dmx-flok/drivers/bbdmx.js

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'use strict'
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var dgram = require('dgram')
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function BBDMX(device_id, options) {
var 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()
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}
BBDMX.prototype.send_universe = function() {
var channel
var messageBuffer = new Buffer(this.universe.length.toString())
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for (var i = 0; i < this.universe.length; i++) {
channel = new Buffer(' ' + this.universe[i])
messageBuffer = Buffer.concat([messageBuffer, channel])
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}
this.dev.send(messageBuffer, 0, messageBuffer.length, this.port, this.host)
}
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BBDMX.prototype.start = function() {
this.timeout = setInterval(this.send_universe.bind(this), this.sleepTime)
}
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BBDMX.prototype.stop = function() {
clearInterval(this.timeout)
}
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BBDMX.prototype.close = function(cb) {
this.stop()
cb(null)
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};
BBDMX.prototype.update = function(u) {
for (var c in u) {
this.universe[c] = u[c]
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}
}
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BBDMX.prototype.updateAll = function(v) {
for (var i = 0; i < 512; i++) {
this.universe[i] = v
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}
}
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BBDMX.prototype.get = function(c) {
return this.universe[c]
}
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module.exports = BBDMX