226 lines
8.4 KiB
C
226 lines
8.4 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2022 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "orrery_face.h"
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#include "watch.h"
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#include "watch_utility.h"
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#include "vsop87a_micro.h" // smaller size, less accurate
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#include "vsop87a_milli.h"
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#include "astrolib.h"
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#define NUM_AVAILABLE_BODIES 9
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static const char orrery_celestial_body_names[NUM_AVAILABLE_BODIES][3] = {
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"ME", // Mercury
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"VE", // Venus
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"EA", // Earth
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"LU", // Moon (Luna)
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"MA", // Mars
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"JU", // Jupiter
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"SA", // Saturn
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"UR", // Uranus
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"NE" // Neptune
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};
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static void _orrery_face_recalculate(movement_settings_t *settings, orrery_state_t *state) {
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watch_date_time date_time = watch_rtc_get_date_time();
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uint32_t timestamp = watch_utility_date_time_to_unix_time(date_time, movement_timezone_offsets[settings->bit.time_zone] * 60);
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date_time = watch_utility_date_time_from_unix_time(timestamp, 0);
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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);
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double et = astro_convert_jd_to_julian_millenia_since_j2000(jd);
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double r[3] = {0};
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switch(state->active_body_index) {
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case 0:
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vsop87a_milli_getMercury(et, r);
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break;
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case 1:
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vsop87a_milli_getVenus(et, r);
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break;
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case 2:
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vsop87a_milli_getEarth(et, r);
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break;
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case 3:
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{
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double earth[3];
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double emb[3];
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vsop87a_milli_getEarth(et, earth);
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vsop87a_milli_getEmb(et, emb);
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vsop87a_milli_getMoon(earth, emb, r);
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}
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break;
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case 4:
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vsop87a_milli_getMars(et, r);
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break;
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case 5:
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vsop87a_milli_getJupiter(et, r);
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break;
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case 6:
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vsop87a_milli_getSaturn(et, r);
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break;
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case 7:
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vsop87a_milli_getUranus(et, r);
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break;
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case 8:
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vsop87a_milli_getNeptune(et, r);
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break;
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}
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state->coords[0] = r[0];
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state->coords[1] = r[1];
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state->coords[2] = r[2];
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}
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static void _orrery_face_update(movement_event_t event, movement_settings_t *settings, orrery_state_t *state) {
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char buf[11];
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switch (state->mode) {
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case ORRERY_MODE_SELECTING_BODY:
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watch_display_string("Orrery", 4);
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if (event.subsecond % 2) {
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watch_display_string((char *)orrery_celestial_body_names[state->active_body_index], 0);
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} else {
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watch_display_string(" ", 0);
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}
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if (event.subsecond == 0) {
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watch_display_string(" ", 2);
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switch (state->animation_state) {
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case 0:
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watch_set_pixel(0, 7);
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watch_set_pixel(2, 6);
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break;
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case 1:
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watch_set_pixel(1, 7);
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watch_set_pixel(2, 9);
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break;
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case 2:
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watch_set_pixel(2, 7);
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watch_set_pixel(0, 9);
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break;
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}
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state->animation_state = (state->animation_state + 1) % 3;
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}
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break;
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case ORRERY_MODE_CALCULATING:
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watch_clear_display();
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// this takes a moment and locks the UI, flash C for "Calculating"
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watch_start_character_blink('C', 100);
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_orrery_face_recalculate(settings, state);
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watch_stop_blink();
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state->mode = ORRERY_MODE_DISPLAYING_X;
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// fall through
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case ORRERY_MODE_DISPLAYING_X:
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sprintf(buf, "%s X%6d", orrery_celestial_body_names[state->active_body_index], (int16_t)round(state->coords[0] * 100));
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watch_display_string(buf, 0);
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break;
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case ORRERY_MODE_DISPLAYING_Y:
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sprintf(buf, "%s Y%6d", orrery_celestial_body_names[state->active_body_index], (int16_t)round(state->coords[1] * 100));
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watch_display_string(buf, 0);
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break;
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case ORRERY_MODE_DISPLAYING_Z:
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sprintf(buf, "%s Z%6d", orrery_celestial_body_names[state->active_body_index], (int16_t)round(state->coords[2] * 100));
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watch_display_string(buf, 0);
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break;
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case ORRERY_MODE_NUM_MODES:
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// this case does not happen, but we need it to silence a warning.
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break;
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}
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}
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void orrery_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
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(void) settings;
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(void) watch_face_index;
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if (*context_ptr == NULL) {
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*context_ptr = malloc(sizeof(orrery_state_t));
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memset(*context_ptr, 0, sizeof(orrery_state_t));
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}
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}
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void orrery_face_activate(movement_settings_t *settings, void *context) {
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(void) settings;
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(void) context;
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movement_request_tick_frequency(4);
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}
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bool orrery_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
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(void) settings;
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orrery_state_t *state = (orrery_state_t *)context;
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switch (event.event_type) {
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case EVENT_ACTIVATE:
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case EVENT_TICK:
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_orrery_face_update(event, settings, state);
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break;
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case EVENT_ALARM_BUTTON_UP:
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switch (state->mode) {
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case ORRERY_MODE_SELECTING_BODY:
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// advance to next celestial body (move to calculations with a long press)
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state->active_body_index = (state->active_body_index + 1) % NUM_AVAILABLE_BODIES;
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break;
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case ORRERY_MODE_CALCULATING:
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// ignore button press during calculations
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break;
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case ORRERY_MODE_DISPLAYING_Z:
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// at last mode, wrap around
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state->mode = ORRERY_MODE_DISPLAYING_X;
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break;
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default:
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// otherwise, advance to next mode
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state->mode++;
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break;
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}
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_orrery_face_update(event, settings, state);
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break;
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case EVENT_ALARM_LONG_PRESS:
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if (state->mode == ORRERY_MODE_SELECTING_BODY) {
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// celestial body selected! this triggers a calculation in the update method.
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state->mode = ORRERY_MODE_CALCULATING;
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movement_request_tick_frequency(1);
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_orrery_face_update(event, settings, state);
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} else if (state->mode != ORRERY_MODE_CALCULATING) {
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// in all modes except "doing a calculation", return to the selection screen.
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state->mode = ORRERY_MODE_SELECTING_BODY;
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movement_request_tick_frequency(4);
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_orrery_face_update(event, settings, state);
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}
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break;
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case EVENT_TIMEOUT:
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movement_move_to_face(0);
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break;
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default:
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movement_default_loop_handler(event, settings);
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break;
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}
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return true;
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}
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void orrery_face_resign(movement_settings_t *settings, void *context) {
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(void) settings;
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orrery_state_t *state = (orrery_state_t *)context;
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state->mode = ORRERY_MODE_SELECTING_BODY;
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}
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