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However, it also means that developers (and users)\n// will only see deployed updates on the \"N+1\" visit to a page, since previously\n// cached resources are updated in the background.\n\n// To learn more about the benefits of this model, read https://goo.gl/KwvDNy.\n// This link also includes instructions on opting out of this behavior.\n\nconst isLocalhost = Boolean(\n window.location.hostname === 'localhost' ||\n // [::1] is the IPv6 localhost address.\n window.location.hostname === '[::1]' ||\n // 127.0.0.1/8 is considered localhost for IPv4.\n window.location.hostname.match(\n /^127(?:\\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/\n )\n);\n\nexport default function register() {\n if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {\n // The URL constructor is available in all browsers that support SW.\n const publicUrl = new URL(process.env.PUBLIC_URL, window.location);\n if (publicUrl.origin !== window.location.origin) {\n // Our service worker won't work if PUBLIC_URL is on a different origin\n // from what our page is served on. This might happen if a CDN is used to\n // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374\n return;\n }\n\n window.addEventListener('load', () => {\n const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;\n\n if (isLocalhost) {\n // This is running on localhost. Lets check if a service worker still exists or not.\n checkValidServiceWorker(swUrl);\n } else {\n // Is not local host. Just register service worker\n registerValidSW(swUrl);\n }\n });\n }\n}\n\nfunction registerValidSW(swUrl) {\n navigator.serviceWorker\n .register(swUrl)\n .then(registration => {\n registration.onupdatefound = () => {\n const installingWorker = registration.installing;\n installingWorker.onstatechange = () => {\n if (installingWorker.state === 'installed') {\n if (navigator.serviceWorker.controller) {\n // At this point, the old content will have been purged and\n // the fresh content will have been added to the cache.\n // It's the perfect time to display a \"New content is\n // available; please refresh.\" message in your web app.\n console.log('New content is available; please refresh.');\n } else {\n // At this point, everything has been precached.\n // It's the perfect time to display a\n // \"Content is cached for offline use.\" message.\n console.log('Content is cached for offline use.');\n }\n }\n };\n };\n })\n .catch(error => {\n console.error('Error during service worker registration:', error);\n });\n}\n\nfunction checkValidServiceWorker(swUrl) {\n // Check if the service worker can be found. If it can't reload the page.\n fetch(swUrl)\n .then(response => {\n // Ensure service worker exists, and that we really are getting a JS file.\n if (\n response.status === 404 ||\n response.headers.get('content-type').indexOf('javascript') === -1\n ) {\n // No service worker found. Probably a different app. Reload the page.\n navigator.serviceWorker.ready.then(registration => {\n registration.unregister().then(() => {\n window.location.reload();\n });\n });\n } else {\n // Service worker found. Proceed as normal.\n registerValidSW(swUrl);\n }\n })\n .catch(() => {\n console.log(\n 'No internet connection found. App is running in offline mode.'\n );\n });\n}\n\nexport function unregister() {\n if ('serviceWorker' in navigator) {\n navigator.serviceWorker.ready.then(registration => {\n registration.unregister();\n });\n }\n}\n","import React from 'react'\nimport ReactDOM from 'react-dom'\nimport { BrowserRouter as Router, Switch, Route } from 'react-router-dom'\nimport { GamePage } from './pages/GamePage'\nimport { JoinPage } from './pages/JoinPage'\nimport { LobbyPage } from './pages/LobbyPage'\nimport { MenuPage } from './pages/MenuPage'\nimport { unregister } from './registerServiceWorker'\n\nReactDOM.render(\n \n \n \n \n \n \n \n , \n document.getElementById('root')\n);\n\nunregister();\n","import { useState } from 'react'\nimport { useHistory } from 'react-router'\nimport { createRoom } from '../api'\nimport './MenuPage.scss'\n\nexport function MenuPage() {\n const [username, setUsername] = useState('')\n const history = useHistory()\n\n const handleJoinRoom = () => {\n if (!username) return\n history.push('/join', { username })\n }\n\n const handleCreateRoom = async () => {\n if (!username) return\n const res = await createRoom(username)\n if (res.ok) {\n const { code } = await res.json()\n history.replace('/lobby', { code, initialPlayers: [username], initialLeader: username, username })\n }\n }\n\n return
