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This: <iframe src="https://www.greenfoot.org/scenarios/23157?embed=true"></iframe> was given by the Embed link found to the lower right-hand corner of the scenario frame.

Correct me if I am mistaken, but I would presume that the actor to be added would be r, from the parameter of the method. I am not sure how the method will eliminate overlapping. It will probably make it such that less than half any object already in the world will be overlapped by that which is added; but it will not completel

I believe it has something to do with the usage of GreenfootSound objects.

No. Remove line 7 from your last selection class code post -- this line: <Code Omitted>Apparently, you changed the name. In your Arenaone class, you have that same line, which assigns playerone in the selection class to a field called player . However, player is not used anywhere else in the class. It is not added to the world, or anything.

Thanks

Introduce an indentifying field into the CatClass class: <Code Omitted>Then add a constructor to the class to accept a name: <Code Omitted>Now, you can give the cats their names: <Code Omitted>For the print line command, you can now use:

"typed text"? where is the code that allows user input?

oh thanks yes I was talking about the "Compile" button :)

Thx SIr :D

For anything to be uploaded onto the greenfoot site, all javax.swing classes should be avoided (same with java.awt classes). The "common way", as you put it, is more direct, works anywhere and has no chance of messing with the behavior of the greenfoot environment.

Are there any more lines in the stack trace? It's possible there's an error in the collision checker because it does use recursion but the stack overflow will probably involve more than three calls, so we'd need to see more of the trace. If you're willing to, zipping up the scenario and sending it to support@greenfoot.org would allow us to take a look.

I tried that but it crashes. Ty anyway.

In Car class act method or a method called from within the act method: (A_0) move car (B_0) check for collision with object(s) (B_1) if collision, move car back

Just fixed it as of now. The problem was that boomBoom was being called in the act method of boomArea.

The rotation of your Soldaat actor never changes;, so getRotation() will always return zero at line 32. Bullet on line 32 is a Class