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

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