How can i get my gameobject(sprite)with raycast and then use fade effect on raycasted object?

using UnityEngine;
using System.Collections;

public class Touch : MonoBehaviour
{
public SpriteRenderer sprite;



//Update is called once per frame
void Update ()
{
if (Application.platform == RuntimePlatform.WindowsEditor) // Else if Desktop
{
if (Input.GetMouseButtonDown (0))
{
StartCoroutine(Fade(/*what should i write here*/));
}
}
}

private void rayCol()
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit = new RaycastHit();
if(Input.GetMouseButtonDown(0))
{
if(Physics.Raycast(ray, out hit))
{
//what should i write here,I want to get my object with my raycast,I can raycast colider.name but i dont know how to get my gameobject(In SpriteRendered form)
}
}

}

IEnumerator Fade(SpriteRenderer spriteName)
{
for (float f = 1f; f > -0.01f; f -= 0.1f)
{
Color c = spriteName.material.color;
c.a = f;
spriteName.material.color = c;
yield return null;
}
}
}

 

bit of a guess since I don't do 2d, but something like

Code (csharp):

1.  
2. hit.transform.GetComponent<SpriteRenderer>()
3.  

... ?

oh and http://forum.unity3d.com/threads/using-code-tags-properly.143875/

 

thanks dude,it works!