Add attribute system with core stats and gameplay components

GameCore/Combat/ProjectileInitializationSystem.cs

@@ -0,0 +1,33 @@
+using GameCore.ECS;
+using GameCore.ECS.Interfaces;
+using GameCore.Events;
+
+namespace GameCore.Combat;
+
+public class ProjectileInitializationSystem : ISystem
+{
+    private readonly World _world;
+
+    public ProjectileInitializationSystem(World world)
+    {
+        _world = world;
+        _world.Subscribe<EntitySpawnedEvent>(OnEntitySpawned);
+    }
+
+    public void Update(World world, float deltaTime)
+    {
+    }
+
+    private void OnEntitySpawned(EntitySpawnedEvent e)
+    {
+        var projComp = _world.GetComponent<ProjectileComponent>(e.NewEntity);
+        if (projComp == null) return;
+
+        var ownerWeapon = _world.GetComponent<WeaponComponent>(e.Owner);
+        if (ownerWeapon != null)
+        {
+            projComp.Owner = e.Owner;
+            projComp.OnHitEffects = ownerWeapon.OnHitEffects;
+        }
+    }
+}