sensor-watch/movement/watch_faces/complication/tarot_face.c
Jeremy O'Brien a18c285e58 restore old light button behavior
watch faces that handle EVENT_LIGHT_BUTTON_UP but not EVENT_LIGHT_BUTTON_DOWN
probably don't want the default EVENT_LIGHT_BUTTON_DOWN LED activation behavior
2023-01-27 09:43:03 -06:00

302 lines
9 KiB
C

/*
* MIT License
*
* Copyright (c) 2022 Jeremy O'Brien
* Base code copied from Spencer Bywater's probability face
*
* 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.
*/
// Emulator only: need time() to seed the random number generator.
#if __EMSCRIPTEN__
#include <time.h>
#endif
#include <stdlib.h>
#include <string.h>
#include "tarot_face.h"
#define TAROT_ANIMATION_TICK_FREQUENCY 8
#define FLIPPED_BIT_POS 7
#define FLIPPED_MASK ((uint8_t)(1 << FLIPPED_BIT_POS))
// --------------
// Custom methods
// --------------
static char major_arcana[][7] = {
" FOOL ",
"Mgcian",
"HPrsts",
"En&prs", // Empress
"En&por", // Emperor
"Hiroph",
"Lovers",
"Chriot",
"Strgth",
"Hrn&it", // Hermit
" Frtun",
"Justce",
"Hangn&", // Hangman
" Death",
" tmprn",
" Devil",
" Tower",
" Star",
"n&OON ", // Moon
" Sun ",
"Jdgmnt",
" World",
};
#define NUM_MAJOR_ARCANA (sizeof(major_arcana) / sizeof(*major_arcana))
static char suits[][7] = {
" wands",
" cups",
"swords",
" coins",
};
#define NUM_MINOR_ARCANA 56
#define NUM_CARDS_PER_SUIT 14
#define NUM_TAROT_CARDS (NUM_MAJOR_ARCANA + NUM_MINOR_ARCANA)
static void init_deck(tarot_state_t *state) {
memset(state->drawn_cards, 0xff, sizeof(state->drawn_cards));
state->current_card = 0;
}
static void tarot_display(tarot_state_t *state) {
char buf[12];
char *start_end_string;
uint8_t card;
bool flipped;
// deck is initialized; show current draw mode and return
if (state->drawn_cards[0] == 0xff) {
watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
if (state->major_arcana_only) {
sprintf(buf, "TA%2dn&ajor", state->num_cards_to_draw);
} else {
sprintf(buf, "TA%2d All", state->num_cards_to_draw);
}
watch_display_string(buf, 0);
return;
}
// show a special status if we're looking at the first or last card in the spread
if (state->current_card == 0) {
start_end_string = "St";
} else if (state->current_card == state->num_cards_to_draw - 1) {
start_end_string = "En";
} else {
start_end_string = " ";
}
// figure out the card we're showing
card = state->drawn_cards[state->current_card];
flipped = (card & FLIPPED_MASK) ? true : false; // check flipped bit
card &= ~FLIPPED_MASK; // remove the flipped bit
if (card < NUM_MAJOR_ARCANA) {
// major arcana
// show start/end, no rank, card name
sprintf(buf, "%s %s", start_end_string, major_arcana[card]);
} else {
// minor arcana
uint8_t suit = (card - NUM_MAJOR_ARCANA) / NUM_CARDS_PER_SUIT;
uint8_t rank = ((card - NUM_MAJOR_ARCANA) % NUM_CARDS_PER_SUIT) + 1;
// show start/end, rank + suit
sprintf(buf, "%s%2d%s", start_end_string, rank, suits[suit]);
}
watch_display_string(buf, 0);
if (flipped) {
watch_set_indicator(WATCH_INDICATOR_SIGNAL);
} else {
watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
}
}
static uint8_t get_rand_num(uint8_t num_values) {
// Emulator: use rand. Hardware: use arc4random.
