nkellenicki/node-legodimensions
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Added fade and get color, supports callbacks

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This commit is contained in:
Nathan Kunicki 2018-02-07 12:42:09 +00:00
parent f8ba41fc60
commit 13abc9f5d4
2 changed files with 89 additions and 36 deletions
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13
examples/rgb.js
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@ -36,15 +36,7 @@ toyPad.on("add", (data) => {
}
PanelStates[data.panel] = PanelStates[data.panel] | Colors[name.toUpperCase()];
toyPad.setColor(data.panel, PanelStates[data.panel]);
toyPad.flash(data.panel, Colors[name.toUpperCase()], 4);
setTimeout(() => {
toyPad.getColor(data.panel, (blah) => {
console.log(blah);
});
}, 3000);
toyPad.fade(data.panel, 20, 1, PanelStates[data.panel]);
});
@ -59,8 +51,7 @@ toyPad.on("remove", (data) => {
}
PanelStates[data.panel] = PanelStates[data.panel] ^ Colors[name.toUpperCase()];
toyPad.setColor(data.panel, PanelStates[data.panel]);
toyPad.fade(data.panel, 15, 1, PanelStates[data.panel]);
});

110
src/toypad.js
View File

@ -1,10 +1,10 @@
const EventEmitter = require("events").EventEmitter,
const {EventEmitter} = require("events"),
HID = require("node-hid"),
debug = require("debug")("LegoDimensions");
const minifigData = require("../data/minifigs.json");
let Minifig = {};
const Minifig = {};
Object.keys(minifigData).forEach((sig) => {
Minifig[minifigData[sig].toUpperCase().replace(/\W+/g, "_")] = sig;
@ -39,11 +39,33 @@ const Panel = {
const Request = {
GET_COLOR: 0xc1,
FADE: 0xc2,
SET_COLOR: 0xc0,
FLASH: 0xc3
}
class Callback {
constructor (type, callback) {
this.type = type;
this.callback = callback;
}
}
class EmitPayload {
constructor (panel, sig, recognised) {
this.panel = panel;
this.sig = sig;
this.recognised = recognised;
}
}
class ToyPad extends EventEmitter {
@ -112,21 +134,15 @@ class ToyPad extends EventEmitter {
this._device.on("data", (data) => {
let type = data[0],
const type = data[0],
cmd = data[1];
if (type === Type.RESPONSE && cmd == Command.CONNECTED) {
this.emit("connect");
} else if (type === Type.EVENT && cmd == Command.ACTION) {
if (type === Type.EVENT && cmd == Command.ACTION) {
let action = data[5],
const action = data[5],
sig = ToyPad._bufferToHexString(data.slice(7, 13));
let emitPayload = {
panel: data[2],
sig: sig,
recognized: !!minifigData[sig]
};
const emitPayload = new EmitPayload(data[2], sig, !!minifigData[sig]);
if (action == Action.ADD) {
this.emit("add", emitPayload);
@ -136,6 +152,17 @@ class ToyPad extends EventEmitter {
} else if (type === Type.RESPONSE) {
if (cmd == Command.CONNECTED) {
this.emit("connect");
return;
}
const length = data[1],
requestId = data[2],
payload = data.slice(3, 2 + length);
this._processCallback(requestId, payload);
}
});
@ -154,31 +181,36 @@ class ToyPad extends EventEmitter {
getColor (panel, callback) {
let data = [
this._requestId++ & 0xff,
const params = [
(panel - 1) & 0xff
];
this._send([(data.length + 1) & 0xff, Request.GET_COLOR].concat(data), callback);
this._send(Request.GET_COLOR, params, callback);
}
_getColorResponse (callback, data) {
let color = data[2];
color += data[1] << 8;
color += data[0] << 16;
callback(null, color);
}
setColor (panel, color, callback) {
let data = [
this._requestId++ & 0xff,
const params = [
panel & 0xff,
(color >> 16) & 0xff,
(color >> 8) & 0xff,
color & 0xff
];
this._send([(data.length + 1) & 0xff, Request.SET_COLOR].concat(data), callback);
this._send(Request.SET_COLOR, params, callback);
};
flash (panel, color, count, options = {}, callback) {
options.offTicks = options.offTicks || 10;
options.onTicks = options.onTicks || 10;
let data = [
this._requestId++ & 0xff,
const params = [
panel & 0xff,
options.offTicks & 0xff,
options.onTicks & 0xff,
@ -187,10 +219,23 @@ class ToyPad extends EventEmitter {
(color >> 8) & 0xff,
color & 0xff
];
this._send([(data.length + 1) & 0xff, Request.FLASH].concat(data), callback);
this._send(Request.FLASH, params, callback);
};
fade (panel, speed, cycles, color, callback) {
const params = [
panel & 0xff,
speed & 0xff,
cycles & 0xff,
(color >> 16) & 0xff,
(color >> 8) & 0xff,
color & 0xff
];
this._send(Request.FADE, params, callback);
}
_wake () {
this._device.write([0x00,
0x55, 0x0f, 0xb0, 0x01,
@ -204,11 +249,28 @@ class ToyPad extends EventEmitter {
}
_send (data, callback) {
_processCallback (requestId, payload) {
const callback = this._callbacks[requestId];
if (callback) {
this._callbacks[data[3]] = callback;
delete this._callbacks[requestId];
switch (callback.type) {
case Request.GET_COLOR:
this._getColorResponse(callback.callback, payload);
break;
default:
callback.callback(null);
break;
}
this._device.write(ToyPad._pad(ToyPad._checksum([Type.RESPONSE].concat(data))));
}
}
_send (type, params, callback) {
const requestId = (++this._requestId) & 0xff;
if (callback) {
this._callbacks[requestId] = new Callback(type, callback);
}
this._device.write(ToyPad._pad(ToyPad._checksum([Type.RESPONSE, (params.length + 2) & 0xff, type, requestId].concat(params))));
}