+    @KBSyncEventHandler
+    public void onConfigReload(ConfigReloadEvent event) {
+        updateConfigValues();
+    }
+
+    private void updateConfigValues() {
+        ConfigWrapper config = configManager.getConfigWrapper();
+        this.globalStatusMessage = config.getString("global_status_message", "&eGlobal KnockbackSync status: ");
+        this.playerStatusMessage = config.getString("player_status_message", "&e%player%'s KnockbackSync status: ");
+        this.playerDisabledGlobalMessage = config.getString("player_disabled_global_message", "&cDisabled (Global toggle is off)");
+    }
+}
@@ -0,0 +1,120 @@
+package me.caseload.knockbacksync.command.subcommand;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.command.generic.BuilderCommand;
+import me.caseload.knockbacksync.command.generic.PlayerSelector;
+import me.caseload.knockbacksync.event.events.ToggleOnOffEvent;
+import me.caseload.knockbacksync.manager.ConfigManager;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.permission.PermissionChecker;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.player.PlayerData;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.util.ChatUtil;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.permission.PredicatePermission;
+
+import java.util.UUID;
+import java.util.function.Predicate;
+
+public class ToggleCommand implements BuilderCommand {
+
+    private static final ConfigManager configManager = Base.INSTANCE.getConfigManager();
+    private static final PermissionChecker permissionChecker = Base.INSTANCE.getPermissionChecker();
+    private static final String TOGGLE_GLOBAL_PERMISSION = "knockbacksync.toggle.global";
+    private static final String TOGGLE_SELF_PERMISSION = "knockbacksync.toggle.self";
+    private static final String TOGGLE_OTHER_PERMISSION = "knockbacksync.toggle.other";
+
+
+    @Override
+    public void register(CommandManager<Sender> manager) {
+        manager.command(
+            manager.commandBuilder("knockbacksync", "kbsync", "kbs")
+                .literal("toggle")
+                .optional("target", Base.INSTANCE.getPlayerSelectorParser().descriptor())
+                    .permission((sender -> {
+                        Predicate<Sender> senderPredicate = (s) -> {
+                            return s.hasPermission(TOGGLE_GLOBAL_PERMISSION, false)
+                                    || sender.hasPermission(TOGGLE_SELF_PERMISSION, false)
+                                    || sender.hasPermission(TOGGLE_OTHER_PERMISSION, false);
+                        };
+
+                        return PredicatePermission.of(senderPredicate).testPermission(sender);
+                    }))
+                .handler(context -> {
+                    Sender sender = context.sender();
+                    PlayerSelector targetSelector = context.getOrDefault("target", null);
+                    if (targetSelector == null) {
+                        // Global toggle
+                        if (permissionChecker.hasPermission(sender, TOGGLE_GLOBAL_PERMISSION, false)) {
+                            toggleGlobalKnockback(configManager, sender);
+                        } else {
+                            sender.sendMessage(ChatUtil.translateAlternateColorCodes('&', "&cYou don't have permission to toggle the global setting."));
+                        }
+                    } else {
+                        PlatformPlayer target = targetSelector.getSinglePlayer();
+                        boolean senderIsTarget = sender.getUniqueId() == target.getUUID();
+                        if (!senderIsTarget && !permissionChecker.hasPermission(sender, TOGGLE_OTHER_PERMISSION, false)) {
+                            sender.sendMessage("You do not have permission to toggle the knockback of other player's.");
+                            return;
+                        } else if (senderIsTarget && !permissionChecker.hasPermission(sender, TOGGLE_SELF_PERMISSION, true)) {
+                            sender.sendMessage("You do not have permission to toggle your knockback.");
+                            return;
+                        }
+
+                        if (!configManager.isToggled()) {
+                            sender.sendMessage(ChatUtil.translateAlternateColorCodes('&', "&cKnockbacksync is currently disabled on this server. Contact your server administrator for more information."));
+                        } else {
+                            togglePlayerKnockback(target, configManager, sender);
+                        }
+                    }
+                })
+        );
+    }
+
+
+    private static void toggleGlobalKnockback(ConfigManager configManager, Sender sender) {
+        boolean toggledState = !configManager.isToggled();
+        ToggleOnOffEvent toggleOnOffEvent = new ToggleOnOffEvent(toggledState);
+        toggleOnOffEvent.post();
+        if (toggleOnOffEvent.isCancelled())
+            return;
+
+        toggledState = toggleOnOffEvent.getStatus();
+        configManager.setToggled(toggledState);
+
+        Base.INSTANCE.getConfigManager().getConfigWrapper().set("enabled", toggledState);
+        Base.INSTANCE.getConfigManager().saveConfig();
+
+        String message = ChatUtil.translateAlternateColorCodes('&',
+                toggledState ? configManager.getEnableMessage() : configManager.getDisableMessage()
+        );
+        sender.sendMessage(ChatUtil.translateAlternateColorCodes('&', message));
+    }
+
+    private static void togglePlayerKnockback(PlatformPlayer target, ConfigManager configManager, Sender sender) {
+        UUID uuid = target.getUUID();
+
+        if (PlayerDataManager.shouldExempt(uuid)) {
+            String message = ChatUtil.translateAlternateColorCodes('&',
+                    configManager.getPlayerIneligibleMessage()
+            ).replace("%player%", target.getName());
+
+            sender.sendMessage(message);
+            return;
+        }
+
+        boolean hasPlayerData = PlayerDataManager.containsPlayerData(uuid);
+        if (hasPlayerData)
+            PlayerDataManager.removePlayerData(uuid);
+        else {
+            PlayerDataManager.addPlayerData(uuid, new PlayerData(Base.INSTANCE.platformServer.getPlayer(uuid)));
+        }
+
+        String message = ChatUtil.translateAlternateColorCodes('&',
+                hasPlayerData ? configManager.getPlayerDisableMessage() : configManager.
+                        getPlayerEnableMessage()
+        ).replace("%player%", target.getName());
+
+        sender.sendMessage(message);
+    }
+}
@@ -0,0 +1,59 @@
+package me.caseload.knockbacksync.command.subcommand;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.ConfigWrapper;
+import me.caseload.knockbacksync.command.generic.BuilderCommand;
+import me.caseload.knockbacksync.event.KBSyncEventHandler;
+import me.caseload.knockbacksync.event.events.ConfigReloadEvent;
+import me.caseload.knockbacksync.manager.ConfigManager;
+import me.caseload.knockbacksync.sender.Sender;
+import me.caseload.knockbacksync.util.ChatUtil;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.permission.PredicatePermission;
+
+import java.util.function.Predicate;
+
+public class ToggleOffGroundSubcommand implements BuilderCommand {
+
+    private String enableOffGroundSyncMessage;
+    private String disableOffGroundSyncMessage;
+    private boolean offGroundSyncEnabled;
+
+    public ToggleOffGroundSubcommand() {
+        loadConfigSettings();
+    }
+
+    public void register(CommandManager<Sender> manager) {
+        manager.command(
+            manager.commandBuilder("knockbacksync", "kbsync", "kbs")
+                .literal("toggleoffground")
+                .permission((sender -> {
+                    final String permission = "knockbacksync.toggleoffground";
+                    Predicate<Sender> senderPredicate = (s) -> {
+                        return s.hasPermission(permission, false);
+                    };
+
+                    return PredicatePermission.of(senderPredicate).testPermission(sender);
+                }))
+                .handler(commandContext -> {
+                    boolean toggledState = !offGroundSyncEnabled;
+                    Base.INSTANCE.getConfigManager().getConfigWrapper().set("enable_offground_synchronization", toggledState);
+                    Base.INSTANCE.getConfigManager().saveConfig();
+                    String message = ChatUtil.translateAlternateColorCodes('&',
+                            toggledState ? enableOffGroundSyncMessage : disableOffGroundSyncMessage);
+                    commandContext.sender().sendMessage(message);
+                }));
+    }
+
+    @KBSyncEventHandler
+    public void onConfigReloadEvent(ConfigReloadEvent event) {
+        loadConfigSettings();
+    }
+
+    private void loadConfigSettings() {
+        ConfigWrapper configWrapper = Base.INSTANCE.getConfigManager().getConfigWrapper();
+        offGroundSyncEnabled = configWrapper.getBoolean("enable_offground_synchronization", false);
+        enableOffGroundSyncMessage = configWrapper.getString("enable_offground_synchronization_message", "&aSuccessfully enabled offground experiment.");
+        disableOffGroundSyncMessage = configWrapper.getString("disable_offground_synchronization_message", "&cSuccessfully disabled offground experiment.");
+    }
+}
@@ -0,0 +1,177 @@
+package me.caseload.knockbacksync.config;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.yaml.snakeyaml.DumperOptions;
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.*;
+
+public class YamlConfiguration {
+    private final File file;
+    private final Yaml yaml;
+    @Getter
+    @Setter
+    private Map<String, Object> data;
+    private String fileContents;
+
+    public YamlConfiguration(File file) {
+        this.file = file;
+        DumperOptions options = new DumperOptions();
+        options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
+        options.setPrettyFlow(true);
+        options.setWidth(Integer.MAX_VALUE);
+        this.yaml = new Yaml(options);
+    }
+
+    public void load() throws IOException {
+        if (!file.exists()) {
+            data = new LinkedHashMap<>();
+            return;
+        }
+
+        fileContents = new String(Files.readAllBytes(file.toPath()), StandardCharsets.UTF_8);
+        data = yaml.load(fileContents);
+        if (data == null) {
+            data = new LinkedHashMap<>();
+        }
+    }
+
+    public void save() throws IOException {
+        if (!file.exists()) {
+            file.getParentFile().mkdirs();
+            file.createNewFile();
+        }
+
+        String dump = yaml.dump(data);
+
+        if (fileContents != null) {
+            Map<String, YamlElement> oldElements = parseYaml(fileContents);
+            Map<String, YamlElement> newElements = parseYaml(dump);
+
+            StringBuilder result = new StringBuilder();
+            buildOutput(oldElements, newElements, result);
+            dump = result.toString();
+        }
+
+        try (Writer writer = new OutputStreamWriter(Files.newOutputStream(file.toPath()), StandardCharsets.UTF_8)) {
+            writer.write(dump);
+        }
+    }
+
+    private static class YamlElement {
+        String key;
+        String value;
+        int indent;
+        boolean isComment;
+        List<YamlElement> children = new ArrayList<>();
+
+        YamlElement(String line, int indent) {
+            this.indent = indent;
+            if (line.trim().startsWith("#")) {
+                this.isComment = true;
+                this.value = line;
+            } else {
+                this.isComment = false;
+                String[] parts = line.split(":", 2);
+                this.key = parts[0].trim();
+                this.value = parts.length > 1 ? parts[1].trim() : "";
+            }
+        }
+    }
+
+    private Map<String, YamlElement> parseYaml(String content) {
+        Map<String, YamlElement> elements = new LinkedHashMap<>();
+        Stack<YamlElement> stack = new Stack<>();
+        String[] lines = content.split("\n");
+
+        for (String line : lines) {
+            if (line.trim().isEmpty()) continue;
+
+            int indent = getIndentation(line);
+            YamlElement element = new YamlElement(line, indent);
+
+            while (!stack.isEmpty() && stack.peek().indent >= indent) {
+                stack.pop();
+            }
+
+            if (stack.isEmpty()) {
+                if (!element.isComment) {
+                    elements.put(element.key, element);
+                } else {
+                    elements.put("comment" + elements.size(), element);
+                }
+            } else {
+                stack.peek().children.add(element);
+            }
+
+            if (!element.isComment && element.value.isEmpty()) {
+                stack.push(element);
+            }
+        }
+
+        return elements;
+    }
+
+    private void buildOutput(Map<String, YamlElement> oldElements, Map<String, YamlElement> newElements, StringBuilder result) {
+        for (YamlElement element : oldElements.values()) {
+            if (element.isComment) {
+                result.append(element.value).append("\n");
+            } else {
+                YamlElement newElement = newElements.get(element.key);
+                if (newElement != null) {
+                    String indent = createIndent(element.indent);
+                    result.append(indent).append(element.key).append(":");
+
+                    if (!newElement.value.isEmpty()) {
+                        result.append(" ").append(newElement.value);
+                    }
+                    result.append("\n");
+
+                    if (!element.children.isEmpty()) {
+                        Map<String, YamlElement> oldChildren = new LinkedHashMap<>();
+                        Map<String, YamlElement> newChildren = new LinkedHashMap<>();
+
+                        for (YamlElement child : element.children) {
+                            if (!child.isComment) {
+                                oldChildren.put(child.key, child);
+                            } else {
+                                oldChildren.put("comment" + oldChildren.size(), child);
+                            }
+                        }
+
+                        for (YamlElement child : newElement.children) {
+                            if (!child.isComment) {
+                                newChildren.put(child.key, child);
+                            }
+                        }
+
+                        buildOutput(oldChildren, newChildren, result);
+                    }
+                }
+            }
+        }
+    }
+
+    private int getIndentation(String line) {
+        int indent = 0;
+        while (indent < line.length() && line.charAt(indent) == ' ') {
+            indent++;
+        }
+        return indent;
+    }
+
+    private String createIndent(int count) {
+        StringBuilder sb = new StringBuilder(count);
+        for (int i = 0; i < count; i++) {
+            sb.append(' ');
+        }
+        return sb.toString();
+    }
+}
@@ -0,0 +1,23 @@
+package me.caseload.knockbacksync.event;
+
+import lombok.Setter;
+import me.caseload.knockbacksync.event.OptimizedEventBus;
+
+public abstract class Event {
+    @Setter
+    private static EventBus eventBus;
+    @Setter
+    private boolean cancelled = false;
+
+    public void post() {
+        if (eventBus != null) {
+            eventBus.post(this);
+        } else {
+            throw new IllegalStateException("EventBus has not been set");
+        }
+    }
+
+    public boolean isCancelled() {
+        return cancelled;
+    }
+}
@@ -0,0 +1,13 @@
+package me.caseload.knockbacksync.event;
+
+public interface EventBus {
+    void registerListeners(Object listener);
+
+    void registerStaticListeners(Class<?> clazz);
+
+    void unregisterListeners(Object listener);
+
+    void unregisterStaticListeners(Class<?> clazz);
+
+    void post(Event event);
+}
@@ -0,0 +1,12 @@
+package me.caseload.knockbacksync.event;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.METHOD)
+public @interface KBSyncEventHandler {
+    int priority() default 0;
+}
@@ -0,0 +1,97 @@
+package me.caseload.knockbacksync.event;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class OptimizedEventBus implements EventBus {
+    private final Map<Class<? extends Event>, List<OptimizedListener>> listenerMap = new HashMap<>();
+    private final MethodHandles.Lookup lookup = MethodHandles.lookup();
+
+    @Override
+    public void registerListeners(Object listener) {
+        registerMethods(listener, listener.getClass());
+    }
+
+    @Override
+    public void registerStaticListeners(Class<?> clazz) {
+        registerMethods(null, clazz);
+    }
+
+    private void registerMethods(Object instance, Class<?> clazz) {
+        for (Method method : clazz.getDeclaredMethods()) {
+            KBSyncEventHandler annotation = method.getAnnotation(KBSyncEventHandler.class);
+            if (annotation != null && method.getParameterCount() == 1) {
+                Class<?> eventType = method.getParameterTypes()[0];
