using UnityEngine;
using System.Collections;

public enum AiParallelPolicy {
    Any,
    All
}

public class AiParallel : AiComposite {
    public AiParallelPolicy successPolicy = AiParallelPolicy.Any;
    public AiParallelPolicy failurePolicy = AiParallelPolicy.All;

    protected override BehaviorStatus OnExecute(AiBlackboard blackboard) {
        int failCount = 0;
        int successCount = 0;
        foreach (var behavior in children) {
            //if (behavior.Running) {
                behavior.Tick(blackboard);
            //}

            if (behavior.State == BehaviorStatus.Success) {
                ++successCount;
                if (successPolicy == AiParallelPolicy.Any) {
                    return BehaviorStatus.Success;
                }
            }
            else if (behavior.State == BehaviorStatus.Fail) {
                ++failCount;
                if (failurePolicy == AiParallelPolicy.Any) {
                    return BehaviorStatus.Fail;
                }
            }
        }

        if (failurePolicy == AiParallelPolicy.All && failCount == children.Length) {
            return BehaviorStatus.Fail;
        }

        if (successPolicy == AiParallelPolicy.All && successCount == children.Length) {
            return BehaviorStatus.Fail;
        }

        return BehaviorStatus.Running;
    }
}