特效新内容。修复gameplay致命bug和分数保存bug

Assets/scripts/gamePlay_gameplay/GameManager.cs

@@ -1,4 +1,4 @@
-using System.IO;
+using System.IO;
 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
@@ -204,18 +204,18 @@ public class GameManager : MonoBehaviour
 
         try
         {
-            // Reset audio time to 0 before playing to ensure playback starts from the beginning
-            musicSource.time = 0f;
+            float startTime = 0f;
+            if (delaySeconds < 0f)
+                startTime = -delaySeconds;
 
             if (delaySeconds > 0f)
             {
-                // Use coroutine instead of PlayDelayed so pause state can interrupt it
                 playbackDelayCoroutine = StartCoroutine(DelayAndPlayMusic(delaySeconds));
             }
             else
             {
-                // Immediate playback (no delay)
-                musicSource.time = 0f;
+                float clampedStartTime = ClampAudioStartTime(startTime);
+                musicSource.time = clampedStartTime;
                 musicSource.Play();
                 PlaybackStarted = true;
                 Debug.Log("GameManager.PlayMusicWithDelay: Music playback started immediately (no delay)");
@@ -226,7 +226,8 @@ public class GameManager : MonoBehaviour
             Debug.LogWarning($"PlayMusicWithDelay failed: {ex}");
             try 
             { 
-                musicSource.time = 0f;
+                float clampedStartTime = ClampAudioStartTime(delaySeconds < 0f ? -delaySeconds : 0f);
+                musicSource.time = clampedStartTime;
                 musicSource.Play(); 
                 PlaybackStarted = true;
             } 
@@ -234,6 +235,14 @@ public class GameManager : MonoBehaviour
         }
     }
 
+    private float ClampAudioStartTime(float startTime)
+    {
+        if (musicSource == null || musicSource.clip == null)
+            return Mathf.Max(0f, startTime);
+
+        return Mathf.Clamp(startTime, 0f, musicSource.clip.length);
+    }
+
     private IEnumerator DelayAndPlayMusic(float delaySeconds)
     {
         Debug.Log($"GameManager.DelayAndPlayMusic: waiting {delaySeconds} seconds before playing (respects pause state)");