SPIGOT-4803: Fox related APIs

By: md_5 <git@md-5.net>

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

@@ -1,6 +1,53 @@
 package org.bukkit.entity;
 
+import org.jetbrains.annotations.NotNull;
+
 /**
  * What does the fox say?
  */
-public interface Fox extends Animals {}
+public interface Fox extends Animals, Sittable {
+
+    /**
+     * Gets the current type of this fox.
+     *
+     * @return Type of the fox.
+     */
+    @NotNull
+    public Type getFoxType();
+
+    /**
+     * Sets the current type of this fox.
+     *
+     * @param type New type of this fox.
+     */
+    public void setFoxType(@NotNull Type type);
+
+    /**
+     * Checks if this animal is crouching
+     *
+     * @return true if crouching
+     */
+    boolean isCrouching();
+
+    /**
+     * Sets if this animal is crouching.
+     *
+     * @param crouching true if crouching
+     */
+    void setCrouching(boolean crouching);
+
+    /**
+     * Sets if this animal is sleeping.
+     *
+     * @param sleeping true if sleeping
+     */
+    void setSleeping(boolean sleeping);
+
+    /**
+     * Represents the various different fox types there are.
+     */
+    public enum Type {
+        RED,
+        SNOW;
+    }
+}

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

@@ -223,13 +223,6 @@ public interface HumanEntity extends LivingEntity, AnimalTamer, InventoryHolder
      */
     public void setCooldown(@NotNull Material material, int ticks);
 
-    /**
-     * Returns whether this player is slumbering.
-     *
-     * @return slumber state
-     */
-    public boolean isSleeping();
-
     /**
      * Get the sleep ticks of the player. This value may be capped.
      *

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

@@ -432,6 +432,13 @@ public interface LivingEntity extends Attributable, Damageable, ProjectileSource
      */
     public boolean isRiptiding();
 
+    /**
+     * Returns whether this entity is slumbering.
+     *
+     * @return slumber state
+     */
+    public boolean isSleeping();
+
     /**
      * Sets whether an entity will have AI.
      *