580611027 Change code to check input side before creating a new game.

[ThanapatSornsrivichai]

There is a bug when you change side parameter in url.For example, x to OX and it still creating the game as side x with parameter side = OX. Shown in picture 1:

Picture 1:

Then, when another player joins the game and starts to play.The game will crash.

This problem can be fixed by :

• Change code in action startgame as following: change format to get side from parameter side instead of setting it as x by default.Shown in pictures below.

[pruet]

alright