Ability cleanup.

- All the core abilities have been moved into the project folders
  such that they no longer require any extraction. As such, all
  servers should have the abilities already installed and ready
  to use, regardless of setup-retardation.
- An attempt at fixing the "invisible bosses" issue; a call to
  removeBoss was replaced with getBoss - hopefully this fixes
  all the issues.

src/com/garbagemule/MobArena/ArenaListener.java

@@ -469,7 +469,7 @@ public class ArenaListener
                     ap.getStats().inc("kills");
                     arena.getScoreboard().addKill(p);
                 }
-                MABoss boss = monsters.removeBoss(event.getEntity());
+                MABoss boss = monsters.getBoss(event.getEntity());
                 if (boss != null) {
                     ItemStack reward = boss.getReward();
                     if (reward != null) {

src/com/garbagemule/MobArena/MobArena.java

@@ -203,7 +203,8 @@ public class MobArena extends JavaPlugin
         File dir = new File(this.getDataFolder(), "abilities");
         if (!dir.exists()) dir.mkdir();
 
-        AbilityManager.loadAbilities(dir, getClass());
+        AbilityManager.loadCoreAbilities();
+        AbilityManager.loadAbilities(dir);
     }
     
     private void startMetrics() {

src/com/garbagemule/MobArena/waves/WaveParser.java

@@ -279,7 +279,7 @@ public class WaveParser
         if (ablts != null) {
             String[] parts = ablts.split(",");
             for (String ability : parts) {
-                Ability a = AbilityManager.fromString(ability.trim());
+                Ability a = AbilityManager.getAbility(ability.trim());
                 if (a == null) {
                     Messenger.warning(WaveError.BOSS_ABILITY.format(ability.trim(), name, arena.configName()));
                     continue;

src/com/garbagemule/MobArena/waves/ability/AbilityManager.java

@@ -16,6 +16,7 @@ import javax.tools.ToolProvider;
 
 import com.garbagemule.MobArena.Messenger;
 import com.garbagemule.MobArena.util.FileUtils;
+import com.garbagemule.MobArena.waves.ability.core.*;
 
 public class AbilityManager
 {
@@ -23,22 +24,58 @@ public class AbilityManager
     private static final String classpath = jarpath + ";" + System.getProperty("java.class.path");
     
     private static Map<String,Ability> abilities;
+    private static Map<String,Class<? extends Ability>> abs;
 
     /**
-     * Get an Ability by one of its aliases.
-     * @param name an Ability alias
-     * @return an Ability, if one exists with the given alias, false otherwise
+     * Get an instance of an ability by alias
+     * @param alias the alias of an ability
+     * @return a new Ability object, or null
      */
-    public static Ability fromString(String name) {
-        return abilities.get(name.toLowerCase().replaceAll("[-_.]", ""));
+    public static Ability getAbility(String alias) {
+        try {
+            Class<? extends Ability> cls = abs.get(alias.toLowerCase().replaceAll("[-_.]", ""));
+            return cls.newInstance();
+        } catch (Exception e) {
+            return null;
+        }
     }
 
     /**
-     * Load the known abilities as well as all custom abilities from
-     * the specified directory.
-     * @param dir a directory of .class (and/or .java) files
+     * Load all the core abilities included in MobArena
      */
-    public static void loadAbilities(File classDir, Class<?> cls) {
+    public static void loadCoreAbilities() {
+        if (abs == null) abs = new HashMap<String,Class<? extends Ability>>();
+
+        register(ChainLightning.class);
+        register(DisorientDistant.class);
+        register(DisorientNearby.class);
+        register(DisorientTarget.class);
+        register(FetchDistant.class);
+        register(FetchNearby.class);
+        register(FetchTarget.class);
+        register(FireAura.class);
+        register(Flood.class);
+        register(LightningAura.class);
+        register(LivingBomb.class);
+        register(ObsidianBomb.class);
+        register(PullDistant.class);
+        register(PullNearby.class);
+        register(PullTarget.class);
+        register(RootTarget.class);
+        register(ShootArrow.class);
+        register(ShootFireball.class);
+        register(ShufflePositions.class);
+        register(ThrowDistant.class);
+        register(ThrowNearby.class);
+        register(ThrowTarget.class);
+        register(WarpToPlayer.class);
+    }
+    
+    /**
+     * Load the custom abilities from the specified directory.
+     * @param classDir a directory of .class (and/or .java) files
+     */
+    public static void loadAbilities(File classDir) {
         abilities = new HashMap<String,Ability>();
         
