using System.Collections.Generic;
using Sirenix.OdinInspector;
using UnityEngine;

namespace Game.Component.Map
{
    public class MovePathGroup : MonoBehaviour
    {
        private List<Vector3>   _pathList;
        public  List<Transform> PathList;
        
#if UNITY_EDITOR
        
        private void OnDrawGizmos ()
        {
            if (PathList == null)
            {
                return;
            }
            //根据PathList绘制节点，并按照顺序连接线段
            for (int i = PathList.Count - 1; i >= 0 ; i--)
            {
                if (PathList[i] == null)
                {
                    PathList.RemoveAt (i);
                    continue;
                }
                //每个节点绘制一个园
                Gizmos.color = Color.red;
                Gizmos.DrawWireSphere (PathList[i].position, 0.1f);
                if (this.PathList.Count > 1)
                {
                    if (i < PathList.Count - 1)
                    {
                        Gizmos.color = Color.green;
                        Gizmos.DrawLine (PathList[i].position, PathList[i + 1].position);
                    }
                    else
                    {
                        Gizmos.color = Color.green;
                        Gizmos.DrawLine (PathList[i].position, PathList[0].position);
                    }
                }
            }

            UpdateNodeVector ();
        }

        [Button ("刷新路径")]
        private void RefreshPath ()
        {
            this.PathList.Clear ();
            for (int i = 0; i < transform.childCount; i++)
            {
                this.PathList.Add (transform.GetChild (i));
            }
            UpdateNodeVector ();
        }

        private void UpdateNodeVector ()
        {
            this._pathList = new List<Vector3>();
            foreach (Transform t in PathList)
            {
                _pathList.Add (t.position);
            }
        }

        [Button ("添加路径节点")]
        private void AddPathNode ()
        {
            //创建一个空的游戏对象（编辑器中）
            GameObject go = new GameObject ("PathNode");
            UnityEditor.Selection.activeGameObject = go;
            if (PathList != null && PathList.Count > 0)
            {
                go.transform.position = PathList[PathList.Count - 1].position + Vector3.up;
            }
            else
            {
                go.transform.position = transform.position;
            }
            go.transform.SetParent (this.transform);
            PathList.Add (go.transform);
            UpdateNodeVector ();
        }
#endif
    }
}