Created
April 18, 2018 02:50
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socket drawing
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| <!-- in public folder --> | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta name="viewport" width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0> | |
| <style> body {padding: 0; margin: 0;} </style> | |
| <script src="p5.min.js"></script> | |
| <script src="/socket.io/socket.io.js"></script> | |
| <!-- <script src="../addons/p5.dom.min.js"></script> --> | |
| <!-- <script src="../addons/p5.sound.min.js"></script> --> | |
| <script src="sketch.js"></script> | |
| </head>344 | |
| <body> | |
| </body> | |
| </html> |
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| var express = require('express'); | |
| var app = express(); | |
| var http = require('http').Server(app); | |
| var io = require('socket.io')(http); | |
| app.use(express.static('public')); | |
| io.on('connection', function(socket){ | |
| console.log('a user connected', socket.id); | |
| socket.on('brush', function(brushData) { | |
| console.log('brush', brushData); | |
| socket.broadcast.emit('brush', brushData); | |
| }); | |
| }); | |
| http.listen(3000, function(){ | |
| console.log('listening on *:3000'); | |
| }); |
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| // in public folder | |
| var socket; | |
| var myColor; | |
| function setup() { | |
| socket = io(); | |
| myColor = { r:random(255), g:random(255), b:random(255) } | |
| // draw remote brush strokes | |
| socket.on('brush', function(brushData) { | |
| // we expect brushData.x, brushData.y, brushData.color | |
| stroke(brushData.color.r, brushData.color.g, brushData.color.b); | |
| line(brushData.x, brushData.y, brushData.px, brushData.py); | |
| }); | |
| createCanvas(displayWidth, displayHeight); | |
| strokeWeight(10) | |
| stroke(0); | |
| } | |
| function mouseDragged() { | |
| stroke(myColor.r, myColor.g, myColor.b); | |
| line(mouseX, mouseY, pmouseX, pmouseY); | |
| socket.emit('brush', {x:mouseX, | |
| y:mouseY, | |
| px:pmouseX, | |
| py:pmouseY, | |
| color:myColor}); | |
| return false; | |
| } |
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