以java語言為工具的粗糙的飛機大戰游戲的開發與實作
- 第一步，匯入外部圖片的素材庫
- 第二步，構建表單和面板
- 第三步，在GamePanel上面構建背景圖畫
- 第四步，構建英雄機和敵人的機器，支援機器之類(包括順便把子彈類也構建完畢了吧（因為英雄機里面是用的上的）），順便做了一個充滿了惡意的不能被打掉的導彈類
- 第五步，為了游戲看起來更加和諧就加一個bgm吧
- 第六步，把GamePanel里面我們創建的這些類對應的功能代碼補齊寫好（真的很長）
- 第七步，把GameFrame里面的主方法寫出來并且補齊剩余部分
第一步，匯入外部圖片的素材庫
將找到的素材庫存放于src目錄下新建的img檔案夾中
第二步，構建表單和面板
這是java制作游戲老生常談的第一步了，先制作一個合適大小的表單GameFrame（這里弄個APP類專門保存Frame的大小資料），作為游戲畫面盛放的底座（玻璃窗的木制窗沿），然后做一個GamePanel，作為游戲畫面盛放的最底層背景，所有的游戲畫面都將在這個背景上面得以展現（玻璃窗的玻璃），
package ui;
public class APP {
public static int WIDTH = 512;
public static int HEIGHT = 802;
public APP() {
}
}
package ui;
import java.awt.Component;
import javax.swing.JFrame;
public class GameFrame extends JFrame {
GamePanel panel = new GamePanel();
public GameFrame() {
this.add(this.panel);
this.setTitle("全民飛機大戰 by MT");
this.setSize(APP.WIDTH, APP.HEIGHT);
this.setLocationRelativeTo((Component)null);
this.setDefaultCloseOperation(3);
this.setResizable(false);
}
package ui;
public class GamePanel extends JPanel {
public GamePanel() {
}
}
第三步，在GamePanel上面構建背景圖畫
創建一個背景圖片bg物件用于管理GamePanel上面的背景圖片，包括利用集合等方法讓每次呼叫畫背景圖的時候使背景圖順序播放等，
package ui;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.imageio.ImageIO;
public class bg {
BufferedImage img;
int x;
int y;
int w;
int h;
List<BufferedImage> bgs = new ArrayList();
int index = 0;
public bg() {
for(int i = 1; i <= 5; ++i) {
try {
this.bgs.add(ImageIO.read(this.getClass().getResource("/img/bg" + i + ".jpg")));
} catch (IOException var3) {
var3.printStackTrace();
}
this.img = (BufferedImage)this.bgs.get(0);
this.w = this.img.getWidth();
this.h = this.img.getHeight();
this.x = 0;
this.y = 0;
}
}
public void changeImg() {
++this.index;
if (this.index >= 5) {
this.index = 0;
}
this.img = (BufferedImage)this.bgs.get(this.index);
}
}
package ui;
public class GamePanel extends JPanel {
bg bg = new bg();
public GamePanel() {
public void paint(Graphics g) {
super.paint(g);
g.drawImage(this.bg.img, this.bg.x, this.bg.y, this.bg.w, this.bg.h, (ImageObserver)null);
}
}
}
第四步，構建英雄機和敵人的機器，支援機器之類(包括順便把子彈類也構建完畢了吧（因為英雄機里面是用的上的）），順便做了一個充滿了惡意的不能被打掉的導彈類
package ui;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
public class Bullet {
BufferedImage img;
int x;
int y;
int w;
int h;
public Bullet(int hx, int hy) {
try {
this.img = ImageIO.read(this.getClass().getResource("/img/fire.png"));
this.w = this.img.getWidth() / 3;
this.h = this.img.getHeight() / 3;
this.x = hx;
this.y = hy;
} catch (IOException var4) {
var4.printStackTrace();
}
}
public void move() {
this.y -= 10;
}
//這里設定的boss是打一下打不死的，所以得計算擊打的次數
public boolean hitByBoss1(Boss1 b1) {
int b1x = b1.x;
int b1y = b1.y;
int b1w = b1.w;
int b1h = b1.h;
boolean hit = false;
hit = this.x <= b1x + b1w && this.x >= b1x - this.w && this.y >= b1y - this.h && this.y <= b1y + b1h;
return hit;
}
}
package ui;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.imageio.ImageIO;
public class Hero {
BufferedImage img;
int x;
int y;
int w;
int h;
int level;
int blood;
public Hero() {
try {
this.img = ImageIO.read(this.getClass().getResource("/img/ep14.png"));
this.w = this.img.getWidth() / 2;
this.h = this.img.getHeight() / 2;
this.x = 300;
this.y = 700;
this.level = 1;
this.blood = 3;
} catch (IOException var2) {
var2.printStackTrace();