         // Grab the source directory.
@@ -56,32 +93,21 @@ public class AbilityManager
             }
         }
         
-        /* If there is only one file in the directory, make sure it isn't the
-         * src/ folder, in which case there will be no .class files to load.
-         * In the case of no .class files, extract the defaults. */
-        String[] files = classDir.list();
-        if (files.length == 0 || (files.length == 1 && files[0].equals("src"))) {
-            Messenger.info("No boss abilities found. Extracting defaults...");
-            extractDefaultAbilities(classDir, cls);
-        }
-        
         // Load all the custom abilities.
         loadClasses(classDir);
     }
 
-    private static void extractDefaultAbilities(File classDir, Class<?> cls) {
-        // Grab a list of all the class files.
-        List<String> resources = FileUtils.listFilesOnPath("res/abilities/", ".class");
+    /**
+     * Register an ability by its class object
+     * @param cls the ability class
+     */
+    private static void register(Class<? extends Ability> cls) {
+        AbilityInfo info = cls.getAnnotation(AbilityInfo.class);
+        if (info == null) return;
 
-        // Check that there is stuff to extract.
-        if (resources == null || resources.isEmpty()) {
-            Messenger.severe("Couldn't extract the default boss abilities!");
-            return;
+        for (String alias : info.aliases()) {
+            abs.put(alias, cls);
         }
-        
-        // Extract everything.
-        List<File> files = FileUtils.extractResources(classDir, "abilities/", resources, cls);
-        Messenger.info("Extracted abilities: " + fileListToString(files, "$"));
     }
     
     private static void compileAbilities(File javaDir, File classDir) {
@@ -175,7 +201,7 @@ public class AbilityManager
     
     /**
      * (Compiles and) loads all custom abilities in the given directory.
-     * @param dir a directory
+     * @param classDir a directory
      */
     private static void loadClasses(File classDir) {
         // Grab the class loader

src/com/garbagemule/MobArena/waves/ability/core/ChainLightning.java

@@ -1,12 +1,15 @@
-import java.util.ArrayList;
-import java.util.List;
-
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
 
 @AbilityInfo(
     name = "Chain Lightning",

src/com/garbagemule/MobArena/waves/ability/core/DisorientDistant.java

@@ -1,9 +1,12 @@
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Disorient Distant",

src/com/garbagemule/MobArena/waves/ability/core/DisorientNearby.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Disorient Nearby",

src/com/garbagemule/MobArena/waves/ability/core/DisorientTarget.java

@@ -1,9 +1,12 @@
-import org.bukkit.Location;
-import org.bukkit.entity.LivingEntity;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.LivingEntity;
 
 @AbilityInfo(
     name = "Disorient Target",

src/com/garbagemule/MobArena/waves/ability/core/FetchDistant.java

@@ -1,9 +1,12 @@
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Fetch Distant",

src/com/garbagemule/MobArena/waves/ability/core/FetchNearby.java

@@ -1,9 +1,12 @@
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Fetch Nearby",

src/com/garbagemule/MobArena/waves/ability/core/FetchTarget.java

@@ -1,8 +1,11 @@
-import org.bukkit.entity.LivingEntity;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.entity.LivingEntity;
 
