Java程序设计-飞机大战
项目简介
团队选择难度为B等级的任务小游戏，一方面是因为其难度尚可，值得一试，另一方面也是因为两人对其的兴趣不小，对于项目的热情很高，同时也对于我们基础知识的巩固复习有好处。在几周的空余时间里，我和队员完成了这个项目，其中不足之处还请老师批评指正。
项目关键技术
java变量、java数据类型、判断语句、循环结构、数组、Java集合、简单窗口创建、图形图片绘制、双缓存技术、事件-鼠标和键盘事件、物体的碰撞检测。awt抽象窗口工具包、部分复杂算法、大部分注释、GUI界面、面向对象程序设计、线程等
开发环境：jdk11
开发工具：eclipse
项目需求分析
1.简单易懂的玩法，作为小游戏，能够激发玩家的兴趣
2.能够用鼠标进行流利地操作（灵活左右移动躲避敌机及子弹）
项目亮点： 1、充分发挥鼠标事件实现流利操作2.碰撞检测
功能截图演示部分：
任务分配：
| 位置姓名 | 任务分配 |
| 组长 | 1.负责团队博客创建及书写整理 、任务分配和团队答辩筹备，对于组员进行相关内容的教导 2.负责游戏基类的编写（子弹类，敌我战机类，使用鼠标控制战机移动）等代码的构建
|
| 组员 | 1、负责git仓库创建和游戏素材（背景图，子弹飞机的生成）搜寻并添加创意，并对于博客进行补充，和相关疑难问题的解决 2、负责游戏设置规则类（使用空格游戏暂停，通关条件）和工具类的编写以及游戏相关内容的补充，同时对于整体代码bug漏洞进行检查
|
项目git地址：https://gitee.com/south-of-the-south-bank/planewar
git提交记录：
代码静态扫描
代码内容基本符合规范
代码部分：
GameUI
package main;
import obj.*;
import utils.GameUtils;
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class GameWin extends JFrame {
private static final long serialVersionUID = 7429332630858909252L;
//游戏状态 0未开始 1游戏中 2暂停 3.通关失败 4.通关成功
//定义默认状态
public static int state = 0;
//游戏得分
public static int score = 0;
//双缓存的图片
Image offScreenImage = null;
//窗口的宽度
int width = 600;
//窗口的高度
int height = 600;
//游戏的重绘次数
int count = 1;
//敌机出现的数量
int enemyCount = 0;
//背景图对象
BgObj bgObj = new BgObj(GameUtils.bgImg,0,-2000,2);
//我方飞机对象
public PlaneObj planeObj = new PlaneObj(GameUtils.planeImg,290,550,20,30,0,this);
//敌方boss对象
public BossObj bossObj = null;
//启动方法
public void launch(){
//设置窗口是否可见
this.setVisible(true);
//设置窗口大小
this.setSize(width,height);
//设置窗口位置
this.setLocationRelativeTo(null);
//设置窗口标题
this.setTitle("飞机大战 by张、盘");
GameUtils.gameObjList.add(bgObj);
GameUtils.gameObjList.add(planeObj);
//添加鼠标点击事件
this.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (e.getButton() == 1 && state == 0){
//游戏开始
state = 1;
}
}
});
//添加用于暂停的键盘监听事件
this.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
//点击空格键
if (e.getKeyCode() == 32){
switch (state){
case 1:
state = 2;
break;
case 2:
state = 1;
break;
default:
}
}
}
});
//背景图的不断绘制
while (true){
if (state == 1){
createObj();
repaint();
}
try {
//每间隔25毫秒调用一次方法
Thread.sleep(25);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
@Override
public void paint(Graphics g) {
//初始化
if (offScreenImage == null){
offScreenImage = createImage(width,height);
}
//获取offScreenImage的画笔对象
Graphics gImage = offScreenImage.getGraphics();
//填充区域
gImage.fillRect(0,0,width,height);
if (state == 0){
//未开始
//用画笔g绘制图片：背景、boss、爆炸特效
gImage.drawImage(GameUtils.bgImg,0,0,null);
gImage.drawImage(GameUtils.bossImg,220,120,null);
gImage.drawImage(GameUtils.explodeImg,270,350,null);
//开始界面
GameUtils.drawWord(gImage,"点击开始游戏",Color.red,40,180,300);
}
if (state == 1){
GameUtils.gameObjList.addAll(GameUtils.explodeObjList);
//运行中，遍历
for (int i = 0; i < GameUtils.gameObjList.size(); i++) {
GameUtils.gameObjList.get(i).paintSelf(gImage);
}
//下一次绘制之前删除的元素
GameUtils.gameObjList.removeAll(GameUtils.removeList);
}
if (state == 3){
//失败
gImage.drawImage(GameUtils.explodeImg,planeObj.getX()-35,planeObj.getY()-50,null);
GameUtils.drawWord(gImage,"你失败了！",Color.red,50,180,300);
}
if (state == 4){
//通关
gImage.drawImage(GameUtils.explodeImg,bossObj.getX() + 30,bossObj.getY(),null);
