feat: rework Pause

Now a dialog.

* Also fix the new BetterGiveUp panic restart
* Also move SortByInternal's PNG away from the root namespace

Enhancements/Pause/MU3.Battle/patch_GameEngine.cs

@@ -1,11 +1,87 @@
-using MU3.Sequence;
+using MU3.Collab;
+using MU3.DB;
+using MU3.Game;
+using MU3.Notes;
+using MU3.Util;
+using System.Collections;
+using System.Reflection;
+using UnityEngine;
 
 namespace MU3.Battle;
 
 class patch_GameEngine: GameEngine {
+    private static readonly float PAUSE_CD = 5f;
+
+    private NotesManager _notesManager;
+
+    private static bool _paused;
+    private float _pauseTimer;
+    private UIDialog _dialog;
+
     public extern void orig_reset();
     public new void reset() {
         orig_reset();
-        patch_PlayMusic.Paused = false;
+        togglePause(false);
+        _pauseTimer = 0;
+
+        if(_dialog != null) {
+            _dialog.forceCancel();
+            _dialog = null;
+        }
+    }
+
+    public extern void orig_execute();
+    public new void execute() {
+        if(_paused) {
+            return;
+        }
+
+        orig_execute();
+
+        _pauseTimer -= Time.deltaTime;
+
+        if(Singleton<UIInput>.instance.getTriggerOn(UIInput.Key.Service)) {
+            if(_pauseTimer < 0f && !isPartyPlay() && notesManager.isPlaying) {
+                togglePause(true);
+                _dialog = UIDialog.create(DialogID.LackOfGP, "Pause", (int _, bool _) => togglePause(false));
+                StartCoroutine(killTimer(_dialog));
+            }
+        }
+    }
+
+    private void togglePause(bool value) {
+        ((patch_GameBGM)Singleton<GameSound>.instance.gameBGM).pause(value);
+        _paused = value;
+        _notesManager.setPause(value);
+        _pauseTimer = PAUSE_CD;
+    }
+
+    private IEnumerator killTimer(UIDialog dialog) {
+        var fi = typeof(UIDialog).GetField("uiTimer_", BindingFlags.Instance | BindingFlags.NonPublic);
+
+        if(fi == null) {
+            yield break;
+        }
+
+        int limit = 500;
+        UITimer timer;
+        do {
+            yield return new WaitForEndOfFrame();
+            timer = (UITimer)fi.GetValue(dialog);
+            if(--limit == 0) {
+                yield break;
+            }
+        } while(timer == null);
+
+        timer.Pause = true;
+        timer.Show = false;
+        timer.enabled = false;
+
+        yield break;
+    }
+
+    private bool isPartyPlay() {
+        Party.IManager manager = Party.get();
+        return manager != null && manager.isJoinAndActive();
     }
 }