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Java練習(xí)之潛艇小游戲的實(shí)現(xiàn)

 更新時(shí)間：2022年03月15日 16:27:47   作者：Yinb  
這篇文章主要和大家分享一個(gè)Java小練習(xí)——利用Java編寫一個(gè)潛艇小游戲，文中的示例代碼講解詳細(xì)，感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下

首先是主方法里定義的窗口（這些都是固定的格式，不會(huì)的也沒(méi)什么事，直接Ctrl+c+v就行，基本上看一下數(shù)據(jù)都能看的懂）

寫一個(gè)超類，超類里需要有潛艇，深水炸彈，水雷和戰(zhàn)艦的寬，高，以及出場(chǎng)時(shí)的x，y坐標(biāo)，和移動(dòng)速度。所有對(duì)象的圖片，所有對(duì)象的移動(dòng)方法，以及碰撞

然后再寫派生類，根據(jù)擊敗一個(gè)水雷潛艇，戰(zhàn)艦會(huì)獲得一條命，擊敗其他潛艇，戰(zhàn)艦會(huì)獲得分?jǐn)?shù)，所以，需要定義兩個(gè)接口，一個(gè)是用來(lái)加命，另一個(gè)用來(lái)加分

完整代碼如下（圖片什么的可以自己去找，只需要改一下Image類和各個(gè)對(duì)象的寬高就可以）

游戲世界World類

package cn.tedu.sunarine;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Graphics;
import java.util.Arrays;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
//整個(gè)游戲世界
public class World extends JPanel {
    public static final int WIDTH = 641;
    public static final int HEIGHT = 479;
 
 
    public static final int RUNNING =0;
    public static final int GAME_OVER=1;
    private int state = RUNNING;
 
    //窗口所顯示的對(duì)象
    private Battleship ship = new Battleship(); //戰(zhàn)艦
    private SeaObject[] submarines = {}; //潛艇(偵察潛艇、魚雷潛艇、水雷潛艇)
    private Mine[] mines = {}; //水雷
    private Bomb[] bombs = {}; //深水炸彈
 
 
    //隨機(jī)生成潛艇
    public SeaObject nextSubmarine(){
        Random rand = new Random();
        int type = rand.nextInt(30);
        if(type<10){
            return new ObserveSubmarine();
        }else if(type<15){
            return new TorpedoSubmarine();
        }else{
            return new MineSubmarine();
        }
    }
 
    private int subEnterIndex = 0;
    //潛艇入場(chǎng)
    public void submarineEnterAction(){ //每10毫秒走一次
        subEnterIndex++;
        if(subEnterIndex%40==0){ //每40毫秒
            SeaObject obj = nextSubmarine();
            submarines = Arrays.copyOf(submarines,submarines.length+1);
            submarines[submarines.length-1] = obj;
        }
    }
 
    private int mineEnterIndex = 0;
    //魚雷，水雷入場(chǎng)
    public void MineEnterAction(){
        mineEnterIndex++;
        if(mineEnterIndex%100==0){
            for (int i=0;i<submarines.length;i++){
                if (submarines[i] instanceof  MineSubmarine){
                    if (submarines[i].isLIVE()) {
                        MineSubmarine ms = (MineSubmarine) submarines[i];
                        Mine obj = ms.shootMine();
                        mines = Arrays.copyOf(mines, mines.length + 1);
                        mines[mines.length - 1] = obj;
                    }
                }
            }
        }
    }
 
    public void gameOver(){
        if (ship.getLife()<=0){
            state = GAME_OVER;
        }
    }
 
    //海洋對(duì)象移動(dòng)
    public void moveAction(){
        for(int i=0;i<submarines.length;i++){
            submarines[i].move();
        }
        for(int i=0;i<mines.length;i++){
            mines[i].move();
        }
        for(int i=0;i<bombs.length;i++){
            bombs[i].move();
        }
    }
 
    //刪除越界對(duì)象
    public void outOfBoundsAction(){
        for(int i=0;i<submarines.length;i++){
            if(submarines[i].isOutOfBounds()){
                submarines[i] = submarines[submarines.length-1];
                submarines = Arrays.copyOf(submarines,submarines.length-1);
            }
        }
 
        for(int i=0;i<mines.length;i++){
            if(mines[i].isOutOfBounds()){
                mines[i] = mines[mines.length-1];
                mines = Arrays.copyOf(mines,mines.length-1);
            }
        }
 
        for(int i=0;i<bombs.length;i++){
            if(bombs[i].isOutOfBounds()){
                bombs[i] = bombs[bombs.length-1];
                bombs = Arrays.copyOf(bombs,bombs.length-1);
            }
        }
    }
 
    private  int score = 0;
 
    public void BombsBangAction(){
//深水炸彈炸潛艇
        for (int i=0;i<bombs.length;i++){
            Bomb b =bombs[i];
            for (int j=0;j<submarines.length;j++){
                SeaObject s = submarines[j];
                if (b.isLIVE()&& s.isLIVE()&&s.isHit(b)){
                    b.goDead();
                    s.goDead();
                    if (s instanceof EnemyScore){
                        EnemyScore es = (EnemyScore) s;
                        score += es.getScore();
                    }
                    if (s instanceof EnemyLife){
                        EnemyLife ea = (EnemyLife) s;
                        int num = ea.getLife();
                        ship.addLife(num);
                    }
 
