NetBeans/Garten/src/garten/view/FlaecheWeg.java

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package garten.view;

import garten.model.Weg;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.util.ArrayList;
import javax.swing.JPanel;

/**
 *
 * @author Jan
 */
public class FlaecheWeg extends JPanel
{
  int[] randomwertex;
  int[] randomwertey;
  private BasicStroke pinsel;
  private ArrayList<Weg> weg;
  Color colorWeg;

  public FlaecheWeg()
  {
    weg = new ArrayList<>();
    randomwertex = new int[4];
    randomwertey = new int[4];
    pinsel = new BasicStroke(6f);
    colorWeg = new Color(190, 190, 190);
  }

  public void paintComponent(Graphics g)
  {
    super.paintComponent(g);
   
    Graphics2D g2 = (Graphics2D) g;
    g2.setColor(colorWeg);
    g2.setStroke(pinsel);
    for(Weg w : weg)
    {
      randomwertex = w.getKoordinaten();
      g2.drawLine(randomwertex[0], randomwertex[1], randomwertex[2], randomwertex[3]);
    }
  }

  public void zeichneWeg(ArrayList<Weg> tempWeg)
  {
    weg.addAll(0, tempWeg);
    repaint();
  }
}