Is there some way of collision different than pixel perfect and getGlobalBounds?

[MDK]

I mean, i dont need pixel perfect detection but this rectangle collision is a bit to little. I think very good option could be if i could exclude some rectangles from the main rectangle, and then check for collision. Like on my drawing below.

[dabbertorres]

If you're doing just circle-circle collision, the simplest method is:

• Get the difference vector between the centers of both circles
• Subtract the length (or length squared) of the difference vector by the radius (or squared radius) of both circles.
• Negative result is collision, positive result is no collision

[MDK]

It looks nice and easy. Thanks!

[Tigrou]

If both circles have same radius (as in your example) this is even simpler :

vector2f d = spriteA.position - spriteB.position;
float distance = sqrt(d.x * d.x + d.y * d.y);
bool collide = distance < (radius * 2.0f);

[Mario]

Drop the sqrt() and instead multiply your distance with itself. You'll have to do a multiplication, but that's far cheaper than getting the square root.

[MDK]

Your'e advices are great! Exactly what i need.