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.reset_game_state();
  61
  62   window.game.set_prompts(state.prompts);
  63
  64   window.game.set_active_prompt(state.active_prompt);
  65
  66   window.game.set_players_answered(state.players_answered);
  67
  68   window.game.set_players_answering(state.players_answering);
  69
  70   window.game.set_end_answers(state.end_answers);
  71
  72   window.game.set_ambiguities(state.ambiguities);
  73
  74   window.game.set_players_judged(state.players_judged);
  75
  76   window.game.set_players_judging(state.players_judging);
  77
  78   window.game.set_end_judging(state.end_judging);
  79
  80   window.game.set_scores(state.scores);
  81 });
  82
  83 events.addEventListener("prompt", event => {
  84   const prompt = JSON.parse(event.data);
  85
  86   window.game.add_or_update_prompt(prompt);
  87 });
  88
  89 events.addEventListener("start", event => {
  90   const prompt = JSON.parse(event.data);
  91
  92   window.game.set_active_prompt(prompt);
  93 });
  94
  95 events.addEventListener("player-answered", event => {
  96   const player = JSON.parse(event.data);
  97
  98   window.game.set_player_answered(player);
  99 });
 100
 101 events.addEventListener("player-answering", event => {
 102   const player = JSON.parse(event.data);
 103
 104   window.game.set_player_answering(player);
 105 });
 106
 107 events.addEventListener("vote-end-answers", event => {
 108   const player = JSON.parse(event.data);
 109
 110   window.game.set_player_vote_end_answers(player);
 111 });
 112
 113 events.addEventListener("unvote-end-answers", event => {
 114   const player = JSON.parse(event.data);
 115
 116   window.game.set_player_unvote_end_answers(player);
 117 });
 118
 119 events.addEventListener("ambiguities", event => {
 120   const ambiguities = JSON.parse(event.data);
 121
 122   window.game.set_ambiguities(ambiguities);
 123 });
 124
 125 events.addEventListener("player-judged", event => {
 126   const player = JSON.parse(event.data);
 127
 128   window.game.set_player_judged(player);
 129 });
 130
 131 events.addEventListener("player-judging", event => {
 132   const player = JSON.parse(event.data);
 133
 134   window.game.set_player_judging(player);
 135 });
 136
 137 events.addEventListener("vote-end-judging", event => {
 138   const player = JSON.parse(event.data);
 139
 140   window.game.set_player_vote_end_judging(player);
 141 });
 142
 143 events.addEventListener("unvote-end-judging", event => {
 144   const player = JSON.parse(event.data);
 145
 146   window.game.set_player_unvote_end_judging(player);
 147 });
 148
 149 events.addEventListener("scores", event => {
 150   const scores = JSON.parse(event.data);
 151
 152   window.game.set_scores(scores);
 153 });
 154
 155 /*********************************************************
 156  * Game and supporting classes                           *
 157  *********************************************************/
 158
 159 function copy_to_clipboard(id)
 160 {
 161   const tmp = document.createElement("input");
 162   tmp.setAttribute("value", document.getElementById(id).innerHTML);
 163   document.body.appendChild(tmp);
 164   tmp.select();
 165   document.execCommand("copy");
 166   document.body.removeChild(tmp);
 167 }
 168
 169 const GameInfo = React.memo(props => {
 170   if (! props.id)
 171     return null;
 172
 173   return (
 174     <div className="game-info">
 175       <span className="game-id">{props.id}</span>
 176       {" "}
 177       Share this link to invite friends:{" "}
 178       <span id="game-share-url">{props.url}</span>
 179       {" "}
 180       <button
 181         className="inline"
 182         onClick={() => copy_to_clipboard('game-share-url')}
 183       >Copy Link</button>
 184     </div>
 185   );
 186 });
 187
 188 const PlayerInfo = React.memo(props => {
 189   if (! props.player.id)
 190     return null;
 191
 192   return (
 193     <div className="player-info">
 194       <span className="players-header">Players: </span>
 195       {props.player.name}
 196       {props.player.score > 0 ? ` (${props.player.score})` : ""}
 197       {props.other_players.map(other => (
 198         <span key={other.id}>
 199           {", "}
 200           {other.name}
 201           {other.score > 0 ? ` (${other.score})` : ""}
 202         </span>
 203       ))}
 204     </div>
 205   );
 206 });
 207
 208 function fetch_method_json(method, api = '', data = {}) {
 209   const response = fetch(api, {
 210     method: method,
 211     headers: {
 212       'Content-Type': 'application/json'
 213     },
 214     body: JSON.stringify(data)
 215   });
 216   return response;
 217 }
 218
 219 function fetch_post_json(api = '', data = {}) {
 220   return fetch_method_json('POST', api, data);
 221 }
 222
 223 async function fetch_put_json(api = '', data = {}) {
