Java笔记5(java绘图原理、事件处理机制、监听器、坦克大战) -

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Java笔记5(java绘图原理、事件处理机制、监听器、坦克大战)

博客分类：
Java
java绘图原理Demo9_1.java 

/* 

* 功能：java绘图原理 

*/ 

 

package com.test1; 

import java.awt.*; 

import javax.swing.*; 

 

public class Demo9_1 extends JFrame{ 

 

/** 

* @param args 

*/ 

public static void main(String[] args) { 

Demo9_1 demo9_1=new Demo9_1(); 

 

} 

 

public Demo9_1() 

{ 

MyPanel1 mp=new MyPanel1(); 

 

this.add(mp); 

this.setSize(400,500); 

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

this.setVisible(true); 

} 

 

} 

 

//定义一个MyPanel(自定义的面板，用于绘图和现实绘图的区域) 

class MyPanel1 extends JPanel 

{ 

//覆盖JPanel的paint方法 

public void paint(Graphics g) //Graphics是绘图的重要类，画笔类 

{//paint(Graphic g)绘制组件的外观，repaint()刷新组件的外观 

//1.调用父类函数完成初始化 

//这句话，不能少 

super.paint(g); 

System.out.println("paint被调用"); 

//以下情况paint()会被调用 

//1.窗口最小化，再最大化。 

//2.窗口的大小发生变化 

//3.repaint函数被调用 

 

//先画出一个圆 

g.drawOval(10, 10, 30, 30); 

 

//画出直线 

g.drawLine(80, 10, 40, 40); 

 

//画出矩形边框 

g.drawRect(10, 50, 40, 60); 

 

//设置颜色 

g.setColor(Color.blue); 

//填充矩形 

g.fillRect(10,50,40,60); 

 

g.setColor(Color.red); 

g.fillRect(70,70,40,40);//填充矩形 

g.fillOval(70, 10, 60, 40);//填充椭圆 

 

//在面板上画出图片,记住这种在面板上画图像的方法 

Image im=Toolkit.getDefaultToolkit().getImage 

(Panel.class.getResource("/刘亦菲2.jpg")); 

//实现 

g.drawImage(im, 140, 10, 200, 300, this); 

 

//画出文字 

g.setColor(Color.red);//设置颜色 

g.setFont(new Font("微软简行楷",Font.BOLD,30));//设置字体 

g.drawString("祖国万岁", 5, 150);//画文字 

 

//画孤形 

g.drawArc(10, 180, 120, 300, 50, 100); 

} 

} 

 

坦克大战v1.0_Demo9_2 

/* 

* 功能：坦克大战v1.0 

* 1.画出坦克 

*/ 

 

package com.test2; 

import java.awt.*; 

import javax.swing.*; 

 

public class MyTankGame1 extends JFrame{ 

 

MyPanel mp=null; 

public MyTankGame1() 

{ 

mp=new MyPanel(); 

 

this.add(mp); 

this.setSize(400,300); 

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

this.setVisible(true); 

} 

 

public static void main(String[] args) { 

MyTankGame1 mtg=new MyTankGame1(); 

} 

 

} 

 

//我的面板 

class MyPanel extends JPanel 

{ 

//定义一个我的坦克 

Hero hero=null; 

 

//构造函数 

public MyPanel() 

{ 

hero=new Hero(10,10); 

} 

 

//重写paint函数 

public void paint(Graphics g) 

{ 

super.paint(g); //这句不能少 

g.fillRect(0,0,400,300);//设置游戏面板背景 

this.drawTank(hero.getX(), hero.getY(), g, 0, 1); 

} 

 

//画出坦克的函数 

public void drawTank(int x,int y,Graphics g,int direct,int type) 

{ 

//判断坦克的类型 

switch(type) 

{ 

case 0: 

g.setColor(Color.cyan); 

break; 

case 1: 

g.setColor(Color.yellow); 

break; 

} 

 

//判断方向 

switch(direct) 

{ 

case 0: //向上 

//画出我的坦克(到时封装成一个函数) 

