code: function(client, packet) {
              var x    = packet.readFloat32LE();
              var y    = packet.readFloat32LE();
              var zoom = packet.readFloat32LE();
  
              if(client.debug >= 4)
                  client.log('spectate FOV update: x=' + x + ' y=' + y + ' zoom=' + zoom);
  
              client.emitEvent('spectateFieldUpdate', x, y, zoom);
          }
docs: update spectating coordinates in "spectate" mode