Unity Number 向导返回按钮

Question

我刚刚创建了一个数字游戏，女巫会猜出你在想什么数字，并将其作为 TextMeshProUGUI 元素显示在屏幕上。我想添加一个后退按钮，这样当您按下不正确的按钮时，TextMeshProUGUI 元素会显示用户按下错误按钮之前显示的值。

脚本：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.UI;

public class NumberWizard : MonoBehaviour {

[SerializeField] SceneLoader sceneLoader;
[SerializeField] int max;
[SerializeField] int min;
[SerializeField] TextMeshProUGUI guessText;

int guess;

// Use this for initialization
void Start ()
{
    StartGame();
}

void StartGame()
{
    NextGuess();
}

public void OnPressHigher()
{
    min = guess + 1;
    NextGuess();
}

public void OnPressLower()
{
    max = guess - 1;
    NextGuess();
}

void NextGuess()
{
    guess = Random.Range(min, max+1);
    guessText.text = guess.ToString();
}

public void Back()
{
    //Back code should go here
}
}

Scene View

Answer 1

你只需要记住最后的猜测：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.UI;

public class NumberWizard : MonoBehaviour {

[SerializeField] SceneLoader sceneLoader;
[SerializeField] int max;
[SerializeField] int min;
[SerializeField] TextMeshProUGUI guessText;

int guess;
int lastGuess;
int lastMin;
int lastMax;

// Use this for initialization
void Start ()
{
    StartGame();
}

void StartGame()
{
    NextGuess();
}

public void OnPressHigher()
{
    lastMin = min;

    min = guess + 1;
    NextGuess();
}

public void OnPressLower()
{
    lastMax = max;

    max = guess - 1;
    NextGuess();
}

void NextGuess()
{
    lastGuess = guess;

    guess = Random.Range(min, max+1);
    guessText.text = guess.ToString();
}

public void Back()
{
    guess = lastGuess;
    min = lastMin;
    max = lastMax;

    guessText.text = guess.ToString();
}
}

如果这不是你想要的，请写评论，我会编辑答案