+                if (Event.class.isAssignableFrom(eventType)) {
+                    try {
+                        // Skip instance methods when registering static listeners
+                        if (instance == null && !Modifier.isStatic(method.getModifiers())) {
+                            continue;
+                        }
+
+                        MethodHandle handle = lookup.unreflect(method);
+                        OptimizedListener optimizedListener = new OptimizedListener(instance, handle, annotation.priority(), method.getDeclaringClass());
+                        listenerMap.computeIfAbsent((Class<? extends Event>) eventType, k -> new ArrayList<>()).add(optimizedListener);
+                    } catch (IllegalAccessException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+        // Sort listeners by priority
+        listenerMap.values().forEach(list -> list.sort((a, b) -> Integer.compare(b.priority, a.priority)));
+    }
+
+    @Override
+    public void unregisterListeners(Object listener) {
+        listenerMap.values().forEach(list -> list.removeIf(l -> l.instance == listener));
+    }
+
+    @Override
+    public void unregisterStaticListeners(Class<?> clazz) {
+        listenerMap.values().forEach(list -> list.removeIf(l -> l.instance == null && l.declaringClass == clazz));
+    }
+
+    @Override
+    public void post(Event event) {
+        List<OptimizedListener> listeners = listenerMap.get(event.getClass());
+        if (listeners != null) {
+            for (OptimizedListener listener : listeners) {
+                try {
+                    if (listener.instance != null) {
+                        // Instance method
+                        listener.handle.invoke(listener.instance, event);
+                    } else {
+                        // Static method
+                        listener.handle.invoke(event);
+                    }
+                    if (event.isCancelled()) {
+                        break;
+                    }
+                } catch (Throwable throwable) {
+                    throwable.printStackTrace();
+                }
+            }
+        }
+    }
+
+    private static class OptimizedListener {
+        final Object instance; // null for static methods
+        final MethodHandle handle;
+        final int priority;
+        final Class<?> declaringClass;
+
+        OptimizedListener(Object instance, MethodHandle handle, int priority, Class<?> declaringClass) {
+            this.instance = instance;
+            this.handle = handle;
+            this.priority = priority;
+            this.declaringClass = declaringClass;
+        }
+    }
+}
@@ -0,0 +1,15 @@
+package me.caseload.knockbacksync.event.events;
+
+import lombok.Getter;
+import me.caseload.knockbacksync.event.Event;
+import me.caseload.knockbacksync.manager.ConfigManager;
+
+@Getter
+public class ConfigReloadEvent extends Event {
+    private final ConfigManager configManager;
+
+    public ConfigReloadEvent(ConfigManager configManager) {
+        this.configManager = configManager;
+    }
+
+}
@@ -0,0 +1,24 @@
+package me.caseload.knockbacksync.event.events;
+
+import me.caseload.knockbacksync.event.Event;
+
+public class ToggleOnOffEvent extends Event {
+
+    private boolean newEnabledState;
+
+    public ToggleOnOffEvent(boolean newEnabledState) {
+        this.newEnabledState = newEnabledState;
+    }
+
+    public boolean getStatus() {
+        return newEnabledState;
+    }
+
+    public void setStatus(boolean newEnabledState) {
+        this.newEnabledState = newEnabledState;
+    }
+    @Override
+    public void setCancelled(boolean cancelled) {
+        super.setCancelled(cancelled);
+    }
+}
@@ -0,0 +1,24 @@
+package me.caseload.knockbacksync.listener;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.player.PlayerData;
+
+public abstract class PlayerDamageListener {
+    public void onPlayerDamage(PlatformPlayer victim, PlatformPlayer attacker) {
+        if (!Base.INSTANCE.getConfigManager().isToggled())
+            return;
+
+        PlayerData playerData = PlayerDataManager.getPlayerData(victim.getUUID());
+        if (playerData == null)
+            return;
+
+        playerData.setVerticalVelocity(playerData.calculateVerticalVelocity(attacker)); // do not move this calculation
+        playerData.setLastDamageTicks(victim.getNoDamageTicks());
+        playerData.updateCombat();
+
+        if (!Base.INSTANCE.getConfigManager().isRunnableEnabled())
+            playerData.sendPing(false);
+    }
+}
@@ -0,0 +1,33 @@
+package me.caseload.knockbacksync.listener;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.player.PlayerData;
+import me.caseload.knockbacksync.util.ChatUtil;
+
+import java.util.UUID;
+
+public abstract class PlayerJoinQuitListener {
+    public void onPlayerJoin(PlayerData player) {
+        PlayerDataManager.addPlayerData(player.getUuid(), player);
+        PlatformPlayer platformPlayer = player.getPlatformPlayer();
+
+        if (Base.INSTANCE.getConfigManager().isUpdateAvailable() && Base.INSTANCE.getConfigManager().isNotifyUpdate() && Base.INSTANCE.getPermissionChecker().hasPermission(platformPlayer, "knockbacksync.update"))
+            platformPlayer.sendMessage(ChatUtil.translateAlternateColorCodes(
+                    '&',
+                    "&6An updated version of &eKnockbackSync &6is now available for download at: &bhttps://github.com/CASELOAD7000/knockback-sync/releases/latest"
+            ));
+    }
+
+    public void onPlayerQuit(UUID uuid) {
+        PlayerData playerData = PlayerDataManager.getPlayerData(uuid);
+        if (playerData == null)
+            return;
+
+        if (playerData.isInCombat())
+            playerData.quitCombat();
+
+        PlayerDataManager.removePlayerData(uuid);
+    }
+}
@@ -0,0 +1,50 @@
+package me.caseload.knockbacksync.listener;
+
+import com.github.retrooper.packetevents.protocol.world.states.WrappedBlockState;
+import com.github.retrooper.packetevents.protocol.world.states.type.StateTypes;
+import com.github.retrooper.packetevents.util.Vector3d;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.player.PlayerData;
+
+public abstract class PlayerKnockbackListener {
+
+    public void onPlayerVelocity(PlatformPlayer victim, Vector3d velocity) {
+        if (!Base.INSTANCE.getConfigManager().isToggled())
+            return;
+
+        PlayerData victimPlayerData = PlayerDataManager.getPlayerData(victim.getUUID());
+        if (victimPlayerData == null)
+            return;
+
+/*        Integer damageTicks = playerData.getLastDamageTicks();
+        if (damageTicks != null && damageTicks > 8)
+            return;*/
+
+        if (victimPlayerData.getNotNullPing() < PlayerData.PING_OFFSET)
+            return;
+
+        double distanceToGround = victimPlayerData.getDistanceToGround();
+        if (distanceToGround <= 0)
+            return; // minecraft already does the work for us
+
+        WrappedBlockState blockState = victim.getWorld().getBlockStateAt(victim.getLocation());
+        if (victim.isGliding() ||
+                blockState.getType() == StateTypes.WATER ||
+                blockState.getType() == StateTypes.LAVA ||
+                blockState.getType() == StateTypes.COBWEB ||
+                blockState.getType() == StateTypes.SCAFFOLDING)
+            return;
+
+        Vector3d adjustedVelocity;
+        if (victimPlayerData.isOnGroundClientSide(velocity.getY(), distanceToGround))
+            adjustedVelocity = velocity.withY(victimPlayerData.getVerticalVelocity()); // Should be impossible to produce a NPE in this context
+        else if (victimPlayerData.isOffGroundSyncEnabled())
+            adjustedVelocity = velocity.withY(victimPlayerData.getCompensatedOffGroundVelocity());
+        else
+            return;
+
+        victim.setVelocity(adjustedVelocity);
+    }
+}
@@ -0,0 +1,103 @@
+package me.caseload.knockbacksync.listener.packetevents;
+
+import com.github.retrooper.packetevents.event.PacketListenerAbstract;
+import com.github.retrooper.packetevents.event.PacketSendEvent;
+import com.github.retrooper.packetevents.protocol.attribute.Attributes;
+import com.github.retrooper.packetevents.protocol.packettype.PacketType;
+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerUpdateAttributes;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlayerData;
+import me.caseload.knockbacksync.util.MathUtil;
+
+import java.util.List;
+import java.util.UUID;
+
+public class AttributeChangeListener extends PacketListenerAbstract {
+
+    public static final UUID SPRINTING_MODIFIER_UUID =
+            UUID.fromString("662A6B8D-DA3E-4C1C-8813-96EA6097278D");
+
+    final double minGravity = -1;
+    final double maxGravity = 1;
+    final double defaultGravity = 0.08;
+    double currentGravity;
+
+    public AttributeChangeListener() {
+        currentGravity = defaultGravity;
+    }
+
+    @Override
+    public void onPacketSend(PacketSendEvent event) {
+        if (!Base.INSTANCE.getConfigManager().isToggled()) return;
+
+        if (event.getPacketType() == PacketType.Play.Server.UPDATE_ATTRIBUTES) {
+
+            WrapperPlayServerUpdateAttributes packet = new WrapperPlayServerUpdateAttributes(event);
+
+            UUID uuid = event.getUser().getUUID();
+            if (!PlayerDataManager.containsPlayerData(uuid))
+                return;
+
+            // Get the attributes from the packet
+            for (WrapperPlayServerUpdateAttributes.Property property : packet.getProperties()) {
+                // You can now check for specific attributes
+                if (property.getAttribute().equals(Attributes.GENERIC_GRAVITY)) {
+                    onPlayerGravityChange(uuid, calculateValueWithModifiers(property));
+                } else if (property.getAttribute().equals(Attributes.GENERIC_KNOCKBACK_RESISTANCE)) {
+                    onPlayerKnockBackChange(uuid, calculateValueWithModifiers(property));
+                }
+            }
+        }
+    }
+
+    public double calculateValueWithModifiers(WrapperPlayServerUpdateAttributes.Property property) {
+        double baseValue = property.getValue();
+        double additionSum = 0;
+        double multiplyBaseSum = 0;
+        double multiplyTotalProduct = 1.0;
+
+        List<WrapperPlayServerUpdateAttributes.PropertyModifier> modifiers = property.getModifiers();
+        // TODO, account for https://bugs.mojang.com/browse/MC-69459 ?
+        // modifiers.removeIf(modifier -> modifier.getUUID().equals(SPRINTING_MODIFIER_UUID) || modifier.getName().getKey().equals("sprinting"));
+
+        for (WrapperPlayServerUpdateAttributes.PropertyModifier modifier : modifiers) {
+            switch (modifier.getOperation()) {
+                case ADDITION:
+                    additionSum += modifier.getAmount();
+                    break;
+                case MULTIPLY_BASE:
+                    multiplyBaseSum += modifier.getAmount();
+                    break;
+                case MULTIPLY_TOTAL:
+                    multiplyTotalProduct *= (1.0 + modifier.getAmount());
+                    break;
+            }
+        }
+
+        double newValue = (baseValue + additionSum) * (1 + multiplyBaseSum) * multiplyTotalProduct;
+        newValue = MathUtil.clamp(newValue, minGravity, maxGravity);
+
+        if (newValue < minGravity || newValue > maxGravity)
+            throw new IllegalArgumentException("New value must be between min and max!");
+
+        return this.currentGravity = newValue;
+    }
+
+    // Yes this is not properly latency compensated, that would require including a proper simulation engine
+    // Laggy players will just have to deal with being on the wrong gravity for a few hundred ms, too bad!
+    public void onPlayerGravityChange(UUID uuid, double newGravity) {
+        PlayerData playerData = PlayerDataManager.getPlayerData(uuid);
+        if (playerData.getClientVersion().isNewerThanOrEquals(ClientVersion.V_1_20_5)) {
+            playerData.setGravityAttribute(newGravity);
+        } else {
+            currentGravity = defaultGravity;
+        }
+    }
+
+    private void onPlayerKnockBackChange(UUID uuid, double newKnockbackResistance) {
+        PlayerData playerData = PlayerDataManager.getPlayerData(uuid);
+        playerData.setKnockbackResistanceAttribute(newKnockbackResistance);
+    }
+}
@@ -0,0 +1,112 @@
+package me.caseload.knockbacksync.listener.packetevents;
+
+import com.github.retrooper.packetevents.event.PacketListenerAbstract;
+import com.github.retrooper.packetevents.event.PacketReceiveEvent;
+import com.github.retrooper.packetevents.event.PacketSendEvent;
+import com.github.retrooper.packetevents.protocol.packettype.PacketType;
+import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
+import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientKeepAlive;
+import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientPong;
+import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientWindowConfirmation;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerKeepAlive;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerPing;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerWindowConfirmation;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlayerData;
+import me.caseload.knockbacksync.util.data.Pair;
+
+import java.util.List;
+
+public class PingReceiveListener extends PacketListenerAbstract {
+
+    @Override
+    public void onPacketSend(PacketSendEvent event) {
+        if (!Base.INSTANCE.getConfigManager().isToggled()) return;
+
+        PacketTypeCommon packetType = event.getPacketType();
+        if (packetType.equals(PacketType.Play.Server.KEEP_ALIVE)) {
+            WrapperPlayServerKeepAlive keepAlive = new WrapperPlayServerKeepAlive(event);
+            long id = keepAlive.getId();
+
+            PlayerData playerData = PlayerDataManager.getPlayerData(event.getUser().getUUID());
+            if (playerData == null) return;
+
+            playerData.keepaliveMap.add(new Pair<>(id, System.nanoTime()));
+        } else if (packetType.equals(PacketType.Play.Server.PING)) {
+            WrapperPlayServerPing ping = new WrapperPlayServerPing(event);
+            int id = ping.getId();
+
+            PlayerData playerData = PlayerDataManager.getPlayerData(event.getUser().getUUID());
+            if (playerData == null) return;
+
+            playerData.transactionsSent.add(new Pair<>(id, System.nanoTime()));
+        } else if (packetType.equals(PacketType.Play.Server.WINDOW_CONFIRMATION)) {
+            WrapperPlayServerWindowConfirmation confirmation = new WrapperPlayServerWindowConfirmation(event);
+            int id = confirmation.getActionId();
+
+            PlayerData playerData = PlayerDataManager.getPlayerData(event.getUser().getUUID());
+            if (playerData == null) return;
+
+            playerData.transactionsSent.add(new Pair<>(id, System.nanoTime()));
+        }
+    }
+
+    @Override
+    public void onPacketReceive(PacketReceiveEvent event) {
+        // Do not immediately return if KB sync is disabled. This is because if we send a packet, disable the plugin
+        // And then receive a response we have to ensure that if the packet was sent by us we cancel it
+        // otherwise the server will likely kick the player
+        PacketTypeCommon packetType = event.getPacketType();
+        if (packetType == PacketType.Play.Client.KEEP_ALIVE) {
+
+            WrapperPlayClientKeepAlive keepAlive = new WrapperPlayClientKeepAlive(event);
+            PlayerData playerData = PlayerDataManager.getPlayerData(event.getUser().getUUID());
+            if (playerData == null) return;
+
+            long receivedId = keepAlive.getId();
+
+            handlePingCalculationPackets(event, playerData, receivedId, playerData.keepaliveMap);
+        } else if (packetType == PacketType.Play.Client.PONG) {
+            WrapperPlayClientPong pong = new WrapperPlayClientPong(event);
+            PlayerData playerData = PlayerDataManager.getPlayerData(event.getUser().getUUID());
+            if (playerData == null) return;
+
+            int id = pong.getId();
+
+            handlePingCalculationPackets(event, playerData, id, playerData.transactionsSent);
+        } else if (packetType == PacketType.Play.Client.WINDOW_CONFIRMATION) {
+            WrapperPlayClientWindowConfirmation windowConfirmation = new WrapperPlayClientWindowConfirmation(event);
+            PlayerData playerData = PlayerDataManager.getPlayerData(event.getUser().getUUID());
+            if (playerData == null) return;
+
+            int id = windowConfirmation.getActionId();
+
+            handlePingCalculationPackets(event, playerData, id, playerData.transactionsSent);
+        }
+    }
+
+    private <T extends Number> void handlePingCalculationPackets(PacketReceiveEvent event, PlayerData playerData, long id, List<Pair<T, Long>> packetSentList) {
+        // We can cancel for all 3 cases
+        if (playerData.didWeSendThatPacket(id)) {
+            // Pong not needed as vanilla ignores the packet, its needed for packet limiters
+            // We want to cancel Window Confirmations that we send, and ...
