Rewrite how abilities are registered and function/remove the json serializing in packets

src/main/java/com/minelittlepony/unicopia/KeyBind.java

@@ -1,9 +0,0 @@
-package com.minelittlepony.unicopia;
-
-public interface KeyBind {
-    String getKeyCategory();
-
-    String getKeyName();
-
-    int getKeyCode();
-}

src/main/java/com/minelittlepony/unicopia/Unicopia.java

@@ -7,7 +7,6 @@ import net.minecraft.resource.ResourceType;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
-import com.minelittlepony.unicopia.ability.Abilities;
 import com.minelittlepony.unicopia.advancement.BOHDeathCriterion;
 import com.minelittlepony.unicopia.block.UBlocks;
 import com.minelittlepony.unicopia.command.Commands;
@@ -47,7 +46,6 @@ public class Unicopia implements ModInitializer {
         UContainers.bootstrap();
         UStructures.bootstrap();
         URecipes.bootstrap();
-        Abilities.getInstance().init();
 
         CriterionsRegistry.register(BOHDeathCriterion.INSTANCE);
         ResourceManagerHelper.get(ResourceType.SERVER_DATA).registerReloadListener(Pages.instance());

src/main/java/com/minelittlepony/unicopia/ability/Abilities.java

@@ -1,65 +1,36 @@
 package com.minelittlepony.unicopia.ability;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
+import org.lwjgl.glfw.GLFW;
 
-import com.minelittlepony.unicopia.Race;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.registry.MutableRegistry;
+import net.minecraft.util.registry.SimpleRegistry;
 
-public final class Abilities {
+public interface Abilities {
+    MutableRegistry<Integer> KEYS_CODES = new SimpleRegistry<>();
+    MutableRegistry<Ability<?>> REGISTRY = new SimpleRegistry<>();
 
-    private static final Abilities INSTANCE = new Abilities();
+    // unicorn
+    Ability<?> TELEPORT = register(new UnicornTeleportAbility(), "teleport", GLFW.GLFW_KEY_O);
+    Ability<?> CAST = register(new UnicornCastingAbility(), "cast", GLFW.GLFW_KEY_P);
 
-    public static Abilities getInstance() {
-        return INSTANCE;
-    }
+    // earth
+    Ability<?> GROW = register(new EarthPonyGrowAbility(), "grow", GLFW.GLFW_KEY_N);
+    Ability<?> STOMP = register(new EarthPonyStompAbility(), "stomp", GLFW.GLFW_KEY_M);
 
-    private final Map<Integer, List<Ability<? extends Ability.IData>>> keyToPowerMap = new HashMap<>();
+    // pegasus
+    Ability<?> CARRY = register(new PegasusCarryAbility(), "carry", GLFW.GLFW_KEY_K);
+    Ability<?> CLOUD = register(new PegasusCloudInteractionAbility(), "cloud", GLFW.GLFW_KEY_J);
 
-    private final Map<String, Ability<? extends Ability.IData>> powerNamesMap = new HashMap<>();
+    // changeling
+    Ability<?> FEED = register(new ChangelingFeedAbility(), "feed", GLFW.GLFW_KEY_O);
+    Ability<?> TRAP = register(new ChangelingTrapAbility(), "trap", GLFW.GLFW_KEY_L);
 
-    private Abilities() {
-    }
+    Ability<?> DISGUISE = register(new ChangelingDisguiseAbility(), "disguise", GLFW.GLFW_KEY_P);
 
-    public void init() {
-        register(new UnicornTeleportAbility());
-        register(new UnicornCastingAbility());
-        register(new EarthPonyGrowAbility());
-        register(new ChangelingFeedAbility());
-        register(new PegasusCarryAbility());
-        register(new PegasusCloudInteractionAbility());
-        register(new ChangelingTrapAbility());
-        register(new EarthPonyStompAbility());
-        register(new ChangelingDisguiseAbility());
-    }
-
-    public boolean hasRegisteredPower(int keyCode) {
-        return keyToPowerMap.containsKey(keyCode);
-    }
-
-    public Optional<Ability<? extends Ability.IData>> getCapablePowerFromKey(int keyCode, Race race) {
-        return getKeyCodePool(keyCode).stream()
-                .filter(power -> power.canUse(race))
-                .findFirst();
-    }
-
-    public Optional<Ability<? extends Ability.IData>> getPowerFromName(String name) {
-        return Optional.ofNullable(powerNamesMap.get(name));
-    }
-
-    private List<Ability<? extends Ability.IData>> getKeyCodePool(int keyCode) {
-        return keyToPowerMap.computeIfAbsent(keyCode, ArrayList::new);
-    }
-
-    public void register(Ability<? extends Ability.IData> power) {
-        getKeyCodePool(power.getKeyCode()).add(power);
-        powerNamesMap.put(power.getKeyName(), power);
-    }
-
-    public Collection<Ability<? extends Ability.IData>> getValues() {
-        return powerNamesMap.values();
+    static <T extends Ability<?>> T register(T power, String name, int keyCode) {
+        Identifier id = new Identifier("unicopia", name);
+        KEYS_CODES.add(id, keyCode);
+        return REGISTRY.add(id, power);
     }
 }

src/main/java/com/minelittlepony/unicopia/ability/Ability.java

@@ -2,21 +2,13 @@ package com.minelittlepony.unicopia.ability;
 
 import javax.annotation.Nullable;
 
