0

I did sound in a REALLY wierd way, do you think that there may be a way to loop it? cuz it only plays once then stops. Here is code for 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.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;

public class Sound {
private final static int BUFFER_SIZE = 12800000;
private static File soundFile;
private static AudioInputStream audioStream;
private static AudioFormat audioFormat;
private static  SourceDataLine sourceLine;

/**
 * 
 * @param filename the name of the file that is going to be played
 *
 */
public static void playSound(String filename){

    String strFilename = filename;

    try {
        soundFile = new File(strFilename);
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    }

    try {
        audioStream = AudioSystem.getAudioInputStream(soundFile);
    } catch (Exception e){
        e.printStackTrace();
       System.exit(1);
    }

    audioFormat = audioStream.getFormat();

    DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
    try {
        sourceLine = (SourceDataLine) AudioSystem.getLine(info);
        sourceLine.open(audioFormat);
    } catch (LineUnavailableException e) {
        e.printStackTrace();
        System.exit(1);
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    }


    sourceLine.start();

    int nBytesRead = 0;
    byte[] abData = new byte[BUFFER_SIZE];
    while (nBytesRead != -1) {
        try {
            nBytesRead = audioStream.read(abData, 0, abData.length);
        } catch (IOException e) {
            e.printStackTrace();
        }
        if (nBytesRead >= 0) {
            @SuppressWarnings("unused")
            int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
        }
    }

    sourceLine.drain();
    sourceLine.close();
}
}

To activate it i do:

new Thread(new Runnable() {
          public void run() {
            Sound.playSound("hurt.au");
          }
        }).start();

(if i do just Sound.playSound("hurt.au"); the game freezes because the sound plays on the games main thread so i put the sound in it's own thread to save the game from freezing)

So the question is, how do i loop it?

4

1 回答 1

1

您将需要某种测试来查看当前播放的声音是否完成。如果您正在制作游戏，我可能会建议使用一些库以使其更容易。比如slick2d。它具有循环播放声音而不是只播放一次的内置功能。如果您选择不这样做，则必须跟踪线程，并且在每次更新游戏状态时查看声音对象并询问源代码是否已完成播放。如果有则 sourceline.start() 否则无操作。您还可以将线程放在 sound.playsound 方法本身中，从而使您的代码少一些耦合。

http://www.slick2d.org/

我真的建议使用 3rd 方库来让自己更轻松。

于 2013-05-03T01:53:53.297 回答