How to save Input Action bindings

Hello, I'm currently working on rebind-able controls for a game that I'm working on. I got a menu for rebinding the games input actions working. But every time I change a scene or restart the game all of the bindings disappear.

I was wondering, what is the recommended way of saving, and loading the input bindings.

Here is the code that I have for rebinding a control:

Code (CSharp):

1. public class InputActionRebinder : MonoBehaviour
2. {
3.     public InputAction inputAction;
4.     public TMP_Text text;
5.     public int bindingIndex;
6.  
7.     void Start()
8.     {
9.         SetActionText();
10.     }
11.  
12.     public void Rebind(Button button)
13.     {
14.         button.enabled = false;
15.         text.text = "Press any key";
16.  
17.         inputAction.PerformInteractiveRebinding()
18.         .WithTargetBinding(bindingIndex)
19.         .WithControlsExcluding("Mouse")
20.         .OnMatchWaitForAnother(0.1f)
21.         .OnComplete(operation => OnRebind(operation, button))
22.         .Start();
23.     }
24.  
25.     private void SetActionText()
26.     {
27.         text.text = InputControlPath.ToHumanReadableString(inputAction.bindings[bindingIndex].effectivePath, InputControlPath.HumanReadableStringOptions.OmitDevice);
28.     }
29.  
30.     private void OnRebind(InputActionRebindingExtensions.RebindingOperation operation, Button button)
31.     {
32.         SetActionText();
33.         operation.Dispose();
34.         button.enabled = true;
35.     }
36. }

 

Bump, Would love to see a response to this issue as I am having the same problem.

 

Yeah, gonna bump this as well. I have a "settings" file where different non-gamedata stuff is saved (Audio Settings, Accessibility settings etc.), there I would save the Mapping, but the question is:
what exactly needs to be serialized/saved and deserialized/loaded?

 

Basically, only InputBinding.overridePath needs to be stored and correlated by InputBinding.id. I've posted a sample code snippet here.

An API for getting a JSON string with overrides in a single call and for restoring all overrides in a single call will go in right after 1.0.

For scene transitions, I would recommend keeping the input setup intact and across rather than re-creating it on every scene load. For example, when using PlayerInput, by making it DontDestroyOnLoad and when using generated C# wrappers, by keeping the instance around.

 

Was added in 1.1 preview, from changelog:

Code (CSharp):

1. void SaveUserRebinds(PlayerInput player)
2. {
3.     var rebinds = player.actions.SaveBindingOverridesAsJson();
4.     PlayerPrefs.SetString("rebinds", rebinds);
5. }
6.  
7. void LoadUserRebinds(PlayerInput player)
8. {
9.     var rebinds = PlayerPrefs.GetString("rebinds");
10.     player.actions.LoadBindingOverridesFromJson(rebinds);
11. }
12.  

 

Code (CSharp):

1. actions.SaveBindingOverridesAsJson();

Any idea as to why this would give me an empty string?

 

I have the same problem, SaveBindingOverridesAsJson() returns an empty string. Input System 1.3.0

 

Need more details than that. Most common source would be that the set of actions being queried are not the ones actually holding the overrides. E.g. when PlayerInput duplicates the set of actions. Or when "Generate C# Class" is incorrectly mixed with PlayerInput.