--- /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"
+
+#define NUM_TAROT_CARDS 22
+#define TAROT_ANIMATION_TICK_FREQUENCY 8
+
+
+// --------------
+// Custom methods
+// --------------
+
+static char *major_arcana[NUM_TAROT_CARDS] = {
+ " FOOL ",
+ "Mgcian",
+ "HiPrst",
+ "Empres",
+ "Empror",
+ "Hiroph",
+ "Lovers",
+ "Chriot",
+ "Strgth",
+ "Hermit",
+ " Frtun",
+ "Justce",
+ "HngMan",
+ " Death",
+ " tmprn",
+ " Devil",
+ " Tower",
+ " Star",
+ " MOON ",
+ " Sun ",
+ "Jdgmnt",
+ " World",
+};
+
+static void tarot_display(tarot_state_t *state) {
+ char buf[8];
+
+ if (state->drawn_cards[0] != 0xff) {
+ sprintf(buf, "%d", state->current_card + 1);
+ watch_display_string(buf, 3);
+ sprintf(buf, "%s", major_arcana[state->drawn_cards[state->current_card]]);
+ watch_display_string(buf, 4);
+ }
+}
+
+static uint8_t draw_one_card(void) {
+ // Emulator: use rand. Hardware: use arc4random.
+#if __EMSCRIPTEN__
+ return rand() % NUM_TAROT_CARDS;
+#else
+ return arc4random_uniform(NUM_TAROT_CARDS);
+#endif
+}
+
+static void pick_cards(tarot_state_t *state) {
+ // this is all a bit verbose but I prefer simplicity over clever tricks
+ state->drawn_cards[0] = draw_one_card();
+
+ state->drawn_cards[1] = draw_one_card();
+ while (state->drawn_cards[1] == state->drawn_cards[0])
+ state->drawn_cards[1] = draw_one_card();
+
+ state->drawn_cards[2] = draw_one_card();
+ while (state->drawn_cards[2] == state->drawn_cards[1] ||
+ state->drawn_cards[2] == state->drawn_cards[0])
+ state->drawn_cards[2] = draw_one_card();
+
+ state->current_card = 0;
+}
+
+static void display_animation(tarot_state_t *state) {
+ if (state->is_picking) {
+ 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);
+ state->current_card = 0;
+ state->drawn_cards[0] = 0xff;
+}
+
+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:
+ watch_display_string(" DRAW ", 4);
+ break;
+ case EVENT_TICK:
+ display_animation(state);
+ break;
+ case EVENT_MODE_BUTTON_UP:
+ movement_move_to_next_face();
+ break;
+ case EVENT_LIGHT_BUTTON_UP:
+ // Change how many sides the die has
+ if (state->drawn_cards[0] != 0xff) {
+ state->current_card = (state->current_card + 1) % 3;
+ tarot_display(state);
+ }
+ break;
+ case EVENT_ALARM_BUTTON_UP:
+ // Draw cards
+ watch_display_string(" ", 4);
+ 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;
+ default:
+ break;
+ }
+
+ return true;
+}
+
+void tarot_face_resign(movement_settings_t *settings, void *context) {
+ (void) settings;
+ (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_
+
+#include "movement.h"
+
+typedef struct {
+ uint8_t drawn_cards[3];
+ uint8_t current_card;
+ uint8_t animation_frame;
+ bool is_picking;
+} tarot_state_t;
+
+void tarot_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
+void tarot_face_activate(movement_settings_t *settings, void *context);
+bool tarot_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
+void tarot_face_resign(movement_settings_t *settings, 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