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Help => Graphics => Topic started by: dotty on February 15, 2012, 08:19:11 pm

Title: checking circular collisions
Post by: dotty on February 15, 2012, 08:19:11 pm

Hello, I know I can use IntRect() which have some decent methods for working out collisions between them. How would I go about doing this with circular shapes?

Title: checking circular collisions
Post by: Laurent on February 15, 2012, 08:45:56 pm

Collision between circles is the simplest thing that you can do. Check if the distance between the centers is less than the sum of both radiuses, and that's it.

Title: checking circular collisions
Post by: Contadotempo on February 15, 2012, 10:20:20 pm

Something like:

Code: [Select]

if((x1 - x2)^2 + (y1 - y2)^2 < (radius1 + radius2)^2)
     youhavecollision();

Where x and y  is the position of the center of each circle.
That's pseudo-code of course but I think you can get the idea.  :P