thingzi-logic-twinkly/lib/movie.js

Twinkly lights control via node red

const {Frame} = require("./frame");

class Movie {
    constructor(ledCount, delay, frameCount) {
        this.frames = new Array(frameCount);
        this.ledCount = ledCount;
        this.delay = delay;
        this.frameCount = frameCount;
    }

    static repeatedColors(ledCount, colors) {
        let movie = new Movie(ledCount, 1, 1);
        movie.put(0, Frame.repeatedColors(ledCount, colors));
        return movie;
    }

    static twinklingColors(ledCount, frameCount, delay, colors) {
        let movie = new Movie(ledCount, delay, frameCount);
        for (let i = 0; i < frameCount; i++) {
            let frame = Frame.repeatedColors(ledCount, colors);
            frame.addTwinkle(2, 0.85);
            movie.put(i, frame);
        }
        return movie;
    }

    static blinkingColors(ledCount, delay, colors) {
        let movie = new Movie(ledCount, delay, colors.length);
        for (let i = 0; i < colors.length; i++) {
            movie.put(i, Frame.singleColor(ledCount, colors[i]));
        }
        return movie;
    }

    static loopingColors(ledCount, delay, colors) {
        let movie = new Movie(ledCount, delay, colors.length);
        for (let i = 0; i < colors.length; i++) {
            colors.push(colors.shift());
            movie.put(i, Frame.repeatedColors(ledCount, colors));
        }
        return movie;
    }

    get(index) {
        return this.frames[index];
    }

    put(index, frame) {
        this.frames[index] = frame;
    }

    getArray(ledProfile) {
        let frameLength = this.ledCount * ledProfile.length;
        let array = new Uint8Array(this.frameCount * frameLength);
        for (let i = 0; i < this.frameCount; i++) {
            let frame = this.frames[i].getArray(ledProfile);
            console.assert(frame.length === frameLength);

            for (let frameIndex = 0; frameIndex < frameLength; frameIndex++) {
                array[frameLength * i + frameIndex] = frame[frameIndex];
            }
        }
        return array;
    }
};

exports.Movie = Movie;