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app.js
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app.js
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var express = require('express');
var app = express();
const port = process.env.PORT || 4000;
var _ = require('lodash');
const server = require('http').createServer(app);
const songData = require('./song/song_kr.json');
const songDataJP = require('./song/song_jp.json');
const songDataEN = require('./song/song_en.json');
// const io = require("socket.io")(server, {
// cors: {
// origin: "http://localhost:3000",
// methods: ["GET", "POST"],
// },
// });
const io = require("socket.io")(server, {
cors: {
origin: "*",
methods: ["GET", "POST"],
},
});
server.listen(port, () => {
console.log(`Listening on port ${port}`);
});
const ROOM_CODE = 'ROOM_';
const SERVER_VERSION = 'v1.0.2';
const READY_STATE = 0; // λκΈ° λ°© μν
const STARTING_STATE = 1; // κ²μ μμ μ€μΈ μν
const PLAYING_STATE = 2; // κ²μ μ€ μν
const WAITING_STATE = 3; // κ²μ μ€μ λ€μ λ
Έλ λκΈ°μ€ μν (κ²μ μ€μ PLAYING_STATE μ λ²κ°μ κ°)
let roomData = {};
let roomIdx = 0;
function shuffle(a) {
var j, x, i;
for (i = a.length; i; i -= 1) {
j = Math.floor(Math.random() * i);
x = a[i - 1];
a[i - 1] = a[j];
a[j] = x;
}
}
io.on('connection', (socket) => {
// console.log('SERVER VERSION ', SERVER_VERSION);
// console.log("μ°κ²°λ socketID : ", socket.id);
// console.log('νμ¬ ', io.engine.clientsCount);
// μ μνλ©΄ socketIdλ₯Ό μ μ₯νκ²ν¨ io.to(socket.id)
socket.emit('my socket id', {
socketId: socket.id,
server_version: SERVER_VERSION
});
function nextSong(roomCode) {
try {
if (roomData[roomCode].songList.length > 0) {
roomData[roomCode].skipCount.clear();
io.to(ROOM_CODE + roomCode).emit('next song', roomData[roomCode].songList[0]);
} else {
roomData[roomCode].isPlaying = READY_STATE;
io.to(ROOM_CODE + roomCode).emit('game end');
}
} catch (e) {
console.log('nextSong', e);
}
}
function outRoomCheck(roomCode, socketId) {
try {
if (!roomData[roomCode])
return;
// λ°©μ λ νΌμ μλ€λ©΄ λ°©λ§ μμ
if (roomData[roomCode].userList.length <= 1) {
delete roomData[roomCode];
}
// λ°©μ μΌμμ΄λΌλ©΄ λ€λ₯Έ μ¬λλ€μκ² λκ°λ€κ³ μλ¦Ό
else {
const idx = roomData[roomCode].userList.findIndex((item) => {
return item.socketId === socketId;
});
if (idx === -1) return;
roomData[roomCode].userList.splice(idx, 1);
io.to(ROOM_CODE + roomCode).emit('someone exit', { socketId: socketId });
// λ§μ½ μ¬λΌμ§ μ μ κ° λ°©μ₯μ΄λΌλ©΄(λ°©μ₯μ νμ 0λ²) λ€μ μ¬λμκ² λ°©μ₯ λ겨주기
console.log('EXIT USER : ', idx);
if (idx === 0) {
console.log(roomData[roomCode].userList[0].socketId);
io.to(roomData[roomCode].userList[0].socketId).emit('your manager', roomData[roomCode].songTags);
}
}
} catch (e) {
console.log('outRoomCheck', e);
}
}
//================================
// Room - Create
socket.on('create room', (data) => {
roomIdx++;
roomData[roomIdx] = {
language: data.language,
songTags: data.tags,
unWanted: data.unTags,
maxSongNum: data.maxSongNum,
maxUserNum: data.maxUserNum,
userList: [
{