-import com.google.gson.annotations.Expose;
-import com.minelittlepony.unicopia.KeyBind;
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.player.Pony;
 
-import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
 
-public interface Ability<T extends Ability.IData> extends KeyBind {
-
-    @Override
-    default String getKeyCategory() {
-        return "unicopia.category.name";
-    }
-
+public interface Ability<T extends Hit> {
     /**
      * Returns the number of ticks the player must hold the ability key to trigger this ability.
      */
@@ -53,7 +45,7 @@ public interface Ability<T extends Ability.IData> extends KeyBind {
     @Nullable
     T tryActivate(Pony player);
 
-    Class<T> getPackageType();
+    Hit.Serializer<T> getSerializer();
 
     /**
      * Called to actually apply the ability.
@@ -75,48 +67,4 @@ public interface Ability<T extends Ability.IData> extends KeyBind {
      * @param player    The current player
      */
     void postApply(Pony player);
-
-    public interface IData {
-
-    }
-
-    class Pos implements Ability.IData {
-        @Expose
-        public int x;
-
-        @Expose
-        public int y;
-
-        @Expose
-        public int z;
-
-        public Pos(int x, int y, int z) {
-            this.x = x;
-            this.y = y;
-            this.z = z;
-        }
-
-        public Pos(BlockPos pos) {
-            x = pos.getX();
-            y = pos.getY();
-            z = pos.getZ();
-        }
-
-        public BlockPos pos() {
-            return new BlockPos(x, y, z);
-        }
-    }
-
-    class Hit implements Ability.IData {
-
-    }
-
-    class Numeric implements IData {
-        @Expose
-        public int type;
-
-        public Numeric(int t) {
-            type = t;
-        }
-    }
 }

src/main/java/com/minelittlepony/unicopia/ability/AbilityDispatcher.java

@@ -1,18 +1,20 @@
-package com.minelittlepony.unicopia.entity.player;
+package com.minelittlepony.unicopia.ability;
+
+import java.util.Optional;
 
 import javax.annotation.Nullable;
 
-import com.minelittlepony.unicopia.ability.AbilityReceiver;
-import com.minelittlepony.unicopia.ability.Ability;
-import com.minelittlepony.unicopia.ability.Abilities;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.Updatable;
+import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.network.MsgPlayerAbility;
 import com.minelittlepony.unicopia.network.Channel;
 import com.minelittlepony.unicopia.util.NbtSerialisable;
 
 import net.minecraft.nbt.CompoundTag;
+import net.minecraft.util.Identifier;
 
-class AbilityDelegate implements AbilityReceiver, Updatable, NbtSerialisable {
+public class AbilityDispatcher implements Updatable, NbtSerialisable {
 
     private final Pony player;
 
@@ -31,10 +33,9 @@ class AbilityDelegate implements AbilityReceiver, Updatable, NbtSerialisable {
      */
     private boolean triggered;
 
-    @Nullable
-    private Ability<?> activeAbility = null;
+    private Optional<Ability<?>> activeAbility = Optional.empty();
 
-    public AbilityDelegate(Pony player) {
+    public AbilityDispatcher(Pony player) {
         this.player = player;
     }
 
@@ -42,53 +43,47 @@ class AbilityDelegate implements AbilityReceiver, Updatable, NbtSerialisable {
      * Returns true if the currrent ability can we swapped out.
      */
     boolean canSwitchStates() {
-        return activeAbility == null || (warmup != 0) || (triggered && cooldown == 0);
+        return !activeAbility.isPresent() || (warmup != 0) || (triggered && cooldown == 0);
     }
 
-    @Override
     public void tryUseAbility(Ability<?> power) {
         if (canSwitchStates()) {
             setAbility(power);
         }
     }
 
-    @Override
     public void tryClearAbility() {
         if (canSwitchStates()) {
             setAbility(null);
         }
     }
 
-    protected synchronized void setAbility(@Nullable Ability<?> power) {
-        if (activeAbility != power) {
+    protected synchronized void setAbility(Ability<?> power) {
+        if (activeAbility.orElse(null) != power) {
             triggered = false;
-            activeAbility = power;
-            warmup = power == null ? 0 : power.getWarmupTime(player);
+            activeAbility = Optional.ofNullable(power);
+            warmup = activeAbility.map(p -> p.getWarmupTime(player)).orElse(0);
             cooldown = 0;
         }
     }
 
