git.cworth.org Git - lmno.games/blob - empathy/empathy.jsx

   1 const MAX_PROMPT_ITEMS = 20;
   2
   3 function undisplay(element) {
   4   element.style.display="none";
   5 }
   6
   7 function add_message(severity, message) {
   8   message = `<div class="message ${severity}" onclick="undisplay(this)">
   9 <span class="hide-button" onclick="undisplay(this.parentElement)">&times;</span>
  10 ${message}
  11 </div>`;
  12   const message_area = document.getElementById('message-area');
  13   message_area.insertAdjacentHTML('beforeend', message);
  14 }
  15
  16 /*********************************************************
  17  * Handling server-sent event stream                     *
  18  *********************************************************/
  19
  20 const events = new EventSource("events");
  21
  22 events.onerror = function(event) {
  23   if (event.target.readyState === EventSource.CLOSED) {
  24     setTimeout(() => {
  25       add_message("danger", "Connection to server lost.");
  26     }, 1000);
  27   }
  28 };
  29
  30 events.addEventListener("game-info", event => {
  31   const info = JSON.parse(event.data);
  32
  33   window.game.set_game_info(info);
  34 });
  35
  36 events.addEventListener("player-info", event => {
  37   const info = JSON.parse(event.data);
  38
  39   window.game.set_player_info(info);
  40 });
  41
  42 events.addEventListener("player-enter", event => {
  43   const info = JSON.parse(event.data);
  44
  45   window.game.set_other_player_info(info);
  46 });
  47
  48 events.addEventListener("player-update", event => {
  49   const info = JSON.parse(event.data);
  50
  51   if (info.id === window.game.state.player_info.id)
  52     window.game.set_player_info(info);
  53   else
  54     window.game.set_other_player_info(info);
  55 });
  56
  57 events.addEventListener("game-state", event => {
  58   const state = JSON.parse(event.data);
  59
  60   window.game.set_prompts(state.prompts);
  61
  62   window.game.set_active_prompt(state.active_prompt);
  63
  64   window.game.set_scores(state.scores);
  65
  66   window.game.set_ambiguities(state.ambiguities);
  67 });
  68
  69 events.addEventListener("prompt", event => {
  70   const prompt = JSON.parse(event.data);
  71
  72   window.game.add_or_update_prompt(prompt);
  73 });
  74
  75 events.addEventListener("start", event => {
  76   const prompt = JSON.parse(event.data);
  77
  78   window.game.set_active_prompt(prompt);
  79 });
  80
  81 events.addEventListener("answered", event => {
  82   const players_answered = JSON.parse(event.data);
  83
  84   window.game.set_players_answered(players_answered);
  85 });
  86
  87 events.addEventListener("ambiguities", event => {
  88   const ambiguities = JSON.parse(event.data);
  89
  90   window.game.set_ambiguities(ambiguities);
  91 });
  92
  93 events.addEventListener("judged", event => {
  94   const players_judged = JSON.parse(event.data);
  95
  96   window.game.set_players_judged(players_judged);
  97 });
  98
  99 events.addEventListener("scores", event => {
 100   const scores = JSON.parse(event.data);
 101
 102   window.game.set_scores(scores);
 103 });
 104
 105 /*********************************************************
 106  * Game and supporting classes                           *
 107  *********************************************************/
 108
 109 function copy_to_clipboard(id)
 110 {
 111   const tmp = document.createElement("input");
 112   tmp.setAttribute("value", document.getElementById(id).innerHTML);
 113   document.body.appendChild(tmp);
 114   tmp.select();
 115   document.execCommand("copy");
 116   document.body.removeChild(tmp);
 117 }
 118
 119 const GameInfo = React.memo(props => {
 120   if (! props.id)
 121     return null;
 122
 123   return (
 124     <div className="game-info">
 125       <span className="game-id">{props.id}</span>
 126       {" "}
 127       Share this link to invite friends:{" "}
 128       <span id="game-share-url">{props.url}</span>
 129       {" "}
 130       <button
 131         className="inline"
 132         onClick={() => copy_to_clipboard('game-share-url')}
 133       >Copy Link</button>
 134     </div>
 135   );
 136 });
