像素点跟tile的索引之间的转换

//从cocos2d-x坐标转换为Tilemap坐标

CCPoint GameMap::tileCoordForPosition(CCPoint position)

{

int x = position.x / this->getTileSize().width;

int y = (((this->getMapSize().height) * this->getTileSize().height) - position.y) / this->getTileSize().height;

return ccp(x, y);

}

//从Tilemap坐标转换为cocos2d-x坐标

CCPoint GameMap::positionForTileCoord(CCPoint tileCoord)

{

CCPoint pos = ccp((tileCoord.x * this->getTileSize().width),

((this->getMapSize().height - tileCoord.y) * this->getTileSize().height));

return pos;

}