sunTimes_New.cpp

#include <utilities/sunTimes.h>


void sunTimes::calcNewSunTimes() {
    if (!fileSys.config.gotGeoData) { return; }

    Serial.println("*********************      *********************");

    int year = hsh_timeSystem.getYear(),
        month = hsh_timeSystem.getMonth(),
        day = hsh_timeSystem.getDayOfMonth();

    double lon = -fileSys.config.longitude,
           lat = fileSys.config.latitude;

    double daylen, civlen, nautlen, astrlen;
    double rise, set, civ_start, civ_end, naut_start, naut_end,
        astr_start, astr_end;
    int rs, civ, naut, astr;

    daylen = day_length(year, month, day, lon, lat);
    civlen = day_civil_twilight_length(year, month, day, lon, lat);
    nautlen = day_nautical_twilight_length(year, month, day, lon, lat);
    astrlen = day_astronomical_twilight_length(year, month, day,
                                               lon, lat);

    Serial.printf("Day length:                 %5.2f hours\n", daylen);
    Serial.printf("With civil twilight         %5.2f hours\n", civlen);
    Serial.printf("With nautical twilight      %5.2f hours\n", nautlen);
    Serial.printf("With astronomical twilight  %5.2f hours\n", astrlen);
    Serial.printf("Length of twilight: civil   %5.2f hours\n",
           (civlen - daylen) / 2.0);
    Serial.printf("                  nautical  %5.2f hours\n",
           (nautlen - daylen) / 2.0);
    Serial.printf("              astronomical  %5.2f hours\n",
           (astrlen - daylen) / 2.0);

    rs = sun_rise_set(year, month, day, lon, lat,
                      &rise, &set);
    civ = civil_twilight(year, month, day, lon, lat,
                         &civ_start, &civ_end);
    naut = nautical_twilight(year, month, day, lon, lat,
                             &naut_start, &naut_end);
    astr = astronomical_twilight(year, month, day, lon, lat,
                                 &astr_start, &astr_end);

    Serial.printf("Sun at south %5.2fh UT\n", (rise + set) / 2.0);

    switch (rs) {
        case 0:
            Serial.printf("Sun rises %5.2fh UT, sets %5.2fh UT\n",
                   rise, set);
            break;
        case +1:
            Serial.printf("Sun above horizon\n");
            break;
        case -1:
            Serial.printf("Sun below horizon\n");
            break;
    }

    switch (civ) {
        case 0:
            Serial.printf(
                "Civil twilight starts %5.2fh, "
                "ends %5.2fh UT\n",
                civ_start, civ_end);
            break;
        case +1:
            Serial.printf("Never darker than civil twilight\n");
            break;
        case -1:
            Serial.printf("Never as bright as civil twilight\n");
            break;
    }

    switch (naut) {
        case 0:
            Serial.printf(
                "Nautical twilight starts %5.2fh, "
                "ends %5.2fh UT\n",
                naut_start, naut_end);
            break;
        case +1:
            Serial.printf("Never darker than nautical twilight\n");
            break;
        case -1:
            Serial.printf("Never as bright as nautical twilight\n");
            break;
    }

    switch (astr) {
        case 0:
            Serial.printf(
                "Astronomical twilight starts %5.2fh, "
                "ends %5.2fh UT\n",
                astr_start, astr_end);
            break;
        case +1:
            Serial.printf("Never darker than astronomical twilight\n");
            break;
        case -1:
            Serial.printf("Never as bright as astronomical twilight\n");
            break;
    }
    Serial.println("*********************      *********************");
}