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_answering_idle(state.answering_idle);
  71
  72   window.game.set_end_answers(state.end_answers);
  73
  74   window.game.set_ambiguities(state.ambiguities);
  75
  76   window.game.set_players_judged(state.players_judged);
  77
  78   window.game.set_players_judging(state.players_judging);
  79
  80   window.game.set_end_judging(state.end_judging);
  81
  82   window.game.set_scores(state.scores);
  83 });
  84
  85 events.addEventListener("prompt", event => {
  86   const prompt = JSON.parse(event.data);
  87
  88   window.game.add_or_update_prompt(prompt);
  89 });
  90
  91 events.addEventListener("start", event => {
  92   const prompt = JSON.parse(event.data);
  93
  94   window.game.set_active_prompt(prompt);
  95 });
  96
  97 events.addEventListener("player-answered", event => {
  98   const player = JSON.parse(event.data);
  99
 100   window.game.set_player_answered(player);
 101 });
 102
 103 events.addEventListener("player-answering", event => {
 104   const player = JSON.parse(event.data);
 105
 106   window.game.set_player_answering(player);
 107 });
 108
 109 events.addEventListener("answering-idle", event => {
 110   const value = JSON.parse(event.data);
 111
 112   window.game.set_answering_idle(value);
 113 });
 114
 115 events.addEventListener("vote-end-answers", event => {
 116   const player = JSON.parse(event.data);
 117
 118   window.game.set_player_vote_end_answers(player);
 119 });
 120
 121 events.addEventListener("unvote-end-answers", event => {
 122   const player = JSON.parse(event.data);
 123
 124   window.game.set_player_unvote_end_answers(player);
 125 });
 126
 127 events.addEventListener("ambiguities", event => {
 128   const ambiguities = JSON.parse(event.data);
 129
 130   window.game.set_ambiguities(ambiguities);
 131 });
 132
 133 events.addEventListener("player-judged", event => {
 134   const player = JSON.parse(event.data);
 135
 136   window.game.set_player_judged(player);
 137 });
 138
 139 events.addEventListener("player-judging", event => {
 140   const player = JSON.parse(event.data);
 141
 142   window.game.set_player_judging(player);
 143 });
 144
 145 events.addEventListener("vote-end-judging", event => {
 146   const player = JSON.parse(event.data);
 147
 148   window.game.set_player_vote_end_judging(player);
 149 });
 150
 151 events.addEventListener("unvote-end-judging", event => {
 152   const player = JSON.parse(event.data);
 153
 154   window.game.set_player_unvote_end_judging(player);
 155 });
 156
 157 events.addEventListener("scores", event => {
 158   const scores = JSON.parse(event.data);
 159
 160   window.game.set_scores(scores);
 161 });
 162
 163 /*********************************************************
 164  * Game and supporting classes                           *
 165  *********************************************************/
 166
 167 function copy_to_clipboard(id)
 168 {
 169   const tmp = document.createElement("input");
 170   tmp.setAttribute("value", document.getElementById(id).innerHTML);
 171   document.body.appendChild(tmp);
 172   tmp.select();
 173   document.execCommand("copy");
 174   document.body.removeChild(tmp);
 175 }
 176
 177 const GameInfo = React.memo(props => {
 178   if (! props.id)
 179     return null;
 180
 181   return (
 182     <div className="game-info">
 183       <span className="game-id">{props.id}</span>
 184       {" "}
 185       Share this link to invite friends:{" "}
 186       <span id="game-share-url">{props.url}</span>
 187       {" "}
 188       <button
 189         className="inline"
 190         onClick={() => copy_to_clipboard('game-share-url')}
 191       >Copy Link</button>
 192     </div>
 193   );
 194 });
 195
 196 const PlayerInfo = React.memo(props => {
 197   if (! props.player.id)
 198     return null;
 199
 200   return (
 201     <div className="player-info">
 202       <span className="players-header">Players: </span>