GameUtils.drawWord(gImage,"恭喜通关！",Color.green,50,190,300);
}
//绘制计分板
GameUtils.drawWord(gImage,score+" 分",Color.green,40,30,100);
g.drawImage(offScreenImage,0,0,null);
count++;
//打印gameObjList的长度
System.out.println(GameUtils.gameObjList.size());
}
void createObj() {
/*我方子弹
控制子弹生成速度
每调用15次paint方法生成一颗子弹*/
if (count % 15 == 0){
GameUtils.shellObjList.add(new ShellObj(GameUtils.shellImg, planeObj.getX() + 3, planeObj.getY() - 16, 14, 29, 5, this));
GameUtils.gameObjList.add(GameUtils.shellObjList.get(GameUtils.shellObjList.size() - 1));
}
//创建敌机
if (count % 15 == 0){
GameUtils.enemyObjList.add(new EnemyObj(GameUtils.enemyImg,(int)(Math.random()*12)*50,0,49,36,5,this));
GameUtils.gameObjList.add(GameUtils.enemyObjList.get(GameUtils.enemyObjList.size() -1));
enemyCount++;
}
//敌机子弹
if (count % 15 == 0 && bossObj != null){
GameUtils.bulletObjList.add(new BulletObj(GameUtils.bulletImg,bossObj.getX()+76,bossObj.getY()+85,15,25,5,this));
GameUtils.gameObjList.add(GameUtils.bulletObjList.get(GameUtils.bulletObjList.size() - 1));
}
//控制boss出现条件
if (enemyCount > 10 && bossObj == null){
bossObj = new BossObj(GameUtils.bossImg,250,35,155,100,5,this);
GameUtils.gameObjList.add(bossObj);
}
}
public static void main(String[] args) {
GameWin gameWin = new GameWin();
gameWin.launch();
}
}飞行物父类
package obj;
import main.GameWin;
import java.awt.*;
public class GameObj {
//物体基本属性的定义：图片、坐标、宽高、移速、窗口的引用
Image img;//定义Imag类型的静态数组
int x;
int y;
int width;
int height;
double speed;
GameWin frame;
public Image getImg() {
return img;
}
public void setImg(Image img) {
this.img = img;
}
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 int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height;
}
public double getSpeed() {
return speed;
}
public void setSpeed(double speed) {
this.speed = speed;
}
public GameWin getFrame() {
return frame;
}
public void setFrame(GameWin frame) {
this.frame = frame;
}
public GameObj() {
}
public GameObj(int x, int y) {
this.x = x;
this.y = y;
}
public GameObj(Image img, int x, int y, double speed) {
this.img = img;
this.x = x;
this.y = y;
this.speed = speed;
}
public GameObj(Image img, int x, int y, int width, int height, double speed, GameWin frame) {
this.img = img;
this.x = x;
this.y = y;
this.width = width;
this.height = height;
this.speed = speed;
this.frame = frame;
}
//绘制自身的方法
public void paintSelf(Graphics gImage){
gImage.drawImage(img,x,y,null);
}
//获取自身矩形，用于碰撞检测
public Rectangle getRec(){
return new Rectangle(x,y,width,height);
}
}
己方战机
package obj;
import main.GameWin;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class PlaneObj extends GameObj {
@Override
public Image getImg() {
return super.getImg();
}
public PlaneObj() {
super();
}
public PlaneObj(Image img, int x, int y, int width, int height, double speed, GameWin frame) {
super(img, x, y, width, height, speed, frame);
//鼠标滚动事件
this.frame.addMouseMotionListener(new MouseAdapter() {
@Override
//飞机的横纵坐标等于鼠标光标的横纵坐标减去飞机宽高的一半
public void mouseMoved(MouseEvent e) {
PlaneObj.super.x = e.getX() - 11;
PlaneObj.super.y = e.getY() - 16;
}
});
}
@Override
public void paintSelf(Graphics gImage) {
super.paintSelf(gImage);
//我方飞机与敌方boss的碰撞检测
