Question

I’m creating sprites and adding it to scene in loop in random places. I just want to check if newly created Sprite will cause collision with one of existing ones. Is there any simple way to check it?

Answer 1

When you create a new sprite, add user data to it:

sprite.setUserData("sprite");

And then, after you created a positioned the sprite, before you add it iterate over the existing sprites:

int count = scene.getChildCount();
for(int i = 0; i < count; i++) {
    IEntity entity = scene.getChild(i);
    if(entity instanceof Sprite) {
        if(entity.getUserData().equals("sprite"))
            if(((Sprite)entity).collidesWith(newSprite))
                //Don't add the new sprite.
}

The user data can be anything you want, it doesn’t have to be a string.