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Java實(shí)現(xiàn)簡(jiǎn)單的飛機(jī)大戰(zhàn)游戲(敵機(jī)下落篇)

更新時(shí)間：2022年05月07日 15:53:29 作者：貓奴.

這篇文章主要為大家詳細(xì)介紹了Java實(shí)現(xiàn)簡(jiǎn)單的飛機(jī)大戰(zhàn)游戲，敵機(jī)下落篇，文中示例代碼介紹的非常詳細(xì)，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了Java實(shí)現(xiàn)簡(jiǎn)單飛機(jī)大戰(zhàn)游戲，敵機(jī)下落的具體代碼，供大家參考，具體內(nèi)容如下

在實(shí)現(xiàn)這個(gè)游戲之前，我們首先需要知道項(xiàng)目可能要用到哪些知識(shí)點(diǎn)：

重繪，線程，雙緩沖，數(shù)據(jù)結(jié)構(gòu)的應(yīng)用

差不多是這大概有這些，如果不夠的話我們?cè)偌印?br />首先，我們應(yīng)該實(shí)現(xiàn)敵機(jī)下落，在這里大概思路和利用線程使小球下落差不多。不同的是，我在這里用到了三種敵機(jī)，分別為小、大、BOSS機(jī)三種。然后給予這三種敵機(jī)不同的下落規(guī)則（即速度、出現(xiàn)的時(shí)間、是否伴隨子彈的發(fā)射等等）來(lái)給游戲適當(dāng)?shù)脑黾狱c(diǎn)難度。

以下是我的大概設(shè)計(jì)思路和下落規(guī)則，大家可以參考一下

1.飛機(jī)是在一開(kāi)始的時(shí)候就出現(xiàn)的,先出現(xiàn)什么飛機(jī)?速度?什么位置出現(xiàn)?頻率?

先出小飛機(jī),再出大飛機(jī),當(dāng)所有的大小飛機(jī)都消失以后出現(xiàn)BOSS機(jī).
小飛機(jī)的速度較快:8 大飛機(jī)的速度較慢:4 BOSS機(jī)的速度最慢:2
頻率:每隔1秒出現(xiàn)一架小飛機(jī),每出現(xiàn)4架小飛機(jī)后出現(xiàn)一架大飛機(jī),最后出現(xiàn)BOSS機(jī).
位置:在窗體的范圍內(nèi),考慮到png圖片的高度和寬度,所以出現(xiàn)的時(shí)候注意減去相應(yīng)的高度和寬度.

2.小飛機(jī),大飛機(jī),BOSS機(jī)需要使用不同的vector類來(lái)保存,取出的時(shí)候再使用一個(gè)vector類來(lái)保存(保存的時(shí)候應(yīng)該將三個(gè)vector類中原來(lái)的飛機(jī)移除).再將保存起來(lái)的飛機(jī)依次進(jìn)行畫出.當(dāng)出現(xiàn)4架小飛機(jī)的時(shí)候就出現(xiàn)一架大飛機(jī)，當(dāng)小飛機(jī)和大飛機(jī)都出現(xiàn)完了以后,出現(xiàn)BOSS機(jī).注意:大飛機(jī)和BOSS機(jī)的時(shí)候伴隨著子彈的發(fā)出.

3.子彈:

子彈在大飛機(jī)和BOSS機(jī)出現(xiàn)的時(shí)候出現(xiàn).且速度優(yōu)于大飛機(jī)和BOSS機(jī).因?yàn)樾★w機(jī)沒(méi)有子彈，在這里我們利用byte標(biāo)記來(lái)區(qū)別于小飛機(jī)和其他兩種飛機(jī)，另外也需要將子彈標(biāo)記，以防止子彈生成子彈。

4.使用兩個(gè)線程:

(1)一個(gè)線程用來(lái)實(shí)現(xiàn)將不同的vector向量取出的飛機(jī)(先將大小飛機(jī)取出以后,再取出BOSS機(jī),每取一次小飛機(jī)的時(shí)候?qū)ount記一次數(shù),當(dāng)count==4的時(shí)候,取出一架大飛機(jī).當(dāng)小飛機(jī)和大飛機(jī)全部取完以后再取出BOSS機(jī)),并保存在一個(gè)統(tǒng)一的vector向量中.

