feat: add BasePower abstraction

Powers/IronBody.cs

@@ -0,0 +1,51 @@
+using CounterStrikeSharp.API.Core;
+using CounterStrikeSharp.API.Modules.Utils;
+using Cs2SuperPowers.Players;
+using Cs2SuperPowers.Players.PlayerValidations;
+
+namespace Cs2SuperPowers.Powers;
+
+public class IronBody(IPlayerHud playerHud) : BasePower(playerHud)
+{
+    public override int Id => 18;
+    public override string Name => "Iron Body";
+    
+    public override string Description => $"You can only be killed by headshots.";
+    
+    public override char ChatColor => ChatColors.LightPurple;
+
+    public override string HtmlColor => "#8B4513";
+
+    protected override void OnInitialize()
+    {
+        RegisterEventHandler<EventPlayerHurt>(OnPlayerHurt);
+    }
+
+    private HookResult OnPlayerHurt(EventPlayerHurt @event, GameEventInfo info)
+    {
+        var attacker = @event.Attacker;
+        var victim = @event.Userid;
+        if (@event.Hitgroup == (int)HitGroup_t.HITGROUP_HEAD)
+        {
+            return HookResult.Continue;
+        }
+
+        if (
+            !Ensure.Player(victim).IsValid().Check() || 
+            !Ensure.Player(attacker).IsValid().Check() ||
+            attacker == victim ||
+            !IsAssignedTo(victim!))
+        {
+            return HookResult.Continue;
+        }
+        
+        var playerPawn = victim!.PlayerPawn.Value;
+        var newHealth = playerPawn!.Health + @event.DmgHealth;
+
+        if (newHealth > 100)
+            newHealth = 100;
+
+        playerPawn.Health = newHealth;
+        return HookResult.Stop;
+    }
+}