waverenderer.java

一个java的免费游戏引擎,里面有文档,和例子

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 

package com.golden.gamedev.engine.audio;

import com.golden.gamedev.engine.BaseAudioRenderer;
import java.io.PrintStream;
import java.net.URL;
import javax.sound.sampled.*;

public class WaveRenderer extends BaseAudioRenderer
    implements LineListener
{

    private Clip c;
    private static boolean d;
    private static boolean e;
    private static Mixer f;
    private static int g = 0;
    static Class a;
    static Class b;

    public WaveRenderer()
    {
        if(g == 0)
        {
            g = 1;
            _cls1 _lcls1;
            (_lcls1 = new _cls1()).setDaemon(true);
            _lcls1.start();
        }
    }

    public boolean isAvailable()
    {
        if(g != 2)
        {
            for(int i = 0; g != 2 && i++ < 50;)
                try
                {
                    Thread.sleep(50L);
                }
                catch(InterruptedException _ex) { }

            if(g != 2)
            {
                g = 2;
                d = false;
            }
        }
        return d;
    }

    protected void playSound(URL url)
    {
        try
        {
            if(c != null)
            {
                c.drain();
                c.close();
            }
            AudioInputStream audioinputstream;
            AudioFormat audioformat;
            if((audioformat = (audioinputstream = AudioSystem.getAudioInputStream(getAudioFile())).getFormat()).getEncoding() == javax.sound.sampled.AudioFormat.Encoding.ULAW || audioformat.getEncoding() == javax.sound.sampled.AudioFormat.Encoding.ALAW)
            {
                AudioFormat audioformat1;
                audioinputstream = AudioSystem.getAudioInputStream(audioformat1 = new AudioFormat(javax.sound.sampled.AudioFormat.Encoding.PCM_SIGNED, audioformat.getSampleRate(), audioformat.getSampleSizeInBits() << 1, audioformat.getChannels(), audioformat.getFrameSize() << 1, audioformat.getFrameRate(), true), audioinputstream);
                audioformat = audioformat1;
            }
            javax.sound.sampled.DataLine.Info info = new javax.sound.sampled.DataLine.Info(b != null ? b : (b = a("javax.sound.sampled.Clip")), audioinputstream.getFormat(), (int)audioinputstream.getFrameLength() * audioformat.getFrameSize());
            if(f != null)
                c = (Clip)f.getLine(info);
            else
                c = (Clip)AudioSystem.getLine(info);
            c.addLineListener(this);
            c.open(audioinputstream);
            c.start();
            if(volume != 1.0F)
                setSoundVolume(volume);
            return;
        }
        catch(Exception exception)
        {
            status = 4;
            System.err.println("ERROR: Can not playing " + getAudioFile() + " caused by: " + exception);
            return;
        }
    }

    protected void replaySound(URL url)
    {
        c.setMicrosecondPosition(0L);
        c.start();
        c.addLineListener(this);
    }

    protected void stopSound()
    {
        c.stop();
        c.setMicrosecondPosition(0L);
        c.removeLineListener(this);
    }

    public void update(LineEvent lineevent)
    {
        if(lineevent.getType() == javax.sound.sampled.LineEvent.Type.STOP)
        {
            status = 3;
            c.stop();
            c.setMicrosecondPosition(0L);
            c.removeLineListener(this);
        }
    }

    protected void setSoundVolume(float f1)
    {
        if(c != null)
        {
            javax.sound.sampled.FloatControl.Type type = javax.sound.sampled.FloatControl.Type.VOLUME;
            ((FloatControl)c.getControl(type)).setValue(f1);
        }
    }

    public boolean isVolumeSupported()
    {
        return e;
    }

    static Class a(String s)
    {
        return Class.forName(s);
        ClassNotFoundException classnotfoundexception;
        classnotfoundexception;
        throw new NoClassDefFoundError(classnotfoundexception.getMessage());
    }

    static boolean b(boolean flag)
    {
        return e = flag;
    }

    static Mixer c(Mixer mixer)
    {
        return f = mixer;
    }

    static boolean d(boolean flag)
    {
        return d = flag;
    }

    static int e(int i)
    {
        return g = i;
    }

}