sensor-watch/movement/watch_faces/complication/geomancy_face.c
2023-05-18 07:44:50 -04:00

362 lines
13 KiB
C

/*
* MIT License
*
* Copyright (c) 2023 Tobias Raayoni Last / @randogoth
*
* 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 "toss_up_face.h"
#include "geomancy_face.h"
// CONSTANTS //////////////////////////////////////////////////////////////////
// The Bagua 八卦 Trigrams encoded as 3bit tribbles, represented as binary integer
static const uint32_t bagua = 0b00000101001110010111011100000000;
// The King Wen Sequence 文王卦序 of the I Ching 易經 Hexagrams 卦 encoded as an array
// of decimal integers in the order of two combined Trigram tribbles from 0b000000 to
// 0b111111
static const uint8_t wen_order[] = {
1, 22, 7, 19, 15, 34, 44, 11,
14, 51, 38, 52, 61, 55, 30, 32,
6, 3, 28, 58, 39, 63, 46, 5,
45, 17, 47, 56, 31, 49, 27, 43,
23, 26, 2, 41, 50, 20, 16, 24,
35, 21, 62, 36, 54, 29, 48, 12,
18, 40, 59, 60, 53, 37, 57, 9,
10, 25, 4, 8, 33, 13, 42, 0
};
// The geomantic figures encoded as 4 bit nibbles, represented as hexadecimal integer
static const uint64_t geomantic = 0x4ABF39D25E76C180;
// Abbreviations of the Names of the Geomantic Figures in the order of the 4 bit nibbles
// from 0b0000 to 0b1111
static const char figures[16][2] = {
"VI" /* Via */, "Hd" /* Head of the Dragon */, "PA" /* Puella */, "GF" /* Greater Fortune*/,
"PR" /* Puer */, "AQ" /* Acquisitio */, "CA" /* Carcer */, "TR" /* Tristitia */,
"Td" /* Tail of the Dragon */, "CO" /* Conjunctio */, "AM" /* Amissio */, "AL" /* Albus */,
"LF" /* Lesser Fortune */, "RU" /* Rubeus */, "LA" /* Laetitia */, "PO" /* Populus */
};
// DECLARATIONS ///////////////////////////////////////////////////////////////
static void geomancy_face_display(geomancy_state_t *state);
static nibble_t _geomancy_pick_figure(void);
static tribble_t _iching_pick_trigram(void);
static uint8_t _iching_form_hexagram(void);
static void _geomancy_display(nibble_t code);
static void _display_hexagram(uint8_t hexagram, char* str);
static void _fix_broken_line(uint8_t hexagram);
static void _throw_animation(geomancy_state_t *state);
// WATCH FACE FUNCTIONS ///////////////////////////////////////////////////////
void geomancy_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
(void) watch_face_index;
(void) settings;
if (*context_ptr == NULL) {
*context_ptr = malloc(sizeof(geomancy_state_t));
memset(*context_ptr, 0, sizeof(geomancy_state_t));
}
}
void geomancy_face_activate(movement_settings_t *settings, void *context) {
(void) settings;
(void) context;
}
bool geomancy_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
geomancy_state_t *state = (geomancy_state_t *)context;
switch (event.event_type) {
case EVENT_ACTIVATE:
state->animate = false;
state->animation = 0;
watch_display_string(" IChing", 0);
break;
case EVENT_TICK:
if ( state->animate ) {
state->animation = (state->animation + 1) % 39;
geomancy_face_display(state);
}
break;
case EVENT_LIGHT_BUTTON_DOWN:
break;
case EVENT_LIGHT_BUTTON_UP:
if ( state->animate ) break;
if ( state->mode <= 1 ) state->mode = 2;
else if ( state->mode >= 2 ) state->mode = 0;