 137
 138 const PlayerInfo = React.memo(props => {
 139   if (! props.player.id)
 140     return null;
 141
 142   return (
 143     <div className="player-info">
 144       <span className="players-header">Players: </span>
 145       {props.player.name}
 146       {props.player.score > 0 ? ` (${props.player.score})` : ""}
 147       {props.other_players.map(other => (
 148         <span key={other.id}>
 149           {", "}
 150           {other.name}
 151           {other.score > 0 ? ` (${other.score})` : ""}
 152         </span>
 153       ))}
 154     </div>
 155   );
 156 });
 157
 158 function fetch_method_json(method, api = '', data = {}) {
 159   const response = fetch(api, {
 160     method: method,
 161     headers: {
 162       'Content-Type': 'application/json'
 163     },
 164     body: JSON.stringify(data)
 165   });
 166   return response;
 167 }
 168
 169 function fetch_post_json(api = '', data = {}) {
 170   return fetch_method_json('POST', api, data);
 171 }
 172
 173 async function fetch_put_json(api = '', data = {}) {
 174   return fetch_method_json('PUT', api, data);
 175 }
 176
 177 class CategoryRequest extends React.PureComponent {
 178   constructor(props) {
 179     super(props);
 180     this.category = React.createRef();
 181
 182     this.handle_change = this.handle_change.bind(this);
 183     this.handle_submit = this.handle_submit.bind(this);
 184   }
 185
 186   handle_change(event) {
 187     const category_input = this.category.current;
 188     const category = category_input.value;
 189
 190     const match = category.match(/[0-9]+/);
 191     if (match) {
 192       const num_items = parseInt(match[0], 10);
 193       if (num_items <= MAX_PROMPT_ITEMS)
 194         category_input.setCustomValidity("");
 195     }
 196   }
 197
 198   async handle_submit(event) {
 199     const form = event.currentTarget;
 200     const category_input = this.category.current;
 201     const category = category_input.value;
 202
 203     /* Prevent the default page-changing form-submission behavior. */
 204     event.preventDefault();
 205
 206     const match = category.match(/[0-9]+/);
 207     if (match === null) {
 208       category_input.setCustomValidity("Category must include a number");
 209       form.reportValidity();
 210       return;
 211     }
 212
 213     const num_items = parseInt(match[0], 10);
 214
 215     if (num_items > MAX_PROMPT_ITEMS) {
 216       category_input.setCustomValidity(`Maximum number of items is ${MAX_PROMPT_ITEMS}`);
 217       form.reportValidity();
 218       return;
 219     }
 220
 221     const response = await fetch_post_json("prompts", {
 222       items: num_items,
 223       prompt: category
 224     });
 225
 226     if (response.status === 200) {
 227       const result = await response.json();
 228       console.log(result);
 229       if (! result.valid) {
 230         add_message("danger", result.message);
 231         return;
 232       }
 233     } else {
 234       add_message("danger", "An error occurred submitting your category");
 235     }
 236
 237     form.reset();
 238   }
 239
 240   render() {
 241     return (
 242       <div className="category-request">
 243         <h2>Submit a Category</h2>
 244         <p>
 245           Suggest a category to play. Don't forget to include the
 246           number of items for each person to submit.
 247         </p>
 248
 249         <form onSubmit={this.handle_submit} >
 250           <div className="form-field large">
 251             <input
 252               type="text"
 253               id="category"
 254               placeholder="6 things at the beach"
 255               required
 256               autoComplete="off"
 257               onChange={this.handle_change}
 258               ref={this.category}
 259             />
 260           </div>
 261
 262           <div className="form-field large">
 263             <button type="submit">
 264               Send
 265             </button>
 266           </div>
 267
 268         </form>
 269       </div>
 270     );
 271   }
 272 }
 273
 274 const PromptOptions = React.memo(props => {
 275
 276   if (props.prompts.length === 0)
 277     return null;
