Discussions

Um, I'm not too sure about what you're trying to do, but wouldn't it be better to create an abstract class "Piece" with declared GreenfootImage blackImage and whiteImage, and then in the constructor have a blackImage and a whiteImage parameter, this way with superclass constructor chaining you can ensure every Piece will have pictures? Then, whenever the piece is moved, check the color of the square it is moving it to (again, with a superclass method somewhat like this...

Thanks!

Ok - the proper name for that is "0-based indexing" (as Java arrays use), though in this case the x/y values aren't really meant to be so much indexes as they are distances from the top left cell. Regardless we could say that the co-ordinates are "0-based". Yes, I meant bounded, sorry.

Oh my god. Of course nothing happens because i didnt set stepsizex and stepsizey stepsizex = xway/steps; stepsizey = yway/steps;

Np, there are also some other resources dotted about greenfoot.org for both beginners and advanced users.

Yes, a very big difference. By saying <Code Omitted> you are saying "Get the world! do nothing with it. And then try to removeObjects" But only the world is able to remove objects, so you need to do this: <Code Omitted> which says "Get the world, and then *use* the world to remove this object" which is what you want

Oh... Thanks This exactlly what I need

@kwill1429 Yes, I could... But then i would need 500 or more Wombat-Pictures... And I think, thats too mutch... @mik Thank you very much! :D

Nevermind! I found my problem, and have since fixed it.

Oh thanks! i did not know that greenfoot draws everything again every act! that's helpfull! thanks again, Mattan.

thanks a lot it finally worked :) (tried it before, but, somehow it always returned null, so i droped the idea; was standing in the "method described here". Still wondering why it did that^^ )

Both replies here have pointed out that you cannot write to a file (or connect to another website) when running in the Gallery. That is true. The reason is security: If any applet running on a web page was able to write to your file system, then just opening a web page could raise hell on your computer. The web page might contain an applet that erases all your files and replaces them with cats on skateboards. To prevent this, applets (and Greenfoot scenarios in the Gallery are applets) are run in a "sandbox" -- i.e. they are forbidden to do anything that could be dangerous. And that incl

Make sure you have the newest form of Greenfoot. If your version is under 2.0, then GreenfootSound is unavailavble.