SPIGOT-4803: Fox related APIs

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

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftFox.java

@@ -1,5 +1,6 @@
 package org.bukkit.craftbukkit.entity;
 
+import com.google.common.base.Preconditions;
 import net.minecraft.server.EntityFox;
 import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.entity.EntityType;
@@ -25,4 +26,41 @@ public class CraftFox extends CraftAnimals implements Fox {
     public String toString() {
         return "CraftFox";
     }
+
+    @Override
+    public Type getFoxType() {
+        return Type.values()[getHandle().dV().ordinal()];
+    }
+
+    @Override
+    public void setFoxType(Type type) {
+        Preconditions.checkArgument(type != null, "type");
+
+        getHandle().a(EntityFox.Type.values()[type.ordinal()]);
+    }
+
+    @Override
+    public boolean isCrouching() {
+        return getHandle().ef();
+    }
+
+    @Override
+    public void setCrouching(boolean crouching) {
+        getHandle().t(crouching);
+    }
+
+    @Override
+    public boolean isSitting() {
+        return getHandle().dW();
+    }
+
+    @Override
+    public void setSitting(boolean sitting) {
+        getHandle().r(sitting);
+    }
+
+    @Override
+    public void setSleeping(boolean sleeping) {
+        getHandle().x(sleeping);
+    }
 }

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java

@@ -135,11 +135,6 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
         }
     }
 
-    @Override
-    public boolean isSleeping() {
-        return getHandle().isSleeping();
-    }
-
     @Override
     public int getSleepTicks() {
         return getHandle().sleepTicks;

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java

@@ -551,6 +551,11 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
         return getHandle().isRiptiding();
     }
 
+    @Override
+    public boolean isSleeping() {
+        return getHandle().isSleeping();
+    }
+
     @Override
     public AttributeInstance getAttribute(Attribute attribute) {
         return getHandle().craftAttributes.getAttribute(attribute);