Check if any key is pressed

As the title suggests, how can I check if any key was pressed on this new system? Also how can I know what key it was?

Thank you

 

You can use:

Code (CSharp):

1. Keyboard.current.anyKey.wasPressedThisFrame

It detects if any key was pressed, but I think it doesn't expose the specific key name? I'm just learning this new Input System myself.

 

That might work. Do you think there is a way of getting input from any device? Per example:

Code (CSharp):

1. AnyDevice.current.anyKey.wasPressedThisFrame

Do you think this might be possible?

 

I don't dislike that second alternative. It's ugly but it looks like it will work.
The thing is I don't understand what most of those things do, stuff like "IsA(), controls.synthetic, controls.noisy...". Are those documented on the new input's API?

 

Thanks for the links!

 

I'm having an issue with Keyboard.current.anyKey.wasPressedThisFrame. If I hold down one key, then press a second key, it remains false. This is a regression from the old system's Input.anyKey.

Is this intended behavior? If so, is there a workaround? Currently I'm iterating through every Key to individually check if it's down this frame, I feel like there must be a better way...

CC @Rene-Damm -- hope it's okay to ping you

 

I'm experiencing the same issue, "anyKey.wasPressedThisFrame" doesn't trigger when holding a second key so shift/ctrl shortcuts I've set up don't function. We're you able to find a solution/workaround?

 

@NongBenz I wasn't able to find a non-S***ty way of doing it, the workaround I'm using is what I already described: I iterate through every Key and check individually whether one is down.

 

Is there a simpler way to do this now?

 

*bump
any updates? @ unity

 

Is this still tedious, or has an easier way been implemented? I have to admit, I can't believe the new input system shipped without an easy way to accomplish this.

 

Any luck with this?

 

"Any key" is supposed to be easy, but it seems it's confusing for both the programmers and the customers
Any update on this though?

 

Has anyone had any luck finding anything out, as far as a simpler solution?

 

I used #4 and it worked for me

 

apparently, there's one for the keyboard. haven't tested it yet though.
reference: https://docs.unity3d.com/Packages/com.unity.inputsystem@0.9/manual/Migration.html

Code (CSharp):

1. Keyboard.current.anyKey.wasUpdatedThisFrame

would anyone like to try the above one out?

 

Dont know how I missed the documentation but this did work.

I ended up using the following and worked great.

Code (CSharp):

1. Keyboard.current.anyKey.isPressed

 

Well, here's the code then (extracted from here):

Code (CSharp):

1. public KeyCode getCurrentKeyDown()
2.     {
3.         KeyCode finalKeyCode=KeyCode.None;
4.         foreach (KeyCode kcode in Enum.GetValues(typeof(KeyCode))){if (Input.GetKey(kcode)){ finalKeyCode = kcode; }}
5.         if (finalKeyCode == KeyCode.None)
6.         {
7.             //Couldn't find key
8.         }
9.         return finalKeyCode;
10.     }

 

Bless up, thank you very much Rene.

 

i se some of you guys have the same problem as me i had solved it for keyboard using the key name like this

Code (CSharp):

1. if (Keyboard.current.FindKeyOnCurrentKeyboardLayout(Keyboard.current.allControls[KeyIndex].displayName).wasPressedThisFrame)

it returns true if the key index is pressed but it dowsnt work for mouse and i havent tried gamepad yet

edit: Gamepad also doesnt support i am gona do a classic gamer move and just save last state of the buttons with the press tag so it catches diferences

 

https://forum.unity.com/threads/input-system-1-3-0-released-more-fixes.1222632/#post-7862056

Make sure you read the following discussion too. Don't treat everything as "button", users aren't so no need.

 

If anyone else couldn't use this code because .CallOnce wasn't available, make sure to use:

Code (CSharp):

1. using UnityEngine.InputSystem.Utilities;

 

Thank you, that totally helped me. This is the second time I've been completely confused today by this crazy API using extension methods everywhere. The InputSystem is a cool thing, but the API is probably the most over engineered and over complicated set of code in the whole of Unity (!). It's sooooo hard to figure it out organically...