     @Nullable
-    protected synchronized Ability<?> getUsableAbility() {
-        if (!(activeAbility == null || (triggered && warmup == 0 && cooldown == 0)) && activeAbility.canUse(player.getSpecies())) {
-            return activeAbility;
-        }
-        return null;
+    protected synchronized Optional<Ability<?>> getUsableAbility() {
+        return activeAbility.filter(ability -> {
+            return (triggered && warmup == 0 && cooldown == 0) && ability.canUse(player.getSpecies());
+        });
     }
 
-    @Override
     public int getRemainingCooldown() {
         return cooldown;
     }
 
     @Override
     public void onUpdate() {
-        Ability<?> ability = getUsableAbility();
-
-        if (ability == null) {
-            return;
-        }
+        getUsableAbility().ifPresent(this::activate);
+    }
 
+    private <T extends Hit> void activate(Ability<T> ability) {
         if (warmup > 0) {
             warmup--;
             ability.preApply(player);
@@ -110,10 +105,10 @@ class AbilityDelegate implements AbilityReceiver, Updatable, NbtSerialisable {
             cooldown = ability.getCooldownTime(player);
 
             if (player.isClientPlayer()) {
-                Ability.IData data = ability.tryActivate(player);
+                T data = ability.tryActivate(player);
 
                 if (data != null) {
-                    Channel.PLAYER_ABILITY.send(new MsgPlayerAbility(ability, data));
+                    Channel.PLAYER_ABILITY.send(new MsgPlayerAbility<>(ability, data));
                 } else {
                     cooldown = 0;
                 }
@@ -130,26 +125,16 @@ class AbilityDelegate implements AbilityReceiver, Updatable, NbtSerialisable {
         compound.putBoolean("triggered", triggered);
         compound.putInt("warmup", warmup);
         compound.putInt("cooldown", cooldown);
-
-        Ability<?> ability = getUsableAbility();
-
-        if (ability != null) {
-            compound.putString("activeAbility", ability.getKeyName());
-        }
+        getUsableAbility().ifPresent(ability -> {
+            compound.putString("activeAbility", Abilities.REGISTRY.getId(ability).toString());
+        });
     }
 
     @Override
     public void fromNBT(CompoundTag compound) {
-        activeAbility = null;
-
         triggered = compound.getBoolean("triggered");
         warmup = compound.getInt("warmup");
         cooldown = compound.getInt("cooldown");
-
-        if (compound.contains("activeAbility")) {
-            Abilities.getInstance()
-                .getPowerFromName(compound.getString("activeAbility"))
-                .ifPresent(p -> activeAbility = p);
-        }
+        activeAbility = Abilities.REGISTRY.getOrEmpty(new Identifier(compound.getString("activeAbility")));
     }
 }

src/main/java/com/minelittlepony/unicopia/ability/AbilityReceiver.java

@@ -1,12 +0,0 @@
-package com.minelittlepony.unicopia.ability;
-
-import com.minelittlepony.unicopia.ability.Ability;
-
-public interface AbilityReceiver {
-
-    void tryUseAbility(Ability<?> power);
-
-    void tryClearAbility();
-
-    int getRemainingCooldown();
-}

src/main/java/com/minelittlepony/unicopia/ability/ChangelingDisguiseAbility.java

@@ -3,9 +3,8 @@ package com.minelittlepony.unicopia.ability;
 
 import javax.annotation.Nullable;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.InAnimate;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.magic.spell.DisguiseSpell;
@@ -29,20 +28,10 @@ import net.minecraft.util.math.BlockPos;
  */
 public class ChangelingDisguiseAbility extends ChangelingFeedAbility {
 
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.disguise";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_P;
-    }
-
     @Nullable
     @Override
     public Hit tryActivate(Pony player) {
-        return new Hit();
+        return Hit.INSTANCE;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/ChangelingFeedAbility.java

@@ -5,9 +5,8 @@ import java.util.stream.Collectors;
 
 import javax.annotation.Nullable;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particles.ParticleUtils;
 import com.minelittlepony.unicopia.particles.UParticles;
@@ -30,17 +29,7 @@ import net.minecraft.particle.ParticleTypes;
 /**
  * Changeling ability to restore health from mobs
  */
-public class ChangelingFeedAbility implements Ability<Ability.Hit> {
-
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.feed";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_O;
-    }
+public class ChangelingFeedAbility implements Ability<Hit> {
 
     @Override
     public int getWarmupTime(Pony player) {
@@ -62,7 +51,7 @@ public class ChangelingFeedAbility implements Ability<Ability.Hit> {
     public Hit tryActivate(Pony player) {
         if (canFeed(player)) {
             if (!getTargets(player).isEmpty()) {
-                return new Hit();
+                return Hit.INSTANCE;
             }
         }
 
@@ -84,8 +73,8 @@ public class ChangelingFeedAbility implements Ability<Ability.Hit> {
     }
 
