1 const MAX_PROMPT_ITEMS = 20;
3 function undisplay(element) {
4 element.style.display="none";
7 function add_message(severity, message) {
8 message = `<div class="message ${severity}" onclick="undisplay(this)">
9 <span class="hide-button" onclick="undisplay(this.parentElement)">×</span>
12 const message_area = document.getElementById('message-area');
13 message_area.insertAdjacentHTML('beforeend', message);
16 /*********************************************************
17 * Handling server-sent event stream *
18 *********************************************************/
20 const events = new EventSource("events");
22 events.onerror = function(event) {
23 if (event.target.readyState === EventSource.CLOSED) {
25 add_message("danger", "Connection to server lost.");
30 events.addEventListener("game-info", event => {
31 const info = JSON.parse(event.data);
33 window.game.set_game_info(info);
36 events.addEventListener("player-info", event => {
37 const info = JSON.parse(event.data);
39 window.game.set_player_info(info);
42 events.addEventListener("player-enter", event => {
43 const info = JSON.parse(event.data);
45 window.game.set_other_player_info(info);
48 events.addEventListener("player-update", event => {
49 const info = JSON.parse(event.data);
51 if (info.id === window.game.state.player_info.id)
52 window.game.set_player_info(info);
54 window.game.set_other_player_info(info);
57 events.addEventListener("game-state", event => {
58 const state = JSON.parse(event.data);
60 window.game.reset_game_state();
62 window.game.set_prompts(state.prompts);
64 window.game.set_active_prompt(state.active_prompt);
66 window.game.set_players_answered(state.players_answered);
68 window.game.set_players_answering(state.players_answering);
70 window.game.set_answering_idle(state.answering_idle);
72 window.game.set_end_answers(state.end_answers);
74 window.game.set_ambiguities(state.ambiguities);
76 window.game.set_players_judged(state.players_judged);
78 window.game.set_players_judging(state.players_judging);
80 window.game.set_judging_idle(state.judging_idle);
82 window.game.set_end_judging(state.end_judging);
84 window.game.set_scores(state.scores);
87 events.addEventListener("prompt", event => {
88 const prompt = JSON.parse(event.data);
90 window.game.add_or_update_prompt(prompt);
93 events.addEventListener("start", event => {
94 const prompt = JSON.parse(event.data);
96 window.game.set_active_prompt(prompt);
99 events.addEventListener("player-answered", event => {
100 const player = JSON.parse(event.data);
102 window.game.set_player_answered(player);
105 events.addEventListener("player-answering", event => {
106 const player = JSON.parse(event.data);
108 window.game.set_player_answering(player);
111 events.addEventListener("answering-idle", event => {
112 const value = JSON.parse(event.data);
114 window.game.set_answering_idle(value);
117 events.addEventListener("vote-end-answers", event => {
118 const player = JSON.parse(event.data);
120 window.game.set_player_vote_end_answers(player);
123 events.addEventListener("unvote-end-answers", event => {
124 const player = JSON.parse(event.data);
126 window.game.set_player_unvote_end_answers(player);
129 events.addEventListener("ambiguities", event => {
130 const ambiguities = JSON.parse(event.data);
132 window.game.set_ambiguities(ambiguities);
135 events.addEventListener("player-judged", event => {
136 const player = JSON.parse(event.data);
138 window.game.set_player_judged(player);
141 events.addEventListener("player-judging", event => {
142 const player = JSON.parse(event.data);
144 window.game.set_player_judging(player);
147 events.addEventListener("judging-idle", event => {
148 const value = JSON.parse(event.data);
150 window.game.set_judging_idle(value);
153 events.addEventListener("vote-end-judging", event => {
154 const player = JSON.parse(event.data);
156 window.game.set_player_vote_end_judging(player);
159 events.addEventListener("unvote-end-judging", event => {
160 const player = JSON.parse(event.data);
162 window.game.set_player_unvote_end_judging(player);
165 events.addEventListener("scores", event => {
166 const scores = JSON.parse(event.data);
168 window.game.set_scores(scores);
171 /*********************************************************