 224   return fetch_method_json('PUT', api, data);
 225 }
 226
 227 class CategoryRequest extends React.PureComponent {
 228   constructor(props) {
 229     super(props);
 230     this.category = React.createRef();
 231
 232     this.handle_change = this.handle_change.bind(this);
 233     this.handle_submit = this.handle_submit.bind(this);
 234   }
 235
 236   handle_change(event) {
 237     const category_input = this.category.current;
 238     const category = category_input.value;
 239
 240     const match = category.match(/[0-9]+/);
 241     if (match) {
 242       const num_items = parseInt(match[0], 10);
 243       if (num_items <= MAX_PROMPT_ITEMS)
 244         category_input.setCustomValidity("");
 245     }
 246   }
 247
 248   async handle_submit(event) {
 249     const form = event.currentTarget;
 250     const category_input = this.category.current;
 251     const category = category_input.value;
 252
 253     /* Prevent the default page-changing form-submission behavior. */
 254     event.preventDefault();
 255
 256     const match = category.match(/[0-9]+/);
 257     if (match === null) {
 258       category_input.setCustomValidity("Category must include a number");
 259       form.reportValidity();
 260       return;
 261     }
 262
 263     const num_items = parseInt(match[0], 10);
 264
 265     if (num_items > MAX_PROMPT_ITEMS) {
 266       category_input.setCustomValidity(`Maximum number of items is ${MAX_PROMPT_ITEMS}`);
 267       form.reportValidity();
 268       return;
 269     }
 270
 271     const response = await fetch_post_json("prompts", {
 272       items: num_items,
 273       prompt: category
 274     });
 275
 276     if (response.status === 200) {
 277       const result = await response.json();
 278       if (! result.valid) {
 279         add_message("danger", result.message);
 280         return;
 281       }
 282     } else {
 283       add_message("danger", "An error occurred submitting your category");
 284     }
 285
 286     form.reset();
 287   }
 288
 289   render() {
 290     return (
 291       <div className="category-request">
 292         <h2>Submit a Category</h2>
 293         <p>
 294           Suggest a category to play. Don't forget to include the
 295           number of items for each person to submit.
 296         </p>
 297
 298         <form onSubmit={this.handle_submit} >
 299           <div className="form-field large">
 300             <input
 301               type="text"
 302               id="category"
 303               placeholder="6 things at the beach"
 304               required
 305               autoComplete="off"
 306               onChange={this.handle_change}
 307               ref={this.category}
 308             />
 309           </div>
 310
 311           <div className="form-field large">
 312             <button type="submit">
 313               Send
 314             </button>
 315           </div>
 316
 317         </form>
 318       </div>
 319     );
 320   }
 321 }
 322
 323 const PromptOptions = React.memo(props => {
 324
 325   if (props.prompts.length === 0)
 326     return null;
 327
 328   return (
 329     <div className="prompt-options">
 330       <h2>Vote on Categories</h2>
 331       <p>
 332         Select any categories below that you'd like to play.
 333         You can choose as many as you'd like.
 334       </p>
 335       {props.prompts.map(p => {
 336         return (
 337           <button
 338             className="vote-button"
 339             key={p.id}
 340             onClick={() => fetch_post_json(`vote/${p.id}`) }
 341           >
 342             {p.prompt}
 343             <div className="vote-choices">
 344               {p.votes.map(v => {
 345                 return (
 346                   <div
 347                     key={v}
 348                     className="vote-choice"
 349                   >
 350                     {v}
 351                   </div>
 352                 );
 353               })}
 354             </div>
 355           </button>
 356         );
 357       })}
 358     </div>
 359   );
 360 });
 361
 362 const LetsPlay = React.memo(props => {
 363
 364   const quorum = Math.round((props.num_players + 1) / 2);
 365   const max_votes = props.prompts.reduce(
 366     (max_so_far, v) => Math.max(max_so_far, v.votes.length), 0);
 367
 368   if (max_votes < quorum)
 369     return null;
 370
 371   const candidates = props.prompts.filter(p => p.votes.length >= quorum);
 372   const index = Math.floor(Math.random() * candidates.length);
 373   const winner = candidates[index];
 374
 375   return (
 376     <div className="lets-play">
 377       <h2>Let's Play</h2>
 378       <p>
 379         That should be enough voting. If you're not waiting for any
 380         other players to join, then let's start.
