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Thank you

(In any case, the problem is that you're trying to open a jar or gfar file, but the file contents have already been extracted. Open the project itself - i.e. the extracted folder - not the jar/gfar file).

:D thx, danpost. Il keep an eye out.

thank you

'getOneIntersectingObject' returns an Object, not a List (or a boolean). You can use 'getIntersectingObjects' which returns a List object (that 'isEmpty' will work on) or you can use change the line to: <Code Omitted>

Basically, when after moving, if it is touching the barrier, move back:

-Xdiags:verbose is a compiler option. Greenfoot doesn't support setting it, so for now you should just ignore it. I believe you only get this when you also get error messages, so you should concentrate on fixing the errors and then this warning will also go away.

I have a new BGMusic Actor support class for background music that I want to get out here. I just now got an idea of how I can demo it. I will work on it in the near future.

Lines 1 and 2 above are reversed from what they should be.

If you want to do something over timer, you need an 'act' method. If you play at a 'normal' speed, this 300 will be about 5-6 seconds or something. If you want exactly 6 seconds, you can also use the milliseconds from the system which are unaffected by the Greenfoot Speed. But then, the game will be different if you change the speed. So I would suggest to just adjust the 300 to the value you want and try this code:

Ok I got it to work finally. Thanks for all the help!

Help pleas

I will. Thanks davmac. I know that its more of an internal error rather than wrong coding on that specific practice.

Thank you for your suggestions. I understand it now. And thanks for a simpler method, I didn't realize that it took that much room until you pointed it out.

Don't do this: <Code Omitted> Just do this: <Code Omitted> The first example just creates an extra object needlessly.