-
-
Save B0bby/c50f849b18981e487ba1 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
var dgram = require('dgram'); | |
var client = dgram.createSocket('udp4'); | |
var express = require('express'); | |
var app = express(); | |
var http = require('http'); | |
var server = http.createServer(app); | |
app.use(express.static(__dirname + '/static')); | |
server.listen(8888); | |
var timeout = -1; | |
var color = {r: 0, g: 0, b: 0}; | |
var brightness = 0; | |
var lastBrightness = 255; | |
function sendColor(r, g, b){ | |
if(!isNaN(r) && !isNaN(g) && !isNaN(b) | |
&& r >= 0 && g >= 0 && b >= 0 | |
&& r < 256 && g < 256 && b < 256){ | |
color = {r: r, g: g, b: b}; | |
var msg = new Buffer([0x23, r, g, b, 0x0a]); | |
client.send(msg, 0, msg.length, 8888, "192.168.0.20"); | |
return true; | |
}return false; | |
} | |
function sendBrightness(n){ | |
if(!isNaN(n) && n >= 0 && n < 256){ | |
brightness = n; | |
msg = new Buffer([0x25, n, 0x0a]); | |
client.send(msg, 0, msg.length, 8888, "192.168.0.20"); | |
return true; | |
}return false; | |
} | |
app.get("/hex/:hex", function(req, res){ | |
var color = hexToRgb(req.params.hex); | |
if(sendColor(color.r, color.g, color.b)) | |
res.send("."); | |
else | |
res.send("Bad color (should be HTML-like hex string without hash symbol)."); | |
}); | |
app.get("/rgb/:r/:g/:b", function(req, res){ | |
if(sendColor(parseInt(req.params.r), | |
parseInt(req.params.g), | |
parseInt(req.params.b))) | |
res.send("."); | |
else | |
res.send("Bad color (should be 3 slash-delimited bytes)."); | |
}); | |
app.get("/brightness/:brightness", function(req, res){ | |
var input = parseInt(req.params.brightness); | |
if(sendBrightness(input)){ | |
lastBrightness = input; | |
res.send("."); | |
}else | |
res.send("Bad brightness (should be a single byte)."); | |
}); | |
app.get("/keepAlive", function(req, res){ | |
if(timeout !== -1) | |
clearTimeout(timeout); | |
timeout = setTimeout(goDark, 5 * 60000); | |
if(brightness !== lastBrightness) | |
sendBrightness(lastBrightness); | |
res.send("."); | |
}); | |
function goDark(){ | |
if(timeout !== -1) | |
clearTimeout(timeout); | |
timeout = -1; | |
sendBrightness(0); | |
} | |
function hexToRgb(hex){ | |
var result = /^([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); | |
return result ? { | |
r: parseInt(result[1], 16), | |
g: parseInt(result[2], 16), | |
b: parseInt(result[3], 16) | |
} : null; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment