GermanAirlinesVA-GAConnector/xplugin/main.cpp

#include "include/main.h"

/* Datarefs */
XPLMDataRef pauseIndicator;
XPLMDataRef parkingBrake;
XPLMDataRef acftOnGrnd;
XPLMDataRef totalFuelKgs;
XPLMDataRef trueHeading;
XPLMDataRef acftAlt;
XPLMDataRef acftGS;
XPLMDataRef acftIAS;
XPLMDataRef acftVS;
XPLMDataRef acftLatitude;
XPLMDataRef acftLongitude;
XPLMDataRef fuelFlow;
XPLMDataRef maxSpeed;
XPLMDataRef uptime;
XPLMDataRef magHeading;
XPLMDataRef timeZulu;
XPLMDataRef payloadKgs;
XPLMDataRef totalWeightKgs;

XPLMDataRef localX;
XPLMDataRef localY;
XPLMDataRef localZ;
XPLMDataRef elevation;
XPLMDataRef pitch;
XPLMDataRef roll;
XPLMDataRef quaternion;

struct germanairlinesva::gaconnector::websocket::data toSend;
germanairlinesva::gaconnector::recorder::Recorder *recorder;

/*
 * Callbacks
 */
PLUGIN_API int XPluginStart(char *outName, char *outSig, char *outDesc)
{
  int xplaneVersion;

  XPLMEnableFeature("XPLM_USE_NATIVE_PATHS", 1);
  XPLMGetVersions(&xplaneVersion, NULL, NULL);

  toLog("Plugin using X-Plane Version " + std::to_string(xplaneVersion));

  /* First we must fill in the passed-in buffers to describe our
   * plugin to the plugin-system. */

  strcpy(outName, "GAConnector");
  strcpy(outSig, "de.german-airlines.GAConnector");
  strcpy(outDesc, "GAConnector");

  /* Flight Loop */
  XPLMRegisterFlightLoopCallback(flightLoop, -1, nullptr);

  /* Setup DataRefs */
  pauseIndicator = XPLMFindDataRef(
      "sim/time/sim_speed"); // INT 0=paused, doubles as setting pause(1)
  parkingBrake =
      XPLMFindDataRef("sim/flightmodel/controls/parkbrake"); // FLOAT 1=max
  acftOnGrnd =
      XPLMFindDataRef("sim/flightmodel/failures/onground_any"); // INT 1=true
  totalFuelKgs =
      XPLMFindDataRef("sim/flightmodel/weight/m_fuel_total"); // FLOAT
  trueHeading = XPLMFindDataRef(
      "sim/flightmodel/position/true_psi"); // FLOAT degrees north
  acftAlt =
      XPLMFindDataRef("sim/flightmodel/position/elevation"); // DOUBLE meters
  acftGS = XPLMFindDataRef(
      "sim/flightmodel/position/groundspeed"); // FLOAT meters/second
  acftIAS = XPLMFindDataRef(
      "sim/flightmodel/position/indicated_airspeed"); // FLOAT kias
  acftVS = XPLMFindDataRef(
      "sim/flightmodel/position/vh_ind_fpm"); // FLOAT feet/minute
  acftLatitude =
      XPLMFindDataRef("sim/flightmodel/position/latitude"); // DOUBLE degrees
  acftLongitude =
      XPLMFindDataRef("sim/flightmodel/position/longitude"); // DOUBLE degrees
  fuelFlow =
      XPLMFindDataRef("sim/flightmodel/engine/ENGN_FF_");  // FLOAT[8] kg/second
  maxSpeed = XPLMFindDataRef("sim/aircraft/view/acf_Vne"); // FLOAT kias
  uptime = XPLMFindDataRef("sim/time/total_running_time_sec"); // FLOAT seconds
  magHeading = XPLMFindDataRef(
      "sim/flightmodel/position/mag_psi"); // FLOAT degrees north
  timeZulu =
      XPLMFindDataRef("sim/time/zulu_time_sec"); // FLOAT seconds since midnight
  payloadKgs = XPLMFindDataRef("sim/flightmodel/weight/m_fixed");     // FLOAT
  totalWeightKgs = XPLMFindDataRef("sim/flightmodel/weight/m_total"); // FLOAT

  localX = XPLMFindDataRef("sim/flightmodel/position/local_x");      // DOUBLE
  localY = XPLMFindDataRef("sim/flightmodel/position/local_y");      // DOUBLE
  localZ = XPLMFindDataRef("sim/flightmodel/position/local_z");      // DOUBLE
  elevation = XPLMFindDataRef("sim/flightmodel/position/elevation"); // DOUBLE
  pitch = XPLMFindDataRef("sim/flightmodel/position/theta");         // FLOAT
  roll = XPLMFindDataRef("sim/flightmodel/position/phi");            // FLOAT
  quaternion = XPLMFindDataRef("sim/flightmodel/position/q");        // FLOAT[4]

  // Recorder
  recorder =
      new germanairlinesva::gaconnector::recorder::Recorder(xplaneVersion,
                                                            toLog);

  return 1;
}

PLUGIN_API void XPluginStop(void)
{
  /* Flight Loop */
  XPLMUnregisterFlightLoopCallback(flightLoop, nullptr);

  /* End threads */
  recorder->~Recorder();

  toLog("Plugin stopped");
}

PLUGIN_API void XPluginDisable(void) {}

PLUGIN_API int XPluginEnable(void) { return 1; }

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-parameter"
PLUGIN_API void
    XPluginReceiveMessage(XPLMPluginID inFromWho, long inMessage, void *inParam)
{
}
#pragma clang diagnostic pop

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-parameter"
float flightLoop(float elapsedMe, float elapsedSim, int counter, void *refcon)
{
  std::memset(&toSend,
              0,
              sizeof(germanairlinesva::gaconnector::websocket::data));

  toSend.pause = XPLMGetDatai(pauseIndicator);
  toSend.pBrake = XPLMGetDataf(parkingBrake);
  toSend.onGrnd = XPLMGetDatai(acftOnGrnd);
  toSend.totFuelKg = XPLMGetDataf(totalFuelKgs);
  toSend.truHdg = XPLMGetDataf(trueHeading);
  toSend.alt = XPLMGetDatad(acftAlt);
  toSend.gs = XPLMGetDataf(acftGS);
  toSend.ias = XPLMGetDataf(acftIAS);
  toSend.vs = XPLMGetDataf(acftVS);
  toSend.lat = XPLMGetDatad(acftLatitude);
  toSend.lon = XPLMGetDatad(acftLongitude);
  XPLMGetDatavf(fuelFlow, toSend.ff, 0, 8);
  toSend.maxSpd = XPLMGetDataf(maxSpeed);

  char *name = (char *)calloc(256, sizeof(char));
  XPLMGetNthAircraftModel(0, name, toSend.path);
  free(name);

  toSend.uptime = XPLMGetDataf(uptime);
  toSend.magHeading = XPLMGetDataf(magHeading);

  toSend.payloadKg = XPLMGetDataf(payloadKgs);
  toSend.totalWeightKg = XPLMGetDataf(totalWeightKgs);

  recorder->setData(toSend);

  recorder->handleMessages();

  return -1;
}
#pragma clang diagnostic pop

void toLog(const std::string &message)
{
  std::time_t utc = std::time(nullptr);
  std::tm *time = std::gmtime(&utc);
  std::stringstream msg;
  msg << std::put_time(time, "%Y-%m-%d %H:%M:%S UTC ")
      << "German Airlines VA: " << message << std::endl;
  XPLMDebugString(msg.str().c_str());
}