 381       </p>
 382       <button
 383         className="lets-play"
 384         onClick={() => fetch_post_json(`start/${winner.id}`) }
 385       >
 386         Start Game
 387       </button>
 388     </div>
 389   );
 390 });
 391
 392 class Ambiguities extends React.PureComponent {
 393
 394   constructor(props) {
 395     super(props);
 396
 397     const word_sets = props.words.map(word => {
 398       const set = new Set();
 399       set.add(word);
 400       return set;
 401     });
 402
 403     this.state = {
 404       word_sets: word_sets,
 405       submitted: false,
 406       selected: null
 407     };
 408
 409     this.judging_sent_recently = false;
 410   }
 411
 412   async handle_submit() {
 413     const response = await fetch_post_json(
 414       `judged/${this.props.prompt.id}`,{
 415         word_groups: this.state.word_sets.map(set => Array.from(set))
 416       }
 417     );
 418
 419     if (response.status === 200) {
 420       const result = await response.json();
 421       if (! result.valid) {
 422         add_message("danger", result.message);
 423         return;
 424       }
 425     } else {
 426       add_message("danger", "An error occurred submitting the results of your judging");
 427       return;
 428     }
 429
 430     this.setState({
 431       submitted: true
 432     });
 433   }
 434
 435   handle_click(word) {
 436
 437     /* Let the server know we are doing some judging, (but rate limit
 438      * this so we don't send a "judging" notification more frquently
 439      * than necessary.
 440      */
 441     if (! this.judging_sent_recently) {
 442       fetch_post_json(`judging/${this.props.prompt.id}`);
 443       this.judging_sent_recently = true;
 444       setTimeout(() => { this.judging_sent_recently = false; }, 1000);
 445     }
 446
 447     if (this.state.selected == word) {
 448       /* Second click on same word removes the word from the group. */
 449       const idx = this.state.word_sets.findIndex(s => s.has(word));
 450       const set = this.state.word_sets[idx];
 451       if (set.size === 1) {
 452         /* When the word is already alone, there's nothing to do but
 453          * to un-select it. */
 454         this.setState({
 455           selected: null
 456         });
 457         return;
 458       }
 459
 460       const new_set = new Set([...set].filter(w => w !== word));
 461       this.setState({
 462         selected: null,
 463         word_sets: [...this.state.word_sets.slice(0, idx),
 464                     new_set,
 465                     new Set().add(word),
 466                     ...this.state.word_sets.slice(idx+1)]
 467       });
 468     } else if (this.state.selected) {
 469       /* Click of a second word groups the two together. */
 470       const idx1 = this.state.word_sets.findIndex(s => s.has(this.state.selected));
 471       const idx2 = this.state.word_sets.findIndex(s => s.has(word));
 472       const set1 = this.state.word_sets[idx1];
 473       const set2 = this.state.word_sets[idx2];
 474       const new_set = new Set([...set2, ...set1]);
 475       if (idx1 < idx2) {
 476         this.setState({
 477           selected: null,
 478           word_sets: [...this.state.word_sets.slice(0, idx1),
 479                       ...this.state.word_sets.slice(idx1 + 1, idx2),
 480                       new_set,
 481                       ...this.state.word_sets.slice(idx2 + 1)]
 482         });
 483       } else {
 484         this.setState({
 485           selected: null,
 486           word_sets: [...this.state.word_sets.slice(0, idx2),
 487                       new_set,
 488                       ...this.state.word_sets.slice(idx2 + 1, idx1),
 489                       ...this.state.word_sets.slice(idx1 + 1)]
 490         });
 491       }
 492     } else {
 493       /* First click of a word selects it. */
 494       this.setState({
 495         selected: word
 496       });
 497     }
 498   }
 499
 500   render() {
 501     if (this.state.submitted)
 502       return (
 503         <div className="please-wait">
 504           <h2>Submission received</h2>
 505           <p>
 506             The following players have completed judging:
 507             {[...this.props.players_judged].join(', ')}
 508           </p>
 509           <p>
 510             Still waiting for the following players:
 511           </p>
 512           <ul>
 513             {Object.keys(this.props.players_judging).map(player => {
 514               return (
 515                 <li
 516                   key={player}
 517                 >
 518                   {player}
 519                   {this.props.players_judging[player] ?
