Discussions

@ Busch Maybe you can store more ints, when u use Symbols instead of numbers if you take 100 different symbols, you can write the numers 0 to 99 in just one space! you just need a method that converts a number in this code and backwards.

That is not quite true. As long as the actor is in the world, you can use the 'getWorld()' method to access the 'removeObject' and 'addObject' methods. <Code Omitted>

Okay I have added some squiggly brackets around my code and I have managed to get it working again! Thanks for your help everyone, much appreciated.

I should mention that while the work to write something like this can be finicky and tough, once you have it, writing new levels for your game becomes so much easier, and for really complex levels, your world file can shrink from an enormous monstrosity to something far more manageable! :) Two high school students of mine (with some help on file IO from me) used this basic system to write a Galaga-type space shooter, and their level Strings even included timing data. Cool stuff.

That worked great, thanks :D

Why not - what goes wrong? Post your code here.

[Disallowed URL] [Disallowed URL] the first is the bosshealth classes value and the second is the bosses value but there different

I think I know what you did wrong. In the greenfoot book, there are APIs already defined for you. In a new scenario, those APIs aren't there. You just have to copy those APIs into your scenario. Next time, you have to think about it yourself. You are doing this for school, so you have to understand it, or you'll get bad grades. I'm not going to create a scenario for you anymore, I realized you really have to do it yourself. Success!

Just looked at it, Looked really smooth and all :) Opened the code, 0.0, Way too difficult for me D:

anyway i will have to install another day (need perms)

You're welcome

press ctrl+n for a new img and go to advanced options go to fill with and select trancparancy then paste img and then use eraser tool to delete bits you want to be inviable i hop i helped please ask if you have more questions [Disallowed URL]

Another way is by saving just the other location (the one it is not at). I will call your object a 'Teleporter': Use <Code Omitted>to add the object to the world (nextX, nextY, currentX, and currentY need to be set to the coordinates of the two points the object teleports between). The 'Teleporter' class needs a constructor to receive the two coordinates sent to it; so, this code would go in the 'Teleporter' class:

When 'getWorld' is called, it tries to return the world that the object in question (the counter) is in. If is has not been 'addObject'ed to the world or it has been 'removeObject'ed from the world, then 'getWorld' will return 'null' and a NullPointerException occurs.