public override List <InteractableCollisionInfo> GetNextIntersectingObjects()
{
if (!_initialized)
{
return(_currentIntersectingObjects);
}
// if we already have focused on something, keep it until the angle between
// our forward direction and object vector becomes too large
if (_currInteractableCastedAgainst != null &&
HasRayReleasedInteractable(_currInteractableCastedAgainst))
{
// reset state
_currInteractableCastedAgainst = null;
}
// Find target interactable if we haven't found one before.
if (_currInteractableCastedAgainst == null)
{
_currentIntersectingObjects.Clear();
_currInteractableCastedAgainst = FindTargetInteractable();
// If we have found one, query collision zones.
if (_currInteractableCastedAgainst != null)
{
var targetHitPoint = _currInteractableCastedAgainst.transform.position;
int numHits = Physics.OverlapSphereNonAlloc(targetHitPoint, COLLIDER_RADIUS, _collidersOverlapped);
// find all colliders encountered; focus only on ones belonging to target element
for (int i = 0; i < numHits; i++)
{
Collider colliderHit = _collidersOverlapped[i];
var colliderZone = colliderHit.GetComponent <ColliderZone>();
if (colliderZone == null)
{
continue;
}
Interactable interactableComponent = colliderZone.ParentInteractable;
if (interactableComponent == null || interactableComponent
!= _currInteractableCastedAgainst)
{
continue;
}
InteractableCollisionInfo collisionInfo = new InteractableCollisionInfo(colliderZone,
colliderZone.CollisionDepth, this);
_currentIntersectingObjects.Add(collisionInfo);
}
// clear intersecting object if no collisions were found
if (_currentIntersectingObjects.Count == 0)
{
_currInteractableCastedAgainst = null;
}
}
}
return(_currentIntersectingObjects);
}
/// <summary>
/// For each intersecting interactable, update meta data to indicate deepest collision only.
/// </summary>
public virtual void UpdateCurrentCollisionsBasedOnDepth()
{
_currInteractableToCollisionInfos.Clear();
foreach (InteractableCollisionInfo interactableCollisionInfo in _currentIntersectingObjects)
{
var interactable = interactableCollisionInfo.InteractableCollider.ParentInteractable;
var depth = interactableCollisionInfo.CollisionDepth;
InteractableCollisionInfo collisionInfoFromMap = null;
if (!_currInteractableToCollisionInfos.TryGetValue(interactable, out collisionInfoFromMap))
{
_currInteractableToCollisionInfos[interactable] = interactableCollisionInfo;
}
else if (collisionInfoFromMap.CollisionDepth < depth)
{
collisionInfoFromMap.InteractableCollider = interactableCollisionInfo.InteractableCollider;
collisionInfoFromMap.CollisionDepth = depth;
}
}
}
/// <summary>
/// For each interactable, update meta data to indicate deepest collision only.
/// </summary>
/// <param name="allCollisions">All current collisions.</param>
/// <param name="interactableToCollisionInfo">Interactable->collision info map.</param>
private void UpdateInteractableDeepestCollisionMap(List<InteractableCollisionInfo> allCollisions,
Dictionary<Interactable, InteractableCollisionInfo> interactableToCollisionInfo)
{
interactableToCollisionInfo.Clear();
foreach (InteractableCollisionInfo interactableCollisionInfo in allCollisions)
{
var interactable = interactableCollisionInfo.InteractableCollider.ParentInteractable;
var depth = interactableCollisionInfo.CollisionDepth;
InteractableCollisionInfo collisionInfoFromMap = null;
if (!interactableToCollisionInfo.TryGetValue(interactable, out collisionInfoFromMap))
{
interactableToCollisionInfo[interactable] = interactableCollisionInfo;
}
else if (collisionInfoFromMap.CollisionDepth < depth)
{
collisionInfoFromMap.InteractableCollider = interactableCollisionInfo.InteractableCollider;
collisionInfoFromMap.CollisionDepth = depth;
}
}
}
