Polymorphism of systems

[enzi]

Currently I have an EquipmentEngineBase : ComponentSystem and

• EquipmentEngine : EquipmentEngineBase
• UnEquipmentEngine : EquipmentEngineBase

When I add these 2 systems the ECS throws an error in ComponentGroup.cs, the type has already been added to the dictionary.
A check if it already contains this type is sufficient and both systems work correctly. I just wonder if it has any negative side effects.

The full code:

    public ComponentGroup(EntityManager entityManager, params Type[] componentTypes) {
        _entityManager = entityManager;
        _groupMatcher = new GroupMatcher(componentTypes);

        foreach (Type type in componentTypes) {
            Type componentArrayType = typeof(ComponentArray<>);
            Type genericComponentArrayType = componentArrayType.MakeGenericType(type);
            
            if (!_components.ContainsKey(type)) // added
                _components.Add(type, (ComponentArray)Activator.CreateInstance(genericComponentArrayType));                
        }
    }

[Spy-Shifty]

How do you add your systems?

[enzi]

Nothing special
with
AddSystem<EquipmentEngine>(); AddSystem<UnEquipmentEngine>();

in public class MainCore : ECSController<UnityStandardSystemRoot, UnityEntityManager>