SubsystemNames.cs

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using GameEntitySystem;
 
namespace Game {
    public class SubsystemNames : Subsystem {
        public Dictionary<string, ComponentName> m_componentsByName = [];
 
        public Component FindComponentByName(string name, Type componentType, string componentName) =>
            FindEntityByName(name)?.FindComponent(componentType, componentName, false);
 
        public T FindComponentByName<T>(string name, string componentName) where T : Component {
            Entity entity = FindEntityByName(name);
            if (entity == null) {
                return null;
            }
            return entity.FindComponent<T>(componentName, false);
        }
 
        public Entity FindEntityByName(string name) {
            m_componentsByName.TryGetValue(name, out ComponentName value);
            return value?.Entity;
        }
 
        public static string GetEntityName(Entity entity) {
            ComponentName componentName = entity.FindComponent<ComponentName>();
            if (componentName != null) {
                return componentName.Name;
            }
            return string.Empty;
        }
 
        public override void OnEntityAdded(Entity entity) {
            foreach (ComponentName item in entity.FindComponents<ComponentName>()) {
                m_componentsByName.Add(item.Name, item);
            }
        }
 
        public override void OnEntityRemoved(Entity entity) {
            foreach (ComponentName item in entity.FindComponents<ComponentName>()) {
                m_componentsByName.Remove(item.Name);
            }
        }
    }
}