public bool CallWildcardBeginB(cpSpace space)
{
cpCollisionHandler handler = this.handlerB;
this.swapped = !this.swapped;
bool retval = handler.beginFunc(this, space, handler.userData);
this.swapped = !this.swapped;
return(retval);
}
public bool CallWildcardBeginA(cpSpace space)
{
cpCollisionHandler handler = this.handlerA;
return(handler.beginFunc(this, space, handler.userData));
}
public ulong CollideShapes(cpShape a, cpShape b, ulong id)
{
// It would be nicer to use .bind() or something, but this is faster.
//return new Action<object, object>((obj1, obj2) =>
//{// Reject any of the simple cases
if (QueryReject(a, b))
{
return(id);
}
//contactsBuffer.Clear();
List <cpContact> contacts = new List <cpContact>();
// Narrow-phase collision detection.
//int numContacts = cpCollideShapes(a, b, contacts);
cpCollisionInfo info = cpCollision.cpCollide(a, b, id, ref contacts);
if (info.count == 0)
{
return(info.id); // Shapes are not colliding.
}
// Get an arbiter from space.arbiterSet for the two shapes.
// This is where the persistant contact magic comes from.
var arbHash = cp.CP_HASH_PAIR(info.a.hashid, info.b.hashid);
cpArbiter arb;
if (!cachedArbiters.TryGetValue(arbHash, out arb))
{
arb = new cpArbiter(a, b);
cachedArbiters.Add(arbHash, arb);
}
arb.Update(info, this);
cpCollisionHandler handler = arb.handler; //LookupHandler(a.type, b.type, defaultHandler);
// Call the begin function first if it's the first step
if (arb.state == cpArbiterState.FirstCollision && !handler.beginFunc(arb, this, null))
{
arb.Ignore(); // permanently ignore the collision until separation
}
if (
// Ignore the arbiter if it has been flagged
(arb.state != cpArbiterState.Ignore) &&
// Call preSolve
handler.preSolveFunc(arb, this, handler.userData) &&
!(a.sensor || b.sensor) &&
// Process, but don't add collisions for sensors.
!(a.body.m == cp.Infinity && b.body.m == cp.Infinity)
)
{
this.arbiters.Add(arb);
}
else
{
//cpSpacePopContacts(space, numContacts);
arb.contacts.Clear();
// Normally arbiters are set as used after calling the post-solve callback.
// However, post-solve callbacks are not called for sensors or arbiters rejected from pre-solve.
if (arb.state != cpArbiterState.Ignore)
{
arb.state = cpArbiterState.Normal;
}
}
// Time stamp the arbiter so we know it was used recently.
arb.stamp = this.stamp;
// });
return(info.id);
}