172 * Game and supporting classes *
173 *********************************************************/
175 function copy_to_clipboard(id)
177 const tmp = document.createElement("input");
178 tmp.setAttribute("value", document.getElementById(id).innerHTML);
179 document.body.appendChild(tmp);
181 document.execCommand("copy");
182 document.body.removeChild(tmp);
185 const GameInfo = React.memo(props => {
190 <div className="game-info">
191 <span className="game-id">{props.id}</span>
193 Share this link to invite friends:{" "}
194 <span id="game-share-url">{props.url}</span>
198 onClick={() => copy_to_clipboard('game-share-url')}
204 const PlayerInfo = React.memo(props => {
205 if (! props.player.id)
208 const all_players = [props.player, ...props.other_players];
210 const sorted_players = all_players.sort((a,b) => {
211 return b.score - a.score;
214 const names_and_scores = sorted_players.map(player => {
216 return `${player.name} (${player.score})`;
222 <div className="player-info">
223 <span className="players-header">Players: </span>
224 <span>{names_and_scores}</span>
229 function fetch_method_json(method, api = '', data = {}) {
230 const response = fetch(api, {
233 'Content-Type': 'application/json'
235 body: JSON.stringify(data)
240 function fetch_post_json(api = '', data = {}) {
241 return fetch_method_json('POST', api, data);
244 async function fetch_put_json(api = '', data = {}) {
245 return fetch_method_json('PUT', api, data);
248 class CategoryRequest extends React.PureComponent {
251 this.category = React.createRef();
253 this.handle_change = this.handle_change.bind(this);
254 this.handle_submit = this.handle_submit.bind(this);
257 handle_change(event) {
258 const category_input = this.category.current;
259 const category = category_input.value;
261 const match = category.match(/[0-9]+/);
263 const num_items = parseInt(match[0], 10);
264 if (num_items <= MAX_PROMPT_ITEMS)
265 category_input.setCustomValidity("");
269 async handle_submit(event) {
270 const form = event.currentTarget;
271 const category_input = this.category.current;
272 const category = category_input.value;
274 /* Prevent the default page-changing form-submission behavior. */
275 event.preventDefault();
277 const match = category.match(/[0-9]+/);
278 if (match === null) {
279 category_input.setCustomValidity("Category must include a number");
280 form.reportValidity();
284 const num_items = parseInt(match[0], 10);
286 if (num_items > MAX_PROMPT_ITEMS) {
287 category_input.setCustomValidity(`Maximum number of items is ${MAX_PROMPT_ITEMS}`);
288 form.reportValidity();
292 const response = await fetch_post_json("prompts", {
297 if (response.status === 200) {
298 const result = await response.json();
299 if (! result.valid) {
300 add_message("danger", result.message);
304 add_message("danger", "An error occurred submitting your category");
312 <div className="category-request">
313 <h2>Submit a Category</h2>
315 Suggest a category to play. Don't forget to include the
316 number of items for each person to submit.
319 <form onSubmit={this.handle_submit} >
320 <div className="form-field large">
324 placeholder="6 things at the beach"
327 onChange={this.handle_change}
332 <div className="form-field large">
333 <button type="submit">
344 const PromptOptions = React.memo(props => {
346 if (props.prompts.length === 0)
350 <div className="prompt-options">
351 <h2>Vote on Categories</h2>
353 Select any categories below that you'd like to play.
354 You can choose as many as you'd like.
356 {props.prompts.map(p => {
359 className="vote-button"
361 onClick={() => fetch_post_json(`vote/${p.id}`) }
364 <div className="vote-choices">
369 className="vote-choice"
383 const LetsPlay = React.memo(props => {
385 const quorum = Math.round((props.num_players + 1) / 2);
386 const max_votes = props.prompts.reduce(
387 (max_so_far, v) => Math.max(max_so_far, v.votes.length), 0);
389 if (max_votes < quorum)
392 const candidates = props.prompts.filter(p => p.votes.length >= quorum);
393 const index = Math.floor(Math.random() * candidates.length);
394 const winner = candidates[index];
397 <div className="lets-play">
400 That should be enough voting. If you're not waiting for any
401 other players to join, then let's start.
