How can I use a delegate/event with enums and switch statement to switch powerup?

Question

So t$$anonymous$$s sits on my powerup and I want to transform it depending on what button is clicked. How can I pass info what button was clicked so the case is switched?

 public enum PowerUps
     {
         ARROW,
         REVERSE,
         THIRD
     }
     public PowerUps ActivePowerUp = PowerUps.ARROW;
 
 
     void Start()
     {
         GameManager.onClick += TransformPowerUp;
 }
 
 
     public void TransformPowerUp()
     {
 
         switch (ActivePowerUp)
         {
             case PowerUps.ARROW:
                 Debug.Log("ARROW");
                 break;
             case PowerUps.REVERSE:
                 Debug.Log("REVERSE");
                 break;
             case PowerUps.THIRD:
                 Debug.Log("THIRD");
                 break;
             default:
                 Debug.Log("NOTHING");
                 break;
         }

For the buttons I have the following in my gamemanager script

  public delegate void ActionClick();
     public static event ActionClick onClick;
 
 
     public void ButtonClick()
     {
         //Checks if there are any listeners
         if (onClick != null)
             onClick();
 
     }

Answer 1

Answer by Larry-Dietz · Dec 09, 2019 at 05:55 PM

In your GameManager script, where you are defining the onClick event, you should be able to make that event use a parameter, to pass the correct powerup to the script. Somet$$anonymous$$ng like t$$anonymous$$s...

  public delegate void onCliick(PowerUps SelectedPowerUp);
     public static event onClickHandler onClick;
     public static void onClick(PowerUps SelectedPowerUp)
     {
         if (onClick != null)
             onClick(SelectedPowerUp);
     }

I just wrote t$$anonymous$$s directly in the code window, so no guarantees against typos :)

Then in your button event, just pass the correct PowerUp to the OnClick event.

You would also need to change the declaration of TransformPowerUp to accept the parameter, like t$$anonymous$$s...

  public void TransformPowerUp(PowerUp ActivePowerUp)

Hope t$$anonymous$$s helps, -Larry

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Trabahoo · Dec 09, 2019 at 06:07 PM 0

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Larry-Dietz Trabahoo · Dec 09, 2019 at 06:40 PM 0

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How can I use a delegate/event with enums and switch statement to switch powerup?

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