}
}
public void moveTO(int x2, int y2) {
this.x = x2 - this.w / 2;
this.y = y2 - this.h / 2;
}
//等級不同的話射出來的子彈也是不同的
public List<Bullet> shoot() {
List<Bullet> bs = new ArrayList();
Bullet b;
if (this.level == 1) {
b = new Bullet(this.x + 26, this.y - 30);
bs.add(b);
} else {
Bullet b1;
if (this.level == 2) {
b = new Bullet(this.x + 10, this.y);
b1 = new Bullet(this.x + 40, this.y);
bs.add(b);
bs.add(b1);
} else {
Bullet b2;
if (this.level == 3) {
b = new Bullet(this.x, this.y);
b1 = new Bullet(this.x + 26, this.y - 10);
b2 = new Bullet(this.x + 50, this.y);
bs.add(b);
bs.add(b1);
bs.add(b2);
} else {
Bullet b3;
if (this.level == 4) {
b = new Bullet(this.x - 20, this.y - 10);
b1 = new Bullet(this.x + 10, this.y - 10);
b2 = new Bullet(this.x + 40, this.y - 10);
b3 = new Bullet(this.x + 70, this.y - 10);
bs.add(b);
bs.add(b1);
bs.add(b2);
bs.add(b3);
} else if (this.level == 5) {
b = new Bullet(this.x - 5, this.y);
b1 = new Bullet(this.x + 25, this.y - 10);
b2 = new Bullet(this.x + 55, this.y);
b3 = new Bullet(this.x + 85, this.y + 15);
Bullet b4 = new Bullet(this.x - 35, this.y + 15);
bs.add(b);
bs.add(b1);
bs.add(b2);
bs.add(b3);
bs.add(b4);
}
}
}
}
return bs;
}
}
package ui;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
public class Enmey {
BufferedImage img;
int x;
int y;
int w;
int h;
int sp;
int ds;
int boold;
public Enmey() {
Random rd = new Random();
int id = rd.nextInt(11) + 1;
String path = "/img/ep" + (id < 10 ? "0" : "") + id + ".png";
try {
this.img = ImageIO.read(this.getClass().getResource(path));
this.w = this.img.getWidth();
this.h = this.img.getHeight();
this.x = rd.nextInt(APP.WIDTH - this.w);
this.y = -this.h;
this.sp = rd.nextInt(8) + 1;
this.ds = rd.nextInt(3);
this.boold = rd.nextInt(3) + 1;
} catch (IOException var5) {
var5.printStackTrace();
}
}
public void move() {
if (this.ds == 0) {
this.y += this.sp;
} else if (this.ds == 1) {
this.y += this.sp;
++this.x;
} else {
this.y += this.sp;
--this.x;
}
}
public boolean hitByHero(Hero hero) {
int hx = hero.x;
int hy = hero.y;
int hw = hero.w;
int hh = hero.h;
boolean hit = false;
hit = this.x <= hx + hw && this.x >= hx - this.w && this.y >= hy - this.h && this.y <= hy + hh;
return hit;
}
public boolean hitByBullet(Bullet b) {
int bx = b.x;
int by = b.y;
int bh = b.h;
int bw = b.w;
boolean hit = false;
hit = this.x <= bx + bw && this.x >= bx - this.w && this.y >= by - this.h && this.y <= by + bh;
return hit;
}
}
package ui;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
public class Boss1 {
BufferedImage img;
int x;
int y;
int w;
int h;
int ds;
int sp;
int boold = 100;
Random rd = new Random();
public Boss1() {
try {
this.img = ImageIO.read(this.getClass().getResource("/img/ep13.png"));
this.w = this.img.getWidth() * 2;
this.h = this.img.getHeight() * 2;
this.x = 100;
this.y = -this.h;
this.sp = this.rd.nextInt(5);
} catch (IOException var2) {
var2.printStackTrace();
}
}
public void move() {
if (this.ds == 0) {
this.x -= this.sp;
} else if (this.ds == 1) {
this.x -= this.sp;
this.y += this.sp;
} else if (this.ds == 2) {
this.y += this.sp;
} else if (this.ds == 3) {
this.x += this.sp;
this.y += this.sp;
} else if (this.ds == 4) {
this.x += this.sp;
} else if (this.ds == 5) {
this.x += this.sp;
