How do I get my 'space' background movine forward.?This will make my rocket look like it is moving forwards.
RahulUK wrote ...
2013/7/2
Moving Background
You first need to have a counter in your world that counts down every act (how fast it counts is up to you).
This value can be used as the starting point of your background image.
Then you need to redraw the background image every act like this:
That will make it look like your background moves.
//in your world class
private int imageCount = 0;
private GreenfootImage bgImage = new GreenfootImage("imageName.png");
public void act() {
imageCount -= 5; //(or any other value; small -> slow moving, big -> fast movement)
drawBackgroundImage();
}
public void drawBackgroundImage() {
if (imageCount > bgImage.getWidth()) {
imageCount += bgImage.getWidth();
}
int temp = imageCount;
getBackground().drawImage(bgImage, temp, 0);
getBackground().drawImage(bgImage, temp + bgImage.getWidth(), 0);
}
@Gevater_Tod4711, how will the imageCount ever be greater than the width of the image if you are never increasing its value? I think line 12 should be:
if (imageCount < -bgImage.getWidth()) {
Oh yes that would make more sence.
Thanks danpost.
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