Run from 0 to 255

Question

I ve got class Background:

public class Background extends Sprite {
    private Color color;
    private int COLOR_SIZE = 255;



    @Override
    void update(GameCanvas canvas, float deltaTime) {
        for (int i = 0; i < COLOR_SIZE ; i++) {
            color = new Color(
                    (int)(Math.random() * i),
                    (int)(Math.random() * i),
                    (int)(Math.random() * i)
            );
        }
    }

    @Override
    void render (GameCanvas canvas, Graphics g){
        g.setColor(color);
        g.fillRect(canvas.getX(), canvas.getY(), canvas.getWidth(), canvas.getHeight());
    }

}

I need for my background to dynamically change color. I figured to get value from 0 to 255 and run it in for-loop. Problem is loop is run very fast. And color of background change very fast, how to slow for-loop or run from 0 to 255 but not so fast?

It does not make sense to change the colour in every update if you have 60FPS for example. You can change the colour when for example a [certain time](https://stackoverflow.com/questions/4044726/how-to-set-a-timer-in-java) has passed. — flaxel, Sep 26 '20 at 14:53
For animation you use a [Swing Timer](https://docs.oracle.com/javase/tutorial/uiswing/misc/timer.html) to schedule the event. See: https://stackoverflow.com/a/33907282/131872 for a simple example. — camickr, Sep 26 '20 at 14:57
@flaxel, don't use a `java.util.Timer`. Updates to Swing components should be done on the Event Dispatch Thread, which is why you need to use the Swing Timer. — camickr, Sep 26 '20 at 15:01
@camickr Yes of course. I want to share [this answer](https://stackoverflow.com/a/11525936/10951752). I found also a [nice tutorial](https://examples.javacodegeeks.com/desktop-java/swing/timer-swing/java-swing-timer-example/). — flaxel, Sep 26 '20 at 15:08

Run from 0 to 255

0 Answers0