public override bool OnUpdate(float inDeltaSeconds)
{
// Aquire target
Actor self = GameObject as Actor;
Vector2 selfPosition = self.Spatial.WorldPosition;
Vector2 selfForward = self.Spatial.WorldForward;
DebugRenderer.Instance.Triangle(selfPosition, selfPosition + RotateVector(selfForward, -perceptionFov) * perceptionDistance, selfPosition + RotateVector(selfForward, perceptionFov) * perceptionDistance, DebugRenderer.Alpha(System.Drawing.Color.Blue, 128), true);
IList <Actor> actors = LevelManager.Instance.FindGameObjects <Actor>();
Actor foundTarget = null;
float closestDistance = float.MaxValue;
foreach (Actor actor in actors)
{
if (actor == self)
{
// Skip self
continue;
}
Vector2 toOther = actor.Spatial.WorldPosition - selfPosition;
float dot = (float)toOther.Normalize().Dot(selfForward);
if (dot >= Math.Cos(perceptionFov))
{
// Within field-of-vision
float distance = (float)toOther.Length();
if (distance <= perceptionDistance)
{
// Within the perception range
if (distance < closestDistance)
{
closestDistance = distance;
foundTarget = actor;
}
}
}
}
if (self.Blackboard.Target != foundTarget)
{
// Target changed
new DebugObject(DebugObject, "Event", ReViewFeedObject.EDebugType.GenericItem).Log("New target '" + (foundTarget != null ? foundTarget.Name : "<none>") + "' aquired!").End();
self.Blackboard.Target = foundTarget;
}
return(true);
}