diff options
Diffstat (limited to 'movement/watch_faces/complication/moon_phase_face.c')
-rw-r--r-- | movement/watch_faces/complication/moon_phase_face.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/movement/watch_faces/complication/moon_phase_face.c b/movement/watch_faces/complication/moon_phase_face.c new file mode 100644 index 00000000..0ff7b254 --- /dev/null +++ b/movement/watch_faces/complication/moon_phase_face.c @@ -0,0 +1,184 @@ +/* + * MIT License + * + * Copyright (c) 2022 Joey Castillo + * + * Based on Phase of Moon App for Tidbyt + * https://github.com/tidbyt/community/blob/main/apps/phaseofmoon/phase_of_moon.star + * Copyright (c) 2022 Alan Fleming + * + * + * 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 <string.h> +#include <stdio.h> +#include <math.h> +#include "moon_phase_face.h" +#include "watch_utility.h" + +#define LUNAR_DAYS 29.53058770576 +#define LUNAR_SECONDS (LUNAR_DAYS * (24 * 60 * 60)) +#define FIRST_MOON 947182440 // Saturday, 6 January 2000 18:14:00 in unix epoch time +#define NUM_PHASES 8 + +static const float phase_changes[] = {0, 1, 6.38264692644, 8.38264692644, 13.76529385288, 15.76529385288, 21.14794077932, 23.14794077932, 28.53058770576, 29.53058770576}; + +void moon_phase_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(moon_phase_state_t)); + memset(*context_ptr, 0, sizeof(moon_phase_state_t)); + } +} + +void moon_phase_face_activate(movement_settings_t *settings, void *context) { + (void) settings; + (void) context; +} + +static void _update(movement_settings_t *settings, moon_phase_state_t *state, uint32_t offset) { + (void)state; + char buf[11]; + watch_date_time date_time = watch_rtc_get_date_time(); + uint32_t now = watch_utility_date_time_to_unix_time(date_time, movement_timezone_offsets[settings->bit.time_zone] * 60) + offset; + date_time = watch_utility_date_time_from_unix_time(now, movement_timezone_offsets[settings->bit.time_zone] * 60); + double currentfrac = fmod(now - FIRST_MOON, LUNAR_SECONDS) / LUNAR_SECONDS; + double currentday = currentfrac * LUNAR_DAYS; + uint8_t phase_index = 0; + + for(phase_index = 0; phase_index <= NUM_PHASES; phase_index++) { + if (currentday > phase_changes[phase_index] && currentday <= phase_changes[phase_index + 1]) break; + } + + watch_display_string(" ", 0); + switch (phase_index) { + case 0: + case 8: + sprintf(buf, "%2d Neu ", date_time.unit.day); + break; + case 1: + sprintf(buf, "%2dCresnt", date_time.unit.day); + watch_set_pixel(2, 13); + watch_set_pixel(2, 15); + if (currentfrac > 0.125) watch_set_pixel(1, 13); + break; + case 2: + sprintf(buf, "%2d 1st q", date_time.unit.day); + watch_set_pixel(2, 13); + watch_set_pixel(2, 15); + watch_set_pixel(1, 13); + watch_set_pixel(1, 14); + break; + case 3: + sprintf(buf, "%2d Gibb ", date_time.unit.day); + watch_set_pixel(2, 13); + watch_set_pixel(2, 15); + watch_set_pixel(1, 14); + watch_set_pixel(1, 13); + watch_set_pixel(1, 15); + break; + case 4: + sprintf(buf, "%2d FULL ", date_time.unit.day); + watch_set_pixel(2, 13); + watch_set_pixel(2, 15); + watch_set_pixel(1, 14); + watch_set_pixel(2, 14); + watch_set_pixel(1, 15); + watch_set_pixel(0, 14); + watch_set_pixel(0, 13); + watch_set_pixel(1, 13); + break; + case 5: + sprintf(buf, "%2d Gibb ", date_time.unit.day); + watch_set_pixel(1, 14); + watch_set_pixel(2, 14); + watch_set_pixel(1, 15); + watch_set_pixel(0, 14); + watch_set_pixel(0, 13); + break; + case 6: + sprintf(buf, "%2d 3rd q", date_time.unit.day); + watch_set_pixel(1, 14); + watch_set_pixel(2, 14); + watch_set_pixel(0, 14); + watch_set_pixel(0, 13); + break; + case 7: + sprintf(buf, "%2dCresnt", date_time.unit.day); + watch_set_pixel(0, 14); + watch_set_pixel(0, 13); + if (currentfrac < 0.875) watch_set_pixel(2, 14); + break; + } + watch_display_string(buf, 2); +} + +bool moon_phase_face_loop(movement_event_t event, movement_settings_t *settings, void *context) { + moon_phase_state_t *state = (moon_phase_state_t *)context; + watch_date_time date_time; + + switch (event.event_type) { + case EVENT_ACTIVATE: + _update(settings, state, state->offset); + break; + case EVENT_TICK: + // only update once an hour + date_time = watch_rtc_get_date_time(); + if ((date_time.unit.minute == 0) && (date_time.unit.second == 0)) _update(settings, state, state->offset); + break; + case EVENT_LOW_ENERGY_UPDATE: + // update at the top of the hour OR if we're entering sleep mode with an offset. + // also, in sleep mode, always show the current moon phase (offset = 0). + if (state->offset || (watch_rtc_get_date_time().unit.minute == 0)) _update(settings, state, 0); + // and kill the offset so when the wearer wakes up, it matches what's on screen. + state->offset = 0; + // finally: clear out the last two digits and replace them with the sleep mode indicator + watch_display_string(" ", 8); + if (!watch_tick_animation_is_running()) watch_start_tick_animation(1000); + break; + case EVENT_MODE_BUTTON_UP: + movement_move_to_next_face(); + break; + case EVENT_LIGHT_BUTTON_UP: + movement_illuminate_led(); + break; + case EVENT_ALARM_BUTTON_UP: + // Pressing the alarm adds an offset of one day to the displayed value, + // so you can see moon phases in the future. + state->offset += 86400; + _update(settings, state, state->offset); + break; + case EVENT_TIMEOUT: + // QUESTION: Should timeout reset offset to 0? + break; + default: + break; + } + + return true; +} + +void moon_phase_face_resign(movement_settings_t *settings, void *context) { + (void) settings; + moon_phase_state_t *state = (moon_phase_state_t *)context; + state->offset = 0; +} |