Made the ambient mode nicer

[kaka/cakelight.git] / src / kaka / cakelight / AmbientMode.java

package kaka.cakelight;

public class AmbientMode extends Mode { // TODO split into DynamicAmbient and StaticAmbient?
    private Thread thread; // TODO move to a dynamic sub class
    private Configuration config;

    @Override
    public void enter(Configuration config) {
        this.config = config;
        startThread();
    }

    @Override
    public void exit() {
        stopThread();
    }

    public void startThread() {
        thread = new Thread() {
            public void run() {
                try {
                    long start = System.currentTimeMillis();
                    int index = 0;
                    while (!isInterrupted()) {
                        LedFrame frame = LedFrame.from(config);
                        updateFrame(frame, System.currentTimeMillis() - start, index);
                        updateWithFrame(frame);
                        index = (index + 1) % config.leds.getCount();
                        Thread.sleep(0);
                    }
                } catch (InterruptedException e) {
                }
            }
        };
        thread.start();
    }

    public void stopThread() {
        thread.interrupt();
    }

    /**
     * @param frame
     * @param time  Time in milliseconds since start
     * @param count Goes from 0 to number of LEDs - 1
     */
    private void updateFrame(LedFrame frame, long time, int count) {
        for (int i = 0; i < config.leds.getCount(); i++) {
            double r = Math.sin(2 * i * Math.PI / config.leds.getCount() + time * 0.001) * 0.5 + 0.5;
            double g = Math.cos(2 * i * Math.PI / config.leds.getCount() + time * 0.002) * 0.5 + 0.5;
            frame.setLedColor(i, Color.rgb(r, g, 0));
        }
    }
}