static void
bbQueryHelper(cpBB *bb, cpShape *shape, bbQueryContext *context)
{
if(
!(shape->group && context->group == shape->group) && (context->layers&shape->layers) &&
cpBBintersects(*bb, shape->bb)
){
context->func(shape, context->data);
}
}
static inline int
queryReject(cpShape *a, cpShape *b)
{
return
// BBoxes must overlap
!cpBBintersects(a->bb, b->bb)
// Don't collide shapes attached to the same body.
|| a->body == b->body
// Don't collide objects in the same non-zero group
|| (a->group && b->group && a->group == b->group)
// Don't collide objects that don't share at least on layer.
|| !(a->layers & b->layers);
}
static VALUE
rb_cpBBintersects(VALUE self, VALUE other)
{
int value = cpBBintersects(*BBGET(self), *BBGET(other));
return value ? Qtrue : Qfalse;
}
int bmx_cpbb_intersects(cpBB * bb, cpBB * other) {
return cpBBintersects(*bb, *other);
}
