public static void SmoothMove(int X, int Y, int moveTime)
        {
            if (moveTime <= 0) moveTime = 500; else moveTime *= 1000;
            if (moveTime > 30000) moveTime = 30000;
            double rateDelay = 1000 / 60; // 1 sec div by framerate (60)
            int stepsCount = (int)(moveTime / rateDelay);
            double pos = 0;
            int posX = 0, posY = 0;
            int oldX = 0, oldY = 0;
            for (int i = 1; i <= stepsCount; i++)
            {
                oldX = posX;
                oldY = posY;
                pos = -(Math.Cos(Math.PI * i / stepsCount) - 1) / 2;
                posX = (int)(X * pos);
                posY = (int)(Y * pos);
                Move(posX - oldX, posY - oldY);
                Thread.Sleep((int)rateDelay);
            }
        }