404 className="lets-play"
405 onClick={() => fetch_post_json(`start/${winner.id}`) }
413 class Ambiguities extends React.PureComponent {
418 const word_sets = props.words.map(word => {
419 const set = new Set();
425 word_sets: word_sets,
429 this.submitted = false;
430 this.judging_sent_recently = false;
433 async handle_submit() {
435 /* Don't submit a second time. */
439 const response = await fetch_post_json(
440 `judged/${this.props.prompt.id}`,{
441 word_groups: this.state.word_sets.map(set => Array.from(set))
445 if (response.status === 200) {
446 const result = await response.json();
447 if (! result.valid) {
448 add_message("danger", result.message);
452 add_message("danger", "An error occurred submitting the results of your judging");
456 this.submitted = true;
461 /* Let the server know we are doing some judging, (but rate limit
462 * this so we don't send a "judging" notification more frquently
465 if (! this.judging_sent_recently) {
466 fetch_post_json(`judging/${this.props.prompt.id}`);
467 this.judging_sent_recently = true;
468 setTimeout(() => { this.judging_sent_recently = false; }, 1000);
471 if (this.state.selected == word) {
472 /* Second click on same word removes the word from the group. */
473 const idx = this.state.word_sets.findIndex(s => s.has(word));
474 const set = this.state.word_sets[idx];
475 if (set.size === 1) {
476 /* When the word is already alone, there's nothing to do but
477 * to un-select it. */
484 const new_set = new Set([...set].filter(w => w !== word));
487 word_sets: [...this.state.word_sets.slice(0, idx),
490 ...this.state.word_sets.slice(idx+1)]
492 } else if (this.state.selected) {
493 /* Click of a second word groups the two together. */
494 const idx1 = this.state.word_sets.findIndex(s => s.has(this.state.selected));
495 const idx2 = this.state.word_sets.findIndex(s => s.has(word));
496 const set1 = this.state.word_sets[idx1];
497 const set2 = this.state.word_sets[idx2];
498 const new_set = new Set([...set2, ...set1]);
502 word_sets: [...this.state.word_sets.slice(0, idx1),
503 ...this.state.word_sets.slice(idx1 + 1, idx2),
505 ...this.state.word_sets.slice(idx2 + 1)]
510 word_sets: [...this.state.word_sets.slice(0, idx2),
512 ...this.state.word_sets.slice(idx2 + 1, idx1),
513 ...this.state.word_sets.slice(idx1 + 1)]
517 /* First click of a word selects it. */
525 let move_on_button = null;
527 if (this.props.idle) {
530 className="vote-button"
531 onClick={() => fetch_post_json(`end-judging/${this.props.prompt.id}`) }
534 <div className="vote-choices">
535 {[...this.props.votes].map(v => {
539 className="vote-choice"
550 if (this.props.players_judged.has(this.props.player.name)) {
552 <div className="please-wait">
553 <h2>Submission received</h2>
555 The following players have completed judging:
556 {[...this.props.players_judged].join(', ')}
559 Still waiting for the following players:
562 {Object.keys(this.props.players_judging).map(player => {
568 {this.props.players_judging[player] ?
569 <span className="typing"/> : null }
580 const btn_class = "ambiguity-button";
581 const btn_selected_class = btn_class + " selected";
584 <div className="ambiguities">
585 <h2>Judging Answers</h2>
587 Click on each pair of answers that should be scored as equivalent,
588 (and click any word twice to split it out from a group). Remember,
589 what goes around comes around, so it's best to be generous when
592 {this.state.word_sets.map(set => {
595 className="ambiguity-group"
596 key={Array.from(set)[0]}
598 {Array.from(set).map(word => {
601 className={this.state.selected === word ?
