How to generate an end screen when two images collide?

Question

how to generate an end screen when two images collide. I am making an app with a stickman you move with a very sensitive acceremeter. SO if it hits these spikes, (UIImages) it w

Answer 1

I'm sure you know the rect of the two images because you need to draw them so you can use

bool CGRectIntersectsRect (
   CGRect rect1,
   CGRect rect2
);

It returns YES if the two rects have a shared point