 203       {props.player.name}
 204       {props.player.score > 0 ? ` (${props.player.score})` : ""}
 205       {props.other_players.map(other => (
 206         <span key={other.id}>
 207           {", "}
 208           {other.name}
 209           {other.score > 0 ? ` (${other.score})` : ""}
 210         </span>
 211       ))}
 212     </div>
 213   );
 214 });
 215
 216 function fetch_method_json(method, api = '', data = {}) {
 217   const response = fetch(api, {
 218     method: method,
 219     headers: {
 220       'Content-Type': 'application/json'
 221     },
 222     body: JSON.stringify(data)
 223   });
 224   return response;
 225 }
 226
 227 function fetch_post_json(api = '', data = {}) {
 228   return fetch_method_json('POST', api, data);
 229 }
 230
 231 async function fetch_put_json(api = '', data = {}) {
 232   return fetch_method_json('PUT', api, data);
 233 }
 234
 235 class CategoryRequest extends React.PureComponent {
 236   constructor(props) {
 237     super(props);
 238     this.category = React.createRef();
 239
 240     this.handle_change = this.handle_change.bind(this);
 241     this.handle_submit = this.handle_submit.bind(this);
 242   }
 243
 244   handle_change(event) {
 245     const category_input = this.category.current;
 246     const category = category_input.value;
 247
 248     const match = category.match(/[0-9]+/);
 249     if (match) {
 250       const num_items = parseInt(match[0], 10);
 251       if (num_items <= MAX_PROMPT_ITEMS)
 252         category_input.setCustomValidity("");
 253     }
 254   }
 255
 256   async handle_submit(event) {
 257     const form = event.currentTarget;
 258     const category_input = this.category.current;
 259     const category = category_input.value;
 260
 261     /* Prevent the default page-changing form-submission behavior. */
 262     event.preventDefault();
 263
 264     const match = category.match(/[0-9]+/);
 265     if (match === null) {
 266       category_input.setCustomValidity("Category must include a number");
 267       form.reportValidity();
 268       return;
 269     }
 270
 271     const num_items = parseInt(match[0], 10);
 272
 273     if (num_items > MAX_PROMPT_ITEMS) {
 274       category_input.setCustomValidity(`Maximum number of items is ${MAX_PROMPT_ITEMS}`);
 275       form.reportValidity();
 276       return;
 277     }
 278
 279     const response = await fetch_post_json("prompts", {
 280       items: num_items,
 281       prompt: category
 282     });
 283
 284     if (response.status === 200) {
 285       const result = await response.json();
 286       if (! result.valid) {
 287         add_message("danger", result.message);
 288         return;
 289       }
 290     } else {
 291       add_message("danger", "An error occurred submitting your category");
 292     }
 293
 294     form.reset();
 295   }
 296
 297   render() {
 298     return (
 299       <div className="category-request">
 300         <h2>Submit a Category</h2>
 301         <p>
 302           Suggest a category to play. Don't forget to include the
 303           number of items for each person to submit.
 304         </p>
 305
 306         <form onSubmit={this.handle_submit} >
 307           <div className="form-field large">
 308             <input
 309               type="text"
 310               id="category"
 311               placeholder="6 things at the beach"
 312               required
 313               autoComplete="off"
 314               onChange={this.handle_change}
 315               ref={this.category}
 316             />
 317           </div>
 318
 319           <div className="form-field large">
 320             <button type="submit">
 321               Send
 322             </button>
 323           </div>
 324
 325         </form>
 326       </div>
 327     );
 328   }
 329 }
 330
 331 const PromptOptions = React.memo(props => {
 332
 333   if (props.prompts.length === 0)
 334     return null;
