To be more clear, I'm trying to make a playsound alternative that is also able to stop the sound from a coordinate (if it has been started by the same command) and loop it.

 

I managed to make the start/stop thing for now, but it only on cient side. Any help on how to make it work for other players?

 

Code of the play sound part:

In the command:
   Main.proxy.playSoundFromCoords(sound, x, y, z, vol, pitch);

In the client proxy:
    private final Map<ChunkCoordinates, ISound> mapSoundPositions = new HashMap<ChunkCoordinates, ISound>();    
    
    @Override
    public void playSoundFromCoords(String sound, int x, int y, int z, float vol, float pitch) {
    	ChunkCoordinates chunkcoordinates = new ChunkCoordinates(x, y, z);
    	ISound isound = mapSoundPositions.get(chunkcoordinates);
    	if (isound != null) {
    		System.out.println("Sound already playing at " + x + "/" + y + "/" + z + "; stopping sound");
    		Minecraft.getMinecraft().getSoundHandler().stopSound(isound);
    		mapSoundPositions.remove(chunkcoordinates);
    	}
    	if (sound != null) {
    		System.out.println("Playing sound at " + x + "/" + y + "/" + z + ": " + sound);
    		ResourceLocation resource = new ResourceLocation(sound);
    		PositionedSoundRecord psr = new PositionedSoundRecord(resource, vol, pitch, x, y, z);
    		mapSoundPositions.put(chunkcoordinates, psr);
    		Minecraft.getMinecraft().getSoundHandler().playSound(psr);
    	}
    }

 

Edit: forgot to say that the code mostly comes from this thread:http://www.minecraftforge.net/forum/index.php?topic=24230.0

Realized how to, I have to run that code after sending a packet to the client.