602 btn_selected_class : btn_class }
604 onClick={() => this.handle_click(word)}
614 Click here when done judging:<br/>
616 onClick={() => this.handle_submit()}
626 class ActivePrompt extends React.PureComponent {
630 const items = props.prompt.items;
632 this.submitted = false;
634 this.answers = [...Array(items)].map(() => React.createRef());
635 this.answering_sent_recently = false;
637 this.handle_submit = this.handle_submit.bind(this);
638 this.handle_change = this.handle_change.bind(this);
641 handle_change(event) {
642 /* We don't care (or even look) at what the player is typing at
643 * this point. We simply want to be informed that the player _is_
644 * typing so that we can tell the server (which will tell other
645 * players) that there is activity here.
648 /* Rate limit so that we don't send an "answering" notification
649 * more frequently than necessary.
651 if (! this.answering_sent_recently) {
652 fetch_post_json(`answering/${this.props.prompt.id}`);
653 this.answering_sent_recently = true;
654 setTimeout(() => { this.answering_sent_recently = false; }, 1000);
658 async handle_submit(event) {
659 const form = event.currentTarget;
661 /* Prevent the default page-changing form-submission behavior. */
662 event.preventDefault();
664 /* And don't submit a second time. */
668 const response = await fetch_post_json(`answer/${this.props.prompt.id}`, {
669 answers: this.answers.map(r => r.current.value)
671 if (response.status === 200) {
672 const result = await response.json();
673 if (! result.valid) {
674 add_message("danger", result.message);
678 add_message("danger", "An error occurred submitting your answers");
682 /* Everything worked. Server is happy with our answers. */
684 this.submitted = true;
688 let move_on_button = null;
689 if (this.props.idle) {
692 className="vote-button"
693 onClick={() => fetch_post_json(`end-answers/${this.props.prompt.id}`) }
696 <div className="vote-choices">
697 {[...this.props.votes].map(v => {
701 className="vote-choice"
712 if (this.props.players_answered.has(this.props.player.name)) {
714 <div className="please-wait">
715 <h2>Submission received</h2>
717 The following players have submitted their answers:
718 {[...this.props.players_answered].join(', ')}
721 Still waiting for the following players:
724 {Object.keys(this.props.players_answering).map(player => {
730 {this.props.players_answering[player] ?
731 <span className="typing"/> : null }
743 <div className="active-prompt">
744 <h2>The Game of Empathy</h2>
746 Remember, you're trying to match your answers with
747 what the other players submit.
748 Give {this.props.prompt.items} answers for the following prompt:
750 <h2>{this.props.prompt.prompt}</h2>
751 <form onSubmit={this.handle_submit}>
752 {[...Array(this.props.prompt.items)].map((whocares,i) => {
756 className="form-field large">
762 onChange={this.handle_change}
763 ref={this.answers[i]}
771 className="form-field large">
772 <button type="submit">
783 class Game extends React.PureComponent {
792 players_answered: new Set(),
793 players_answering: {},
794 answering_idle: false,
795 end_answers_votes: new Set(),
797 players_judged: new Set(),
800 end_judging_votes: new Set(),
805 set_game_info(info) {
811 set_player_info(info) {
817 set_other_player_info(info) {
818 const other_players_copy = [...this.state.other_players];
819 const idx = other_players_copy.findIndex(o => o.id === info.id);
821 other_players_copy[idx] = info;
823 other_players_copy.push(info);
826 other_players: other_players_copy
834 players_answered: new Set(),
835 players_answering: {},
836 answering_idle: false,
837 end_answers_votes: new Set(),
839 players_judged: new Set(),
842 end_judging_votes: new Set(),
847 set_prompts(prompts) {
853 add_or_update_prompt(prompt) {
