TicTacToe

import java.awt.*;
import java.awt.event.*;
import java.util.Random;;

public class TicTacToe extends Frame {

  int stones[][] = new int[9][3];

  public TicTacToe(String title) {
    super(title);
    addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent evt) { dispose(); }
    });
    addMouseListener(new MyMouseListener());
    int frameWidth = 300;
    int frameHeight = 300;
    setSize(frameWidth, frameHeight);
    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
    int x = (d.width - getSize().width) / 2;
    int y = (d.height - getSize().height) / 2;
    setLocation(x, y);
    setResizable(true);
    setVisible(true);
  }



  int fieldSize = 80;
  int fieldOffsetX = 30;
  int fieldOffsetY = 40;

  int clickedField = -1;
  int player = 1;

  public void paint(Graphics g){
    if (clickedField > -1 && stones[clickedField][2] == 0) {
      stones[clickedField][2] = player;
      if (player == 1) {
        player = 2;
      }
      else{
        player = 1;
      }
      clickedField = -1;
    }
    paintPlanes(g);
    paintStones(g);
  }

  public void paintPlanes(Graphics g){
    for (int x = 0; x < 3;x++ ) {
      for (int y = 0; y < 3;y++ ) {
        int xPos = x*fieldSize+fieldOffsetX;
        int yPos = y*fieldSize+fieldOffsetY;
        g.drawRect(xPos,yPos,fieldSize,fieldSize);
      }
    }
  }

  public void paintStones(Graphics g){
    for (int[] i : stones ) {
      int x = i[0]*fieldSize+fieldOffsetX;
      int y = i[1]*fieldSize+fieldOffsetY;
      int t = i[2];
      switch (t) {
        case  1:
        g.drawOval(x,y,fieldSize,fieldSize);
        break;
        case  2:
        g.drawLine(x,y,x+fieldSize,y+fieldSize);
        g.drawLine(x,y+fieldSize,x+fieldSize,y);
      }
    }
  }


  public class MyMouseListener extends MouseAdapter{

    public void mouseClicked(MouseEvent e){
      int mX  = e.getX();
      int mY  = e.getY();
      int counter = 0;
      for (int x = 0; x < 3;x++ ) {
        for (int y = 0; y < 3;y++ ) {
          int xPos = x*fieldSize+fieldOffsetX;
          int yPos = y*fieldSize+fieldOffsetY;
          if (mX > xPos && mY > xPos && mX < xPos+fieldSize && mY < yPos+fieldSize) {
            clickedField = counter;
          }
          counter++;
        }
      }
      System.out.println(clickedField);
      repaint();
    }

  }

  /* public void fillRandom(){
  Random r = new Random();
  int counter = 0;
  for (int x = 0; x < 3;x++ ) {
  for (int y = 0; y < 3;y++ ) {
  stones[counter][0] = x;
  stones[counter][1] = y;
  stones[counter][2] = (int)(r.nextDouble()*3);
  counter++;
  }
  }

  repaint();
  } */

  // Anfang Methoden

  public static void main(String[] args) {
    new TicTacToe("TicTacToe");
  } // end of main

  // Ende Methoden
} // end of class TicTacToe