Add aggressive mob API (#9838)

patches/api/Add-more-Zombie-API.patch

@@ -40,14 +40,18 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * Set if zombie has its arms raised
 +     *
 +     * @param raised True to raise arms
++     * @deprecated use {{@link #setAggressive(boolean)}}
 +     */
++    @Deprecated
 +    void setArmsRaised(boolean raised);
 +
 +    /**
 +     * Check if zombie has arms raised
 +     *
 +     * @return True if arms are raised
++     * @deprecated use {@link #isAggressive()}
 +     */
++    @Deprecated
 +    boolean isArmsRaised();
 +
 +    /**

patches/api/Left-handed-API.patch

@@ -10,8 +10,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +++ b/src/main/java/org/bukkit/entity/Mob.java
 @@ -0,0 +0,0 @@ public interface Mob extends LivingEntity, Lootable {
       */
-     @Nullable
+     void setAggressive(boolean aggressive);
-     public Sound getAmbientSound();
+     // Paper end
 +
 +    // Paper start
 +    /**

patches/api/Missing-Entity-API.patch

@@ -633,6 +633,49 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     */
 +    @org.jetbrains.annotations.Nullable
 +    Llama getCaravanTail();
++    // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/entity/Mob.java b/src/main/java/org/bukkit/entity/Mob.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/entity/Mob.java
++++ b/src/main/java/org/bukkit/entity/Mob.java
+@@ -0,0 +0,0 @@ public interface Mob extends LivingEntity, Lootable {
+      */
+     @Nullable
+     public Sound getAmbientSound();
++
++    // Paper start
++    /**
++     * Some mobs will raise their arm(s) when aggressive:
++     * <ul>
++     *     <li>{@link Drowned}</li>
++     *     <li>{@link Piglin}</li>
++     *     <li>{@link Skeleton}</li>
++     *     <li>{@link Zombie}</li>
++     *     <li>{@link ZombieVillager}</li>
++     *     <li>{@link Illusioner}</li>
++     *     <li>{@link Vindicator}</li>
++     *     <li>{@link Panda}</li>
++     *     <li>{@link Pillager}</li>
++     *     <li>{@link PiglinBrute}</li>
++     * </ul>
++     * <p>
++     * Note: This doesn't always show the actual aggressive state as
++     * set by {@link #setAggressive(boolean)}. {@link Panda}'s are always
++     * aggressive if their combined {@link Panda.Gene} is {@link Panda.Gene#AGGRESSIVE}.
++     *
++     * @return wether the mob is aggressive or not
++     */
++    boolean isAggressive();
++
++    /**
++     * Some mobs will raise their arm(s) when aggressive,
++     * see {@link #isAggressive()} for full list.
++     *
++     * @param aggressive wether the mob should be aggressive or not
++     * @see #isAggressive()
++     */
++    void setAggressive(boolean aggressive);
 +    // Paper end
  }
 diff --git a/src/main/java/org/bukkit/entity/MushroomCow.java b/src/main/java/org/bukkit/entity/MushroomCow.java

patches/api/RangedEntity-API.patch

@@ -32,13 +32,17 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * Sets that the Entity is "charging" up an attack, by raising its hands
 +     *
 +     * @param raiseHands Whether the entities hands are raised to charge attack
++     * @deprecated use {@link #isAggressive()}
 +     */
++    @Deprecated
 +    void setChargingAttack(boolean raiseHands);
 +
 +    /**
 +     * Alias to {@link LivingEntity#isHandRaised()}, if the entity is charging an attack
 +     * @return If entities hands are raised
++     * @deprecated use {@link #isHandRaised()}
 +     */
++    @Deprecated
 +    default boolean isChargingAttack() {
 +        return isHandRaised();
 +    }

patches/server/Add-Mob-Experience-reward-API.patch

@@ -9,7 +9,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
 @@ -0,0 +0,0 @@ public abstract class CraftMob extends CraftLivingEntity implements Mob {
-         getHandle().setLeftHanded(leftHanded);
+         this.getHandle().setAggressive(aggressive);
      }
      // Paper end
 +

patches/server/Left-handed-API.patch

@@ -23,4 +23,5 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        getHandle().setLeftHanded(leftHanded);
 +    }
      // Paper end
- }
+ 
+     // Paper start

patches/server/Missing-Entity-API.patch

@@ -837,6 +837,27 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    public void setPickupCooldown(int cooldown) {
 +        throw new UnsupportedOperationException("Hopper minecarts don't have cooldowns");
 +    }
++    // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
+@@ -0,0 +0,0 @@ public abstract class CraftMob extends CraftLivingEntity implements Mob {
+         return getHandle().getMaxHeadXRot();
+     }
+     // Paper end
++
++    // Paper start
++    @Override
++    public boolean isAggressive() {
++        return this.getHandle().isAggressive();
++    }
++
++    @Override
++    public void setAggressive(boolean aggressive) {
++        this.getHandle().setAggressive(aggressive);
++    }
 +    // Paper end
  }
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMushroomCow.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMushroomCow.java