统一加载另一个场景时将int变量重置 [英] int variable resetting when loading another scene in unity

问题描述

我创建了一个足球比分计算器.我有一个可以更改场景的按钮，但是当我更改场景并重新打开它时，得分值将重置为0.这是代码:

I created a football score calculator. I have a button that changes the scene, but when I change the scene and reopen it the score value is reset to 0. Here is the code:

public class Main : MonoBehaviour {
    public Text plusUp;
    public int value = 0;

    public void button(int sc)
    {
        SceneManager.LoadScene(sc);
    }

    public void plus()
    {
        value++;
        plusUp.text = value.ToString();
    }
}

推荐答案

1..可以在保存要保存变量的对象上使用方法Object.DontDestroyOnLoad.加载另一个场景时，它将保持GameObject该脚本的附加状态:

1. You can use the method Object.DontDestroyOnLoad on the object that hold the variable you want to save. It will keep the GameObject this script is attached too alive when another scene is loaded:

void Awake()
{
    DontDestroyOnLoad(this.gameObject);
}

有关更多信息，请参见文档

See the documentation for more informations

您也可以制作一个Singleton，但是这种设计模式稍微复杂一点，因为在加载另一个场景时Unity会销毁它.您仍然必须使用DontDestroyOnLoad来了解如何在其 GitHub页面

You can also make a Singleton but this design pattern is a little more complex as Unity will destroy it when you load another scene. You still have to use DontDestroyOnLoad see how to implement this pattern on their GitHub page

2..或者，您可以在加载另一个场景之前将值保存在磁盘上，然后使用PlayerPrefs辅助方法加载该值:

2. Or you can save the value on the disk before loading another scene and then load the value with PlayerPrefs helpers methods:

public int value = 0;

void Awake()
{
    //Load the saved score (this value will be saved even if you restart the app)
    value = PlayerPrefs.GetInt("Score");
}

public void button1(int sc)
{
    //Save your value before you load the scene
    PlayerPrefs.SetInt("Score", value);
    SceneManager.LoadScene(sc);
}    

有关类型的更多信息，请参见文档.

See the documentation for more informations on the types.

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