Error CS0023: The '!' operator cannot be applied to operand of type 'void'

Questions & Answers
1

Hello,

Here is part of my script:

void Update () 
	{
		if (!GoRight () || !GoLeft()) 
		{
			CharacterMover.Instance.LeftRight = 0;
		}
	}

	public void GoRight ()
	{
		CharacterMover.Instance.LeftRight = 1;
	}
	public void GoLeft ()
	{
		CharacterMover.Instance.LeftRight = -1;
	}

My error is at line 3 inside the IF statement.
The two methods “GoLeft” and “GoRight” are connected to a button via OnPointerDown on the Eventsystem. All I want is whenever none of those two functions are being called, the LeftRight float from another script goes to 0.
Any ideas on how to fix this error?
Thank you

2

void means they do not return something if you were to do ! it would need to return true like:

 void Update () 
         {
             if (!GoRight () || !GoLeft()) 
             {
                 CharacterMover.Instance.LeftRight = 0;
             }
         }
     
         public bool GoRight ()
         {
             CharacterMover.Instance.LeftRight = 1;
             return true;
         }
         public bool GoLeft ()
         {
             CharacterMover.Instance.LeftRight = -1;
             return true;
         }

These will both always return true so you might want an if statement deciding weather or not they should return true or false