Added CREATURE_SPAWN event

By: ss2man44 <frigids@gmail.com>

paper-api/src/main/java/org/bukkit/event/entity/CreatureSpawnEvent.java

@@ -0,0 +1,66 @@
+package org.bukkit.event.entity;
+
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.MobType;
+import org.bukkit.Location;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+
+/**
+ * Stores data for damage events
+ */
+public class CreatureSpawnEvent extends EntityEvent implements Cancellable {
+
+    private Location location;
+    private boolean canceled;
+    private MobType mobtype;
+
+    public CreatureSpawnEvent(Entity spawnee, MobType mobtype, Location loc) {
+        super(Event.Type.CREATURE_SPAWN, spawnee);
+        this.mobtype = mobtype;
+        this.location = loc;
+    }
+
+    protected CreatureSpawnEvent(Event.Type type, Entity spawnee, MobType mobtype, Location loc) {
+        super(type, spawnee);
+        this.mobtype = mobtype;
+        this.location = loc;
+    }
+
+    /**
+     * Gets the cancellation state of this event. A canceled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @return true if this event is canceled
+     */
+    public boolean isCancelled() {
+        return canceled;
+    }
+
+    /**
+     * Sets the cancellation state of this event. A canceled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @param cancel true if you wish to cancel this event
+     */
+    public void setCancelled(boolean cancel) {
+        canceled = cancel;
+    }
+
+    /**
+     * Gets the location at which the creature is spawning.
+     * @return The location at which the creature is spawning
+     */
+    public Location getLocation() {
+        return location;
+    }
+
+    /**
+     * Gets the type of creature being spawned.
+     *
+     * @return A CreatureType value detailing the type of creature being spawned
+     */
+    public MobType getMobType() {
+        return mobtype;
+    }
+}

paper-api/src/main/java/org/bukkit/event/entity/EntityListener.java

@@ -9,6 +9,9 @@ public class EntityListener implements Listener {
     public EntityListener() {
     }
 
+    public void onCreatureSpawn(CreatureSpawnEvent event) {
+    }
+
     public void onEntityDamageByBlock(EntityDamageByBlockEvent event) {
     }
 

paper-api/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java

@@ -358,6 +358,11 @@ public final class JavaPluginLoader implements PluginLoader {
                     ((EntityListener)listener).onEntityTarget( (EntityTargetEvent)event );
                 }
             };
+        case CREATURE_SPAWN:
+            return new EventExecutor() { public void execute( Listener listener, Event event ) {
+                    ((EntityListener)listener).onCreatureSpawn( (CreatureSpawnEvent)event );
+                }
+            };
 
         // Vehicle Events
         case VEHICLE_CREATE: