#if GRAPH_DESIGNER
using Opsive.BehaviorDesigner.Runtime.Tasks;
using Opsive.BehaviorDesigner.Runtime.Tasks.Actions;
using BaseGames.Enemies;

namespace BaseGames.Enemies.AI
{
    /// <summary>
    /// BD Action：移向玩家。
    /// OnStart 从 EnemyBase.PlayerTransform 获取玩家引用（由 _onPlayerSpawned 事件缓存，
    /// 避免 FindWithTag 全场景扫描）。OnUpdate 每帧更新导航目标。
    /// </summary>
    [TaskName("Move To Player")]
    [TaskCategory("BaseGames/Enemy/Movement")]
    [TaskDescription("持续向玩家方向移动，失去视线或超出追踪距离返回 Failure")]
    public class BD_MoveToPlayer : Action
    {
        private EnemyBase _enemy;

        public override void OnAwake() => _enemy = GetComponent<EnemyBase>();

        public override void OnStart()
        {
            _enemy.SetAiPhase(AiPhase.Chase);
        }

        public override TaskStatus OnUpdate()
        {
            if (_enemy == null)                       return TaskStatus.Failure;
            if (_enemy.PlayerTransform == null)       return TaskStatus.Failure;

            _enemy.MoveTo(_enemy.PlayerTransform.position);
            _enemy.FacePlayer();
            return TaskStatus.Running;
        }

        public override void OnEnd()
        {
            _enemy?.StopMovement();
        }
    }
}
#endif