Receive any Keyboard input and use with Switch statement on Unity

Question

I don\'t want to use if statement. For simplicity and performance I want to use switch case and execute that method. I want all the keyboard Input to get detected. But is there

Answer 1

I've not used Unity, however, I understand your problem and I am a C# developer.

From a quick search I have found someone on Unity forums with a similar problem to you. Here is the thread https://answers.unity.com/questions/1520939/check-if-there-is-a-keyboard-input.html.

if (Input.anyKeyDown)
 {
     Event e = Event.current;
     if (e.isKey)
     {
         Debug.Log("Current Key is : " + e.keyCode.ToString());
     }
 }

The code above (from the Unity forum link) enables you to detect input.anyKeyDown (keyboard and mouse). Then you can filter the mouse detections by checking if the input was only a keyboard input with e.isKey

Here is documentation for KeyCode. This also includes all the properties available to it (many keyboard related properties that you can potential check against).

For example (not tested):

Event e = Event.current;
if (e.isKey)
{
    Debug.Log("Current Key is : " + e.keyCode.ToString());

    if(e.keyCode == KeyCode.A) //checks if the keycode returned equals the 'A' key
    {
         // Do something
    }
}

EDIT: As mentioned by the other answer you can try Input.inputString. According to the documentation insputString contains "Only ASCII characters". So for example you could do something like this in the 'Update' method if letters was what you were only looking to check.

void Update()
{
    //get the input
    var input = Input.inputString;

    //ignore null input to avoid unnecessary computation
    if (!string.IsNullOrEmpty(input))
    {
        switch(input)
        {
            case 'a': break;
            case 'b': break;
        }
    }
}

Hope this can help.