Can I 'invert' a bool?

Question

I have some checks to see if a screen is active. The code looks like this:

if (GUI.Button(new Rect(Screen.width / 2 - 10, 50, 50, 30), \"Rules\")) //Creates          


        

Answer 1

This would be inlined, so readability increases, runtime costs stays the same:

public static bool Invert(this bool val) { return !val; }

To give:

ruleScreenActive.Invert();

Answer 2

I think it is better to write:

ruleScreenActive ^= true;

that way you avoid writing the variable name twice ... which can lead to errors

Answer 3

You can get rid of your if/else statements by negating the bool's value:

ruleScreenActive = !ruleScreenActive;

Answer 4

ruleScreenActive = !ruleScreenActive;