message_area.insertAdjacentHTML('beforeend', message);
}
+/*********************************************************
+ * Handling server-sent event stream *
+ *********************************************************/
+
const events = new EventSource("events");
events.onerror = function(event) {
}
};
+events.addEventListener("game-info", event => {
+ const info = JSON.parse(event.data);
+
+ window.game.set_game_info(info);
+});
+
+events.addEventListener("player-info", event => {
+ const info = JSON.parse(event.data);
+
+ window.game.set_player_info(info);
+});
+
+events.addEventListener("player-update", event => {
+ const info = JSON.parse(event.data);
+
+ if (info.id === window.game.state.player_info.id)
+ window.game.set_player_info(info);
+});
+
events.addEventListener("move", event => {
const move = JSON.parse(event.data);
}
});
+/*********************************************************
+ * Game and supporting classes *
+ *********************************************************/
+
+function GameInfo(props) {
+ if (! props.id)
+ return null;
+
+ return (
+ <div className="game-info">
+ <h2>{props.id}</h2>
+ Invite a friend to play by sending this URL: {props.url}
+ </div>
+ );
+}
+
+function PlayerInfo(props) {
+ if (! props.id)
+ return null;
+
+ return (
+ <div className="player-info">
+ <h2>Player</h2>
+ {props.name}, ID: {props.id},
+ {props.team ? ` on team ${props.team}` : " not on a team"}
+ </div>
+ );
+}
+
function Square(props) {
let className = "square";
return (
<Square
value={value}
- active={! this.props.game_over && ! value}
+ active={this.props.active && ! value}
onClick={() => this.props.onClick(i)}
/>
);
}
}
-function fetch_post_json(api = '', data = {}) {
+function fetch_method_json(method, api = '', data = {}) {
const response = fetch(api, {
- method: 'POST',
+ method: method,
headers: {
'Content-Type': 'application/json'
},
return response;
}
+function fetch_post_json(api = '', data = {}) {
+ return fetch_method_json('POST', api, data);
+}
+
+async function fetch_put_json(api = '', data = {}) {
+ return fetch_method_json('PUT', api, data);
+}
+
class Game extends React.Component {
constructor(props) {
super(props);
this.state = {
+ game_info: {},
+ player_info: {},
history: [
{
squares: Array(9).fill(null)
};
}
- send_move(i) {
- return fetch_post_json("move", { move: i });
+ set_game_info(info) {
+ this.setState({
+ game_info: info
+ });
+ }
+
+ set_player_info(info) {
+ this.setState({
+ player_info: info
+ });
}
reset_board() {
});
}
- async handle_click(i) {
- const response = await this.send_move(i);
+ async handle_click(i, first_move) {
+ let move = { move: i };
+ if (first_move) {
+ move.assert_first_move = true;
+ }
+ const response = await fetch_post_json("move", move);
if (response.status == 200) {
const result = await response.json();
if (! result.legal)
}
}
+ join_team(team) {
+ fetch_put_json("player", {team: team});
+ }
+
render() {
- const history = this.state.history;
- const current = history[this.state.step_number];
+ const state = this.state;
+ const history = state.history;
+ const current = history[state.step_number];
const winner = calculate_winner(current.squares);
+ const first_move = state.step_number === 0;
+ const my_team = state.player_info.team;
+ var board_active;
let status;
- if (winner) {
- status = "Winner: " + winner;
- } else {
- status = "Next player: " + (Team.properties[this.state.next_to_play].name);
+ if (winner)
+ {
+ status = winner + " wins!";
+ if (state.player_info.team != "")
+ {
+ if (my_team === winner)
+ status += " Congratulations!";
+ else
+ status += " Better luck next time.";
+ }
+ board_active = false;
+ }
+ else if (first_move)
+ {
+ status = "Either player can make the first move.";
+ board_active = true;
+ }
+ else if (my_team === "")
+ {
+ status = "You're just watching the game.";
+ board_active = false;
+ }
+ else if (my_team === Team.properties[state.next_to_play].name)
+ {
+ status = "Your turn. Make a move.";
+ board_active = true;
+ }
+ else
+ {
+ status = "Waiting for your opponent to move.";
+ board_active = false;
}
- return (
- <div className="game">
- <div className="game-info">
- <div>{status}</div>
- </div>
+ return [
+ <GameInfo
+ key="game-info"
+ id={state.game_info.id}
+ url={state.game_info.url}
+ />,
+ <PlayerInfo
+ key="player-info"
+ id={state.player_info.id}
+ name={state.player_info.name}
+ team={state.player_info.team}
+ />,
+ <div key="game" className="game">
+ <button className="inline"
+ onClick={() => this.join_team('X')}>Join Team X</button>
+ {" "}
+ <button className="inline"
+ onClick={() => this.join_team('O')}>Join Team O</button>
+ <div>{status}</div>
<div className="game-board">
<Board
- game_over={winner}
+ active={board_active}
squares={current.squares}
- onClick={i => this.handle_click(i)}
+ onClick={i => this.handle_click(i, first_move)}
/>
</div>
</div>
- );
+ ];
}
}
-// ========================================
-
ReactDOM.render(<Game
ref={(me) => window.game = me}
/>, document.getElementById("tictactoe"));