Press n or j to go to the next uncovered block, b, p or k for the previous block.
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const Packet = {
size: 2
};
/**
* 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) {
const obj = {};
let offset = 0;
if (buf.length !== this.size) {
throw new Error('Invalid length given for setInfrared LIFX packet');
}
obj.brightness = buf.readUInt16LE(offset);
offset += 2;
return obj;
};
/**
* Converts the given packet specific object into a packet
* @param {Object} obj object with configuration data
* @param {Number} obj.brightness between 0 and 65535
* @return {Buffer} packet
*/
Packet.toBuffer = function(obj) {
const buf = Buffer.alloc(this.size);
buf.fill(0);
let offset = 0;
Iif (typeof obj.brightness !== 'number' && obj.brightness < 0 && obj.brightness > 65535) {
throw new RangeError('Invalid brightness given for setInfrared LIFX packet, must be a number between 0 and 65535');
}
buf.writeUInt16LE(obj.brightness, offset);
offset += 2;
return buf;
};
module.exports = Packet;
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