I'm attempting to make a mod that set's a player's position if they are offline with a command.

Here's what I have so far:

SaveHandlerMP sh;
    private List<String> aliases;

    @Override
    public String getCommandName() {
        return "otphere";
    }

    @Override
    public String getCommandUsage(ICommandSender p_71518_1_) {
        return "/otphere <player>";
    }

    @Override
    public List getCommandAliases() {
        aliases.add("otph");
        return aliases;
    }

    @Override
    public void processCommand(ICommandSender sender, String[] args) {
        if (canCommandSenderUseCommand(sender)) {
            try {
                sh = (SaveHandlerMP) sender.getEntityWorld().getSaveHandler();
                File playerDir = new File(sh.getWorldDirectory(), "playerdata");
                UUID u = UUID.nameUUIDFromBytes(("OfflinePlayer:" + args[0]).getBytes(Charsets.UTF_);
                File pd = new File(playerDir, u + ".dat");
                NBTTagCompound nbt;
                nbt = CompressedStreamTools.read(pd);
                //not sure what the values of the postitions are D:
                nbt.setDouble("posX", sender.getPlayerCoordinates().posX);;
            } catch (Exception ex) {
                ex.printStackTrace();
            }

        }
    }

                //not sure what the values of the postitions are D:

 

That's odd.  It's fully documented on the wiki...

I saw that but I'm not quite sure about how to go at setting the position.