406 lines
7.3 KiB
JavaScript
406 lines
7.3 KiB
JavaScript
var express = require("express");
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var serialport = require("serialport");
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var SerialPort = serialport.SerialPort;
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var serialPort = new SerialPort(process.argv[2], {
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baudrate: 115200,
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flowControl: false
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});
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/*serialport.list((err, ports) => {
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console.log(ports);
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});*/
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var lightstate = true;
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var tT;
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var leds = 16;//273;
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var toHue = function (s) {
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return Math.floor(s / 64 * 256 % 256);
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};
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var hslToRgb = function (h, s, l) {
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var r, g, b;
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if (s == 0) {
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r = g = b = l; // achromatic
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} else {
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var hue2rgb = function (p, q, t) {
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if(t < 0) t += 1;
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if(t > 1) t -= 1;
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if(t < 1/6) return p + (q - p) * 6 * t;
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if(t < 1/2) return q;
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if(t < 2/3) return p + (q - p) * (2/3 - t) * 6;
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return p;
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}
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var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
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var p = 2 * l - q;
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r = hue2rgb(p, q, h + 1/3);
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g = hue2rgb(p, q, h);
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b = hue2rgb(p, q, h - 1/3);
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}
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return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
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};
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var state = 3;//42;
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var lightness = 0.8;
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var h;
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var i = toHue(state);
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var sp = 1;
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var writeLED = function (i, r, g, b, cb) {
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serialPort.write(new Buffer([0x12, i, r, g, b]), function () {
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//serialPort.drain(function (err) {
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// cb(err);
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cb();
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//});
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});
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};
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var update = function (cb) {
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serialPort.write(new Buffer([0x11]), function () {
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//serialPort.drain(function (err) {
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// cb(err);
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cb();
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//});
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});
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};
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var writeAllLED = function (color, cb) {
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var buff = [];
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for (var i = 0; i < leds; i++) {
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var c = color(i);
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buff.push(0x12, i, c[0], c[1], c[2]);
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}
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var chunksize = 5;
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var j = 0;
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var loop = function () {
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serialPort.write(new Buffer(buff.slice(j, j + chunksize)), function () {
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//serialPort.drain(function (err) {
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j += chunksize;
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if (j < buff.length) {
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loop();
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}
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else {
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cb();
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}
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//});
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});
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};
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loop();
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};
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var flash = function (color, cb) {
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writeAllLED(color, function () {
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update(cb);
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});
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};
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var slide = function (color, cb, time) {
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var i = -1;
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var loop = function () {
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i++;
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if (i < leds) {
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var c = color(i);
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tT = setTimeout(function () {
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writeLED(i, c[0], c[1], c[2], function () {
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update(loop);
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});
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}, time || 30);
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}
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else {
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cb();
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}
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};
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loop();
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};
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var fade = function (color, cb) {
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};
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var isdone = true;
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serialPort.on("open", function () {
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serialPort.on("data", function (d) {
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var i = 0;
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var read = () => {
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if (d.length == i)
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return null;
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return d[i++];
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};
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var cmd;
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while (cmd = read()) {
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if (cmd == 0x17) {
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var n = read();
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if (n === null) {
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break;
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}
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var lstate = n == 0xff;
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// lstate
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//lstate slide(() => { return [0, 0, 0]; }, () => {}, 20);
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if (lstate) {
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//console.log("Tapped");
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//var a = () => {
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// if (isdone) {
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lightstate = !lightstate;
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// isdone = false;
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//setLightness(lightstate ? 0 : 0.8, () => {
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// isdone = true;
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//});
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var color = hslToRgb(toHue(state) / 256, 1, lightstate ? lightness : 0);
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flash(() => {
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return color;
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}, () => {
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// isdone = true;
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});
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// }
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// else {
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// setTimeout(a, 10);
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// }
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//};
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//a();
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}
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else {
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//console.log("down");
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}
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}
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}
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});
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/*
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setTimeout(function () {
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var bytes = [];
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bytes.push();
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for (var i = 0; i < leds; i++) {
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bytes.push(0x12, i, 0, 0, 255);
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}
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bytes.push(0x11);
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var data = new Buffer(bytes);
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console.log(data);
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serialPort.write(data);
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serialPort.drain(function (err, results) {
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console.log("all blue");
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});
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}, 5000);
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*/
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var a = function () {
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slide(function (i) {
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return [0, 0, 255];
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}, function () {
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slide(function (i) {
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return [255, 0, 0];
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}, function () {
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slide(function (i) {
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return [0, 255, 0];
