Add core game components including ConfigFileHandler, GameManager, SaveSystem, and UIManager

scripts/components/InvulnerabilityComponent.cs

@@ -0,0 +1,31 @@
+using Godot;
+
+namespace Mr.BrickAdventures.scripts.components;
+
+public partial class InvulnerabilityComponent : Node
+{
+    [Export] public float Duration { get; set; } = 1f;
+    [Export] public FlashingComponent FlashingComponent { get; set; }
+    
+    private bool _isInvulnerable = false;
+
+    public void Activate()
+    {
+        if (_isInvulnerable)
+            return;
+        
+        _isInvulnerable = true;
+        FlashingComponent?.StartFlashing();
+
+        var timer = GetTree().CreateTimer(Duration);
+        timer.Timeout += Deactivate;
+    }
+
+    private void Deactivate()
+    {
+        _isInvulnerable = false;
+        FlashingComponent?.StopFlashing();
+    }
+    
+    public bool IsInvulnerable() => _isInvulnerable;
+}