src/marnav/seatalk/message_27.cpp

   1 #include <marnav/seatalk/message_27.hpp>
   2
   3 namespace marnav::seatalk
   4 {
   5
   6 message_27::message_27()
   7         : message(ID)
   8 {
   9 }
  10
  11 std::unique_ptr<message> message_27::parse(const raw & data)
  12 {
  13         check_size(data, SIZE);
  14
  15         std::unique_ptr<message> result = std::make_unique<message_27>();
  16         auto & msg = static_cast<message_27 &>(*result);
  17
  18         uint16_t value = 0;
  19         value += data[2];
  20         value <<= 8;
  21         value += data[3];
  22
  23         msg.temperature_ = value;
  24         msg.temperature_ -= 100;
  25
  26         return result;
  27 }
  28
  29 raw message_27::get_data() const
  30 {
  31         uint16_t value = (temperature_ + 100) & 0xffff;
  32
  33         return raw{static_cast<uint8_t>(ID), 0x01, static_cast<uint8_t>((value >> 8) & 0xff),
  34                 static_cast<uint8_t>((value >> 0) & 0xff)};
  35 }
  36 }