Iterating through a custom keycode enum for input detection

Question

I am trying to read in key inputs from the player and store them. I had a working method of doing this, but every key press it needs to loop through every single keycode until the keycode that is pressed is detected. There are 300+ keycodes, meaning this slows down this loop quite a bit. I would like to use a custom enum that stores the relevant keycodes I am using and to loop through these keys in the same way I am doing now.

Here is my enum

 enum theKeys
 {
     W = 0,
     A,
     S,
     D,
     Space
 }

Here is my check for input along with the foreach loop through the enum

  if (Input.anyKeyDown || Input.anyKey)
   {
          foreach(KeyCode code in theKeys.GetValues(typeof( KeyCode )) )
          {
                   ...
          }
 }

When I loop through this custom enum it still loops through all 326 keycodes. If I interpret an enum as holding keycodes does it default to using the system.enum? Should I store the ascii values or the string literal of the keys then convert them after the foreach to a keycode? Thanks!

Answer 1

Best Answer

Answer by Hellium · Dec 17, 2018 at 05:52 PM

Why do you need to use an enum? I suggest you to use a simple array instead:

 public KeyCode[] KeyCodes;

 // ...

 for( int index = 0 ; index < KeyCodes.Length ; ++index )
 {
      if( Input.GetKey( KeyCodes[index] ) || Input.GetKeyDown( KeyCodes[index] ) )
      {
          Debug.Log( KeyCodes[index] + " has been pressed" ) ;
      }
 }

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CaseyLee · Aug 22, 2021 at 03:56 AM 0

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enum + switch = better IMO

Iterating through a custom keycode enum for input detection

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