private void sendMessage(Float[] _floats){
        try{
            wr.writeDouble((double)_floats[0]);
            wr.writeDouble((double)_floats[1]);
            wr.writeDouble((double)_floats[2]);
            System.out.println("serverdoubles>" + (double)_floats[0] + ", " +(double)_floats[1] + ", " +(double)_floats[2] );
            System.out.println("serverdoubles>" + _floats[0] + ", " +_floats[1] + ", " +_floats[2] );
        }
        catch(Exception ioException){ ioException.printStackTrace(); }
    }