function undisplay(element) { element.style.display="none"; } function add_message(severity, message) { message = `
× ${message}
`; const message_area = document.getElementById('message-area'); message_area.insertAdjacentHTML('beforeend', message); } /********************************************************* * Handling server-sent event stream * *********************************************************/ const events = new EventSource("events"); events.onerror = function(event) { if (event.target.readyState === EventSource.CLOSED) { setTimeout(() => { add_message("danger", "Connection to server lost."); }, 1000); } }; events.addEventListener("game-info", event => { const info = JSON.parse(event.data); window.game.set_game_info(info); }); events.addEventListener("player-info", event => { const info = JSON.parse(event.data); window.game.set_player_info(info); }); events.addEventListener("player-enter", event => { const info = JSON.parse(event.data); window.game.set_other_player_info(info); }); events.addEventListener("player-update", event => { const info = JSON.parse(event.data); if (info.id === window.game.state.player_info.id) window.game.set_player_info(info); else window.game.set_other_player_info(info); }); events.addEventListener("game-state", event => { const state = JSON.parse(event.data); for (let prompt of state.prompts) { window.game.add_or_update_prompt(prompt); } }); events.addEventListener("prompt", event => { const prompt = JSON.parse(event.data); window.game.add_or_update_prompt(prompt); }); /********************************************************* * Game and supporting classes * *********************************************************/ function copy_to_clipboard(id) { const tmp = document.createElement("input"); tmp.setAttribute("value", document.getElementById(id).innerHTML); document.body.appendChild(tmp); tmp.select(); document.execCommand("copy"); document.body.removeChild(tmp); } const GameInfo = React.memo(props => { if (! props.id) return null; return (
{props.id} {" "} Share this link to invite friends:{" "} {props.url} {" "}
); }); const PlayerInfo = React.memo(props => { if (! props.player.id) return null; return (
Players: {props.player.name} {props.other_players.map(other => ( {", "} {other.name} ))}
); }); function fetch_method_json(method, api = '', data = {}) { const response = fetch(api, { method: method, headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(data) }); return response; } function fetch_post_json(api = '', data = {}) { return fetch_method_json('POST', api, data); } async function fetch_put_json(api = '', data = {}) { return fetch_method_json('PUT', api, data); } class CategoryRequest extends React.PureComponent { constructor(props) { super(props); this.category = React.createRef(); this.handle_change = this.handle_change.bind(this); this.handle_submit = this.handle_submit.bind(this); } handle_change(event) { const category_input = this.category.current; const category = category_input.value; if (/[0-9]/.test(category)) category_input.setCustomValidity(""); } handle_submit(event) { const form = event.currentTarget; const category_input = this.category.current; const category = category_input.value; /* Prevent the default page-changing form-submission behavior. */ event.preventDefault(); const match = category.match(/[0-9]+/); if (match === null) { category_input.setCustomValidity("Category must include a number"); form.reportValidity(); return; } fetch_post_json("prompts", { items: parseInt(match[0], 10), prompt: category }); form.reset(); } render() { return (

Submit a Category

Suggest a category to play. Don't forget to include the number of items for each person to submit.

); } } const PromptOptions = React.memo(props => { if (props.prompts.length === 0) return null; return (

Vote on Categories

Select any categories below that you'd like to play. You can choose as many as you'd like.

{props.prompts.map(p => { return ( ); })}
); }); class Game extends React.PureComponent { constructor(props) { super(props); this.state = { game_info: {}, player_info: {}, other_players: [], prompts: [] }; } set_game_info(info) { this.setState({ game_info: info }); } set_player_info(info) { this.setState({ player_info: info }); } set_other_player_info(info) { const other_players_copy = [...this.state.other_players]; const idx = other_players_copy.findIndex(o => o.id === info.id); if (idx >= 0) { other_players_copy[idx] = info; } else { other_players_copy.push(info); } this.setState({ other_players: other_players_copy }); } add_or_update_prompt(prompt) { const prompts_copy = [...this.state.prompts]; const idx = prompts_copy.findIndex(p => p.id === prompt.id); if (idx >= 0) { prompts_copy[idx] = prompt; } else { prompts_copy.push(prompt); } this.setState({ prompts: prompts_copy }); } render() { const state = this.state; return [ , ,

, , ]; } } ReactDOM.render( window.game = me} />, document.getElementById("empathy"));