Ошибка при описании параметров метода - C#

using UnityEngine;
using System.Collections;
 
public class call : MonoBehaviour 
{
    //use to transform some objects
 
    // Use this for initialization
    void Start () 
    {
    
    }
 
    public static void call(GameObject obj, float xpf,ypf)
    {
        
    }
 
    // Update is called once per frame
    void Update () 
    {
    
    }
}

public static void call(GameObject obj, float xpf,ypf)
    {
        
    }