Input parameters:
player1(person playing a turn in the game as player 1 depending on turn)player2(person playing a turn in the game as player 2 depending on turn)row(row on 3x3 board to place cross or nought depending on turn)col(colum on 3x3 board to place cross or nought depending on turn)
INTENT. The intent of the {{play}} action is to place a cross, for {{player1}}, or a nought (a circle), for {{player2}}, at {{row}} and {{col}}, and thus making a move - playing a turn of the game. It is only the player having the current turn that makes a play when the {{play}} action is invoked.
The position must not be preoccupied (by cross or nought) on the board and the total amount of moves cannot exceed 9, where a maximum of 5 can be made by {{player1}} as the first player and 4 by {{player2}} as the second player.
I understand that {{player1}} or {{player2}}, depending on whose turn it is, pays for the RAM used to alter the game state.
TERM. This Contract expires at the conclusion of code execution.