if (this.frame.bossObj != null && this.getRec().intersects(this.frame.bossObj.getRec())){
GameWin.state = 3;
}
}
@Override
public Rectangle getRec() {
return super.getRec();
}
}敌机
package obj;
import main.GameWin;
import utils.GameUtils;
import java.awt.*;
public class ShellObj extends GameObj {
@Override
public Image getImg() {
return super.getImg();
}
public ShellObj() {
super();
}
public ShellObj(Image img, int x, int y, int width, int height, double speed, GameWin frame) {
super(img, x, y, width, height, speed, frame);
}
@Override
public void paintSelf(Graphics gImage) {
super.paintSelf(gImage);
//实现子弹的移动
y -= speed;
//我方子弹的越界消失；条件 y < 0 ；改变后的坐标 (-100,100)
if (y < 0){
this.x = -100;
this.y = 100;
GameUtils.removeList.add(this);
}
}
@Override
public Rectangle getRec() {
return super.getRec();
}
}敌机
package obj;
import main.GameWin;
import utils.GameUtils;
import java.awt.*;
public class EnemyObj extends GameObj {
public EnemyObj() {
super();
}
public EnemyObj(Image img, int x, int y, int width, int height, double speed, GameWin frame) {
super(img, x, y, width, height, speed, frame);
}
@Override
public void paintSelf(Graphics gImage) {
super.paintSelf(gImage);
//敌机坐标
y += speed;
//敌我飞机碰撞检测
if (this.getRec().intersects(this.frame.planeObj.getRec())){
//游戏失败
GameWin.state = 3;
}
//敌机的越界消失；判断条件 y > 600 ；改变后的坐标(-200,-200)
if (y > 600){
this.x = -200;
this.y = 200;
GameUtils.removeList.add(this);
}
//敌机消失前移动到(-200,-200) 我方子弹(-100,100)
//将this与每一个shellobj进行碰撞检测
for (ShellObj shellObj: GameUtils.shellObjList) {
if (this.getRec().intersects(shellObj.getRec())){
//创造爆炸效果
ExplodeObj explodeObj = new ExplodeObj(x,y);
GameUtils.explodeObjList.add(explodeObj);
GameUtils.removeList.add(explodeObj);
//改变碰撞敌机的坐标
shellObj.setX(-100);
shellObj.setY(100);
this.x = -200;
this.y = 200;
GameUtils.removeList.add(shellObj);
GameUtils.removeList.add(this);
GameWin.score++;
}
}
}
@Override
public Rectangle getRec() {
return super.getRec();
}
}子弹类
package obj;
import main.GameWin;
import utils.GameUtils;
import java.awt.*;
public class ShellObj extends GameObj {
@Override
public Image getImg() {
return super.getImg();
}
public ShellObj() {
super();
}
public ShellObj(Image img, int x, int y, int width, int height, double speed, GameWin frame) {
super(img, x, y, width, height, speed, frame);
}
@Override
public void paintSelf(Graphics gImage) {
super.paintSelf(gImage);
//实现子弹的移动
y -= speed;
//我方子弹的越界消失；条件 y < 0 ；改变后的坐标 (-100,100)
if (y < 0){
this.x = -100;
this.y = 100;
GameUtils.removeList.add(this);
}
}
@Override
public Rectangle getRec() {
return super.getRec();
}
}package obj;
import main.GameWin;
import utils.GameUtils;
import java.awt.*;
public class BulletObj extends GameObj {
public BulletObj(Image img, int x, int y, int width, int height, double speed, GameWin frame) {
super(img, x, y, width, height, speed, frame);
}
@Override
public void paintSelf(Graphics gImage) {
super.paintSelf(gImage);
//子弹速度
y += speed;
//敌方子弹与我方飞机的碰撞检测
if (this.getRec().intersects(this.frame.planeObj.getRec())){
GameWin.state = 3;
}
//敌方子弹的越界消失；条件 y > 600 ；改变后的坐标(-300,300)
if (y > 600){
this.x = -300;
this.y = 300;
GameUtils.removeList.add(this);
}
}
