Re Writing script for JS to C#

Unity Engine
1

Hello!
Im working on a 2D platformer game and i found a script that made my character face the way it goes.
But it was in JS, and my knownledge in C# is limited. But i really want my script to be the same language so i don’t get problems.
So is there a way to rewrite this short script into C#?

#pragma strict

var X : float;

function Start () {
X = transform.localScale.x;
}

function Update () {
if(Input.GetKey(KeyCode.A)) {
transform.localScale.x = -X;
}
else if (Input.GetKey(KeyCode.D)) {
transform.localScale.x = X;
}
}

Thanks!

2 
using UnityEngine;

public class <NameOfTheScript> : MonoBehaviour
{

    public float X;

    void Start()
    {
	    X = transform.localScale.x;
    }

    void Update()
    {
	    if(Input.GetKey(KeyCode.A)) {
		    transform.localScale.x = -X;
	    }
	    else if (Input.GetKey(KeyCode.D)) {
		    transform.localScale.x = X;
	    }
    }
}

Edit what’s between < >

3

Already tested that, but i get a error.
Assets/Scripts/Test.cs(34,23): error CS1612: Cannot modify a value type return value of `UnityEngine.Transform.localScale’. Consider storing the value in a temporary variable

4

Sorry, above script won’t work because you need re construct a Vector3.
You will need something like this:

using UnityEngine;
using System.Collections;

public class TestScript : MonoBehaviour {

    public float X;

    void Start()
    {
	    X = transform.localScale.x;
    }

    void Update()
    {
	    if(Input.GetKey(KeyCode.A))
        {
            transform.localScale = new Vector3(transform.localScale.x - X, transform.localScale.y, transform.localScale.z);
	    }
	    else if (Input.GetKey(KeyCode.D))
        {
            transform.localScale = new Vector3(transform.localScale.x + X, transform.localScale.y, transform.localScale.z);
	    }
    }
}
5

Yep, look at me second post.

6

Well it almost works, now on each click, the sprite faces where its movin, but he increases size on the X axis, and there is no stop.
Do you understand? or i will post a picture

7

Well yes, that’s what you programmed it to do.
On keypress you modify the localScale.

8

Yeah but in the JS, it just rotates 90 degrees, and in the C# it rotates 90 degrees, after that it increases in X. Thats what you coded to but if you test both scripts u see the diffrence.

9

Hello,

Try:

using UnityEngine;
using System.Collections;
     
public class TestScript : MonoBehaviour {
     
    public float X;
     
    void Start()
    {
        X = transform.localScale.x;
    }
     
    void Update()
    {
        if(Input.GetKey(KeyCode.A))
        {
            transform.localScale = new Vector3(-X, transform.localScale.y, transform.localScale.z);
        }
        else if (Input.GetKey(KeyCode.D))
        {
            transform.localScale = new Vector3(X, transform.localScale.y, transform.localScale.z);
        }
    }
}

Cheers

Paul

10

Thanks so much, now it works good!
Thank you gruddllebug and appels!

11

Now there is a new problem i have tried to solve…
When i add the script, it works perfect, but when i save and restart unity, the player only change direction, he can’t walk.
It is like the script above wrote over my movement script or something. I should also add i got 2 diffrent script, this one for my rotation, the other one for movement , jumping. Im using same key to walk that i use in the rotation script above!

Thanks!