 278
 279   return (
 280     <div className="prompt-options">
 281       <h2>Vote on Categories</h2>
 282       <p>
 283         Select any categories below that you'd like to play.
 284         You can choose as many as you'd like.
 285       </p>
 286       {props.prompts.map(p => {
 287         return (
 288           <button
 289             className="vote-button"
 290             key={p.id}
 291             onClick={() => fetch_post_json(`vote/${p.id}`) }
 292           >
 293             {p.prompt}
 294             <div className="vote-choices">
 295               {p.votes.map(v => {
 296                 return (
 297                   <div
 298                     key={v}
 299                     className="vote-choice"
 300                   >
 301                     {v}
 302                   </div>
 303                 );
 304               })}
 305             </div>
 306           </button>
 307         );
 308       })}
 309     </div>
 310   );
 311 });
 312
 313 const LetsPlay = React.memo(props => {
 314
 315   function handle_click(prompt_id) {
 316     fetch_post_json
 317   }
 318
 319   const quorum = Math.round((props.num_players + 1) / 2);
 320   const max_votes = props.prompts.reduce(
 321     (max_so_far, v) => Math.max(max_so_far, v.votes.length), 0);
 322
 323   if (max_votes < quorum)
 324     return null;
 325
 326   const candidates = props.prompts.filter(p => p.votes.length >= quorum);
 327   const index = Math.floor(Math.random() * candidates.length);
 328   const winner = candidates[index];
 329
 330   return (
 331     <div className="lets-play">
 332       <h2>Let's Play</h2>
 333       <p>
 334         That should be enough voting. If you're not waiting for any
 335         other players to join, then let's start.
 336       </p>
 337       <button
 338         className="lets-play"
 339         onClick={() => fetch_post_json(`start/${winner.id}`) }
 340       >
 341         Start Game
 342       </button>
 343     </div>
 344   );
 345 });
 346
 347 class Ambiguities extends React.PureComponent {
 348
 349   constructor(props) {
 350     super(props);
 351
 352     this.state = {
 353       word_groups: props.words.map(word => [word]),
 354       submitted: false,
 355       selected: null
 356     };
 357   }
 358
 359   async handle_submit() {
 360     const response = await fetch_post_json(
 361       `judging/${this.props.prompt.id}`,{
 362         word_groups: this.state.word_groups
 363       }
 364     );
 365
 366     if (response.status === 200) {
 367       const result = await response.json();
 368       if (! result.valid) {
 369         add_message("danger", result.message);
 370         return;
 371       }
 372     } else {
 373       add_message("danger", "An error occurred submitting your answers");
 374       return;
 375     }
 376
 377     this.setState({
 378       submitted: true
 379     });
 380   }
 381
 382   handle_click(word) {
 383     if (this.state.selected == word) {
 384       /* Second click on same word removes the word from the group. */
 385       const new_groups = this.state.word_groups.filter(
 386         group => (! group.includes(this.state.selected)) || (group.length > 1)).map(
 387           group => {
 388             return group.filter(w => w !== this.state.selected);
 389           }
 390         );
 391       this.setState({
 392         selected: null,
 393         word_groups: [...new_groups, [word]]
 394       });
 395     } else if (this.state.selected) {
 396       /* Click of a second word groups the two together. */
 397       const new_groups = this.state.word_groups.filter(
 398         group => (! group.includes(word)) || (group.length > 1)).map(
 399           group => {
 400             if (group.includes(this.state.selected)) {
 401               if (! group.includes(word))
 402                 return [...group, word];
 403               else
 404                 return group;
 405             } else {
 406               return group.filter(w => w !== word);
 407             }
 408           }
 409         );
 410       this.setState({
 411         selected: null,
 412         word_groups: new_groups
 413       });
 414     } else {
 415       /* First click of a word selects it. */
 416       this.setState({
 417         selected: word
 418       });
 419     }
 420   }
 421
 422   render() {
 423     if (this.state.submitted)
 424       return (
 425         <div className="please-wait">
 426           <h2>{this.props.players_judged}/
 427             {this.props.players_total} players have responded</h2>
 428           <p>
 429             Please wait for the rest of the players to complete judging.
 430           </p>
 431         </div>
 432       );
 433
 434     const btn_class = "ambiguity-button";
 435     const btn_selected_class = btn_class + " selected";
 436
 437     return (
 438       <div className="ambiguities">
 439         <h2>Judging Answers</h2>
 440         <p>
 441           Click on each pair of answers that should be scored as equivalent,
 442           (and click any word twice to split it out from a group). Remember,
 443           what goes around comes around, so it's best to be generous when
 444           judging.
