Display two random side lengths to user

package.json

@@ -68,7 +68,7 @@
               ]
           },
           {
-              "characterRegex": "[ntype:θ=acuobsrigh¯¹0123456789]",
+              "characterRegex": "[?ntype:θ=acuobsrigh¯¹0123456789]",
               "file": "mansalva_regular.ttf",
               "name": "FONT_MANSALVA_REGULAR_22",
               "type": "font"

src/c/main.c

@@ -37,6 +37,9 @@ static Layer *s_division_layer;
 static Layer *s_alarm_highlight_layer;
 static MenuLayer *s_drop_menu_layer;
 static TriangleLayer *s_triangle_layer;
+static TextLayer *s_side_a_txt_layer;
+static TextLayer *s_side_b_txt_layer;
+static TextLayer *s_side_c_txt_layer;
 
 // fonts
 //// setter
@@ -79,8 +82,8 @@ static const char *s_tan;
 // alarm drop menu options
 static const char *s_options_type[3] = {"acute", "obtuse", "right"};
 static const char *s_options_function[3];
-static char *s_options_over[3];
+static char *s_options_over[2];
-static char *s_options_under[3];
+static char *s_options_under[2];
 
 /////////////////////////////////
 
@@ -535,6 +538,56 @@ static void alarm_window_load() {
 	s_triangle_layer = triangle_layer_create(GRect(0, s_top_bar_grect.size.h + 1, PBL_DISPLAY_WIDTH, PBL_DISPLAY_HEIGHT - (s_top_bar_grect.size.h * 2)), GColorBlack);
 	layer_add_child(window_layer, s_triangle_layer->layer);
 
+	// triangle measurements text layers
+	//// side_a
+	s_side_a_txt_layer = text_layer_create(GRect(0, s_bottom_bar_grect.origin.y - 27, PBL_DISPLAY_WIDTH, 23));
+	text_layer_set_background_color(s_side_a_txt_layer, GColorClear);
+	text_layer_set_font(s_side_a_txt_layer, s_font_mansalva_small);
+	text_layer_set_text_alignment(s_side_a_txt_layer, GTextAlignmentCenter);
+	layer_add_child(window_layer, text_layer_get_layer(s_side_a_txt_layer));
+	//// side_b
+	s_side_b_txt_layer = text_layer_create(GRect(-4, PBL_DISPLAY_WIDTH / 2, PBL_DISPLAY_WIDTH, 23));
+	text_layer_set_background_color(s_side_b_txt_layer, GColorClear);
+	text_layer_set_font(s_side_b_txt_layer, s_font_mansalva_small);
+	text_layer_set_text_alignment(s_side_b_txt_layer, GTextAlignmentRight);
+	layer_add_child(window_layer, text_layer_get_layer(s_side_b_txt_layer));
+	//// side_c
+	s_side_c_txt_layer = text_layer_create(GRect(4, PBL_DISPLAY_WIDTH / 2, PBL_DISPLAY_WIDTH, 23));
+	text_layer_set_background_color(s_side_c_txt_layer, GColorClear);
+	text_layer_set_font(s_side_c_txt_layer, s_font_mansalva_small);
+	layer_add_child(window_layer, text_layer_get_layer(s_side_c_txt_layer));
+	//// display 2 side lengths to the user
+	static char side_a_buffer[3], side_b_buffer[3], side_c_buffer[3];
+	uint8_t ignored_side = rand() % 3;
+	switch (ignored_side) {
+	case 0:
+		snprintf(side_b_buffer, sizeof(side_b_buffer), "%u", s_triangle_layer->side_b);
+		snprintf(side_c_buffer, sizeof(side_c_buffer), "%u", s_triangle_layer->side_c);
+		s_options_over[0] = side_b_buffer;
+		s_options_over[1] = side_c_buffer;
+		s_options_under[0] = side_b_buffer;
+		s_options_under[1] = side_c_buffer;
+		break;
+	case 1:
+		snprintf(side_a_buffer, sizeof(side_a_buffer), "%u", s_triangle_layer->side_a);
+		snprintf(side_c_buffer, sizeof(side_c_buffer), "%u", s_triangle_layer->side_c);
+		s_options_over[0] = side_a_buffer;
+		s_options_over[1] = side_c_buffer;
+		s_options_under[0] = side_a_buffer;
+		s_options_under[1] = side_c_buffer;
+		break;
+	case 2:
+		snprintf(side_a_buffer, sizeof(side_a_buffer), "%u", s_triangle_layer->side_a);
+		snprintf(side_b_buffer, sizeof(side_b_buffer), "%u", s_triangle_layer->side_b);
+		s_options_over[0] = side_a_buffer;
+		s_options_over[1] = side_b_buffer;
+		s_options_under[0] = side_a_buffer;
+		s_options_under[1] = side_b_buffer;
+	}
+	text_layer_set_text(s_side_a_txt_layer, side_a_buffer);
+	text_layer_set_text(s_side_b_txt_layer, side_b_buffer);
+	text_layer_set_text(s_side_c_txt_layer, side_c_buffer);
+
 	// drop menus
 	//// determine trigonometric function options
 	s_sin = s_sin_arr[rand() % 2];
@@ -544,10 +597,6 @@ static void alarm_window_load() {
 	s_options_function[0] = s_sin;
 	s_options_function[1] = s_cos;
 	s_options_function[2] = s_tan;
-	s_options_over[0] = "1";
-	s_options_over[1] = "2";
-	s_options_under[0] = "1";
-	s_options_under[1] = "2";
 	//// create drop window
 	s_drop_window = window_create(); // TODO destroy on window unload?
 	window_set_window_handlers(
@@ -559,6 +608,9 @@ static void alarm_window_load() {
 }
 
 static void alarm_window_unload() {
+	text_layer_destroy(s_side_a_txt_layer);
+	text_layer_destroy(s_side_b_txt_layer);
+	text_layer_destroy(s_side_c_txt_layer);
 	triangle_layer_destroy(s_triangle_layer);
 	layer_destroy(s_alarm_highlight_layer);
 	layer_destroy(s_division_layer);