MonoGame.Extended/source/MonoGame.Extended.Entities/Systems/DrawSystem.cs

using Microsoft.Xna.Framework;

namespace MonoGame.Extended.Entities.Systems
{
    public interface IDrawSystem : ISystem
    {
        void Draw(GameTime gameTime);
    }

    public abstract class DrawSystem : IDrawSystem
    {
        public virtual void Dispose() { }
        public virtual void Initialize(World world) { }
        public abstract void Draw(GameTime gameTime);
    }
}