Discussions

I was thinking something like this:

they are saved to the default directory so i think ist greeenfoot's project folder. Do u think ist because theese files arent associated with java by greenfoot? Because the eclipse-packed jar i had for other projects were able to run anyway..

YAY! TEST

Ok. This would work the same: <Code Omitted>

That worked. I was putting "{" instead of the "(" so it wouldn't compile. Thank you very much!!!

I think I fixed it just by swapping out the order of 2 methods. So now it checks and sets the image before checking collision.

Thanks Danpost!!

I need a harder task; and you need to ask a harder question. However, I should probably have just written

I believe that if you made that world class a private inner class of another world, actors and other worlds would not be able to create one directly. Only the class it is in will be able to directly create one. As far as reflection and other metalinguistic features, security managers and framework structure -- I must truthfully state that I know little about them in regards to how they can be manipulated (or hacked).

Look at the end of your line 3 above. You end it with a forward slash. That cannot be right. All command lines should end with a semi-colon -- ";". BTW, this has nothing to do with greenfoot; this is Java syntax. This is covered in the Java tutorials on this page.

I do not understand why there is a need for both the 'onGround' boolean AND the 'jumping' boolean. Does not the following always hold true? onGround == !jumping or this? jumping == !onGround Having both fields just complicates matters. Anyways, I did not see anywhere in the code where 'jumping' is set back to 'false'; so, the condition on line 17 will not ever again be 'true'. Thus, only jumps once.

Any one of my latest scenario has a button with mouse hovering image changing. You do not even have to download them to see the code. You will find the button Actor code within the main worlds of each of them except the newest one, which is in the Menu world (the UserInfo Jumbo Maze Demo scenario).

Thanks!

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