this.y -= this.sp;
} else if (this.ds == 6) {
this.y -= this.sp;
} else if (this.ds == 7) {
this.x -= this.sp;
this.y -= this.sp;
}
if (this.x > APP.WIDTH * 3 / 4) {
this.ds = this.rd.nextInt(3);
} else if (this.x < 0) {
this.ds = this.rd.nextInt(5) + 2;
} else if (this.y < 0) {
this.ds = this.rd.nextInt(5);
} else if (this.y > 300) {
this.ds = this.rd.nextInt(4) + 4;
}
}
public boolean hitByHero(Hero hero) {
int hx = hero.x;
int hy = hero.y;
int hh = hero.h;
int hw = hero.w;
boolean hit = false;
hit = this.x <= hx + hw && this.x >= hx - this.w && this.y >= hy - this.h && this.y <= hy + hh;
return hit;
}
}
package ui;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
public class HelpPlane {
BufferedImage img;
int x;
int y;
int w;
int h;
int sp;
int boold = 5;
public HelpPlane() {
try {
this.img = ImageIO.read(this.getClass().getResource("/img/ep12.png"));
this.w = this.img.getWidth();
this.h = this.img.getHeight();
Random rd = new Random();
this.x = rd.nextInt(APP.WIDTH - this.w);
this.y = -this.h;
this.sp = rd.nextInt(8) + 1;
} catch (IOException var2) {
var2.printStackTrace();
}
}
public void move() {
this.y += this.sp;
}
public boolean hitByBullet(Bullet b) {
int bx = b.x;
int by = b.y;
int bh = b.h;
int bw = b.w;
boolean hit = false;
hit = this.x <= bx + bw && this.x >= bx - this.w && this.y >= by - this.h && this.y <= by + bh;
return hit;
}
}
package ui;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
public class Missile {
BufferedImage img;
int x;
int y;
int w;
int h;
public Missile() {
try {
this.img = ImageIO.read(this.getClass().getResource("/img/ep15.png"));
this.w = this.img.getWidth();
this.h = this.img.getHeight() / 3;
Random rd = new Random();
this.x = rd.nextInt(APP.WIDTH - this.w);
this.y = -this.h;
} catch (IOException var2) {
var2.printStackTrace();
}
}
public void move() {
this.y += 15;
}
public boolean hitByMissile(Hero hero) {
int hx = hero.x;
int hy = hero.y;
int hh = hero.h;
int hw = hero.w;
boolean hit = false;
hit = this.x <= hx + hw && this.x >= hx - this.w && this.y >= hy - this.h && this.y <= hy + hh;
return hit;
}
}
第五步，為了游戲看起來更加和諧就加一個bgm吧
還是在ui包下面創建一個Music類，然后在檔案里面匯入MP3
package ui;
import java.io.File;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Sequence;
import javax.sound.midi.Sequencer;
public class Music {
public Music() {
}
public void run() {
try {
Sequencer sequencer = MidiSystem.getSequencer();
sequencer.open();
File my = new File("1.mp3");
Sequence mySeq = MidiSystem.getSequence(my);
sequencer.setSequence(mySeq);
sequencer.setLoopCount(-1);
sequencer.start();
} catch (Exception var4) {
var4.printStackTrace();
}
}
}
第六步，把GamePanel里面我們創建的這些類對應的功能代碼補齊寫好（真的很長）
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//
package ui;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.ImageObserver;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JPanel;
public class GamePanel extends JPanel {
Hero hero = new Hero();
Boss1 b1 = new Boss1();
List<Enmey> es = new ArrayList();
List<HelpPlane> hps = new ArrayList();
List<Bullet> bs = new ArrayList();
List<Missile> ms = new ArrayList();
int score = 0;
boolean isGameOver = false;
bg bg = new bg();
int z = 0;
int y = 0;
int index = 0;
int x = 0;
public GamePanel() {
