110 lines
2.7 KiB
Java
110 lines
2.7 KiB
Java
package fr.enssat.BoulderDash.helpers;
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import fr.enssat.BoulderDash.bridges.SoundJLayerBridge;
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import java.io.File;
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import java.io.FilenameFilter;
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import java.util.HashMap;
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/**
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* AudioLoadHelper
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*
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* Manages audio
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*
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* @author Valerian Saliou <valerian@valeriansaliou.name>
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* @since 2015-06-19
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*/
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public class AudioLoadHelper {
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private static String pathToAudioStore = "./res/audio";
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private SoundJLayerBridge musicToPlay;
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private HashMap<String, SoundJLayerBridge> preloadedSounds;
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/**
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* Class constructor
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*/
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public AudioLoadHelper() {
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this.preloadSounds();
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}
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/**
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* Gets music storage path
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*
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* @param musicId Music identifier
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* @return Music path, with file extension
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*/
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private String getMusicPathInAudioStore(String musicId) {
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return AudioLoadHelper.pathToAudioStore + "/music/" + musicId + ".mp3";
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}
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/**
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* Starts game music
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*
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* @param musicId Music identifier
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*/
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public void startMusic(String musicId) {
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if(this.musicToPlay != null) {
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this.stopMusic();
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}
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this.musicToPlay = new SoundJLayerBridge(
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this.getMusicPathInAudioStore(musicId)
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);
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this.musicToPlay.play();
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}
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/**
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* Stops game music
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*/
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public void stopMusic() {
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this.musicToPlay.stop();
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}
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/**
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* Preloads available sounds
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*/
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private void preloadSounds() {
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// Initialize
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String curSoundIdPrep;
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this.preloadedSounds = new HashMap<String, SoundJLayerBridge>();
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// List sound files
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File soundsDir = new File(AudioLoadHelper.pathToAudioStore + "/sounds/");
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File [] soundFiles = soundsDir.listFiles(new FilenameFilter() {
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@Override
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public boolean accept(File dir, String name) {
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return name.endsWith(".mp3");
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}
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});
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// Cache them all!
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for (File curSoundId : soundFiles) {
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curSoundIdPrep = curSoundId.getName();
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curSoundIdPrep = curSoundIdPrep.substring(0, curSoundIdPrep.lastIndexOf('.'));
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this.preloadedSounds.put(curSoundIdPrep, new SoundJLayerBridge(
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curSoundId.getPath()
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));
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}
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}
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/**
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* Gets a preloaded sound
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*
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* @param soundId Sound identifier
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* @return Preloaded sound instance
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*/
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private SoundJLayerBridge getPreloadedSound(String soundId) {
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return this.preloadedSounds.get(soundId);
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}
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/**
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* Plays a sound
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*
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* @param soundId Sound identifier
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*/
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public void playSound(String soundId) {
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this.getPreloadedSound(soundId).play();
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}
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}
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