/*
 * Author: Dr. Chris Taylor
 * Date: 01/16/2009
 */

package class8_2_PinballStrategy_start;

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

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;
import javax.sound.sampled.UnsupportedAudioFileException;

/**
 * Loads and plays a .wav file.
 * @version 1.1 12/19/2009
 * @author t a y l o r@msoe.edu
 */
public class WavPlayer {

	/**
	 * The size of the audio buffer.
	 */
	private static final int BUFFER_SIZE = 64000;
	
	/**
	 * The location of the .wav file..
	 */
	private String filename;
	
	/**
	 * Creates a WavPlayer object
	 * @param filename Name of the .wav file
	 */
	public WavPlayer(String filename) {
		this.filename = filename;
	}
	
	/**
	 * Opens, reads, and plays the .wav file.
	 */
	public void play() {
		try {
			File soundFile = new File(filename);
			AudioInputStream audioIS = AudioSystem.getAudioInputStream(soundFile);
			DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, audioIS.getFormat());
			if(AudioSystem.isLineSupported(dataLineInfo)) {
				SourceDataLine line = (SourceDataLine)AudioSystem.getLine(dataLineInfo);
				line.open(audioIS.getFormat());
				line.start();
				byte[] buffer = new byte[BUFFER_SIZE];
				int bytesRead = 0;
				int offset = 0;
				while(bytesRead != -1) {
					bytesRead = audioIS.read(buffer);
					if(bytesRead>0) {
						line.write(buffer, offset, bytesRead);
					}
				}
				line.drain();
				line.close();
			}
		} catch (UnsupportedAudioFileException e) {
			System.err.println("Encountered an audio file with the incorrect format.\n" + e.getMessage());
		} catch (LineUnavailableException e) {
			System.err.println("Encountered a problem accessing the audio system.\n" + e.getMessage());
		} catch (IOException e) {
			System.err.println("Encountered a problem accessing the audio file.\n" + e.getMessage());
		}

	}
}