Java 第二阶段提升编程能力【坦克大战3.0】

代码链接：https://download.csdn.net/download/qq_52354698/86405067?spm=1001.2014.3001.5501

1. 防止敌人坦克重叠运动

    //编写方法判断当前的这个敌人坦克是否和enemyTanks中的其他坦克发生重叠或者碰撞
    public boolean isTouchEnemyTank() {
        switch (this.getDirect()) {
            case 0:
                for (int i = 0; i < enemyTanks.size(); i++) {
                    //从vector中依次取出敌人坦克
                    EnemyTank enemyTank = enemyTanks.get(i);
                    if (enemyTank != this) {
                        if (enemyTank.getDirect() == 0 || enemyTank.getDirect() == 2) {
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 40 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 60) {
                                return true;
                            }
                            if (this.getX() + 40 >= enemyTank.getX() && this.getX() + 40 <= enemyTank.getX() + 40 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 60) {
                                return true;
                            }
                        }
                        if (enemyTank.getDirect() == 1 || enemyTank.getDirect() == 3) {
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 60 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 40) {
                                return true;
                            }
                            if (this.getX() + 40 >= enemyTank.getX() && this.getX() + 40 <= enemyTank.getX() + 60 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 40) {
                                return true;
                            }
                        }
                    }
                }
                break;
            case 1:
                for (int i = 0; i < enemyTanks.size(); i++) {
                    //从vector中依次取出敌人坦克
                    EnemyTank enemyTank = enemyTanks.get(i);
                    if (enemyTank != this) {
                        if (enemyTank.getDirect() == 0 || enemyTank.getDirect() == 2) {
                            if (this.getX() + 60 >= enemyTank.getX() && this.getX() + 60 <= enemyTank.getX() + 40 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 60) {
                                return true;
                            }
                            if (this.getX() + 60 >= enemyTank.getX() && this.getX() + 60 <= enemyTank.getX() + 40 && this.getY() + 40 >= enemyTank.getY() && this.getY() + 40 <= enemyTank.getY() + 60) {
                                return true;
                            }
                        }
                        if (enemyTank.getDirect() == 1 || enemyTank.getDirect() == 3) {
                            if (this.getX() + 60 >= enemyTank.getX() && this.getX() + 60 <= enemyTank.getX() + 60 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 40) {
                                return true;
                            }
                            if (this.getX() + 60 >= enemyTank.getX() && this.getX() + 60 <= enemyTank.getX() + 60 && this.getY() + 40 >= enemyTank.getY() && this.getY() + 40 <= enemyTank.getY() + 40) {
                                return true;
                            }
                        }
                    }
                }
                break;
            case 2:
                for (int i = 0; i < enemyTanks.size(); i++) {
                    //从vector中依次取出敌人坦克
                    EnemyTank enemyTank = enemyTanks.get(i);
                    if (enemyTank != this) {
                        if (enemyTank.getDirect() == 0 || enemyTank.getDirect() == 2) {
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 40 && this.getY() + 60 >= enemyTank.getY() && this.getY() + 60 <= enemyTank.getY() + 60) {
                                return true;
                            }
                            if (this.getX() + 40 >= enemyTank.getX() && this.getX() + 40 <= enemyTank.getX() + 40 && this.getY() + 60 >= enemyTank.getY() && this.getY() + 60 <= enemyTank.getY() + 60) {
                                return true;
                            }
                        }
                        if (enemyTank.getDirect() == 1 || enemyTank.getDirect() == 3) {
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 60 && this.getY() + 60 >= enemyTank.getY() && this.getY() + 60 <= enemyTank.getY() + 40) {
                                return true;
                            }
                            if (this.getX() + 40 >= enemyTank.getX() && this.getX() + 40 <= enemyTank.getX() + 60 && this.getY() + 60 >= enemyTank.getY() && this.getY() + 60 <= enemyTank.getY() + 40) {
                                return true;
                            }
                        }
                    }
                }
                break;
            case 3:
                for (int i = 0; i < enemyTanks.size(); i++) {
                    //从vector中依次取出敌人坦克
                    EnemyTank enemyTank = enemyTanks.get(i);
                    if (enemyTank != this) {
                        if (enemyTank.getDirect() == 0 || enemyTank.getDirect() == 2) {
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 40 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 60) {
                                return true;
                            }
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 40 && this.getY() + 40 >= enemyTank.getY() && this.getY() + 40 <= enemyTank.getY() + 60) {
                                return true;
                            }
                        }
                        if (enemyTank.getDirect() == 1 || enemyTank.getDirect() == 3) {
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 60 && this.getY() >= enemyTank.getY() && this.getY() <= enemyTank.getY() + 40) {
                                return true;
                            }
                            if (this.getX() >= enemyTank.getX() && this.getX() <= enemyTank.getX() + 60 && this.getY() + 40 >= enemyTank.getY() && this.getY() + 40 <= enemyTank.getY() + 40) {
                                return true;
                            }
                        }
                    }
                }
                break;
        }
        return false;
    }
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2. 记录玩家的成绩，存盘退出

