private void buildBehaviorTree()
{
//Initialize pathfinding
_origin = (entity.position / Game1.TILE_SIZE).ToPoint();
_waypoints = _grid.search(new Point(_origin.X, _origin.Y), new Point(_origin.X + 5, _origin.Y));
BehaviorTreeBuilder <EnemyController> _behaviorTreeBuilder = BehaviorTreeBuilder <EnemyController> .begin(this);
_behaviorTreeBuilder.untilSuccess();
//Creates a method with input of EnemyController and output of TaskStatus
Func <EnemyController, TaskStatus> chasePlayer = delegate(EnemyController context) {
if (target == null)
{
return(TaskStatus.Failure);
}
Point currentNode = (entity.position / Game1.TILE_SIZE).ToPoint();
Point targetNode = (target.position / Game1.TILE_SIZE).ToPoint();
_waypoints = _grid.search(currentNode, targetNode);
_currentWaypointIndex = 0;
//Check to see if path exists
if (_waypoints == null)
{
return(TaskStatus.Failure);
}
return(TaskStatus.Running);
};
_behaviorTreeBuilder.action(chasePlayer);
_behaviorTree = _behaviorTreeBuilder.build();
}