 335
 336   return (
 337     <div className="prompt-options">
 338       <h2>Vote on Categories</h2>
 339       <p>
 340         Select any categories below that you'd like to play.
 341         You can choose as many as you'd like.
 342       </p>
 343       {props.prompts.map(p => {
 344         return (
 345           <button
 346             className="vote-button"
 347             key={p.id}
 348             onClick={() => fetch_post_json(`vote/${p.id}`) }
 349           >
 350             {p.prompt}
 351             <div className="vote-choices">
 352               {p.votes.map(v => {
 353                 return (
 354                   <div
 355                     key={v}
 356                     className="vote-choice"
 357                   >
 358                     {v}
 359                   </div>
 360                 );
 361               })}
 362             </div>
 363           </button>
 364         );
 365       })}
 366     </div>
 367   );
 368 });
 369
 370 const LetsPlay = React.memo(props => {
 371
 372   const quorum = Math.round((props.num_players + 1) / 2);
 373   const max_votes = props.prompts.reduce(
 374     (max_so_far, v) => Math.max(max_so_far, v.votes.length), 0);
 375
 376   if (max_votes < quorum)
 377     return null;
 378
 379   const candidates = props.prompts.filter(p => p.votes.length >= quorum);
 380   const index = Math.floor(Math.random() * candidates.length);
 381   const winner = candidates[index];
 382
 383   return (
 384     <div className="lets-play">
 385       <h2>Let's Play</h2>
 386       <p>
 387         That should be enough voting. If you're not waiting for any
 388         other players to join, then let's start.
 389       </p>
 390       <button
 391         className="lets-play"
 392         onClick={() => fetch_post_json(`start/${winner.id}`) }
 393       >
 394         Start Game
 395       </button>
 396     </div>
 397   );
 398 });
 399
 400 class Ambiguities extends React.PureComponent {
 401
 402   constructor(props) {
 403     super(props);
 404
 405     const word_sets = props.words.map(word => {
 406       const set = new Set();
 407       set.add(word);
 408       return set;
 409     });
 410
 411     this.state = {
 412       word_sets: word_sets,
 413       selected: null
 414     };
 415
 416     this.submitted = false;
 417     this.judging_sent_recently = false;
 418   }
 419
 420   async handle_submit() {
 421
 422     /* Don't submit a second time. */
 423     if (this.submitted)
 424       return;
 425
 426     const response = await fetch_post_json(
 427       `judged/${this.props.prompt.id}`,{
 428         word_groups: this.state.word_sets.map(set => Array.from(set))
 429       }
 430     );
 431
 432     if (response.status === 200) {
 433       const result = await response.json();
 434       if (! result.valid) {
 435         add_message("danger", result.message);
 436         return;
 437       }
 438     } else {
 439       add_message("danger", "An error occurred submitting the results of your judging");
 440       return;
 441     }
 442
 443     this.submitted = true;
 444   }
 445
 446   handle_click(word) {
 447
 448     /* Let the server know we are doing some judging, (but rate limit
 449      * this so we don't send a "judging" notification more frquently
 450      * than necessary.
 451      */
 452     if (! this.judging_sent_recently) {
 453       fetch_post_json(`judging/${this.props.prompt.id}`);
 454       this.judging_sent_recently = true;
 455       setTimeout(() => { this.judging_sent_recently = false; }, 1000);
 456     }
 457
 458     if (this.state.selected == word) {
 459       /* Second click on same word removes the word from the group. */
 460       const idx = this.state.word_sets.findIndex(s => s.has(word));
 461       const set = this.state.word_sets[idx];
 462       if (set.size === 1) {
 463         /* When the word is already alone, there's nothing to do but
 464          * to un-select it. */
 465         this.setState({
 466           selected: null
 467         });
 468         return;
 469       }
 470
 471       const new_set = new Set([...set].filter(w => w !== word));
 472       this.setState({
 473         selected: null,
 474         word_sets: [...this.state.word_sets.slice(0, idx),
 475                     new_set,
 476                     new Set().add(word),
 477                     ...this.state.word_sets.slice(idx+1)]
 478       });
 479     } else if (this.state.selected) {
 480       /* Click of a second word groups the two together. */
 481       const idx1 = this.state.word_sets.findIndex(s => s.has(this.state.selected));
 482       const idx2 = this.state.word_sets.findIndex(s => s.has(word));
 483       const set1 = this.state.word_sets[idx1];
 484       const set2 = this.state.word_sets[idx2];
