some housekeeping

.gitignore

@@ -9,3 +9,4 @@ compile_commands.json
 include/
 !scripts/include/
 *.o
+test

Kconfig

@@ -63,15 +63,31 @@ config VECTOR_FOLLOW_TRACK_RATE
 	  This option will turn the vector from line into curve.
 	  This is of course be more computationaly expensive.
 
+config AIRCRAFT_RHOMBUS_RADIUS
+	int "Radius of rhombus or aircraft icon" 
+	range 0 65535
+	default 8
+
 config CHARACTER_SPACING
 	int "Spacing between character in pixels"
-	range 1 255
+	range 0 255
 	default 1
 
+config X_TEXT_OFFSET
+	int "X offset of text from aircraft"
+	range 0 65535
+	default 10
+
 config NO_CALLSIGN_IDENTIFICATION
 	string "Callsign used for aircraft with unknown callsign"
 	default "UNK"
 
+config EXTRA_INFO
+	bool "Enable extra information on top of the screen"
+	default 1
+	help
+	  Show information like number of tracked aircraft on top of the screen
+
 comment "Receiver configuration"
 
 config FALLBACK_LAT

src/main.cpp

@@ -17,7 +17,6 @@
 #include <iostream>
 #include <numbers>
 #include <string>
-#include <algorithm>
 
 #ifndef CONFIG_AUTOSCALE
 constexpr
@@ -95,6 +94,11 @@ int main() {
         nlohmann::json aircraft = net::http_get_json(
             std::format("{}/aircraft.json", CONFIG_BASE_URL));
         if (aircraft != nullptr) {
+#ifdef CONFIG_EXTRA_INFO
+          font::puts(
+              std::format("Tracking {} aircraft", aircraft["aircraft"].size()),
+              0, 0, {0xff, 0xff, 0xff});
+#endif
           for (nlohmann::json &craft : aircraft["aircraft"]) {
 
             uint32_t altitude;
@@ -135,9 +139,9 @@ int main() {
                   " aircraft with no ground speed or track data detected!\n";
               speed = 0;
               track = 0;
-              #ifndef CONFIG_METRIC
+#ifndef CONFIG_METRIC
               speed_knot = 0;
-              #endif
+#endif
             }
             draw::color_t color = get_altitude_color(altitude);
             try {
@@ -162,33 +166,40 @@ int main() {
               // speed in pixels per hour
               const float speed_pph = speed * pixels_per_km;
 
-
               // track in radians
               const float track_rad =
                   std::fmod((track - 90), 360.0f) *
                   (static_cast<float>(std::numbers::pi) / 180.0f);
 #ifdef CONFIG_VECTOR_FOLLOW_TRACK_RATE
-{
+              {
                 float track_rate_rads;
                 try {
-                track_rate_rads = craft["track_rate"].get<float>() * (static_cast<float>(std::numbers::pi) / 180.0f);
+                  track_rate_rads =
+                      craft["track_rate"].get<float>() *
+                      (static_cast<float>(std::numbers::pi) / 180.0f);
                 } catch (...) {
-                std::clog << YELLOW
-                  "[WARNING]" RESET
+                  std::clog
+                      << YELLOW "[WARNING]" RESET
                                 " aircraft with no track_rate data detected!\n";
                   track_rate_rads = 0;
                 }
-                draw::arc(x_center, y_center,track_rad,speed_pph/3600,track_rate_rads,CONFIG_TIME_BASED_VECTOR_LENGHT*60,color);
+                draw::arc(x_center, y_center, track_rad, speed_pph / 3600,
+                          track_rate_rads, CONFIG_TIME_BASED_VECTOR_LENGHT * 60,
+                          color);
               }
 #else
             // lenght of Time-Based Vector
             const float vector_lenght =
                 (speed_pph / 60) * CONFIG_TIME_BASED_VECTOR_LENGHT;
-            draw::line(x_center, y_center,
-                       std::clamp(x_center + (vector_lenght * std::cos(track_rad)),0.0f, static_cast<float>(UINT16_MAX)),
-                       std::clamp(y_center + (vector_lenght * std::sin(track_rad)),0.0f,static_cast<float>(UINT16_MAX)), color);
+            draw::line(
+                x_center, y_center,
+                std::clamp(x_center + (vector_lenght * std::cos(track_rad)),
+                           0.0f, static_cast<float>(UINT16_MAX)),
+                std::clamp(y_center + (vector_lenght * std::sin(track_rad)),
+                           0.0f, static_cast<float>(UINT16_MAX)),
+                color);
 #endif
-              draw::rhombus(x_center, y_center, 8 /*TODO: remove magic*/,
+              draw::rhombus(x_center, y_center, CONFIG_AIRCRAFT_RHOMBUS_RADIUS,
                             color);
 
               {
@@ -201,8 +212,9 @@ int main() {
                   callsign = CONFIG_NO_CALLSIGN_IDENTIFICATION;
                 }
                 // print some info
-                font::puts(callsign, x_center + 10 /*TODO: remove magic*/,
-                           y_center, color);
+                font::puts(callsign, x_center + CONFIG_X_TEXT_OFFSET,
+                           y_center - (FONT_HEIGHT + CONFIG_CHARACTER_SPACING),
+                           color);
                 font::puts(std::to_string(static_cast<uint16_t>(
 #ifdef CONFIG_METRIC
                                speed
@@ -211,10 +223,11 @@ int main() {
 #endif
                                )) +
                                SPEED_UNIT,
-                           x_center + 10 /*TODO: remove magic*/,
-                           y_center + FONT_HEIGHT + CONFIG_CHARACTER_SPACING,
+                           x_center + CONFIG_X_TEXT_OFFSET, y_center, color);
+                font::puts(std::to_string(altitude) + ALTITUDE_UNIT,
+                           x_center + CONFIG_X_TEXT_OFFSET,
+                           y_center + (FONT_HEIGHT + CONFIG_CHARACTER_SPACING),
                            color);
-                font::puts(std::to_string(altitude) + ALTITUDE_UNIT, x_center + 10 /*TODO: remove magic*/, y_center + (FONT_HEIGHT + CONFIG_CHARACTER_SPACING)*2,color);
               }
             } catch (...) {
               std::clog << YELLOW "[WARNING]" RESET