using UnityEngine;
using System.Collections;

public class AiSelector : AiComposite {

    private int _currentId = 0;

    protected override void OnBegin(AiBlackboard blackboard) {
        _currentId = 0;
    }

    protected override void OnEnd(AiBlackboard blackboard) {
        
    }

    protected override BehaviorStatus OnExecute(AiBlackboard blackboard) {
        if (children == null || children.Length == 0) {
            Debug.LogError("Broken behavior! No children!");
            return BehaviorStatus.Invalid;
        }

        while(_currentId < children.Length) {
            var current = children[_currentId];
            var result = current.Tick(blackboard);
            if (result != BehaviorStatus.Fail) {
                return result;
            }
            _currentId++;
        }
        return BehaviorStatus.Fail;
    }
}