diff options
Diffstat (limited to 'movement/watch_faces/complication/astronomy_face.c')
| -rw-r--r-- | movement/watch_faces/complication/astronomy_face.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/movement/watch_faces/complication/astronomy_face.c b/movement/watch_faces/complication/astronomy_face.c new file mode 100644 index 00000000..50e5221b --- /dev/null +++ b/movement/watch_faces/complication/astronomy_face.c @@ -0,0 +1,280 @@ +/* + * MIT License + * + * Copyright (c) 2022 Joey Castillo + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <math.h> +#include "astronomy_face.h" +#include "watch_utility.h" + +#if __EMSCRIPTEN__ +#include <emscripten.h> +#endif + +#define NUM_AVAILABLE_BODIES 9 + +static const char astronomy_available_celestial_bodies[NUM_AVAILABLE_BODIES] = { + ASTRO_BODY_SUN, + ASTRO_BODY_MERCURY, + ASTRO_BODY_VENUS, + ASTRO_BODY_MOON, + ASTRO_BODY_MARS, + ASTRO_BODY_JUPITER, + ASTRO_BODY_SATURN, + ASTRO_BODY_URANUS, + ASTRO_BODY_NEPTUNE +}; + +static const char astronomy_celestial_body_names[NUM_AVAILABLE_BODIES][3] = { + "SO", // Sol + "ME", // Mercury + "VE", // Venus + "LU", // Moon (Luna) + "MA", // Mars + "JU", // Jupiter + "SA", // Saturn + "UR", // Uranus + "NE" // Neptune +}; + +static void _astronomy_face_recalculate(movement_settings_t *settings, astronomy_state_t *state) { +#if __EMSCRIPTEN__ + int16_t browser_lat = EM_ASM_INT({ + return lat; + }); + int16_t browser_lon = EM_ASM_INT({ + return lon; + }); + if ((watch_get_backup_data(1) == 0) && (browser_lat || browser_lon)) { + movement_location_t browser_loc; + browser_loc.bit.latitude = browser_lat; + browser_loc.bit.longitude = browser_lon; + watch_store_backup_data(browser_loc.reg, 1); + double lat = (double)browser_lat / 100.0; + double lon = (double)browser_lon / 100.0; + state->latitude_radians = astro_degrees_to_radians(lat); + state->longitude_radians = astro_degrees_to_radians(lon); + } +#endif + + watch_date_time date_time = watch_rtc_get_date_time(); + uint32_t timestamp = watch_utility_date_time_to_unix_time(date_time, movement_timezone_offsets[settings->bit.time_zone] * 60); + date_time = watch_utility_date_time_from_unix_time(timestamp, 0); + double jd = astro_convert_date_to_julian_date(date_time.unit.year + WATCH_RTC_REFERENCE_YEAR, date_time.unit.month, date_time.unit.day, date_time.unit.hour, date_time.unit.minute, date_time.unit.second); + + astro_equatorial_coordinates_t radec_precession = astro_get_ra_dec(jd, astronomy_available_celestial_bodies[state->active_body_index], state->latitude_radians, state->longitude_radians, true); + printf("\nParams to convert: %f %f %f %f %f\n", + jd, + astro_radians_to_degrees(state->latitude_radians), + astro_radians_to_degrees(state->longitude_radians), + astro_radians_to_degrees(radec_precession.right_ascension), + astro_radians_to_degrees(radec_precession.declination)); + + astro_horizontal_coordinates_t horiz = astro_ra_dec_to_alt_az(jd, state->latitude_radians, state->longitude_radians, radec_precession.right_ascension, radec_precession.declination); + astro_equatorial_coordinates_t radec = astro_get_ra_dec(jd, astronomy_available_celestial_bodies[state->active_body_index], state->latitude_radians, state->longitude_radians, false); + state->altitude = astro_radians_to_degrees(horiz.altitude); + state->azimuth = astro_radians_to_degrees(horiz.azimuth); + state->right_ascension = astro_radians_to_hms(radec.right_ascension); + state->declination = astro_radians_to_dms(radec.declination); + state->distance = radec.distance; + + printf("Calculated coordinates for %s on %f: \n\tRA = %f / %2dh %2dm %2ds\n\tDec = %f / %3d° %3d' %3d\"\n\tAzi = %f\n\tAlt = %f\n\tDst = %f AU\n", + astronomy_celestial_body_names[state->active_body_index], + jd, + astro_radians_to_degrees(radec.right_ascension), + state->right_ascension.hours, + state->right_ascension.minutes, + state->right_ascension.seconds, + astro_radians_to_degrees(radec.declination), + state->declination.degrees, + state->declination.minutes, + state->declination.seconds, + state->altitude, + state->azimuth, + state->distance); +} + +static void _astronomy_face_update(movement_event_t event, movement_settings_t *settings, astronomy_state_t *state) { + char buf[16]; + switch (state->mode) { + case ASTRONOMY_MODE_SELECTING_BODY: + watch_clear_colon(); + watch_display_string(" Astro", 4); + if (event.subsecond % 2) { + watch_display_string((char *)astronomy_celestial_body_names[state->active_body_index], 0); + } else { + watch_display_string(" ", 0); + } + if (event.subsecond == 0) { + watch_display_string(" ", 2); + switch (state->animation_state) { + case 0: + watch_set_pixel(0, 7); + watch_set_pixel(2, 6); + break; + case 1: + watch_set_pixel(1, 7); + watch_set_pixel(2, 9); + break; + case 2: + watch_set_pixel(2, 7); + watch_set_pixel(0, 9); + break; + } + state->animation_state = (state->animation_state + 1) % 3; + } + break; + case ASTRONOMY_MODE_CALCULATING: + watch_clear_display(); + // this takes a moment and locks the UI, flash C for "Calculating" + watch_start_character_blink('C', 100); + _astronomy_face_recalculate(settings, state); + watch_stop_blink(); + state->mode = ASTRONOMY_MODE_DISPLAYING_ALT; + // fall through + case ASTRONOMY_MODE_DISPLAYING_ALT: + sprintf(buf, "%saL%6d", astronomy_celestial_body_names[state->active_body_index], (int16_t)round(state->altitude * 100)); + watch_display_string(buf, 0); + break; + case ASTRONOMY_MODE_DISPLAYING_AZI: + sprintf(buf, "%saZ%6d", astronomy_celestial_body_names[state->active_body_index], (int16_t)round(state->azimuth * 100)); + watch_display_string(buf, 0); + break; + case ASTRONOMY_MODE_DISPLAYING_RA: + watch_set_colon(); + sprintf(buf, "ra H%02d%02d%02d", state->right_ascension.hours, state->right_ascension.minutes, state->right_ascension.seconds); + watch_display_string(buf, 0); + break; + case ASTRONOMY_MODE_DISPLAYING_DEC: + watch_clear_colon(); + sprintf(buf, "de %3d%2d%2d", state->declination.degrees, state->declination.minutes, state->declination.seconds); + watch_display_string(buf, 0); + break; + case ASTRONOMY_MODE_DISPLAYING_DIST: + if (state->distance >= 0.00668456) { + // if >= 1,000,000 kilometers (all planets), we display distance in AU. + sprintf(buf, "diAU%6d", (uint16_t)round(state->distance * 100)); + } else { + // otherwise distance in kilometers fits in 6 digits. This mode will only happen for Luna. + sprintf(buf, "di K%6ld", (uint32_t)round(state->distance * 149597871.0)); + } + watch_display_string(buf, 0); + break; + case ASTRONOMY_MODE_NUM_MODES: + // this case does not happen, but we need it to silence a warning. + break; + } +} + +void astronomy_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) { + (void) settings; + (void) watch_face_index; + if (*context_ptr == NULL) { + *context_ptr = malloc(sizeof(astronomy_state_t)); + memset(*context_ptr, 0, sizeof(astronomy_state_t)); + } +} + +void astronomy_face_activate(movement_settings_t *settings, void *context) { + (void) settings; + astronomy_state_t *state = (astronomy_state_t *)context; + movement_location_t movement_location = (movement_location_t) watch_get_backup_data(1); + int16_t lat_centi = (int16_t)movement_location.bit.latitude; + int16_t lon_centi = (int16_t)movement_location.bit.longitude; + double lat = (double)lat_centi / 100.0; + double lon = (double)lon_centi / 100.0; + state->latitude_radians = astro_degrees_to_radians(lat); + state->longitude_radians = astro_degrees_to_radians(lon); + + movement_request_tick_frequency(4); +} + +bool astronomy_face_loop(movement_event_t event, movement_settings_t *settings, void *context) { + astronomy_state_t *state = (astronomy_state_t *)context; + + switch (event.event_type) { + case EVENT_ACTIVATE: + case EVENT_TICK: + _astronomy_face_update(event, settings, state); + break; + case EVENT_MODE_BUTTON_UP: + // You shouldn't need to change this case; Mode almost always moves to the next watch face. + movement_move_to_next_face(); + break; + case EVENT_LIGHT_BUTTON_UP: + // If you have other uses for the Light button, you can opt not to illuminate the LED for this event. + movement_illuminate_led(); + break; + case EVENT_ALARM_BUTTON_UP: + switch (state->mode) { + case ASTRONOMY_MODE_SELECTING_BODY: + // advance to next celestial body (move to calculations with a long press) + state->active_body_index = (state->active_body_index + 1) % NUM_AVAILABLE_BODIES; + break; + case ASTRONOMY_MODE_CALCULATING: + // ignore button press during calculations + break; + case ASTRONOMY_MODE_DISPLAYING_DIST: + // at last mode, wrap around + state->mode = ASTRONOMY_MODE_DISPLAYING_ALT; + break; + default: + // otherwise, advance to next mode + state->mode++; + break; + } + _astronomy_face_update(event, settings, state); + break; + case EVENT_ALARM_LONG_PRESS: + if (state->mode == ASTRONOMY_MODE_SELECTING_BODY) { + // celestial body selected! this triggers a calculation in the update method. + state->mode = ASTRONOMY_MODE_CALCULATING; + movement_request_tick_frequency(1); + _astronomy_face_update(event, settings, state); + } else if (state->mode != ASTRONOMY_MODE_CALCULATING) { + // in all modes except "doing a calculation", return to the selection screen. + state->mode = ASTRONOMY_MODE_SELECTING_BODY; + movement_request_tick_frequency(4); + _astronomy_face_update(event, settings, state); + } + break; + case EVENT_TIMEOUT: + movement_move_to_face(0); + break; + case EVENT_LOW_ENERGY_UPDATE: + // TODO? + break; + default: + break; + } + + return true; +} + +void astronomy_face_resign(movement_settings_t *settings, void *context) { + (void) settings; + astronomy_state_t *state = (astronomy_state_t *)context; + state->mode = ASTRONOMY_MODE_SELECTING_BODY; +} |