+            // Minecraft kicks players that send invalid keepAliveID packets
+            // Since Minecraft doesn't know we just sent a keepalive, we gotta cancel it
+            // To stop MC from processing it and kicking the player
+            event.setCancelled(true);
+        }
+
+        if (!Base.INSTANCE.getConfigManager().isToggled()) return;
+
+        long pingNanos = (System.nanoTime() - packetSentList.remove(0).getSecond());
+        double diffMillisDouble = pingNanos / 1_000_000.0;
+
+        playerData.setPreviousPing(playerData.getPing());
+        playerData.setPing(diffMillisDouble);
+
+        playerData.getJitterCalculator().addPing(pingNanos);
+        double jitter = playerData.getJitterCalculator().calculateJitter();
+        playerData.setJitter(jitter);
+    }
+}
@@ -1,24 +1,24 @@
-package me.caseload.knockbacksync.manager;
-
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Set;
-import java.util.UUID;
-import java.util.concurrent.ConcurrentHashMap;
-
-public class CombatManager {
-
-    private static final Set<UUID> combatPlayers = ConcurrentHashMap.newKeySet();
-
-    public static @NotNull Set<UUID> getPlayers() {
-        return combatPlayers;
-    }
-
-    public static void addPlayer(UUID uuid) {
-        combatPlayers.add(uuid);
-    }
-
-    public static void removePlayer(UUID uuid) {
-        combatPlayers.remove(uuid);
-    }
-}
+package me.caseload.knockbacksync.manager;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class CombatManager {
+
+    private static final Set<UUID> combatPlayers = ConcurrentHashMap.newKeySet();
+
+    public static @NotNull Set<UUID> getPlayers() {
+        return combatPlayers;
+    }
+
+    public static void addPlayer(UUID uuid) {
+        combatPlayers.add(uuid);
+    }
+
+    public static void removePlayer(UUID uuid) {
+        combatPlayers.remove(uuid);
+    }
+}
@@ -0,0 +1,177 @@
+package me.caseload.knockbacksync.manager;
+
+import lombok.Getter;
+import lombok.Setter;
+import me.caseload.knockbacksync.ConfigWrapper;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.Platform;
+import me.caseload.knockbacksync.config.YamlConfiguration;
+import me.caseload.knockbacksync.runnable.PingRunnable;
+import me.caseload.knockbacksync.scheduler.AbstractTaskHandle;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.HashMap;
+import java.util.Map;
+
+@Getter
+@Setter
+public class ConfigManager {
+
+    public static final long CONFIG_VERSION = 4;
+
+    private boolean toggled;
+    private boolean runnableEnabled;
+    private boolean updateAvailable;
+    private boolean notifyUpdate;
+
+    private long runnableInterval;
+    private long combatTimer;
+    private long spikeThreshold;
+
+    private String enableMessage;
+    private String disableMessage;
+    private String playerEnableMessage;
+    private String playerDisableMessage;
+    private String playerIneligibleMessage;
+
+    private AbstractTaskHandle pingTask;
+
+    private Map<String, Object> config;
+    private File configFile;
+    private ConfigWrapper configWrapper; // Cache the ConfigWrapper instance
+    private YamlConfiguration yamlConfig;
+
+    public ConfigManager() {
+        Base instance = Base.INSTANCE;
+        configFile = new File(instance.getDataFolder(), "config.yml");
+        yamlConfig = new YamlConfiguration(configFile);
+    }
+
+    public ConfigWrapper getConfigWrapper() {
+        if (configWrapper == null) {
+            reloadConfig();
+        }
+        return configWrapper;
+    }
+
+    public void reloadConfig() {
+        try {
+            if (!configFile.exists()) {
+                Base.INSTANCE.saveDefaultConfig();
+            }
+            yamlConfig.load();
+            config = yamlConfig.getData();
+            configWrapper = new ConfigWrapper(config);
+        } catch (IOException e) {
+            e.printStackTrace();
+            config = new HashMap<>();
+            configWrapper = new ConfigWrapper(config);
+        }
+    }
+
+    public void saveConfig() {
+        try {
+            yamlConfig.setData(config);
+            yamlConfig.save();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void loadConfig(boolean reloadConfig) {
+        if (reloadConfig || config == null) {
+            reloadConfig();
+        }
+
+        ConfigWrapper configWrapper = getConfigWrapper(); // Use cached ConfigWrapper
+
+        updateConfig();
+
+        toggled = configWrapper.getBoolean("enabled", true);
+
+        // Checks to see if the runnable was enabled...
+        // and if we now want to disable it
+        boolean newRunnableEnabled = configWrapper.getBoolean("runnable.enabled", true);
+        if (runnableEnabled && newRunnableEnabled && pingTask != null) { // null check for first startup
+            pingTask.cancel();
+        }
+
+        runnableEnabled = newRunnableEnabled;
+        runnableInterval = configWrapper.getLong("runnable.interval", 5L);
+
+        if (runnableEnabled) {
+            long initialDelay = 0L;
+            long pingTaskRunnableInterval = runnableInterval;
+            // Folia does not allow 0 ticks of wait time
+            if (Base.INSTANCE.platform == Platform.FOLIA) {
+                initialDelay = 1L;
+                pingTaskRunnableInterval = Math.max(pingTaskRunnableInterval, 1L);
+            }
+            pingTask = Base.INSTANCE.getScheduler().runTaskTimerAsynchronously(new PingRunnable(), initialDelay, pingTaskRunnableInterval);
+        }
+
+        notifyUpdate = configWrapper.getBoolean("notify_updates", true);
+        combatTimer = configWrapper.getLong("runnable.timer", 30L);
+        spikeThreshold = configWrapper.getLong("spike_threshold", 20L);
+        enableMessage = configWrapper.getString("enable_message", "&aSuccessfully enabled KnockbackSync.");
+        disableMessage = configWrapper.getString("disable_message", "&cSuccessfully disabled KnockbackSync.");
+        playerEnableMessage = configWrapper.getString("player_enable_message", "&aSuccessfully enabled KnockbackSync for %player%.");
+        playerDisableMessage = configWrapper.getString("player_disable_message", "&cSuccessfully disabled KnockbackSync for %player%.");
+        playerIneligibleMessage = configWrapper.getString("player_ineligible_message", "&c%player% is ineligible for KnockbackSync. If you believe this is in error, please contact your server administrators.");
+    }
+
+    public void updateConfig() {
+        ConfigWrapper oldConfig = getConfigWrapper();
+        long oldConfigVersion = oldConfig.getLong("config_version", 0);
+
+        if (oldConfigVersion < CONFIG_VERSION) {
+            // Backup old config with comments
+            File backupFile = new File(configFile.getParentFile(), "config-version-" + oldConfigVersion + ".yml");
+            try {
+                Files.move(configFile.toPath(), backupFile.toPath());
+                Base.INSTANCE.getLogger().info("Backed up old config to " + backupFile.getName());
+            } catch (IOException e) {
+                Base.INSTANCE.getLogger().warning("Failed to backup old config: " + e.getMessage());
+            }
+
+            // Store old values
+            Map<String, Object> oldValues = new HashMap<>(config);
+
+            // Create new config with default values
+            Base.INSTANCE.saveDefaultConfig();
+            reloadConfig();
+
+            // Transfer existing settings
+            ConfigWrapper newConfig = getConfigWrapper();
+            transferAllSettings(oldConfig, newConfig);
+
+            // Set new config version
+            newConfig.set("config_version", CONFIG_VERSION);
+
+            // Save updated config
+            saveConfig();
+
+            Base.INSTANCE.getLogger().info("Config updated to version " + CONFIG_VERSION);
+        }
+    }
+
+    private void transferAllSettings(ConfigWrapper oldConfig, ConfigWrapper newConfig) {
+        transferSettingsRecursive(oldConfig, newConfig, ".");
+    }
+
+    private void transferSettingsRecursive(ConfigWrapper oldConfig, ConfigWrapper newConfig, String currentPath) {
+        for (String key : oldConfig.getKeys(currentPath)) {
+            String fullPath = currentPath.isEmpty() || currentPath.equals(".") ? key : currentPath + "." + key;
+            if (newConfig.contains(fullPath)) {
+                Object value = oldConfig.get(fullPath);
+                if (value instanceof Map) {
+                    transferSettingsRecursive(oldConfig, newConfig, fullPath);
+                } else {
+                    newConfig.set(fullPath, value);
+                }
+            }
+        }
+    }
+}
@@ -0,0 +1,47 @@
+package me.caseload.knockbacksync.manager;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.player.PlayerData;
+import me.caseload.knockbacksync.util.FloodgateUtil;
+import me.caseload.knockbacksync.util.GeyserUtil;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class PlayerDataManager {
+
+    private static final Map<UUID, PlayerData> playerDataMap = new ConcurrentHashMap<>();
+
+    public static PlayerData getPlayerData(@NotNull UUID uuid) {
+        return playerDataMap.get(uuid);
+    }
+
+    public static void addPlayerData(@NotNull UUID uuid, @NotNull PlayerData playerData) {
+        if (!shouldExempt(uuid)) {
+            playerDataMap.put(uuid, playerData);
+            Base.INSTANCE.getSimpleEventBus().registerListeners(playerData);
+        }
+    }
+
+    public static void removePlayerData(@NotNull UUID uuid) {
+        PlayerData playerData = playerDataMap.remove(uuid);
+        if (playerData != null)
+            Base.INSTANCE.getSimpleEventBus().unregisterListeners(playerData);
+    }
+
+    public static boolean containsPlayerData(@NotNull UUID uuid) {
+        return playerDataMap.containsKey(uuid);
+    }
+
+    public static boolean shouldExempt(@NotNull UUID uuid) {
+        // Geyser players don't have Java movement
+        return GeyserUtil.isGeyserPlayer(uuid)
+                // Floodgate is the authentication system for Geyser on servers that use Geyser as a proxy instead of installing it as a plugin directly on the server
+                || FloodgateUtil.isFloodgatePlayer(uuid)
+                // Geyser formatted player string
+                // This will never happen for Java players, as the first character in the 3rd group is always 4 (xxxxxxxx-xxxx-4xxx-xxxx-xxxxxxxxxxxx)
+                || uuid.toString().startsWith("00000000-0000-0000-0009");
+    }
+}
@@ -0,0 +1,12 @@
+package me.caseload.knockbacksync.permission;
+
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.sender.Sender;
+
+public interface PermissionChecker {
+    boolean hasPermission(Object nativeType, String s, boolean defaultIfUnset);
+
+    boolean hasPermission(Sender source, String s, boolean defaultIfUnset);
+
+    boolean hasPermission(PlatformPlayer platform, String s);
+}
@@ -0,0 +1,58 @@
+package me.caseload.knockbacksync.player;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+public class JitterCalculator {
+    private final int SAMPLE_SIZE = 15;
+    private final Queue<Long> pings = new LinkedList<>();
+
+    public void addPing(long pingTime) {
+        pings.offer(pingTime);
+        if (pings.size() > SAMPLE_SIZE) {
+            pings.poll();
+        }
+    }
+
+    public double calculateJitter() {
+        if (pings.size() < 2) return 0;
+
+        List<Long> sortedPings = new ArrayList<>(pings);
+        Collections.sort(sortedPings);
+
+        // Calculate IQR
+        int q1Index = sortedPings.size() / 4;
+        int q3Index = q1Index * 3;
+        long q1 = sortedPings.get(q1Index);
+        long q3 = sortedPings.get(q3Index);
+        long iqr = q3 - q1;
+
+        // Filter outliers
+        double lowerBound = q1 - 1.5 * iqr;
+        double upperBound = q3 + 1.5 * iqr;
+        List<Long> filteredPings = sortedPings.stream()
+                .filter(p -> p >= lowerBound && p <= upperBound)
+                .collect(Collectors.toList());
+
+        // Calculate standard deviation
+        double mean = filteredPings.stream().mapToLong(Long::longValue).average().orElse(0);
+        double variance = filteredPings.stream()
+                .mapToDouble(p -> Math.pow(p - mean, 2))
+                .average().orElse(0);
+        double stdDev = Math.sqrt(variance);
+
+        // Calculate mean jitter
+        double meanJitter = 0;
+        Long prevPing = null;
+        for (Long ping : filteredPings) {
+            if (prevPing != null) {
+                meanJitter += Math.abs(ping - prevPing);
+            }
+            prevPing = ping;
+        }
+        meanJitter /= (filteredPings.size() - 1);
+
+        // You can return different jitter metrics based on your needs
+        return stdDev / 1_000_000.0; // or meanJitter, or both
+    }
+}
@@ -0,0 +1,54 @@
+package me.caseload.knockbacksync.player;
+
+import com.github.retrooper.packetevents.protocol.world.BoundingBox;
+import com.github.retrooper.packetevents.util.Vector3d;
+import me.caseload.knockbacksync.world.PlatformWorld;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.UUID;
+
+public interface PlatformPlayer {
+    UUID getUUID();
+
+    String getName();
+
+    double getX();
+
+    double getY();
+
+    double getZ();
+
+    float getPitch();
+
+    float getYaw();
+
+    boolean isOnGround();
+
+    int getPing();
+
+    boolean isGliding();
+
+    PlatformWorld getWorld();
+
+    Vector3d getLocation();
+
+    void sendMessage(@NotNull String s);
+
+    double getAttackCooldown();
+
+    boolean isSprinting();
+
+    int getMainHandKnockbackLevel();
+
+    @Nullable Integer getNoDamageTicks();
+
+    void setVelocity(Vector3d adjustedVelocity);
+
+    Vector3d getVelocity();
+
+    double getJumpPower();
+
+    BoundingBox getBoundingBox();
+    // Add more methods as needed
+}
@@ -0,0 +1,353 @@
+package me.caseload.knockbacksync.player;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.manager.player.PlayerManager;
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.netty.channel.ChannelHelper;
+import com.github.retrooper.packetevents.protocol.ConnectionState;
+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
+import com.github.retrooper.packetevents.protocol.player.User;
+import com.github.retrooper.packetevents.protocol.world.BoundingBox;
+import com.github.retrooper.packetevents.protocol.world.states.WrappedBlockState;
+import com.github.retrooper.packetevents.protocol.world.states.type.StateTypes;
+import com.github.retrooper.packetevents.util.Vector3d;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerKeepAlive;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerPing;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerWindowConfirmation;
+import lombok.Getter;
+import lombok.Setter;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.event.KBSyncEventHandler;
+import me.caseload.knockbacksync.event.events.ConfigReloadEvent;
+import me.caseload.knockbacksync.event.events.ToggleOnOffEvent;
+import me.caseload.knockbacksync.manager.CombatManager;
+import me.caseload.knockbacksync.scheduler.AbstractTaskHandle;
+import me.caseload.knockbacksync.util.MathUtil;
+import me.caseload.knockbacksync.util.data.Pair;
+import me.caseload.knockbacksync.world.PlatformWorld;
+import me.caseload.knockbacksync.world.raytrace.FluidHandling;
+import me.caseload.knockbacksync.world.raytrace.RayTraceResult;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.reflect.Field;
+import java.util.*;
+
+@Getter
+public class PlayerData {
+
+    // Please read the GitHub FAQ before adjusting.
+    public static final long PING_OFFSET = 25;
+    public static float TICK_RATE = 20.0F;
+    private static Field playerField;
+    public final List<Pair<Integer, Long>> transactionsSent = new LinkedList<>();
+    public final List<Pair<Long, Long>> keepaliveMap = new LinkedList<>();
+
+    private static final short MAIN_THREAD_TRANSACTION_ID = 31407;
+    private static final short NETTY_THREAD_TRANSACTION_ID = 31408;
+
+    static {
+        try {
+            switch (Base.INSTANCE.platform) {
+                case BUKKIT:
+                case FOLIA:
+                    Class<?> bukkitPlayerClass = Class.forName("me.caseload.knockbacksync.player.BukkitPlayer");
+                    playerField = bukkitPlayerClass.getDeclaredField("bukkitPlayer");
+                    break;
+                case FABRIC:
+                    Class<?> fabricPlayerClass = Class.forName("me.caseload.knockbacksync.player.FabricPlayer");
+                    playerField = fabricPlayerClass.getDeclaredField("fabricPlayer");
+                    break;
+                default:
+                    throw new IllegalStateException("Unexpected platform: " + Base.INSTANCE.platform);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        playerField.setAccessible(true); // May not be needed since it's already public
+    }
+
+    public final User user;
+    private final PlatformPlayer platformPlayer;
+    private final UUID uuid;
+    @NotNull private final Random random = new Random();
+    public long lastKeepAliveID = 0;
+    @Getter private final JitterCalculator jitterCalculator = new JitterCalculator();
+    @Setter private double jitter;
+    @Nullable private AbstractTaskHandle combatTask;
+    @Nullable @Setter private Double ping, previousPing;
+    @Nullable @Setter private Double verticalVelocity;
+    @Nullable @Setter private Integer lastDamageTicks;
+    @Setter private double gravityAttribute = 0.08;
+    @Setter private double knockbackResistanceAttribute = 0.0;
+    private boolean offGroundSyncEnabled;
+
+    public PlayerData(PlatformPlayer platformPlayer) {
+        this.uuid = platformPlayer.getUUID();
+        this.platformPlayer = platformPlayer;
+
+        User tempUser = null;
+
+        PlayerManager playerManager = PacketEvents.getAPI().getPlayerManager();
+        Object player = null;
+        try {
+            player = playerField.get(platformPlayer);
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e);
+        }
+
+        if (player != null) {
+            tempUser = playerManager.getUser(player);
+        }
+
+        this.user = tempUser;
+        this.offGroundSyncEnabled = Base.INSTANCE.getConfigManager().getConfigWrapper().getBoolean("enable_offground_synchronization",
+                true);
+    }
+
+    public double getNotNullPing() {
+        return ping != null ? ping : platformPlayer.getPing();
+    }
+
+    public double getNotNullPreviousPing() {
+        return previousPing != null ? previousPing : platformPlayer.getPing();
+    }
+
+    /**
+     * Calculates the player's ping with compensation for lag spikes.
