Port beats to movement framework

movement/make/Makefile

@@ -32,6 +32,7 @@ SRCS += \
   ../watch_faces/thermistor/thermistor_driver.c \
   ../watch_faces/thermistor/thermistor_readout_face.c \
   ../watch_faces/demos/character_set_face.c \
+  ../watch_faces/complications/beats_face.c \
 
 # Leave this line at the bottom of the file; it has all the targets for making your project.
 include $(TOP)/rules.mk

movement/movement_config.h

@@ -7,6 +7,7 @@
 #include "pulsometer_face.h"
 #include "thermistor_readout_face.h"
 #include "character_set_face.h"
+#include "beats_face.h"
 
 const watch_face_t watch_faces[] = {
     simple_clock_face,

movement/watch_faces/complications/beats_face.c

@@ -0,0 +1,75 @@
+#include <stdlib.h>
+#include <string.h>
+#include "beats_face.h"
+#include "watch.h"
+
+const uint8_t UTC_OFFSET = 4; // set to your current UTC offset to see correct beats time
+const uint8_t BEAT_REFRESH_FREQUENCY = 8;
+
+void beats_face_setup(movement_settings_t *settings, void ** context_ptr) {
+    (void) settings;
+    (void) context_ptr;
+}
+
+void beats_face_activate(movement_settings_t *settings, void *context) {
+    (void) settings;
+    (void) context;
+    movement_request_tick_frequency(BEAT_REFRESH_FREQUENCY);
+}
+
+bool beats_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
+    (void) settings;
+    (void) context;
+
+    char buf[14];
+    float beats;
+
+    watch_date_time date_time;
+    switch (event.event_type) {
+        case EVENT_TICK:
+            date_time = watch_rtc_get_date_time();
+            beats = clock2beats(date_time.unit.hour, date_time.unit.minute, date_time.unit.second, event.subsecond, UTC_OFFSET);
+            sprintf(buf, "bt  %6.0f", beats * 100);
+
+            watch_display_string(buf, 0);
+            break;
+        case EVENT_LOW_ENERGY_UPDATE:
+            date_time = watch_rtc_get_date_time();
+            beats = clock2beats(date_time.unit.hour, date_time.unit.minute, date_time.unit.second, event.subsecond, UTC_OFFSET);
+            sprintf(buf, "bt  %4d  ", (int)beats);
+
+            watch_display_string(buf, 0);
+            break;
+        case EVENT_MODE_BUTTON_UP:
+            movement_move_to_next_face();
+            break;
+        case EVENT_LIGHT_BUTTON_DOWN:
+            movement_illuminate_led();
+            break;
+        case EVENT_ALARM_BUTTON_DOWN:
+        case EVENT_ALARM_BUTTON_UP:
+        case EVENT_ALARM_LONG_PRESS:
+        default:
+            break;
+    }
+
+    return true;
+}
+
+void beats_face_resign(movement_settings_t *settings, void *context) {
+    (void) settings;
+    (void) context;
+    movement_request_tick_frequency(1);
+}
+
+float clock2beats(uint16_t hours, uint16_t minutes, uint16_t seconds, uint16_t subseconds, int16_t utc_offset) {
+    float beats = seconds + ((float)subseconds / (float)BEAT_REFRESH_FREQUENCY);
+    beats += 60 * minutes;
+    beats += (float)hours * 60 * 60;
+    beats += (utc_offset + 1) * 60 * 60; // offset from utc + 1 since beats in in UTC+1
+
+    beats /= 86.4; // convert to beats
+    while(beats > 1000) beats -= 1000; // beats %= 1000 but for a float
+
+    return beats;
+}

movement/watch_faces/complications/beats_face.h

@@ -0,0 +1,20 @@
+#ifndef BEATS_FACE_H_
+#define BEATS_FACE_H_
+
+#include "movement.h"
+
+float clock2beats(uint16_t, uint16_t, uint16_t, uint16_t, int16_t);
+void beats_face_setup(movement_settings_t *settings, void ** context_ptr);
+void beats_face_activate(movement_settings_t *settings, void *context);
+bool beats_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
+void beats_face_resign(movement_settings_t *settings, void *context);
+
+static const watch_face_t beats_face = {
+    beats_face_setup,
+    beats_face_activate,
+    beats_face_loop,
+    beats_face_resign,
+    NULL
+};
+
+#endif // BEATS_FACE_H_