cpBody *physics_arbiter_get_other(cpBody *self, cpArbiter *arbiter) {
cpBody *a, *b;
cpArbiterGetBodies(arbiter, &a, &b);
if (self == a) {
return b;
} else {
return a;
}
}
void cArbiter::GetBodies( cBody ** a, cBody ** b) {
cpBody * tA;
cpBody * tB;
cpArbiterGetBodies( mArbiter, &tA, &tB );
if ( NULL != tA )
*a = reinterpret_cast<cBody*>( tA->data );
else
*a = NULL;
if ( NULL != tB )
*b = reinterpret_cast<cBody*>( tB->data );
else
*b = NULL;
}
static void _add_collision(cpBody *body, cpArbiter *arbiter, void *collisions)
{
cpBody *ba, *bb;
Collision *col;
/* get in right order */
cpArbiterGetBodies(arbiter, &ba, &bb);
if (bb == body)
{
ba = body;
bb = ba;
}
/* save collision */
col = array_add(collisions);
col->a = cpBodyGetUserData(ba);
col->b = cpBodyGetUserData(bb);
}
static World_CollisionInfo _collisionInfoForArbiter(cpArbiter *aArbiter)
{
cpBody *bodyA, *bodyB;
cpArbiterGetBodies(aArbiter, &bodyA, &bodyB);
WorldEntity_t *a = bodyA->data;
dynamo_assert(a != NULL, "Incomplete collision");
WorldEntity_t *b = bodyB->data;
dynamo_assert(b != NULL, "Incomplete collision");
cpContactPointSet cpPointSet = cpArbiterGetContactPointSet(aArbiter);
World_ContactPointSet pointSet = *(World_ContactPointSet *)&cpPointSet;
return (World_CollisionInfo) {
a, b,
cpArbiterIsFirstContact(aArbiter),
pointSet,
aArbiter
};
}
/*
* @return [Array<Chipmunk2d::Body>]
*/
static mrb_value
arbiter_bodies(mrb_state* mrb, mrb_value self)
{
cpArbiter* arbiter;
cpBody* body1;
cpBody* body2;
mrb_value argv[2] = { mrb_nil_value(), mrb_nil_value() };
mrb_cp_body_user_data* user_data;
arbiter = mrb_cp_get_arbiter_ptr(mrb, self);
cpArbiterGetBodies(arbiter, &body1, &body2);
user_data = (struct mrb_cp_body_user_data*)cpBodyGetUserData(body1);
if (user_data) {
argv[0] = user_data->body;
}
user_data = (struct mrb_cp_body_user_data*)cpBodyGetUserData(body2);
if (user_data) {
argv[1] = user_data->body;
}
return mrb_ary_new_from_values(mrb, 2, argv);
}
std::pair<Body*, Body*> Arbiter::getBodies() const
{
cpBody* a, * b;
cpArbiterGetBodies(_arbiter, &a, &b);
return std::make_pair((Body*)cpBodyGetUserData(a), (Body*)cpBodyGetUserData(b));
}
int modArbiterProcessB(INSTANCE * my, int * params){
cpBody * b,*c;
cpArbiterGetBodies((cpArbiter *)params[0], &b,&c);
return ((DataPointer)c->data)->father;
}