854 const prompts_copy = [...this.state.prompts];
855 const idx = prompts_copy.findIndex(p => p.id === prompt.id);
857 prompts_copy[idx] = prompt;
859 prompts_copy.push(prompt);
862 prompts: prompts_copy
866 set_active_prompt(prompt) {
868 active_prompt: prompt
872 set_players_answered(players) {
874 players_answered: new Set(players)
878 set_player_answered(player) {
879 const new_players_answering = {...this.state.players_answering};
880 delete new_players_answering[player];
883 players_answered: new Set([...this.state.players_answered, player]),
884 players_answering: new_players_answering
888 set_players_answering(players) {
889 const players_answering = {};
890 for (let player of players) {
891 players_answering[player] = {active: false};
894 players_answering: players_answering
898 set_player_answering(player) {
901 ...this.state.players_answering,
902 [player]: {active: true}
907 set_answering_idle(value) {
909 answering_idle: value
913 set_end_answers(players) {
915 end_answers_votes: new Set(players)
919 set_player_vote_end_answers(player) {
921 end_answers_votes: new Set([...this.state.end_answers_votes, player])
925 set_player_unvote_end_answers(player) {
927 end_answers_votes: new Set([...this.state.end_answers_votes].filter(p => p !== player))
931 set_ambiguities(ambiguities) {
933 ambiguities: ambiguities
937 set_players_judged(players) {
939 players_judged: new Set(players)
943 set_player_judged(player) {
944 const new_players_judging = {...this.state.players_judging};
945 delete new_players_judging[player];
948 players_judged: new Set([...this.state.players_judged, player]),
949 players_judging: new_players_judging
953 set_players_judging(players) {
954 const players_judging = {};
955 for (let player of players) {
956 players_judging[player] = {active: false};
959 players_judging: players_judging
963 set_player_judging(player) {
966 ...this.state.players_judging,
967 [player]: {active: true}
972 set_judging_idle(value) {
973 console.log("Setting judging idle to " + value);
979 set_end_judging(players) {
981 end_judging_votes: new Set(players)
985 set_player_vote_end_judging(player) {
987 end_judging_votes: new Set([...this.state.end_judging_votes, player])
991 set_player_unvote_end_judging(player) {
993 end_judging_votes: new Set([...this.state.end_judging_votes].filter(p => p !== player))
1004 const state = this.state;
1005 const players_total = 1 + state.other_players.length;
1009 <div className="scores">
1012 {state.scores.scores.map(score => {
1014 <li key={score.player}>
1015 {score.player}: {score.score}
1020 <h2>Words submitted</h2>
1022 {state.scores.words.map(word => {
1024 <li key={word.word}>
1025 {`${word.word}: ${word.players.join(', ')}`}
1031 className="new-game"
1032 onClick={() => fetch_post_json('reset') }
1040 if (state.ambiguities){
1042 prompt={state.active_prompt}
1043 words={state.ambiguities}
1044 player={state.player_info}
1045 players_judged={state.players_judged}
1046 players_judging={state.players_judging}
1047 idle={state.judging_idle}
1048 votes={state.end_judging_votes}
1052 if (state.active_prompt) {
1053 return <ActivePrompt
1054 prompt={state.active_prompt}
1055 player={state.player_info}
1056 players_answered={state.players_answered}
1057 players_answering={state.players_answering}
1058 idle={state.answering_idle}
1059 votes={state.end_answers_votes}
1066 id={state.game_info.id}
1067 url={state.game_info.url}
1072 player={state.player_info}
1073 other_players={state.other_players}
1075 <p key="spacer"></p>,
1077 key="category-request"
1081 prompts={state.prompts}
1085 num_players={1+state.other_players.length}
1086 prompts={state.prompts}
1092 ReactDOM.render(<Game
1093 ref={(me) => window.game = me}
1094 />, document.getElementById("empathy"));