Added custom XP multipliers (kp.xpmultiplier.<value>)

src/main/java/com/planetgallium/kitpvp/game/Stats.java

@@ -53,7 +53,8 @@ public class Stats {
     public void addExperience(Player p, int experienceToAdd) {
         if (levels.getBoolean("Levels.Levels.Enabled")) {
             int currentExperience = getStat("experience", p.getName());
-            setStat("experience", p.getName(), currentExperience + experienceToAdd);
+            int newExperience = applyPossibleXPMultiplier(p, currentExperience + experienceToAdd);
+            setStat("experience", p.getName(), newExperience);
             if (getStat("experience", p.getName()) >= getRegularOrRelativeNeededExperience(p.getName())) {
                 levelUp(p);
                 Bukkit.getPluginManager().callEvent(new PlayerLevelUpEvent(p, getStat("level", p.getName())));
@@ -61,6 +62,11 @@ public class Stats {
         }
     }
 
+    private int applyPossibleXPMultiplier(Player p, int experience) {
+        double xpMultiplier = Toolkit.getPermissionAmountDouble(p, "kp.xpmultiplier.", 1.0);
+        return (int) (experience * xpMultiplier);
+    }
+
     public void levelUp(Player p) {
 
         String username = p.getName();

src/main/java/com/planetgallium/kitpvp/util/Toolkit.java

@@ -297,6 +297,24 @@ public class Toolkit {
 
 	}
 
+	// TODO: eventually merge the below two methods into one
+	public static double getPermissionAmountDouble(Player player, String permissionPrefix, double defaultValue) {
+		double highestPermissionValue = 0.0;
+		for (PermissionAttachmentInfo attachmentInfo : player.getEffectivePermissions()) {
+			String permission = attachmentInfo.getPermission();
+			if (permission.startsWith(permissionPrefix)) {
+				// strips from some.permission.49 to just 49
+				double permissionValue = Double.parseDouble(permission.substring(permissionPrefix.length()));
+				if (permissionValue > highestPermissionValue) {
+					highestPermissionValue = permissionValue;
+				}
+			}
+		}
+
+		return highestPermissionValue == 0.0 ? defaultValue : highestPermissionValue;
+
+	}
+
 	public static int getPermissionAmount(Player player, String permissionPrefix, int defaultValue) {
 //		String permissionPrefix = "some.permission.here.";
 		if (!player.isOp()) {