Unity 4.x Game Development by Example Beginner's Guide

Click-spamming for fun and profit

The human player can also cheat, and place an X during the pause while the computer is "thinking". Try "click-spamming" the grid to place more Xs than you ought to. If you're very quick, you can fill the grid with Xs before the computer places a single O.

By adding a conditional check to the ClickSquare function, we can make sure the human can only place a piece when it's his or her turn:

function ClickSquare(square:GameObject)
{
  if(gameIsOver || currentPlayer == 2) return;

The double-pipe means "OR". If either of the statements separated by || in the conditional check resolve to true, then the code within the conditional is executed.

So if the human clicks to place a piece, if either the game is over or it's the ...