From: andrea <kerny404@...>
Date: 2009-01-08T07:39:48+09:00
Subject: tictactoe and choice

I was trying to code the classic tictactoe in ruby.
Now it only plays itself doing random moves until someone wins, and
there
are still some bugs.

But the thing that really I don't understand is another,

With this line every time I pick the next move:

  x, y = (0...(board.length)).to_a.choice, (0...
(board.length)).to_a.choice

But I get always the same game!!:

step 0 we have:
[[nil, nil, nil], [nil, nil, nil], [nil, nil, nil]]

step 1 we have:
[[nil, nil, "O"], [nil, nil, nil], [nil, nil, "X"]]

step 2 we have:
[[nil, "O", "O"], ["X", nil, nil], [nil, nil, "X"]]
sorry 2, 2 already set
sorry 0, 2 already set

step 3 we have:
[[nil, "O", "X"], ["X", nil, nil], ["O", "X", "X"]]
player X has won
[[nil, "O", "X"], ["X", nil, "X"], ["O", "X", "X"]]


It looks like there's nothing really random here, am I missing
something maybe??
The full source code

http://pastie.textmate.org/private/ivw3qswnf6rbppyd78m0qq

Thanks a lot for any hint