 485       const new_set = new Set([...set2, ...set1]);
 486       if (idx1 < idx2) {
 487         this.setState({
 488           selected: null,
 489           word_sets: [...this.state.word_sets.slice(0, idx1),
 490                       ...this.state.word_sets.slice(idx1 + 1, idx2),
 491                       new_set,
 492                       ...this.state.word_sets.slice(idx2 + 1)]
 493         });
 494       } else {
 495         this.setState({
 496           selected: null,
 497           word_sets: [...this.state.word_sets.slice(0, idx2),
 498                       new_set,
 499                       ...this.state.word_sets.slice(idx2 + 1, idx1),
 500                       ...this.state.word_sets.slice(idx1 + 1)]
 501         });
 502       }
 503     } else {
 504       /* First click of a word selects it. */
 505       this.setState({
 506         selected: word
 507       });
 508     }
 509   }
 510
 511   render() {
 512     if (this.props.players_judged.has(this.props.player.name)) {
 513       return (
 514         <div className="please-wait">
 515           <h2>Submission received</h2>
 516           <p>
 517             The following players have completed judging:
 518             {[...this.props.players_judged].join(', ')}
 519           </p>
 520           <p>
 521             Still waiting for the following players:
 522           </p>
 523           <ul>
 524             {Object.keys(this.props.players_judging).map(player => {
 525               return (
 526                 <li
 527                   key={player}
 528                 >
 529                   {player}
 530                   {this.props.players_judging[player] ?
 531                    <span className="typing"/> : null }
 532                 </li>
 533               );
 534             })}
 535           </ul>
 536           <button
 537             className="vote-button"
 538             onClick={() => fetch_post_json(`end-judging/${this.props.prompt.id}`) }
 539           >
 540             Move On
 541             <div className="vote-choices">
 542               {[...this.props.votes].map(v => {
 543                 return (
 544                   <div
 545                     key={v}
 546                     className="vote-choice"
 547                   >
 548                     {v}
 549                   </div>
 550                 );
 551               })}
 552             </div>
 553           </button>
 554
 555         </div>
 556       );
 557     }
 558
 559     const btn_class = "ambiguity-button";
 560     const btn_selected_class = btn_class + " selected";
 561
 562     return (
 563       <div className="ambiguities">
 564         <h2>Judging Answers</h2>
 565         <p>
 566           Click on each pair of answers that should be scored as equivalent,
 567           (and click any word twice to split it out from a group). Remember,
 568           what goes around comes around, so it's best to be generous when
 569           judging.
 570         </p>
 571         {this.state.word_sets.map(set => {
 572           return (
 573             <div
 574               className="ambiguity-group"
 575               key={Array.from(set)[0]}
 576             >
 577               {Array.from(set).map(word => {
 578                 return (
 579                   <button
 580                     className={this.state.selected === word ?
 581                                btn_selected_class : btn_class }
 582                     key={word}
 583                     onClick={() => this.handle_click(word)}
 584                   >
 585                     {word}
 586                   </button>
 587                 );
 588               })}
 589             </div>
 590           );
 591         })}
 592         <p>
 593           Click here when done judging:<br/>
 594           <button
 595             onClick={() => this.handle_submit()}
 596           >
 597             Send
 598           </button>
 599         </p>
 600       </div>
 601     );
 602   }
 603 }
 604
 605 class ActivePrompt extends React.PureComponent {
 606
 607   constructor(props) {
 608     super(props);
 609     const items = props.prompt.items;
 610
 611     this.submitted = false;
 612
 613     this.answers = [...Array(items)].map(() => React.createRef());
 614     this.answering_sent_recently = false;
 615
 616     this.handle_submit = this.handle_submit.bind(this);
 617     this.handle_change = this.handle_change.bind(this);
 618   }
 619
 620   handle_change(event) {
 621     /* We don't care (or even look) at what the player is typing at
 622      * this point. We simply want to be informed that the player _is_
 623      * typing so that we can tell the server (which will tell other
 624      * players) that there is activity here.
