Build a GDExtension with MarshConnector Node

src/marshconnector.cpp

@@ -0,0 +1,20 @@
+#include "marshconnector.h"
+#include <godot_cpp/core/class_db.hpp>
+
+using namespace godot;
+
+void MarshConnector::_bind_methods() {
+}
+
+MarshConnector::MarshConnector() {
+	// Initialize any variables here.
+	time_passed = 0.0;
+}
+
+MarshConnector::~MarshConnector() {
+	// Add your cleanup here.
+}
+
+void MarshConnector::_process(double delta) {
+	time_passed += delta;
+}

src/marshconnector.h

@@ -0,0 +1,26 @@
+#ifndef MARSHCONNECTOR_H
+#define MARSHCONNECTOR_H
+
+#include <godot_cpp/classes/node.hpp>
+
+namespace godot {
+
+class MarshConnector : public Node{
+	GDCLASS(MarshConnector, Node)
+
+private:
+	double time_passed;
+
+protected:
+	static void _bind_methods();
+
+public:
+	MarshConnector();
+	~MarshConnector();
+
+	void _process(double delta) override;
+};
+
+}
+
+#endif // MARSHCONNECTOR_H

src/register_types.cpp

@@ -0,0 +1,36 @@
+#include "register_types.h"
+
+#include "marshconnector.h"
+
+#include <gdextension_interface.h>
+#include <godot_cpp/core/defs.hpp>
+#include <godot_cpp/godot.hpp>
+
+using namespace godot;
+
+void initialize_marsh_module(ModuleInitializationLevel p_level) {
+	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
+		return;
+	}
+
+	GDREGISTER_CLASS(MarshConnector);
+}
+
+void uninitialize_marsh_module(ModuleInitializationLevel p_level) {
+	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
+		return;
+	}
+}
+
+extern "C" {
+// Initialization.
+GDExtensionBool GDE_EXPORT marsh_library_init(GDExtensionInterfaceGetProcAddress p_get_proc_address, const GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization) {
+	godot::GDExtensionBinding::InitObject init_obj(p_get_proc_address, p_library, r_initialization);
+
+	init_obj.register_initializer(initialize_marsh_module);
+	init_obj.register_terminator(uninitialize_marsh_module);
+	init_obj.set_minimum_library_initialization_level(MODULE_INITIALIZATION_LEVEL_SCENE);
+
+	return init_obj.init();
+}
+}

src/register_types.h

@@ -0,0 +1,11 @@
+#ifndef GDEXAMPLE_REGISTER_TYPES_H
+#define GDEXAMPLE_REGISTER_TYPES_H
+
+#include <godot_cpp/core/class_db.hpp>
+
+using namespace godot;
+
+void initialize_example_module(ModuleInitializationLevel p_level);
+void uninitialize_example_module(ModuleInitializationLevel p_level);
+
+#endif // GDEXAMPLE_REGISTER_TYPES_H