recrownedgtk/RecrownedAthenaeum/Graphics/Render/Batch.cs

using System;
namespace RecrownedAthenaeum.Graphics.Render {
    public class Batch {
        private bool begun;
        public Batch() {
            //TODO Finish batch.
        }
        public void Begin() {
            if (begun) throw new InvalidOperationException("This batch has already been started.");
            begun = true;
        }
    }
}