Labor3

package de.marvin.oopLabor3;

public class Main {

    public static void main(String[] args)
    {
        @SuppressWarnings("unused")
        MyFrame meinFenster = new MyFrame();
    }
}
////////////////////////////////////////////

package de.marvin.oopLabor3;

import java.awt.GridLayout;
import java.util.Random;
import javax.swing.JFrame;

public class MyFrame
{
    private int fensterGroesse = 600;
    private int randomAuswahl;
    private int gridX = 8;
    private int gridY = 8;

    MyFrame()
    {
        Random r = new Random();
        JFrame f = new JFrame("Laboraufgabe 3");
        f.setSize(fensterGroesse,fensterGroesse);
        f.setLocationRelativeTo(null);
        f.setLayout(new GridLayout(gridX,gridY));
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setResizable(false);

        GeometricObject[] geoObject = new GeometricObject[gridX*gridY];

        for(int i = 0; i < (gridX*gridY);i++)
        {
            randomAuswahl = r.nextInt(5);
            switch(randomAuswahl)
            {
                case 0:
                    geoObject[i] = new Square();
                    break;
                case 1:
                    geoObject[i] = new Circle();
                    break;
                case 2:
                    geoObject[i] = new Triangle();
                    break;
                case 3:
                    geoObject[i] = new Pacman();
                    break;
                case 4:
                    geoObject[i] = new MySpecialShape();
                    break;
            }
        }
        for(int i = 0; i < geoObject.length; i++)
        {
            f.add(geoObject[i]);
        }
        f.setVisible(true);
    }
}
///////////////////////////////////////////
package de.marvin.oopLabor3;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Point;
import java.util.Random;

import javax.swing.JPanel;

public abstract class GeometricObject extends JPanel
{
    private static final long serialVersionUID = 1L;

    private final int MAXCOLOR = 240;
    private final int MINCOLOR = 1;
    private final int RedBorderSize = 40;
    private final int MINRANDOM = 1;
    private final int MAXRANDOM = 4;

    abstract void specialPaint(Graphics g, int StartX, int StartY, int size1,int size2);

    protected int randInt(int min, int max)
    {
        Random rand = new Random();
        int randomNum = rand.nextInt((max - min) + 1) + min;

        return randomNum;
    }

    @Override
    protected void paintComponent(Graphics g)
    {
        int FillViereck = randInt(MINRANDOM,MAXRANDOM); //Muss gleiche größe haben, deshalb eine Variable

        final Dimension dBorder = getSize();  // Bekomme die höhe und weite als Dimension Object back
        final Dimension dFill = new Dimension(dBorder.width /FillViereck, dBorder.height /FillViereck); // Erstelle selbst ein neues Object
        final Point p0Fill = new Point((dBorder.width - dFill.width) / 2,(dBorder.height - dFill.height) / 2); // X u Y Wert
        this.setColor(g);
        specialPaint(g, p0Fill.x, p0Fill.y, dFill.width,dFill.height);
        kastenErstellen(g);
    }

    private void kastenErstellen(Graphics g)
    {
        g.setColor(Color.RED); //Vorgegeben
        g.drawRect(getWidth()/RedBorderSize,getHeight()/RedBorderSize,getWidth()-2,getHeight()-2); // Sonst sind die L
    }

    protected void setColor(Graphics g)
    {
        g.setColor(new Color(randInt(MINCOLOR,MAXCOLOR),randInt(MINCOLOR,MAXCOLOR),randInt(MINCOLOR,MAXCOLOR)));
    }
}
////////////////////////////////////////////////////
package de.marvin.oopLabor3;

import java.awt.Graphics;

public class Circle extends GeometricObject {

    private static final long serialVersionUID = 1L;

    @Override
    void specialPaint(Graphics g, int StartX, int StartY, int size1, int size2)
    {
        g.fillOval(StartX, StartY, size1,size2);
    }
}
/////////////////////////////////////////////////
package de.marvin.oopLabor3;

import java.awt.Graphics;

public class MySpecialShape extends GeometricObject
{
    private static final long serialVersionUID = 1L;
    private final int Startpunkte = 15;

    @Override
    void specialPaint(Graphics g, int StartX, int StartY, int size1, int size2)
    {
    g.fillOval(StartX, StartY, size1,size2);
        g.fillOval(StartX-Startpunkte, StartY-Startpunkte, size1,size2);
        g.fillOval(StartX+Startpunkte, StartY-Startpunkte, size1,size2);
        g.fillOval(StartX+Startpunkte, StartY+Startpunkte, size1,size2);
        g.fillOval(StartX-Startpunkte, StartY+Startpunkte, size1,size2);
    }
}
////////////////////////////////////////////////
package de.marvin.oopLabor3;

import java.awt.Graphics;

public class Pacman extends GeometricObject {

    private static final long serialVersionUID = 1L;
    final int pacmanMaul = 30;
    final int pacmanMaul2 = 310;

    @Override
    void specialPaint(Graphics g, int StartX, int StartY, int size1, int size2)
    {
        g.fillArc(StartX, StartY, size1,size2, pacmanMaul, pacmanMaul2);
    }
}
////////////////////////////////////////////////////////
package de.marvin.oopLabor3;

import java.awt.Graphics;

public class Square extends GeometricObject
{
    private static final long serialVersionUID = 1L;

    @Override
    void specialPaint(Graphics g, int StartX, int StartY, int size1, int size2)
    {
        g.fillRect(StartX, StartY, size1, size2);
    }
}
//////////////////////////////////////////////////
package de.marvin.oopLabor3;

import java.awt.Graphics;

public class Triangle extends GeometricObject
{
    private static final long serialVersionUID = 1L;
    final int haelfte = 2;

    @Override
    void specialPaint(Graphics g, int StartX, int StartY, int size1, int size2)
    {
        int[] xWerte = { StartX + (size1 / haelfte), StartX + (size1 - size1),StartX + (size1) }; // Erster Wert ist die Mitte des Objects
        int[] yWerte = { StartY + (size2 - size2), StartY + (size2),StartY + (size2) };
        g.fillPolygon(xWerte, yWerte, xWerte.length);
    }
}