socketId: data.user.socketId,
nickname: data.user.nickname,
profile: data.user.profile,
color: data.user.color
}
],
songList: [],
skipCount: new Set(),
isPlaying: READY_STATE
};
socket.join(ROOM_CODE + roomIdx);
socket.emit('get room code', { roomCode: roomIdx });
});
//================================
// Room - Join
socket.on('join room', (data) => {
try {
// μ‘΄μ¬νλ λ°©μΈμ§
if (roomData[data.roomCode] != undefined) {
// ν΄λΉ λ°©μ λ΄κ° μ΄λ―Έ λ€μ΄μ μλμ§
if (roomData[data.roomCode].userList.length > 0) {
// λ°©μ₯μΈμ§ μλμ§ νμΈ
if (roomData[data.roomCode].userList.filter(e => e.socketId === data.user.socketId).length > 0) {
socket.emit('your manager', roomData[data.roomCode].songTags);
} else {
// μΈμμ 체ν¬
if (roomData[data.roomCode].userList.length + 1 >= roomData[data.roomCode].maxUserNum ||
roomData[data.roomCode].isPlaying) {
// λ΄κ° λ€μ΄κ°λ©΄ μΈμμκ° λμΉκ±°λ κ²μμ€μΈ λ°©μ κ°μ λ‘ μ μνμ
socket.emit('forced exit');
return;
}
// κΈ°μ‘΄μ μλ μ μ λ€μκ² λ΄ λ°μ΄ν°λ₯Ό 보λ΄μ€
io.to(ROOM_CODE + data.roomCode).emit('someone join', data.user);
// λμκ² μ 체 κΈ°μ‘΄ μ μ λ°μ΄ν°λ€μ 보λ΄μ€
socket.emit('join room', roomData[data.roomCode].userList, roomData[data.roomCode].songTags);
roomData[data.roomCode].userList.push(data.user);
socket.join(ROOM_CODE + data.roomCode);
}
}
} else {
// error : μλ λ°©
socket.emit('forced exit');
}
} catch (e) {
console.log('join room', e);
}
});
//================================
// Room - Exit
socket.on('exit room', (data) => {
socket.leave(ROOM_CODE + data.roomCode);
outRoomCheck(data.roomCode, data.socketId);
});
//================================
// Room - Forced Exit
socket.on('forced exit', (data) => {
io.to(data.target).emit('forced exit');
});
//================================
// Room - Get List
socket.on('get room list', () => {
try {
io.emit('get room list', { roomList: Object.keys(roomData).filter((key) => {
return !roomData[key].isPlaying;
}).reduce((obj, key, idx) => {
obj[key] = { ...roomData[key] };
obj[key].curUserNum = obj[key].userList.length;
delete obj[key].userList;
return obj;
}, {}), clientsCount: io.engine.clientsCount });
} catch (e) {
console.log('get room list', e);
}
});
//================================
// Room - Send Chat
socket.on('send chat', data => {
try {
data.isAnswer = false;
if (roomData[data.roomCode].isPlaying === PLAYING_STATE) {
// μ€ν΅ ν¬λ§ μ±ν
μΈμ§
if (data.msg === '!μ€ν΅' || data.msg === '!skip') {
// μ΄λ―Έ λ΄κ° μ€ν΅ ν¬νλ₯Ό νλμ§ νμΈ
if (!roomData[data.roomCode].skipCount.has(data.socketId)) {
roomData[data.roomCode].skipCount.add(data.socketId);
data.wantSkip = true; // μ€ν΅μ ν¬λ§νλ, μ μμ μΌλ‘ μ μ₯λ¨μ μλ¦Ό
// μ°Έκ° μΈμμ λ°μ λ³΄λ€ μ€ν΅ ν¬λ§μ΄ λ§μΌλ©΄ μ€ν΅ μ§ν
if (roomData[data.roomCode].skipCount.size >= Math.ceil((roomData[data.roomCode].userList.length + 1) / 2)) {
roomData[data.roomCode].isPlaying = WAITING_STATE;
io.to(ROOM_CODE + data.roomCode).emit('answer song', roomData[data.roomCode].songList[0]);
roomData[data.roomCode].songList[0].answer = []; // λ μ΄μ μ λ΅ μ μΆμκ° μλλ‘
