Send continuous pavlok zaps on the first triangle once any timer has expired

src/c/main.c

@@ -70,7 +70,9 @@ static uint8_t s_solution_indices[3];
 static uint8_t s_selected_indices[3] = {9, 9, 9};
 static uint8_t s_secs_since_last_input;
 static uint8_t s_shake_cooldown;
+static uint8_t s_zap_cooldown;
 static uint8_t s_countdown_int = 0;
+static bool s_continuous_zap_on_first_triangle;
 static char s_countdown_buf[4];
 static char s_progress_buf[9];
 
@@ -83,6 +85,7 @@ static const GColor s_primary_color = GColorJaegerGreen;
 //// alarm
 #define MAX_SECS_WITHOUT_INPUT 10
 #define SHAKE_COOLDOWN_SECS 2
+#define ZAP_COOLDOWN_SECS 4
 static const uint8_t s_drop_height = 22;
 static const GRect s_drop_function_grect = GRect(PBL_IF_ROUND_ELSE(55, 45), s_bottom_bar_grect.origin.y + ((s_bottom_bar_grect.size.h / 2) - PBL_IF_ROUND_ELSE(s_drop_height - 1, s_drop_height / 2)), 50, s_drop_height);
 static const GRect s_drop_over_grect = GRect(s_drop_function_grect.origin.x + 78, s_drop_function_grect.origin.y - 13, s_drop_function_grect.size.w + 1, s_drop_function_grect.size.h);
@@ -281,8 +284,8 @@ static void inbox_received_handler(DictionaryIterator *iter, void *context) {
 	persist_write_data(STORAGE_KEY_SETTINGS, &settings, sizeof(settings));
 }
 
-static void send_zap(uint8_t intensity) {
-	if (!settings.PavlokEnabled) {
+static void send_zap() {
+	if (!settings.PavlokEnabled || s_zap_cooldown != 0) {
 		return;
 	}
 
@@ -291,11 +294,13 @@ static void send_zap(uint8_t intensity) {
 	if (result != APP_MSG_OK) {
 		return;
 	}
-	dict_write_uint8(out, MESSAGE_KEY_PKJS_PAVLOK_ZAP, intensity);
+	dict_write_uint8(out, MESSAGE_KEY_PKJS_PAVLOK_ZAP, settings.PavlokIntensity);
 	result = app_message_outbox_send();
 	if (result != APP_MSG_OK) {
 		return;
 	}
+
+	s_zap_cooldown = ZAP_COOLDOWN_SECS;
 }
 
 ////////////////////// ALARM //////////////////////
@@ -450,25 +455,30 @@ static void increment_secs_since_last_input() {
 	}
 }
 
-static void decrement_shake_cooldown() {
-	if (s_shake_cooldown != 0) {
-		s_shake_cooldown--;
+static void decrement_cooldown(uint8_t *cooldown) {
+	if (*cooldown != 0) {
+		(*cooldown)--;
 	}
 }
 
 static void alarm_seconds_handler(struct tm *tick_time, TimeUnits units_changed) {
 	s_countdown_int--;
-	decrement_shake_cooldown();
+	decrement_cooldown(&s_shake_cooldown);
 	if (s_current_triangle_num == 1) {
+		decrement_cooldown(&s_zap_cooldown);
 		increment_secs_since_last_input();
-		if (s_secs_since_last_input >= MAX_SECS_WITHOUT_INPUT) { // pause vibrations during user input; this fixes shake detection and saves battery
+		if (s_secs_since_last_input >= MAX_SECS_WITHOUT_INPUT) { // pause stimulus during user input; this fixes shake detection and saves battery
 			vibes_enqueue_custom_pattern(s_first_triangle_vibe_pattern);
+			if (s_continuous_zap_on_first_triangle) {
+				send_zap();
+			}
 		}
 	}
 	snprintf(s_countdown_buf, sizeof(s_countdown_buf), "%03u", s_countdown_int);
 	text_layer_set_text(s_countdown_txt_layer, s_countdown_buf);
 	if (s_countdown_int == 0) {
-		send_zap(settings.PavlokIntensity);
+		s_continuous_zap_on_first_triangle = true; // begin zapping once the first countdown expires
+		send_zap();
 		if (s_current_triangle_num > 1) {
 			s_current_triangle_num--;
 		}
@@ -784,6 +794,8 @@ static void alarm_window_load() {
 	// configure UI around current triangle in s_triangle_layer
 	s_current_triangle_num = 1;
 	s_secs_since_last_input = MAX_SECS_WITHOUT_INPUT;
+	s_continuous_zap_on_first_triangle = false;
+	s_zap_cooldown = 0;
 	update_for_new_triangle();
 
 	// schedule recovery alarm and begin countdown :)
@@ -824,7 +836,7 @@ static void alarm_window_unload() {
 
 static void push_alarm_window() {
 	if (s_alarm_reason == WAKE_RECOVERY_ALARM) {
-		send_zap(settings.PavlokIntensity);
+		send_zap();
 	}
 
 	window_set_window_handlers(