Declaring variables in Update().

Questions & Answers
1

Simple code, but how do I declare a variable to use in an update function? Just trying to transform an object equally along X and Z axis.

    using UnityEngine;
    using System.Collections;
    
    public class popcirc : MonoBehaviour {
    
    	// Use this for initialization
    	void Start () {
    		float size = Random.Range(-1.0F, 1.0F);
    	}
    	
    	// Update is called once per frame
    	void Update () {
    		transform.localScale += new Vector3(size, 0, size);
    	}
    }
2

like this:

using UnityEngine;
using System.Collections;
 
public class popcirc : MonoBehaviour
{
    private float size;

    void Start()
    {
        size = Random.Range(-1.0F, 1.0F);
    }
 
    void Update()
    {
        transform.localScale += new Vector3(size, 0, size);
    }
}
3

using UnityEngine;
using System.Collections;

public class popcirc : MonoBehaviour {

    private float size;
    // Use this for initialization
    void Start () {
        size = Random.Range(-1.0F, 1.0F);
    }

    // Update is called once per frame
    void Update () {
        transform.localScale += new Vector3(size, 0, size);
    }
}