Need help converting js to C#

hey guys I'm trying to convert a js script to a c# script because my movement system is in c# and it would be alot simpler if this function were in c# then to rescript my entire movement and combat system in js so I was wondering if someone could help me out...I've already done a good piece of it...I just need probably the last few lines (I'm having a hard time understanding exactly what Vectors are...that could have something to do with it)

ok this is the original js code

 //vars for the whole sheet
 var colCount    : int =  3;
 var rowCount    : int =  4;
 
 //vars for animation
 var rowNumber   : int =  0; //Zero Indexed
 var colNumber   : int =  0; //Zero Indexed
 var totalCells  : int =  3;
 var fps  : int = 10;
 var offset  : Vector2;  //Maybe this should be a private var
 
 //Update
 function Update () { SetSpriteAnimation(colCount,rowCount,rowNumber,colNumber,totalCells,fps);  }
 
 //SetSpriteAnimation
 function SetSpriteAnimation(colCount : int,rowCount : int,rowNumber : int,colNumber : int,totalCells : int,fps : int){
 
     // Calculate index
     var index : int = Time.time * fps;
     // Repeat when exhausting all cells
     index = index % totalCells;
    
     // Size of every cell
     var size = Vector2 (1.0 / colCount, 1.0 / rowCount);
    
     // split into horizontal and vertical index
     var uIndex = index % colCount;
     var vIndex = index / colCount;
  
     // build offset
     // v coordinate is the bottom of the image in opengl so we need to invert.
     offset = Vector2 ((uIndex+colNumber) * size.x, (1.0 - size.y) - (vIndex+rowNumber) * size.y);
    
     renderer.material.SetTextureOffset ("_MainTex", offset);
     renderer.material.SetTextureScale  ("_MainTex", size);
 }

and this is the C# code

 using UnityEngine;
 using System.Collections;
 
 public class PlayerAnimation : MonoBehaviour 
 {
     //vars
     int colcount = 3;
     int rowcount = 4;
     int rownum = 0;
     int colnum = 0;
     int totalcells = 3;
     int fps = 10;
     Vector2 offset;
     // Use this for initialization
     void Start () 
     {
     
     }
     
     // Update is called once per frame
     void Update () 
     {
         spriteanimation(colcount,rowcount,rownum,colnum,totalcells,fps);
     }
     
 IEnumerator spriteanimation(int colcount,int rowcount,int rownum,int colnum,int totalcells,int fps)
     {
         float index = Time.time * fps;
         index = index % totalcells;
         
         int size = Vector2(1.0 / colcount, 1.0 / rowcount);
         
         float uindex = index % colcount;
         float vindex = index / colcount;
         
         offset = Vector2((uindex + colnum) * size.x, (1.0 - size.y) - (vindex+rownum) * size.y);
         
         renderer.material.SetTextureOffset ("_MainTex", offset);
         renderer.material.SetTextureScale ("_MainTex", size);
     }
 }