 520                    <span className="typing"/> : null }
 521                 </li>
 522               );
 523             })}
 524           </ul>
 525           <button
 526             className="vote-button"
 527             onClick={() => fetch_post_json(`end-judging/${this.props.prompt.id}`) }
 528           >
 529             Move On
 530             <div className="vote-choices">
 531               {[...this.props.votes].map(v => {
 532                 return (
 533                   <div
 534                     key={v}
 535                     className="vote-choice"
 536                   >
 537                     {v}
 538                   </div>
 539                 );
 540               })}
 541             </div>
 542           </button>
 543
 544         </div>
 545       );
 546
 547     const btn_class = "ambiguity-button";
 548     const btn_selected_class = btn_class + " selected";
 549
 550     return (
 551       <div className="ambiguities">
 552         <h2>Judging Answers</h2>
 553         <p>
 554           Click on each pair of answers that should be scored as equivalent,
 555           (and click any word twice to split it out from a group). Remember,
 556           what goes around comes around, so it's best to be generous when
 557           judging.
 558         </p>
 559         {this.state.word_sets.map(set => {
 560           return (
 561             <div
 562               className="ambiguity-group"
 563               key={Array.from(set)[0]}
 564             >
 565               {Array.from(set).map(word => {
 566                 return (
 567                   <button
 568                     className={this.state.selected === word ?
 569                                btn_selected_class : btn_class }
 570                     key={word}
 571                     onClick={() => this.handle_click(word)}
 572                   >
 573                     {word}
 574                   </button>
 575                 );
 576               })}
 577             </div>
 578           );
 579         })}
 580         <p>
 581           Click here when done judging:<br/>
 582           <button
 583             onClick={() => this.handle_submit()}
 584           >
 585             Send
 586           </button>
 587         </p>
 588       </div>
 589     );
 590   }
 591 }
 592
 593 class ActivePrompt extends React.PureComponent {
 594
 595   constructor(props) {
 596     super(props);
 597     const items = props.prompt.items;
 598
 599     this.state = {
 600       submitted: false
 601     };
 602
 603     this.answers = [...Array(items)].map(() => React.createRef());
 604     this.answering_sent_recently = false;
 605
 606     this.handle_submit = this.handle_submit.bind(this);
 607     this.handle_change = this.handle_change.bind(this);
 608   }
 609
 610   handle_change(event) {
 611     /* We don't care (or even look) at what the player is typing at
 612      * this point. We simply want to be informed that the player _is_
 613      * typing so that we can tell the server (which will tell other
 614      * players) that there is activity here.
 615      */
 616
 617     /* Rate limit so that we don't send an "answering" notification
 618      * more frequently than necessary.
 619      */
 620     if (! this.answering_sent_recently) {
 621       fetch_post_json(`answering/${this.props.prompt.id}`);
 622       this.answering_sent_recently = true;
 623       setTimeout(() => { this.answering_sent_recently = false; }, 1000);
 624     }
 625   }
 626
 627   async handle_submit(event) {
 628     const form = event.currentTarget;
 629
 630     /* Prevent the default page-changing form-submission behavior. */
 631     event.preventDefault();
 632
 633     const response = await fetch_post_json(`answer/${this.props.prompt.id}`, {
 634       answers: this.answers.map(r => r.current.value)
 635     });
 636     if (response.status === 200) {
 637       const result = await response.json();
 638       if (! result.valid) {
 639         add_message("danger", result.message);
 640         return;
 641       }
 642     } else {
 643       add_message("danger", "An error occurred submitting your answers");
 644       return;
 645     }
 646
 647     /* Everything worked. Server is happy with our answers. */
 648     form.reset();
 649     this.setState({
 650         submitted: true
 651     });
 652   }
 653
 654   render() {
 655     if (this.state.submitted)
 656       return (
 657         <div className="please-wait">
 658           <h2>Submission received</h2>
 659           <p>
 660             The following players have submitted their answers:
 661             {[...this.props.players_answered].join(', ')}
 662           </p>
 663           <p>
 664           Still waiting for the following players:
 665           </p>
 666           <ul>
 667             {Object.keys(this.props.players_answering).map(player => {
 668               return (
 669                 <li
 670                   key={player}
 671                 >
 672                   {player}
 673                   {this.props.players_answering[player] ?