//1.画出左边的矩形 

g.fill3DRect(x, y, 5, 30,false); 

//2.画出右边的矩形 

g.fill3DRect(x+15, y, 5, 30,false); 

 

//3.画出中间矩形 

g.fill3DRect(x+5, y+5, 10, 20,false); 

 

//4.画出中间的圆形 

g.fillOval(x+5, y+10, 10, 10); 

 

//5.画出线 

g.drawLine(x+10, y+15, x+10, y); 

 

//画齿轮 

g.setColor(Color.darkGray); 

g.drawLine(x+1, y+2, x+4, y+2); 

g.drawLine(x+1, y+5, x+4, y+5); 

g.drawLine(x+1, y+8, x+4, y+8); 

g.drawLine(x+1, y+11, x+4, y+11); 

g.drawLine(x+1, y+14, x+4, y+14); 

g.drawLine(x+1, y+17, x+4, y+17); 

g.drawLine(x+1, y+20, x+4, y+20); 

g.drawLine(x+1, y+23, x+4, y+23); 

g.drawLine(x+1, y+27, x+4, y+27); 

 

g.drawLine(x+16, y+2, x+19, y+2); 

g.drawLine(x+16, y+5, x+19, y+5); 

g.drawLine(x+16, y+8, x+19, y+8); 

g.drawLine(x+16, y+11, x+19, y+11); 

g.drawLine(x+16, y+14, x+19, y+14); 

g.drawLine(x+16, y+17, x+19, y+17); 

g.drawLine(x+16, y+20, x+19, y+20); 

g.drawLine(x+16, y+23, x+19, y+23); 

g.drawLine(x+16, y+27, x+19, y+27); 

break; 

} 

} 

} 

 

 

//坦克类 

class Tank 

{ 

//表示坦克的横坐标 

int x=0; 

//坦克纵坐标 

int y=0; 

 

public int getX() { 

return x; 

} 

 

public void setX(int x) { 

this.x = x; 

} 

 

public int getY() { 

return y; 

} 

 

public void setY(int y) { 

this.y = y; 

} 

 

public Tank(int x,int y) 

{ 

this.x=x; 

this.y=y; 

} 

 

} 

 

//我的坦克 

class Hero extends Tank 

{ 

public Hero(int x,int y) 

{ 

super(x,y);//用父类的构造函数初始化子类的成员变量 

} 

} 

 

java事件处理机制_Demo9_3.java 

/* 

* 功能：java事件处理机制 

* 

*/ 

 

/* 

* 1.一个类要实现监听的步骤 

* a.实现相应的接口[KeyListener,MouseListener,ActionListener,WindowListener,] 

* b.把接口的处理方法根据需要重新编写（override） 

* c.在事件源注册监听 

* d.事件传递是靠事件对象 

*/ 

package com.test3; 

import java.awt.*; 

import javax.swing.*; 

import java.awt.event.*; 

 

public class Demo9_3 extends JFrame implements ActionListener //让窗体对象实现对事件的监听 

{ 

 

//定义一个panel 

JPanel mp=null; 

JButton jb1=null; 

JButton jb2=null; 

 

public static void main(String[] args) { 

Demo9_3 demo9_3=new Demo9_3(); 

} 

 

public Demo9_3() 

{ 

//初始化一个面板和两个按钮 

mp=new JPanel(); 

jb1=new JButton("黑色"); 

jb2=new JButton("红色"); 

 

Cat myCat1=new Cat(); 

 

//注册监听 

jb1.addActionListener(this);//让窗体对象监听 

jb1.addActionListener(myCat1);//让猫对象监听 

//指定action命令 

jb1.setActionCommand("blackbtn"); 

 

jb2.addActionListener(this);//添加事件监听，让窗体对象监听 

jb2.addActionListener(myCat1);//让猫对象监听 

jb2.setActionCommand("redbtn"); 

