@Nosson1459, I copied the fore-mentioned jar file into my scenarios folder; opened the greenfoot application and proceeded to load the file.

@Nosson1459, I took a chance and opened the jar file in greenfoot (even though the '.CLASS' files, or source codes, were missing) and re-uploaded it.

@Nosson1459, this: www.greenfoot.org/applet_attachments/0000/9544/greenfoot1822994819051924242.jar is the path name of the ChessWorld scenario jar file here on the site. He was saying that you could use a decompiler (of which no particular one was mentioned) to recreate the source of the project.

@Nosson1459, I am not get that error message. I get words in the top left corner of window saying "Error, Click for details". Last time however, I got 'NullPointerException' even though I did not change the code. BTW, this scenario does not use the UserInfo class.

@ET78759, I no longer have the source as it was on a laptop that went kaput. Also, I am having trouble having this one run on the site right now. @ALL, can anyone get this to run at all?

@Nosson1459, apparently the counter is incremented when a bus leaves the world at zero x-coordinate value. You could conceivably be passed two or three busses that have not been scored yet.

@Nosson1459, I asked before, and I will ask once more, to please start a discussion thread on this issue (where codes can be show easier and the scenario comments are left for general comments on the specific scenario).

@Nosson1459, I guess you could create a second Scroller object for the same world and not include a background image so that you can scroll the actors only with it and have the first one scroll both.