 674                    <span className="typing"/> : null }
 675                 </li>
 676               );
 677             })}
 678           </ul>
 679           <button
 680             className="vote-button"
 681             onClick={() => fetch_post_json(`end-answers/${this.props.prompt.id}`) }
 682           >
 683             Move On
 684             <div className="vote-choices">
 685               {[...this.props.votes].map(v => {
 686                 return (
 687                   <div
 688                     key={v}
 689                     className="vote-choice"
 690                   >
 691                     {v}
 692                   </div>
 693                 );
 694               })}
 695             </div>
 696           </button>
 697
 698         </div>
 699       );
 700
 701     return (
 702       <div className="active-prompt">
 703         <h2>The Game of Empathy</h2>
 704         <p>
 705           Remember, you're trying to match your answers with
 706           what the other players submit.
 707           Give {this.props.prompt.items} answers for the following prompt:
 708         </p>
 709         <h2>{this.props.prompt.prompt}</h2>
 710         <form onSubmit={this.handle_submit}>
 711           {[...Array(this.props.prompt.items)].map((whocares,i) => {
 712             return (
 713               <div
 714                 key={i}
 715                 className="form-field large">
 716                 <input
 717                   type="text"
 718                   name={`answer_${i}`}
 719                   required
 720                   autoComplete="off"
 721                   onChange={this.handle_change}
 722                   ref={this.answers[i]}
 723                 />
 724               </div>
 725             );
 726           })}
 727
 728           <div
 729             key="submit-button"
 730             className="form-field large">
 731             <button type="submit">
 732               Send
 733             </button>
 734           </div>
 735
 736         </form>
 737       </div>
 738     );
 739   }
 740 }
 741
 742 class Game extends React.PureComponent {
 743   constructor(props) {
 744     super(props);
 745     this.state = {
 746       game_info: {},
 747       player_info: {},
 748       other_players: [],
 749       prompts: [],
 750       active_prompt: null,
 751       players_answered: new Set(),
 752       players_answering: {},
 753       end_answers_votes: new Set(),
 754       ambiguities: null,
 755       players_judged: new Set(),
 756       players_judging: {},
 757       end_judging_votes: new Set(),
 758       scores: null
 759     };
 760   }
 761
 762   set_game_info(info) {
 763     this.setState({
 764       game_info: info
 765     });
 766   }
 767
 768   set_player_info(info) {
 769     this.setState({
 770       player_info: info
 771     });
 772   }
 773
 774   set_other_player_info(info) {
 775     const other_players_copy = [...this.state.other_players];
 776     const idx = other_players_copy.findIndex(o => o.id === info.id);
 777     if (idx >= 0) {
 778       other_players_copy[idx] = info;
 779     } else {
 780       other_players_copy.push(info);
 781     }
 782     this.setState({
 783       other_players: other_players_copy
 784     });
 785   }
 786
 787   reset_game_state() {
 788     this.setState({
 789       prompts: [],
 790       active_prompt: null,
 791       players_answered: new Set(),
 792       players_answering: {},
 793       end_answers_votes: new Set(),
 794       ambiguities: null,
 795       players_judged: new Set(),
 796       players_judging: {},
 797       end_judging_votes: new Set(),
 798       scores: null
 799     });
 800   }
 801
 802   set_prompts(prompts) {
 803     this.setState({
 804       prompts: prompts
 805     });
 806   }
 807
 808   add_or_update_prompt(prompt) {
 809     const prompts_copy = [...this.state.prompts];
 810     const idx = prompts_copy.findIndex(p => p.id === prompt.id);
 811     if (idx >= 0) {
 812       prompts_copy[idx] = prompt;
 813     } else {
 814       prompts_copy.push(prompt);
 815     }
 816     this.setState({
 817       prompts: prompts_copy
 818     });
 819   }
 820
 821   set_active_prompt(prompt) {
 822     this.setState({
 823       active_prompt: prompt
 824     });
 825   }
 826
 827   set_players_answered(players) {
 828     this.setState({
 829       players_answered: new Set(players)
 830     });
 831   }
 832
 833   set_player_answered(player) {
 834     const new_players_answering = {...this.state.players_answering};
 835     delete new_players_answering[player];
 836
 837     this.setState({
 838       players_answered: new Set([...this.state.players_answered, player]),
 839       players_answering: new_players_answering
 840     });
 841   }
 842
 843   set_players_answering(players) {
 844     const players_answering = {};
 845     for (let player of players) {
 846       players_answering[player] = {active: false};
 847     }
 848     this.setState({
 849       players_answering: players_answering
 850     });
 851   }
 852
