How can I use an object pool for optimization in AndEngine?
- by coder_For_Life22
I have read up on a tutorial that allows you to reuse sprites that are re-added to the scene such as bullets from a gun or any other objects using an ObjectPool.
In my game i have a variation of sprites about 6 all together with different textures.
This is how the object pool is set up with its own class extending Java's GenericPool class
public class BulletPool extends GenericPool<BulletSprite> {
private TextureRegion mTextureRegion;
public BulletPool(TextureRegion pTextureRegion) {
if (pTextureRegion == null) {
// Need to be able to create a Sprite so the Pool needs to have a TextureRegion
throw new IllegalArgumentException("The texture region must not be NULL");
}
mTextureRegion = pTextureRegion;
}
/**
* Called when a Bullet is required but there isn't one in the pool
*/
@Override
protected BulletSprite onAllocatePoolItem() {
return new BulletSprite(mTextureRegion);
}
/**
* Called when a Bullet is sent to the pool
*/
@Override
protected void onHandleRecycleItem(final BulletSprite pBullet) {
pBullet.setIgnoreUpdate(true);
pBullet.setVisible(false);
}
/**
* Called just before a Bullet is returned to the caller, this is where you write your initialize code
* i.e. set location, rotation, etc.
*/
@Override
protected void onHandleObtainItem(final BulletSprite pBullet) {
pBullet.reset();
}
}
As you see here it takes a TextureRegion parameter. The only problem i am facing with this is that i need to have 6 different sprites recycled and reused in the ObjectPool. This ObjectPool is set up to only use one TextureRegion.
Any idea's or suggestions on how to do this?
