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Thank you very much danpost, this is what I will do!

Alright that worked, thank you!

Show enter screen codes.

In this case, you can use: <Code Omitted>

That is because dialog1 was never in the world. Again, you have "new Dialog1()" in your code more than once.

Thank you, I solved it by creating transparent pixels there and when intersecting, it moves back off it.

It is probably having each tube, both top and bottom, adding to the score. It would be okay to just allow it, internally. You can display half that value in the score display actor.

You have to place the sound file in the "sounds" folder of your project. If the file is called "a.wav", then you use "a.wav" and not the full path or anything complicated.

Thanks! it worked, you saved my grade.

Have the world respawn the object (only remove it when hitting a border).

I wrote:

Save the starting coordinates and move from there as you move farther each iteration of the loop. Use Greenfoot.delay(1); within the loop to show the animation: <Code Omitted>I think I did that right so you can adjust the speed easily. This would replace lines 16 thru 18.

Thanks, it worked!

There are two main ways to get the score to the win world. One is to add a parameter to the win world constructors and pass either the Counter object or the int score to it. The other is to split the line that creates the win world and sets the world active up into two lines so that you gain a reference to the new win world and can work with it directly:

never mind. i fixed the issue.i am curently moddifying the variables only in the screen 1 class and not in each indivisual classes.