 445         </p>
 446         {this.state.word_groups.map(word_group => {
 447           return (
 448             <div
 449               className="ambiguity-group"
 450               key={word_group[0]}
 451             >
 452             {word_group.map(word => {
 453               return (
 454                 <button
 455                 className={this.state.selected === word ?
 456                            btn_selected_class : btn_class }
 457                 key={word}
 458                 onClick={() => this.handle_click(word)}
 459                   >
 460                 {word}
 461                 </button>
 462               );
 463             })}
 464             </div>
 465           );
 466         })}
 467         <p>
 468           Click here when done judging:<br/>
 469           <button
 470             onClick={() => this.handle_submit()}
 471           >
 472             Send
 473           </button>
 474         </p>
 475       </div>
 476     );
 477   }
 478 }
 479
 480 class ActivePrompt extends React.PureComponent {
 481
 482   constructor(props) {
 483     super(props);
 484     const items = props.prompt.items;
 485
 486     this.state = {
 487       submitted: false
 488     };
 489
 490     this.answers = [...Array(items)].map(() => React.createRef());
 491     this.handle_submit = this.handle_submit.bind(this);
 492   }
 493
 494   async handle_submit(event) {
 495     const form = event.currentTarget;
 496
 497     /* Prevent the default page-changing form-submission behavior. */
 498     event.preventDefault();
 499
 500     const response = await fetch_post_json(`answer/${this.props.prompt.id}`, {
 501       answers: this.answers.map(r => r.current.value)
 502     });
 503     if (response.status === 200) {
 504       const result = await response.json();
 505       if (! result.valid) {
 506         add_message("danger", result.message);
 507         return;
 508       }
 509     } else {
 510       add_message("danger", "An error occurred submitting your answers");
 511       return;
 512     }
 513
 514     /* Everything worked. Server is happy with our answers. */
 515     form.reset();
 516     this.setState({
 517         submitted: true
 518     });
 519   }
 520
 521   render() {
 522     if (this.state.submitted)
 523       return (
 524         <div className="please-wait">
 525           <h2>{this.props.players_answered}/
 526             {this.props.players_total} players have responded</h2>
 527           <p>
 528             Please wait for the rest of the players to submit their answers.
 529           </p>
 530         </div>
 531       );
 532
 533     return (
 534       <div className="active-prompt">
 535         <h2>The Game of Empathy</h2>
 536         <p>
 537           Remember, you're trying to match your answers with
 538           what the other players submit.
