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Thank you that fixed my error

Ok many thanks I made it like that to get it working: <Code Omitted>Working just fine now, thanks!

Looks like you are missing a class closing squiggly bracket at the end. If you indent properly (use Control-Shift-I, on Windows), you might spot it easier.

Change your "super" line to: <Code Omitted>

You are right with the classes, I´m not that good at java just jet. Also, my problem was solved simply by adding these brackets around the "getOneIntersectingObject()" and adding the "(Surface)". I knew the problem with the nullPointExeption though. Thanks a lot, RcCookie

Ok, so it seemed the problem was my static variable for my block, I moved that over to my level 2 world and it seemed to have worked. Thanks for pointing me in the right direction!

sinh(z), where z = a+i*b, is sinh(a)*cos(b)+i*cosh(a)*sin(b). So, the new real coefficient of z before adding the constant is sinh(a)*cos(b) and the new coefficient of the imaginary part of z before adding the constant is cosh(a)*sin(b).

Please provide your entire Cat class codes.

Please show your entire current Space class codes.

Maybe you did not know that you can add an act method into your World subclass codes.

As @danpost said, I dont know your Code, but the general code for adding an image to your background is this: <Code Omitted>Ohr it should be, I am writing this in my mobilephone, and cant test it... Im not surfe if there hast to be something like <Code Omitted>Or something similar, but you will just have to try out...

Ah ok, trank you! ;-)

You cannot add an actor into a world that it is already in. If you want to add new actors, you need to create new actors. Your code above can be written as:

You will need a timer and two String fields -- one for "input" and one for "output". A base image would also be helpful. See what you can put together and come back with your attempted codes if and when you get stuck.

If the counter is to be strictly internal, and int field is all you need; if visible, then you need an actor. Either way, no one can fix unseen code -- like, what have you tried (show attempted code).