CrisisAtSwissStation.LaserObject.Draw C# (CSharp) Method

        public void Draw()
        {
            if (!(amDrawing || amErasing))
            {
                primitiveBatch.Begin(PrimitiveType.LineList);
                if (canIDraw && canIErase)
                {
                    primitiveBatch.AddVertex(startpoint, IN_SIGHT);
                    primitiveBatch.AddVertex(endpoint, IN_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y + 2), IN_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y + 2), IN_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y + 1), IN_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y + 1), IN_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y - 1), IN_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y - 1), IN_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y - 2), IN_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y - 2), IN_SIGHT);
                }
                else
                {
                    primitiveBatch.AddVertex(startpoint, OUT_SIGHT);
                    primitiveBatch.AddVertex(endpoint, OUT_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y + 2), OUT_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y + 2), OUT_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y + 1), OUT_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y + 1), OUT_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y - 1), OUT_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y - 1), OUT_SIGHT);

                    primitiveBatch.AddVertex(new Vector2(startpoint.X, startpoint.Y - 2), OUT_SIGHT);
                    primitiveBatch.AddVertex(new Vector2(endpoint.X, endpoint.Y - 2), OUT_SIGHT);
                }

                primitiveBatch.End();
            }
            else
            {
                GameEngine.Instance.SpriteBatch.Begin();
                Common.Utils.stretchForLaser(GameEngine.Instance.SpriteBatch, sectionTex, startpoint, endpoint, Color.White, sourceRect);
                GameEngine.Instance.SpriteBatch.End();
            }
        }