 

this.add(jb1,BorderLayout.NORTH);//将按钮jb1添加到窗体北边 

mp.setBackground(Color.black);//设置面板颜色 

this.add(mp); 

this.add(jb2,BorderLayout.SOUTH);//将按钮jb2添加到窗体南边 

 

this.setSize(200,150); //设置窗体大小 

this.setLocation(400,300); 

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

this.setVisible(true); 

 

} 

 

//对事件处理的方法 

@Override 

public void actionPerformed(ActionEvent e) { 

System.out.println("OK"); 

 

//判断是哪个按钮被点击 

if(e.getActionCommand().equals("blackbtn")) 

{ 

System.out.println("你点击黑色按钮了！"); 

mp.setBackground(Color.BLACK); 

} 

else if(e.getActionCommand().equals("redbtn")) 

{ 

System.out.println("你点击红色按钮了！"); 

mp.setBackground(Color.RED); 

} 

else 

{ 

System.out.println("不知道！"); 

} 

} 

} 

 

//任何一个类，只要他实现了相应的接口，就可以去临界听某个事件源 

class Cat implements ActionListener //让猫也现实对事件的监听 

{ 

@Override 

public void actionPerformed(ActionEvent e) { 

if(e.getActionCommand().equals("blackbtn")) 

{ 

System.out.println("猫监听到你按下了黑色按钮！"); 

} 

else if(e.getActionCommand().equals("redbtn")) 

{ 

System.out.println("猫监听到你按下了红色按钮！"); 

} 

else 

{ 

System.out.println("猫没有监听到按钮消息！"); 

} 

} 

} 

 

Demo9_4.java 

/* 

* 功能：加深对事件处理机制的理解 

* 1.通过上下左右键，来控制一个小球的位置 

*/ 

 

package com.test4; 

import java.awt.*; 

import java.awt.event.*; 

 

import javax.swing.*; 

 

import java.awt.event.KeyListener; 

 

public class Demo9_4 extends JFrame{ 

 

/** 

* @param args 

*/ 

public static void main(String[] args) { 

Demo9_4 demo9_4=new Demo9_4(); 

 

} 

 

//构造函数 

public Demo9_4() 

{ 

MyPanel mp=new MyPanel(); 

 

//mp加入到JFrame 

this.add(mp); 

 

//实现监听 

this.addKeyListener(mp); 

 

this.setSize(400,300); 

this.setLocation(300,200); 

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

this.setVisible(true); 

} 

} 

 

//定义自己的面板 

class MyPanel extends JPanel implements KeyListener 

{ 

int x=10; 

int y=10; 

public void paint(Graphics g) 

{ 

super.paint(g); 

g.fillOval(x, y, 20, 20); 

} 

 

@Override 

public void keyPressed(KeyEvent e) //某一个键被压下 

{ 

//System.out.println("键被按下！"+(char)e.getKeyCode()); 

if(e.getKeyCode()==KeyEvent.VK_DOWN) 

{ 

if(y<248) 

y+=2; 

else 

return; 

} 

else if(e.getKeyCode()==KeyEvent.VK_UP) 

{ 

if(y>0) 

y-=2; 

else 

return; 

} 

else if(e.getKeyCode()==KeyEvent.VK_LEFT) 

{ 

if(x>0) 

x-=2; 

else 

return; 

} 

else if(e.getKeyCode()==KeyEvent.VK_RIGHT) 

{ 

if(x<368) 

x+=2; 

else 

return ; 

} 

else 

return; 

//调用repaint(),重绘窗口 

this.repaint(); 

} 

 

@Override 

public void keyReleased(KeyEvent e) //某一个键被释放 

{ 

System.out.println("键被释放！"); 

 

} 

 

@Override 

public void keyTyped(KeyEvent e) //键的值被输出 

{ 

System.out.println("被按下的键是："+(char)e.getKeyChar()); 

 

} 

} 

 

监听器Demo9_5.java 

/* 

* 功能：让一个监听器监听多个不同的事件 

*/ 

 

package com.test5; 

import java.awt.*; 

import java.awt.event.*; 