     @Override
-    public Class<Hit> getPackageType() {
-        return Hit.class;
+    public Hit.Serializer<Hit> getSerializer() {
+        return Hit.SERIALIZER;
     }
 
     protected List<LivingEntity> getTargets(Pony player) {

src/main/java/com/minelittlepony/unicopia/ability/ChangelingTrapAbility.java

@@ -2,23 +2,12 @@ package com.minelittlepony.unicopia.ability;
 
 import javax.annotation.Nullable;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.magic.spell.ChangelingTrapSpell;
 
-public class ChangelingTrapAbility implements Ability<Ability.Hit> {
-
-    @Override
-    public String getKeyName() {
-        return "engulf";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_L;
-    }
+public class ChangelingTrapAbility implements Ability<Hit> {
 
     @Override
     public int getWarmupTime(Pony player) {
@@ -38,12 +27,12 @@ public class ChangelingTrapAbility implements Ability<Ability.Hit> {
     @Nullable
     @Override
     public Hit tryActivate(Pony player) {
-        return new Hit();
+        return Hit.INSTANCE;
     }
 
     @Override
-    public Class<Hit> getPackageType() {
-        return Hit.class;
+    public Hit.Serializer<Hit> getSerializer() {
+        return Hit.SERIALIZER;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/EarthPonyGrowAbility.java

@@ -1,8 +1,8 @@
 package com.minelittlepony.unicopia.ability;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
+import com.minelittlepony.unicopia.ability.data.Pos;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particles.MagicParticleEffect;
 import com.minelittlepony.unicopia.util.VecHelper;
@@ -20,17 +20,7 @@ import net.minecraft.world.World;
 /**
  * Earth Pony ability to grow crops
  */
-public class EarthPonyGrowAbility implements Ability<Ability.Pos> {
-
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.grow";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_N;
-    }
+public class EarthPonyGrowAbility implements Ability<Pos> {
 
     @Override
     public int getWarmupTime(Pony player) {
@@ -59,8 +49,8 @@ public class EarthPonyGrowAbility implements Ability<Ability.Pos> {
     }
 
     @Override
-    public Class<Pos> getPackageType() {
-        return Pos.class;
+    public Hit.Serializer<Pos> getSerializer() {
+        return Pos.SERIALIZER;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/EarthPonyStompAbility.java

@@ -2,13 +2,12 @@ package com.minelittlepony.unicopia.ability;
 
 import java.util.ArrayList;
 import java.util.List;
-import org.lwjgl.glfw.GLFW;
-
 import com.google.common.collect.Lists;
-import com.google.gson.annotations.Expose;
 import com.minelittlepony.unicopia.AwaitTickQueue;
 import com.minelittlepony.unicopia.Race;
 import com.minelittlepony.unicopia.TreeType;
+import com.minelittlepony.unicopia.ability.data.Hit;
+import com.minelittlepony.unicopia.ability.data.Multi;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.util.MagicalDamageSource;
 import com.minelittlepony.unicopia.util.PosHelper;
@@ -41,7 +40,7 @@ import net.minecraft.world.World;
 /**
  * Earth Pony stomping ability
  */
-public class EarthPonyStompAbility implements Ability<EarthPonyStompAbility.Data> {
+public class EarthPonyStompAbility implements Ability<Multi> {
 
     private final double rad = 4;
 
@@ -50,16 +49,6 @@ public class EarthPonyStompAbility implements Ability<EarthPonyStompAbility.Data
              rad,  rad,  rad
      );
 
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.earth";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_M;
-    }
-
     @Override
     public int getWarmupTime(Pony player) {
         return 3;
@@ -76,7 +65,7 @@ public class EarthPonyStompAbility implements Ability<EarthPonyStompAbility.Data
     }
 
     @Override
-    public EarthPonyStompAbility.Data tryActivate(Pony player) {
+    public Multi tryActivate(Pony player) {
         HitResult mop = VecHelper.getObjectMouseOver(player.getOwner(), 6, 1);
 
         if (mop instanceof BlockHitResult && mop.getType() == HitResult.Type.BLOCK) {
@@ -86,21 +75,21 @@ public class EarthPonyStompAbility implements Ability<EarthPonyStompAbility.Data
             if (state.getBlock() instanceof LogBlock) {
                 pos = getBaseOfTree(player.getWorld(), state, pos);
                 if (measureTree(player.getWorld(), state, pos) > 0) {
-                    return new Data(pos.getX(), pos.getY(), pos.getZ(), 1);
+                    return new Multi(pos.getX(), pos.getY(), pos.getZ(), 1);
                 }
             }
         }
 
         if (!player.getOwner().onGround && !player.getOwner().abilities.flying) {
             player.getOwner().addVelocity(0, -6, 0);
-            return new Data(0, 0, 0, 0);
+            return new Multi(0, 0, 0, 0);
         }
         return null;
     }
 