#if __EMSCRIPTEN__
return rand() % num_values;
#else
return arc4random_uniform(num_values);
#endif
}
static uint8_t draw_one_card(tarot_state_t *state) {
if (state->major_arcana_only) {
return get_rand_num(NUM_MAJOR_ARCANA);
} else {
return get_rand_num(NUM_TAROT_CARDS);
}
}
static bool already_drawn(tarot_state_t *state, uint8_t drawn_card) {
for (int i = 0; state->drawn_cards[i] != 0xff && i < state->num_cards_to_draw; i++) {
if ((state->drawn_cards[i] & ~FLIPPED_MASK) == drawn_card) {
return true;
}
}
return false;
}
static void pick_cards(tarot_state_t *state) {
uint8_t card;
for (int i = 0; i < state->num_cards_to_draw; i++) {
card = draw_one_card(state);
while (already_drawn(state, card)) {
card = draw_one_card(state);
}
card |= get_rand_num(2) << FLIPPED_BIT_POS; // randomly flip the card
state->drawn_cards[i] = card;
}
}
static void display_animation(tarot_state_t *state) {
if (state->animation_frame == 0) {
watch_display_string(" ", 7);
watch_set_pixel(1, 4);
watch_set_pixel(1, 6);
state->animation_frame = 1;
} else if (state->animation_frame == 1) {
watch_clear_pixel(1, 4);
watch_clear_pixel(1, 6);
watch_set_pixel(2, 4);
watch_set_pixel(0, 6);
state->animation_frame = 2;
} else if (state->animation_frame == 2) {
watch_clear_pixel(2, 4);
watch_clear_pixel(0, 6);
watch_set_pixel(2, 5);
watch_set_pixel(0, 5);
state->animation_frame = 3;
} else if (state->animation_frame == 3) {
state->animation_frame = 0;
state->is_picking = false;
movement_request_tick_frequency(1);
tarot_display(state);
}
}
// ---------------------------
// Standard watch face methods
// ---------------------------
void tarot_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(tarot_state_t));
memset(*context_ptr, 0, sizeof(tarot_state_t));
}
// Emulator only: Seed random number generator
#if __EMSCRIPTEN__
srand(time(NULL));
#endif
}
void tarot_face_activate(movement_settings_t *settings, void *context) {
(void) settings;
tarot_state_t *state = (tarot_state_t *)context;
watch_display_string("TA", 0);
init_deck(state);
state->num_cards_to_draw = 3;
state->major_arcana_only = true;
}
bool tarot_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
(void) settings;
tarot_state_t *state = (tarot_state_t *)context;
if (state->is_picking && event.event_type != EVENT_TICK) {
return true;
}
switch (event.event_type) {
case EVENT_ACTIVATE:
tarot_display(state);
break;
case EVENT_TICK:
if (state->is_picking) {
display_animation(state);
}
break;
case EVENT_LIGHT_BUTTON_UP:
if (state->drawn_cards[0] == 0xff) {
// deck is inited; cycle through # cards to draw
state->num_cards_to_draw++;
if (state->num_cards_to_draw > 10) {
state->num_cards_to_draw = 3;
}
} else {
// cycle through the drawn cards
state->current_card = (state->current_card + 1) % state->num_cards_to_draw;
}
tarot_display(state);
break;
case EVENT_LIGHT_LONG_PRESS:
if (state->drawn_cards[0] == 0xff) {
// at main screen; cycle major arcana mode
state->major_arcana_only = !state->major_arcana_only;
} else {
// at card view screen; go back to draw screen
init_deck(state);
}
tarot_display(state);
break;
case EVENT_ALARM_BUTTON_UP:
// Draw cards
watch_display_string(" ", 4);
watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
init_deck(state);
pick_cards(state);
state->is_picking = true;
// card picking animation begins on next tick and new cards will be displayed on completion
movement_request_tick_frequency(TAROT_ANIMATION_TICK_FREQUENCY);
break;
case EVENT_LOW_ENERGY_UPDATE:
watch_display_string("SLEEP ", 4);
break;
case EVENT_LIGHT_BUTTON_DOWN:
// don't light up every time light is hit
break;
default:
movement_default_loop_handler(event, settings);
break;
}
return true;
}
void tarot_face_resign(movement_settings_t *settings, void *context) {
(void) settings;
(void) context;
}