cocos2d-x学习笔记(23)–地图的使用3–CCTMXLayer

class MapTest2:public CCLayer
{
protected:
	CCSprite* m_player;
public:
	MapTest2();
	~MapTest2();
	void repositionSprite(float dt);
};

/************************************************************************/
/* MapTest2                                                                     */
/************************************************************************/
MapTest2::MapTest2()
{
	CCTMXTiledMap* map = CCTMXTiledMap::create("map.tmx");
	addChild(map, 0, kTagMap);
	CCSize s = map->getContentSize();
	CCSize winSize = CCDirector::sharedDirector()->getWinSize();
	map->setAnchorPoint(ccp(0.5, 0.5));
	//如果不设置AnchorPoint，那么map默认的AnchorPoint是(0, 0)，即左下角，就不是我们想要的地图中心
	map->setPosition(ccp(winSize.width / 2, winSize.height / 2));

	m_player = CCSprite::create("player.png");
	
	map->addChild(m_player, map->getChildren()->count() );
	m_player->retain();
	map->reorderChild(m_player, 0);    
	int mapWidth = map->getMapSize().width * map->getTileSize().width;
	int mapHeight = map->getMapSize().height * map->getTileSize().height;
	m_player->setPosition( ccp(mapWidth / 2, mapHeight / 2) );
	//由于m_player是添加在map中，那么setPosition是相对于map这一父坐标系，
	//所以我们设置ccp(mapWidth / 2, mapHeight / 2)，而不是屏幕坐标系的中心
	map->reorderChild(m_player, 0);
	//设置精灵对象的Zorder值，让精灵穿梭在草丛中

	//CCArray* array = map->getChildren();
	//CCObject* object = NULL;
	// CCSpriteBatchNode* child = NULL;
	//CCARRAY_FOREACH(array, object)
	//{
	//	child = (CCSpriteBatchNode*)object;
	//	if(!child)
	//		return;
	//	child->getTexture()->setAntiAliasTexParameters();
	//}//设置抗锯齿，如果需要对地图进行放大或缩小时，就可以使用

	CCActionInterval* move = CCMoveBy::create(10, ccp(300,250));
	CCActionInterval* back = move->reverse();
	CCFiniteTimeAction* seq = CCSequence::create(move, back,NULL);
	m_player->runAction( CCRepeatForever::create((CCActionInterval*) seq) );
}

MapTest2::~MapTest2()
{
	m_player->release();
}

// returns the delta position between the current location and the previous location in OpenGL coordinates
CCPoint CCTouch::getDelta() const
{     
    return ccpSub(getLocation(), getPreviousLocation()); 
}

void MapTest2::registerWithTouchDispatcher()
{
	CCDirector* pDirector = CCDirector::sharedDirector();
	pDirector->getTouchDispatcher()->addTargetedDelegate(this, 0, true);
}
bool MapTest2::ccTouchBegan(CCTouch* touch, CCEvent* event)
{
	return true;
}

void MapTest2::ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent)
{
	CCPoint diff = pTouch->getDelta();
	CCTMXTiledMap *map = (CCTMXTiledMap*)getChildByTag(kTagMap);
	CCPoint currentPos = map->getPosition();
	map->setPosition( ccpAdd(currentPos, diff) );
}

void MapTest2::update(float dt)
{
	CCTMXTiledMap* map = (CCTMXTiledMap*)getChildByTag(kTagMap);
	CCTMXLayer* layer = map->layerNamed("grass");//获取图层

	CCPoint coordinate = ccp(10, 22);//这里是tmx地图中的坐标，一个tile的大小就是地图的基本单位
	//int flags;
	//unsigned int GID = layer->tileGIDAt(coordinate, (ccTMXTileFlags*)&flags);//第三个参数是ccTMXTileFlags指针类型
	//if( flags == kCCTMXTileVerticalFlag )
	//	flags &= ~kCCTMXTileVerticalFlag;
	//else
	//	flags |= kCCTMXTileVerticalFlag;
	//layer->setTileGID(GID ,coordinate, (ccTMXTileFlags)flags);

	CCSprite* sprite = layer->tileAt(coordinate);
	sprite->runAction(CCRotateBy::create(1,45));
}