--- /dev/null
+/*
+ * 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"
+
+uint32_t arc4random_uniform(uint32_t upper_bound);
+
+#define TAROT_ANIMATION_TICK_FREQUENCY 8
+#define FLIPPED_BIT_POS 7
+#define FLIPPED_MASK ((uint8_t)(1 << FLIPPED_BIT_POS))
+
+
+// --------------
+// Custom methods
+// --------------
+
+static char fallback_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(fallback_major_arcana) / sizeof(*fallback_major_arcana))
+
+static char custom_major_arcana[][7] = {
+ "Fool ",
+ "Mgcian",
+ "HPrsts",
+ "Empres",
+ "Empror",
+ "Hiroph",
+ "Lovers",
+ "Chriot",
+ "Strgth",
+ "Hermit",
+ "Fortun",
+ "Justce",
+ "Hangmn",
+ " death",
+ "Tmprnc",
+ " devil",
+ " Tower",
+ "Star ",
+ " Moon",
+ " Sun ",
+ "Jdgmnt",
+ " World",
+};
+
+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 smallbuf[4];
+ char *start_end_string;
+ char *fallback_start_end_string;
+ uint8_t card;
+ bool flipped;
+
+ // deck is initialized; show current draw mode and return
+ if (state->drawn_cards[0] == 0xff) {
+ if (watch_get_lcd_type() == WATCH_LCD_TYPE_CLASSIC) {
+ watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
+ } else {
+ watch_clear_indicator(WATCH_INDICATOR_ARROWS);
+ }
+ watch_display_text_with_fallback(WATCH_POSITION_TOP_LEFT, "Tar", "TA");
+ sprintf(smallbuf, "%2d", state->num_cards_to_draw);
+ watch_display_text(WATCH_POSITION_TOP_RIGHT, smallbuf);
+
+ if (state->major_arcana_only) {
+ watch_display_text_with_fallback(WATCH_POSITION_BOTTOM, " Major", "n&ajor");
+ } else {
+ watch_display_text(WATCH_POSITION_BOTTOM, " All");
+ }
+ 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 = "Str";
+ fallback_start_end_string = "St";
+ } else if (state->current_card == state->num_cards_to_draw - 1) {
+ start_end_string = "End";
+ fallback_start_end_string = "En";
+ } else {
+ start_end_string = " ";
+ fallback_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
+ watch_display_text_with_fallback(WATCH_POSITION_TOP, start_end_string, fallback_start_end_string);
+ if (card < NUM_MAJOR_ARCANA) {
+ // major arcana
+
+ // show no rank, card name
+ watch_display_text(WATCH_POSITION_TOP_RIGHT, " ");
+ watch_display_text_with_fallback(WATCH_POSITION_BOTTOM, custom_major_arcana[card], fallback_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(smallbuf, "%2d", rank);
+ watch_display_text(WATCH_POSITION_TOP_RIGHT, smallbuf);
+ watch_display_text(WATCH_POSITION_BOTTOM, suits[suit]);
+ }
+
+ if (flipped) {
+ if (watch_get_lcd_type() == WATCH_LCD_TYPE_CLASSIC) {
+ watch_set_indicator(WATCH_INDICATOR_SIGNAL);
+ } else {
+ watch_set_indicator(WATCH_INDICATOR_ARROWS);
+ }
+ } else {
+ if (watch_get_lcd_type() == WATCH_LCD_TYPE_CLASSIC) {
+ watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
+ } else {
+ watch_clear_indicator(WATCH_INDICATOR_ARROWS);
+ }
+ }
+}
+
+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) {
+ watch_display_text(WATCH_POSITION_SECONDS, " ");
+
+ if (state->animation_frame == 0) {
+ if (watch_get_lcd_type() == WATCH_LCD_TYPE_CLASSIC) {
+ watch_set_pixel(1, 4); // 9F
+ watch_set_pixel(1, 6); // 9C
+ } else {
+ watch_set_pixel(2, 6); // 9F
+ watch_set_pixel(2, 7); // 9C
+ }
+ state->animation_frame = 1;
+ } else if (state->animation_frame == 1) {
+ if (watch_get_lcd_type() == WATCH_LCD_TYPE_CLASSIC) {
+ watch_clear_pixel(1, 4); // 9F
+ watch_clear_pixel(1, 6); // 9C
+ watch_set_pixel(2, 4); // 9A
+ watch_set_pixel(0, 6); // 9D
+ } else {
+ watch_clear_pixel(2, 6); // 9F
+ watch_clear_pixel(2, 7); // 9C
+ watch_set_pixel(3, 6); // 9A
+ watch_set_pixel(0, 7); // 9D
+ }
+ state->animation_frame = 2;
+ } else if (state->animation_frame == 2) {
+ if (watch_get_lcd_type() == WATCH_LCD_TYPE_CLASSIC) {
+ watch_clear_pixel(2, 4); // 9A
+ watch_clear_pixel(0, 6); // 9D
+ watch_set_pixel(2, 5); // 9B
+ watch_set_pixel(0, 5); // 9E
+ } else {
+ watch_clear_pixel(3, 6); // 9A
+ watch_clear_pixel(0, 6); // 9D
+ watch_set_pixel(3, 7); // 9B
+ watch_set_pixel(0, 6); // 9E
+ }
+ state->animation_frame = 3;