     @Override
-    public Class<EarthPonyStompAbility.Data> getPackageType() {
-        return EarthPonyStompAbility.Data.class;
+    public Hit.Serializer<Multi> getSerializer() {
+        return Multi.SERIALIZER;
     }
 
     public static BlockPos getSolidBlockBelow(BlockPos pos, World w) {
@@ -116,7 +105,7 @@ public class EarthPonyStompAbility implements Ability<EarthPonyStompAbility.Data
     }
 
     @Override
-    public void apply(Pony iplayer, Data data) {
+    public void apply(Pony iplayer, Multi data) {
 
         PlayerEntity player = iplayer.getOwner();
 
@@ -452,14 +441,4 @@ public class EarthPonyStompAbility implements Ability<EarthPonyStompAbility.Data
     private boolean variantEquals(BlockState one, BlockState two) {
         return TreeType.get(one).equals(TreeType.get(two));
     }
-
-    protected static class Data extends Ability.Pos {
-        @Expose
-        public int hitType;
-
-        public Data(int x, int y, int z, int hit) {
-            super(x, y, z);
-            hitType = hit;
-        }
-    }
 }

src/main/java/com/minelittlepony/unicopia/ability/PegasusCarryAbility.java

@@ -1,8 +1,7 @@
 package com.minelittlepony.unicopia.ability;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.util.VecHelper;
 
@@ -16,17 +15,7 @@ import net.minecraft.world.World;
 /**
  * Pegasi ability to pick up and carry other players
  */
-public class PegasusCarryAbility implements Ability<Ability.Hit> {
-
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.carry";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_K;
-    }
+public class PegasusCarryAbility implements Ability<Hit> {
 
     @Override
     public int getWarmupTime(Pony player) {
@@ -45,7 +34,7 @@ public class PegasusCarryAbility implements Ability<Ability.Hit> {
 
     @Override
     public Hit tryActivate(Pony player) {
-        return new Hit();
+        return Hit.INSTANCE;
     }
 
     protected LivingEntity findRider(PlayerEntity player, World w) {
@@ -61,8 +50,8 @@ public class PegasusCarryAbility implements Ability<Ability.Hit> {
     }
 
     @Override
-    public Class<Hit> getPackageType() {
-        return Hit.class;
+    public Hit.Serializer<Hit> getSerializer() {
+        return Hit.SERIALIZER;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/PegasusCloudInteractionAbility.java

@@ -2,9 +2,9 @@ package com.minelittlepony.unicopia.ability;
 
 import java.util.Optional;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
+import com.minelittlepony.unicopia.ability.data.Numeric;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particles.MagicParticleEffect;
 import com.minelittlepony.unicopia.particles.UParticles;
@@ -12,17 +12,7 @@ import com.minelittlepony.unicopia.util.VecHelper;
 
 import net.minecraft.entity.Entity;
 
-public class PegasusCloudInteractionAbility implements Ability<Ability.Numeric> {
-
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.cloud";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_J;
-    }
+public class PegasusCloudInteractionAbility implements Ability<Numeric> {
 
     @Override
     public int getWarmupTime(Pony player) {
@@ -50,8 +40,8 @@ public class PegasusCloudInteractionAbility implements Ability<Ability.Numeric>
     }
 
     @Override
-    public Class<Numeric> getPackageType() {
-        return Numeric.class;
+    public Hit.Serializer<Numeric> getSerializer() {
+        return Numeric.SERIALIZER;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/UnicornCastingAbility.java

@@ -1,8 +1,7 @@
 package com.minelittlepony.unicopia.ability;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.magic.spell.ShieldSpell;
 import com.minelittlepony.unicopia.particles.MagicParticleEffect;
@@ -11,17 +10,7 @@ import com.minelittlepony.unicopia.particles.MagicParticleEffect;
  * A magic casting ability for unicorns.
  * (only shields for now)
  */
-public class UnicornCastingAbility implements Ability<Ability.Hit> {
-
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.magic";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_P;
-    }
+public class UnicornCastingAbility implements Ability<Hit> {
 
     @Override
     public int getWarmupTime(Pony player) {
@@ -40,12 +29,12 @@ public class UnicornCastingAbility implements Ability<Ability.Hit> {
 
     @Override
     public Hit tryActivate(Pony player) {
-        return new Hit();
+        return Hit.INSTANCE;
     }
 
     @Override
-    public Class<Hit> getPackageType() {
-        return Hit.class;
+    public Hit.Serializer<Hit> getSerializer() {
+        return Hit.SERIALIZER;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/UnicornTeleportAbility.java

