all files / lib/lifx/packets/ stateDeviceChain.js

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'use strict';
 
var Packet = {
  size: 1 + 16 * (2 + 2 + 2 + 2 + 4 + 4 + 1 + 1 + 1 + 4 + 4 + 4 + 8 + 8 + 2 + 2 + 4) + 1,
  Tile: {
    toObject: function toObject(buf, offset) {
      var tile = {};
      tile.accelMeasX = buf.readUInt16LE(offset);
      offset += 2;
      tile.accelMeasY = buf.readUInt16LE(offset);
      offset += 2;
      tile.accelMeasZ = buf.readUInt16LE(offset);
      offset += 2;
      tile.reserved0 = buf.readUInt16LE(offset);
      offset += 2;
      tile.userX = buf.readUInt32LE(offset);
      offset += 4;
      tile.userY = buf.readUInt32LE(offset);
      offset += 4;
      tile.width = buf.readUInt8(offset);
      offset += 1;
      tile.height = buf.readUInt8(offset);
      offset += 1;
      tile.reserved1 = buf.readUInt8(offset);
      offset += 1;
      tile.deviceVersionVendor = buf.readUInt32LE(offset);
      offset += 4;
      tile.deviceVersionProduct = buf.readUInt32LE(offset);
      offset += 4;
      tile.deviceVersionVersion = buf.readUInt32LE(offset);
      offset += 4;
      tile.firmwareBuild = {
        low: buf.readUInt32LE(offset),
        high: buf.readUInt32LE(offset + 4)
      };
      offset += 8;
      tile.reserved2 = {
        low: buf.readUInt32LE(offset),
        high: buf.readUInt32LE(offset + 4)
      };
      offset += 8;
      tile.firmwareVersionMinor = buf.readUInt16LE(offset);
      offset += 2;
      tile.firmwareVersionMajor = buf.readUInt16LE(offset);
      offset += 2;
      tile.reserved3 = buf.readUInt32LE(offset);
      offset += 4;
      return { offset, tile };
    }
  }
};
 
/**
 * Converts packet specific data from a buffer to an object
 * @param  {Buffer} buf Buffer containing only packet specific data no header
 * @return {Object}     Information contained in packet
 */
Packet.toObject = function (buf) {
  Iif (buf.length !== this.size) {
    throw new Error(`Invalid length given for stateDeviceChain LIFX packet:${buf.length}:${this.size}`);
  }
  var offset = 0;
  var obj = {};
  obj.startIndex = buf.readUInt8(offset);
  offset += 1;
  obj.tileDevices = new Array(16).fill(undefined).map(function () {
    var ret = Packet.Tile.toObject(buf, offset);
    offset = ret.offset;
    return ret.tile;
  });
  obj.totalCount = buf.readUInt8(offset);
  offset += 1;
  return obj;
};
 
module.exports = Packet;