/// <summary>
/// Attachs child colliders to a parent transform. Searches all children for "childCollider" component
/// and then sets (passed) delegate funcitons. Returns count of child colliders set.
/// Unity 4.0 has problems with namespaces + optional parameters so all parameters are necessary.
/// </summary>
private static int AttachChildColliders(Transform parent,
OnTriggerEnterDelegate triggerEnterDelegate,
OnTriggerStayDelegate triggerStayDelegate,
OnCollisionEnterDelegate collisionEnterDelegate,
OnCollisionStayDelegate collisionStayDelegate)
{
int childCount = 0;
if(parent == null) Debug.LogError("Parent transform missing in AttachChildColliders");
// look gof all children with colliders...
Collider[] colliders = parent.gameObject.GetComponentsInChildren<Collider>();
foreach(Collider collider in colliders)
{
// don't add to parent.
if(collider != parent.GetComponent<Collider>())
{
GameObject go = collider.gameObject;
// add a child collider component to them if they don't have one already
ChildCollider childCollider = go.GetComponent<ChildCollider>() as ChildCollider;
if(childCollider == null)
{
childCollider = go.AddComponent(typeof(ChildCollider)) as ChildCollider;
//Debug.Assert(childCollider != null,"Failed to add child collider to " + go.name);
}
// setup lists.
childCollider.Init();
// attach delegate to child collider...
// To Do: Figure out a way to move this repeat code into subroutine...
//Debug.Assert(childCollider.m_triggerEnterDelegates != null);
if(triggerEnterDelegate != null)
childCollider.m_triggerEnterDelegates.Add(triggerEnterDelegate);
//Debug.Assert(childCollider.m_triggerStayDelegates != null);
if(triggerStayDelegate != null)
childCollider.m_triggerStayDelegates.Add(triggerStayDelegate);
//Debug.Assert(childCollider.m_collisionEnterDelegates != null);
if(collisionEnterDelegate != null)
childCollider.m_collisionEnterDelegates.Add(collisionEnterDelegate);
//Debug.Assert(childCollider.m_collisionStayDelegates != null);
if(collisionStayDelegate != null)
childCollider.m_collisionStayDelegates.Add(collisionStayDelegate);
childCount += 1;
}
}
return childCount;
}
public static int AttachChildStayDelegate(Transform parent, OnCollisionStayDelegate collisionStayDelegate)
{
return AttachChildColliders(parent, null, null, null, collisionStayDelegate);
}
public void RemoveFunctionFromCollisionStayDelegate(OnCollisionStayDelegate func)
{
onCollisionStayDelegate -= func;
}
public void ClearCollisionStayDelegate()
{
onCollisionStayDelegate = null;
}
//onCollisionStayDelegate functions
public void AssignFunctionToCollisionStayDelegate(OnCollisionStayDelegate func)
{
onCollisionStayDelegate += func;
}