 625      */
 626
 627     /* Rate limit so that we don't send an "answering" notification
 628      * more frequently than necessary.
 629      */
 630     if (! this.answering_sent_recently) {
 631       fetch_post_json(`answering/${this.props.prompt.id}`);
 632       this.answering_sent_recently = true;
 633       setTimeout(() => { this.answering_sent_recently = false; }, 1000);
 634     }
 635   }
 636
 637   async handle_submit(event) {
 638     const form = event.currentTarget;
 639
 640     /* Prevent the default page-changing form-submission behavior. */
 641     event.preventDefault();
 642
 643     /* And don't submit a second time. */
 644     if (this.submitted)
 645       return;
 646
 647     const response = await fetch_post_json(`answer/${this.props.prompt.id}`, {
 648       answers: this.answers.map(r => r.current.value)
 649     });
 650     if (response.status === 200) {
 651       const result = await response.json();
 652       if (! result.valid) {
 653         add_message("danger", result.message);
 654         return;
 655       }
 656     } else {
 657       add_message("danger", "An error occurred submitting your answers");
 658       return;
 659     }
 660
 661     /* Everything worked. Server is happy with our answers. */
 662     form.reset();
 663     this.submitted = true;
 664   }
 665
 666   render() {
 667     let move_on_button = null;
 668     if (this.props.idle) {
 669       move_on_button =(
 670         <button
 671           className="vote-button"
 672           onClick={() => fetch_post_json(`end-answers/${this.props.prompt.id}`) }
 673         >
 674           Move On
 675           <div className="vote-choices">
 676             {[...this.props.votes].map(v => {
 677               return (
 678                 <div
 679                   key={v}
 680                   className="vote-choice"
 681                 >
 682                   {v}
 683                 </div>
 684               );
 685             })}
 686           </div>
 687         </button>
 688       );
 689     }
 690
 691     if (this.props.players_answered.has(this.props.player.name)) {
 692       return (
 693         <div className="please-wait">
 694           <h2>Submission received</h2>
 695           <p>
 696             The following players have submitted their answers:
 697             {[...this.props.players_answered].join(', ')}
 698           </p>
 699           <p>
 700           Still waiting for the following players:
 701           </p>
 702           <ul>
 703             {Object.keys(this.props.players_answering).map(player => {
 704               return (
 705                 <li
 706                   key={player}
 707                 >
 708                   {player}
 709                   {this.props.players_answering[player] ?
 710                    <span className="typing"/> : null }
 711                 </li>
 712               );
 713             })}
 714           </ul>
 715           {move_on_button}
 716
 717         </div>
 718       );
 719     }
 720
 721     return (
 722       <div className="active-prompt">
 723         <h2>The Game of Empathy</h2>
 724         <p>
 725           Remember, you're trying to match your answers with
 726           what the other players submit.