@Override
public Rectangle getRec() {
return super.getRec();
}
}背景图循环
package obj;
import java.awt.*;
public class BgObj extends GameObj {
public BgObj() {
super();
}
public BgObj(Image img, int x, int y, double speed) {
super(img, x, y, speed);
}
@Override
public void paintSelf(Graphics gImage) {
super.paintSelf(gImage);
y += speed;
//背景图的循环
if (y >= 0){
y = -2000;
}
}
}BOOS类
package obj;
import main.GameWin;
import utils.GameUtils;
import java.awt.*;
public class BossObj extends GameObj {
int life = 10;
public BossObj(Image img, int x, int y, int width, int height, double speed, GameWin frame) {
super(img, x, y, width, height, speed, frame);
}
@Override
public void paintSelf(Graphics gImage) {
super.paintSelf(gImage);
//对于boss移动距离的限定
if (x > 550 || x < -50){
speed = -speed;
}
//实现boss的移动
x += speed;
//boss与己方子弹的碰撞检测
for (ShellObj shellObj : GameUtils.shellObjList){
if (this.getRec().intersects(shellObj.getRec())){
//删除碰撞后的子弹
shellObj.setX(-100);
shellObj.setY(100);
GameUtils.removeList.add(shellObj);
life--;
}
if (life <= 0){
//通关
GameWin.state = 4;
}
}
//血条白色背景
gImage.setColor(Color.white);
gImage.fillRect(20,40,100,10);
//绘制血条
gImage.setColor(Color.red);
gImage.fillRect(20,40,life * 100 / 10,10);
}
@Override
public Rectangle getRec() {
return super.getRec();
}
}工具类
package utils;
import obj.*;
import java.awt.*;
import java.util.ArrayList;
import java.util.List;
public class GameUtils {
//背景图片
public static Image bgImg = Toolkit.getDefaultToolkit().getImage("imgs/bg.jpg");
//boss图片
public static Image bossImg = Toolkit.getDefaultToolkit().getImage("imgs/boss.png");
//爆炸图片
public static Image explodeImg = Toolkit.getDefaultToolkit().getImage("imgs/explode/e6.gif");
//我方战机图片
public static Image planeImg = Toolkit.getDefaultToolkit().getImage("imgs/plane.png");
//我方子弹图片
public static Image shellImg = Toolkit.getDefaultToolkit().getImage("imgs/shell.png");
//敌方子弹图片
public static Image bulletImg = Toolkit.getDefaultToolkit().getImage("imgs/bullet.png");
//敌机图片
public static Image enemyImg = Toolkit.getDefaultToolkit().getImage("imgs/enemy.png");
//所有游戏物体的集合
public static List gameObjList = new ArrayList<>();
//要删除元素的集合
public static List removeList = new ArrayList<>();
//我方子弹的集合
public static List shellObjList = new ArrayList<>();
//敌方子弹的集合
public static List bulletObjList = new ArrayList<>();
//敌机的集合
public static List enemyObjList = new ArrayList<>();
//爆炸的集合
public static List explodeObjList = new ArrayList<>();
//绘制字符串的工具类
public static void drawWord(Graphics gImage,String str,Color color,int size,int x,int y){
gImage.setColor(color);
gImage.setFont(new Font("黑体",Font.BOLD,size));
gImage.drawString(str,x,y);
}
} 爆炸类
import java.awt.*;
public class ExplodeObj extends GameObj {
static Image[] pic = new Image[16];
//限制爆炸效果
int explodeCount = 0;
//将imgs中图片添加到静态数组
static {
for (int i = 0; i < pic.length; i++) {
pic[i] = Toolkit.getDefaultToolkit().getImage("imgs/explode/e"+(i+1)+".gif");
}
}
public ExplodeObj(int x, int y) {
super(x, y);
}
@Override
public void paintSelf(Graphics gImage) {
//限制爆炸效果出现的次数
if (explodeCount < 16){
super.img = pic[explodeCount];
super.paintSelf(gImage);
explodeCount++;
}
}
}