Discussions

I think your comparisons of the totals is not correct for the order you want (change the 2nd '<' to '>'). FYI, you either switch the order of elements compared or switch the comparison operator, but not both, as that just results in no change in the comparison at all.

Thanks for the help and the sound started to play after I restarted my computer. thanks again

Insert the following line in the act method: <Code Omitted>

You never delete (or remove) a Class -- you remove a single Actor object or a List of Actor objects. The 'removeObject' method removes a single Actor object. We cannot, however, correct your code without seeing what you have.

What is meant is that: <Code Omitted>the actor is being removed from the world, probably with a line like this: <Code Omitted>The removing line could be in a method called between those two points.

Either you have an instance of the Object that you want the smoke to follow then you can get the x and y of the actor for the smoke, or you check for an intersecting object and then set your x and y to those of the intersecting object (which basically is the same as the first way since your getting an instance of it with the method).

Ah ok. I noticed that, just was curious about the "list" thing. Thanks again

I also have a button sub-class, so I am not sure if I should take that into consideration when working with the button. Here is the main ToggleButton class:

Please see my Value Display Tutorial scenario.

Sorry, i just wanted to ask something else. Do you know i am able to make my bullets disappear when it hits the rockets and also make an quick explosion??<Code Omitted>This is the code in my plane

The 'getNeighbours' method is more for gridded world (worlds that have a cell size greater than one where actors usually fit inside one cell). The 'getObjectsAtOffset' method might work a little better (in fact, you can use it four times to check on all four sides of the actor). If I read the instructions you gave correctly (presuming that the wording is correct), then you need to use at least two "List" methods (like 'get(int)', 'isEmpty()' and 'size()', to name a few methods that could be used).

You can scale the image to size before the world is created; however, you would need to use static content and it will happen during compilation of the project (before any World object is created): <Code Omitted>

Thanks

I said I don't know much about greenfoot, and I just said danpost because he has helped me a lot, just trying to share what I know, sorry for what I got wrong.