 727           Give {this.props.prompt.items} answers for the following prompt:
 728         </p>
 729         <h2>{this.props.prompt.prompt}</h2>
 730         <form onSubmit={this.handle_submit}>
 731           {[...Array(this.props.prompt.items)].map((whocares,i) => {
 732             return (
 733               <div
 734                 key={i}
 735                 className="form-field large">
 736                 <input
 737                   type="text"
 738                   name={`answer_${i}`}
 739                   required
 740                   autoComplete="off"
 741                   onChange={this.handle_change}
 742                   ref={this.answers[i]}
 743                 />
 744               </div>
 745             );
 746           })}
 747
 748           <div
 749             key="submit-button"
 750             className="form-field large">
 751             <button type="submit">
 752               Send
 753             </button>
 754           </div>
 755
 756         </form>
 757       </div>
 758     );
 759   }
 760 }
 761
 762 class Game extends React.PureComponent {
 763   constructor(props) {
 764     super(props);
 765     this.state = {
 766       game_info: {},
 767       player_info: {},
 768       other_players: [],
 769       prompts: [],
 770       active_prompt: null,
 771       players_answered: new Set(),
 772       players_answering: {},
 773       answering_idle: false,
 774       end_answers_votes: new Set(),
 775       ambiguities: null,
 776       players_judged: new Set(),
 777       players_judging: {},
 778       end_judging_votes: new Set(),
 779       scores: null
 780     };
 781   }
 782
 783   set_game_info(info) {
 784     this.setState({
 785       game_info: info
 786     });
 787   }
 788
 789   set_player_info(info) {
 790     this.setState({
 791       player_info: info
 792     });
 793   }
 794
 795   set_other_player_info(info) {
 796     const other_players_copy = [...this.state.other_players];
 797     const idx = other_players_copy.findIndex(o => o.id === info.id);
 798     if (idx >= 0) {
 799       other_players_copy[idx] = info;
 800     } else {
 801       other_players_copy.push(info);
 802     }
 803     this.setState({
 804       other_players: other_players_copy
 805     });
 806   }
 807
 808   reset_game_state() {
 809     this.setState({
 810       prompts: [],
 811       active_prompt: null,
 812       players_answered: new Set(),
 813       players_answering: {},
 814       answering_idle: false,
 815       end_answers_votes: new Set(),
 816       ambiguities: null,
 817       players_judged: new Set(),
 818       players_judging: {},
 819       end_judging_votes: new Set(),
 820       scores: null
 821     });
 822   }
 823
 824   set_prompts(prompts) {
 825     this.setState({
 826       prompts: prompts
 827     });
 828   }
 829
 830   add_or_update_prompt(prompt) {
 831     const prompts_copy = [...this.state.prompts];
 832     const idx = prompts_copy.findIndex(p => p.id === prompt.id);
 833     if (idx >= 0) {
 834       prompts_copy[idx] = prompt;
 835     } else {
 836       prompts_copy.push(prompt);
 837     }
 838     this.setState({
 839       prompts: prompts_copy
 840     });
 841   }
 842
 843   set_active_prompt(prompt) {
 844     this.setState({
 845       active_prompt: prompt
 846     });
 847   }
 848
 849   set_players_answered(players) {
 850     this.setState({
 851       players_answered: new Set(players)
 852     });
 853   }
 854
 855   set_player_answered(player) {
 856     const new_players_answering = {...this.state.players_answering};
 857     delete new_players_answering[player];
 858
 859     this.setState({
 860       players_answered: new Set([...this.state.players_answered, player]),
 861       players_answering: new_players_answering
 862     });
 863   }
 864
 865   set_players_answering(players) {
 866     const players_answering = {};
 867     for (let player of players) {
 868       players_answering[player] = {active: false};
 869     }
 870     this.setState({
 871       players_answering: players_answering
 872     });
 873   }
 874
 875   set_player_answering(player) {
 876     this.setState({
 877       players_answering: {
 878         ...this.state.players_answering,
 879         [player]: {active: true}
 880       }
 881     });
 882   }
 883
 884   set_answering_idle(value) {
 885     this.setState({
 886       answering_idle: value
 887     });
 888   }
 889
 890   set_end_answers(players) {
 891     this.setState({
 892       end_answers_votes: new Set(players)
 893     });
 894   }
 895
 896   set_player_vote_end_answers(player) {
 897     this.setState({
 898       end_answers_votes: new Set([...this.state.end_answers_votes, player])
