private ILaserPointerTarget FindHitTarget()
{
ILaserPointerTarget newTarget = null;
Ray = new Ray(transform.position, transform.forward);
int uiLayerMask = LayerMask.GetMask("_AnnotationUI");
RaycastHit uiHit = new RaycastHit();
var hasUIHit = (Physics.Raycast(Ray, out uiHit, 1000, uiLayerMask));
int notUILayerMask = ~uiLayerMask;
RaycastHit physicsHit = new RaycastHit();
var hasPhysicsHit = (Physics.Raycast(Ray, out physicsHit, 1000, notUILayerMask));
var nodeHit = (_nodeSelector != null) ? _nodeSelector.FindHit(Ray) : null;
var hasNodeHit = (nodeHit != null);
// var hitGizmo = physicsHit.collider.GetComponent<IClickableLaserPointerTarget>();
// Physics ray wins
if (hasUIHit)
{
LastHitPoint = uiHit.point;
_lastHitDistance = uiHit.distance;
var hitCollider = uiHit.collider;
var newTargetInterface = hitCollider.attachedRigidbody
? hitCollider.attachedRigidbody.GetComponent <ILaserPointerTarget>()
: hitCollider.gameObject.GetComponent <ILaserPointerTarget>();
newTarget = newTargetInterface as ILaserPointerTarget;
}
else if (hasPhysicsHit && (!hasNodeHit || physicsHit.distance < nodeHit.HitDistance - 0.1f))
{
LastHitPoint = physicsHit.point;
_lastHitDistance = physicsHit.distance;
var hitCollider = physicsHit.collider;
var newTargetInterface = hitCollider.attachedRigidbody
? hitCollider.attachedRigidbody.GetComponent <ILaserPointerTarget>()
: hitCollider.gameObject.GetComponent <ILaserPointerTarget>();
newTarget = newTargetInterface as ILaserPointerTarget;
}
// NodeHit wins...
else if (hasNodeHit)
{
_nodeSelector.LastNodeHitByRay = nodeHit;
LastHitPoint = Ray.origin + Ray.direction * nodeHit.HitDistance;
_lastHitDistance = nodeHit.HitDistance;
newTarget = _nodeSelector as ILaserPointerTarget;
}
// Nothing hit
else
{
_lastHitDistance = 100;
LastHitPoint = Ray.direction * 100;
}
return(newTarget);
}
private void Update()
{
if (!_laserIsEnabled)
{
return;
}
ILaserPointerTarget newTarget = FindHitTarget();
SetNewHitTarget(newTarget);
SetLaserLength(_lastHitDistance);
_laserHitSphere.transform.position = LastHitPoint;
}
private void SetNewHitTarget(ILaserPointerTarget newTarget)
{
var targetIsSame = (newTarget == PointingAt || IsLockedAtTarget);
if (targetIsSame)
{
// Update position on Target
if (PointingAt != null)
{
PointingAt.PointerUpdate(this);
}
return;
}
if (Controller.ActiveState == InteractiveController.States.PointerCapturedOnClickable)
{
return;
}
// Exit old target
if (PointingAt != null && !PointingAt.Equals(null)) // Also checking with .Equals because ==Operator is not overridden from MonoBehaviour
{
PointingAt.PointerExit(this);
}
PointingAt = newTarget;
UpdateStyleIfTargetChanged();
if (NewTargetEnteredEvent != null)
{
NewTargetEnteredEvent(this, new PointingAtChangedEventArgs(PointingAt, newTarget));
}
if (newTarget != null)
{
newTarget.PointerEnter(this);
}
}
public PointingAtChangedEventArgs(ILaserPointerTarget oldTarget, ILaserPointerTarget newTarget)
{
OldTarget = oldTarget;
NewTarget = newTarget;
}