记录我方击毁敌方坦克总数

package com.qdu.tankgame;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;

/**
 * @author dell
 * @version 1.0
 * 记录相关的信息，与文件交互
 */
public class Recorder {

    private static int allEnemyTanksNum = 0;
    private static FileWriter fileWriter = null;
    private static BufferedWriter bufferedWriter = null;
    private static String recordFile = "e:\\myRecord.txt";

    //当游戏退出时，将数据保存到文件中
    public static void keepRecord() throws IOException {
        bufferedWriter = new BufferedWriter(new FileWriter(recordFile));
        bufferedWriter.write(allEnemyTanksNum);
        bufferedWriter.close();
    }

    public static int getAllEnemyTanksNum() {
        return allEnemyTanksNum;
    }

    public static void setAllEnemyTanksNum(int allEnemyTanksNum) {
        Recorder.allEnemyTanksNum = allEnemyTanksNum;
    }

    public static void addAllEnemyTankNum() {
        Recorder.allEnemyTanksNum++;
    }
}

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3. 记录当时的敌人坦克坐标，存盘退出

当窗口关闭时，获取到剩余的地方坦克的信息，将其存储到文件中

        for (int i = 0; i < enemyTanks.size(); i++) {
            EnemyTank enemyTank = enemyTanks.get(i);
            if (enemyTank.isLive) {
                String record = enemyTank.getX() + " " + enemyTank.getY() + " " + enemyTank.getDirect();
                bufferedWriter.write(record + "\r\n");
            }
        }
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4. 玩游戏时，可以选择是新开始游戏还是继续上局游戏

在执行程序的时候，提供用户选择：1.开始新游戏，2.继续上局游戏
如继续上局游戏，则从文件中读取上次游戏结束，保存到文件中的敌方坦克的坐标，然后将其绘制在地图上，以到达继续游戏的效果

package com.qdu.tankgame;

/**
 * @author dell
 * @version 1.0
 * 一个Node对象就表示一个敌人坦克的信息
 */
public class Node {

    private int x;
    private int y;
    private int direct;

    public Node(int x, int y, int direct) {
        this.x = x;
        this.y = y;
        this.direct = direct;
    }

    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 getDirect() {
        return direct;
    }

    public void setDirect(int direct) {
        this.direct = direct;
    }
}

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5. 新游戏开始时，播放经典的坦克大战音乐

使用一个播放音乐的类

package com.qdu.tankgame;

import javax.sound.sampled.*;
import java.io.File;
import java.io.IOException;

/**
 * @author dell
 * @version 1.0
 */
public class AePlayWave extends Thread {
    private String filename;

    public AePlayWave(String wavfile) { //构造器 , 指定文件
        filename = wavfile;

    }

    public void run() {

        File soundFile = new File(filename);

        AudioInputStream audioInputStream = null;
        try {
            audioInputStream = AudioSystem.getAudioInputStream(soundFile);
        } catch (Exception e1) {
            e1.printStackTrace();
            return;
        }

        AudioFormat format = audioInputStream.getFormat();
        SourceDataLine auline = null;
        DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);

        try {
            auline = (SourceDataLine) AudioSystem.getLine(info);
            auline.open(format);
        } catch (Exception e) {
            e.printStackTrace();
            return;
        }

        auline.start();
        int nBytesRead = 0;
        //这是缓冲
        byte[] abData = new byte[512];

        try {
            while (nBytesRead != -1) {
                nBytesRead = audioInputStream.read(abData, 0, abData.length);
                if (nBytesRead >= 0)
                    auline.write(abData, 0, nBytesRead);
            }
        } catch (IOException e) {
            e.printStackTrace();
            return;
        } finally {
            auline.drain();
            auline.close();
        }

    }
}
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        new AePlayWave("src\\111.wav").start();
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