+     * A hardcoded offset is applied for several reasons,
+     * read the GitHub FAQ before adjusting.
+     *
+     * @return The compensated ping, with a minimum of 1.
+     */
+    public double getCompensatedPing() {
+        double ping = getNotNullPing();
+        double previousPing = getNotNullPreviousPing();
+        double spikeCompensatedPing = (ping - previousPing > Base.INSTANCE.getConfigManager().getSpikeThreshold()) ? previousPing : ping;
+
+        return Math.max(1, spikeCompensatedPing - PING_OFFSET);
+    }
+
+    public int getCompensatedTicks() {
+        return (int) Math.ceil(getCompensatedPing() * TICK_RATE / 1000); // Multiply ping by seconds per tick
+    }
+
+    public int getTicks() {
+        return (int) Math.ceil(getNotNullPing() * TICK_RATE / 1000); // Multiply ping by seconds per tick
+    }
+
+    public boolean isSpike() {
+        return (getNotNullPing() - getNotNullPreviousPing()) > Base.INSTANCE.getConfigManager().getSpikeThreshold();
+    }
+
+    public void sendPing(boolean async) {
+        if (user == null || user.getEncoderState() != ConnectionState.PLAY) return;
+
+       String pingStrategy = Base.INSTANCE.getConfigManager().getConfigWrapper().getString("ping_strategy", "KEEPALIVE");
+       switch (pingStrategy) {
+           case "KEEPALIVE":
+               long keepAliveID = async ? NETTY_THREAD_TRANSACTION_ID : MAIN_THREAD_TRANSACTION_ID;
+               if (async) {
+                   ChannelHelper.runInEventLoop(user.getChannel(), () -> {
+                       // We call sendPacket instead of writePacket because it flushes immediately
+                       // Making our time measurement more accurate since we don't call, System.nanoTime(), wait until flush
+                       // And then actually send packet
+                       user.sendPacket(new WrapperPlayServerKeepAlive(keepAliveID));
+                   });
+               } else {
+                   user.sendPacket(new WrapperPlayServerKeepAlive(keepAliveID));
+               }
+               break;
+           case "PING":
+           case "TRANSACTION":
+               PacketWrapper<?> packet;
+               short pingTransactionID = async ? NETTY_THREAD_TRANSACTION_ID : MAIN_THREAD_TRANSACTION_ID;
+               if (PacketEvents.getAPI().getServerManager().getVersion().isNewerThanOrEquals(ServerVersion.V_1_17)) {
+                   packet = new WrapperPlayServerPing(pingTransactionID);
+               } else {
+                   packet = new WrapperPlayServerWindowConfirmation((byte) 0, pingTransactionID, false);
+               }
+
+               if (async) {
+                   ChannelHelper.runInEventLoop(user.getChannel(), () -> {
+                       user.writePacket(packet);
+                   });
+               } else {
+                   user.writePacket(packet);
+               }
+               break;
+       }
+    }
+
+    /**
+     * Determines if the Player is on the ground clientside, but not serverside
+     * <p>
+     * Returns <code>ping ≥ (tMax + tFall)</code> and <code>gDist ≤ 1.3</code>
+     * <p>
+     * Where:
+     * <ul>
+     *   <li><code>ping</code>: Estimated latency</li>
+     *   <li><code>tMax</code>: Time to reach maximum upward velocity</li>
+     *   <li><code>tFall</code>: Time to fall to the ground</li>
+     *   <li><code>gDist</code>: Distance to the ground</li>
+     * </ul>
+     *
+     * @param verticalVelocity The Player's current vertical velocity.
+     * @return <code>true</code> if the Player is on the ground; <code>false</code> otherwise.
+     */
+    public boolean isOnGroundClientSide(double verticalVelocity, double distanceToGround) {
+        int tMax = verticalVelocity > 0 ? MathUtil.calculateTimeToMaxVelocity(verticalVelocity, gravityAttribute) : 0;
+        if (tMax == -1)
+            return false; // reached the max tick limit, not safe to predict
+
+        double mH = verticalVelocity > 0 ? MathUtil.calculateDistanceTraveled(verticalVelocity, tMax, gravityAttribute) : 0;
+        int tFall = MathUtil.calculateFallTime(verticalVelocity, mH + distanceToGround, gravityAttribute);
+
+        if (tFall == -1)
+            return false; // reached the max tick limit, not safe to predict
+
+        return (tMax + tFall) - getCompensatedTicks() <= 0 && distanceToGround <= 1.3;
+    }
+
+    /**
+     * Gets whether or not offGroundSynchronization is enabled for the player.
+     * @return <code>true</code> if enabled; <code>false</code> otherwise.
+     */
+    public boolean isOffGroundSyncEnabled() {
+        // TODO, per-player offground sync toggles?
+        return offGroundSyncEnabled;
+    }
+
+    /**
+     * Gets the compensated off-ground velocity.
+     * This is used to make knockback feel more accurate off-ground.
+     *
+     * @return Compensated Y axis velocity
+     */
+    public double getCompensatedOffGroundVelocity() {
+        return MathUtil.getCompensatedVerticalVelocity(platformPlayer.getVelocity().getY(), getGravityAttribute(), getTicks());
+    }
+
+    /**
+     * Ray traces from each corner of the player's bounding box to the ground,
+     * returning the smallest distance, with a maximum limit of 5 blocks.
+     *
+     * @return The distance to the ground in blocks
+     */
+    public double getDistanceToGround() {
+        double collisionDist = 5;
+
+        PlatformWorld world = platformPlayer.getWorld();
+
+        for (Vector3d corner : getBBCorners()) {
+            RayTraceResult result = world.rayTraceBlocks(corner, new Vector3d(0, -1, 0), 5, FluidHandling.NONE, true);
+
+            if (result == null || result.getHitBlock() == null)
+                continue;
+
+            collisionDist = Math.min(collisionDist, corner.getY() - result.getHitBlockPosition().getY());
+        }
+
+        return collisionDist - 1;
+    }
+
+    /**
+     * Gets the corners of the Player's bounding box.
+     *
+     * @return An array of locations representing the corners of the bounding box.
+     */
+    private Vector3d[] getBBCorners() {
+        BoundingBox boundingBox = platformPlayer.getBoundingBox();
+        Vector3d location = platformPlayer.getLocation();
+
+        double adjustment = 0.01; // To ensure the bounding box isn't clipping inside a wall
+
+        return new Vector3d[] {
+                new Vector3d(boundingBox.getMinX() + adjustment, location.getY(), boundingBox.getMinZ() + adjustment),
+                new Vector3d(boundingBox.getMinX() + adjustment, location.getY(), boundingBox.getMaxZ() - adjustment),
+                new Vector3d(boundingBox.getMaxX() - adjustment, location.getY(), boundingBox.getMinZ() + adjustment),
+                new Vector3d(boundingBox.getMaxX() - adjustment, location.getY(), boundingBox.getMaxZ() - adjustment)
+        };
+    }
+
+    /**
+     * Calculates the positive vertical velocity.
+     * This is used to switch falling knockback to rising knockback.
+     *
+     * @param attacker The player who is attacking.
+     * @return The calculated positive vertical velocity, consistent with vanilla behavior.
+     */
+    public double calculateVerticalVelocity(PlatformPlayer attacker) {
+        double yAxis = attacker.getAttackCooldown() > 0.848 ? 0.4 : 0.36080000519752503;
+
+        if (!attacker.isSprinting()) {
+            yAxis = 0.36080000519752503;
+            double resistanceFactor = 0.04000000119 * knockbackResistanceAttribute * 10;
+            yAxis -= resistanceFactor;
+        }
+
+        // vertical velocity is always 0.4 when you have knockback level higher than 0
+        if (attacker.getMainHandKnockbackLevel() > 0)
+            yAxis = 0.4;
+
+        return yAxis;
+    }
+
+    public boolean isInCombat() {
+        return combatTask != null;
+    }
+
+    public void updateCombat() {
+        if (isInCombat())
+            combatTask.cancel();
+
+        combatTask = newCombatTask();
+        CombatManager.addPlayer(uuid);
+    }
+
+    public void quitCombat() {
+        combatTask.cancel(); // should do nothing
+        combatTask = null;
+        CombatManager.removePlayer(uuid);
+    }
+
+    @NotNull
+    private AbstractTaskHandle newCombatTask() {
+        return Base.INSTANCE.getScheduler().runTaskLaterAsynchronously(
+                this::quitCombat, Base.INSTANCE.getConfigManager().getCombatTimer());
+    }
+
+    public ClientVersion getClientVersion() {
+        if (user == null)
+            return ClientVersion.UNKNOWN;
+        ClientVersion ver = user.getClientVersion();
+        if (ver == null) {
+            // If temporarily null, assume server version...
+            return ClientVersion.getById(PacketEvents.getAPI().getServerManager().getVersion().getProtocolVersion());
+        }
+        return ver;
+    }
+
+    public long getKeepAliveSendTime() {
+        return lastKeepAliveID;
+    }
+
+    public boolean didWeSendThatPacket(long receivedId) {
+        return receivedId == NETTY_THREAD_TRANSACTION_ID || receivedId == MAIN_THREAD_TRANSACTION_ID;
+    }
+
+    @KBSyncEventHandler
+    public void onToggledEvent(ToggleOnOffEvent event) {
+        if (event.getStatus() == false) {
+            transactionsSent.clear();
+            keepaliveMap.clear();
+        }
+    }
+
+    @KBSyncEventHandler
+    public void onConfigReloadEvent(ConfigReloadEvent event) {
+        this.offGroundSyncEnabled = Base.INSTANCE.getConfigManager().getConfigWrapper().getBoolean("enable_offground_synchronization",
+                true);
+    }
+}
@@ -1,23 +1,22 @@
-package me.caseload.knockbacksync.runnable;
-
-import me.caseload.knockbacksync.KnockbackSync;
-import me.caseload.knockbacksync.manager.CombatManager;
-import me.caseload.knockbacksync.manager.PlayerData;
-import me.caseload.knockbacksync.manager.PlayerDataManager;
-import org.bukkit.scheduler.BukkitRunnable;
-
-import java.util.UUID;
-
-public class PingRunnable extends BukkitRunnable {
-
-    @Override
-    public void run() {
-        if (!KnockbackSync.getInstance().isToggled())
-            return;
-
-        for (UUID uuid : CombatManager.getPlayers()) {
-            PlayerData playerData = PlayerDataManager.getPlayerData(uuid);
-            playerData.sendPing();
-        }
-    }
-}
+package me.caseload.knockbacksync.runnable;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.manager.CombatManager;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlayerData;
+
+import java.util.UUID;
+
+public class PingRunnable implements Runnable {
+
+    @Override
+    public void run() {
+        if (!Base.INSTANCE.getConfigManager().isToggled())
+            return;
+
+        for (UUID uuid : CombatManager.getPlayers()) {
+            PlayerData playerData = PlayerDataManager.getPlayerData(uuid);
+            playerData.sendPing(true);
+        }
+    }
+}
@@ -0,0 +1,8 @@
+package me.caseload.knockbacksync.scheduler;
+
+public interface AbstractTaskHandle {
+
+    boolean getCancelled();
+
+    void cancel();
+}
@@ -0,0 +1,17 @@
+package me.caseload.knockbacksync.scheduler;
+
+public interface SchedulerAdapter {
+    AbstractTaskHandle runTask(Runnable task);
+
+    AbstractTaskHandle runTaskAsynchronously(Runnable task);
+
+    AbstractTaskHandle runTaskLater(Runnable task, long delayTicks);
+
+    AbstractTaskHandle runTaskTimer(Runnable task, long delayTicks, long periodTicks);
+
+    AbstractTaskHandle runTaskLaterAsynchronously(Runnable task, long delay);
+
+    AbstractTaskHandle runTaskTimerAsynchronously(Runnable task, long delay, long period);
+
+    void shutdown();
+}
@@ -0,0 +1,93 @@
+package me.caseload.knockbacksync.sender;
+
+import me.caseload.knockbacksync.Base;
+
+import java.util.UUID;
+
+/**
+ * Simple implementation of {@link Sender} using a {@link SenderFactory}
+ *
+ * @param <T> the command sender type
+ */
+public final class AbstractSender<T> implements Sender {
+    private final Base plugin;
+    private final SenderFactory<?, T> factory;
+    private final T sender;
+
+    private final UUID uniqueId;
+    private final String name;
+    private final boolean isConsole;
+
+    AbstractSender(Base plugin, SenderFactory<?, T> factory, T sender) {
+        this.plugin = plugin;
+        this.factory = factory;
+        this.sender = sender;
+        this.uniqueId = factory.getUniqueId(this.sender);
+        this.name = factory.getName(this.sender);
+        this.isConsole = this.factory.isConsole(this.sender);
+    }
+
+    @Override
+    public Base getPlugin() {
+        return this.plugin;
+    }
+
+    @Override
+    public UUID getUniqueId() {
+        return this.uniqueId;
+    }
+
+    @Override
+    public String getName() {
+        return this.name;
+    }
+
+    @Override
+    public void sendMessage(String message) {
+        this.factory.sendMessage(this.sender, message);
+    }
+
+    @Override
+    public boolean hasPermission(String permission) {
+        return isConsole() || this.factory.hasPermission(this.sender, permission);
+    }
+
+    @Override
+    public boolean hasPermission(String permission, boolean defaultIfUnset) {
+        return isConsole() || this.factory.hasPermission(this.sender, permission, defaultIfUnset);
+    }
+
+    @Override
+    public void performCommand(String commandLine) {
+        this.factory.performCommand(this.sender, commandLine);
+    }
+
+    @Override
+    public boolean isConsole() {
+        return this.isConsole;
+    }
+
+    @Override
+    public boolean isValid() {
+        return true;
+//        return isConsole() || this.plugin.getBootstrap().isPlayerOnline(this.uniqueId);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == this) return true;
+        if (!(o instanceof AbstractSender)) return false;
+        final AbstractSender<?> that = (AbstractSender<?>) o;
+        return this.getUniqueId().equals(that.getUniqueId());
+    }
+
+    @Override
+    public int hashCode() {
+        return this.uniqueId.hashCode();
+    }
+
+    @Override
+    public T getSender() {
+        return sender;
+    }
+}
@@ -0,0 +1,92 @@
+package me.caseload.knockbacksync.sender;
+
+import me.caseload.knockbacksync.Base;
+
+import java.util.UUID;
+
+/**
+ * Wrapper interface to represent a CommandSender/CommandSource within the common command implementations.
+ */
+public interface Sender {
+
+    /**
+     * The uuid used by the console sender.
+     */
+    UUID CONSOLE_UUID = new UUID(0, 0); // 00000000-0000-0000-0000-000000000000
+    /**
+     * The name used by the console sender.
+     */
+    String CONSOLE_NAME = "Console";
+
+    /**
+     * Gets the plugin instance the sender is from.
+     *
+     * @return the plugin
+     */
+    Base getPlugin();
+
+    /**
+     * Gets the sender's username
+     *
+     * @return a friendly username for the sender
+     */
+    String getName();
+
+    /**
+     * Gets a string representing the senders username, and their current location
+     * within the network.
+     *
+     * @return a friendly identifier for the sender
+     */
+
+    /**
+     * Gets the sender's unique id.
+     *
+     * <p>See {@link #CONSOLE_UUID} for the console's UUID representation.</p>
+     *
+     * @return the sender's uuid
+     */
+    UUID getUniqueId();
+
+    /**
+     * Send a json message to the Sender.
+     *
+     * @param message the message to send.
+     */
+    void sendMessage(String message);
+
+    /**
+     * Check if the Sender has a permission.
+     *
+     * @param permission the permission to check for
+     * @return true if the sender has the permission
+     */
+    boolean hasPermission(String permission);
+
+    boolean hasPermission(String permission, boolean defaultIfUnset);
+
+    /**
+     * Makes the sender perform a command.
+     *
+     * @param commandLine the command
+     */
+    void performCommand(String commandLine);
+
+    /**
+     * Gets whether this sender is the console
+     *
+     * @return if the sender is the console
+     */
+    boolean isConsole();
+
+    /**
+     * Gets whether this sender is still valid & receiving messages.
