import java.awt.*;
import java.awt.event.*;
public class MyGame{
	public static Frame f =new Frame();
	public static void main(String[] agrs){
		f.setSize(500, 400);
		f.setLocation((Toolkit.getDefaultToolkit().getScreenSize().width-f.getSize().width)/2, (Toolkit.getDefaultToolkit().getScreenSize().height-f.getSize().height)/2);
		f.setTitle("打字Game");
		f.setBackground(Color.black);
		
		Mypanel mp =new Mypanel();
		f.add(mp);
		
		Thread t =new Thread(mp);
		t.start();
		
		f.addKeyListener(mp);
		mp.addKeyListener(mp);
		mp.addMouseListener(mp);
		
		f.setVisible(true);
		f.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent e){
				System.exit(0);
			}
		});
	}
}
class Mypanel extends Panel implements Runnable,KeyListener,MouseListener{
	int x[]=new int[20];
	int y[]=new int[20];
	char c[]=new char[20];
	
	int score=1000;
	int level=1;
	boolean flag=true;
	
	public Mypanel(){
		for(int i=0;i<20;i++){
			x[i]=(int)(Math.random()*1020);
			y[i]=(int)(Math.random()*768)-700;
			c[i]=(char)(Math.random()*26+65);
		}
	}
	
	
	
	public void paint(Graphics g){
		g.setColor(Color.BLUE);
		g.setFont(new Font("宋体",Font.BOLD,30));

		if(flag==false){
		g.setColor(Color.GREEN);
		g.setFont(new Font("隶书",Font.BOLD,50));
		g.drawString("Over",MyGame.f.getSize().width/2,MyGame.f.getSize().height/2);
		}
		for(int i=0;i<20;i++){
			g.drawString(c[i]+"",x[i],y[i]);
		}
        g.drawString("得分:"+score,20,50);
	    
		g.drawString("等级:"+level,850,50);
		
		 
	}
	public void run(){
		while(flag){
			for(int i=0;i<20;i++){
				y[i]++;
			if(y[i]>768){
				y[i]=0;
				x[i]=(int)(Math.random()*(MyGame.f.getSize().width));
				c[i]=(char)(Math.random()*26+65);
				score-=100;
				if(score<=0){
					score=0; 
					flag=false;
					c=new char[20];
				}
			}
			}
			
			try {
				Thread.sleep(20-3*level);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			this.repaint();
		}
	}


	public void mouseClicked(MouseEvent e) {
		// TODO Auto-generated method stub
		System.out.println(e.getX());
		System.out.println(e.getY());
	}

	public void keyPressed(KeyEvent e) {
		int maxY=-1000;
		int index=-1;
		
		if(e.getKeyCode()>=e.VK_A&&e.getKeyCode()<=e.VK_Z){
			for(int i=0;i<20;i++){
				if(e.getKeyCode()==c[i]){
					if(y[i]>maxY){
						maxY=y[i];
						index=i;
					}
				}
			}
			if(index!=-1){
				y[index]=0;
				x[index]=(int)(Math.random()*(MyGame.f.getSize().width));
				c[index]=(char)(Math.random()*26+65);
				      score +=50;
				      if((score-500)/500>level){
				    	  level++;
				      }
			}
			else{
				score-=100;
				if(score<=0){
					score=0;
					flag=false;
					c=new char[20];
				}
				repaint();
			}
		}
	}

	public void keyReleased(KeyEvent arg0) {
		// TODO Auto-generated method stub
		
	}



	public void keyTyped(KeyEvent arg0) {
		// TODO Auto-generated method stub
		
	}

	public void mouseEntered(MouseEvent arg0) {
		// TODO Auto-generated method stub
		
	}



	public void mouseExited(MouseEvent arg0) {
		// TODO Auto-generated method stub
		
	}



	public void mousePressed(MouseEvent arg0) {
		// TODO Auto-generated method stub
		
	}



	public void mouseReleased(MouseEvent arg0) {
		// TODO Auto-generated method stub
		
	}
	
}