 

import javax.swing.*; 

 

public class Demo9_5 extends JFrame{ 

 

MyPanel mp=null; 

public static void main(String[] args) { 

Demo9_5 demo9_5=new Demo9_5(); 

 

} 

//构造函数 

public Demo9_5() 

{ 

mp=new MyPanel(); 

this.add(mp); 

 

//注册监听 

this.addMouseListener(mp); 

this.addKeyListener(mp); 

this.addMouseMotionListener(mp); 

this.addWindowListener(mp); 

 

this.setSize(400,300); 

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

this.setVisible(true); 

} 

} 

 

//1.让MyPanel知道鼠标按下的消息，并且知道点击的位置(x,y) 

//2.让MyPanel知道哪个键按下 

//3.让MyPanel知道鼠标移动、拖拽 

//4.让MyPanel知道窗口的变化(关闭,最小化,最大化) 

 

class MyPanel extends JPanel implements 

MouseListener,KeyListener,MouseMotionListener,WindowListener 

{ 

public void paint(Graphics g) 

{ 

super.paint(g); 

} 

 

@Override 

public void mouseClicked(MouseEvent e) //鼠标点击 

{ 

System.out.println("鼠标点击了 x="+e.getX()+" y="+e.getY()); 

 

} 

 

@Override 

public void mouseEntered(MouseEvent e) //鼠标移入 

{ 

System.out.println("鼠标来了"); 

 

} 

 

@Override 

public void mouseExited(MouseEvent e) //鼠标离开MyPanel 

{ 

System.out.println("鼠标走了"); 

 

} 

 

@Override 

public void mousePressed(MouseEvent e) //鼠标按下 

{ 

// TODO Auto-generated method stub 

 

} 

 

@Override 

public void mouseReleased(MouseEvent e) //鼠标释放 

{ 

// TODO Auto-generated method stub 

 

} 

 

@Override 

public void keyPressed(KeyEvent e) //键按下 

{ 

// TODO Auto-generated method stub 

 

} 

 

@Override 

public void keyReleased(KeyEvent e) //键松开 

{ 

System.out.println("按下的键是："+e.getKeyChar()); 

 

} 

 

@Override 

public void keyTyped(KeyEvent e) //打印键的值 

{ 

// TODO Auto-generated method stub 

 

} 

 

@Override 

public void mouseDragged(MouseEvent e) //鼠标拖拽 

{ 

// TODO Auto-generated method stub 

 

} 

 

@Override 

public void mouseMoved(MouseEvent e) //鼠标移动 

{ 

System.out.println("鼠标当前坐标是：x="+e.getX()+"y="+e.getY()); 

 

} 

 

@Override 

public void windowActivated(WindowEvent e) //窗口变为活动窗口 

{ 

System.out.println("windowActivated"); 

 

} 

 

@Override 

public void windowClosed(WindowEvent e) //窗口关闭了 

{ 

System.out.println("windowClosed"); 

 

} 

 

@Override 

public void windowClosing(WindowEvent e) //窗口正在关闭 

{ 

System.out.println("windowClosing"); 

 

} 

 

@Override 

public void windowDeactivated(WindowEvent e) //窗口变为非活动窗口 

{ 

System.out.println("windowDeactivated"); 

 

} 

 

@Override 

public void windowDeiconified(WindowEvent e) //窗口变到最大图标区域 

{ 

System.out.println("windowDeiconified"); 

 

} 

 

@Override 

public void windowIconified(WindowEvent e) //窗口变到最小图标区域 

{ 

System.out.println("windowIconified"); 

 

} 

 

@Override 

public void windowOpened(WindowEvent e) //窗口打开了 

{ 

System.out.println("windowOpened"); 

 

} 

 

} 

 

坦克大战v2.0_ MyTankGame2.java 

/* 

* 功能：坦克大战v2.0 

* 1.画出坦克 

* 2.我的坦克可以上下左右移动 

*/ 

 

package com.test6; 

import java.awt.*; 

import javax.swing.*; 

