const cid = req.body.cid;
if (
Array.isArray(gameInfo.players) &&
- gameInfo.players.some(p => p.id == req.userId) &&
+ gameInfo.players.some(p => p.uid == req.userId) &&
(!cid || cid.toString().match(/^[0-9]+$/)) &&
GameModel.checkGameInfo(gameInfo)
) {