 539           Give {this.props.prompt.items} answers for the following prompt:
 540         </p>
 541         <h2>{this.props.prompt.prompt}</h2>
 542         <form onSubmit={this.handle_submit}>
 543           {[...Array(this.props.prompt.items)].map((whocares,i) => {
 544             return (
 545               <div
 546                 key={i}
 547                 className="form-field large">
 548                 <input
 549                   type="text"
 550                   name={`answer_${i}`}
 551                   required
 552                   autoComplete="off"
 553                   ref={this.answers[i]}
 554                 />
 555               </div>
 556             );
 557           })}
 558
 559           <div
 560             key="submit-button"
 561             className="form-field large">
 562             <button type="submit">
 563               Send
 564             </button>
 565           </div>
 566
 567         </form>
 568       </div>
 569     );
 570   }
 571 }
 572
 573 class Game extends React.PureComponent {
 574   constructor(props) {
 575     super(props);
 576     this.state = {
 577       game_info: {},
 578       player_info: {},
 579       other_players: [],
 580       prompts: [],
 581       active_prompt: null,
 582       players_answered: 0,
 583       ambiguities: null,
 584       players_judged: 0
 585     };
 586   }
 587
 588   set_game_info(info) {
 589     this.setState({
 590       game_info: info
 591     });
 592   }
 593
 594   set_player_info(info) {
 595     this.setState({
 596       player_info: info
 597     });
 598   }
 599
 600   set_other_player_info(info) {
 601     const other_players_copy = [...this.state.other_players];
 602     const idx = other_players_copy.findIndex(o => o.id === info.id);
 603     if (idx >= 0) {
 604       other_players_copy[idx] = info;
 605     } else {
 606       other_players_copy.push(info);
 607     }
 608     this.setState({
 609       other_players: other_players_copy
 610     });
 611   }
 612
 613   set_prompts(prompts) {
 614     this.setState({
 615       prompts: prompts
 616     });
 617   }
 618
 619   add_or_update_prompt(prompt) {
 620     const prompts_copy = [...this.state.prompts];
 621     const idx = prompts_copy.findIndex(p => p.id === prompt.id);
 622     if (idx >= 0) {
 623       prompts_copy[idx] = prompt;
 624     } else {
 625       prompts_copy.push(prompt);
 626     }
 627     this.setState({
 628       prompts: prompts_copy
 629     });
 630   }
 631
 632   set_active_prompt(prompt) {
 633     this.setState({
 634       active_prompt: prompt
 635     });
 636   }
 637
 638   set_players_answered(players_answered) {
 639     this.setState({
 640       players_answered: players_answered
 641     });
 642   }
 643
 644   set_ambiguities(ambiguities) {
 645     this.setState({
 646       ambiguities: ambiguities
 647     });
 648   }
 649
 650   set_players_judged(players_judged) {
 651     this.setState({
 652       players_judged: players_judged
 653     });
 654   }
 655
 656   set_scores(scores) {
 657     this.setState({
 658       scores: scores
 659     });
 660   }
 661
 662   render() {
 663     const state = this.state;
 664     const players_total = 1 + state.other_players.length;
 665
 666     if (state.scores) {
 667       return (
 668         <div className="scores">
 669           <h2>Scores</h2>
 670           <ul>
 671             {state.scores.scores.map(score => {
 672               return (
 673                 <li key={score.player}>
 674                   {score.player}: {score.score}
 675                 </li>
 676               );
 677             })}
 678           </ul>
 679           <h2>Words submitted</h2>
 680           <ul>
 681             {state.scores.words.map(word => {
 682               return (
 683                 <li key={word.word}>
 684                   {`${word.word}: ${word.players.join(', ')}`}
 685                 </li>
 686               );
 687             })}
 688           </ul>
 689           <button
 690             className="new-game"
 691             onClick={() => fetch_post_json('reset') }
 692           >
 693             New Game
 694           </button>
 695         </div>
 696       );
 697     }
 698
 699     if (state.ambiguities){
 700       return <Ambiguities
 701                prompt={state.active_prompt}
 702                words={state.ambiguities}
 703                players_judged={state.players_judged}
 704                players_total={players_total}
 705              />;
 706     }
 707
 708     if (state.active_prompt) {
 709       return <ActivePrompt
 710                prompt={state.active_prompt}
 711                players_answered={state.players_answered}
 712                players_total={players_total}
 713              />;
 714     }
 715
 716     return [
 717       <GameInfo
 718         key="game-info"
 719         id={state.game_info.id}
 720         url={state.game_info.url}
 721       />,
 722       <PlayerInfo
 723         key="player-info"
 724         game={this}
 725         player={state.player_info}
 726         other_players={state.other_players}
 727       />,
 728       <p key="spacer"></p>,
 729       <CategoryRequest
 730         key="category-request"
 731       />,
 732       <PromptOptions
 733         key="prompts"
 734         prompts={state.prompts}
 735       />,
 736       <LetsPlay
 737         key="lets-play"
 738         num_players={1+state.other_players.length}
 739         prompts={state.prompts}
 740       />
 741     ];
 742   }
 743 }
 744
 745 ReactDOM.render(<Game
 746                   ref={(me) => window.game = me}
 747                 />, document.getElementById("empathy"));