public class Puyo {

    public int x, y, color;
    public Puyo(int c, int x2, int y2) {
        color = c;
        x = x2;
        y = y2;
      
  
  
    }
  
  
}

import javax.swing.*;
import java.awt.*;  

public class DemoTest extends JPanel {

    public static void main(String[] args) { {
    JFrame frame = new JFrame("Puyo Puyo");
    frame.setContentPane(new PuyoAnimation());  
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setSize(200,453);
    frame.setResizable(false);
    frame.setVisible(true);
  }
}
}

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



public class PuyoLogic extends JPanel {

   public static final int puyoEmpty=0;

  final int board_height = 12;
  final int board_width = 6;
  final int image_height= 32;
  final int image_width = 32;
  final int MAX_X = board_width*image_width;
  final int MAX_Y = board_height*image_height;
  private static final int DELTA_Y = 2;
  private static final int TIMER_DELAY = 20;


  Image images[];
  Puyo puyolist[][];
  Puyo current[];
  Puyo droppingBalls[];
  Timer pptimer;
  Random myRand= new Random();
  boolean keyRight,keyLeft,keyUp;

  
     public PuyoLogic() {
     super();
      
        puyolist = new Puyo[board_width][board_height];
      
        current = new Puyo[2];
        current[0] = new Puyo(myRand.nextInt(4), (board_width * image_width /2), 0);
        current[1] = new Puyo(myRand.nextInt(4), (board_width * image_width /2)+image_width, 0);
      
    // current[2] = new Puyo(myRand.nextInt(4), (board_width * image_width /2), 0);
   //     current[3] = new Puyo(myRand.nextInt(4), (board_width * image_width /2)+image_width, 0);
      
    
     images = new Image[4];
     images[0] = Toolkit.getDefaultToolkit().getImage("puyo_yellow.png");
     images[1] = Toolkit.getDefaultToolkit().getImage("puyo_blue.png");
     images[2] = Toolkit.getDefaultToolkit().getImage("puyo_green.png");
     images[3] = Toolkit.getDefaultToolkit().getImage("puyo_red.png");
    
     setFocusable(true);
     PuyoMove puyo_move = new PuyoMove(); // Make a new video game KeyListener
     addKeyListener(puyo_move);
     setBackground(Color.BLACK);
    

      pptimer = new Timer(TIMER_DELAY, new TimerAction());
      pptimer.start();
     }  
        
     public void setAnimation(boolean OnandOff){
        if (OnandOff) {
            pptimer.start();  
        } else {
            pptimer.stop();  
        }
     }
    
    
    public void NewBlock() {
    int newblock;
    int i,j;

    for(i=0; i<4; i++)
        for(j=0; j<4; j++)
        //puyolist[i][j] = new Puyo[2];

    current[0].x=board_width/2-2;
    current[0].y=0;

    }    
    
    
    public void puyoBoundsRight(Puyo[] current){
    if ((current[0].x + image_width <= MAX_X - image_width) && (current[1].x + image_width <= MAX_X - image_width)){
    current[0].x += image_width;
    current[1].x += image_width;
  }
}
    public void puyoBoundsLeft(Puyo[] current){
    if ((current[0].x - image_width >= 0) && (current[1].x - image_width >= 0)){
    current[0].x -= image_width;
    current[1].x -= image_width;
  }
}  



   private class PuyoMove implements KeyListener {
        
     public void keyTyped(KeyEvent k){}
     public void keyReleased(KeyEvent k){}
     public void keyPressed(KeyEvent k){
        
        switch (k.getKeyCode()){
        
         case KeyEvent.VK_LEFT:
             keyLeft = true;
             break;
            
         case KeyEvent.VK_RIGHT:
             keyRight = true;
             break;
       }
     }
   }
  

        public void paintComponent(Graphics g){
        super.paintComponent(g);  
          
        g.drawImage(images[current[0].color],current[0].x,current[0].y,this);
        g.drawImage(images[current[1].color],current[1].x,current[1].y,this);
      
       // g.drawImage(images[current[2].color],current[2].x,current[2].y,this);
        //g.drawImage(images[current[3].color],current[3].x,current[3].y,this);
      
      
       }
    
        class TimerAction implements ActionListener {
      
        public void actionPerformed(ActionEvent e) {
      
          if (keyLeft){
          
          
            puyoBoundsLeft(current);
            keyLeft = false;
          
        }
          else if (keyRight) {  
            
            puyoBoundsRight(current);
            keyRight = false;
          
          }
          if (current[0].y + image_height <= MAX_Y && current[1].y + image_height  <= MAX_Y)
          {
             current[0].y += DELTA_Y;
             current[1].y += DELTA_Y;
          }
        else {
              
               setAnimation(false);
        }
          
           repaint();    
          }
       }      
   }

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;


class PuyoAnimation extends JPanel {

   PuyoLogic pl;    
  
  public PuyoAnimation() {
  
       pl = new PuyoLogic();        
       JButton startButton = new JButton("Start");        
       JButton stopButton  = new JButton("Stop");
      
  
       startButton.addActionListener(new Start());
       stopButton.addActionListener(new Stop());
      
    
       JPanel button = new JPanel();
       button.setLayout(new FlowLayout());
        button.add(startButton);
        button.add(stopButton);
      
      
       this.setLayout(new BorderLayout());
       this.add(button, BorderLayout.SOUTH);
        this.add(pl,BorderLayout.CENTER);
    }
  
    class Start implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            pl.setAnimation(true);
        }
    }
  
  
    class Stop implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            pl.setAnimation(false);
        }
    }
}//endclass

while (true)
{
    UpdateGameObjects();
    RenderGameObjects();
    HandleEvents();
    PreformTiming();
}