00d960e441
This wastes one byte on each universe buffer and will require you to update your configs and animations but hopefully prevent confusion and off-by-one errors in the future.
59 lines
1.2 KiB
JavaScript
59 lines
1.2 KiB
JavaScript
'use strict'
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var dgram = require('dgram')
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var UNIVERSE_LEN = 512
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function BBDMX(device_id, options) {
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var self = this
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self.options = options || {}
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self.universe = new Buffer(UNIVERSE_LEN + 1)
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self.universe.fill(0)
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self.host = device_id || '127.0.0.1'
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self.port = self.options.port || 9930
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self.dev = dgram.createSocket('udp4')
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self.sleepTime = 24
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self.start()
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}
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BBDMX.prototype.send_universe = function() {
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var channel
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var messageBuffer = new Buffer(UNIVERSE_LEN.toString())
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for (var i = 1; i <= UNIVERSE_LEN; i++) {
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channel = new Buffer(' ' + this.universe[i])
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messageBuffer = Buffer.concat([messageBuffer, channel])
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}
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this.dev.send(messageBuffer, 0, messageBuffer.length, this.port, this.host)
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}
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BBDMX.prototype.start = function() {
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this.timeout = setInterval(this.send_universe.bind(this), this.sleepTime)
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}
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BBDMX.prototype.stop = function() {
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clearInterval(this.timeout)
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}
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BBDMX.prototype.close = function(cb) {
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this.stop()
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cb(null)
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};
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BBDMX.prototype.update = function(u) {
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for (var c in u) {
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this.universe[c] = u[c]
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}
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}
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BBDMX.prototype.updateAll = function(v) {
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for (var i = 1; i <= UNIVERSE_LEN; i++) {
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this.universe[i] = v
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}
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}
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BBDMX.prototype.get = function(c) {
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return this.universe[c]
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}
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module.exports = BBDMX
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