学校课程作品，Java简易飞机大战
涉及Java基础知识，通过编写对基础能有不错的巩固和拓展。
package com.Mygame3.Plane;
import com.Mygame3.Plane.Obj.*;
import com.Mygame3.Plane.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 {
//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
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");
GameUtils.gameObjList.add(bgObj);
GameUtils.gameObjList.add(planeObj);
//游戏的点击启动事件
this.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (e.getButton() == 1 && state == 0){
state = 1;
}
}
});
//暂停
this.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == 32){
switch (state){
case 1:
state = 2;
break;
case 2:
state = 1;
break;
default:
}
}
}
});
//重复绘制
while (true){
if (state == 1){
createObj();
repaint();
}
try {
Thread.sleep(25);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
@Override
public void paint(Graphics g) {
if (offScreenImage == null){
offScreenImage = createImage(width,height);
}
Graphics gImage = offScreenImage.getGraphics();
gImage.fillRect(0,0,width,height);
if (state == 0){
//未开始
gImage.drawImage(GameUtils.bgImg,0,0,null);
gImage.drawImage(GameUtils.bossImg,220,120,null);
gImage.drawImage(GameUtils.explodeImg,270,350,null);
GameUtils.drawWord(gImage,"点击开始游戏",Color.yellow,40,180,300);
}
if (state == 1){
GameUtils.gameObjList.addAll(GameUtils.explodeObjList);
//运行中
for (int i = 0; i < GameUtils.gameObjList.size(); i++) {
GameUtils.gameObjList.get(i).paintSelf(gImage);
}
GameUtils.gameObjList.removeAll(GameUtils.removeList);
}
if (state == 3){
//失败
gImage.drawImage(GameUtils.explodeImg,planeObj.getX()-35,planeObj.getY()-50,null);
GameUtils.drawWord(gImage,"GAME OVER",Color.RED,50,180,300);
}
if (state == 4){
//通关
gImage.drawImage(GameUtils.explodeImg,bossObj.getX() + 30,bossObj.getY(),null);
GameUtils.drawWord(gImage,"游戏通关",Color.green,50,190,300);
}
GameUtils.drawWord(gImage,score+" 分",Color.green,40,30,100);
g.drawImage(offScreenImage,0,0,null);
count++;
System.out.println(GameUtils.gameObjList.size());
}
void createObj() {
//我方子弹
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));
}
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++;
}
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));
}
if (enemyCount > 1 && 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();
}
}
然后，就是对小游戏所需加载的图片等创建一个Utils类
package com.Mygame3.Plane.utils;
import com.Mygame3.Plane.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");
//我方战斗机图片
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("仿宋",Font.BOLD,size));
gImage.drawString(str,x,y);
}
}
接着就是对游戏内的我方飞机、敌方飞机、子弹等等创建其相应的类来实现自己的功能
包括，背景图的运动、我方飞机与地方飞机和子弹的碰撞检测，敌方boss的血条、血量扣除、敌方boss的子弹等等相关功能。
背景类package com.Mygame3.Plane.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;
if (y >= 0){
y = -2000;
}
}
}
GameObj类
package com.Mygame3.Plane.Obj;
import com.Mygame3.Plane.GameWin;
import java.awt.*;
public class GameObj {
Image img;
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;
}
public void paintSelf(Graphics gImage){
gImage.drawImage(img,x,y,null);
}
public Rectangle getRec(){
return new Rectangle(x,y,width,height);
}
}
飞机类
package com.Mygame3.Plane.Obj;
import com.Mygame3.Plane.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);
this.frame.addMouseMotionListener(new MouseAdapter() {
@Override
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();
}
}
敌机类
package com.Mygame3.Plane.Obj;
import com.Mygame3.Plane.GameWin;
import com.Mygame3.Plane.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);
y += speed;
//敌我飞机碰撞检测
if (this.getRec().intersects(this.frame.planeObj.getRec())){
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)
for (ShellObj shellObj: GameUtils.shellObjList) {
if (this.getRec().intersects(shellObj.getRec())){
ExplodeObj explodeObj = new ExplodeObj(x,y);
GameUtils.explodeObjList.add(explodeObj);
GameUtils.removeList.add(explodeObj);
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();
}
}
BOSS类
package com.Mygame3.Plane.Obj;
import com.Mygame3.Plane.GameWin;
import com.Mygame3.Plane.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);
if (x > 550 || x < -50){
speed = -speed;
}
x += speed;
for (ShellObj shellObj : GameUtils.shellObjList){
if (this.getRec().intersects(shellObj.getRec())){
shellObj.setX(-100);
shellObj.setY(100);
GameUtils.removeList.add(shellObj);
life--;
}
if (life <= 0){
GameWin.state = 4;
}
}
//血条的白色背景
gImage.setColor(Color.white);
gImage.fillRect(20,40,100,10);
//血条的绘制
gImage.setColor(Color.red);
gImage.fillRect(20,40,life * 100 / 10,10);
}
@Override
public Rectangle getRec() {
return super.getRec();
}
}
子弹类
package com.Mygame3.Plane.Obj;
import com.Mygame3.Plane.GameWin;
import com.Mygame3.Plane.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);
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();
}
}
```java
package com.Mygame3.Plane.Obj;
import com.Mygame3.Plane.GameWin;
import com.Mygame3.Plane.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);
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();
}
}
飞机爆炸类
package com.Mygame3.Plane.Obj;
import java.awt.*;
public class ExplodeObj extends GameObj {
static Image[] pic = new Image[16];
int explodeCount = 0;
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) {
if (explodeCount < 16){
super.img = pic[explodeCount];
super.paintSelf(gImage);
explodeCount++;
}
}
}
项目中的图片需要单独创建一个imgs命名的包，放入网上找的飞机、子弹、boss等图片，此项目参考了网上很多飞机大战游戏代码，适合学完Java基础，进行练习。
（后续还想，实现我方飞机、Boss的子弹呈现散射、激光等功能，能力有限，欢迎交流！）
