Refactor pause handling; implement GameBus for pause state management and update event popup behavior

Scripts/Components/EventManager.cs

@@ -50,7 +50,7 @@ public partial class EventManager : Node
     
     private void FireEvent(EventDefinition eventDef)
     {
-        GetTree().Paused = true;
+        GameBus.Instance.SetPause(true);
 
         var popup = _eventPopupScene.Instantiate<EventPopup>();
         _eventPopupContainer.AddChild(popup);

Scripts/Components/PauseManager.cs

@@ -1,4 +1,5 @@
 using Godot;
+using ParasiticGod.Scripts.Singletons;
 
 namespace ParasiticGod.Scripts.Components;
 
@@ -13,17 +14,30 @@ public partial class PauseManager : CanvasLayer
         ProcessMode = ProcessModeEnum.Always;
         _pauseMenu.Hide();
         _pauseButton.Pressed += TogglePause;
+        
+        GameBus.Instance.PauseStateChanged += OnPauseStateChanged;
     }
 
     public override void _Input(InputEvent @event)
     {
         if (@event.IsActionPressed("pause")) TogglePause();
     }
+    
+    public override void _ExitTree()
+    {
+        if (GameBus.Instance != null)
+        {
+            GameBus.Instance.PauseStateChanged -= OnPauseStateChanged;
+        }
+    }
 
     private void TogglePause()
     {
-        var isPaused = !GetTree().Paused;
-        GetTree().Paused = isPaused;
+        GameBus.Instance.SetPause(!GetTree().Paused);
+    }
+    
+    private void OnPauseStateChanged(bool isPaused)
+    {
         _pauseMenu.Visible = isPaused;
     }
 }

Scripts/Singletons/GameBus.cs

@@ -32,6 +32,7 @@ public partial class GameBus : Node
     public event Action PopulationVisualsUpdated;
     public event Action<string> AgeAdvanced;
     public event Action GameWon;
+    public event Action<bool> PauseStateChanged;
 
     public override void _EnterTree()
     {
@@ -133,12 +134,18 @@ public partial class GameBus : Node
         {
             effect.Execute(_gameState);
         }
-        GetTree().Paused = false;
+        SetPause(false);
     }
     
     public void SubscribeToStat(Stat stat, Action<double> listener) => _gameState.Subscribe(stat, listener);
     public void UnsubscribeFromStat(Stat stat, Action<double> listener) => _gameState.Unsubscribe(stat, listener);
     
+    public void SetPause(bool isPaused)
+    {
+        GetTree().Paused = isPaused;
+        PauseStateChanged?.Invoke(isPaused);
+    }
+    
     public GameState CurrentState => _gameState;
     
     [ConsoleCommand("set_stat", "Sets the value of a specified stat.")]

Scripts/UI/EventPopup.cs

@@ -16,7 +16,12 @@ public partial class EventPopup : PanelContainer
     private EventDefinition _eventDef;
     private Timer _timeoutTimer;
     private readonly RandomNumberGenerator _rng = new();
-    
+
+    public override void _Ready()
+    {
+        ProcessMode = ProcessModeEnum.Always;
+    }
+
     public void DisplayEvent(EventDefinition eventDef)
     {
         _eventDef = eventDef;