+     *
+     * @return if this sender is valid
+     */
+    default boolean isValid() {
+        return true;
+    }
+
+    Object getSender();
+}
@@ -0,0 +1,53 @@
+package me.caseload.knockbacksync.sender;
+
+import me.caseload.knockbacksync.Base;
+
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * Factory class to make a thread-safe sender instance
+ *
+ * @param <P> the plugin type
+ * @param <T> the command sender type
+ */
+public abstract class SenderFactory<P extends Base, T> implements AutoCloseable {
+    private final P plugin;
+
+    public SenderFactory(P plugin) {
+        this.plugin = plugin;
+    }
+
+    protected P getPlugin() {
+        return this.plugin;
+    }
+
+    protected abstract UUID getUniqueId(T sender);
+
+    protected abstract String getName(T sender);
+
+    protected abstract void sendMessage(T sender, String message);
+
+    protected abstract boolean hasPermission(T sender, String node);
+
+    protected abstract boolean hasPermission(T sender, String node, boolean defaultIfUnset);
+
+    protected abstract void performCommand(T sender, String command);
+
+    protected abstract boolean isConsole(T sender);
+
+    protected boolean shouldSplitNewlines(T sender) {
+        return isConsole(sender);
+    }
+
+    public final Sender wrap(T sender) {
+        Objects.requireNonNull(sender, "sender");
+        return new AbstractSender<>(this.plugin, this, sender);
+    }
+
+    @SuppressWarnings("unchecked")
+    public final T unwrap(Sender sender) {
+        Objects.requireNonNull(sender, "sender");
+        return (T) sender.getSender();
+    }
+}
@@ -0,0 +1,44 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.Map;
+import java.util.concurrent.Callable;
+
+public class AdvancedBarChart extends CustomChart {
+
+    private final Callable<Map<String, int[]>> callable;
+
+    /**
+     * Class constructor.
+     *
+     * @param chartId  The id of the chart.
+     * @param callable The callable which is used to request the chart data.
+     */
+    public AdvancedBarChart(String chartId, Callable<Map<String, int[]>> callable) {
+        super(chartId);
+        this.callable = callable;
+    }
+
+    @Override
+    protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+        JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+        Map<String, int[]> map = callable.call();
+        if (map == null || map.isEmpty()) {
+            // Null = skip the chart
+            return null;
+        }
+        boolean allSkipped = true;
+        for (Map.Entry<String, int[]> entry : map.entrySet()) {
+            if (entry.getValue().length == 0) {
+                // Skip this invalid
+                continue;
+            }
+            allSkipped = false;
+            valuesBuilder.appendField(entry.getKey(), entry.getValue());
+        }
+        if (allSkipped) {
+            // Null = skip the chart
+            return null;
+        }
+        return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+    }
+}
@@ -0,0 +1,44 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.Map;
+import java.util.concurrent.Callable;
+
+public class AdvancedPie extends CustomChart {
+
+    private final Callable<Map<String, Integer>> callable;
+
+    /**
+     * Class constructor.
+     *
+     * @param chartId  The id of the chart.
+     * @param callable The callable which is used to request the chart data.
+     */
+    public AdvancedPie(String chartId, Callable<Map<String, Integer>> callable) {
+        super(chartId);
+        this.callable = callable;
+    }
+
+    @Override
+    protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+        JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+        Map<String, Integer> map = callable.call();
+        if (map == null || map.isEmpty()) {
+            // Null = skip the chart
+            return null;
+        }
+        boolean allSkipped = true;
+        for (Map.Entry<String, Integer> entry : map.entrySet()) {
+            if (entry.getValue() == 0) {
+                // Skip this invalid
+                continue;
+            }
+            allSkipped = false;
+            valuesBuilder.appendField(entry.getKey(), entry.getValue());
+        }
+        if (allSkipped) {
+            // Null = skip the chart
+            return null;
+        }
+        return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+    }
+}
@@ -0,0 +1,37 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.function.BiConsumer;
+
+public abstract class CustomChart {
+
+    private final String chartId;
+
+    protected CustomChart(String chartId) {
+        if (chartId == null) {
+            throw new IllegalArgumentException("chartId must not be null");
+        }
+        this.chartId = chartId;
+    }
+
+    public JsonObjectBuilder.JsonObject getRequestJsonObject(
+            BiConsumer<String, Throwable> errorLogger, boolean logErrors) {
+        JsonObjectBuilder builder = new JsonObjectBuilder();
+        builder.appendField("chartId", chartId);
+        try {
+            JsonObjectBuilder.JsonObject data = getChartData();
+            if (data == null) {
+                // If the data is null we don't send the chart.
+                return null;
+            }
+            builder.appendField("data", data);
+        } catch (Throwable t) {
+            if (logErrors) {
+                errorLogger.accept("Failed to get data for custom chart with id " + chartId, t);
+            }
+            return null;
+        }
+        return builder.build();
+    }
+
+    protected abstract JsonObjectBuilder.JsonObject getChartData() throws Exception;
+}
@@ -0,0 +1,48 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.Map;
+import java.util.concurrent.Callable;
+
+public class DrilldownPie extends CustomChart {
+
+    private final Callable<Map<String, Map<String, Integer>>> callable;
+
+    /**
+     * Class constructor.
+     *
+     * @param chartId  The id of the chart.
+     * @param callable The callable which is used to request the chart data.
+     */
+    public DrilldownPie(String chartId, Callable<Map<String, Map<String, Integer>>> callable) {
+        super(chartId);
+        this.callable = callable;
+    }
+
+    @Override
+    public JsonObjectBuilder.JsonObject getChartData() throws Exception {
+        JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+        Map<String, Map<String, Integer>> map = callable.call();
+        if (map == null || map.isEmpty()) {
+            // Null = skip the chart
+            return null;
+        }
+        boolean reallyAllSkipped = true;
+        for (Map.Entry<String, Map<String, Integer>> entryValues : map.entrySet()) {
+            JsonObjectBuilder valueBuilder = new JsonObjectBuilder();
+            boolean allSkipped = true;
+            for (Map.Entry<String, Integer> valueEntry : map.get(entryValues.getKey()).entrySet()) {
+                valueBuilder.appendField(valueEntry.getKey(), valueEntry.getValue());
+                allSkipped = false;
+            }
+            if (!allSkipped) {
+                reallyAllSkipped = false;
+                valuesBuilder.appendField(entryValues.getKey(), valueBuilder.build());
+            }
+        }
+        if (reallyAllSkipped) {
+            // Null = skip the chart
+            return null;
+        }
+        return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+    }
+}
@@ -0,0 +1,210 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.Arrays;
+import java.util.stream.Collectors;
+
+/**
+ * An extremely simple JSON builder.
+ *
+ * <p>While this class is neither feature-rich nor the most performant one, it's sufficient enough
+ * for its use-case.
+ */
+public class JsonObjectBuilder {
+
+    private StringBuilder builder = new StringBuilder();
+
+    private boolean hasAtLeastOneField = false;
+
+    public JsonObjectBuilder() {
+        builder.append("{");
+    }
+
+    /**
+     * Escapes the given string like stated in https://www.ietf.org/rfc/rfc4627.txt.
+     *
+     * <p>This method escapes only the necessary characters '"', '\'. and '\u0000' - '\u001F'.
+     * Compact escapes are not used (e.g., '\n' is escaped as "\u000a" and not as "\n").
+     *
+     * @param value The value to escape.
+     * @return The escaped value.
+     */
+    private static String escape(String value) {
+        final StringBuilder builder = new StringBuilder();
+        for (int i = 0; i < value.length(); i++) {
+            char c = value.charAt(i);
+            if (c == '"') {
+                builder.append("\\\"");
+            } else if (c == '\\') {
+                builder.append("\\\\");
+            } else if (c <= '\u000F') {
+                builder.append("\\u000").append(Integer.toHexString(c));
+            } else if (c <= '\u001F') {
+                builder.append("\\u00").append(Integer.toHexString(c));
+            } else {
+                builder.append(c);
+            }
+        }
+        return builder.toString();
+    }
+
+    /**
+     * Appends a null field to the JSON.
+     *
+     * @param key The key of the field.
+     * @return A reference to this object.
+     */
+    public JsonObjectBuilder appendNull(String key) {
+        appendFieldUnescaped(key, "null");
+        return this;
+    }
+
+    /**
+     * Appends a string field to the JSON.
+     *
+     * @param key   The key of the field.
+     * @param value The value of the field.
+     * @return A reference to this object.
+     */
+    public JsonObjectBuilder appendField(String key, String value) {
+        if (value == null) {
+            throw new IllegalArgumentException("JSON value must not be null");
+        }
+        appendFieldUnescaped(key, "\"" + escape(value) + "\"");
+        return this;
+    }
+
+    /**
+     * Appends an integer field to the JSON.
+     *
+     * @param key   The key of the field.
+     * @param value The value of the field.
+     * @return A reference to this object.
+     */
+    public JsonObjectBuilder appendField(String key, int value) {
+        appendFieldUnescaped(key, String.valueOf(value));
+        return this;
+    }
+
+    /**
+     * Appends an object to the JSON.
+     *
+     * @param key    The key of the field.
+     * @param object The object.
+     * @return A reference to this object.
+     */
+    public JsonObjectBuilder appendField(String key, JsonObject object) {
+        if (object == null) {
+            throw new IllegalArgumentException("JSON object must not be null");
+        }
+        appendFieldUnescaped(key, object.toString());
+        return this;
+    }
+
+    /**
+     * Appends a string array to the JSON.
+     *
+     * @param key    The key of the field.
+     * @param values The string array.
+     * @return A reference to this object.
+     */
+    public JsonObjectBuilder appendField(String key, String[] values) {
+        if (values == null) {
+            throw new IllegalArgumentException("JSON values must not be null");
+        }
+        String escapedValues =
+                Arrays.stream(values)
+                        .map(value -> "\"" + escape(value) + "\"")
+                        .collect(Collectors.joining(","));
+        appendFieldUnescaped(key, "[" + escapedValues + "]");
+        return this;
+    }
+
+    /**
+     * Appends an integer array to the JSON.
+     *
+     * @param key    The key of the field.
+     * @param values The integer array.
+     * @return A reference to this object.
+     */
+    public JsonObjectBuilder appendField(String key, int[] values) {
+        if (values == null) {
+            throw new IllegalArgumentException("JSON values must not be null");
+        }
+        String escapedValues =
+                Arrays.stream(values).mapToObj(String::valueOf).collect(Collectors.joining(","));
+        appendFieldUnescaped(key, "[" + escapedValues + "]");
+        return this;
+    }
+
+    /**
+     * Appends an object array to the JSON.
+     *
+     * @param key    The key of the field.
+     * @param values The integer array.
+     * @return A reference to this object.
+     */
+    public JsonObjectBuilder appendField(String key, JsonObject[] values) {
+        if (values == null) {
+            throw new IllegalArgumentException("JSON values must not be null");
+        }
+        String escapedValues =
+                Arrays.stream(values).map(JsonObject::toString).collect(Collectors.joining(","));
+        appendFieldUnescaped(key, "[" + escapedValues + "]");
+        return this;
+    }
+
+    /**
+     * Appends a field to the object.
+     *
+     * @param key          The key of the field.
+     * @param escapedValue The escaped value of the field.
+     */
+    private void appendFieldUnescaped(String key, String escapedValue) {
+        if (builder == null) {
+            throw new IllegalStateException("JSON has already been built");
+        }
+        if (key == null) {
+            throw new IllegalArgumentException("JSON key must not be null");
+        }
+        if (hasAtLeastOneField) {
+            builder.append(",");
+        }
+        builder.append("\"").append(escape(key)).append("\":").append(escapedValue);
+        hasAtLeastOneField = true;
+    }
+
+    /**
+     * Builds the JSON string and invalidates this builder.
+     *
+     * @return The built JSON string.
+     */
+    public JsonObject build() {
+        if (builder == null) {
+            throw new IllegalStateException("JSON has already been built");
+        }
+        JsonObject object = new JsonObject(builder.append("}").toString());
+        builder = null;
+        return object;
+    }
+
+    /**
+     * A super simple representation of a JSON object.
+     *
+     * <p>This class only exists to make methods of the {@link JsonObjectBuilder} type-safe and not
+     * allow a raw string inputs for methods like {@link JsonObjectBuilder#appendField(String,
+     * JsonObject)}.
+     */
+    public static class JsonObject {
+
+        private final String value;
+
+        private JsonObject(String value) {
+            this.value = value;
+        }
+
+        @Override
+        public String toString() {
+            return value;
+        }
+    }
+}
@@ -0,0 +1,44 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.Map;
+import java.util.concurrent.Callable;
+
+public class MultiLineChart extends CustomChart {
+
+    private final Callable<Map<String, Integer>> callable;
+
+    /**
+     * Class constructor.
+     *
+     * @param chartId  The id of the chart.
+     * @param callable The callable which is used to request the chart data.
+     */
+    public MultiLineChart(String chartId, Callable<Map<String, Integer>> callable) {
+        super(chartId);
+        this.callable = callable;
+    }
+
+    @Override
+    protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+        JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+        Map<String, Integer> map = callable.call();
+        if (map == null || map.isEmpty()) {
+            // Null = skip the chart
+            return null;
+        }
+        boolean allSkipped = true;
+        for (Map.Entry<String, Integer> entry : map.entrySet()) {
+            if (entry.getValue() == 0) {
+                // Skip this invalid
+                continue;
+            }
+            allSkipped = false;
+            valuesBuilder.appendField(entry.getKey(), entry.getValue());
+        }
+        if (allSkipped) {
+            // Null = skip the chart
+            return null;
+        }
+        return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+    }
+}
@@ -0,0 +1,34 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.Map;
+import java.util.concurrent.Callable;
+
+public class SimpleBarChart extends CustomChart {
+
+    private final Callable<Map<String, Integer>> callable;
+
+    /**
+     * Class constructor.
+     *
+     * @param chartId  The id of the chart.
+     * @param callable The callable which is used to request the chart data.
+     */
+    public SimpleBarChart(String chartId, Callable<Map<String, Integer>> callable) {
+        super(chartId);
+        this.callable = callable;
+    }
+
+    @Override
+    protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+        JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+        Map<String, Integer> map = callable.call();
+        if (map == null || map.isEmpty()) {
+            // Null = skip the chart
+            return null;
+        }
+        for (Map.Entry<String, Integer> entry : map.entrySet()) {
+            valuesBuilder.appendField(entry.getKey(), new int[]{entry.getValue()});
+        }
+        return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+    }
+}
@@ -0,0 +1,29 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.concurrent.Callable;
+
+public class SimplePie extends CustomChart {
+
+    private final Callable<String> callable;
+
+    /**
+     * Class constructor.
+     *
+     * @param chartId  The id of the chart.
+     * @param callable The callable which is used to request the chart data.
+     */
+    public SimplePie(String chartId, Callable<String> callable) {
+        super(chartId);
+        this.callable = callable;
+    }
+
+    @Override
+    protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+        String value = callable.call();
+        if (value == null || value.isEmpty()) {
+            // Null = skip the chart
+            return null;
+        }
+        return new JsonObjectBuilder().appendField("value", value).build();
+    }
+}
@@ -0,0 +1,29 @@
+package me.caseload.knockbacksync.stats;
+
+import java.util.concurrent.Callable;
+
+public class SingleLineChart extends CustomChart {
+
+    private final Callable<Integer> callable;
+
+    /**
+     * Class constructor.
+     *
+     * @param chartId  The id of the chart.
+     * @param callable The callable which is used to request the chart data.