this.setBackground(new Color(80, 60, 30));
MouseAdapter adapter = new MouseAdapter() {
public void mouseMoved(MouseEvent e) {
int x = e.getX();
int y = e.getY();
if (!GamePanel.this.isGameOver) {
GamePanel.this.hero.moveTO(x, y);
}
GamePanel.this.repaint();
}
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
if (GamePanel.this.isGameOver) {
GamePanel.this.isGameOver = false;
GamePanel.this.hero = new Hero();
GamePanel.this.es.clear();
GamePanel.this.bs.clear();
GamePanel.this.hps.clear();
GamePanel.this.score = 0;
GamePanel.this.ms.clear();
GamePanel.this.b1 = new Boss1();
}
}
};
this.addMouseListener(adapter);
this.addMouseMotionListener(adapter);
}
public void action() {
(new Thread() {
public void run() {
while(true) {
if (!GamePanel.this.isGameOver) {
GamePanel.this.enmeyEnter();
int i;
Enmey e;
for(i = 0; i < GamePanel.this.es.size(); ++i) {
e = (Enmey)GamePanel.this.es.get(i);
e.move();
}
GamePanel.this.helpEnter();
for(i = 0; i < GamePanel.this.hps.size(); ++i) {
HelpPlane h = (HelpPlane)GamePanel.this.hps.get(i);
h.move();
}
GamePanel.this.missileEnter();
for(i = 0; i < GamePanel.this.ms.size(); ++i) {
Missile m = (Missile)GamePanel.this.ms.get(i);
m.move();
}
GamePanel.this.shootAction();
Bullet b;
for(i = 0; i < GamePanel.this.bs.size(); ++i) {
b = (Bullet)GamePanel.this.bs.get(i);
b.move();
}
if (GamePanel.this.score > 10000) {
GamePanel.this.boss1Enter();
GamePanel.this.b1hAction();
GamePanel.this.b1Action();
GamePanel.this.b1.move();
GamePanel.this.es.clear();
}
GamePanel.this.boomAction();
GamePanel.this.bangAction();
GamePanel.this.hpAction();
GamePanel.this.miAction();
for(i = 0; i < GamePanel.this.es.size(); ++i) {
e = (Enmey)GamePanel.this.es.get(i);
if (e.y > APP.HEIGHT) {
GamePanel.this.es.remove(e);
}
if (e.x > APP.WIDTH) {
GamePanel.this.es.remove(e);
}
if (e.x + e.w < 0) {
GamePanel.this.es.remove(e);
}
}
for(i = 0; i < GamePanel.this.bs.size(); ++i) {
b = (Bullet)GamePanel.this.bs.get(i);
if (b.y + b.h < 0) {
GamePanel.this.bs.remove(b);
}
}
try {
Thread.sleep(20L);
GamePanel.this.repaint();
} catch (InterruptedException var3) {
var3.printStackTrace();
}
}
}
}
}).start();
}
protected void b1hAction() {
if (this.b1.hitByHero(this.hero)) {
this.hero.blood = 0;
this.isGameOver = true;
}
}
protected void b1Action() {
for(int i = 0; i < this.bs.size(); ++i) {
Bullet b = (Bullet)this.bs.get(i);
if (b.hitByBoss1(this.b1)) {
--this.b1.boold;
this.bs.remove(i);
this.score += 10;
if (this.b1.boold <= 0) {
this.b1.boold = 0;
this.isGameOver = true;
}
break;
}
}
}
protected void miAction() {
for(int i = 0; i < this.ms.size(); ++i) {
Missile m = (Missile)this.ms.get(i);
if (m.hitByMissile(this.hero)) {
Hero var10000 = this.hero;
var10000.blood -= 3;
if (this.hero.blood <= 0) {
this.hero.blood = 0;
this.isGameOver = true;
}
break;
}
}
}
protected void missileEnter() {
++this.z;
if (this.z % 500 == 0) {
Missile m = new Missile();
this.ms.add(m);
}
}
protected void hpAction() {
for(int i = 0; i < this.bs.size(); ++i) {
Bullet b = (Bullet)this.bs.get(i);
for(int j = 0; j < this.hps.size(); ++j) {
HelpPlane h = (HelpPlane)this.hps.get(j);
if (h.hitByBullet(b)) {
--h.boold;
if (h.boold <= 0) {
this.hps.remove(h);
if (this.hero.level <= 4) {
++this.hero.level;
