Add API for getting and setting Skeleton and Zombie types. Fixes BUKKIT-2818

By: James Clarke <jamesrtclarke@me.com>

paper-api/src/main/java/org/bukkit/entity/Skeleton.java

@@ -3,4 +3,58 @@ package org.bukkit.entity;
 /**
  * Represents a Skeleton.
  */
-public interface Skeleton extends Monster {}
+public interface Skeleton extends Monster {
+    /**
+     * Gets the current type of this skeleton.
+     *
+     * @return Current type
+     */
+    public SkeletonType getSkeletonType();
+
+    /**
+     * Sets the new type of this skeleton.
+     *
+     * @param type New type
+     */
+    public void setSkeletonType(SkeletonType type);
+
+    /*
+     * Represents the various different Skeleton types.
+     */
+    public enum SkeletonType {
+        NORMAL(0),
+        WITHER(1);
+
+        private static final SkeletonType[] types = new SkeletonType[SkeletonType.values().length];
+        private final int id;
+
+        static {
+            for (SkeletonType type : values()) {
+                types[type.getId()] = type;
+            }
+        }
+
+        private SkeletonType(int id) {
+            this.id = id;
+        }
+
+        /**
+         * Gets the ID of this skeleton type.
+         *
+         * @return Skeleton type ID
+         */
+        public int getId() {
+            return id;
+        }
+
+        /**
+         * Gets a skeleton type by its ID.
+         *
+         * @param id ID of the skeleton type to get.
+         * @return Resulting skeleton type, or null if not found.
+         */
+        public static SkeletonType getType(int id) {
+            return (id >= types.length) ? null : types[id];
+        }
+    }
+}

paper-api/src/main/java/org/bukkit/entity/Zombie.java

@@ -3,4 +3,32 @@ package org.bukkit.entity;
 /**
  * Represents a Zombie.
  */
-public interface Zombie extends Monster {}
+public interface Zombie extends Monster {
+    /**
+     * Gets whether the zombie is a baby
+     *
+     * @return Whether the zombie is a baby
+     */
+    public boolean isBaby();
+
+    /**
+     * Sets whether the zombie is a baby
+     *
+     * @param flag Whether the zombie is a baby
+     */
+    public void setBaby(boolean flag);
+
+    /**
+     * Gets whether the zombie is a villager
+     *
+     * @return Whether the zombie is a villager
+     */
+    public boolean isVillager();
+
+    /**
+     * Sets whether the zombie is a villager
+     *
+     * @param flag Whether the zombie is a villager
+     */
+    public void setVillager(boolean flag);
+}