feat: Implement a comprehensive global event bus with new event handlers and integrate player health and collection events.

scripts/Events/GhostEventHandler.cs

@@ -1,4 +1,5 @@
 using Godot;
+using Mr.BrickAdventures;
 using Mr.BrickAdventures.Autoloads;
 
 namespace Mr.BrickAdventures.scripts.Events;
@@ -10,11 +11,10 @@ public partial class GhostEventHandler : Node
 
     public override void _Ready()
     {
-        _ghostManager = GetNode<GhostManager>("/root/GhostManager");
-        var eventBus = GetNode<EventBus>("/root/EventBus");
-        
-        eventBus.LevelStarted += OnLevelStarted;
-        eventBus.LevelCompleted += OnLevelCompleted;
+        _ghostManager = GetNode<GhostManager>(Constants.GhostManagerPath);
+
+        EventBus.Instance.LevelStarted += OnLevelStarted;
+        EventBus.Instance.LevelCompleted += OnLevelCompleted;
     }
 
     private void OnLevelStarted(int levelIndex, Node currentScene)
@@ -23,7 +23,7 @@ public partial class GhostEventHandler : Node
         _ghostManager.StartRecording(levelIndex);
         _ghostManager.SpawnGhostPlayer(levelIndex, currentScene);
     }
-    
+
     private void OnLevelCompleted(int levelIndex, Node currentScene, double completionTime)
     {
         _ghostManager.StopRecording(true, completionTime);

scripts/Events/ScoreEventHandler.cs

@@ -0,0 +1,34 @@
+using Godot;
+using Mr.BrickAdventures;
+using Mr.BrickAdventures.Autoloads;
+
+namespace Mr.BrickAdventures.scripts.Events;
+
+/// <summary>
+/// Handles coin collection events and updates the session state.
+/// Replaces the manual signal wiring in ScoreComponent.
+/// </summary>
+public partial class ScoreEventHandler : Node
+{
+    private GameManager _gameManager;
+
+    public override void _Ready()
+    {
+        _gameManager = GetNode<GameManager>(Constants.GameManagerPath);
+
+        EventBus.Instance.CoinCollected += OnCoinCollected;
+    }
+
+    public override void _ExitTree()
+    {
+        if (EventBus.Instance != null)
+            EventBus.Instance.CoinCollected -= OnCoinCollected;
+    }
+
+    private void OnCoinCollected(int amount, Vector2 position)
+    {
+        var currentCoins = (int)_gameManager.CurrentSessionState["coins_collected"];
+        _gameManager.CurrentSessionState["coins_collected"] = currentCoins + amount;
+        GD.Print($"ScoreEventHandler: Collected {amount} coins. Total session coins: {currentCoins + amount}");
+    }
+}

scripts/Events/ScoreEventHandler.cs.uid

@@ -0,0 +1 @@
+uid://cs4cfk7g5vh2v

scripts/Events/SpeedRunEventHandler.cs

@@ -1,4 +1,5 @@
 using Godot;
+using Mr.BrickAdventures;
 using Mr.BrickAdventures.Autoloads;
 
 namespace Mr.BrickAdventures.scripts.Events;
@@ -10,10 +11,9 @@ public partial class SpeedRunEventHandler : Node
 
     public override void _Ready()
     {
-        _speedRunManager = GetNode<SpeedRunManager>("/root/SpeedRunManager");
-        var eventBus = GetNode<EventBus>("/root/EventBus");
-        
-        eventBus.LevelCompleted += OnLevelCompleted;
+        _speedRunManager = GetNode<SpeedRunManager>(Constants.SpeedRunManagerPath);
+
+        EventBus.Instance.LevelCompleted += OnLevelCompleted;
     }
 
     private void OnLevelCompleted(int levelIndex, Node currentScene, double completionTime)

scripts/Events/StatisticsEventHandler.cs

@@ -0,0 +1,62 @@
+using Godot;
+using Mr.BrickAdventures;
+using Mr.BrickAdventures.Autoloads;
+
+namespace Mr.BrickAdventures.scripts.Events;
+
+/// <summary>
+/// Handles game events and updates statistics accordingly.
+/// Listens to EventBus signals and increments relevant stats.
+/// </summary>
+public partial class StatisticsEventHandler : Node
+{
+    private StatisticsManager _statisticsManager;
+
+    public override void _Ready()
+    {
+        _statisticsManager = GetNode<StatisticsManager>(Constants.StatisticsManagerPath);
+
+        // Subscribe to events
+        EventBus.Instance.CoinCollected += OnCoinCollected;
+        EventBus.Instance.EnemyDefeated += OnEnemyDefeated;
+        EventBus.Instance.PlayerDied += OnPlayerDied;
+        EventBus.Instance.LevelCompleted += OnLevelCompleted;
+        EventBus.Instance.ChildRescued += OnChildRescued;
+    }
+
+    public override void _ExitTree()
+    {
+        if (EventBus.Instance == null) return;
+
+        EventBus.Instance.CoinCollected -= OnCoinCollected;
+        EventBus.Instance.EnemyDefeated -= OnEnemyDefeated;
+        EventBus.Instance.PlayerDied -= OnPlayerDied;
+        EventBus.Instance.LevelCompleted -= OnLevelCompleted;
+        EventBus.Instance.ChildRescued -= OnChildRescued;
+    }
+
+    private void OnCoinCollected(int amount, Vector2 position)
+    {
+        _statisticsManager.IncrementStat("coins_collected", amount);
+    }
+
+    private void OnEnemyDefeated(Node enemy, Vector2 position)
+    {
+        _statisticsManager.IncrementStat("enemies_defeated");
+    }
+
+    private void OnPlayerDied(Vector2 position)
+    {
+        _statisticsManager.IncrementStat("deaths");
+    }
+
+    private void OnLevelCompleted(int levelIndex, Node currentScene, double completionTime)
+    {
+        _statisticsManager.IncrementStat("levels_completed");
+    }
+
+    private void OnChildRescued(Vector2 position)
+    {
+        _statisticsManager.IncrementStat("children_rescued");
+    }
+}

scripts/Events/StatisticsEventHandler.cs.uid

@@ -0,0 +1 @@
+uid://l68tjau3k6bw