java游戏-PrisonBreak1.0(越狱1.0版)

  这是我做的第一个游戏程序，挺高兴的，虽然很差，很差，不过我会慢慢修改的。最近一直在看《越狱》这部电视剧，这个游戏和这个名字还有点靠谱，所以给游戏取了这个名字。 这个程序是将《java程序设计导论》上的一个程序稍加修改而成的，改动也不大，能够实现的功能也就只有一个：就是将字符走到钥匙处，对话框就会出现一句："You get the key!",然后走到门处（在DOS对话框中）出现："Congratulation!You get out the prison!"

下面是游戏源程序：

 

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

public   class  game  extends  JFrame ... {
    private KeyboardPanel keyboardPanel=new KeyboardPanel();
    public game()...{
        getContentPane().add(keyboardPanel);
        keyboardPanel.setFocusable(true);        
    }
    public static void main(String args[])...{
        game frame=new game();
        frame.setTitle("PrisonBreak");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(700,500);
        frame.setVisible(true);
    }
}
class  KeyboardPanel  extends  JPanel  implements  KeyListener ... {
    boolean key=false;            //在此定义钥匙-“key”的数据类型
    private int x=200;
    private int y=200;
    private char keyChar='A';
    public KeyboardPanel()...{
        addKeyListener(this);
    }
    /** *//**
     * 当按键放松时执行的操作
     */
    public void keyReleased(KeyEvent e)...{
        /** *//**
         * 获得钥匙
         */
        if(x>100&&x<150&&y>100&&y<120)...{
            System.out.println("You get the key!");
            key=true;
        }
        /** *//**
         * 判断是否能够出去
         */
        if((x>500&&x<550)&&(y>400&&y<450))...{
            if(key==true)...{
                System.out.println("Congratulation!You get out the prison!");                
            }
            else...{
            System.out.println("The door is closed,you need the key!");
            }
        }
    }
    public void keyTyped(KeyEvent e)...{
    }
    public void keyPressed(KeyEvent e)...{
        switch(e.getKeyCode())...{
            case KeyEvent.VK_DOWN:y+=10;break;
            case KeyEvent.VK_UP: y-=10;break;
            case KeyEvent.VK_LEFT: x-=10;break;
            case KeyEvent.VK_RIGHT: x+=10;break;
            default:keyChar=e.getKeyChar();
        }
        repaint();
    }
    protected void paintComponent(Graphics g)...{
        super.paintComponent(g);
        g.setFont(new Font("TimesRoman",Font.PLAIN,24));
        g.drawString(String.valueOf(keyChar),x,y);
        g.setColor(Color.blue);
        g.fillRect(500, 400, 50, 50);
        g.setColor(Color.white);
        g.drawLine(525,400,525,450);
        g.setColor(Color.black);
        g.fillOval(100, 100, 20, 20);
        g.setColor(Color.black);
        int Poly_x[]=...{110,130,130,135,135,145,145,150,150,110};
        int Poly_y[]=...{105,105,95,95,105,105,95,95,115,115};
        g.fillPolygon(Poly_x, Poly_y, 10);
    }
}

 

下面是书上未被我改动前的源程序：

 

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

public   class  test  extends  JFrame ... {
    private KeyboardPanel keyboardPanel=new KeyboardPanel();
    public test()...{
        getContentPane().add(keyboardPanel);
        keyboardPanel.setFocusable(true);        
    }
    public static void main(String args[])...{
        test frame=new test();
        frame.setTitle("PrisonBreak");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(1000,500);
        frame.setVisible(true);
    }
}
class  KeyboardPanel  extends  JPanel  implements  KeyListener ... {
    boolean key=false;
    private int x=200;
    private int y=200;
    private char keyChar='A';
    public KeyboardPanel()...{
        addKeyListener(this);
    }
    public void keyReleased(KeyEvent e)...{
    }
    public void keyTyped(KeyEvent e)...{
    }
    public void keyPressed(KeyEvent e)...{
        switch(e.getKeyCode())...{
            case KeyEvent.VK_DOWN:y+=10;break;
            case KeyEvent.VK_UP: y-=10;break;
            case KeyEvent.VK_LEFT: x-=10;break;
            case KeyEvent.VK_RIGHT: x+=10;break;
            default:keyChar=e.getKeyChar();
        }
        repaint();
    }
    protected void paintComponent(Graphics g)...{
        super.paintComponent(g);
        g.setFont(new Font("TimesRoman",Font.PLAIN,24));
        g.drawString(String.valueOf(keyChar),x,y);
    }
}