(2)另一個(gè)線程用來(lái)實(shí)現(xiàn)畫飛機(jī)和子彈并使其移動(dòng).

5.效果圖出現(xiàn)過(guò)于閃爍的情況可以利用雙緩沖技術(shù)來(lái)減少閃爍。

以下是代碼主類，主要生成窗體和敵機(jī)，并將敵機(jī)保存在不同的vector向量中。

public class BallMain {

?? ?public Graphics g;
?? ?public Vector<Ball> vector, minVector, maxVector, bossVector;
?? ?public ImageIcon img;

?? ?public static void main(String[] args) {
?? ??? ?BallMain bm = new BallMain();
?? ??? ?bm.init();

?? ?}

?? ?public void init() {
?? ??? ?JFrame frame = new JFrame();
?? ??? ?frame.setTitle("飛機(jī)大戰(zhàn)");
?? ??? ?frame.setSize(800, 800);
?? ??? ?frame.setDefaultCloseOperation(3);
?? ??? ?frame.setLocationRelativeTo(null);
?? ??? ?frame.setBackground(Color.white);
?? ??? ?frame.setResizable(false); // 不允許改變窗體大小

?? ??? ?frame.setVisible(true);

?? ??? ?this.g = frame.getGraphics();

?? ??? ?minVector = new Vector<Ball>();
?? ??? ?maxVector = new Vector<Ball>();
?? ??? ?bossVector = new Vector<Ball>();
?? ??? ?vector = new Vector<Ball>();

?? ??? ?initPlane(frame);

?? ??? ?BallThread bt = new BallThread(vector, minVector, maxVector,
?? ??? ??? ??? ?bossVector, frame);
?? ??? ?bt.start();

?? ??? ?BallGraThread bll = new BallGraThread(vector, frame,
?? ??? ??? ??? ?frame.getGraphics());
?? ??? ?bll.start();
?? ?}

?? ?public void initPlane(JFrame frame) {
?? ??? ?Random rand = new Random();
?? ??? ?// 小飛機(jī)的生成
?? ??? ?for (int i = 0; i < 8; i++) {
?? ??? ??? ?ImageIcon icon = new ImageIcon("plane/plane0.png");
?? ??? ??? ?int r = icon.getIconWidth() / 2;
?? ??? ??? ?int x = rand.nextInt(frame.getWidth() - icon.getIconWidth()) + r;
?? ??? ??? ?int y = -icon.getIconHeight();
?? ??? ??? ?int vy = 8;
?? ??? ??? ?Ball b = new Ball(icon.getImage(), x, y, r, vy, (byte) 1);
?? ??? ??? ?minVector.add(b);
?? ??? ?}
?? ??? ?// 大飛機(jī)的生成
?? ??? ?for (int i = 0; i < 2; i++) {
?? ??? ??? ?ImageIcon icon = new ImageIcon("plane/plane1.png");
?? ??? ??? ?int r = icon.getIconWidth() / 2;
?? ??? ??? ?int x = rand.nextInt(frame.getWidth() - icon.getIconWidth()) + r;
?? ??? ??? ?int y = -icon.getIconHeight();
?? ??? ??? ?int vy = 4;

?? ??? ??? ?Ball b = new Ball(icon.getImage(), x, y, r, vy, (byte) 2);
?? ??? ??? ?maxVector.add(b);
?? ??? ?}
?? ??? ?// Boss機(jī)的生成
?? ??? ?ImageIcon icon = new ImageIcon("plane/plane2.png");
?? ??? ?int r = icon.getIconWidth() / 2;
?? ??? ?int x = rand.nextInt(frame.getWidth() - icon.getIconWidth()) + r;
?? ??? ?int y = -icon.getIconHeight();
?? ??? ?int vy = 2;
?? ??? ?Ball b = new Ball(icon.getImage(), x, y, r, vy, (byte) 3);
?? ??? ?bossVector.add(b);
?? ?}
}

