/// <summary>
/// Cast a ray in the target direction and check if its at shooting distance.
/// </summary>
/// <param name="_controller">AIActor reference.</param>
/// <returns></returns>
protected bool IsTargetInShootRange(AIView _controller)
{
bool inRange = false;
ChaseData data = _controller.GetStateData <ChaseData>();
Vector3 startPosition = _controller.GetOwner.GetCenterOfBodyPosition;
Vector3 targetPosition = data.GetCurrentTarget.GetCenterOfBodyPosition;
Vector3 vectorToTarget = targetPosition - startPosition;
float viewDistance = _controller.GetAIData.GetViewRange;
// Raycast in the target direction to see if there is no obstacle.
Actor hitTarget = RayScan(startPosition, vectorToTarget.normalized, viewDistance, rayCastLayers);
if (data.GetCurrentTarget == hitTarget)
{
Vector3 directionToHit = hitTarget.GetCenterOfBodyPosition - startPosition;
inRange = directionToHit.sqrMagnitude <= _controller.GetAIData.GetShootRange * _controller.GetAIData.GetShootRange;
if (inRange)
{
OnTargetInShootRange args = new OnTargetInShootRange()
{
actor = data.GetOwner,
target = hitTarget
};
EventController.PushEvent(DecisionEvents.TARGET_IN_SHOOT_RANGE, args);
}
}
return(inRange);
}
public override bool Decide(AIView _controller)
{
bool lostTarget = false;
// If the target is not in sight check if the ai reached the chase time limit.
if (!base.Decide(_controller))
{
ChaseData data = _controller.GetStateData <ChaseData>();
lostTarget = HasLostTarget(data);
}
return(lostTarget);
}
private void ChaseTarget(AIView _controller)
{
if (_controller.GetAIData.GetNavigationComponent.isStopped)
{
_controller.GetAIData.GetNavigationComponent.isStopped = false;
}
ChaseData data = _controller.GetStateData <ChaseData>();
Vector3 targetPosition = data.GetCurrentTarget.transform.position;
OnActorCommandReceiveEventArgs args = new OnActorCommandReceiveEventArgs()
{
baseArgs = new OnActorEventEventArgs()
{
actor = _controller.GetOwner
},
command = ActorCommands.Move,
value = targetPosition
};
EventController.QueueEvent(ActorEvents.ACTOR_COMMAND_RECEIVE, args);
}
private bool HasLostTarget(ChaseData _data) => _data.GetCurrentChaseTime >= _data.GetMaxChaseTime;