public override void Update(float deltaTime, uint tick)
{
//Loop through all entities that have a target component
for (int i = 0; i < _targetComponentArray.Length; i++)
{
//First, we need to make sure we're dealing with an active entity
if (!_entityManager.IsEntityActive(i))
{
return;
}
//Now we need to make sure this current entity "i" has a target. If not, then this system isn't interested
if (_targetComponentArray[i].IsActive)
{
//Make sure the target has a position component
if (_positionComponentArray[_targetComponentArray[i].TargetId].IsActive)
{
//This entity has a target, now we need to see if we're outside of attack range
float dist = _positionComponentArray[i].Position.DistanceTo(_positionComponentArray[_targetComponentArray[i].TargetId].Position);
if (dist > _combatStatsComponents[i].AttackRange)
{
//Well, our worst fears have come true, the target is out of range... Guess we need to get on the dusty trail
//First we need to check to see if we were previously pathing, and if so, should we be pathing to the same point
if (!_targetComponentArray[i].TargetPosition.SameAs(_positionComponentArray[_targetComponentArray[i].TargetId].Position) || _pathToTargetComponent[i].Path == null)
{
//Well, they're not in the same position, so we should probably update that
//TODO, we should be pathing to somewhere "near" the target based on some range information about this entity. This could easily be offloaded to a pathfinding manager.
_pathToTargetComponent[i].Path = _pathfindingManager.GetPath(_positionComponentArray[i], _positionComponentArray[_targetComponentArray[i].TargetId]);
_pathToTargetComponent[i].CurrentPathSegmentIndex = 0;
//Since we're setting a path to where the target currently is, we need to rememer where the target currently is
_targetComponentArray[i].TargetPosition.Set(_positionComponentArray[_targetComponentArray[i].TargetId].Position);
_logger.Log(string.Format("Updated path for Entity {0} to Target {1} X:{2} Y:{3} Z:{4}", i, _targetComponentArray[i].TargetId,
_positionComponentArray[_targetComponentArray[i].TargetId].Position.X,
_positionComponentArray[_targetComponentArray[i].TargetId].Position.Y,
_positionComponentArray[_targetComponentArray[i].TargetId].Position.Z));
_pathToTargetComponent[i].IsActive = true;
}
}
}
}
}
}
// Called from the simulation thread
public void SimulationUpdate(IMap map)
{
if (map == default)
{
throw new ArgumentNullException(nameof(map));
}
foreach (Actor actor in _actors)
{
actor.SimulationUpdate();
if (actor.Errand == Errand.WaitingToPath)
{
ActivityStep?step = actor.GetActivityStep();
if (step == default)
{
throw new InvalidOperationException("SimulationUpdate: Errand waiting to path with no ActivityStep.");
}
ref MapCell target = ref map.GetCell(step.Column, step.Row);
ref MapCell source = ref map.GetCell(actor.Column, actor.Row);
_pathfindingManager.GetPath(map, ref source, ref target, actor.Locomotion, actor, Actor.MoveContext);
}
