게임을 만들다가 생긴 문제..

        public void Draw(Graphics g, PointF pos, float size, float lightOffset)
        {
            PointF trans = new PointF(pos.X + 0.5f * size, pos.Y + (-slideCellCount + slideCell + slideRate + 0.5f) * size);
            float scale = size * (1 - shrinkRate);
            if (scale == 0) return;
 
            float thickness = OptionManager.BoxThickness;
 
            int cosine = (int)(255 * Math.Cos((light + lightOffset) * Math.PI / 180));
            int sine = (int)(255 * Math.Sin((light + lightOffset) * Math.PI / 180));
            SolidBrush[] brushTable = new SolidBrush[4];
            brushTable[0] = new SolidBrush(Color.FromArgb(Math.Abs(cosine), cosine >= 0 ? Color.White : Color.Black));
            brushTable[2] = new SolidBrush(Color.FromArgb(Math.Abs(cosine), cosine >= 0 ? Color.Black : Color.White));
            brushTable[1] = new SolidBrush(Color.FromArgb(Math.Abs(sine), sine >= 0 ? Color.White : Color.Black));
            brushTable[3] = new SolidBrush(Color.FromArgb(Math.Abs(sine), sine >= 0 ? Color.Black : Color.White));
 
            Matrix initialState = g.Transform;
            g.TranslateTransform(trans.X, trans.Y);
            g.ScaleTransform(scale, scale);
 
            g.FillRectangle(new SolidBrush(color), -0.5f, -0.5f, 1, 1);
 
            for (int i = 0; i < 4; i++)
            {
                if (!IsOpened(i * 2)) g.FillPolygon(brushTable[i], shadow[0]);
                else
                {
                    if (!IsOpened((i * 2 + 1) % 8) || !IsOpened((i * 2 + 2) % 8)) g.FillPolygon(brushTable[(i + 1) % 4], shadow[1]);
                    if (!IsOpened((i * 2 + 7) % 8) || !IsOpened((i * 2 + 6) % 8)) g.FillPolygon(brushTable[(i + 3) % 4], shadow[2]);
                    g.FillRectangle(new SolidBrush(color), -thickness / 2, -0.5f, thickness, 0.5f - thickness / 2);
                }
                g.RotateTransform(-90);
            }
            g.FillRectangle(new SolidBrush(color), -thickness / 2, -thickness / 2, thickness, thickness);
 
            g.Transform = initialState;
        }