Tighten up the display of the PlayerInfo block

[lmno.games] / tictactoe / tictactoe.jsx

diff --git a/tictactoe/tictactoe.jsx b/tictactoe/tictactoe.jsx
index c51727dab72f9f4172f743b2422cdaed037d20cb..579526b7dcb401e0310027da092f47c8fead5691 100644 (file)
--- a/tictactoe/tictactoe.jsx
+++ b/tictactoe/tictactoe.jsx
@@ -20,6 +20,10 @@ ${message}
   message_area.insertAdjacentHTML('beforeend', message);
 }
 
+/*********************************************************
+ * Handling server-sent event stream                     *
+ *********************************************************/
+
 const events = new EventSource("events");
 
 events.onerror = function(event) {
@@ -28,6 +32,25 @@ 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);
 
@@ -37,13 +60,42 @@ events.addEventListener("move", event => {
 events.addEventListener("game-state", event => {
   const state = JSON.parse(event.data);
 
-  window.game.reset_state();
+  window.game.reset_board();
 
   for (let square of state.moves) {
     window.game.receive_move(square);
   }
 });
 
+/*********************************************************
+ * 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.player.id)
+    return null;
+
+  return (
+    <div className="player-info">
+      <h2>Player</h2>
+      {props.player.name}
+      {props.player.team ? ` (${props.player.team})` : ""}
+    </div>
+  );
+}
+
 function Square(props) {
   let className = "square";
 
@@ -69,7 +121,7 @@ class Board extends React.Component {
     return (
       <Square
         value={value}
-        active={! this.props.game_over && ! value}
+        active={this.props.active && ! value}
         onClick={() => this.props.onClick(i)}
       />
     );
@@ -98,9 +150,9 @@ class Board extends React.Component {
   }
 }
 
-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'
     },
@@ -109,10 +161,20 @@ function fetch_post_json(api = '', data = {}) {
   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)
@@ -123,11 +185,19 @@ class Game extends React.Component {
     };
   }
 
-  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_state() {
+  reset_board() {
     this.setState({
       history: [
         {
@@ -163,8 +233,12 @@ class Game extends React.Component {
     });
   }
 
-  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)
@@ -174,37 +248,82 @@ class Game extends React.Component {
     }
   }
 
+  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"
+        player={state.player_info}
+      />,
+      <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"));