geomancy_face_display(state);
break;
case EVENT_ALARM_BUTTON_UP:
if ( state->animate ) break;
switch ( state->mode ) {
case 0:
state->mode++;
// fall through
case 1:
state->animate = true;
state->i_ching_hexagram = _iching_form_hexagram();
break;
case 2:
state->mode++;
// fall through
case 3:
state->animate = true;
state->geomantic_figure = _geomancy_pick_figure().bits;
break;
default:
break;
}
geomancy_face_display(state);
break;
case EVENT_ALARM_LONG_PRESS:
if ( state->animate ) break;
state->caption = !state->caption;
watch_display_string(" ", 0);
geomancy_face_display(state);
break;
default:
return movement_default_loop_handler(event, settings);
}
return true;
}
void geomancy_face_resign(movement_settings_t *settings, void *context) {
(void) settings;
(void) context;
}
// STATIC FUNCTIONS ///////////////////////////////////////////////////////////
/** @brief display handler */
static void geomancy_face_display(geomancy_state_t *state) {
char token[7] = {0};
nibble_t figure = *((nibble_t*) &state->geomantic_figure);
switch ( state->mode ) {
case 0:
watch_display_string(" IChing", 0);
break;
case 1:
_throw_animation(state);
if ( !state->animate ) {
_display_hexagram(state->i_ching_hexagram, token);
watch_display_string(token, 4);
_fix_broken_line(state->i_ching_hexagram);
if (state->caption) {
sprintf(token, "%2d", wen_order[state->i_ching_hexagram] + 1);
watch_display_string(token, 2);
}
}
break;
case 2:
watch_display_string(" GeomCy", 0);
break;
case 3:
_throw_animation(state);
if ( !state->animate ) {
if ( state->caption ) {
sprintf(token, "%c%c", figures[state->geomantic_figure][0], figures[state->geomantic_figure][1]);
watch_display_string(token, 0);
}
_geomancy_display(figure);
}
break;
default:
break;
}
}
/** @brief screen clearing animation between castings */
static void _throw_animation(geomancy_state_t *state) {
movement_request_tick_frequency(16);
switch ( state->animation ) {
case 0:
watch_set_pixel(0, 22);
break;
case 1:
watch_set_pixel(2, 22);
watch_set_pixel(2, 23);
watch_clear_pixel(0, 22);
break;
case 2:
watch_set_pixel(1, 22);
watch_set_pixel(0, 23);
break;
case 3:
watch_set_pixel(2, 0);
watch_set_pixel(1, 0);
watch_set_pixel(2, 21);
watch_set_pixel(1, 21);
watch_clear_pixel(2, 22);
watch_clear_pixel(1, 22);
watch_clear_pixel(2, 23);
watch_clear_pixel(0, 23);
watch_clear_pixel(1, 23);
break;
case 4:
watch_set_pixel(1, 17);
watch_set_pixel(0, 20);
watch_set_pixel(2, 10);
watch_set_pixel(0, 1);
break;
case 5:
watch_clear_pixel(2, 21);
watch_clear_pixel(1, 21);
watch_clear_pixel(2, 0);
watch_clear_pixel(1, 0);
watch_clear_pixel(1, 20);
watch_clear_pixel(2, 20);
watch_clear_pixel(0, 21);
watch_clear_pixel(1, 1);
watch_clear_pixel(0, 0);
watch_clear_pixel(2, 1);
watch_set_pixel(2, 19);
watch_set_pixel(0, 19);
watch_set_pixel(1, 2);
watch_set_pixel(0, 2);
break;
case 6:
watch_clear_pixel(1, 17);
watch_clear_pixel(0, 20);
watch_clear_pixel(2, 10);
watch_clear_pixel(0, 1);
watch_set_pixel(2, 18);
watch_set_pixel(0, 18);
watch_set_pixel(2, 3);
watch_set_pixel(0, 4);
break;
case 7:
watch_clear_pixel(2, 19);
watch_clear_pixel(0, 19);