+     */
+    public SingleLineChart(String chartId, Callable<Integer> callable) {
+        super(chartId);
+        this.callable = callable;
+    }
+
+    @Override
+    protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+        int value = callable.call();
+        if (value == 0) {
+            // Null = skip the chart
+            return null;
+        }
+        return new JsonObjectBuilder().appendField("value", value).build();
+    }
+}
@@ -0,0 +1,99 @@
+package me.caseload.knockbacksync.stats.custom;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.common.BuildConfig;
+import me.caseload.knockbacksync.stats.SimplePie;
+import org.kohsuke.github.GHAsset;
+import org.kohsuke.github.GHRelease;
+import org.kohsuke.github.GitHub;
+
+import java.io.*;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.List;
+
+public class BuildTypePie extends SimplePie {
+
+    private static final String RELEASES_FILE = "releases.txt";
+    private static final String DEV_BUILDS_FILE = "dev-builds.txt";
+    private static final File dataFolder = Base.INSTANCE.getDataFolder();
+    private static String cachedBuildType = null;
+
+    public BuildTypePie() {
+        super("build_type", BuildTypePie::determineBuildType);
+    }
+
+    public static String determineBuildType() {
+        if (cachedBuildType == null) {
+            cachedBuildType = calculateBuildType();
+        }
+        return cachedBuildType;
+    }
+
+    private static String calculateBuildType() {
+        try {
+            String currentHash = Base.INSTANCE.getPluginJarHashProvider().getPluginJarHash();
+            downloadBuildFiles();
+
+            if (isHashInFile(currentHash, new File(dataFolder, RELEASES_FILE))) {
+                return "release";
+            } else if (isHashInFile(currentHash, new File(dataFolder, DEV_BUILDS_FILE))) {
+                return "dev";
+            } else {
+                return "fork";
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            return "unknown";
+        }
+    }
+
+    private static void downloadBuildFiles() throws IOException {
+        GitHub gitHub = GitHub.connectAnonymously();
+        GHRelease latestRelease = gitHub.getRepository(BuildConfig.GITHUB_REPO)
+                .getLatestRelease();
+        List<GHAsset> assets = latestRelease.listAssets().toList();
+        for (GHAsset asset : assets) {
+            if (asset.getName().equals(RELEASES_FILE) || asset.getName().equals(DEV_BUILDS_FILE)) {
+                Base.INSTANCE.getLogger().info("Downloading: " + asset.getName());
+
+                String jsonContent = readStringFromURL(asset.getUrl().toString());
+                JsonObject jsonObject = JsonParser.parseString(jsonContent).getAsJsonObject();
+                String downloadUrl = jsonObject.get("browser_download_url").getAsString();
+
+                try (InputStream inputStream = new URL(downloadUrl).openStream(); FileOutputStream outputStream = new FileOutputStream(new File(dataFolder, asset.getName()))) {
+                    byte[] buffer = new byte[4096];
+                    int bytesRead;
+                    while ((bytesRead = inputStream.read(buffer)) != -1) {
+                        outputStream.write(buffer, 0, bytesRead);
+                    }
+                }
+
+                Base.INSTANCE.getLogger().info("Downloaded: " + asset.getName());
+            }
+        }
+    }
+
+    private static boolean isHashInFile(String hash, File file) throws IOException {
+        if (!file.exists()) {
+            return false;
+        }
+        List<String> lines = Files.readAllLines(Paths.get(file.getPath()));
+        return lines.contains(hash);
+    }
+
+    private static String readStringFromURL(String urlString) throws IOException {
+        try (InputStream inputStream = new URL(urlString).openStream()) {
+            ByteArrayOutputStream result = new ByteArrayOutputStream();
+            byte[] buffer = new byte[4096];
+            int bytesRead;
+            while ((bytesRead = inputStream.read(buffer)) != -1) {
+                result.write(buffer, 0, bytesRead);
+            }
+            return result.toString("UTF-8");
+        }
+    }
+}
@@ -0,0 +1,5 @@
+package me.caseload.knockbacksync.stats.custom;
+
+public interface Metrics {
+    void shutdown();
+}
@@ -0,0 +1,276 @@
+package me.caseload.knockbacksync.stats.custom;
+
+import me.caseload.knockbacksync.stats.CustomChart;
+import me.caseload.knockbacksync.stats.JsonObjectBuilder;
+import org.jetbrains.annotations.NotNull;
+
+import javax.net.ssl.HttpsURLConnection;
+import java.io.*;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+import java.util.zip.GZIPOutputStream;
+
+public class MetricsBase {
+
+    /**
+     * The version of the Metrics class.
+     */
+    public static final String METRICS_VERSION = "3.1.0";
+
+    private static final String REPORT_URL = "https://bStats.org/api/v2/data/%s";
+
+    private final ScheduledExecutorService scheduler;
+
+    private final String platform;
+
+    private final String serverUuid;
+
+    private final int serviceId;
+
+    private final Consumer<JsonObjectBuilder> appendPlatformDataConsumer;
+
+    private final Consumer<JsonObjectBuilder> appendServiceDataConsumer;
+
+    private final Consumer<Runnable> submitTaskConsumer;
+
+    private final Supplier<Boolean> checkServiceEnabledSupplier;
+
+    private final BiConsumer<String, Throwable> errorLogger;
+
+    private final Consumer<String> infoLogger;
+
+    private final boolean logErrors;
+
+    private final boolean logSentData;
+
+    private final boolean logResponseStatusText;
+
+    private final Set<CustomChart> customCharts = new HashSet<>();
+
+    private final boolean enabled;
+
+    /**
+     * Creates a new MetricsBase class instance.
+     *
+     * @param platform                    The platform of the service.
+     * @param serviceId                   The id of the service.
+     * @param serverUuid                  The server uuid.
+     * @param enabled                     Whether or not data sending is enabled.
+     * @param appendPlatformDataConsumer  A consumer that receives a {@code JsonObjectBuilder} and
+     *                                    appends all platform-specific data.
+     * @param appendServiceDataConsumer   A consumer that receives a {@code JsonObjectBuilder} and
+     *                                    appends all service-specific data.
+     * @param submitTaskConsumer          A consumer that takes a runnable with the submit task. This can be
+     *                                    used to delegate the data collection to a another thread to prevent errors caused by
+     *                                    concurrency. Can be {@code null}.
+     * @param checkServiceEnabledSupplier A supplier to check if the service is still enabled.
+     * @param errorLogger                 A consumer that accepts log message and an error.
+     * @param infoLogger                  A consumer that accepts info log messages.
+     * @param logErrors                   Whether or not errors should be logged.
+     * @param logSentData                 Whether or not the sent data should be logged.
+     * @param logResponseStatusText       Whether or not the response status text should be logged.
+     * @param skipRelocateCheck           Whether or not the relocate check should be skipped.
+     */
+    public MetricsBase(
+            String platform,
+            String serverUuid,
+            int serviceId,
+            boolean enabled,
+            Consumer<JsonObjectBuilder> appendPlatformDataConsumer,
+            Consumer<JsonObjectBuilder> appendServiceDataConsumer,
+            Consumer<Runnable> submitTaskConsumer,
+            Supplier<Boolean> checkServiceEnabledSupplier,
+            BiConsumer<String, Throwable> errorLogger,
+            Consumer<String> infoLogger,
+            boolean logErrors,
+            boolean logSentData,
+            boolean logResponseStatusText,
+            boolean skipRelocateCheck) {
+        this.scheduler = getScheduledThreadPoolExecutor();
+        this.platform = platform;
+        this.serverUuid = serverUuid;
+        this.serviceId = serviceId;
+        this.enabled = enabled;
+        this.appendPlatformDataConsumer = appendPlatformDataConsumer;
+        this.appendServiceDataConsumer = appendServiceDataConsumer;
+        this.submitTaskConsumer = submitTaskConsumer;
+        this.checkServiceEnabledSupplier = checkServiceEnabledSupplier;
+        this.errorLogger = errorLogger;
+        this.infoLogger = infoLogger;
+        this.logErrors = logErrors;
+        this.logSentData = logSentData;
+        this.logResponseStatusText = logResponseStatusText;
+        if (!skipRelocateCheck) {
+            checkRelocation();
+        }
+        if (enabled) {
+            // WARNING: Removing the option to opt-out will get your plugin banned from
+            // bStats
+            startSubmitting();
+        }
+    }
+
+    private static @NotNull ScheduledThreadPoolExecutor getScheduledThreadPoolExecutor() {
+        ScheduledThreadPoolExecutor scheduler =
+                new ScheduledThreadPoolExecutor(
+                        1,
+                        task -> {
+                            Thread thread = new Thread(task, "bStats-Metrics");
+                            thread.setDaemon(true);
+                            return thread;
+                        });
+        // We want delayed tasks (non-periodic) that will execute in the future to be
+        // cancelled when the scheduler is shutdown.
+        // Otherwise, we risk preventing the server from shutting down even when
+        // MetricsBase#shutdown() is called
+        scheduler.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
+        return scheduler;
+    }
+
+    /**
+     * Gzips the given string.
+     *
+     * @param str The string to gzip.
+     * @return The gzipped string.
+     */
+    private static byte[] compress(final String str) throws IOException {
+        if (str == null) {
+            return null;
+        }
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        try (GZIPOutputStream gzip = new GZIPOutputStream(outputStream)) {
+            gzip.write(str.getBytes(StandardCharsets.UTF_8));
+        }
+        return outputStream.toByteArray();
+    }
+
+    public void addCustomChart(CustomChart chart) {
+        this.customCharts.add(chart);
+    }
+
+    public void shutdown() {
+        scheduler.shutdown();
+    }
+
+    private void startSubmitting() {
+        final Runnable submitTask =
+                () -> {
+                    if (!enabled || !checkServiceEnabledSupplier.get()) {
+                        // Submitting data or service is disabled
+                        scheduler.shutdown();
+                        return;
+                    }
+                    if (submitTaskConsumer != null) {
+                        submitTaskConsumer.accept(this::submitData);
+                    } else {
+                        this.submitData();
+                    }
+                };
+        // Many servers tend to restart at a fixed time at xx:00 which causes an uneven
+        // distribution of requests on the
+        // bStats backend. To circumvent this problem, we introduce some randomness into
+        // the initial and second delay.
+        // WARNING: You must not modify and part of this Metrics class, including the
+        // submit delay or frequency!
+        // WARNING: Modifying this code will get your plugin banned on bStats. Just
+        // don't do it!
+        long initialDelay = (long) (1000 * 60 * (3 + Math.random() * 3));
+        long secondDelay = (long) (1000 * 60 * (Math.random() * 30));
+        scheduler.schedule(submitTask, initialDelay, TimeUnit.MILLISECONDS);
+        scheduler.scheduleAtFixedRate(
+                submitTask, initialDelay + secondDelay, 1000 * 60 * 30, TimeUnit.MILLISECONDS);
+    }
+
+    private void submitData() {
+        final JsonObjectBuilder baseJsonBuilder = new JsonObjectBuilder();
+        appendPlatformDataConsumer.accept(baseJsonBuilder);
+        final JsonObjectBuilder serviceJsonBuilder = new JsonObjectBuilder();
+        appendServiceDataConsumer.accept(serviceJsonBuilder);
+        JsonObjectBuilder.JsonObject[] chartData =
+                customCharts.stream()
+                        .map(customChart -> customChart.getRequestJsonObject(errorLogger, logErrors))
+                        .filter(Objects::nonNull)
+                        .toArray(JsonObjectBuilder.JsonObject[]::new);
+        serviceJsonBuilder.appendField("id", serviceId);
+        serviceJsonBuilder.appendField("customCharts", chartData);
+        baseJsonBuilder.appendField("service", serviceJsonBuilder.build());
+        baseJsonBuilder.appendField("serverUUID", serverUuid);
+        baseJsonBuilder.appendField("metricsVersion", METRICS_VERSION);
+        JsonObjectBuilder.JsonObject data = baseJsonBuilder.build();
+        scheduler.execute(
+                () -> {
+                    try {
+                        // Send the data
+                        sendData(data);
+                    } catch (Exception e) {
+                        // Something went wrong! :(
+                        if (logErrors) {
+                            errorLogger.accept("Could not submit bStats metrics data", e);
+                        }
+                    }
+                });
+    }
+
+    private void sendData(JsonObjectBuilder.JsonObject data) throws Exception {
+        if (logSentData) {
+            infoLogger.accept("Sent bStats metrics data: " + data.toString());
+        }
+        String url = String.format(REPORT_URL, platform);
+        HttpsURLConnection connection = (HttpsURLConnection) new URL(url).openConnection();
+        // Compress the data to save bandwidth
+        byte[] compressedData = compress(data.toString());
+        connection.setRequestMethod("POST");
+        connection.addRequestProperty("Accept", "application/json");
+        connection.addRequestProperty("Connection", "close");
+        connection.addRequestProperty("Content-Encoding", "gzip");
+        connection.addRequestProperty("Content-Length", String.valueOf(compressedData.length));
+        connection.setRequestProperty("Content-Type", "application/json");
+        connection.setRequestProperty("User-Agent", "Metrics-Service/1");
+        connection.setDoOutput(true);
+        try (DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream())) {
+            outputStream.write(compressedData);
+        }
+        StringBuilder builder = new StringBuilder();
+        try (BufferedReader bufferedReader =
+                     new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
+            String line;
+            while ((line = bufferedReader.readLine()) != null) {
+                builder.append(line);
+            }
+        }
+        if (logResponseStatusText) {
+            infoLogger.accept("Sent data to bStats and received response: " + builder);
+        }
+    }
+
+    /**
+     * Checks that the class was properly relocated.
