Colision with circle

[Vadim]

Hellow, I need some help with Colision's.
When I colision two object's with circle shape, my objects don't interact with each other, and don't call
function int begin(cpArbiter *arb, cpSpace *space, void *ignore), but when I change shape's of object's
with same property's each interaction work's well.
What do you think about it?

[slembcke]

You are probably filtering the collision by mistake.

A collision will not happen if:
shape_a.group != 0 && shape_a.group == shape_b.group
shape_a.layers & shape_b.layers == 0 (bitwise AND)
if your begin() or preSolve() callbacks return 0/false.

Make sure that you are returning a value from begin() and preSolve() or it will just return a random value.

[Vadim]

I have interaction, but when my circle object's interaction it doesn't call my function
begin() sometimes..........

[slembcke]

I have interaction, but when my circle object's interaction it doesn't call my function
begin() sometimes..........

Do you have the cpShape.collision_type type set up correctly?

[Vadim]

Yes, if i change shape's of object's from Circle to Poly all works well....