unity 跳转登录界面

1.登录跳转：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class change : MonoBehaviour
{
public Text txt_info;
public InputField input_user, input_pwd;
public void Denglu()
{
string str1=input_user.text;
string str2=input_pwd.text;
if (str1 == "admin" && str2 == "123456")
//登陆成功，跳转到指定的场景中去
tz();
else
txt_info.text = "sorry!";
}
public void tz()
{
SceneManager.LoadScene("eet");
}

public void jieshu()
{
Application.Quit();
}
}

 

2.吃金币：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class move : MonoBehaviour
{

private Rigidbody ri;
public int speed = 5;
public Text txt;
private int score = 0;
void Start()
{
ri = GetComponent<Rigidbody>();

}


void Update ()

{
float h = Input.GetAxis("Horizontal");
float v = Input.GetAxis("Vertical");
ri.AddForce(new Vector3(h,0,v)*speed);
}
void OnCollisionEnter(Collision cs)
{
if (cs.collider.tag == "jinbi")
{
score += 10;
txt.text = score.ToString();
Destroy(cs.collider.gameObject);
}

if (cs.collider.tag == "yinbi")
{
score += 3;
txt.text = score.ToString();
Destroy(cs.collider.gameObject);
}

}

public void fh()
{
SceneManager.LoadScene("denglu");
}

}