Ben

 

I wholeheartedly agree. I literally wrote my own custom API on top of the built-in one just because I can't F***ing stand the built-in API.

 

I tried

Code (CSharp):

1. InputSystem.onAnyButtonPress.CallOnce(ctrl => Debug.Log($"{ctrl} pressed"));

and it detects false presses every frame with nothing touching the controller

"Button:/adapter/hat/right pressed"
and
"Button:/adapter2/hat/right pressed"

I don't know what either of those buttons even are, but the Input Action Asset doesn't detect them when using the "Listen" button for mapping the joystick adapter. The "Listen" button works in the asset, but I need the accurate runtime detection of any button press.

Is there anything better?

 

Even in 1.5 there is nothing that checks for *any* input. I wanted an idle detector which would bail if gyro or joystick or touchpad was significantly moved, in addition to buttons, but had to write my own. And of course, it should be a mark/sweep in the bowels of the input system, not a caller polling thing done way up in the game loop.

 

And by your own you mean you just checked a list of every possible input every frame to see if it's pressed?

 

See post #4 in this thread, but duplicate lines 12~19 for AxisControl, Vector2Control, ... and so on.

 

Sadly that also gives false positives with my adapter for all 4 controller slots even without a controller plugged in. It receives 4 STAT events every frame for each slot when that method is added to the onEvent listener. Don't know what a STAT event is, but it doesn't seem filterable. It's the eventPtr.type which is a FourCC struct, but I don't know what a FourCC is, but its ToString() gives "STAT".

 

This does not work if you press more than one key at once. Holding right arrow then pressing left arrow for example will output "right arrow pressed" on every press and release.
There also doesn't seem to be a way to get key released events with this method.

 

Throws an error
"Operator '+=' cannot be applied to operands of type 'InputEventListener' and 'lambda expression' "

 

You will have to subscribe an object that is implementing the

IObserver<InputEventPtr>

interface. Using that you can get the last used device by using the API.

It may not be the most performant solution (and you may have to filter out some noise) but it works for all inputs (keys, mouse move, buttons, thumbsticks, ...).

Code (CSharp):

1.  
2. using System;
3. using UnityEngine;
4.  
5. #if ENABLE_INPUT_SYSTEM
6. using UnityEngine.InputSystem;
7. using UnityEngine.InputSystem.LowLevel;
8. #endif
9.  
10. namespace YourNameSpace
11. {
12.     public partial class InputDetector : IObserver<InputEventPtr>
13.    {
14.  
15.         public void Init()
16.         {
17.             InputSystem.onEvent.Subscribe(this);
18.         }
19.  
20.         public void OnCompleted() {}
21.         public void OnError(Exception error) {}
22.  
23.         public void OnNext(InputEventPtr value)
24.         {
25.             for (int i = 0; i < InputSystem.devices.Count; i++)
26.             {
27.                 if (InputSystem.devices[i].deviceId == value.deviceId)
28.                 {
29.                     var device = InputSystem.devices[i];
30.  
31.                     // Thanks to:
32.                     // https://forum.unity.com/threads/detect-most-recent-input-device-type.753206/#post-9167348
33.  
34.                     // Some devices like to spam events like crazy.
35.                     // Example: PS4 controller on PC keeps triggering events without meaningful change.
36.                     var eventType = value.type;
37.                     if (eventType == StateEvent.Type)
38.                     {
39.                         // Go through the changed controls in the event and look for ones actuated
40.                         // above a magnitude of a little above zero.
41.                         if (!value.EnumerateChangedControls(device: device, magnitudeThreshold: 0.0001f).Any())
42.                             continue;
43.                     }
44.  
45.                     if (device == Mouse.current)
46.                     {
47.                         Debug.Log("Mouse");
48.                     }
49.                     else if (device == Keyboard.current)
50.                     {
51.                         Debug.Log("Keyboard");
52.                     }
53.                     else if (device == Gamepad.current)
54.                     {
55.                         Debug.Log("GamePad");
56.                     }
57.                     else
58.                     {
59.                         Debug.Log("Other device");
60.                     }
61.                     break;
62.                 }
63.  
64.             }
65.            
66.         }
67.  
68.     }
69. }