以下為飛機(jī)的下落規(guī)則：

public BallThread(Vector<Ball> vector, Vector<Ball> minVector,
?? ??? ??? ?Vector<Ball> maxVector, Vector<Ball> bossVector, JFrame frame) {
?? ??? ?this.vector = vector;
?? ??? ?this.minVector = minVector;
?? ??? ?this.maxVector = maxVector;
?? ??? ?this.bossVector = bossVector;

?? ??? ?this.frame = frame;
?? ?}

?? ?public void run() {
?? ??? ?int count = 0;
?? ??? ?while (true) {
?? ??? ??? ?if (minVector.size() > 0) {
?? ??? ??? ??? ?vector.add(minVector.remove(0));
?? ??? ??? ??? ?++count;
?? ??? ??? ??? ?if (count == 4) {
?? ??? ??? ??? ??? ?if (maxVector.size() > 0) {
?? ??? ??? ??? ??? ??? ?vector.add(maxVector.remove(0));
?? ??? ??? ??? ??? ??? ?count = 0;
?? ??? ??? ??? ??? ?}
?? ??? ??? ??? ?}
?? ??? ??? ?}
?? ??? ??? ?if (vector.size() == 0) {
?? ??? ??? ??? ?vector.add(bossVector.remove(0));
?? ??? ??? ??? ?break;
?? ??? ??? ?}
?? ??? ??? ?try {
?? ??? ??? ??? ?Thread.sleep(1000);
?? ??? ??? ?} catch (InterruptedException e) {
?? ??? ??? ??? ?e.printStackTrace();
?? ??? ??? ?}
?? ??? ?}
?? ?}
}

利用雙緩沖減少閃爍，畫出飛機(jī)并擦除，使其不斷更新位置：

public class BallGraThread extends Thread {

?? ?public Vector<Ball> vector;
?? ?public JFrame frame;
?? ?public Graphics g;
?? ?public BufferedImage image;
?? ?public Graphics ig;

?? ?public BallGraThread(Vector<Ball> vector, JFrame frame, Graphics g) {
?? ??? ?this.vector = vector;
?? ??? ?this.frame = frame;
?? ??? ?this.g = g;
?? ?}

?? ?public void run() {
?? ??? ?if (image == null) {
?? ??? ??? ?
?? ??? ??? ?//創(chuàng)建一個(gè)帶透明色的BufferedImage對(duì)象
?? ??? ??? ?image = new BufferedImage(frame.getWidth(), frame.getHeight(),
?? ??? ??? ??? ??? ?BufferedImage.TYPE_INT_ARGB);
?? ??? ??? ?//獲取畫筆對(duì)象.
?? ??? ??? ?ig = image.getGraphics();
?? ??? ?}
?? ??? ?while (true) {
?? ??? ??? ?//擦除.
?? ??? ??? ?ig.setColor(frame.getContentPane().getBackground());
?? ??? ??? ?ig.fillRect(0, 0, frame.getWidth(), frame.getHeight());

?? ??? ??? ?for (int i = 0; i < vector.size(); i++) {
?? ??? ??? ??? ?Ball ball = vector.get(i);
?? ??? ??? ??? ?ball.draw(ig);
?? ??? ??? ??? ?ball.move(vector, frame, ig);
?? ??? ??? ?}

?? ??? ??? ?g.drawImage(image, 0, 0, frame);

?? ??? ??? ?try {
?? ??? ??? ??? ?Thread.sleep(100);
?? ??? ??? ?} catch (InterruptedException e) {
?? ??? ??? ??? ?e.printStackTrace();
?? ??? ??? ?}

?? ??? ?}
?? ?}
}

子彈類，標(biāo)記子彈來(lái)區(qū)分三種敵機(jī)，當(dāng)飛機(jī)和子彈飛出窗體外后將其移除與vector：

public class Ball {
?? ?public int x, y;
?? ?public int flag = 1;
?? ?public Color color;
?? ?public Image img;
?? ?public BulletThread ba;
?? ?int r;
?? ?int vy;
?? ?byte type;
?? ?Random random = new Random();

?? ?public Ball(Image img, int x, int y, int r, int vy, byte type) {
?? ??? ?this.img = img;
?? ??? ?this.x = x;
?? ??? ?this.y = y;
?? ??? ?this.r = r;
?? ??? ?this.vy = vy;
?? ??? ?this.type = type;
?? ?}

?? ?public void move(Vector<Ball> vector, JFrame frame, Graphics g) {
?? ??? ?if (y >= 0 && flag == 1) {
?? ??? ??? ?// 如果是大飛機(jī)或者BOSS機(jī)的話,就發(fā)射子彈.
?? ??? ??? ?if (type == 2 || type == 3) {
?? ??? ??? ??? ?ba = new BulletThread(vector, this);
?? ??? ??? ??? ?ba.start();
?? ??? ??? ??? ?flag = 2;
?? ??? ??? ??? ?System.out.println(ba);
?? ??? ??? ?}
?? ??? ?}

?? ??? ?if (y >= frame.getHeight()) {
?? ??? ??? ?img = new ImageIcon("planne/bullet.png").getImage();
?? ??? ??? ?g.drawImage(img, x, y, 2 * r, 2 * r, null);
?? ??? ??? ?System.out.println(ba);
?? ??? ??? ?if (type == 2 || type == 3)
?? ??? ??? ??? ?ba.stopFlag = false;
?? ??? ??? ?vector.remove(this);
?? ??? ?}
?? ??? ?y = y + vy;
?? ?}

?? ?public void draw(Graphics g) {
?? ??? ?// 需要將ImageIcon轉(zhuǎn)為Image類型的.
?? ??? ?g.drawImage(img, x, y, 2 * r, 2 * r, null);

?? ?}

}

畫出子彈并添加于vector向量中，使其移動(dòng)：

public class BulletThread extends Thread {
?? ?public Vector<Ball> vector;
?? ?public Ball ball;// 大飛機(jī)的數(shù)據(jù)來(lái)生成子彈
?? ?public boolean stopFlag = true;
?? ?public boolean pauseFlag = true;

?? ?public BulletThread(Vector<Ball> vector, Ball ball) {
?? ??? ?this.vector = vector;
?? ??? ?this.ball = ball;
?? ?}

?? ?public void run() {
?? ??? ?while (stopFlag) {
?? ??? ??? ?if (pauseFlag) {
?? ??? ??? ??? ?int x = ball.x + ball.r;
?? ??? ??? ??? ?int y = ball.y + 2 * ball.r;
?? ??? ??? ??? ?int r = 20;
?? ??? ??? ??? ?Image img = new ImageIcon("plane/bullet.png").getImage();
?? ??? ??? ??? ?int vy = ball.vy + 4;
?? ??? ??? ??? ?Ball bullet = new Ball(img, x, y, r, vy, (byte) 0);
?? ??? ??? ??? ?vector.add(bullet);
?? ??? ??? ?}
?? ??? ??? ?try {
?? ??? ??? ??? ?Thread.sleep(4000);
?? ??? ??? ?} catch (InterruptedException e) {
?? ??? ??? ??? ?e.printStackTrace();
?? ??? ??? ?}
?? ??? ?}
?? ?}
}

以上差不多就是敵機(jī)的下落，其他的一些功能尚未完善，比如可以給敵機(jī)添加不同的血量再來(lái)增加難度，大家可以根據(jù)自己的發(fā)揮來(lái)寫出屬于自己的飛機(jī)大戰(zhàn)游戲。

希望這篇文章對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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