watch_clear_pixel(1, 18);
watch_clear_pixel(1, 19);
watch_clear_pixel(1, 2);
watch_clear_pixel(0, 2);
watch_clear_pixel(1, 3);
watch_clear_pixel(0, 3);
watch_clear_pixel(2, 2);
watch_set_pixel(1, 4);
watch_set_pixel(0, 5);
break;
case 8:
watch_clear_pixel(2, 18);
watch_clear_pixel(0, 18);
watch_clear_pixel(2, 3);
watch_clear_pixel(0, 4);
watch_set_pixel(2, 5);
watch_set_pixel(1, 6);
break;
case 9:
watch_clear_pixel(1, 4);
watch_clear_pixel(0, 5);
watch_clear_pixel(1, 5);
watch_clear_pixel(2, 4);
watch_clear_pixel(0, 6);
break;
case 10:
watch_clear_pixel(2, 5);
watch_clear_pixel(1, 6);
break;
case 11:
state->animate = false;
state->animation = 0;
movement_request_tick_frequency(1);
break;
}
}
// I CHING FUNCTIONS //////////////////////////////////////////////////////////
/** @brief form a trigram from three random bit picks
*/
static tribble_t _iching_pick_trigram(void) {
uint8_t index = (divine_bit() << 2) | (divine_bit() << 1) | divine_bit();
tribble_t trigram = {(bagua >> (3 * index)) & 0b111};
return trigram;
}
/** @brief form a hexagram from two trigrams
*/
static uint8_t _iching_form_hexagram(void);
static uint8_t _iching_form_hexagram(void) {
tribble_t inner = _iching_pick_trigram();
tribble_t outer = _iching_pick_trigram();
uint8_t hexagram = (inner.bits << 3) | outer.bits;
return hexagram;
}
/** @brief display hexagram
* @details | for unbroken lines and Ξ for broken lines, left of display is bottom
*/
static void _display_hexagram(uint8_t hexagram, char* str);
static void _display_hexagram(uint8_t hexagram, char* str) {
str[6] = '\0'; // Null-terminate the string
for (uint8_t i = 0; i < 6; i++) {
if (hexagram & (1 << (5 - i))) {
str[i] = '1';
} else {
str[i] = '=';
}
}
}
/** @brief when Ξ digits show as = then manually add a line on top
*/
static void _fix_broken_line(uint8_t hexagram) {
for (uint8_t i = 0; i < 6; i++) {
if (!(hexagram & (1 << (5 - i)))) {
if ( i == 1 ) watch_set_pixel(2, 20);
if ( i == 3 ) watch_set_pixel(2, 1);
if ( i == 4 ) watch_set_pixel(2, 2);
if ( i == 5 ) watch_set_pixel(2, 4);
}
}
}
// GEOMANCY FUNCTIONS /////////////////////////////////////////////////////////
/** @brief choose a geomantic figure from four random bits
* @details 0 represents · and 1 represents : counting from the bottom
*/
static nibble_t _geomancy_pick_figure(void);
static nibble_t _geomancy_pick_figure(void) {
uint8_t index = (divine_bit() << 3) | (divine_bit() << 2) | (divine_bit() << 1) | divine_bit();
nibble_t figure = {(geomantic >> (4 * (15 - index))) & 0xF};
return figure;
}
/** @brief display the geomantic figure, left of display is bottom
*/
static void _geomancy_display(nibble_t code) {
// draw geomantic figures
bool row1 = (code.bits >> 3) & 1;
bool row2 = (code.bits >> 2) & 1;
bool row3 = (code.bits >> 1) & 1;
bool row4 = code.bits & 1;
if ( row1 ) watch_set_pixel(1, 18); else watch_set_pixel(1, 19);
if ( row2 ) { watch_set_pixel(2, 20); watch_set_pixel(0, 21);} else watch_set_pixel(1, 20);
if ( row3 ) watch_set_pixel(0, 22); else watch_set_pixel(1, 23);
if ( row4 ) { watch_set_pixel(2, 1); watch_set_pixel(0, 0);} else watch_set_pixel(1, 1);
}