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@MikeShi42 MikeShi42/index.js
Created Aug 9, 2018

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competitive-2048 index.js
const express = require('express');
const socketio = require('socket.io');
const http = require('http');
const app = express();
const server = http.Server(app);
const io = socketio(server); // Attach socket.io to our server
app.use(express.static('public')); // Serve our static assets from /public
server.listen(3000, () => console.log('server started'));
const connections = [null, null];
// Handle a socket connection request from web client
io.on('connection', function (socket) {
// Find an available player number
let playerIndex = -1;
for (var i in connections) {
if (connections[i] === null) {
playerIndex = i;
}
}
// Tell the connecting client what player number they are
socket.emit('player-number', playerIndex);
// Ignore player 3
if (playerIndex == -1) return;
connections[playerIndex] = socket;
// Tell everyone else what player number just connected
socket.broadcast.emit('player-connect', playerIndex);
socket.on('actuate', function (data) {
const { grid, metadata } = data; // Get grid and metadata properties from client
const move = {
playerIndex,
grid,
metadata,
};
// Emit the move to all other clients
socket.broadcast.emit('move', move);
});
socket.on('disconnect', function() {
console.log(`Player ${playerIndex} Disconnected`);
connections[playerIndex] = null;
});
});
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