\n}","import { useEffect, useState } from 'react'\nimport { useHistory, useLocation } from 'react-router'\nimport { socket, connectSocket, startGame } from '../api'\nimport './LobbyPage.scss'\n\nexport function LobbyPage() {\n const history = useHistory()\n const { code, initialPlayers, initialLeader, username } = useLocation().state\n\n const [players, setPlayers] = useState(initialPlayers)\n const [leader, setLeader] = useState(initialLeader)\n\n useEffect(() => {\n // Should have gotten here from main or join page\n if (!code || !initialPlayers || initialPlayers.length === 0 || !initialLeader || !username) {\n history.replace('/')\n return null\n }\n\n // Connect to sockets, subscribe to update_players socket event\n connectSocket()\n socket.on('update_players', (players, leader) => {\n setPlayers(players)\n setLeader(leader)\n })\n\n socket.on('start_game', () => {\n history.replace('/game', { username })\n })\n\n socket.on('disconnect', () => {\n history.replace('/')\n })\n }, [])\n\n return
\n
Lobby
\n Room code: {code}\n { players.map(p =>
{p}
) }\n { leader === username && \n \n }\n
\n}","import { useEffect, useState } from 'react'\nimport { useHistory, useLocation } from 'react-router'\nimport { getGameState, playAction, socket } from '../api'\nimport { Tile } from 'mahjong'\nimport { CountdownCircleTimer } from \"react-countdown-circle-timer\";\nimport './GamePage.scss'\n\nexport function GamePage() {\n const history = useHistory()\n const { username } = useLocation().state\n\n const [handConcealed, setHandConcealed] = useState([])\n const [handExposed, setHandExposed] = useState([])\n const [discarded, setDiscarded] = useState([])\n\n // Of players, whose turn is it? Indexes the players state; 3 represents self\n const [turn, setTurn] = useState(-1)\n const [winner, setWinner] = useState(-1)\n\n const [pendingAction, setPendingAction] = useState(null)\n const [interrupts, setInterrupts] = useState([])\n const [hover, setHover] = useState(null)\n \n // List of the 3 other players, in left, top, right order\n const [players, setPlayers] = useState(Array.from({ length: 3 }, () => ({ username: '', handExposed: [], discarded: [] })))\n\n useEffect(async () => {\n // Fetch game state\n const res = await getGameState()\n if (!res.ok) {\n history.replace('/')\n return\n }\n updateGameState(await res.json())\n\n socket.on('game_state_update', (state) => {\n updateGameState(state)\n })\n\n socket.on('disconnect', () => {\n history.replace('/')\n })\n }, [])\n\n useEffect(async () => {\n setInterrupts(getAvailableInterrupts())\n }, [pendingAction])\n\n const updateGameState = (state) => {\n setHandConcealed(state.handConcealed)\n setHandExposed(state.handExposed)\n setDiscarded(state.discarded)\n setPlayers(state.players)\n setPendingAction(state.pendingAction)\n setWinner(state.winner)\n\n if (state.pendingAction) {\n setTurn(-1)\n } else {\n setTurn(state.turn)\n }\n }\n\n const canMahjongInterrupt = () => {\n // If no pending action, cannot interrupt\n if (!pendingAction) return false\n\n // If we are the pending action, we can't do anything\n if (pendingAction.username === username) return false\n\n let t = pendingAction.tile\n\n return Tile.winningHand([...handConcealed, t], 1, 4 - handExposed.length)\n }\n\n const getAvailableInterrupts = () => {\n // If no pending action, cannot interrupt\n if (!pendingAction) return []\n\n // If we are the pending action, we can't do anything\n if (pendingAction.username === username) return []\n \n let t = pendingAction.tile\n\n const availableInterrupts = []\n\n for (let i = 0; i < handConcealed.length; i++) {\n const ti = handConcealed[i];\n\n // If t and ti are not the same suit, or are more than 2 ranks removed, cannot possibly form meld\n if (ti.suit !