'else' won't work in an if statement

Question

Here is my code:

 #pragma strict
 
 var walkSpeed = 0.2;
 var runSpeed = 1;
 var flySpeed = 3;
 
 function Start () {
 
 }
 
 function Update () {
 if    (Input.GetAxis("Vertical"));
         animation.CrossFade("Walk_") = walkSpeed;
     else
         animation.CrossFade("Rest");
 
 }

Whenever I try to use 'else' this comes up:

BCE0044: expecting }, found 'else'.

Is there a new code for if statements instead of else? I've heard you use OR or || for something in if statements but none seem to work for me...

Does anyone have an answer?

Thanks

Answer 1

Ok, so since this has been answered in the comments and I don't have the privileges to convert comments to answers, I will post my own.

The problem you had, was that you were using the wrong syntax for and if statement. Like in many other languages, javascript and therefore unityscript uses {} curlybrackets for code wrapping, including an if-else statement. Also present in many other languages is the usage of a ; semicolen for EOL (end of line), this is used for every line of code that is executed individually.

Therefore your code should look like this:

 function Update() {
     if (/*Your expression for the if statement*/) {
         //code here
     }
     else {
         //code here
     }
 }

You can also stack an if on top of an else:

 if (/*your expression here*/) {
     //Your code
 }
 else if (/*Your second expression here) {
     //Your code
 }
 else {
     //Your code
 }

To use an or expression, in javascript and unityscript, you use || So if I want my code to happen when either a or b are true:

 true || true //evaluates as true
 true || false //evaluates as true
 false || false //evaluates as false
 false || (true || false) //evaluates as true

And is done similarly with &&

 true && true //evaluates as true
 true && false //evaluates as false
 false && false //evaluates as false
 true && (true || false) //evaluates as true

You can also allways use not, which inverts the evaluation and is done using a !

 !true //evaluates as false
 !false //evaluates as true
 !(true && true) //evaluates as false
 !(true && false) //evaluates as true
 !(false && false) //evaluates as true

I suggest learning these basics before starting anything big :)

Hope this helps, Benproductions1

'else' won't work in an if statement

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