Add methods to set and reset max health. Adds BUKKIT-266

src/main/java/org/bukkit/entity/Damageable.java

@@ -0,0 +1,59 @@
+package org.bukkit.entity;
+
+/**
+ * Represents an {@link Entity} that has health and can take damage.
+ */
+public interface Damageable extends Entity {
+    /**
+     * Deals the given amount of damage to this entity.
+     *
+     * @param amount Amount of damage to deal
+     */
+    void damage(int amount);
+
+    /**
+     * Deals the given amount of damage to this entity, from a specified entity.
+     *
+     * @param amount Amount of damage to deal
+     * @param source Entity which to attribute this damage from
+     */
+    void damage(int amount, Entity source);
+
+    /**
+     * Gets the entity's health from 0 to {@link #getMaxHealth()}, where 0 is dead.
+     *
+     * @return Health represented from 0 to max
+     */
+    int getHealth();
+
+    /**
+     * Sets the entity's health from 0 to {@link #getMaxHealth()}, where 0 is dead.
+     *
+     * @param health New health represented from 0 to max
+     * @throws IllegalArgumentException Thrown if the health is < 0 or > {@link #getMaxHealth()}
+     */
+    void setHealth(int health);
+
+    /**
+     * Gets the maximum health this entity has.
+     *
+     * @return Maximum health
+     */
+    int getMaxHealth();
+
+    /**
+     * Sets the maximum health this entity can have.
+     * <p />
+     * If the health of the entity is above the value provided it will be set to that value.
+     * <p />
+     * Note: An entity with a health bar ({@link Player}, {@link EnderDragon}, {@link Wither}, etc...} will have their bar scaled accordingly.
+     *
+     * @param health amount of health to set the maximum to
+     */
+    void setMaxHealth(int health);
+
+    /**
+     * Resets the max health to the original amount.
+     */
+    void resetMaxHealth();
+}

src/main/java/org/bukkit/entity/EnderDragonPart.java

@@ -3,6 +3,6 @@ package org.bukkit.entity;
 /**
  * Represents an ender dragon part
  */
-public interface EnderDragonPart extends ComplexEntityPart {
+public interface EnderDragonPart extends ComplexEntityPart, Damageable {
     public EnderDragon getParent();
 }

src/main/java/org/bukkit/entity/LivingEntity.java

@@ -13,30 +13,7 @@ import org.bukkit.potion.PotionEffectType;
 /**
  * Represents a living entity, such as a monster or player
  */
-public interface LivingEntity extends Entity {
+public interface LivingEntity extends Entity, Damageable {
-
-    /**
-     * Gets the entity's health from 0 to {@link #getMaxHealth()}, where 0 is dead
-     *
-     * @return Health represented from 0 to max
-     */
-    public int getHealth();
-
-    /**
-     * Sets the entity's health from 0 to {@link #getMaxHealth()}, where 0 is dead
-     *
-     * @param health New health represented from 0 to max
-     * @throws IllegalArgumentException Thrown if the health is < 0 or > max
-     */
-    public void setHealth(int health);
-
-    /**
-     * Gets the maximum health this entity may have
-     *
-     * @return Maximum health
-     */
-    public int getMaxHealth();
-
     /**
      * Gets the height of the entity's head above its Location
      *
@@ -152,21 +129,6 @@ public interface LivingEntity extends Entity {
      */
     public void setMaximumAir(int ticks);
 
-    /**
-     * Deals the given amount of damage to this entity
-     *
-     * @param amount Amount of damage to deal
-     */
-    public void damage(int amount);
-
-    /**
-     * Deals the given amount of damage to this entity, from a specified entity
-     *
-     * @param amount Amount of damage to deal
-     * @param source Entity which to attribute this damage from
-     */
-    public void damage(int amount, Entity source);
-
     /**
      * Returns the entities current maximum noDamageTicks
      * This is the time in ticks the entity will become unable to take