Add new skills: Double Jump, Ground Pound, Brick Armor, and Brick Shield; implement skill removal signal in SkillManager (#11)

scripts/components/BrickShieldSkillComponent.cs

@@ -0,0 +1,72 @@
+using Godot;
+using Mr.BrickAdventures.Autoloads;
+using Mr.BrickAdventures.scripts.interfaces;
+using Mr.BrickAdventures.scripts.Resources;
+
+namespace Mr.BrickAdventures.scripts.components;
+
+[GlobalClass]
+public partial class BrickShieldSkillComponent : Node, ISkill
+{
+    [Export] public PackedScene ShieldScene { get; set; }
+    
+    private PlayerController _player;
+    private Node2D _shieldInstance;
+    private SkillData _skillData;
+    private GameManager _gameManager;
+    private SkillManager _skillManager;
+    private HealthComponent _shieldHealth;
+
+    public override void _Ready()
+    {
+        _gameManager = GetNode<GameManager>("/root/GameManager");
+        _skillManager = GetNode<SkillManager>("/root/SkillManager");
+    }
+
+    public void Initialize(Node owner, SkillData data)
+    {
+        _player = owner as PlayerController;
+        _skillData = data;
+    }
+
+    public void Activate()
+    {
+        if (_player == null || ShieldScene == null || _shieldInstance != null) return;
+
+        _shieldInstance = ShieldScene.Instantiate<Node2D>();
+        _player.AddChild(_shieldInstance);
+        _shieldInstance.Position = Vector2.Zero;
+        _shieldInstance.TreeExiting += OnShieldDestroyed;
+        _shieldHealth = _shieldInstance.GetNode<HealthComponent>("HealthComponent");
+    }
+
+    public void Deactivate()
+    {
+        if (_shieldInstance != null && IsInstanceValid(_shieldInstance))
+        {
+            _shieldInstance.TreeExiting -= OnShieldDestroyed;
+            _shieldInstance.QueueFree();
+        }
+        _shieldInstance = null;
+    }
+
+    public void ApplyUpgrade(SkillUpgrade upgrade)
+    {
+        upgrade.Properties.TryGetValue("shield_health", out var newHealth);
+        if (_shieldHealth != null)
+        {
+            _shieldHealth.Health = (float)newHealth;
+            _shieldHealth.MaxHealth = (float)newHealth;
+        }
+    }
+    
+    private void OnShieldDestroyed()
+    {
+        if (_gameManager != null && _skillData != null && _skillManager != null)
+        {
+            _gameManager.RemoveSkill(_skillData.Name);
+            _skillManager.RemoveSkill(_skillData.Name);
+        }
+        _shieldInstance = null;
+    }
+}