roomData[data.roomCode].skipCount.clear();
}
}
}
// μ λ΅ μ μΆν μ±ν
μΈμ§
if (roomData[data.roomCode].songList[0].answer.includes( data.msg.replace(/\s/g, '').toLowerCase() )) {
data.isAnswer = true;
roomData[data.roomCode].songList[0].answer = []; // λ μ΄μ μ λ΅ μ μΆμκ° μλλ‘
}
}
io.to(ROOM_CODE + data.roomCode).emit('receive chat', data);
} catch (e) {
console.log('send chat', e);
}
});
//================================
// Room - Request Answer
socket.on('request answer', data => {
if (!roomData[data.roomCode])
return;
try {
roomData[data.roomCode].isPlaying = WAITING_STATE;
io.to(ROOM_CODE + data.roomCode).emit('answer song', roomData[data.roomCode].songList[0]);
} catch (e) {
console.log('request answer', e);
}
});
//================================
// Room - Request Next Song
socket.on('request next', data => {
if (!roomData[data.roomCode])
return;
try {
if (roomData[data.roomCode].isPlaying !== STARTING_STATE) {
roomData[data.roomCode].songList.shift();
}
roomData[data.roomCode].isPlaying = PLAYING_STATE;
if (roomData[data.roomCode] && roomData[data.roomCode].isPlaying) {
nextSong(data.roomCode);
}
} catch (e) {
console.log('request next', e);
}
});
function checkLanguage(lang) {
if (lang === 'en')
return songDataEN;
else if (lang === 'jp')
return songDataJP;
return songData;
}
//================================
// Game - Game Start
socket.on('game start', (data) => {
if (roomData[data.roomCode].isPlaying !== READY_STATE) // μ΄ μνκ° μλλΌλ©΄ μ΄λ―Έ κ²μμ€μ΄ νΈμΆλ μν
return;
roomData[data.roomCode].isPlaying = STARTING_STATE;
try {
roomData[data.roomCode].songList = _.cloneDeep(checkLanguage(roomData[data.roomCode].language).filter((song, idx) => {
let isHave = false;
// μνμ§ μλ νκ·Έκ° μλμ§ νμΈ
roomData[data.roomCode].unWanted.forEach(unWantTag => {
if (song.tags.includes(unWantTag)) {
isHave = true;
return false;
}
});
// μνμ§ μλ νκ·Έκ° μμκΈ° λλ¬Έμ ν΄λΉ 곑μ λ²λ¦Ό
if (isHave) {
return false;
}
// μνλ νκ·Έκ° μλμ§ νμΈ μλ€λ©΄ ν΄λΉ 곑μ μΆκ°
roomData[data.roomCode].songTags.forEach(wantTag => {
if (song.tags.includes(wantTag)) {
isHave = true;
return false;
}
});
return isHave;
}));
shuffle(roomData[data.roomCode].songList);
if (roomData[data.roomCode].songList.length > roomData[data.roomCode].maxSongNum) {
roomData[data.roomCode].songList = roomData[data.roomCode].songList.slice(0, roomData[data.roomCode].maxSongNum);
}
io.to(ROOM_CODE + data.roomCode).emit('game start', { songLength: roomData[data.roomCode].songList.length });
// ν΄λΌμμ 5μ΄ν κ²μ μμ ν μ μκ² λ³κ²½λ¨
// nextSong(data.roomCode);
} catch (e) {
console.log('game start', e);
}
});
//================================
// Disconnecting
socket.on('disconnecting', function() {
console.log("disconnect : ", socket.id);
try {
// μν΄μλ λ°©μ΄ μλ€λ©΄ μ²λ¦¬ν¨
socket.rooms.forEach((roomCode) => {
// ν΄λΉ λ°©μλ ROOM_CODE κ°μ΄ λ€μ΄κ° μλ λ°©μ΄κΈ° λλ¬Έμ κ·Έ ν¬κΈ°λ§νΌ 지λΌμ€
outRoomCheck(roomCode.slice(ROOM_CODE.length), socket.id);
})
} catch (e) {
console.log('disconnect', e);
}
});
});
module.exports = app;