源码

java – 如何停止音乐剪辑?


我正在和一些同学一起玩游戏,我们已经编写了除了音乐之外的所有内容. music.java类发布在下面.

我们在停止声音方面遇到了问题,因此我需要一种方法来停止播放这个片段,这样我们才能真正开始播放另一个片段,这样我们就可以在游戏过程中转换音乐(比如当你开始游戏时,这首歌应该是不同的从主菜单).

即使我可以摧毁对象来创建一个新对象,如果这是可能的,我愿意这样做,但我不知道如何做到这一点.我宁愿有可能停止当前的剪辑文件,并用新的替换它.

package sound;

import java.io.File;
import java.io.IOException;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;


public class Music implements LineListener, Runnable
{

private File soundFile;
private Thread thread;
private static Music player;
private Music audio;
private Clip clip;
private boolean stoppen = false;

/**
* Private because of the singleton
*/
public Music()
{
}

/**
* Play a siren sound
*/
public void playSiren(String musicFileName)
{
    audio = getPlayer();

    audio.playSirenFile(musicFileName);
}

/**
* Play the siren file
*/
private void playSirenFile(String musicFileName)
{
    this.soundFile = new File("Music/"+musicFileName+".wav");
    thread = new Thread(this);
    thread.setName("SoundPlayer");
    thread.start();
}

/**
* Invoked when the thread kicks off
*/
public void run()
{
    try
    {
        AudioInputStream stream =     AudioSystem.getAudioInputStream(this.soundFile);
        AudioFormat format = stream.getFormat();

/**
* we can't yet open the device for ALAW/ULAW playback, convert
* ALAW/ULAW to PCM
*/
            if ((format.getEncoding() == AudioFormat.Encoding.ULAW) ||    (format.getEncoding() == AudioFormat.Encoding.ALAW))
            {
            AudioFormat tmp = new AudioFormat(
                AudioFormat.Encoding.PCM_SIGNED,
            format.getSampleRate(),
            format.getSampleSizeInBits() * 2, format.getChannels(),
            format.getFrameSize() * 2, format.getFrameRate(), true);
            stream = AudioSystem.getAudioInputStream(tmp, stream);
            format = tmp;
        }
        DataLine.Info info = new DataLine.Info(Clip.class, stream
        .getFormat(), ((int) stream.getFrameLength() * format
        .getFrameSize()));

        this.clip = (Clip) AudioSystem.getLine(info);
        this.clip.addLineListener(this);
        this.clip.open(stream);
        this.clip.start();
        try
        {
            thread.sleep(99);
        }
        catch (Exception e)
        {
        }
        while (clip.isActive() && thread != null)
        {
            try
            {
                thread.sleep(99);
            }
            catch (Exception e)
            {
                break;
            }
        }
        clip.loop(999999999);
        clip.drain();


    }
    catch (UnsupportedAudioFileException e)
    {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
    catch (IOException e)
    {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
    catch (LineUnavailableException e)
    {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
}

private static Music getPlayer()
{
    if (player == null)
    {
        player = new Music();
    }
    return player;
}

public void update(LineEvent event)
{
}

public void stopClip()
{
    //TODO NEED HELP HERE
}

public void startClip()
{
    //TODO need help here
}
public void volume(float volume)
{

    //TODO NEED HELP HERE
    /*
    FloatControl gainControl = (FloatControl) clip.getControl(FloatControl.Type.MASTER_GAIN);
    gainControl.setValue(-50.0f); // Reduce volume IN DECIBELS
    clip.start();
        */
    }
}

在我的GuiController中,我创建了一个新的Music对象,通过playSiren方法我给出了我的歌名,然后它会自动运行.

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本文由 投稿者 创作,文章地址:https://blog.isoyu.com/archives/java-ruhetingzhiyinlejianji.html
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