Random.Range 仅给出一个输出

Kub*_*320 0 c# unity-game-engine

我有个问题。每当我开始游戏时,我都会尝试随机化背景图像,但无论我重新滚动多少次,“BackgroundImageNumber”的输出始终为 1。提前致谢。

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

public class MenuBackgroundChooser : MonoBehaviour
{
    Image BackgroundImage;
    int BackgroundImageNumber;
    
    public Sprite Background1;
    public Sprite Background2;
    
    void Awake()
    {
        BackgroundImage = GetComponent<Image>();
    }
    
    void Start()
    {
        //Set the second nuber to the number of images and increase the switch when adding a background
        BackgroundImageNumber = Random.Range(1, 2);
        
        Debug.Log(BackgroundImageNumber);
        
        switch(BackgroundImageNumber)
        {
            case 1:
                BackgroundImage.sprite = Background1;
                break;
            case 2:
                BackgroundImage.sprite = Background2;
                break;
        }
    }
}
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Sno*_*mer 8

如果您检查 Unity 的 Random.Range(int,int) 方法的文档:https://docs.unity3d.com/ScriptReference/Random.Range.html ,您将看到它被声明为public static int Range(int minInclusive, int maxExclusive),请注意第二个数字是 max独家的。

因此,为了获得随机值 1 或 2,您应该像这样使用它:Random.Range(1,3)