 

import java.awt.event.*; 

import java.util.*; 

 

public class MyTankGame2 extends JFrame{ 

 

MyPanel mp=null; 

 

//构造函数 

public MyTankGame2() 

{ 

mp=new MyPanel(); 

this.add(mp); 

 

//注册监听 

this.addKeyListener(mp); 

 

this.setSize(400,300); 

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

this.setVisible(true); 

} 

 

public static void main(String[] args) { 

MyTankGame2 mtg=new MyTankGame2(); 

} 

 

} 

 

//我的面板 

class MyPanel extends JPanel implements KeyListener 

{ 

//定义一个我的坦克 

Hero hero=null; 

 

//定义敌人的坦克组 

Vector<EnemyTank>ets=new Vector<EnemyTank>(); 

 

int enSize=3; 

 

//构造函数 

public MyPanel() 

{ 

hero=new Hero(100,200); 

 

//初始化敌人的坦克 

for(int i=0;i<enSize;i++) 

{ 

//创建一个辆敌人的坦克对象 

EnemyTank et=new EnemyTank((i+1)*50,0); 

et.setColor(0);//设置颜色 

et.setDirect(2); 

//加入 

ets.add(et); 

 

} 

} 

 

//重写paint函数 

public void paint(Graphics g) 

{ 

super.paint(g); //这句不能少 

g.fillRect(0,0,400,300);//设置游戏面板背景 

 

//画出自己的坦克 

this.drawTank(hero.getX(), hero.getY(), g, this.hero.direct, 1); 

 

//画出敌人的坦克 

for(int i=0;i<ets.size();i++) 

{ 

this.drawTank(ets.get(i).getX(), ets.get(i).getY(), g, ets.get(i).getDirect(), 0); 

} 

} 

 

//画出坦克的函数(扩展) 

public void drawTank(int x,int y,Graphics g,int direct,int type) 

{ 

//判断坦克的类型 

switch(type) 

{ 

case 0: 

g.setColor(Color.cyan); 

break; 

case 1: 

g.setColor(Color.yellow); 

break; 

} 

 

//判断方向 

switch(direct) 

{ 

case 0: //向右 

//画出上面的矩形 

g.fill3DRect(x, y, 30, 5, false); 

//画出下面的矩形 

g.fill3DRect(x, y+15, 30, 5, false); 

//画出中间的矩形 

g.fill3DRect(x+5, y+5, 20, 10, false); 

//画出圆形 

g.fillOval(x+10, y+5, 10, 10); 

//画出线 

g.drawLine(x+15, y+10, x+30, y+10); 

//画齿轮 

g.setColor(Color.darkGray); 

g.drawLine(x+2, y+1, x+2, y+4); 

g.drawLine(x+5, y+1, x+5, y+4); 

g.drawLine(x+8, y+1, x+8, y+4); 

g.drawLine(x+11, y+1, x+11, y+4); 

g.drawLine(x+14, y+1, x+14, y+4); 

g.drawLine(x+17, y+1, x+17, y+4); 

g.drawLine(x+20, y+1, x+20, y+4); 

g.drawLine(x+23, y+1, x+23, y+4); 

g.drawLine(x+26, y+1, x+26, y+4); 

 

g.drawLine(x+2, y+16, x+2, y+19); 

g.drawLine(x+5, y+16, x+5, y+19); 

g.drawLine(x+8, y+16, x+8, y+19); 

g.drawLine(x+11, y+16, x+11, y+19); 

g.drawLine(x+14, y+16, x+14, y+19); 

g.drawLine(x+17, y+16, x+17, y+19); 

g.drawLine(x+20, y+16, x+20, y+19); 

g.drawLine(x+23, y+16, x+23, y+19); 

g.drawLine(x+26, y+16, x+27, y+19); 

break; 

case 1: //向左 

//画出上面的矩形 

g.fill3DRect(x, y, 30, 5, false); 

//画出下面的矩形 

g.fill3DRect(x, y+15, 30, 5, false); 

