ccQuad3 CCTiledGrid3DAction::tile(const CCPoint& pos)
{
    CCTiledGrid3D *g = (CCTiledGrid3D*)m_pTarget->getGrid();
    return g->tile(pos);
}
	ccQuad3 CCTiledGrid3DAction::tile(cocos2d::ccGridSize pos)
	{
		CCTiledGrid3D *g = (CCTiledGrid3D*)m_pTarget->getGrid();
		return g->tile(pos);
	}