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

scripts/components/BrickArmorSkillComponent.cs

@@ -0,0 +1,48 @@
+using Godot;
+using Mr.BrickAdventures.scripts.interfaces;
+using Mr.BrickAdventures.scripts.Resources;
+
+namespace Mr.BrickAdventures.scripts.components;
+
+[GlobalClass]
+public partial class BrickArmorSkillComponent : Node, ISkill
+{
+    private HealthComponent _healthComponent;
+    private SkillData _skillData;
+    private float _armorBonus = 0;
+    
+    public void Initialize(Node owner, SkillData data)
+    {
+        if (owner is not PlayerController player) return;
+        _healthComponent = player.GetNode<HealthComponent>("HealthComponent");
+        _skillData = data;
+    }
+
+    public void Activate()
+    {
+        if (_healthComponent == null || _skillData == null) return;
+        ApplyUpgrade(_skillData.Upgrades[_skillData.Level - 1]);
+    }
+
+    public void Deactivate()
+    {
+        if (_healthComponent == null) return;
+        _healthComponent.MaxHealth -= _armorBonus;
+        if (_healthComponent.Health > _healthComponent.MaxHealth)
+        {
+            _healthComponent.SetHealth(_healthComponent.MaxHealth);
+        }
+        _armorBonus = 0;
+    }
+
+    public void ApplyUpgrade(SkillUpgrade upgrade)
+    {
+        if (_healthComponent == null || upgrade == null) return;
+
+        _healthComponent.MaxHealth -= _armorBonus;
+
+        _armorBonus = (float)upgrade.Properties["health_bonus"];
+        _healthComponent.MaxHealth += _armorBonus;
+        _healthComponent.IncreaseHealth(_armorBonus);
+    }
+}