feat: added rally rush gamemode class

src/rally_rush_game_mode.cpp

@@ -0,0 +1,21 @@
+#include "rally_rush_game_mode.hpp"
+#include "utils/godot_macros.h"
+
+namespace godot {
+void RallyRushGameMode::_bind_methods() {
+#define CLASSNAME RallyRushGameMode
+    GDSIGNAL("key_found", PropertyInfo(Variant::INT, "total_found"));
+    GDSIGNAL("all_keys_found");
+}
+
+int RallyRushGameMode::get_num_found_keys() {
+    return this->num_keys_found;
+}
+
+void RallyRushGameMode::notify_key_found() {
+    ++this->num_keys_found;
+    this->emit_signal("key_found", num_keys_found);
+    if(num_keys_found == 3)
+        this->emit_signal("all_keys_found");
+}
+}

src/rally_rush_game_mode.hpp

@@ -0,0 +1,18 @@
+#ifndef RALLY_RUSH_GAME_MODE_HPP
+#define RALLY_RUSH_GAME_MODE_HPP
+
+#include "utils/game_mode.hpp"
+
+namespace godot {
+class RallyRushGameMode : public GameMode {
+    GDCLASS(RallyRushGameMode, GameMode);
+    static void _bind_methods();
+public:
+    int get_num_found_keys();
+    void notify_key_found();
+private:
+    int num_keys_found{0};
+};
+}
+
+#endif // !RALLY_RUSH_GAME_MODE_HPP

src/register_types.cpp

@@ -1,6 +1,7 @@
 #include "register_types.h"
 #include "car_physics.hpp"
 #include "car_player.hpp"
+#include "rally_rush_game_mode.hpp"
 #include "utils/game_mode.hpp"
 #include "utils/game_root.hpp"
 #include "utils/game_state.hpp"
@@ -28,6 +29,7 @@ void initialize_gdextension_types(ModuleInitializationLevel p_level)
 
     ClassDB::register_class<CarPhysics>();
     ClassDB::register_class<CarPlayer>();
+    ClassDB::register_class<RallyRushGameMode>();
 }
 
 extern "C"