U3D简单得换装技术

四个类完成，前提是 资源得名字配合

UI按钮点击响应类

using UnityEngine;
using System.Collections;

public class ButtonClickHandler : MonoBehaviour {
    //处理业务控制类
    private SkinController skinController = null;

    //按钮执行相应业务得向导
    public void OnButtonClickWizard()
    {
       var arr= UIButton.current.name.Split(' ');
        var function = arr[0];
        var goName=arr[1];
        switch (function)
        {
            case "Character":
                skinController.ChangeCharacter(goName);
                break;
            case "Clother":
                skinController.ChangeClother(goName);
                break;
            case "Weapons":
                skinController.ChangeWeapons(goName);
                break;
            case "Animation":
                skinController.ChangeAnimation(goName);
                break;
        }
    }
    /// <summary>
    /// 初始化为所有Button注册点击后得响应方法
    /// </summary>
	void Start () {
        skinController = FindObjectOfType<SkinController>();
        for (int i = 0; i < transform.childCount; i++)
        {
            transform.GetChild(i).GetComponent<UIButton>().onClick.Add(new EventDelegate(OnButtonClickWizard));//NGUI
        }
	}

}

　　加载资源工厂类

using UnityEngine;
using System.Collections.Generic;

/// <summary>
/// 创建动态加载资源
/// </summary>
public class CharacterFactory  {
    //各类资源得位置
    private string CharacterPath = "Prefabs/mon_";
    private string ClotherPath = "Clother/";
    private string WeaponPath = "Weapon/wp_";
    //资源对象内存缓存
    private Dictionary<string, Object> GoCache;

    private static CharacterFactory instance;
    public static CharacterFactory Instance
    {
        get
        {
            if(instance==null)
                instance = new CharacterFactory();
                return instance;
        }
    }

    public CharacterFactory()
    {
        GoCache = new Dictionary<string, Object>();
    }
    public GameObject CreateCharacter(string characterName)
    {
        return LoadResource<GameObject>(CharacterPath+ characterName);
    }
    public GameObject CreateWeapon(string weaponName)
    {
        return LoadResource<GameObject>(WeaponPath + weaponName);
    }
    public Texture CreateClother(string clotherName)
    {
        return LoadResource<Texture>(ClotherPath + clotherName);
    }

    private T LoadResource<T>(string resourceName)
        where T :Object
    {
        //检测是否已创建该资源
        if(GoCache.ContainsKey(resourceName))
        {
            T go = (T)Resources.Load(resourceName);

            if(!(go is Texture))//如果不是贴图就运行下面
            {
                go = (T)GameObject.Instantiate(go);
                go.name = go.name.Replace("(Clone)", "");
                GoCache.Add(resourceName, go);
            }
        }
        //有直接返回
        return (T)GoCache[resourceName];
    }
}

　　业务处理控制类

using UnityEngine;
using System.Collections;
using System;

/// <summary>
/// 业务处理控制类
/// </summary>
public class SkinController : MonoBehaviour {

    public GameObject currentCharacter = null;
    public GameObject currentWeapon = null;

    /// <summary>
    /// 换角色
    /// </summary>
    /// <param name="goName"></param>
    public void ChangeCharacter(string goName)
    {
        var character = CharacterFactory.Instance.CreateCharacter(goName);
        //判断当前角色是否为空， 或当前角色已展示
        if (currentCharacter != null && currentCharacter.name != character.name)
            currentCharacter.SetActive(false);
        character.transform.position = transform.position;
        character.transform.rotation = transform.rotation;
        this.currentCharacter = character;
        this.currentCharacter.SetActive(true);
    }
    /// <summary>
    /// 换服装
    /// </summary>
    /// <param name="goName"></param>
    public void ChangeClother(string goName)
    {
        if(currentCharacter!=null)
        {
           var clother= CharacterFactory.Instance.CreateClother(currentCharacter.name+"_"+goName);
            var chName = currentCharacter.name;
            currentCharacter.transform.FindChild(chName).GetComponent<Renderer>().material.mainTexture = clother;
        }
    }
    /// <summary>
    /// 换武器
    /// </summary>
    /// <param name="goName"></param>
    public void ChangeWeapons(string goName)
    {
        if (currentCharacter != null)
        {
            var weapon = CharacterFactory.Instance.CreateWeapon(goName);
            if (currentWeapon != null && currentWeapon.name != weapon.name)
                currentWeapon.SetActive(false);
            GameObject wpHand = GlobalTool.FindChild(currentCharacter.transform, "wphand");

            currentWeapon = weapon;
            currentWeapon.transform.parent = wpHand.transform;
            currentWeapon.transform.position = wpHand.transform.position;
            currentWeapon.transform.rotation = wpHand.transform.rotation;
            currentWeapon.transform.localScale = new Vector3(1, 1, 1);
            currentWeapon.SetActive(true);
        }

        }
    /// <summary>
    /// 播放动画
    /// </summary>
    /// <param name="goName"></param>
    public void ChangeAnimation(string goName)
    {             currentCharacter.GetComponent<Animation>().Play(goName);
    }
}

　　查找角色上子物体优化算法类

using UnityEngine;
using System.Collections;

public class GlobalTool  {

	public static GameObject FindChild(Transform trans,string goName)
    {
        var child=trans.FindChild(goName);
        if(child!= null)
            return child.gameObject;
        GameObject go = null;
        for (int i = 0; i < trans.childCount; i++)
        {
           child= trans.GetChild(i);
           go= FindChild(child, goName);
            if(go!=null)
            {
                return go;
            }
        }
        return null;
    }
}