From 9ae5e459b437d7a51bfc48283cf5cd20e82989f9 Mon Sep 17 00:00:00 2001
From: David Saltares <david.saltares@gmail.com>
Date: Mon, 9 Nov 2015 09:29:37 +0000
Subject: [PATCH] Does not allocate memory inside
 Engine.updateFamilyMembership() #189

---
 ashley/src/com/badlogic/ashley/core/Engine.java | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/ashley/src/com/badlogic/ashley/core/Engine.java b/ashley/src/com/badlogic/ashley/core/Engine.java
index d9026160..82e38a94 100644
--- a/ashley/src/com/badlogic/ashley/core/Engine.java
+++ b/ashley/src/com/badlogic/ashley/core/Engine.java
@@ -68,6 +68,8 @@ public class Engine {
 	private ComponentOperationPool componentOperationsPool;
  	private Array<ComponentOperation> componentOperations;
  	private ComponentOperationHandler componentOperationHandler;
+ 	
+ 	private BitsPool bitsPool = new BitsPool();
 
 	public Engine(){
 		entities = new Array<Entity>(false, 16);
@@ -322,8 +324,8 @@ public void update(float deltaTime){
 	private void updateFamilyMembership (Entity entity, boolean removing) {
 		// Find families that the entity was added to/removed from, and fill
 		// the bitmasks with corresponding listener bits.
-		Bits addListenerBits = new Bits();
-		Bits removeListenerBits = new Bits();
+		Bits addListenerBits = bitsPool.obtain();
+		Bits removeListenerBits = bitsPool.obtain();
 
 		for (Family family : entityListenerMasks.keys()) {
 			final int familyIndex = family.getIndex();
@@ -359,6 +361,8 @@ private void updateFamilyMembership (Entity entity, boolean removing) {
 			((EntityListenerData)items[i]).listener.entityAdded(entity);
 		}
 
+		addListenerBits.clear();
+		removeListenerBits.clear();
 		entityListeners.end();
 		notifying = false;
 	}
@@ -556,4 +560,11 @@ protected EntityOperation newObject() {
 			return new EntityOperation();
 		}
 	}
+	
+	private static class BitsPool extends Pool<Bits> {
+		@Override
+		protected Bits newObject () {
+			return new Bits();
+		}
+	}
 }