@@ -1,8 +1,8 @@
 package com.minelittlepony.unicopia.ability;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.minelittlepony.unicopia.Race;
+import com.minelittlepony.unicopia.ability.data.Hit;
+import com.minelittlepony.unicopia.ability.data.Pos;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particles.MagicParticleEffect;
 import com.minelittlepony.unicopia.util.VecHelper;
@@ -27,18 +27,7 @@ import net.minecraft.world.World;
 /**
  * Unicorn teleport ability
  */
-public class UnicornTeleportAbility implements Ability<Ability.Pos> {
-
-    @Override
-    public String getKeyName() {
-        return "unicopia.power.teleport";
-    }
-
-    @Override
-    public int getKeyCode() {
-        return GLFW.GLFW_KEY_O;
-    }
-
+public class UnicornTeleportAbility implements Ability<Pos> {
     @Override
     public int getWarmupTime(Pony player) {
         return 20;
@@ -107,11 +96,9 @@ public class UnicornTeleportAbility implements Ability<Ability.Pos> {
         return new Pos(pos.getX(), pos.getY(), pos.getZ());
     }
 
-
-
     @Override
-    public Class<Pos> getPackageType() {
-        return Pos.class;
+    public Hit.Serializer<Pos> getSerializer() {
+        return Pos.SERIALIZER;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/data/Hit.java

@@ -0,0 +1,21 @@
+package com.minelittlepony.unicopia.ability.data;
+
+import net.minecraft.util.PacketByteBuf;
+
+public class Hit {
+
+    public static final Hit INSTANCE = new Hit();
+    public static final Serializer<Hit> SERIALIZER = buf -> INSTANCE;
+
+    protected Hit() {
+
+    }
+
+    public void toBuffer(PacketByteBuf buf) {
+
+    }
+
+    public interface Serializer<T extends Hit> {
+        T fromBuffer(PacketByteBuf buf);
+    }
+}

src/main/java/com/minelittlepony/unicopia/ability/data/Multi.java

@@ -0,0 +1,25 @@
+package com.minelittlepony.unicopia.ability.data;
+
+import net.minecraft.util.PacketByteBuf;
+
+public class Multi extends Pos {
+    public static final Serializer<Multi> SERIALIZER = Multi::new;
+
+    public int hitType;
+
+    Multi(PacketByteBuf buf) {
+        super(buf);
+        hitType = buf.readInt();
+    }
+
+    @Override
+    public void toBuffer(PacketByteBuf buf) {
+        super.toBuffer(buf);
+        buf.writeInt(hitType);
+    }
+
+    public Multi(int x, int y, int z, int hit) {
+        super(x, y, z);
+        hitType = hit;
+    }
+}

src/main/java/com/minelittlepony/unicopia/ability/data/Numeric.java

@@ -0,0 +1,25 @@
+package com.minelittlepony.unicopia.ability.data;
+
+import com.google.gson.annotations.Expose;
+
+import net.minecraft.util.PacketByteBuf;
+
+public class Numeric extends Hit {
+    public static final Serializer<Numeric> SERIALIZER = Numeric::new;
+
+    @Expose
+    public int type;
+
+    Numeric(PacketByteBuf buf) {
+        type = buf.readInt();
+    }
+
+    @Override
+    public void toBuffer(PacketByteBuf buf) {
+        buf.writeInt(type);
+    }
+
+    public Numeric(int t) {
+        type = t;
+    }
+}

src/main/java/com/minelittlepony/unicopia/ability/data/Pos.java

@@ -0,0 +1,42 @@
+package com.minelittlepony.unicopia.ability.data;
+
+import net.minecraft.util.PacketByteBuf;
+import net.minecraft.util.math.BlockPos;
+
+public class Pos extends Hit {
+
+    public static final Serializer<Pos> SERIALIZER = Pos::new;
+
+    public int x;
+    public int y;
+    public int z;
+
+    Pos(PacketByteBuf buf) {
+        x = buf.readInt();
+        y = buf.readInt();
+        z = buf.readInt();
+    }
+
+    @Override
+    public void toBuffer(PacketByteBuf buf) {
+        buf.writeInt(x);
+        buf.writeInt(y);
+        buf.writeInt(z);
+    }
+
+    public Pos(int x, int y, int z) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+    }
+
+    public Pos(BlockPos pos) {
+        x = pos.getX();
+        y = pos.getY();
+        z = pos.getZ();
+    }
+
+    public BlockPos pos() {
+        return new BlockPos(x, y, z);
+    }
+}

src/main/java/com/minelittlepony/unicopia/client/KeyBindingsHandler.java

@@ -1,10 +1,16 @@
 package com.minelittlepony.unicopia.client;
 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
 import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
 import java.util.Set;
 
-import com.minelittlepony.unicopia.KeyBind;
 import com.minelittlepony.unicopia.ability.Abilities;
+import com.minelittlepony.unicopia.ability.Ability;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.player.Pony;
 
 import net.fabricmc.fabric.api.client.keybinding.FabricKeyBinding;
@@ -15,23 +21,31 @@ import net.minecraft.client.util.InputUtil;
 import net.minecraft.util.Identifier;
 
 class KeyBindingsHandler {
-    private final MinecraftClient client = MinecraftClient.getInstance();
+    private final String KEY_CATEGORY = "unicopia.category.name";
+
+    private final Map<KeyBinding, List<Ability<? extends Hit>>> keyPools = new HashMap<>();
 
     private final Set<KeyBinding> bindings = new HashSet<>();
-    private final Set<KeyBinding> removed = new HashSet<>();
 
     private final Set<KeyBinding> pressed = new HashSet<>();
 
-    public void addKeybind(KeyBind p) {
-        KeyBindingRegistry.INSTANCE.addCategory(p.getKeyCategory());
+    private Collection<Ability<?>> getKeyCodePool(KeyBinding keyCode) {
+        return keyPools.computeIfAbsent(keyCode, i -> new ArrayList<>());
+    }
 
-        FabricKeyBinding b = FabricKeyBinding.Builder.create(new Identifier("unicopia", p.getKeyName()), InputUtil.Type.KEYSYM, p.getKeyCode(), p.getKeyCategory()).build();
+    public void addKeybind(Ability<?> p) {
+        KeyBindingRegistry.INSTANCE.addCategory(KEY_CATEGORY);
+
+        Identifier id = Abilities.REGISTRY.getId(p);
+        int code = Abilities.KEYS_CODES.get(id);
+
+        FabricKeyBinding b = FabricKeyBinding.Builder.create(id, InputUtil.Type.KEYSYM, code, KEY_CATEGORY).build();
         KeyBindingRegistry.INSTANCE.register(b);
-
+        getKeyCodePool(b).add(p);
         bindings.add(b);
     }
 
-    public void onKeyInput() {
+    public void tick(MinecraftClient client) {
         if (client.currentScreen != null
             || client.player == null) {
             return;
@@ -42,22 +56,15 @@ class KeyBindingsHandler {
             if (i.isPressed()) {
 
                 if (pressed.add(i)) {
-                    if (!Abilities.getInstance().hasRegisteredPower(i.getDefaultKeyCode().getKeyCode())) {
-                        removed.add(i);
-                        System.out.println("Error: Keybinding(" + i.getLocalizedName() + ") does not have a registered pony power. Keybinding will be removed from event.");
-                    } else {
-                        Abilities.getInstance()
-                            .getCapablePowerFromKey(i.getDefaultKeyCode().getKeyCode(), iplayer.getSpecies())
-                            .ifPresent(iplayer.getAbilities()::tryUseAbility);
-                    }
+                    getKeyCodePool(i)
+                        .stream()
+                        .filter(power -> power.canUse(iplayer.getSpecies()))
+                        .findFirst()
+                        .ifPresent(iplayer.getAbilities()::tryUseAbility);
                 }
             } else if (pressed.remove(i)) {
                 iplayer.getAbilities().tryClearAbility();
             }
         }
-
-        bindings.removeAll(removed);
-        pressed.removeAll(removed);
-        removed.clear();
     }
 }

src/main/java/com/minelittlepony/unicopia/client/UnicopiaClient.java

@@ -45,7 +45,7 @@ public class UnicopiaClient implements ClientModInitializer {
         URenderers.bootstrap();
 
         ClientTickCallback.EVENT.register(this::tick);
-        ClientReadyCallback.EVENT.register(client -> Abilities.getInstance().getValues().forEach(keyboard::addKeybind));
+        ClientReadyCallback.EVENT.register(client -> Abilities.REGISTRY.stream().forEach(keyboard::addKeybind));
 
         DefaultTexturesRegistry.getDefaultTextures().add(new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX, SpellbookResultSlot.EMPTY_GEM_SLOT));
 
@@ -74,7 +74,7 @@ public class UnicopiaClient implements ClientModInitializer {
             }
         }
 
-        keyboard.onKeyInput();
+        keyboard.tick(client);
     }
 
     private static int getLeavesColor(BlockState state, @Nullable BlockRenderView world, @Nullable BlockPos pos, int tint) {

src/main/java/com/minelittlepony/unicopia/entity/player/PlayerImpl.java

@@ -4,7 +4,7 @@ import javax.annotation.Nullable;
 
 import com.minelittlepony.unicopia.Race;
 import com.minelittlepony.unicopia.UTags;
-import com.minelittlepony.unicopia.ability.AbilityReceiver;
+import com.minelittlepony.unicopia.ability.AbilityDispatcher;
 import com.minelittlepony.unicopia.enchanting.PageOwner;
 import com.minelittlepony.unicopia.entity.FlightControl;
 import com.minelittlepony.unicopia.entity.Trap;
@@ -54,7 +54,7 @@ public class PlayerImpl implements Pony {
 
     private final PlayerPageStats pageStates = new PlayerPageStats();
 
-    private final AbilityDelegate powers = new AbilityDelegate(this);
+    private final AbilityDispatcher powers = new AbilityDispatcher(this);
 
     private final GravityDelegate gravity = new GravityDelegate(this);
 
