using UnityEngine;

using System.Collections;

using System.Collections.Generic;

public class MyAvatar : MonoBehaviour

{

	[System.Serializable]

	public class PartInfo

	{

		public GameObject DefaultPart;

		public GameObject NewPart;

	}

	//目前部件列表

	public List<PartInfo> AvatorParts;

	/// <summary>

	/// 换装

	/// </summary>

	/// <param name="idx">部件索引id</param>

	/// <param name="res">装备资源</param>

	public void ChangePart(int idx, GameObject res)

	{

		if (idx < 0 || idx >= AvatorParts.Count)

		{

			Debug.Log("out of range");

			return;

		}

		//获得这个部件信息

		var info = AvatorParts[idx];

		//先删除新装备的

		if (null != info.NewPart)

		{

			GameObject.Destroy(info.NewPart);

			info.NewPart = null;

		}

		if (null == res)

		{//脱装备，还原成默认装备

			info.DefaultPart.SetActive(true);

		}

		else

		{//穿新装备

			info.DefaultPart.SetActive(false);

			//实例化那个部件

			var go = GameObject.Instantiate(res) as GameObject;

			//获得蒙皮Renderer

			var newSkin = go.GetComponentInChildren<SkinnedMeshRenderer>();

			//要挂接的是带蒙皮Renderer

			var newPart = newSkin.gameObject;

			//挂上

			newPart.transform.parent = info.DefaultPart.transform.parent;

			//在主角骨骼身体里找到该部件所需要的骨骼（这里有一点需求就是美术在做部件时是要带着骨骼的）

			var bones = new Transform[newSkin.bones.Length];

			for (int i = 0; i < newSkin.bones.Length; i++)

			{

				bones[i] = FindChild(gameObject.transform, newSkin.bones[i].name);

			}

			//重新赋值骨骼

			newSkin.bones = bones;

			//给当前部件信息赋值

			info.NewPart = newPart;

			//删除剩下没用的东西

			GameObject.Destroy(go);

		}

	}

	public static Transform FindChild(Transform t, string searchName)

	{

		foreach (Transform c in t)

		{

			string partName = c.name;

			if (partName == searchName)

			{

				return c;

			}

			else

			{

				Transform r = FindChild(c, searchName);

				if (r != null)

				{

					return r;

				}

			}

		}

		return null;

	}

}