Unity 場景切換以及 Data 共享 - StackPenguin 部落格

這一篇文章主要是想分享 Unity的場景切換，那切換到不同的場景，要怎麼樣使用上一個場景所帶來的資料。

SongSelect Scene

按下Start按鈕開始，要把資料帶到下一個遊戲頁面。

MusicData.cs

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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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[CreateAssetMenu(fileName = "MusicData", menuName = "Rhythm/MusicData")]
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public class MusicData : ScriptableObject
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{
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    public string musicName;
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    public string author;
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    public AudioClip audioClip;
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    public Sprite coverImage;
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    public int bpm;
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    public float length;
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}

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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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[CreateAssetMenu(fileName = "MusicData", menuName = "Rhythm/MusicData")]
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public class MusicData : ScriptableObject
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{
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    public string musicName;
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    public string author;
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    public AudioClip audioClip;
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    public Sprite coverImage;
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    public int bpm;
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    public float length;
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}

SongDetailUI.cs

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using UnityEngine;
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using UnityEngine.UI;
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using UnityEngine.SceneManagement;
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public class SongDetailUI : MonoBehaviour
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{
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    public Image coverImage;
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    public TMPro.TextMeshProUGUI titleText;
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    public TMPro.TextMeshProUGUI artistText;
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    public TMPro.TextMeshProUGUI infoText;
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    private MusicData current;
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    public void ShowMusic(MusicData music)
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    {
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        current = music;
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        // 將音樂資料帶入右邊的detail UI
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        coverImage.sprite = music.coverImage;
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        titleText.text = music.musicName;
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        artistText.text = music.author;
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        infoText.text = $"BPM: {music.bpm}  Length: {music.length}";
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    }
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    public void Btn_Play() {
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        if (current == null) {
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            Debug.LogError("沒有選擇歌曲，無法開始遊戲");
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            return;
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        }
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        // 將音樂存到GameData
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        GameData.selectedMusic = current;
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        SceneManager.LoadScene("GameScene");
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    }
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}

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using UnityEngine;
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using UnityEngine.UI;
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using UnityEngine.SceneManagement;
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public class SongDetailUI : MonoBehaviour
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{
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    public Image coverImage;
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    public TMPro.TextMeshProUGUI titleText;
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    public TMPro.TextMeshProUGUI artistText;
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    public TMPro.TextMeshProUGUI infoText;
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    private MusicData current;
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    public void ShowMusic(MusicData music)
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    {
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        current = music;
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        // 將音樂資料帶入右邊的detail UI
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        coverImage.sprite = music.coverImage;
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        titleText.text = music.musicName;
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        artistText.text = music.author;
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        infoText.text = $"BPM: {music.bpm}  Length: {music.length}";
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    }
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    public void Btn_Play() {
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        if (current == null) {
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            Debug.LogError("沒有選擇歌曲，無法開始遊戲");
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            return;
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        }
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        // 將音樂存到GameData
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        GameData.selectedMusic = current;
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        SceneManager.LoadScene("GameScene");
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    }
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}

Button 觸發轉場

在Start按鈕定義的事件

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```
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public void Btn_Play() {
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    if (current == null) {
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        Debug.LogError("沒有選擇歌曲，無法開始遊戲");
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        return;
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    }
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    // 將音樂存到GameData
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    GameData.selectedMusic = current;
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    SceneManager.LoadScene("GameScene");
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}

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public void Btn_Play() {
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    if (current == null) {
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        Debug.LogError("沒有選擇歌曲，無法開始遊戲");
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        return;
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    }
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    // 將音樂存到GameData
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    GameData.selectedMusic = current;
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    SceneManager.LoadScene("GameScene");
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}

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在另外一個遊戲場景，已經可以聽到點擊的對應的資料音樂。
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透過 MusicData music = GameData.selectedMusic; 抓取剛剛的音樂。

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

public class GameMusicPlayer : MonoBehaviour { private void Start() { MusicData music = GameData.selectedMusic; if (music == null) { Debug.LogError(“沒有選擇歌曲，無法開始遊戲”); return; } // 抓到全域的AudioSource AudioSource audio = GetComponent(); audio.clip = music.audioClip; audio.Play();

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    Debug.Log("開始播放：" + music.musicName);
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}

}

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

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    Debug.Log("開始播放：" + music.musicName);
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}

}

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成功取得音樂
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![](https://img.stackpenguin.com/images/Unity%20%E5%A0%B4%E6%99%AF%E5%88%87%E6%8F%9B%E4%BB%A5%E5%8F%8A%20Data%20%E5%85%B1%E4%BA%AB/CleanShot-2025-12-04-at-11-02-07.jpg)
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以上就是轉場還有資料怎麼使用的一個概略展示。