Difference between x =!x and x = false?

I used to think that the meant the same thing but now im not sure since i get different results. Could somebody explain the difference to me?

 

x = false sets x to false, always. Regardless of what it was before.
x = !x sets x to whatever it currently isn't. If it's true it goes to false, if it's false it goes to true.

 

You're assigning a value to x. In the first case x is assigned the opposite of what it already is. In the second case x is assigned the value false, irrespective of what it already is.

 

thanks! This makes it way clearer.

 

Hey again im just a little confused about this part of a script. So i was following this tut and was wondering why
this works:
if(touchingWall || !touchingEdge)
moveRight = !moveRight;


but this does not?
if (touchingWall)
moveRight = true;

if (!touchingEdge)
moveRight = false;

 

The first one is saying (assuming that you move left when moveRight is false, although that may not be the case):

If you're touching a wall OR you're not touching an edge, then toggle move right. If you're currently moving right, then you will move left if either you're touching a wall, or you're not touching an edge.

And if you were moving left, then you'll move right if you touch a wall or you're not touching an edge.

In the second case, you're saying: if you are touching a wall, then you will move right, regardless of whether you are moving right already or not. And if you're not touching an edge, you'll move left regardless of the direction you were moving before.

That's what the logic is saying. But I can't really speak about one working and the other not working, because I don't know exactly what you're trying to do and how your game is set up.

 

Assuming x is a bool, then

Code (CSharp):

1. x = !x;

Is the same as

Code (CSharp):

1. if (x == true){
2.     x = false;
3. } else if (x == false) {
4.     x = true;
5. }

Its just a lot less lines of code to write.

 

Thanks i kinda get it. This was the video i was following.
Happens at 14:30

 

Code (CSharp):

1. if (x == true){
2.     // ....

Is hate too strong a word ???

Code (CSharp):

1. if (x ){
2.     // .... :)

 

No, not at all. I was deliberately trying to be verbose to try and explain what was happening in the line x = !x.

I would be highly unlikely to use x == true in actual code.