@@ -183,7 +183,7 @@ public class PlayerImpl implements Pony {
     }
 
     @Override
-    public AbilityReceiver getAbilities() {
+    public AbilityDispatcher getAbilities() {
         return powers;
     }
 

src/main/java/com/minelittlepony/unicopia/entity/player/Pony.java

@@ -3,7 +3,7 @@ package com.minelittlepony.unicopia.entity.player;
 import javax.annotation.Nullable;
 
 import com.minelittlepony.unicopia.InteractionManager;
-import com.minelittlepony.unicopia.ability.AbilityReceiver;
+import com.minelittlepony.unicopia.ability.AbilityDispatcher;
 import com.minelittlepony.unicopia.enchanting.PageOwner;
 import com.minelittlepony.unicopia.entity.FlightControl;
 import com.minelittlepony.unicopia.entity.Ponylike;
@@ -30,7 +30,7 @@ public interface Pony extends Caster<PlayerEntity>, RaceContainer<PlayerEntity>,
     /**
      * Gets the player's magical abilities delegate responsible for all spell casting and persisting/updating.
      */
-    AbilityReceiver getAbilities();
+    AbilityDispatcher getAbilities();
 
     /**
      * Gets the gravity delegate responsible for updating flight states

src/main/java/com/minelittlepony/unicopia/network/Channel.java

@@ -12,7 +12,7 @@ import net.minecraft.util.PacketByteBuf;
 
 public interface Channel {
 
-    SPacketType<MsgPlayerAbility> PLAYER_ABILITY = clientToServer(new Identifier("unicopia", "player_ability"), MsgPlayerAbility::new);
+    SPacketType<MsgPlayerAbility<?>> PLAYER_ABILITY = clientToServer(new Identifier("unicopia", "player_ability"), MsgPlayerAbility::new);
 
     SPacketType<MsgRequestCapabilities> REQUEST_CAPABILITIES = clientToServer(new Identifier("unicopia", "request_capabilities"), MsgRequestCapabilities::new);
     CPacketType<MsgPlayerCapabilities> PLAYER_CAPABILITIES = serverToClient(new Identifier("unicopia", "player_capabilities"), MsgPlayerCapabilities::new);

src/main/java/com/minelittlepony/unicopia/network/MsgPlayerAbility.java

@@ -1,53 +1,44 @@
 package com.minelittlepony.unicopia.network;
 
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
 import com.minelittlepony.unicopia.ability.Ability;
+import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.ability.Abilities;
 import com.minelittlepony.unicopia.entity.player.Pony;
 
 import net.fabricmc.fabric.api.network.PacketContext;
+import net.minecraft.util.Identifier;
 import net.minecraft.util.PacketByteBuf;
 
-public class MsgPlayerAbility implements Channel.Packet {
+public class MsgPlayerAbility<T extends Hit> implements Channel.Packet {
 
-    private static final Gson gson = new GsonBuilder()
-            .excludeFieldsWithoutExposeAnnotation()
-            .create();
+    private final Ability<T> power;
 
-    private final String powerIdentifier;
+    private final T data;
 
-    private final String abilityJson;
-
-    MsgPlayerAbility(Ability<?> power, Ability.IData data) {
-        powerIdentifier = power.getKeyName();
-        abilityJson = gson.toJson(data, power.getPackageType());
+    @SuppressWarnings("unchecked")
+    MsgPlayerAbility(PacketByteBuf buffer) {
+        power = (Ability<T>) Abilities.REGISTRY.get(new Identifier(buffer.readString()));
+        data = power.getSerializer().fromBuffer(buffer);
     }
 
-    public MsgPlayerAbility(PacketByteBuf buffer) {
-        powerIdentifier = buffer.readString();
-        abilityJson = buffer.readString();
+    public MsgPlayerAbility(Ability<T> power, T data) {
+        this.power = power;
+        this.data = data;
     }
 
-    private <T extends Ability.IData> void apply(Ability<T> power, PacketContext context) {
+    @Override
+    public void toBuffer(PacketByteBuf buffer) {
+        buffer.writeString(Abilities.REGISTRY.getId(power).toString());
+        data.toBuffer(buffer);
+    }
+
+    @Override
+    public void handle(PacketContext context) {
         Pony player = Pony.of(context.getPlayer());
         if (player == null) {
             return;
         }
 
-        T data = gson.fromJson(abilityJson, power.getPackageType());
-
         power.apply(player, data);
     }
-
-    @Override
-    public void toBuffer(PacketByteBuf buffer) {
-        buffer.writeString(powerIdentifier);
-        buffer.writeString(abilityJson);
-    }
-
-    @Override
-    public void handle(PacketContext context) {
-        Abilities.getInstance().getPowerFromName(powerIdentifier).ifPresent(power -> apply(power, context));
-    }
 }