                }
            }
        }
    }
 
    public void mineBangAction(){
        for (int i=0;i<mines.length;i++){
            Mine m= mines[i];
            if (m.isLIVE()&& ship.isLIVE()&&m.isHit(ship)){
                m.goDead();
                ship.subtratLife();
            }
        }
    }
 
 
    /** 啟動(dòng)程序的運(yùn)行 */
    public void action(){
        KeyAdapter k = new KeyAdapter(){
 
            public void keyPressed(KeyEvent e) {
                if(e.getKeyCode() == KeyEvent.VK_SPACE){
                    Bomb obj = ship.shoot(); //深水炸彈入場(chǎng)
                    bombs = Arrays.copyOf(bombs,bombs.length+1);
                    bombs[bombs.length-1] = obj;
                }
                if(e.getKeyCode() == KeyEvent.VK_LEFT){
                    ship.moveLeft();
                }
                if(e.getKeyCode() == KeyEvent.VK_RIGHT){
                    ship.moveRight();
                }
            }
        };
        this.addKeyListener(k);
 
        Timer timer = new Timer();
        int interval = 10;
        timer.schedule(new TimerTask() {
            public void run() {
                submarineEnterAction(); //潛艇(偵察、水雷、魚雷)入場(chǎng)
                MineEnterAction();      //水雷入場(chǎng)
                moveAction();           //海洋對(duì)象移動(dòng)
                BombsBangAction();      //深水炸彈和潛艇碰撞
                mineBangAction();       //水雷和戰(zhàn)艦碰撞
                outOfBoundsAction();    //刪除越界的對(duì)象
                gameOver();
                repaint();
            }
        }, interval, interval);
    }
 
    public void paint (Graphics g ){
        switch (state) {
            case GAME_OVER:
                Images.gameover.paintIcon(null,g,0,0);
                break;
            case RUNNING:
            Images.sea.paintIcon(null, g, 0, 0);
            ship.paintImage(g);
            for (int i = 0; i < submarines.length; i++) {
                submarines[i].paintImage(g);
            }
            for (int i = 0; i < mines.length; i++) {
                mines[i].paintImage(g);
            }
            for (int i = 0; i < bombs.length; i++) {
                bombs[i].paintImage(g);
            }
            g.drawString("SCORE" + score, 200, 50);
            g.drawString("LIFE" + ship.getLife(), 400, 50);
        }
    }
 
 
 
 
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        World world = new World();
        world.setFocusable(true);
        frame.add(world);
        frame.setResizable(false);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(WIDTH, HEIGHT+19);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
        world.action();
    }
}

定義一個(gè)SeaObject的類當(dāng)作超類（父類），然后再寫其他的派生類（子類）

package cn.tedu.sunarine;
 
import javax.swing.ImageIcon;
import java.awt.Graphics;
import java.util.Random;
 
public abstract class SeaObject {
 
    public static final int LIVE = 0;
    public static final int DEAD = 1;
    protected int state=LIVE;
 
    protected int width;
    protected int height;
    protected int x;
    protected int y;
    protected int speed;
 
    //三個(gè)潛艇
    public SeaObject(int width, int height) {
        this.width = width;
        this.height = height;
        x =-width;
        Random rand = new Random();
        y = rand.nextInt(497 - height - 150 + 1) + 150;
        speed = rand.nextInt(3) + 1;
    }
//水雷，戰(zhàn)艦，炸彈
    public SeaObject(int width, int height, int x, int y, int speed) {
        this.width = width;
        this.height = height;
        this.x = x;
        this.y = y;
        this.speed = speed;
    }
 
    public abstract void move();
 
    public abstract ImageIcon getImage();
 
    public boolean isLIVE(){
        return state ==LIVE;
    }
    public void paintImage(Graphics g){
        if (isLIVE()){
            this.getImage().paintIcon(null,g,this.x,this.y);
        }
    }
    public boolean isOutOfBounds(){
        return x>=World.WIDTH;
    }
    public boolean isHit(SeaObject other){
        int x1 = this.x-other.width;
        int x2 = this.x+this.width;
        int y1 = this.y-other.height;
        int y2 = this.y+this.height;
        int x=other.x;
        int y=other.y;
        return x>=x1 && x<=x2 && y>=y1 && y<=y2;
    }
 
    public void goDead(){
        state =DEAD;
    }
}

在派生類的引用超類

魚雷潛艇類

package cn.tedu.sunarine;
import javax.swing.ImageIcon；
 
//魚雷潛艇
public class TorpedoSubmarine extends SeaObject implements EnemyScore{
    TorpedoSubmarine(){
        super(64,20);
    }
 