+ } else if (state->animation_frame == 3) {
+ state->animation_frame = 0;
+ movement_request_tick_frequency(1);
+ state->is_picking = false;
+ tarot_display(state);
+ }
+}
+
+
+// ---------------------------
+// Standard watch face methods
+// ---------------------------
+void tarot_face_setup(uint8_t watch_face_index, void ** context_ptr) {
+ (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(void *context) {
+ tarot_state_t *state = (tarot_state_t *)context;
+
+ watch_display_text_with_fallback(WATCH_POSITION_TOP, "Tarot", "TA");
+ init_deck(state);
+ state->num_cards_to_draw = 3;
+ state->major_arcana_only = true;
+}
+
+bool tarot_face_loop(movement_event_t event, void *context) {
+ 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:
+ if (watch_sleep_animation_is_running()) watch_stop_sleep_animation();
+ 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_text(WATCH_POSITION_BOTTOM, " ");
+ if (watch_get_lcd_type() == WATCH_LCD_TYPE_CLASSIC) {
+ watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
+ } else {
+ watch_clear_indicator(WATCH_INDICATOR_ARROWS);
+ }
+ init_deck(state);
+ pick_cards(state);
+ // card picking animation begins on next tick and new cards will be displayed on completion
+ state->is_picking = true;
+ movement_request_tick_frequency(TAROT_ANIMATION_TICK_FREQUENCY);
+ break;
+ case EVENT_LOW_ENERGY_UPDATE:
+ if (!watch_sleep_animation_is_running()) {
+ watch_start_sleep_animation(1000);
+ }
+ break;
+ case EVENT_LIGHT_BUTTON_DOWN:
+ // don't light up every time light is hit
+ break;
+ default:
+ movement_default_loop_handler(event);
+ break;
+ }
+
+ return true;
+}
+
+void tarot_face_resign(void *context) {
+ (void) context;
+}
--- /dev/null
+/*
+ * MIT License
+ *
+ * Copyright (c) 2022 Jeremy O'Brien
+ *
+ * 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.
+ */
+
+#ifndef TAROT_FACE_H_
+#define TAROT_FACE_H_
+
+/*
+ * TAROT CARD watch face
+ *
+ * Draw from a deck of tarot cards. Can choose between major arcana only or
+ * entire deck.
+ *
+ * In tarot reading, a card orientation can be upright or inverted, and the
+ * interpertation of the card can change depending on this state. This face
+ * lights the alarm indicator to show when a card is inverted. Just ignore it
+ * if you prefer not to deal with card inversions.
+ *
+ * This face uses the terms "Wands", "Cups", "Swords" and "Coins" for the four
+ * suits, and numbers to represent the 14 ranked cards, with the cards 11-14
+ * representing the Page, the Knight, the Queen, and King respectively.
+ *
+ * Default draw is a 3-card major arcana spread.
+ *
+ * To make it easier to keep track of where you are in the list of drawn cards,
+ * after drawing, "St" is shown for the 1st card in the spread and "En" is
+ * shown for the last card.
+ *
+ * At any point, the mode button can be held to return to your first configured
+ * watch face.
+ *
+ * When "Major" or "All" is shown:
+ * - Light button: cycle # of cards to draw
+ * - Light button (long press): toggle between major arcana and all cards
+ * - Alarm button: shuffle deck and draw cards
+ *
+ * After cards are drawn/showing:
+ * - Light button: view the next drawn card
+ * - Alarm button: shuffle and re-draw new cards
+ * - Light button (long press): go back to Draw screen, for choosing different draw parameters.
+ */
+
+#include "movement.h"
+
+#define MAX_CARDS_TO_DRAW 10
+
+typedef struct {
+ uint8_t drawn_cards[MAX_CARDS_TO_DRAW];
+ uint8_t current_card;
+ uint8_t animation_frame;
+ uint8_t num_cards_to_draw;
+ bool major_arcana_only;
+ bool is_picking;
+} tarot_state_t;
+
+void tarot_face_setup(uint8_t watch_face_index, void ** context_ptr);
+void tarot_face_activate(void *context);
+bool tarot_face_loop(movement_event_t event, void *context);
+void tarot_face_resign(void *context);
+
+#define tarot_face ((const watch_face_t){ \
+ tarot_face_setup, \
+ tarot_face_activate, \
+ tarot_face_loop, \
+ tarot_face_resign, \
+ NULL, \
+})
+
+#endif // TAROT_FACE_H_
projects / sensor-watch.git / commitdiff