+     */
+    private void checkRelocation() {
+        // You can use the property to disable the check in your test environment
+        if (System.getProperty("bstats.relocatecheck") == null
+                || !System.getProperty("bstats.relocatecheck").equals("false")) {
+            // Maven's Relocate is clever and changes strings, too. So we have to use this
+            // little "trick" ... :D
+            final String defaultPackage =
+                    new String(new byte[]{'o', 'r', 'g', '.', 'b', 's', 't', 'a', 't', 's'});
+            final String examplePackage =
+                    new String(new byte[]{'y', 'o', 'u', 'r', '.', 'p', 'a', 'c', 'k', 'a', 'g', 'e'});
+            // We want to make sure no one just copy & pastes the example and uses the wrong
+            // package names
+            if (MetricsBase.class.getPackage().getName().startsWith(defaultPackage)
+                    || MetricsBase.class.getPackage().getName().startsWith(examplePackage)) {
+                throw new IllegalStateException("bStats Metrics class has not been relocated correctly!");
+            }
+        }
+    }
+}
@@ -0,0 +1,25 @@
+package me.caseload.knockbacksync.stats.custom;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlatformPlayer;
+import me.caseload.knockbacksync.player.PlayerData;
+import me.caseload.knockbacksync.stats.AdvancedPie;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class PlayerVersionsPie extends AdvancedPie {
+
+    // Gets the client versions of players online
+    public PlayerVersionsPie() {
+        super("player_version", () -> {
+            Map<String, Integer> valueMap = new HashMap<>();
+            for (PlatformPlayer player : Base.INSTANCE.platformServer.getOnlinePlayers()) {
+                PlayerData playerData = PlayerDataManager.getPlayerData(player.getUUID());
+                valueMap.put(playerData.getClientVersion().toString(), valueMap.getOrDefault(playerData.getClientVersion().toString(), 0) + 1);
+            }
+            return valueMap;
+        });
+    }
+}
@@ -0,0 +1,33 @@
+package me.caseload.knockbacksync.stats.custom;
+
+import java.io.InputStream;
+import java.net.URL;
+import java.security.MessageDigest;
+
+public class PluginJarHashProvider {
+
+    protected final URL jarURL;
+
+    public PluginJarHashProvider(URL jarURL) {
+        this.jarURL = jarURL;
+    }
+
+    public String getPluginJarHash() throws Exception {
+        MessageDigest digest = MessageDigest.getInstance("SHA-256");
+        try (InputStream is = jarURL.openStream()) {
+            byte[] buffer = new byte[8192];
+            int read;
+            while ((read = is.read(buffer)) > 0) {
+                digest.update(buffer, 0, read);
+            }
+        }
+        byte[] hash = digest.digest();
+        StringBuilder hexString = new StringBuilder();
+        for (byte b : hash) {
+            String hex = Integer.toHexString(0xff & b);
+            if (hex.length() == 1) hexString.append('0');
+            hexString.append(hex);
+        }
+        return hexString.toString();
+    }
+}
@@ -0,0 +1,13 @@
+package me.caseload.knockbacksync.stats.custom;
+
+import lombok.Getter;
+
+@Getter
+public abstract class StatsManager {
+
+    Metrics metrics;
+
+    public void init() {
+        throw new IllegalStateException("Empty stats class!");
+    }
+}
@@ -0,0 +1,55 @@
+package me.caseload.knockbacksync.util;
+
+import com.google.common.base.Preconditions;
+import me.caseload.knockbacksync.manager.PlayerDataManager;
+import me.caseload.knockbacksync.player.PlayerData;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.UUID;
+
+public class ChatUtil {
+    public static @NotNull String translateAlternateColorCodes(char altColorChar, @NotNull String textToTranslate) {
+        Preconditions.checkArgument(textToTranslate != null, "Cannot translate null text");
+        char[] b = textToTranslate.toCharArray();
+
+        for (int i = 0; i < b.length - 1; ++i) {
+            if (b[i] == altColorChar && "0123456789AaBbCcDdEeFfKkLlMmNnOoRrXx".indexOf(b[i + 1]) > -1) {
+                b[i] = 167;
+                b[i + 1] = Character.toLowerCase(b[i + 1]);
+            }
+        }
+
+        return new String(b);
+    }
+
+    public static String getPingMessage(UUID senderUUID, UUID targetUUID) {
+
+        String noun = "";
+        PlayerData playerData = null;
+        if (senderUUID == null) {
+            senderUUID = targetUUID;
+        }
+
+        if (senderUUID.equals(targetUUID) || targetUUID == null) {
+            playerData = PlayerDataManager.getPlayerData(senderUUID);
+            if (playerData == null) {
+                return ChatUtil.translateAlternateColorCodes('&', "&cKnockback synchronization is currently disabled for you!");
+            }
+            noun = "Your";
+        } else {
+            playerData = PlayerDataManager.getPlayerData(targetUUID);
+            if (playerData == null) {
+                return ChatUtil.translateAlternateColorCodes('&', "&cKnockback synchronization is currently disabled for the target player.");
+            }
+            noun = playerData.getPlatformPlayer().getName() + "'s";
+        }
+
+        String rawReturnString = null;
+        if (playerData.getPing() == null) {
+            rawReturnString = String.format("Accurate ping unavailable. %s estimated ping is &b" + playerData.getPlatformPlayer().getPing() + "&rms.", noun);
+        } else {
+            rawReturnString = String.format("%s real ping is &b%.3f&rms. Jitter: &b%.3f&rms. Spike: &b%s&r. Compensated ping: &b%.3f&rms.", noun, playerData.getPing(), playerData.getJitter(), playerData.isSpike(), playerData.getCompensatedPing());
+        }
+        return ChatUtil.translateAlternateColorCodes('&', rawReturnString);
+    }
+}
@@ -0,0 +1,31 @@
+package me.caseload.knockbacksync.util;
+
+import org.geysermc.floodgate.api.FloodgateApi;
+
+import java.util.UUID;
+
+public class FloodgateUtil {
+
+    private static boolean CHECKED_FOR_FLOODGATE;
+    private static boolean FLOODGATE_PRESENT;
+
+    public static boolean isFloodgatePlayer(UUID uuid) {
+        if (!CHECKED_FOR_FLOODGATE) {
+            try {
+                Class.forName("org.geysermc.floodgate.api.FloodgateApi");
+                FLOODGATE_PRESENT = true;
+            } catch (ClassNotFoundException e) {
+                FLOODGATE_PRESENT = false;
+            }
+            CHECKED_FOR_FLOODGATE = true;
+        }
+
+        if (FLOODGATE_PRESENT) {
+            return FloodgateApi.getInstance().isFloodgatePlayer(uuid);
+        } else {
+            return false;
+        }
+    }
+
+}
+
@@ -0,0 +1,82 @@
+package me.caseload.knockbacksync.util;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.util.reflection.Reflection;
+import me.caseload.knockbacksync.Base;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.UUID;
+
+public class GeyserUtil {
+    private static boolean CHECKED_FOR_GEYSER = false;
+    private static boolean GEYSER_PRESENT = false;
+    private static Class<?> GEYSER_CLASS;
+    private static Class<?> GEYSER_API_CLASS;
+    private static Method GEYSER_API_METHOD;
+    private static Method CONNECTION_BY_UUID_METHOD;
+
+    public static boolean isGeyserPlayer(UUID uuid) {
+        if (!CHECKED_FOR_GEYSER) {
+            try {
+                switch (Base.INSTANCE.platform) {
+                    case BUKKIT:
+                    case FOLIA:
+                        ClassLoader classLoader = PacketEvents.getAPI().getPlugin().getClass().getClassLoader();
+                        GEYSER_CLASS = classLoader.loadClass("org.geysermc.api.Geyser");
+                        break;
+                    case FABRIC:
+                        GEYSER_CLASS = Class.forName("org.geysermc.api.Geyser");
+                        GEYSER_PRESENT = true;
+                        break;
+                }
+
+            } catch (ClassNotFoundException e) {
+                GEYSER_PRESENT = false;
+            }
+            CHECKED_FOR_GEYSER = true;
+        }
+
+        if (GEYSER_PRESENT) {
+            if (GEYSER_API_CLASS == null) {
+                try {
+                    switch (Base.INSTANCE.platform) {
+                        case BUKKIT:
+                        case FOLIA:
+                            ClassLoader classLoader = PacketEvents.getAPI().getPlugin().getClass().getClassLoader();
+                            GEYSER_API_CLASS = classLoader.loadClass("org.geysermc.api.GeyserApiBase");
+                            break;
+                        case FABRIC:
+                            GEYSER_CLASS = Class.forName("org.geysermc.api.GeyserApiBase");
+                            GEYSER_PRESENT = true;
+                            break;
+                    }
+                } catch (ClassNotFoundException e) {
+                    e.printStackTrace();
+                }
+            }
+            if (GEYSER_API_METHOD == null) {
+                GEYSER_API_METHOD = Reflection.getMethodExact(GEYSER_CLASS, "api", null);
+            }
+            if (CONNECTION_BY_UUID_METHOD == null) {
+                CONNECTION_BY_UUID_METHOD = Reflection.getMethod(GEYSER_API_CLASS, "connectionByUuid", 0);
+            }
+            Object apiInstance = null;
+            try {
+                apiInstance = GEYSER_API_METHOD.invoke(null);
+            } catch (IllegalAccessException | InvocationTargetException e) {
+                e.printStackTrace();
+            }
+            Object connection = null;
+            try {
+                if (apiInstance != null) {
+                    connection = CONNECTION_BY_UUID_METHOD.invoke(apiInstance, uuid);
+                }
+            } catch (IllegalAccessException | InvocationTargetException e) {
+                e.printStackTrace();
+            }
+            return connection != null;
+        }
+        return false;
+    }
+}
@@ -0,0 +1,75 @@
+package me.caseload.knockbacksync.util;
+
+import me.caseload.knockbacksync.player.PlayerData;
+
+import static me.caseload.knockbacksync.player.PlayerData.TICK_RATE;
+
+public class MathUtil {
+
+    private static final double TERMINAL_VELOCITY = 3.92;
+    private static final double MULTIPLIER = 0.98;
+    private static final int MAX_TICKS = 30;
+
+    public static double getCompensatedVerticalVelocity(double velocity, double acceleration, int ticks) {
+        while (ticks > 0) {
+            velocity -= acceleration;
+            velocity *= MULTIPLIER;
+            ticks--;
+        }
+
+        return velocity;
+    }
+
+    public static double calculateDistanceTraveled(double velocity, int time, double acceleration) {
+        double totalDistance = 0;
+
+        for (int i = 0; i < time; i++) {
+            totalDistance += velocity;
+            velocity = ((velocity - acceleration) * MULTIPLIER);
+            velocity = Math.min(velocity, TERMINAL_VELOCITY);
+        }
+
+        return totalDistance;
+    }
+
+    public static int calculateFallTime(double initialVelocity, double distance, double acceleration) {
+        double velocity = Math.abs(initialVelocity);
+        int ticks = 0;
+
+        while (distance > 0) {
+            if (ticks > MAX_TICKS)
+                return -1;
+
+            velocity += acceleration;
+            velocity = Math.min(velocity, TERMINAL_VELOCITY);
+            velocity *= MULTIPLIER;
+            distance -= velocity;
+            ticks++;
+        }
+
+        return ticks;
+    }
+
+    public static int calculateTimeToMaxVelocity(double velocity, double acceleration) {
+        int ticks = 0;
+
+        while (velocity > 0) {
+            if (ticks > MAX_TICKS)
+                return -1;
+
+            velocity -= acceleration;
+            velocity = Math.min(velocity, TERMINAL_VELOCITY);
+            velocity *= MULTIPLIER;
+            ticks++;
+        }
+
+        return ticks;
+    }
+
+    public static double clamp(double num, double min, double max) {
+        if (num < min)
+            return min;
+
+        return Math.min(num, max);
+    }
+}
@@ -0,0 +1,31 @@
+package me.caseload.knockbacksync.util;
+
+import org.jetbrains.annotations.Nullable;
+
+public class NumberConversions {
+    public static long toLong(@Nullable Object object, long defaultValue) {
+        if (object instanceof Number) {
+            return ((Number) object).longValue();
+        } else {
+            try {
+                return Long.parseLong(object.toString());
+            } catch (NumberFormatException | NullPointerException ignored) {
+            }
+
+            return defaultValue;
+        }
+    }
+
+    public static int toInt(@Nullable Object object, int def) {
+        if (object instanceof Number) {
+            return ((Number) object).intValue();
+        } else {
+            try {
+                return Integer.parseInt(object.toString());
+            } catch (NumberFormatException | NullPointerException ignored) {
+            }
+
+            return def;
+        }
+    }
+}
@@ -0,0 +1,4 @@
+package me.caseload.knockbacksync.util.data;
+
+public interface MethodFinder {
+}
@@ -0,0 +1,29 @@
+package me.caseload.knockbacksync.util.data;
+
+import lombok.Getter;
+
+import java.util.Objects;
+
+@Getter
+public class Pair<A, B> {
+    private final A first;
+    private final B second;
+
+    public Pair(A first, B second) {
+        this.first = first;
+        this.second = second;
+    }
+
+    public static <T, K> Pair<T, K> of(T a, K b) {
+        return new Pair<T, K>(a, b);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof Pair)) {
+            return false;
+        }
+        Pair b = (Pair) o;
+        return Objects.equals(this.first, b.first) && Objects.equals(this.second, b.second);
+    }
+}
@@ -0,0 +1,27 @@
+package me.caseload.knockbacksync.world;
+
+import me.caseload.knockbacksync.player.PlatformPlayer;
+
+import java.util.Collection;
+import java.util.UUID;
+
+public interface PlatformServer {
+    Collection<PlatformPlayer> getOnlinePlayers();
+
+    PlatformPlayer getPlayer(UUID uuid);
+
+//        switch (KnockbackSyncBase.INSTANCE.platform) {
+//            case BUKKIT:
+//            case FOLIA:
+//                return Bukkit.getOnlinePlayers().stream()
+//                        .map(BukkitPlayer::new)
+//                        .collect(Collectors.toList());
+//            case FABRIC:
+//                MinecraftServer server = (MinecraftServer) FabricLoader.getInstance().getGameInstance();
+//                return server.getPlayerList().getPlayers().stream()
+//                        .map(FabricPlayer::new)
+//                        .collect(Collectors.toList());
+//            default:
+//                throw new IllegalStateException("Unexpected platform: " + KnockbackSyncBase.INSTANCE.platform);
+//        }
+}
@@ -0,0 +1,14 @@
+package me.caseload.knockbacksync.world;
+
+import com.github.retrooper.packetevents.protocol.world.states.WrappedBlockState;
+import com.github.retrooper.packetevents.util.Vector3d;
+import me.caseload.knockbacksync.world.raytrace.FluidHandling;
+import me.caseload.knockbacksync.world.raytrace.RayTraceResult;
+
+public interface PlatformWorld {
+    WrappedBlockState getBlockStateAt(int x, int y, int z);
+
+    WrappedBlockState getBlockStateAt(Vector3d loc);
+
+    RayTraceResult rayTraceBlocks(Vector3d start, Vector3d direction, double maxDistance, FluidHandling fluidHandling, boolean ignorePassableBlocks);
+}
@@ -0,0 +1,5 @@
+package me.caseload.knockbacksync.world.raytrace;
+
+public enum FluidHandling {
+    NONE, SOURCE_ONLY, ALWAYS
+}
@@ -0,0 +1,5 @@
+package me.caseload.knockbacksync.world.raytrace;
+
+public enum RayTraceOption {
+    BLOCK, FLUID, NONE
+}
@@ -0,0 +1,23 @@
+package me.caseload.knockbacksync.world.raytrace;
+
+import com.github.retrooper.packetevents.protocol.world.BlockFace;
+import com.github.retrooper.packetevents.protocol.world.states.WrappedBlockState;
+import com.github.retrooper.packetevents.util.Vector3d;
+import com.github.retrooper.packetevents.util.Vector3i;
+import lombok.Getter;
+
+@Getter
+public class RayTraceResult {
+    private final Vector3d hitPosition;
+    private final BlockFace blockFace;
+    private final Vector3i hitBlockPosition;
+    private final WrappedBlockState hitBlock;
+
+    public RayTraceResult(Vector3d hitPosition, BlockFace blockFace, Vector3i hitBlockPosition, WrappedBlockState hitBlock) {
+        this.hitPosition = hitPosition;
+        this.blockFace = blockFace;
+        this.hitBlockPosition = hitBlockPosition;
+        this.hitBlock = hitBlock;
+    }
+
+}
@@ -0,0 +1,195 @@
+#########################################
+#      KnockbackSync Configuration      #
+#########################################
+
+# Do not modify!
+config_version: 5
+
+# Plugin enabled state
+# Toggleable using /knockbacksync toggle
+# Required permission: knockbacksync.toggle
+enabled: true
+
+# Notify staff about update availability
+# Required permission: knockbacksync.update
+notify_updates: true
+
+# Grabs the ping of combat-tagged players every x ticks
+# Disabling this may lead to inaccuracies in calculations
+runnable:
+  enabled: true       # Runnable enabled state
+  interval: 5         # The interval in ticks between sending out pings to players
+  combat_timer: 30    # The timer in ticks before being considered out of combat
+
+# The minimum change in ping required for it to be considered a lag spike.
+# If the difference between the latest and previous ping is greater than or equal to
+# the threshold, the previous ping value is used to avoid calculation inaccuracies.
+spike_threshold: 20
+
+# OPTIONS: KEEPALIVE, PING, TRANSACTION - PING and TRANSACTION are aliases for each other and are effectively the same
+# The packet type used to measure ping by the runnable.
+# KEEPALIVE is the most accurate however sending too many of them too often (such as using a runnable with a low interval)
+# - May disconnect players, especially laggy ones if sent too often
+# - The default interval of 20 ticks or 1 second
+#    means it is in theory possible for a player to have a ping spike in-between two sword attacks
+#    and have it immediately spike back down, slightly throwing off knockback synchronization
+#    in practice this is very rare and the extra ping accuracy and precision is more valued
+# PING/TRANSACTION can be sent more often (and therefore better detect ping spikes) but are less precise
+# ping measured in ms with PING/TRANSACTION is typically within ± 5ms of actual but can be up to 50ms off
+ping_strategy: "KEEPALIVE"
+
+# Whether to try to detect when player is offground and apply less kb
+enable_offground_synchronization: true
+
+enable_message: "&aSuccessfully enabled KnockbackSync."
+disable_message: "&cSuccessfully disabled KnockbackSync."
+player_enable_message: "&aSuccessfully enabled KnockbackSync for %player%."
+player_disable_message: "&aSuccessfully &cdisabled &aKnockbackSync for %player%."
+player_ineligible_message: '&c%player% is ineligible for KnockbackSync. If you believe this is in error, please contact your server administrators.'
+reload_message: "&aSuccessfully reloaded KnockbackSync config."
+global_status_message: "&eGlobal KnockbackSync status: "
+player_status_message: "&e%player%'s KnockbackSync status: "
+player_disabled_global_message: "&cDisabled (Global toggle is off)"
+enable_offground_synchronization_message: "&aSuccessfully enabled offground synchronization."
+disable_offground_synchronization_message: "&cSuccessfully disabled offground synchronization."
+
+# This is the rate the server will use for (amongst other things) sending packets about entities to players
+# In other words it defines how often clients get updated velocity for other entities in the world
+# Note that certain events mark velocity as dirty and causes it to be immediately updated for 1 tick regardless of the tick interval
+# These include but are not limited to jumping, taking knockback, swimming, and a target entity being affected by a special mob attack
+# Such as the enderdragon's huge knockback
+# If an entity below doesn't exist in the version of the game your server is running in, changing the config for it will do nothing
+# Currently only modifying the player's tick interval is supported on Bukkit/Spigot/Paper + Folia
+# Modifying the tick interval of any entity is supported on Fabric.
