using System;
using System.Collections.Generic;
using System.Text;

namespace Encompass
{
    public abstract class Renderer
    {
        private EntityManager entityManager;
        private ComponentManager componentManager;

        internal void AssignEntityManager(EntityManager entityManager)
        {
            this.entityManager = entityManager;
        }

        internal void AssignComponentManager(ComponentManager componentManager)
        {
            this.componentManager = componentManager;
        }

        protected Entity GetEntity(Guid entityID)
        {
            return entityManager.GetEntity(entityID);
        }

        protected IEnumerable<KeyValuePair<Guid, TComponent>> ReadComponents<TComponent>() where TComponent : struct, IComponent
        {
            return componentManager.GetActiveComponentsByType<TComponent>();
        }

        protected KeyValuePair<Guid, TComponent> ReadComponent<TComponent>() where TComponent : struct, IComponent
        {
            return componentManager.GetActiveComponentByType<TComponent>();
        }
    }
}