 899     });
 900   }
 901
 902   set_player_unvote_end_answers(player) {
 903     this.setState({
 904       end_answers_votes: new Set([...this.state.end_answers_votes].filter(p => p !== player))
 905     });
 906   }
 907
 908   set_ambiguities(ambiguities) {
 909     this.setState({
 910       ambiguities: ambiguities
 911     });
 912   }
 913
 914   set_players_judged(players) {
 915     this.setState({
 916       players_judged: new Set(players)
 917     });
 918   }
 919
 920   set_player_judged(player) {
 921     const new_players_judging = {...this.state.players_judging};
 922     delete new_players_judging[player];
 923
 924     this.setState({
 925       players_judged: new Set([...this.state.players_judged, player]),
 926       players_judging: new_players_judging
 927     });
 928   }
 929
 930   set_players_judging(players) {
 931     const players_judging = {};
 932     for (let player of players) {
 933       players_judging[player] = {active: false};
 934     }
 935     this.setState({
 936       players_judging: players_judging
 937     });
 938   }
 939
 940   set_player_judging(player) {
 941     this.setState({
 942       players_judging: {
 943         ...this.state.players_judging,
 944         [player]: {active: true}
 945       }
 946     });
 947   }
 948
 949   set_end_judging(players) {
 950     this.setState({
 951       end_judging_votes: new Set(players)
 952     });
 953   }
 954
 955   set_player_vote_end_judging(player) {
 956     this.setState({
 957       end_judging_votes: new Set([...this.state.end_judging_votes, player])
 958     });
 959   }
 960
 961   set_player_unvote_end_judging(player) {
 962     this.setState({
 963       end_judging_votes: new Set([...this.state.end_judging_votes].filter(p => p !== player))
 964     });
 965   }
 966
 967   set_scores(scores) {
 968     this.setState({
 969       scores: scores
 970     });
 971   }
 972
 973   render() {
 974     const state = this.state;
 975     const players_total = 1 + state.other_players.length;
 976
 977     if (state.scores) {
 978       return (
 979         <div className="scores">
 980           <h2>Scores</h2>
 981           <ul>
 982             {state.scores.scores.map(score => {
 983               return (
 984                 <li key={score.player}>
 985                   {score.player}: {score.score}
 986                 </li>
 987               );
 988             })}
 989           </ul>
 990           <h2>Words submitted</h2>
 991           <ul>
 992             {state.scores.words.map(word => {
 993               return (
 994                 <li key={word.word}>
 995                   {`${word.word}: ${word.players.join(', ')}`}
 996                 </li>
 997               );
 998             })}
 999           </ul>
1000           <button
1001             className="new-game"
1002             onClick={() => fetch_post_json('reset') }
1003           >
1004             New Game
1005           </button>
1006         </div>
1007       );
1008     }
1009
1010     if (state.ambiguities){
1011       return <Ambiguities
1012                prompt={state.active_prompt}
1013                words={state.ambiguities}
1014                player={state.player_info}
1015                players_judged={state.players_judged}
1016                players_judging={state.players_judging}
1017                votes={state.end_judging_votes}
1018              />;
1019     }
1020
1021     if (state.active_prompt) {
1022       return <ActivePrompt
1023                prompt={state.active_prompt}
1024                player={state.player_info}
1025                players_answered={state.players_answered}
1026                players_answering={state.players_answering}
1027                idle={state.answering_idle}
1028                votes={state.end_answers_votes}
1029              />;
1030     }
1031
1032     return [
1033       <GameInfo
1034         key="game-info"
1035         id={state.game_info.id}
1036         url={state.game_info.url}
1037       />,
1038       <PlayerInfo
1039         key="player-info"
1040         game={this}
1041         player={state.player_info}
1042         other_players={state.other_players}
1043       />,
1044       <p key="spacer"></p>,
1045       <CategoryRequest
1046         key="category-request"
1047       />,
1048       <PromptOptions
1049         key="prompts"
1050         prompts={state.prompts}
1051       />,
1052       <LetsPlay
1053         key="lets-play"
1054         num_players={1+state.other_players.length}
1055         prompts={state.prompts}
1056       />
1057     ];
1058   }
1059 }
1060
1061 ReactDOM.render(<Game
1062                   ref={(me) => window.game = me}
1063                 />, document.getElementById("empathy"));