Discussions

to just check you need to use the method getOneObjectAtOffset. I think the use of a parameter would be good in this case:

I am not too sure that you want it to be a subclass of mainmenu or just a subclass of Actor. Anyway, to add an actor into the world, use the World class method 'addObject'.

If your walls are at least 4 pixels wide then you should be able to detect when you came upon one. After the 'checkKeys' call in the act method, add a 'checkWalls' method. Create the new 'checkWalls' method checking for intersecting walls (one check for each type of wall). If either wall is present, move the character back to the location it started at. You will have to add fields to hold the initial location and set them at the beginning of the act method.

getWidth used to be an Actor method in earlier versions of Greenfoot, but in recent versions it is not. You have to call getImage().getWidth() (or equivalent) instead.

Since each world will know which world to proceed to next (after the between screen is shown), you would want to create the new game world before calling the between screen world; pass it to the between screen world so it can go to that world when the between screen is done showing. If you had, let us say, 'Level1' and 'Level2' as game worlds and 'Intermission' as the between world, then:

It is done basically the same way as when you create the message manually. <Code Omitted>This creates the object and holds it in a field called 'msg'; now you just need to add 'msg' into the world where you want it.

No problem.

cool

another way you could do it is set some kind of reload timer so that if you hold the hey down it fires once every so often.

You need to post your code. Either post the relevant parts here, or upload your scenario with source code and post the link to it here.

@laziaf you should probably start a new topic you know. It would be alot more effective...

You seem to be showing the wrong code every time you post a question. When asking about trying to shoot one missle at a time, you should have shown the class with the shoot method in it. Here, you ask about the missle intersecting a ship and should have shown the Missle class. Anyway, I saw your code for the Missle class from you other discussion post and cleaned it up a bit to the following:

Showing the whole error message may help. Although, in this case, it may not; as it probably deals with very large or a multitude of images. When the error occurs may be a clue as to where to look. If you cannot figure it out, you may have to post your code one class as a time, starting with your initial world class.

that works. Thanks Dan