private void OnTriggerStay(Collider other)
{
// If you don't plan on using degredation over distance, you can
// remove OnTriggerStay entirely and lighten the load.
dragger = GetComponent <FrameDragger>();
FrameDragReceiver receiver = other.GetComponent <FrameDragReceiver>();
if (receiver != null && receiver.isActiveAndEnabled)
{
if (degradeByDistance)
{
// A full dragMagnitude (1.0) means the receiver almost
// perfectly matches the dragger's rotation and velocity.
// The magnitude should be full if the receiver is within
// the dragEffectRadius of the dragEffectOrigin.position,
// and degrade the further the object is from that radius.
//
// There are many ways to do this, and all of them should
// be smarter than this.
float receiverDistance = Vector3.Distance(receiver.transform.position, dragEffectOrigin.position);
receiver.dragMagnitude = Mathf.Clamp01(dragEffectRadius / receiverDistance);
}
else
{
receiver.dragMagnitude = 1.0f;
}
}
}
private void OnTriggerExit(Collider other)
{
FrameDragReceiver receiver = other.GetComponent <FrameDragReceiver>();
// We have to track all dragged objects because trigger colliders
// detect collisions even when the trigger's object is disabled.
// If we don't track this, receivers of a disabled dragger retain
// modified velocities; they're effectively still dragged as if the
// object wasn't disabled. :( Thanks, Unity!
if (receiver != null && receiver.isActiveAndEnabled)
{
bool listContainsItem = dragged.Contains(receiver);
// Remove a receiver from the list of dragged objects only if
// it's not already on the list, and only on exit.
if (listContainsItem)
{
dragged.Remove(receiver);
}
}
}