//画出中间的矩形 

g.fill3DRect(x+5, y+5, 20, 10, false); 

//画出圆形 

g.fillOval(x+10, y+5, 10, 10); 

//画出线 

g.drawLine(x+15, y+10, x, y+10); 

//画齿轮 

g.setColor(Color.darkGray); 

g.drawLine(x+2, y+1, x+2, y+4); 

g.drawLine(x+5, y+1, x+5, y+4); 

g.drawLine(x+8, y+1, x+8, y+4); 

g.drawLine(x+11, y+1, x+11, y+4); 

g.drawLine(x+14, y+1, x+14, y+4); 

g.drawLine(x+17, y+1, x+17, y+4); 

g.drawLine(x+20, y+1, x+20, y+4); 

g.drawLine(x+23, y+1, x+23, y+4); 

g.drawLine(x+26, y+1, x+26, y+4); 

 

g.drawLine(x+2, y+16, x+2, y+19); 

g.drawLine(x+5, y+16, x+5, y+19); 

g.drawLine(x+8, y+16, x+8, y+19); 

g.drawLine(x+11, y+16, x+11, y+19); 

g.drawLine(x+14, y+16, x+14, y+19); 

g.drawLine(x+17, y+16, x+17, y+19); 

g.drawLine(x+20, y+16, x+20, y+19); 

g.drawLine(x+23, y+16, x+23, y+19); 

g.drawLine(x+26, y+16, x+27, y+19); 

break; 

case 2: //向下 

//画出我的坦克(到时封装成一个函数) 

//1.画出左边的矩形 

g.fill3DRect(x, y, 5, 30,false); 

//2.画出右边的矩形 

g.fill3DRect(x+15, y, 5, 30,false); 

//3.画出中间矩形 

g.fill3DRect(x+5, y+5, 10, 20,false); 

//4.画出中间的圆形 

g.fillOval(x+5, y+10, 10, 10); 

//5.画出线 

g.drawLine(x+10, y+15, x+10, y+30); 

 

//画齿轮 

g.setColor(Color.darkGray); 

g.drawLine(x+1, y+2, x+4, y+2); 

g.drawLine(x+1, y+5, x+4, y+5); 

g.drawLine(x+1, y+8, x+4, y+8); 

g.drawLine(x+1, y+11, x+4, y+11); 

g.drawLine(x+1, y+14, x+4, y+14); 

g.drawLine(x+1, y+17, x+4, y+17); 

g.drawLine(x+1, y+20, x+4, y+20); 

g.drawLine(x+1, y+23, x+4, y+23); 

g.drawLine(x+1, y+27, x+4, y+27); 

 

g.drawLine(x+16, y+2, x+19, y+2); 

g.drawLine(x+16, y+5, x+19, y+5); 

g.drawLine(x+16, y+8, x+19, y+8); 

g.drawLine(x+16, y+11, x+19, y+11); 

g.drawLine(x+16, y+14, x+19, y+14); 

g.drawLine(x+16, y+17, x+19, y+17); 

g.drawLine(x+16, y+20, x+19, y+20); 

g.drawLine(x+16, y+23, x+19, y+23); 

g.drawLine(x+16, y+27, x+19, y+27); 

break; 

case 3: //向上 

//画出我的坦克(到时封装成一个函数) 

//1.画出左边的矩形 

g.fill3DRect(x, y, 5, 30,false); 

//2.画出右边的矩形 

g.fill3DRect(x+15, y, 5, 30,false); 

//3.画出中间矩形 

g.fill3DRect(x+5, y+5, 10, 20,false); 

//4.画出中间的圆形 

g.fillOval(x+5, y+10, 10, 10); 

//5.画出线 

g.drawLine(x+10, y+15, x+10, y); 

 