}
if (this.hero.level > 2 && this.hero.blood <= 2) {
++this.hero.blood;
}
}
this.bs.remove(i);
this.score += 10;
break;
}
}
}
}
protected void bangAction() {
for(int i = 0; i < this.bs.size(); ++i) {
Bullet b = (Bullet)this.bs.get(i);
for(int j = 0; j < this.es.size(); ++j) {
Enmey e = (Enmey)this.es.get(j);
if (e.hitByBullet(b)) {
--e.boold;
if (e.boold <= 0) {
this.es.remove(e);
}
this.bs.remove(i);
this.score += 10;
if (this.score % 1000 == 0 && this.score > 1000) {
this.bg.changeImg();
}
break;
}
}
}
}
protected void boomAction() {
for(int i = 0; i < this.es.size(); ++i) {
Enmey e = (Enmey)this.es.get(i);
if (e.hitByHero(this.hero)) {
this.es.remove(i);
if (this.hero.level >= 2) {
--this.hero.level;
}
this.score += 1024;
--this.hero.blood;
if (this.hero.blood <= 0) {
this.hero.blood = 0;
this.isGameOver = true;
}
break;
}
}
}
protected void boss1Enter() {
}
protected void shootAction() {
++this.y;
if (this.y % 15 == 0) {
List<Bullet> b = this.hero.shoot();
this.bs.addAll(b);
}
}
protected void enmeyEnter() {
++this.index;
if (this.index % 25 == 0) {
Enmey e = new Enmey();
this.es.add(e);
}
}
protected void helpEnter() {
++this.x;
if (this.x % 500 == 0) {
HelpPlane h = new HelpPlane();
this.hps.add(h);
}
}
public void paint(Graphics g) {
super.paint(g);
g.drawImage(this.bg.img, this.bg.x, this.bg.y, this.bg.w, this.bg.h, (ImageObserver)null);
g.drawImage(this.hero.img, this.hero.x, this.hero.y, this.hero.w, this.hero.h, (ImageObserver)null);
int i;
for(i = 0; i < this.es.size(); ++i) {
Enmey e = (Enmey)this.es.get(i);
g.drawImage(e.img, e.x, e.y, e.w, e.h, (ImageObserver)null);
}
for(i = 0; i < this.hps.size(); ++i) {
HelpPlane h = (HelpPlane)this.hps.get(i);
g.drawImage(h.img, h.x, h.y, h.w, h.h, (ImageObserver)null);
}
for(i = 0; i < this.bs.size(); ++i) {
Bullet b = (Bullet)this.bs.get(i);
g.drawImage(b.img, b.x, b.y, b.w, b.h, (ImageObserver)null);
}
for(i = 0; i < this.ms.size(); ++i) {
Missile m = (Missile)this.ms.get(i);
g.drawImage(m.img, m.x, m.y, m.h, m.w, (ImageObserver)null);
}
g.drawImage(this.b1.img, this.b1.x, this.b1.y, this.b1.w, this.b1.h, (ImageObserver)null);
g.setColor(Color.white);
Font font = new Font("楷體", 1, 24);
g.setFont(font);
g.drawString("血量:" + this.hero.blood, 20, 30);
g.drawString("分數:" + this.score, 330, 30);
g.setColor(Color.red);
Font f = new Font("楷體", 1, 40);
g.setFont(f);
if (this.isGameOver) {
g.drawString("Game Over!", 166, 360);
}
}
}
第七步，把GameFrame里面的主方法寫出來并且補齊剩余部分
package ui;
import java.awt.Component;
import javax.swing.JFrame;
public class GameFrame extends JFrame {
GamePanel panel = new GamePanel();
public GameFrame() {
this.add(this.panel);
this.setTitle("全民飛機大戰 by MT");
this.setSize(APP.WIDTH, APP.HEIGHT);
this.setLocationRelativeTo((Component)null);
this.setDefaultCloseOperation(3);
this.setResizable(false);
}
public static void main(String[] args) {
GameFrame frame = new GameFrame();
frame.panel.action();
frame.setVisible(true);
}
}
剩下的就是享受游戲了??，
這次整個專案給我的識訓就是還是堅持貫徹面向物件的思想，把能夠多余的抽離出來的部分都抽離出來做成物件，然后讓程式呼叫我們創建的一個一個物件和里面包含的方法來執行功能，這樣可以使思路清晰代碼簡潔且易于修復和復用，
一個不足之處就是在實作添加bgm的功能時我一直搞不懂這玩意究竟是怎么運作的，最后這段代碼是直接在網上找了copy過來的，
第一次寫博客語言顛倒混亂，望諸君見諒，
感謝看到此處，希望我們的java水平都能越來越高，
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標籤：其他