xled-js/dist/lib/movie.js

Library to control Twinkly LED lights

export class Movie {
    constructor(data) {
        this.id = data.id || 0;
        this.name = data.name || "xled-js effect";
        this.unique_id = data.unique_id || generateUUID();
        this.descriptor_type = data.descriptor_type || "rgb_raw";
        this.leds_per_frame = data.leds_per_frame || 0;
        this.frames_number = data.frames_number || 0;
        this.fps = data.fps || 0;
        this.frameData = data.frames || null;
        if (this.frameData) {
            this.frames_number = this.frameData.length;
            this.leds_per_frame = this.frameData[0].getNLeds();
        }
    }
    export() {
        return {
            // id: this.id,
            name: this.name,
            unique_id: this.unique_id,
            descriptor_type: this.descriptor_type,
            leds_per_frame: this.leds_per_frame,
            frames_number: this.frames_number,
            fps: this.fps,
        };
    }
    toOctet() {
        const frames = this.frameData;
        this.frames_number = frames.length;
        this.leds_per_frame = frames[0].getNLeds();
        const output = new Uint8Array(this.frames_number * this.leds_per_frame * 3);
        frames.forEach((frame, index) => {
            if (frame.getNLeds() != this.leds_per_frame)
                throw new Error("Frames must all be the same length");
            // convert to octet
            let octet = frame.toOctet();
            // add octet to output
            let offset = index * this.leds_per_frame * 3;
            output.set(octet, offset);
        });
        // this.frameData = output;
        return output.buffer;
    }
}
function generateUUID() {
    return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
        const r = (Math.random() * 16) | 0;
        const v = c === "x" ? r : (r & 0x3) | 0x8;
        return v.toString(16);
    });
}