Better way to read keyboard input?

I'm working on a maths game, targeting iOS, Android and WebGL. There's an on-screen number pad for the touch users, but I need to support keyboard input as well. Currently I'm using this approach:

Code (CSharp):

1. void CheckInput()
2. {
3.     int input;
4.    
5.     if (Input.GetKeyDown(KeyCode.Alpha0) || Input.GetKeyDown(KeyCode.Keypad0))
6.         input = 0;
7.     else if (Input.GetKeyDown(KeyCode.Alpha1) || Input.GetKeyDown(KeyCode.Keypad1))
8.         input = 1;
9.     else if (Input.GetKeyDown(KeyCode.Alpha2) || Input.GetKeyDown(KeyCode.Keypad2))
10.         input = 2;
11.     else if (Input.GetKeyDown(KeyCode.Alpha3) || Input.GetKeyDown(KeyCode.Keypad3))
12.         input = 3;
13.     else if (Input.GetKeyDown(KeyCode.Alpha4) || Input.GetKeyDown(KeyCode.Keypad4))
14.         input = 4;
15.     else if (Input.GetKeyDown(KeyCode.Alpha5) || Input.GetKeyDown(KeyCode.Keypad5))
16.         input = 5;
17.     else if (Input.GetKeyDown(KeyCode.Alpha6) || Input.GetKeyDown(KeyCode.Keypad6))
18.         input = 6;
19.     else if (Input.GetKeyDown(KeyCode.Alpha7) || Input.GetKeyDown(KeyCode.Keypad7))
20.         input = 7;
21.     else if (Input.GetKeyDown(KeyCode.Alpha8) || Input.GetKeyDown(KeyCode.Keypad8))
22.         input = 8;
23.     else if (Input.GetKeyDown(KeyCode.Alpha9) || Input.GetKeyDown(KeyCode.Keypad9))
24.         input = 9;
25.     else if (Input.GetKeyDown(KeyCode.Return) || Input.GetKeyDown(KeyCode.KeypadEnter))
26.         input = 10;
27.     else if (Input.GetKeyDown(KeyCode.Backspace))
28.         input = -1;
29.     else
30.         return;
31.  
32.     _inputs.Enqueue(input);
33. }

That's called from the Update method, then I'm reading off

_inputs

(which is a

Queue<int>

) in the FixedUpdate method.

So I'm calling

Input.GetKeyDown

23 times every frame, which feels wasteful. Is there a better way?

(I'm a Unity noob but very experienced C# programmer.)

 

If you use Unity's new input system you can do an event-based approach with the keyboard like I'm doing here:

https://github.com/jschiff/unity-ex...e31/Runtime/TextAnimator/Content/Input.cs#L55

Then you could parse the char to a number or whatever you need to do.

 

Awesome, that's worked great. Thanks for the help.