cocoa2d-x tiled map添加tile翻转功能

         今天用cocos2d-1.0.1-x-0.9.2来测试tiled map的功能，结果发现翻转过的tile都不见了，调试代码发现原来代码里不支持，没有对x，y翻转作处理，结果翻转过的tile导致数值多大没有被现实出来。

        （ 注：最新的Tiled map已经支持flip x和flip y，选中tile按键盘上x键，y键即可，其他旋转功能他们正在添加中。。。最新版本可以从http://www.mapeditor.org/下载）

          修改代码实现此功能，  CCTMXLayer.cpp文件里针对appendTileForGID方法作出修改，上代码：

         // used only when parsing the map. useless after the map was parsed
	// since lot's of assumptions are no longer true
	CCSprite * CCTMXLayer::appendTileForGID(unsigned int gid, const CCPoint& pos)
	{
		//lancer add for tile flip //setFlipX
		int flip = gid>>28;
		int tileid =  gid &0x0FFFFFFF;
		gid = tileid;
		//end
		
		CCRect rect = m_pTileSet->rectForGID(gid);
                rect = CCRectMake(rect.origin.x / m_fContentScaleFactor, rect.origin.y / m_fContentScaleFactor, rect.size.width/ m_fContentScaleFactor, rect.size.height/ m_fContentScaleFactor);


		int z = (int)(pos.x + pos.y * m_tLayerSize.width);


		if( ! m_pReusedTile )
		{
			m_pReusedTile = new CCSprite();
			m_pReusedTile->initWithBatchNode(this, rect);
		}
		else
		{
			m_pReusedTile->initWithBatchNode(this, rect);
		}


		m_pReusedTile->setPosition(positionAt(pos));
		m_pReusedTile->setVertexZ((float)vertexZForPos(pos));
		m_pReusedTile->setAnchorPoint(CCPointZero);
		m_pReusedTile->setOpacity(m_cOpacity);


		//lancer add for tile flip //setFlipX
		cocos2d::CCLog("---gid=%d, flip sign=%d, tileid=%d\n", gid, flip, tileid);
#define TILE_FLIP_X 8
#define TILE_FLIP_Y 4	
		if(flip & TILE_FLIP_X){
			cocos2d::CCLog("set flip x\n");
			m_pReusedTile->setFlipX(true);
		}
		if(flip & TILE_FLIP_Y){
			cocos2d::CCLog("set flip y\n");
			m_pReusedTile->setFlipY(true);
		}
		//end


		// optimization:
		// The difference between appendTileForGID and insertTileforGID is that append is faster, since
		// it appends the tile at the end of the texture atlas
		unsigned int indexForZ = m_pAtlasIndexArray->num;


		// don't add it using the "standard" way.
		addQuadFromSprite(m_pReusedTile, indexForZ);


		// append should be after addQuadFromSprite since it modifies the quantity values
		ccCArrayInsertValueAtIndex(m_pAtlasIndexArray, (void*)z, indexForZ);


		return m_pReusedTile;
	}
       

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Author：smilelance    

From： http://blog.csdn.net/smilelance