Collisions help(PLEASE!!! IT'S NOT HARD!!!)

[SyntaxBubble]

I am starting on Windows game programming and I am making a simple Pong game. I have it to detect collisions with the window. My problem is, how would I detect a collision with a child window(I am using buttons [CreateWindow("button"), etc]). How would I detect the ball BMP colliding with a button?

[zen]

You can get the window coords with GetWindowRect(), and then check if the ball's bmp coords enters them. If you just want a paddle, why don't you just draw a rectangle?

[SyntaxBubble]

How do I create a rectangle?

[zen]

With the function Rectangle(hdc,left,top,right,bottom), or FillRect(hdc,&rect,hbrush);

[novacain]

Also use PtInRect() to find the collision.
Make sure all your cood's are in the same scale, screen cood's or the child window's client cood's.

For the rectangle you can use a bmp or create a 'static' control rather than the button.

MAKEPOINTS() macro may also help. Watch as POINT is int[2], POINTS is short int[2]. May need a type cast.

[Stealth]

Hey syntax bubble


I dont know how far u are with this thing, but I was wondering


Is it ok if I ask if I can help u out with this?


I mean I am no good with this C++ programming although I did start learning a while ago but got a little too busy, but I am very interested in making a pong clone and I see this as my chance to learn a whole lot more


So if this is ok with u would u liek to email me and let me know


[email protected]




Cheers



Stealth