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}, function () {
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a();
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});
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});
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});
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};
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//a();
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});
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var app = express();
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app.get("/get", function (req, res) {
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res.end(state + "");
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});
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app.get("/set/:i", function (req, res) {
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state = req.params.i * 1;
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//console.log("3," + Math.floor(state / 64 * 256 % 256));
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res.status(200).end();
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if (h) {
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clearInterval(h);
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}
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h = setInterval(function () {
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if (i - toHue(state) > toHue(state) - i + 255) {
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i += sp;
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}
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else if (toHue(state) - i > i - toHue(state) + 255) {
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i -= sp;
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}
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else if (toHue(state) < i) {
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i -= sp;
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}
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else if (toHue(state) > i) {
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i += sp;
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}
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if (i > 255) {
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i = 0;
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}
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else if (i < 0) {
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i = 255;
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}
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if (Math.floor(toHue(state) / sp * 2) == Math.floor(i / sp * 2)) {
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i = toHue(state);
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clearInterval(h);
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}
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flash(function (la) {
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return hslToRgb(i / 256, 1, lightness);
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}, function () {
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});
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}, 20);
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});
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var lightnessT;
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var setLightness = (l, done, delay) => {
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//clearTimeout(lightnessT);
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//clearTimeout(tT);
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var from = lightness;
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var to = l * 1;
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var a = function () {
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flash(function (la) {
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return hslToRgb(toHue(state) / 256, 1, lightness);
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}, function () {
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lightness = lightness + (to - from) * 0.02;
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if ((to - from) < 0 ? lightness > to : lightness < to) {
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lightnessT = setTimeout(function () {
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a();
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}, delay == undefined ? 16 : delay);
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}
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else {
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lightness = to;
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lightnessT = setTimeout(() => {
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flash(() => {
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return hslToRgb(toHue(state) / 256, 1, lightness);
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}, () => {
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done && done();
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});
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}, delay == undefined ? 16 : delay);
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}
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});
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};
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a();
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};
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app.get("/lightness/set/:i", function (req, res) {
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res.status(200).end();
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setLightness(req.params.i);
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});
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app.get("/demo1/start", function (req, res) {
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res.status(200).end();
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var a = function () {
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slide(function (la) {
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return hslToRgb(0, 1, 0);
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}, function () {
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setTimeout(b, 500);
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}, Math.floor(1000 / leds));
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};
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var b = function () {
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slide(function (la) {
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return hslToRgb(la / leds, 1, 0.5);
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}, function () {
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c(0);
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}, Math.floor(1000 / leds));
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};
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var c = function (i) {
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flash(function (la) {
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return hslToRgb((la / leds + i / 150) % 1 , 1, 0.5);
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}, function () {
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if (i < 400) {
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setTimeout(function () {
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c(i + 1);
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}, 16);
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}
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else {
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d(0);
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}
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});
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};
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var d = function () {
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slide(function (la) {
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return hslToRgb(0, 1, 0);
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}, function () {
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e(0);
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}, Math.floor(1000 / leds));
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};
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var e = function (i) {
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slide(function (la) {
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return hslToRgb((la / leds / 16 + i / 10) % 1, 1, 0.5);
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}, function () {
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if (i < 199) {
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e(i + 1);
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}
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else {
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f();
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}
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}, 50 / (i / 200 * 50));
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};
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var f = function () {
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slide(function (la) {
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return hslToRgb(i / 256, 1, 0.5);
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}, function () {
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}, Math.floor(1000 / leds));
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};
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a();
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});
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var demo2 = false;
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app.get("/demo2/start", function (req, res) {
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res.status(200).end();
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demo2 = true;
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var a = function () {
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slide(function (la) {
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return hslToRgb(la / leds, 1, 0.5);
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}, function () {
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b(0);
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}, Math.floor(1000 / leds));
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};
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var b = function (i) {
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flash(function (la) {
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return hslToRgb((la / leds + i / 150) % 1 , 1, 0.5);
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}, function () {
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if (demo2) {
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setTimeout(function () {
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b(i + 1);
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if (i == 30000) {
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i = 0;
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}
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}, 16);
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}
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else {
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c();
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}
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});
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};
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var c = function () {
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slide(function (la) {
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return hslToRgb(i / 256, 1, 0.5);
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}, function () {
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}, Math.floor(1000 / leds));
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};
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a();
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});
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app.get("/demo2/stop", function (req, res) {
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res.status(200).end();
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demo2 = false;
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});
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app.listen(8026);
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