Slick Forums

How should I go about doing this?
I tried making a global variable in my main class, but it seems to resort back to it's initial value when switching states.
How do I go about doing this?

In the process of making your game you'll probably end up with some basic core classes like for instance a GameLogic.class or a World.class containing all your entities, EntityManager, NetworkSubsystem, etc..
See what other variables you may need in the future and if they have something in common. Then you can put them all in one class and either a) extend your gamestate, so that you can pass a reference to this class in the constructor, b) set the reference via getter/setter upon creation of the gamestate or c) make the class a singleton.

I usually have a singleton instance of World.class where all units, equipment, positions, etc. resist. This class can be accessed from everywhere via it's static methods.
Same goes for a ResourceManager which contains all needed animations, graphics, etc..

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team red

So why doesn't it work when I set a global variable in my main state that has the list of other states, etc.

Mmh, this should actually work. What exactly do you mean by global variable?

Usually you should have your game object defined static in your main class anyway. So why don't just use this?

and then in some state:

Both methods should work to get the desired effect but look rather ugly

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team red

I'm trying to make a game where if you walk up off screen, you appear at the coordinate 0 on the next screen, with the same x coord

To do this I set a variable like so:


and then setting that variable in one state in the update method
and then saying the character starts at or is rendered at (Xcord,0);
however, when the game transitions between states, it sets the Xcord back the value it is set innitialls appose to what I set in the playing state before it.

I'm just wondering how I go about stopping this.