Working with input manager's mappings and listeners

Troubleshooting General Help
1

Hello,
Now I want to know the best way for working with mappings and listeners, that I sets up in my different app states.

I want to use different key triggers in each app state. But when I’m adding mappings and listeners in different app states I’m doing this for one input manager. As I understand, regardless of whether app state enabled or disabled mappings and listeners that I set up in this app state for inputManager will work, if I set up this mappings and listeners in it’s initialize method(mappings and listeners will work after I will initialize app state).

But I want to have different mappings and listeners in different app states.
For this now I adds mappings and adds listeners for each of this mappings in app state’s onEnable method and deletes all mappings and removes listeners for them in onDisable method.

Do I do it best way? The way I described you is the most common and most people doing it like me or not?

Also I would like to know, is it right, that when I adds listener - I do this for each mapping but when I removes listener I do this once? I mean now I have next structure of adding and removing mappings and listeners(it will help you also for answering to previous question):

...
    @Override
    protected void onEnable() {
        inputManager.addMapping("Left", new KeyTrigger(KeyInput.KEY_A));
        inputManager.addMapping("Right", new KeyTrigger(KeyInput.KEY_D));
        inputManager.addMapping("Up", new KeyTrigger(KeyInput.KEY_W));
        inputManager.addMapping("Down", new KeyTrigger(KeyInput.KEY_S));

        inputManager.addListener(actionListener, "Left");
        inputManager.addListener(actionListener, "Right");
        inputManager.addListener(actionListener, "Up");
        inputManager.addListener(actionListener, "Down");
    }

    @Override
    protected void onDisable() {
        inputManager.deleteMapping("Left");
        inputManager.deleteMapping("Right");
        inputManager.deleteMapping("Up");
        inputManager.deleteMapping("Down");

        inputManager.removeListener(actionListener);  // removing it once
    }
...

I don’t have to remove listener for each mapping or something like this? I think so, but got little cognitive dissonance when added listener for every mapping and removed it once :slight_smile:

1 Like
2

You can also use

com.simsilica.lemur.input.InputMapper;

as in here InputMapper and AppState Removal
or create something similar like that to ease up the process.

3

InputMapper is nice because you can disable/enable whole groups of mappings at once after they are already setup.

It’s also way easier to use (in my biased opinion) and supports key combos.

4

Thank you all. I’ll try InputMapper as you adviced

5

This might be helpful: