展前冒死重构

Assets/scripts/settings/controllerSettings.cs

@@ -34,10 +34,13 @@ public class controllerSettings : MonoBehaviour
     private bool previousKeyValid = false;
 
     // slider range
-    private const float NoteSpeedMin = 0.5f;
-    private const float NoteSpeedMax = 2f;
+    private const float NoteSpeedMin = 1f;
+    // Player-facing range is 1-3. NoteSpawner multiplies it by 2, so the real range is 2-6.
+    private const float NoteSpeedMax = 3f;
     private const string NoteSpeedPrefKey = "noteSpeedMultiplier";
-    private const float NoteSpeedDefault = 1.0f;
+    private const string NoteSpeedDefaultVersionKey = "noteSpeedMultiplierDefaultVersion";
+    private const int NoteSpeedDefaultVersion = 2;
+    private const float NoteSpeedDefault = 2.0f;
 
     // continuous change
     private Coroutine continuousChangeCoroutine = null;
@@ -505,10 +508,22 @@ public class controllerSettings : MonoBehaviour
     {
         if (PlayerPrefs.HasKey(NoteSpeedPrefKey))
         {
+            int version = PlayerPrefs.GetInt(NoteSpeedDefaultVersionKey, 0);
+            float saved = PlayerPrefs.GetFloat(NoteSpeedPrefKey, NoteSpeedDefault);
+            if (version < NoteSpeedDefaultVersion && Mathf.Approximately(saved, 3f))
+            {
+                saved = NoteSpeedDefault;
+            }
+
+            saved = Mathf.Clamp(saved, NoteSpeedMin, NoteSpeedMax);
+            PlayerPrefs.SetFloat(NoteSpeedPrefKey, saved);
+            PlayerPrefs.SetInt(NoteSpeedDefaultVersionKey, NoteSpeedDefaultVersion);
+            PlayerPrefs.Save();
             return;
         }
 
         PlayerPrefs.SetFloat(NoteSpeedPrefKey, NoteSpeedDefault);
+        PlayerPrefs.SetInt(NoteSpeedDefaultVersionKey, NoteSpeedDefaultVersion);
         PlayerPrefs.Save();
     }