class TicTacToe extends Game {
constructor(id) {
super(id);
- this.moves = [];
- this.board = Array(9).fill(null);
+ this.state = {
+ moves: [],
+ board: Array(9).fill(""),
+ next_player: "X",
+ };
}
/* Returns Boolean indicating whether move was legal and added. */
add_move(square) {
/* Cannot move to an occupied square. */
- if (this.board[square])
+ if (this.state.board[square])
return false;
- this.board[square] = 'X';
- this.moves.push(square);
+ this.state.board[square] = this.state.next_player;
+ this.state.moves.push(square);
+
+ if (this.state.next_player === "X")
+ this.state.next_player = "O";
+ else
+ this.state.next_player = "X";
return true;
}
handle_events(request, response) {
super.handle_events(request, response);
- /* When a new client joins, replay all previous moves to it. */
- for (let move of this.moves) {
- response.write(`event: move\ndata: ${move}\n\n`);
- }
+ /* When a new client joins, give them the current game state,
+ * (which includes the history of moves). */
+ const state_json = JSON.stringify(this.state);
+ response.write(`event: game-state\ndata: ${state_json}\n\n`);
}
}
name: "Tic Tac Toe",
identifier: "tictactoe"
};
-
-exports.meta = TicTacToe.meta;