73 lines
1.5 KiB
JavaScript
73 lines
1.5 KiB
JavaScript
"use strict"
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var dgram = require('dgram')
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function EnttecODE(device_id, options) {
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var self = this
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self.header = new Buffer([65, 114, 116, 45, 78, 101, 116, 0, 0, 80, 0, 14])
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self.sequence = new Buffer([0])
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self.physical = new Buffer([0])
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self.universe_id = new Buffer([0x00, 0x00])
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self.length = new Buffer([0x02, 0x00])
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self.universe = new Buffer(513)
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self.universe.fill(0)
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self.sleepTime = 24
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options = options || {}
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self.universe_id.writeInt16BE(options.universe || 0, 0)
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self.host = device_id || '127.0.0.1'
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self.port = options.port || 6454
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self.dev = dgram.createSocket('udp4')
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self.dev.bind(function() {
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self.dev.setBroadcast(true)
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})
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self.start()
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}
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EnttecODE.prototype.send_universe = function() {
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var pkg = Buffer.concat([
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this.header,
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this.sequence,
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this.physical,
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this.universe_id,
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this.length,
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this.universe.slice(1)
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])
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this.dev.send(pkg, 0, pkg.length, this.port, this.host)
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}
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EnttecODE.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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EnttecODE.prototype.stop = function() {
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clearInterval(this.timeout)
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}
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EnttecODE.prototype.close = function(cb) {
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this.stop()
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cb(null)
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}
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EnttecODE.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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EnttecODE.prototype.updateAll = function(v) {
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for (var i = 1; i <= 512; i++) {
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this.universe[i] = v
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}
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}
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EnttecODE.prototype.get = function(c) {
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return this.universe[c]
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}
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module.exports = EnttecODE
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