//画齿轮 

g.setColor(Color.darkGray); 

g.drawLine(x+1, y+2, x+4, y+2); 

g.drawLine(x+1, y+5, x+4, y+5); 

g.drawLine(x+1, y+8, x+4, y+8); 

g.drawLine(x+1, y+11, x+4, y+11); 

g.drawLine(x+1, y+14, x+4, y+14); 

g.drawLine(x+1, y+17, x+4, y+17); 

g.drawLine(x+1, y+20, x+4, y+20); 

g.drawLine(x+1, y+23, x+4, y+23); 

g.drawLine(x+1, y+27, x+4, y+27); 

 

g.drawLine(x+16, y+2, x+19, y+2); 

g.drawLine(x+16, y+5, x+19, y+5); 

g.drawLine(x+16, y+8, x+19, y+8); 

g.drawLine(x+16, y+11, x+19, y+11); 

g.drawLine(x+16, y+14, x+19, y+14); 

g.drawLine(x+16, y+17, x+19, y+17); 

g.drawLine(x+16, y+20, x+19, y+20); 

g.drawLine(x+16, y+23, x+19, y+23); 

g.drawLine(x+16, y+27, x+19, y+27); 

break; 

} 

} 

 

@Override 

public void keyPressed(KeyEvent e) //键按下处理 

{ 

//a表示向左，s表示向上，w表示向上，d表示向右 

if(e.getKeyCode()==KeyEvent.VK_D) 

{ 

this.hero.setDirect(0);//设置我的坦克的方向,向右 

this.hero.moveRight(); 

} 

else if(e.getKeyCode()==KeyEvent.VK_A) 

{ 

this.hero.setDirect(1);//向左 

this.hero.moveLeft(); 

} 

else if(e.getKeyCode()==KeyEvent.VK_S) 

{ 

this.hero.setDirect(2);//向下 

this.hero.moveDown(); 

} 

else if(e.getKeyCode()==KeyEvent.VK_W) 

{ 

this.hero.setDirect(3);//向上 

this.hero.moveUp(); 

} 

//重绘Panel 

this.repaint(); 

} 

 

@Override 

public void keyReleased(KeyEvent e) 

{ 

 

} 

 

@Override 

public void keyTyped(KeyEvent e) 

{ 

 

} 

} 

坦克大战v2.0_ Members.java 

package com.test6; 

 

//坦克类 

class Tank 

{ 

//表示坦克的横坐标 

int x=0; 

//坦克纵坐标 

int y=0; 

//坦克方向 

int direct=0;//0表示右，1表示左，2表示下，3表示上 

//坦克的速度 

int speed=1; 

//坦克的颜色 

int color; 

 

public int getColor() { 

return color; 

} 

 

public void setColor(int color) { 

this.color = color; 

} 

 

public int getSpeed() { 

return speed; 

} 

 

public void setSpeed(int speed) { 

this.speed = speed; 

} 

 

public int getDirect() { 

return direct; 

} 

 

public void setDirect(int direct) { 

this.direct = direct; 

} 

 

public int getX() { 

return x; 

} 

 

public void setX(int x) { 

this.x = x; 

} 

 

public int getY() { 

return y; 

} 

 

public void setY(int y) { 

this.y = y; 

} 

 

public Tank(int x,int y) 

{ 

this.x=x; 

this.y=y; 

} 

 

} 

 

//敌人的坦克 

class EnemyTank extends Tank 

{ 

public EnemyTank(int x,int y) 

{ 

super(x,y); 

} 

} 

 

//我的坦克 

class Hero extends Tank 

{ 

 

public Hero(int x,int y) 

{ 

super(x,y);//用父类的构造函数初始化子类的成员变量 

} 

 

//坦克向上移动 

public void moveUp() 

{ 

y-=speed; 

} 

//坦克向右移动 

public void moveRight() 

{ 

x+=speed; 

} 

//坦克向下移动 

public void moveDown() 

{ 

y+=speed; 

} 

//坦克向左移动 

public void moveLeft() 

{ 

x-=speed; 

} 

}
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Java笔记6(多线程、机票售票系统、坦克大战 ... | SQL SERVER 中行列转换 PIVOT UNPIVO
2012-08-23 14:30
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