import javax.swing.*;import java.awt.*;import java.awt.event.*;import java.io.*;import java.util.*;import javax.swing.border.*;public class Test extends JApplet{	private static final int UP=0,DOWN=1,LEFT=2,RIGHT=3;	private static final int WID=150,SP=10;	private int scores=0;	private static JLabel scoreLabel;	private boolean change,CheckMode=false,gameOverFlag=false,successFlag=false;	private int[] label={2,4,8,16,32,64,128};	private Color[] clo={			new Color(200,200,200),new Color(228,228,160),new Color(214,163,92),			new Color(234,124,72),new Color(240,84,77),new Color(255,68,53),new Color(200,200,64)	};	private Map cmap=new HashMap();	public static RectObject[][] rset=new RectObject[4][4];	public RectObject[][] list=new RectObject[4][4];	private My2048Panel myp;	private LinkedList saveList=new LinkedList();	private JButton goBackButton;		KeyListener kl=new KeyListener(){		public void keyPressed(KeyEvent e){			saveTheStep();			goBackButton.setVisible(true);			if(gameOverFlag==true){				return;			}			if(!aDirAble()){				gameOver();			}			int key=e.getKeyCode();			switch(key){			case KeyEvent.VK_UP:				change=false;				moveUp(true);				if(change==true){					getARandomRect();					//saveTheStep();				}				break;			case KeyEvent.VK_DOWN:				change=false;				moveDown(true);				if(change==true){					getARandomRect();					//saveTheStep();				}				break;			case KeyEvent.VK_LEFT:				change=false;				moveLeft(true);				if(change==true){					getARandomRect();					//saveTheStep();				}				break;			case KeyEvent.VK_RIGHT:				change=false;				moveRight(true);				if(change==true){					getARandomRect();					//saveTheStep();				}				break;			}			//saveTheStep();		}		public void keyTyped(KeyEvent e){}		public void keyReleased(KeyEvent e){}	};		class RectObject{		private int value;		public RectObject(){			value=0;		}		public RectObject(RectObject obj){			value=obj.value;		}		public boolean equals(Object inobj){			RectObject obj=(RectObject)inobj;			if(obj.value==value){				return true;			}			return false;		}	} 	class Point{		int x;		int y;		public Point(int i,int j){			x=i;			y=j;		}	}		class My2048Panel extends JPanel{		private int[] xindex={SP,2*SP+WID,3*SP+2*WID,4*SP+3*WID};		private int[] yindex={SP,2*SP+WID,3*SP+2*WID,4*SP+3*WID};				public void paintComponent(Graphics g){			//background			super.paintComponent(g);			for(int i=0;i
     
      -1;j--){				if(rset[i][j]!=null){					list[i][k--]=new RectObject(rset[i][j]);				}			}		}		for(int i=0;i<4 && flag;i++){			for(int j=3;j>0;j--){				if(list[i][j]!=null && list[i][j-1]!=null && list[i][j].value==list[i][j-1].value){					list[i][j].value*=2;					if(CheckMode==false){						int sum=Integer.parseInt(scoreLabel.getText());						sum+=list[i][j].value;						scoreLabel.setText(""+sum);					}					list[i][j-1]=null;					j--;				}			}		}				if(isChange()){			if(CheckMode==false){				copySet(rset,list);				repaint();				moveRight(false);			}			change=true;		}else{			repaint();		}	}	//moveup	public void moveUp(boolean flag){		clearList(list);		for(int j=0;j<4;j++){			int k=0;			for(int i=0;i<4;i++){				if(rset[i][j]!=null){					list[k++][j]=new RectObject(rset[i][j]);				}			}		}		for(int j=0;j<4 && flag;j++){			for(int i=0;i<3;i++){				if(list[i][j]!=null && list[i+1][j]!=null && list[i][j].value==list[i+1][j].value){					list[i][j].value*=2;					if(CheckMode==false){						int sum=Integer.parseInt(scoreLabel.getText());						sum+=list[i][j].value;						scoreLabel.setText(""+sum);					}					list[i+1][j]=null;					i++;				}			}		}				if(isChange()){			if(CheckMode==false){				copySet(rset,list);				repaint();				moveUp(false);			}			change=true;		}else{			repaint();		}	}	//movedown	public void moveDown(boolean flag){		clearList(list);		for(int j=0;j<4;j++){			int k=3;			for(int i=3;i>-1;i--){				if(rset[i][j]!=null){					list[k--][j]=new RectObject(rset[i][j]);				}			}		}		for(int j=0;j<4 && flag;j++){			for(int i=3;i>0;i--){				if(list[i][j]!=null && list[i-1][j]!=null && list[i][j].value==list[i-1][j].value){					list[i][j].value*=2;					if(CheckMode==false){						int sum=Integer.parseInt(scoreLabel.getText());						sum+=list[i][j].value;						scoreLabel.setText(""+sum);					}					list[i-1][j]=null;					i--;				}			}		}				if(isChange()){			if(CheckMode==false){				copySet(rset,list);				repaint();				moveDown(false);			}			change=true;		}else{			repaint();		}	}	//other functions	private void copySet(RectObject[][] dst, RectObject[][] src){		for(int i=0;i<4;i++){			for(int j=0;j<4;j++){				dst[i][j]=src[i][j];			}		}	}	//detect whether rset is different from list or not 	private boolean isChange(){		for(int i=0;i<4;i++){			for(int j=0;j<4;j++){				if(rset[i][j]!=null && list[i][j]!=null && !rset[i][j].equals(list[i][j])){					return true;				}				if(rset[i][j]!=null && list[i][j]==null){					return true;				}				if(rset[i][j]==null && list[i][j]!=null){					return true;				}			}		}		return false;	}	private void clearList(RectObject[][] s){		for(int i=0;i
      
       best){				file.writeInt(cur);			}			file.close();		} catch (FileNotFoundException e1) {			e1.printStackTrace();		}catch(IOException e2){			e2.printStackTrace();		}	}	public static void saveRecord(){		try{			RandomAccessFile file=new RandomAccessFile(new File("LASTRECORD"),"rw");			int score=Integer.parseInt(scoreLabel.getText());			file.writeInt(score);			for(int i=0;i<4;i++){				for(int j=0;j<4;j++){					if(rset[i][j]!=null){						file.writeInt(rset[i][j].value);					}else{						file.writeInt(0);					}				}			}		}catch(FileNotFoundException e){			e.printStackTrace();		}catch(IOException e){			e.printStackTrace();		}	}	public static void run(JApplet applet,int width,int height){		JFrame frame=new JFrame(title(applet));		frame.addWindowListener(new WindowAdapter(){			public void windowClosing(WindowEvent e){				refreshBest();				saveRecord();				//System.out.println("The score is "+scoreLabel.getText());			}		});		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);		frame.getContentPane().add(applet);		frame.setSize(width,height);		applet.init();		applet.start();		frame.setVisible(true);	}	public static void main(String[] args){		run(new Test(), 900, 800);	}}