Problem: Modelling objects as rectangles leads to uncertainities?
Solution: SAT test.
See:

Wiki Link

External Link

Could you post how you solved it, please?

done. I find it really hard to dig page links from wiki if I don't know the right terminology....

Do you still want the thread deleted? It's not a problem to leave it here.

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10 PRINT "Bad Monkey ";
20 GOTO 10

Dunno. Lexus, what say?

Well, IMO, I always like having solutions stored permanently on forums and Q&As.

I know I'm insinuating myself into a two-person conversation in which I am not involved, but I tend to agree. If you have this problem, there is a very real likelihood that others have had (or will have) the same problem -- and may need just the answer provided in this thread. It would be a shame if they couldn't find the answer here because it was removed.

Quack, swallow your pride, and allow this thread to remain. And, if you wouldn't mind, please edit the title of this thread to something more descriptive with regard to your original question (something along the lines of "Testing whether rectangles overlap each other" or similar). (I could just do this myself, but I would rather allow the OP to do this himself.)

I know you may feel embarrassed that you asked a 'dumb' question -- but remember, not only is this question not 'dumb', the conversation stemming from you asking it in the first place may help someone down the road. What would be dumb would be if that person never got the answer he was looking for because someone else who asked the same question thought it was dumb.

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What most people don't understand about "enlightenment" is that it is not an end-goal; but where you find yourself just before taking a new "first step."

I kinda feel like you're rubbing salt on my wounds

I agree. It can be annoying when you're looking for something and find someone asking the same question, but the thread has no replies or resolution posted. It's even more frustrating when Goggle tells you that there was a thread for your answer, but it's gone when you follow the link.

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10 PRINT "Bad Monkey ";
20 GOTO 10

Oh yeah!
Feels gr8 when you know how stuff works.
Old school mathematics rock!

(1st post edited)

Not my intention; I just have a tendency to be a little too casually blunt.

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What most people don't understand about "enlightenment" is that it is not an end-goal; but where you find yourself just before taking a new "first step."

I have question regarding the SAT algorithm.

Wouldn't it be faster/better to loop over all the sides, check for intersection using old school line & circle equations instead projecting in on to a separating axis and checking for overlap?

Less code and easy for a newbie, imho. Well it wont work if either one is inside other. But still...

The parent shape class in Slick used this line intersection algorithm.