using UnityEngine;
using System.Collections;
using System.Collections.Generic;
//纹理图集加载管理
public class PPTextureManage : MonoBehaviour {
private static GameObject m_pMainObject;
private static PPTextureManage m_pContainer = null;
public static PPTextureManage getInstance(){
if(m_pContainer == null){
m_pContainer = m_pMainObject.GetComponent<PPTextureManage> ();
}
return m_pContainer;
}
private Dictionary<string, Object[]> m_pAtlasDic;//图集的集合
void Awake(){
initData ();
}
private void initData(){
PPTextureManage.m_pMainObject = gameObject;
m_pAtlasDic = new Dictionary<string, Object[]> ();
}
// Use this for initialization
void Start () {
}
//加载图集上的一个精灵
public Sprite LoadAtlasSprite(string _spriteAtlasPath,string _spriteName){
Sprite _sprite = FindSpriteFormBuffer (_spriteAtlasPath,_spriteName);
if (_sprite == null) {
Object[] _atlas = Resources.LoadAll (_spriteAtlasPath);
m_pAtlasDic.Add (_spriteAtlasPath,_atlas);
_sprite = SpriteFormAtlas (_atlas,_spriteName);
}
return _sprite;
}
//删除图集缓存
public void DeleteAtlas(string _spriteAtlasPath){
if (m_pAtlasDic.ContainsKey (_spriteAtlasPath)) {
m_pAtlasDic.Remove (_spriteAtlasPath);
}
}
//从缓存中查找图集，并找出sprite
private Sprite FindSpriteFormBuffer(string _spriteAtlasPath,string _spriteName){
if (m_pAtlasDic.ContainsKey (_spriteAtlasPath)) {
Object[] _atlas = m_pAtlasDic[_spriteAtlasPath];
Sprite _sprite = SpriteFormAtlas(_atlas,_spriteName);
return _sprite;
}
return null;
}
//从图集中，并找出sprite
private Sprite SpriteFormAtlas(Object[] _atlas,string _spriteName){
for (int i = ; i < _atlas.Length; i++) {
if (_atlas [i].GetType () == typeof(UnityEngine.Sprite)) {
if(_atlas [i].name == _spriteName){
return (Sprite)_atlas [i];
}
}
}
Debug.LogWarning ("图片名:"+_spriteName+";在图集中找不到");
return null;
}
}