Java 2D game graphics

Question

Next semester we have a module in making Java applications in a team. The requirement of the module is to make a game. Over the Christmas holidays I\'ve been doing a little

Answer 1

The flickering is due to you writing direct to the screen. Use a buffer to draw on and then write the entire screen in 1 go. This is Double Buffering which you may have heard of before. Here is the simplest form possible.

public void paint(Graphics g)
{

    Image image = createImage(size + 1, size + 1);
    Graphics offG = image.getGraphics();
    offG.setColor(Color.BLACK);
    offG.fillRect(0, 0, getWidth(), getHeight());
    // etc

See the use of the off screen graphics offG. It is expensive to create the off screen image so I would suggest creating it only on first call.

There's other areas you can improve this further eg creating a compatible image, using clipping etc. For more fine tuned control of animation you should look into active rendering.

There's a decent page I have bookmarked discussing game tutorials here.

Good luck!