 853   set_player_answering(player) {
 854     this.setState({
 855       players_answering: {
 856         ...this.state.players_answering,
 857         [player]: {active: true}
 858       }
 859     });
 860   }
 861
 862   set_end_answers(players) {
 863     this.setState({
 864       end_answers_votes: new Set(players)
 865     });
 866   }
 867
 868   set_player_vote_end_answers(player) {
 869     this.setState({
 870       end_answers_votes: new Set([...this.state.end_answers_votes, player])
 871     });
 872   }
 873
 874   set_player_unvote_end_answers(player) {
 875     this.setState({
 876       end_answers_votes: new Set([...this.state.end_answers_votes].filter(p => p !== player))
 877     });
 878   }
 879
 880   set_ambiguities(ambiguities) {
 881     this.setState({
 882       ambiguities: ambiguities
 883     });
 884   }
 885
 886   set_players_judged(players) {
 887     this.setState({
 888       players_judged: new Set(players)
 889     });
 890   }
 891
 892   set_player_judged(player) {
 893     const new_players_judging = {...this.state.players_judging};
 894     delete new_players_judging[player];
 895
 896     this.setState({
 897       players_judged: new Set([...this.state.players_judged, player]),
 898       players_judging: new_players_judging
 899     });
 900   }
 901
 902   set_players_judging(players) {
 903     const players_judging = {};
 904     for (let player of players) {
 905       players_judging[player] = {active: false};
 906     }
 907     this.setState({
 908       players_judging: players_judging
 909     });
 910   }
 911
 912   set_player_judging(player) {
 913     this.setState({
 914       players_judging: {
 915         ...this.state.players_judging,
 916         [player]: {active: true}
 917       }
 918     });
 919   }
 920
 921   set_end_judging(players) {
 922     this.setState({
 923       end_judging_votes: new Set(players)
 924     });
 925   }
 926
 927   set_player_vote_end_judging(player) {
 928     this.setState({
 929       end_judging_votes: new Set([...this.state.end_judging_votes, player])
 930     });
 931   }
 932
 933   set_player_unvote_end_judging(player) {
 934     this.setState({
 935       end_judging_votes: new Set([...this.state.end_judging_votes].filter(p => p !== player))
 936     });
 937   }
 938
 939   set_scores(scores) {
 940     this.setState({
 941       scores: scores
 942     });
 943   }
 944
 945   render() {
 946     const state = this.state;
 947     const players_total = 1 + state.other_players.length;
 948
 949     if (state.scores) {
 950       return (
 951         <div className="scores">
 952           <h2>Scores</h2>
 953           <ul>
 954             {state.scores.scores.map(score => {
 955               return (
 956                 <li key={score.player}>
 957                   {score.player}: {score.score}
 958                 </li>
 959               );
 960             })}
 961           </ul>
 962           <h2>Words submitted</h2>
 963           <ul>
 964             {state.scores.words.map(word => {
 965               return (
 966                 <li key={word.word}>
 967                   {`${word.word}: ${word.players.join(', ')}`}
 968                 </li>
 969               );
 970             })}
 971           </ul>
 972           <button
 973             className="new-game"
 974             onClick={() => fetch_post_json('reset') }
 975           >
 976             New Game
 977           </button>
 978         </div>
 979       );
 980     }
 981
 982     if (state.ambiguities){
 983       return <Ambiguities
 984                prompt={state.active_prompt}
 985                words={state.ambiguities}
 986                players_judged={state.players_judged}
 987                players_judging={state.players_judging}
 988                votes={state.end_judging_votes}
 989              />;
 990     }
 991
 992     if (state.active_prompt) {
 993       return <ActivePrompt
 994                prompt={state.active_prompt}
 995                players_answered={state.players_answered}
 996                players_answering={state.players_answering}
 997                votes={state.end_answers_votes}
 998              />;
 999     }
1000
1001     return [
1002       <GameInfo
1003         key="game-info"
1004         id={state.game_info.id}
1005         url={state.game_info.url}
1006       />,
1007       <PlayerInfo
1008         key="player-info"
1009         game={this}
1010         player={state.player_info}
1011         other_players={state.other_players}
1012       />,
1013       <p key="spacer"></p>,
1014       <CategoryRequest
1015         key="category-request"
1016       />,
1017       <PromptOptions
1018         key="prompts"
1019         prompts={state.prompts}
1020       />,
1021       <LetsPlay
1022         key="lets-play"
1023         num_players={1+state.other_players.length}
1024         prompts={state.prompts}
1025       />
1026     ];
1027   }
1028 }
1029
1030 ReactDOM.render(<Game
1031                   ref={(me) => window.game = me}
1032                 />, document.getElementById("empathy"));