PixelEngineRegistry.class

public class PixelEngineRegistry {

    //this was static first time
    private final Map<String,SoundManager>sndmngs=new HashMap<String,SoundManager>();

    public void registerSoundManager(String id, SoundManager sndmng){
        if(!id.equals("")&&!id.equals(" ")){
            sndmngs.put(id, sndmng);
            PixelEngine.LOGGER.info("Successfulley registered SoundManager '"+id+"' into PixelEngine Registry.");
        }else if(sndmngs.containsKey(id))
            PixelEngine.LOGGER.info("There already is a SoundManager registered with the id '"+id+"'. Using the registered one instead.");
        else
            PixelEngine.LOGGER.info("There was a problem registering the SoundManager '"+id+"', either it's null or it has an invalid id.");
    }

    public void registerResourcePack(IResourcePack pack){
        List<IResourcePack> defaultPack=ObfuscationReflectionHelper.getPrivateValue(Minecraft.class, Minecraft.getMinecraft(), "defaultResourcePacks");
        defaultPack.add(pack);
    }

    public SoundManager getSoundManager(String id) {
        return this.sndmngs.get(id);
    }

    public SoundManager getWorldSoundManager(World world) {
        return this.sndmngs.get(WorldData.forWorld(world).getWorldID());
    }
}