import java.awt.Color;
import java.awt.*;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Animation {

    JFrame frame;
    Figura figura;

    private int oneX = 200;
    private int oneY = 200;

    private int dX = 1;
    private int dY = 1;

    public static void main(String[] args)
    {
        new Animation().go();
    }

    private void go()
    {
        frame = new JFrame("Test");
        figura = new Figura();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setResizable(false);
        frame.setSize(1900, 1000);
        frame.add(figura);
        frame.setVisible(true);
        moveIt();

    }

    class Figura extends JPanel
    {
        public void paintComponent(Graphics g)
        {

            int xPoints[] = new int [5];

            int yPoints[] = new int[5];
            xPoints[0] = oneX;
            yPoints[0] = oneY;

            xPoints[1] = oneX + 25;
            yPoints[1] = oneY - 25;
            xPoints[2] = oneX + 25;
            yPoints[2] = oneY  ;
            xPoints[3] = oneX + 50;
            yPoints[3] = oneY;
            xPoints[4] = oneX + 25;
            yPoints[4] = oneY + 25;

            g.setColor(Color.orange);
            g.fillPolygon(xPoints, yPoints, xPoints.length);
        }
    }

    private void moveIt()
    {
        while (true)
        {

            oneX +=dX;
            if ( oneX + dX < 210) {
                oneY = (int) (200 * Math.cos(Math.toRadians((oneX))))+ 200;
            }


            //TODO change magical number
            if (oneX + dX < 0 || oneX + dX > 210) {
                dX = -dX;
            }
            try
            {
                Thread.sleep(1);
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
            frame.repaint();
        }
    }

    //тут можна дописати новий метод
}