2026-04-21 가격창, 사운드

Assets/02_Scripts/Managers/SoundManager.cs

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+using UnityEngine;
+using UnityEngine.Audio;
+
+public class SoundManager : MonoBehaviour
+{
+    public static SoundManager Instance { get; private set; }
+
+    [SerializeField] private AudioSource _bgmSource;
+    [SerializeField] private AudioMixer _mixer;
+
+    private const string BGM_VOLUME_PARAM = "BGMVolume";
+    private const string SFX_VOLUME_PARAM = "SFXVolume";
+
+    private void Awake()
+    {
+        if (Instance != null && Instance != this)
+        {
+            Destroy(gameObject);
+            return;
+        }
+        Instance = this;
+    }
+
+    private void OnDestroy()
+    {
+        if (Instance == this) Instance = null;
+    }
+
+    public void PlayBGM(AudioClip clip)
+    {
+        if (_bgmSource == null || clip == null) return;
+        _bgmSource.clip = clip;
+        _bgmSource.loop = true;
+        _bgmSource.Play();
+    }
+
+    public void StopBGM()
+    {
+        if (_bgmSource == null) return;
+        _bgmSource.Stop();
+    }
+
+    public async Awaitable CrossfadeBGM(AudioClip next, float duration = 1f)
+    {
+        if (_bgmSource == null || next == null) return;
+
+        float startVolume = _bgmSource.volume;
+
+        for (float t = 0f; t < duration; t += Time.deltaTime)
+        {
+            _bgmSource.volume = Mathf.Lerp(startVolume, 0f, t / duration);
+            await Awaitable.NextFrameAsync();
+        }
+
+        _bgmSource.Stop();
+        _bgmSource.clip = next;
+        _bgmSource.loop = true;
+        _bgmSource.Play();
+
+        for (float t = 0f; t < duration; t += Time.deltaTime)
+        {
+            _bgmSource.volume = Mathf.Lerp(0f, startVolume, t / duration);
+            await Awaitable.NextFrameAsync();
+        }
+
+        _bgmSource.volume = startVolume;
+    }
+
+    public void SetBGMVolume(float linear) => SetMixerVolume(BGM_VOLUME_PARAM, linear);
+    public void SetSFXVolume(float linear) => SetMixerVolume(SFX_VOLUME_PARAM, linear);
+
+    private void SetMixerVolume(string parameter, float linear)
+    {
+        if (_mixer == null) return;
+        float db = linear > 0.0001f ? Mathf.Log10(linear) * 20f : -80f;
+        _mixer.SetFloat(parameter, db);
+    }
+}

Assets/02_Scripts/Managers/SoundManager.cs.meta

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+fileFormatVersion: 2
+guid: 6cb746b1eda27114f9eac842fd7c708b