如何使两个对象在cocos 2d中发生碰撞？

Question

        if (CGRectIntersectsRect(projectileRect, targetRects))
        {
           NSLog(@"ha ha Collision detected");
        }

     CGRect projectileRect = [player boundingBox];
     CGRect targetRects = [anEnemy boundingBox];

This is the code i am using for collision.The problem is many time the collision get not checked.If it get checked the position of collision is bottom left or right.

PLease advise what to do or any sample of how to do collision.ALso i am not using box or chimpunk

Answer 1

Make sure to check if the object has passed through the object as well. Ray has some great tuts on all of this here