java音乐播放器暂停_Java 1.3音乐播放器 - 如何停止播放中断

嗨，我正在尝试编辑此代码，但不知道从哪里开始 . 我不是程序员，它是我试图修改的传统游戏的公共源代码 . 你能建议至少我需要看的区域，以便我能读懂吗？我想要实现的是：

现在的情况：

当音乐从文件夹播放(由PATH或RAND指定)然后输入FILE命令指定要播放的另一个声音文件时，播放会立即切换到新的声音文件，但随后继续循环播放该声音文件

期望的情况：

FILE命令切换到播放一次的新声音文件，然后将PATH重置为FILE命令之前的路径，即原始音乐恢复

我有一个包含大量音乐的文件夹，我想像广播电台一样播放，但是当某个事件发生时我想要播放另一个声音文件，然后返回广播电台

这是用Java 1.3编写的，解决方案需要与jdk1.3.1_20一起编译 . 如果您需要更多信息，请告诉我？

即使只是暗示它是不可能的或困难的也会很棒 . 提前致谢！

public class CmdMusic extends Cmd

{

static class PlayInfo

{

public String objName;

public boolean isPath;

public String list[];

public PlayInfo(String s, boolean flag)

{

objName = s;

isPath = flag;

list = null;

}

public PlayInfo(String as[])

{

objName = null;

isPath = false;

list = as;

}

}

static class WFileFilter

implements FileFilter

{

public boolean accept(File file)

{

if(!file.isFile() || file.isHidden())

return false;

String s = file.getName();

if(s == null)

return false;

int i = s.length();

if(i faderIncr)

{

fader -= faderIncr;

prevMusic.setVolume(fader);

} else

{

prevMusic.cancel();

prevMusic.release();

prevMusic = null;

}

if(list != null)

{

if(curMusic != null && !curMusic.isPlaying() && playState())

{

curMusic.cancel();

curMusic.release();

curMusic = null;

}

if(curMusic == null && playState())

{

index++;

if(index >= list.length)

index = 0;

fileName = null;

setFile(list[index], true);

}

}

}

public static boolean isPathEnabled(String s)

{

byte byte0 = -1;

if(s == null)

return true;

if(s.compareToIgnoreCase("music/takeoff") == 0)

byte0 = 0;

else

if(s.compareToIgnoreCase("music/inflight") == 0)

byte0 = 1;

else

if(s.compareToIgnoreCase("music/crash") == 0)

byte0 = 2;

else

return true;

SoundFlags soundflags = (SoundFlags)CfgTools.get("MusState");

if(soundflags == null)

return false;

else

return soundflags.get(byte0);

}

public static void setPath(String s, boolean flag)

{

if(s == null)

return;

if(flag && pathRandName != null && s.compareToIgnoreCase(pathRandName) == 0)

return;

File file = new File("./samples/" + s);

File afile[] = file.listFiles(new WFileFilter());

if(afile == null || afile.length 1.0F)

System.out.println("ERROR: value must be between 0.0 - 1.0");

else

setVolume(f);

}

}

}

return CmdEnv.RETURN_OK;

}

private static final boolean _debug = false;

protected static SoundFX musFX = null;

protected static String fileName = null;

protected static String pathRandName = null;

protected static float vol = 1.0F;

protected static Random rnd = new Random();

protected static Stack stack = new Stack();

protected static boolean bPlay = false;

protected static boolean bPlaying = false;

protected static boolean bList = false;

public static final String PATH = "PATH";

public static final String RAND = "RAND";

public static final String FILE = "FILE";

public static final String LIST = "LIST";

public static final String PLAY = "PLAY";

public static final String STOP = "STOP";

public static final String BREAK = "BREAK";

public static final String VOL = "VOL";

public static final String PUSH = "PUSH";

public static final String POP = "POP";

public static final String APPLY = "APPLY";

private static AudioStream prevMusic = null;

private static AudioStream curMusic = null;

private static float faderIncr = 0.02F;

private static float fader = 1.0F;

private static String list[] = null;

private static int index = 0;

}