57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
'use strict';
|
|
|
|
const dgram = require('dgram');
|
|
|
|
function BBDMX(device_id, options) {
|
|
const self = this;
|
|
self.options = options || {};
|
|
self.universe = new Buffer(512);
|
|
self.universe.fill(0);
|
|
self.host = device_id || '127.0.0.1';
|
|
self.port = self.options.port || 9930;
|
|
self.dev = dgram.createSocket('udp4');
|
|
self.sleepTime = 24;
|
|
self.start();
|
|
}
|
|
|
|
BBDMX.prototype.send_universe = function() {
|
|
let messageBuffer = new Buffer(`${this.universe.length} `);
|
|
|
|
for (let i = 0; i < this.universe.length; i++) {
|
|
const channel = new Buffer(`${this.universe[i]} `);
|
|
const length = channel.length + messageBuffer.length;
|
|
messageBuffer = Buffer.concat([messageBuffer, channel], length);
|
|
}
|
|
this.dev.send(messageBuffer, 0, messageBuffer.length, this.port, this.host);
|
|
};
|
|
|
|
BBDMX.prototype.start = function() {
|
|
this.timeout = setInterval(this.send_universe.bind(this), this.sleepTime);
|
|
};
|
|
|
|
BBDMX.prototype.stop = function() {
|
|
clearInterval(this.timeout);
|
|
};
|
|
|
|
BBDMX.prototype.close = function(cb) {
|
|
this.stop();
|
|
cb(null);
|
|
};
|
|
|
|
BBDMX.prototype.update = function(u) {
|
|
for (let c in u) {
|
|
this.universe[c] = u[c];
|
|
}
|
|
};
|
|
|
|
BBDMX.prototype.updateAll = function(v) {
|
|
for (let i = 0; i < 512; i++) {
|
|
this.universe[i] = v;
|
|
}
|
|
};
|
|
|
|
BBDMX.prototype.get = function(c) {
|
|
return this.universe[c];
|
|
};
|
|
|
|
module.exports = BBDMX;
|