    @Override
    public void move() {
        x+=speed;
    }
    public ImageIcon getImage(){
        return Images.torpedo;
    }
    public boolean isOutOfBounds() {
        return x>=World.WIDTH;
    }
    public int getScore(){
        return 20;
    }
}

水雷潛艇類

package cn.tedu.sunarine;
import javax.swing.ImageIcon;
 
//水雷潛艇
public class MineSubmarine extends SeaObject implements EnemyScore{
    MineSubmarine(){
       super(63,19);
    }
 
    @Override
    public void move() {
        x+=speed;
    }
    public ImageIcon getImage(){
        return Images.minesubm;
    }
    public Mine shootMine(){
        int x = this.x+(this.width/2);
        int y =this.y;
        return new Mine(x,y);
    }
    public boolean isOutOfBounds() {
        return x>=World.WIDTH;
    }
    public int getLife(){
        return 1;
    }
}

偵察潛艇類

package cn.tedu.sunarine;
import javax.swing.ImageIcon;
 
//偵察潛艇
public class ObserveSubmarine extends SeaObject implements EnemyScore{
    ObserveSubmarine(){
        super(63,19);
    }
 
    @Override
    public void move() {
        x+=speed;
    }
    public ImageIcon getImage(){
        return Images.observesubm;
    }
    public boolean isOutOfBounds() {
        return x>=World.WIDTH;
    }
    public int getScore(){
        return 10;
    }
}

魚雷類

package cn.tedu.sunarine;
//魚雷
import javax.swing.ImageIcon;
public class Mine extends SeaObject{
        Mine(int x,int y){
            super(11,11,x,y,1);
        }
 
    @Override
    public void move() {
        y-=speed;
    }
 
    public ImageIcon getImage(){
            return Images.mine;
    }
    public boolean isOutOfBounds(){
            return y<=150-(height/2);
    }
}

深水炸彈類

package cn.tedu.sunarine;
//深水炸彈
import javax.swing.ImageIcon;
public class Bomb extends SeaObject{
    Bomb(int x,int y){
        super(9,12,x,y,3);
    }
 
    @Override
    public void move() {
        y+=speed;
    }
    public ImageIcon getImage(){
        return Images.bomb;
    }
    public boolean isOutOfBounds(){
        return y>=World.HEIGHT;
    }
}

戰(zhàn)艦類

package cn.tedu.sunarine;
 
import javax.swing.*;
 
//戰(zhàn)艦
public class Battleship extends SeaObject{
    int life;
    Battleship(){
       super(66,26,270,124,20);
       life=1;
    }
 
    @Override
    public void move() {
        System.out.println("戰(zhàn)艦移動(dòng)");
    }
    public ImageIcon getImage(){
        return Images.battleship;
    }
    public Bomb shoot(){
        return new Bomb(this.x,this.y+height);
    }
    //限制移動(dòng)范圍
    public void moveLeft(){
        x-=speed;
        x=Math.max(0,x);
    }
    public void moveRight(){
        x+=speed;
        x=Math.min(x,World.WIDTH-this.width);
    }
    public void addLife(int num){
        life+=num;
    }
    public int getLife(){
        return life;
    }
    public void subtratLife(){
        life--;
    }
}

加命接口

package cn.tedu.sunarine;
 
public interface EnemyLife {
    public int getLife();
}

加分接口

package cn.tedu.sunarine;
 
public interface EnemyScore {
    public int getScore();
}

最后，Image類（可根據(jù)自己的圖片改）

package cn.tedu.sunarine;
import javax.swing.*;
public class Images {
    public static ImageIcon battleship;
    public static ImageIcon observesubm;
    public static ImageIcon mine;
    public static ImageIcon bomb;
    public static ImageIcon sea;
    public static ImageIcon torpedo;
    public static ImageIcon minesubm;
    public static ImageIcon gameover;
    static {
        battleship = new ImageIcon("./img/battleship.png");
        bomb = new ImageIcon("./img/bomb.png");
        gameover = new ImageIcon("./img/gameover.png");
        mine = new ImageIcon("./img/mine.png");
        minesubm = new ImageIcon("./img/minesubm.png");
        observesubm = new ImageIcon("./img/obsersubm.png");
        sea = new ImageIcon("./img/sea.png");
        torpedo = new ImageIcon("./img/torpesubm.png");
    }
 
    public static void main(String[] args) {
        System.out.println(battleship.getImageLoadStatus());
        System.out.println(observesubm.getImageLoadStatus());
        System.out.println(mine.getImageLoadStatus());
        System.out.println(battleship.getImageLoadStatus());
        System.out.println(bomb.getImageLoadStatus());
        System.out.println(gameover.getImageLoadStatus());
        System.out.println(minesubm.getImageLoadStatus());
        System.out.println(sea.getImageLoadStatus());
    }
}

以上就是Java練習(xí)之潛艇小游戲的實(shí)現(xiàn)的詳細(xì)內(nèi)容，更多關(guān)于Java潛艇游戲的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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