/// <summary>
/// Using list of registered pairs, removes any referencing given Collider.
/// Can be given null, which will remove any pairs containing a null.
/// </summary>
private void UnregisterColliderPairs(Collider theCol)
{
for (int i = _colliderPairs.Count - 1; i >= 0; i--)
{
if (!ColliderPairContainsCollider(_colliderPairs[i], theCol))
{
continue;
}
_colliderPairs.RemoveAt(i);
}
}
/// <summary>
/// Adds theCol to the list of registered colliders and collider pairs.
/// </summary>
public void RegisterCollider(Collider theCol)
{
if (theCol == null)
{
return;
}
if (_colliders.Contains(theCol))
{
return;
}
_colliders.Add(theCol);
RegisterColliderPairs(theCol);
}
/// <summary>
/// Removes all instances of theCol from the list of registered colliders and collider pairs.
/// </summary>
public void UnregisterCollider(Collider theCol)
{
if (!_colliders.Contains(theCol))
{
return;
}
for (int i = _colliders.Count - 1; i >= 0; i--)
{
if (_colliders[i] != theCol)
{
continue;
}
_colliders.RemoveAt(i);
}
UnregisterColliderPairs(theCol);
}
//TODO: This way of doing things is memory inefficient. High complexity.
/// <summary>
/// Using list of registered colliders, registers new pairs.
/// </summary>
public void RegisterColliderPairs(Collider theCol)
{
if (theCol == null)
{
return;
}
for (int i = 0; i < _colliders.Count; i++)
{
if (_colliders[i] == null)
{
continue;
}
if (_colliders[i] == theCol)
{
continue;
}
_colliderPairs.Add(new Pair <Collider, Collider> (theCol, _colliders[i]));
}
}
/// <summary>
/// Returns true if either Collider in the given pair matches the given Collider.
/// </summary>
private bool ColliderPairContainsCollider(Pair <Collider, Collider> thePair, Collider theCol)
{
return((theCol == thePair.v1) || (theCol == thePair.v2));
}