+entity_tick_intervals:
+  player: 2 # This is 2 by default in vanilla and paper, change to 1 to test out the new feature
+  allay: 2
+  area_effect_cloud: Integer.MAX_VALUE
+  armadillo: 3
+  armor_stand: 3
+  arrow: 20
+  axolotl: 3
+  bat: 3
+  bee: 3
+  blaze: 3
+  block_display: 1
+  boat: 3
+  bogged: 3
+  breeze: 3
+  breeze_wind_charge: 10
+  camel: 3
+  cat: 3
+  cave_spider: 3
+  chest_boat: 3
+  chest_minecart: 3
+  chicken: 3
+  cod: 3
+  command_block_minecart: 3
+  cow: 3
+  creeper: 3
+  dolphin: 3
+  donkey: 3
+  dragon_fireball: 10
+  drowned: 3
+  egg: 10
+  elder_guardian: 3
+  end_crystal: Integer.MAX_VALUE
+  ender_dragon: 3
+  ender_pearl: 10
+  enderman: 3
+  endermite: 3
+  evoker: 3
+  evoker_fangs: 2
+  experience_bottle: 10
+  experience_orb: 20
+  eye_of_ender: 4
+  falling_block: 20
+  firework_rocket: 10
+  fox: 3
+  frog: 3
+  furnace_minecart: 3
+  ghast: 3
+  giant: 3
+  glow_item_frame: Integer.MAX_VALUE
+  glow_squid: 3
+  goat: 3
+  guardian: 3
+  hoglin: 3
+  hopper_minecart: 3
+  horse: 3
+  husk: 3
+  illusioner: 3
+  interaction: 3
+  iron_golem: 3
+  item: 20
+  item_display: 1
+  item_frame: Integer.MAX_VALUE
+  ominous_item_spawner: 3
+  fireball: 10
+  leash_knot: Integer.MAX_VALUE
+  lightning_bolt: Integer.MAX_VALUE
+  llama: 3
+  llama_spit: 10
+  magma_cube: 3
+  marker: 3
+  minecart: 3
+  mooshroom: 3
+  mule: 3
+  ocelot: 3
+  painting: Integer.MAX_VALUE
+  panda: 3
+  parrot: 3
+  phantom: 3
+  pig: 3
+  piglin: 3
+  piglin_brute: 3
+  pillager: 3
+  polar_bear: 3
+  potion: 10
+  pufferfish: 3
+  rabbit: 3
+  ravager: 3
+  salmon: 3
+  sheep: 3
+  shulker: 3
+  shulker_bullet: 3
+  silverfish: 3
+  skeleton: 3
+  skeleton_horse: 3
+  slime: 3
+  small_fireball: 10
+  sniffer: 3
+  snow_golem: 3
+  snowball: 10
+  spawner_minecart: 3
+  spectral_arrow: 20
+  spider: 3
+  squid: 3
+  stray: 3
+  strider: 3
+  tadpole: 3
+  text_display: 1
+  tnt: 10
+  tnt_minecart: 3
+  trader_llama: 3
+  trident: 20
+  tropical_fish: 3
+  turtle: 3
+  vex: 3
+  villager: 3
+  vindicator: 3
+  wandering_trader: 3
+  warden: 3
+  wind_charge: 10
+  witch: 3
+  wither: 3
+  wither_skeleton: 3
+  wither_skull: 10
+  wolf: 3
+  zoglin: 3
+  zombie: 3
+  zombie_horse: 3
+  zombie_villager: 3
+  zombified_piglin: 3
+  fishing_bobber: 5
+
@@ -0,0 +1,96 @@
+plugins {
+    id("fabric-loom")
+    id("com.gradleup.shadow")
+}
+
+loom {
+    accessWidenerPath = file("src/main/resources/knockbacksync.accesswidener")
+}
+
+base {
+    archivesName.set("${rootProject.property("archives_base_name")}-fabric")
+}
+
+val shadeThisThing: Configuration by configurations.creating {
+    isCanBeConsumed = true
+    isTransitive = true
+}
+
+// TODO migrate to only including sourceset for compile, test and javadoc tasks
+// Currently must build with gradle build -x test to skip test
+tasks.withType<JavaCompile>().configureEach {
+    source(project(":common").sourceSets.main.get().allSource)
+}
+
+tasks.withType<Javadoc>().configureEach {
+    source(project(":common").sourceSets.main.get().allJava)
+}
+
+tasks.named<JavaCompile>("compileTestJava") {
+    exclude("**/*")
+}
+
+dependencies {
+    implementation(project(":common"))
+
+    minecraft("com.mojang:minecraft:${rootProject.property("minecraft_version")}")
+    mappings(loom.layered {
+        officialMojangMappings()
+        parchment("org.parchmentmc.data:parchment-1.21:${rootProject.property("parchment_mappings")}")
+    })
+    modImplementation("net.fabricmc:fabric-loader:${rootProject.property("loader_version")}")
+    modImplementation("net.fabricmc.fabric-api:fabric-api:${rootProject.property("fabric_version")}")
+
+    include(modImplementation("me.lucko:fabric-permissions-api:0.3.1")!!)
+    include(modImplementation("com.github.retrooper:packetevents-fabric:2.5.0")!!)
+    include(modImplementation("org.incendo:cloud-fabric:2.0.0-beta.9")!!)
+
+    include(implementation("org.yaml:snakeyaml:2.0")!!)
+    include(implementation("org.kohsuke:github-api:1.326")!!)
+    // Required for org.kohsuke.github
+    include(implementation("com.fasterxml.jackson.core:jackson-databind:2.17.2")!!)
+    include(implementation("com.fasterxml.jackson.core:jackson-annotations:2.17.2")!!)
+    include(implementation("com.fasterxml.jackson.core:jackson-core:2.17.2")!!)
+    //    Not requires in modern Minecraft. May be needed if fabric version is backported to older versions
+    //    include(implementation("org.apache.commons:commons-lang3:3.17.0")!!)
+    //    include(implementation("commons-io:commons-io:2.16.1")!!)
+
+    compileOnly("org.geysermc.floodgate:api:2.0-SNAPSHOT")
+    compileOnly("org.projectlombok:lombok:1.18.34")
+    annotationProcessor("org.projectlombok:lombok:1.18.34")
+}
+
+tasks.shadowJar {
+    archiveClassifier.set("dev")
+    configurations = listOf(shadeThisThing)
+    isEnableRelocation = true
+    relocationPrefix = "${project.property("maven_group")}.${project.property("archives_base_name")}.shaded"
+    finalizedBy(tasks.remapJar)
+}
+tasks.remapJar {
+    archiveClassifier.set(null as String?)
+    dependsOn(tasks.shadowJar)
+    inputFile = tasks.shadowJar.get().archiveFile
+}
+
+tasks.processResources {
+    from(project(":common").sourceSets.main.get().resources)
+
+    inputs.property("version", project.version)
+    inputs.property("minecraft_version", rootProject.property("minecraft_version"))
+    inputs.property("loader_version", rootProject.property("loader_version"))
+    filteringCharset = "UTF-8"
+
+    filesMatching("fabric.mod.json") {
+        expand(
+            "version" to project.version,
+            "minecraft_version" to rootProject.property("minecraft_version"),
+            "loader_version" to rootProject.property("loader_version")
+        )
+    }
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
+}
@@ -0,0 +1,129 @@
+package me.caseload.knockbacksync;
+
+import com.github.retrooper.packetevents.PacketEvents;
+import io.github.retrooper.packetevents.factory.fabric.FabricPacketEventsBuilder;
+import lombok.Getter;
+import me.caseload.knockbacksync.entity.EntityTickManager;
+import me.caseload.knockbacksync.listener.fabric.FabricPlayerDamageListener;
+import me.caseload.knockbacksync.listener.fabric.FabricPlayerJoinQuitListener;
+import me.caseload.knockbacksync.listener.fabric.FabricPlayerKnockbackListener;
+import me.caseload.knockbacksync.listener.fabric.FabricTickRateChangeListener;
+import me.caseload.knockbacksync.manager.ConfigManager;
+import me.caseload.knockbacksync.mixin.ServerEntityMixin;
+import me.caseload.knockbacksync.permission.FabricPermissionChecker;
+import me.caseload.knockbacksync.permission.PermissionChecker;
+import me.caseload.knockbacksync.scheduler.FabricSchedulerAdapter;
+import me.caseload.knockbacksync.sender.FabricPlayerSelectorParser;
+import me.caseload.knockbacksync.sender.FabricSenderFactory;
+import me.caseload.knockbacksync.stats.custom.FabricStatsManager;
+import me.caseload.knockbacksync.stats.custom.PluginJarHashProvider;
+import me.caseload.knockbacksync.world.FabricServer;
+import net.fabricmc.loader.api.FabricLoader;
+import net.fabricmc.loader.api.ModContainer;
+import org.incendo.cloud.execution.ExecutionCoordinator;
+import org.incendo.cloud.fabric.FabricServerCommandManager;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.nio.file.Files;
+import java.util.Optional;
+import java.util.logging.Logger;
+
+public class FabricBase extends Base {
+
+    private final Logger logger = Logger.getLogger(FabricLoaderMod.class.getName());
+    private final FabricPermissionChecker permissionChecker = new FabricPermissionChecker();
+    @Getter
+    private final FabricSenderFactory fabricSenderFactory = new FabricSenderFactory(this);
+
+    public FabricBase() {
+        super.configManager = new ConfigManager();
+        super.playerSelectorParser = new FabricPlayerSelectorParser<>();
+        super.commandManager = new FabricServerCommandManager<>(
+                ExecutionCoordinator.simpleCoordinator(),
+                fabricSenderFactory
+        );
+        super.statsManager = new FabricStatsManager();
+        super.platformServer = new FabricServer();
+        super.pluginJarHashProvider = new PluginJarHashProvider(getJarURL());
+    }
+
+    @Override
+    public Logger getLogger() {
+        return logger;
+    }
+
+    @Override
+    public File getDataFolder() {
+        return FabricLoader.getInstance().getConfigDir().toFile();
+    }
+
+    @Override
+    public InputStream getResource(String filename) {
+        return getClass().getResourceAsStream("/config.yml");
+    }
+
+    @Override
+    public void load() {
+        PacketEvents.setAPI(FabricPacketEventsBuilder.build("knockbacksync"));
+        PacketEvents.getAPI().load();
+    }
+
+    @Override
+    public void initializeScheduler() {
+        scheduler = new FabricSchedulerAdapter();
+    }
+
+    @Override
+    protected void registerPlatformListeners() {
+        new FabricPlayerJoinQuitListener().register();
+        new FabricPlayerDamageListener().register();
+        new FabricPlayerKnockbackListener().register();
+        new FabricTickRateChangeListener().register();
+        super.simpleEventBus.registerStaticListeners(EntityTickManager.class);
+    }
+
+    @Override
+    protected String getVersion() {
+        return FabricLoader.getInstance().getModContainer("knockbacksync")
+                .map(modContainer -> modContainer.getMetadata().getVersion().getFriendlyString())
+                .orElse("unknown");
+    }
+
+    @Override
+    public void saveDefaultConfig() {
+        File configFile = new File(FabricLoader.getInstance().getConfigDir().toFile(), "config.yml");
+        if (!configFile.exists()) {
+            try (InputStream inputStream = getClass().getResourceAsStream("/config.yml")) {
+                if (inputStream != null) {
+                    Files.copy(inputStream, configFile.toPath());
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    @Override
+    public PermissionChecker getPermissionChecker() {
+        return permissionChecker;
+    }
+
+    private URL getJarURL() {
+        URL jarUrl = null;
+        Optional<ModContainer> modContainer = FabricLoader.getInstance().getModContainer("knockbacksync");
+        if (modContainer.isPresent()) {
+            String jarPath = modContainer.get().getRootPath().getFileSystem().toString();
+            jarPath = jarPath.replaceAll("^jar:", "").replaceAll("!/$", "");
+            try {
+                jarUrl = new File(jarPath).toURI().toURL();
+            } catch (MalformedURLException e) {
+                throw new RuntimeException(e);
+            }
+        }
+        return jarUrl;
+    }
+}
@@ -0,0 +1,30 @@
+package me.caseload.knockbacksync;
+
+import net.fabricmc.api.ModInitializer;
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
+import net.fabricmc.loader.api.FabricLoader;
+import net.fabricmc.loader.api.entrypoint.PreLaunchEntrypoint;
+import net.minecraft.server.MinecraftServer;
+
+public class FabricLoaderMod implements PreLaunchEntrypoint, ModInitializer {
+
+    private final Base core = new FabricBase();
+
+    public static MinecraftServer getServer() {
+        return (MinecraftServer) FabricLoader.getInstance().getGameInstance();
+    }
+
+    @Override
+    public void onPreLaunch() {
+        core.load();
+    }
+
+    @Override
+    public void onInitialize() {
+        core.enable();
+        ServerLifecycleEvents.SERVER_STOPPING.register((server) -> {
+            core.scheduler.shutdown();
+            core.statsManager.getMetrics().shutdown();
+        });
+    }
+}
@@ -0,0 +1,24 @@
+package me.caseload.knockbacksync.callback;
+
+import net.fabricmc.fabric.api.event.Event;
+import net.fabricmc.fabric.api.event.EventFactory;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.InteractionResult;
+import net.minecraft.world.phys.Vec3;
+
+public interface PlayerVelocityEvent {
+    Event<PlayerVelocityEvent> EVENT = EventFactory.createArrayBacked(PlayerVelocityEvent.class,
+            (listeners) -> (player, velocity) -> {
+                for (PlayerVelocityEvent listener : listeners) {
+                    InteractionResult result = listener.onVelocityChange(player, velocity);
+
+                    if (result != InteractionResult.PASS) {
+                        return result;
+                    }
+                }
+
+                return InteractionResult.PASS;
+            });
+
+    InteractionResult onVelocityChange(ServerPlayer player, Vec3 velocity);
+}
@@ -0,0 +1,15 @@
+package me.caseload.knockbacksync.callback;
+
+import net.fabricmc.fabric.api.event.Event;
+import net.fabricmc.fabric.api.event.EventFactory;
+
+public interface TickRateChangeEvent {
+    Event<TickRateChangeEvent> EVENT = EventFactory.createArrayBacked(TickRateChangeEvent.class,
+            (listeners) -> (oldTickRate, newTickRate) -> {
+                for (TickRateChangeEvent listener : listeners) {
+                    listener.onTickRateChange(oldTickRate, newTickRate);
+                }
+            });
+
+    void onTickRateChange(float oldTickRate, float newTickRate);
+}
@@ -0,0 +1,49 @@
+package me.caseload.knockbacksync.entity;
+
+import me.caseload.knockbacksync.Base;
+import me.caseload.knockbacksync.ConfigWrapper;
+import me.caseload.knockbacksync.event.events.ConfigReloadEvent;
+import me.caseload.knockbacksync.event.KBSyncEventHandler;
+import net.minecraft.world.entity.EntityType;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+
+public class EntityTickManager {
+    private static final Map<EntityType<?>, Integer> customTickIntervals = new HashMap<>();
+
+    static {
+        updateTickIntervals(Base.INSTANCE.getConfigManager().getConfigWrapper());
+    }
+
+    @KBSyncEventHandler
+    public static void updateTickIntervals(ConfigReloadEvent event) {
+        ConfigWrapper configWrapper = event.getConfigManager().getConfigWrapper();
+        updateTickIntervals(configWrapper);
+
+//        Map<String, Integer> entityIntervals = CustomUpdateIntervals.loadEntityIntervalsFromConfig();
+//        for (ServerLevel level : FabricLoaderMod.getServer().getAllLevels()) {
+//            CustomUpdateIntervals.updateIntervals(level, entityIntervals);
+//        }
+    }
+
+    private static void updateTickIntervals(ConfigWrapper configWrapper) {
+        customTickIntervals.clear();
+        for (String entityKey : configWrapper.getKeys("entity_tick_intervals")) {
+            try {
+                Optional<EntityType<?>> entityType = EntityType.byString(entityKey.toLowerCase());
+                if (entityType.isPresent()) {
+                    int interval = configWrapper.getInt("entity_tick_intervals." + entityKey, entityType.get().updateInterval());
+                    customTickIntervals.put(entityType.get(), interval);
+                }
+            } catch (IllegalArgumentException e) {
+                System.err.println("Invalid entity type in config: " + entityKey);
+            }
+        }
+    }
+
+    public static int getCustomUpdateInterval(EntityType<?> entityType) {
+        return customTickIntervals.getOrDefault(entityType, entityType.updateInterval());
+    }
+}