== t.suit || Math.abs(ti.value - t.value) > 2) continue;\n\n for (let j = i + 1; j < handConcealed.length; j++) {\n const tj = handConcealed[j];\n\n // If t and tj are not the same suit, or are more than 2 ranks removed from t or ti, cannot possibly form meld\n if (tj.suit !== t.suit || Math.abs(tj.value - t.value) > 2 || Math.abs(tj.value - ti.value) > 2) continue;\n\n // Does tile t form a meld with the ones at indexes i and j in handConcealed?\n if (t.value === ti.value && ti.value === tj.value) {\n // Forms a pong; add iff pending action is discard or chow\n if (pendingAction.action < 2) {\n availableInterrupts.push([i, j])\n }\n\n // Check if forms a kong\n for (let k = j + 1; k < handConcealed.length; k++) {\n const tk = handConcealed[k];\n if (t.suit === tk.suit && t.value === tk.value) {\n // Forms a kong; add iff pending action is discard or chow\n if (pendingAction.action < 2) {\n availableInterrupts.push([i, j, k])\n }\n }\n }\n }\n\n const values = [t, ti, tj].map(tile => tile.value).sort()\n if (t.suit !== 'd' && t.suit !== 'f' && values[1] - values[0] === 1 && values[2] - values[1] === 1) {\n // Forms a chow; add iff pending action is a discard from the player immediately prior\n if (pendingAction.action < 1 && pendingAction.username === players[2].username) {\n availableInterrupts.push([i, j])\n }\n }\n }\n }\n\n // Remove any duplicate interrupts\n for (let i = 0; i < availableInterrupts.length; i++) {\n for (let j = i + 1; j < availableInterrupts.length; j++) {\n let a = availableInterrupts[i];\n let b = availableInterrupts[j];\n\n // Kongs are not duplicate w/ pongs & chows\n if (a.length !== b.length) continue;\n\n // Iterate through each tile of each actions...\n if (a.every((t, p) => handConcealed[t].suit === handConcealed[b[p]].suit && handConcealed[t].value === handConcealed[b[p]].value)) {\n // if the tileset is identical, remove action j\n availableInterrupts.splice(j, 1)\n j--\n }\n }\n }\n\n return availableInterrupts\n }\n\n const hiddenTileCount = (i) => {\n // Winner has 0 hidden tiles\n if (i === winner) return 0;\n\n const p = players[i];\n if (!p.handExposed) return 0;\n return 13 - p.handExposed.length * 3 + (1 ? turn === i : 0);\n }\n\n /**\n * Discards a tile that was clicked on, if it is this player's turn\n * @param {number} i Index of tile to discard\n * @returns void\n */\n const handleTileClick = (i) => {\n if (winner >= 0) return;\n\n // Tile click only valid in 2 scenarios...\n if (turn === 3 && !pendingAction) {\n // 1. It is our turn, and we are discarding\n playAction(0, [i])\n return\n } else if (turn !== 3 && pendingAction) {\n // 2. There is a pending discard that isn't ours\n const interrupt = getAssociatedInterrupt(i)\n if (!interrupt) return\n\n setHover(null)\n\n // Is this a chow or pong/kong?\n const t1 = handConcealed[interrupt[0]]\n const t2 = handConcealed[interrupt[1]]\n if (t1.value === t2.value) {\n console.log('play pong/kong')\n // Pong or kong\n playAction(2, interrupt)\n } else {\n console.log('play chow')\n // Chow\n playAction(1, interrupt)\n }\n }\n }\n\n const handleMahjongClick = () => {\n playAction(3)\n }\n\n const getAssociatedInterrupt = (i) => {\n return interrupts.find(interrupt => interrupt.includes(i))\n }\n\n let status;\n if (pendingAction) {\n console.log(pendingAction)\n let t = pendingAction.tile\n switch (pendingAction.action) {\n case 0:\n // DISCARD\n status =
\n
{ pendingAction.username } discarded:
\n \n { canMahjongInterrupt() && }\n
\n break;\n case 1:\n // CHOW\n status =
\n
{ pendingAction.username } to CHOW:
\n \n { canMahjongInterrupt() && }\n
\n break;\n case 2:\n // PONG\n status =
\n
{ pendingAction.username } to PONG/KONG:
\n \n { canMahjongInterrupt() && }\n
\n break;\n default:\n break;\n }\n }\n\n if (winner >= 0) {\n if (winner === 4) {\n status =
\n { canMahjongInterrupt() && }\n 
)\n }\n {\n players[2].handExposed.map((meld, i) => {\n return