@Wjbender, funny solution. What I am wondering is though if the collision would be good enough. If I can do it as an almost sphere collision than that would be nice (a retangle block would be less precise on 2 sides when rotating). Maybe the NARROW flag.

@alibaba, yes that code was indeed the problem. But I need to compare the position relatively. Cause otherwise, if I e.g. do "my.tilt = 60;", the explosion's angle does not change. While I want it to rotate properly with the missile's angle. Its for a fps game.