cool, thanks

I think you will be alright if you use my suggestion above. Just make sure you change 'World' to your world name in step # 2 and eliminate all instances of 'World.' in step # 3. And if you do not have a 'private String btnText;' in your button object classes, add them and make them equals to the button text. Then in step # 2, you should have in brackets '{ World.lastButton = btnText; }'. Again 'World' should be 'TextWorld', if that is the name of your world; if not, it should be the name that you gave your world. How do I access the '.png' image that you mentioned?

No problem!

Go to Greenfoot/lib/ where you should find a file called greenfoot.defs. Open it in a text editor and scroll to the bottom where you should see this line: bluej.vm.args=-Xincgc -Dapple.awt.graphics.UseQuartz=true Add the options to the end here and it should help (like so): bluej.vm.args=-Xincgc -Dapple.awt.graphics.UseQuartz=true -Xms1024M -Xmx1024M I set mine to 1024M because I've got a lot of memory on my computer, but you should set it to something appropriate for your own machine. It doesn't remove the problem, but it makes it come up less frequently.

Ah ! Vielen Dank !!! Ich probiere es gleich mal aus! MrIncredible

Can you post the solution?

and not delay() method.

Lol... by wrting out the code of the different classes in my previous post, it hit me... I had to add the following in Space <Code Omitted> and the following code in Shot <Code Omitted> Off to try

Thank you. It works.

Hi guys, Code works like a charm. danmac: the hang was indeed due to the not specified move() value. Changing it to move(1.0) solved the "hanging". danpost: I adjusted the setRotation to setRotation(x) and thats work fine. I new actually keep the setRotation(0) in the code because I like the actor not turning better for now. Only funny thing is that the actor not always moves in a straight line. It somethings goes to the specified location in a curve which is funny to see. Next step is awareness and world population refinement. Have the resources appear next to eachother and mak

Note though that as GameCode said - if you use Greenfoot.stop() you can't resume by a key press since there won't be any code running to check that key press! If you want to go down that route (i,e, resume from a key press), then the easiest way would probably to have a "paused" boolean field in the relevant actors, and invert it whenever a particular key is pressed. You'd then only execute the main body of the act method if paused was set to false.