public update()

in sim/visuals/neopixel.ts [118:147]

• 27 lines of code
• 8 McCabe index (conditional complexity)

        public update(colors: RGBW[]) {
            if (!colors || colors.length <= 0)
                return;

            for (let i = 0; i < colors.length; i++) {
                let pixel = this.pixels[i];
                if (!pixel) {
                    let cxy: Coord = [0, CANVAS_VIEW_PADDING + i * PIXEL_SPACING];
                    pixel = this.pixels[i] = new NeoPixel(cxy);
                    svg.hydrate(pixel.el, { title: `offset: ${i}` });
                    this.canvas.appendChild(pixel.el);
                }
                let color = colors[i];
                pixel.setRgb(color);
            }

            //show the canvas if it's hidden
            svg.removeClass(this.background, "hidden");

            //resize if necessary
            let [first, last] = [this.pixels[0], this.pixels[this.pixels.length - 1]]
            let yDiff = last.cy - first.cy;
            let newH = yDiff + CANVAS_VIEW_PADDING * 2;
            let [oldX, oldY, oldW, oldH] = this.viewBox;
            if (oldH < newH) {
                let scalar = newH / oldH;
                let newW = oldW * scalar;
                this.updateViewBox(-newW / 2, oldY, newW, newH);
            }
        }