 @AbilityInfo(
     name = "Fetch Target",

src/com/garbagemule/MobArena/waves/ability/core/FireAura.java

@@ -1,8 +1,11 @@
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Fire Aura",

src/com/garbagemule/MobArena/waves/ability/core/Flood.java

@@ -1,9 +1,12 @@
-import org.bukkit.block.Block;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.block.Block;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Flood",

src/com/garbagemule/MobArena/waves/ability/core/LightningAura.java

@@ -1,9 +1,12 @@
-import org.bukkit.World;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Lightning Aura",

src/com/garbagemule/MobArena/waves/ability/core/LivingBomb.java

@@ -1,9 +1,12 @@
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Living Bomb",

src/com/garbagemule/MobArena/waves/ability/core/ObsidianBomb.java

@@ -1,13 +1,16 @@
+package com.garbagemule.MobArena.waves.ability.core;
+
+import com.garbagemule.MobArena.framework.Arena;
+import com.garbagemule.MobArena.waves.MABoss;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.entity.LivingEntity;
 
-import com.garbagemule.MobArena.framework.Arena;
-import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
-
 @AbilityInfo(
     name = "Obsidian Bomb",
     aliases = {"obsidianbomb"}

src/com/garbagemule/MobArena/waves/ability/core/PullDistant.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
-import org.bukkit.util.Vector;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
 
 @AbilityInfo(
     name = "Pull Distant",

src/com/garbagemule/MobArena/waves/ability/core/PullNearby.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
-import org.bukkit.util.Vector;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
 
 @AbilityInfo(
     name = "Pull Nearby",

src/com/garbagemule/MobArena/waves/ability/core/PullTarget.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.util.Vector;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.util.Vector;
 
 @AbilityInfo(
     name = "Pull Target",

src/com/garbagemule/MobArena/waves/ability/core/RootTarget.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
 
 /**
  * DISCLAIMER: The Ability source code is provided as-is, and the creator(s) of

src/com/garbagemule/MobArena/waves/ability/core/ShootArrow.java

@@ -1,8 +1,10 @@
-import org.bukkit.entity.Arrow;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import org.bukkit.entity.Arrow;
 
 @AbilityInfo(
     name = "Shoot Arrow",

src/com/garbagemule/MobArena/waves/ability/core/ShootFireball.java

@@ -1,8 +1,10 @@
-import org.bukkit.entity.Fireball;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import org.bukkit.entity.Fireball;
 
 @AbilityInfo(
     name = "Shoot Fireball",

src/com/garbagemule/MobArena/waves/ability/core/ShufflePositions.java

@@ -1,15 +1,17 @@
+package com.garbagemule.MobArena.waves.ability.core;
+
+import com.garbagemule.MobArena.framework.Arena;
+import com.garbagemule.MobArena.waves.MABoss;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import org.bukkit.Location;
+import org.bukkit.entity.LivingEntity;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
 
-import org.bukkit.Location;
-import org.bukkit.entity.LivingEntity;
-
-import com.garbagemule.MobArena.framework.Arena;
-import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
-
 @AbilityInfo(
     name = "Shuffle Positions",
     aliases = {"shuffle","shufflepositions"}

src/com/garbagemule/MobArena/waves/ability/core/ThrowDistant.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
-import org.bukkit.util.Vector;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
 
 @AbilityInfo(
     name = "Throw Distant",

src/com/garbagemule/MobArena/waves/ability/core/ThrowNearby.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
-import org.bukkit.util.Vector;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
 
 @AbilityInfo(
     name = "Throw Nearby",

src/com/garbagemule/MobArena/waves/ability/core/ThrowTarget.java

@@ -1,10 +1,13 @@
-import org.bukkit.Location;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.util.Vector;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.Location;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.util.Vector;
 
 @AbilityInfo(
     name = "Throw Target",

src/com/garbagemule/MobArena/waves/ability/core/WarpToPlayer.java

@@ -1,8 +1,11 @@
-import org.bukkit.entity.Player;
+package com.garbagemule.MobArena.waves.ability.core;
 
 import com.garbagemule.MobArena.framework.Arena;
 import com.garbagemule.MobArena.waves.MABoss;
-import com.garbagemule.MobArena.waves.ability.*;
+import com.garbagemule.MobArena.waves.ability.Ability;
+import com.garbagemule.MobArena.waves.ability.AbilityInfo;
+import com.garbagemule.MobArena.waves.ability.AbilityUtils;
+import org.bukkit.entity.Player;
 
 @AbilityInfo(
     name = "Warp",