void IPairHandlerParent.AddSolverUpdateable(SolverUpdateable addedItem)
{
manifoldConstraintGroup.Add(addedItem);
//If this is the first child solver item to be added, we need to add ourselves to our parent too.
if (manifoldConstraintGroup.SolverUpdateables.Count == 1)
{
if (Parent != null)
{
Parent.AddSolverUpdateable(manifoldConstraintGroup);
}
else if (NarrowPhase != null)
{
NarrowPhase.NotifyUpdateableAdded(manifoldConstraintGroup);
}
}
}
///<summary>
/// Updates the pair handler.
///</summary>
///<param name="dt">Timestep duration.</param>
public override void UpdateCollision(float dt)
{
//Cache some properties.
var a = CollidableA;
var b = CollidableB;
var triggerA = a.EventTriggerer;
var triggerB = b.EventTriggerer;
if (!suppressEvents)
{
triggerA.OnPairUpdated(b, this);
triggerB.OnPairUpdated(a, this);
}
ContactManifold.Update(dt);
if (ContactManifold.contacts.count > 0)
{
if (!suppressEvents)
{
triggerA.OnPairTouching(b, this);
triggerB.OnPairTouching(a, this);
}
if (previousContactCount == 0)
{
//New collision.
//Add a solver item.
if (Parent != null)
{
Parent.AddSolverUpdateable(ContactConstraint);
}
else if (NarrowPhase != null)
{
NarrowPhase.NotifyUpdateableAdded(ContactConstraint);
}
//And notify the pair members.
if (!suppressEvents)
{
triggerA.OnInitialCollisionDetected(b, this);
triggerB.OnInitialCollisionDetected(a, this);
}
}
}
else if (previousContactCount > 0)
{
//Just exited collision.
//Remove the solver item.
if (Parent != null)
{
Parent.RemoveSolverUpdateable(ContactConstraint);
}
else if (NarrowPhase != null)
{
NarrowPhase.NotifyUpdateableRemoved(ContactConstraint);
}
if (!suppressEvents)
{
triggerA.OnCollisionEnded(b, this);
triggerB.OnCollisionEnded(a, this);
}
}
previousContactCount = ContactManifold.contacts.count;
}
