add the boilerplate

.gitignore

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+.vs/
+*.o
+*.swp
+~*
+*~
+.idea/
+cmake-build-debug/
+cmake-build-debugandtest/
+cmake-build-release/
+*.stackdump
+*.coredump
+compile_commands.json
+/build*
+/result*
+.clangd
+.cache
+
+.DS_Store
+.AppleDouble
+.LSOverride
+
+CMakeLists.txt.user*
+CMakeCache.txt
+
+*.tox
+imgui.ini

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.24 FATAL_ERROR)
+
+# cmake setup begin
+project(solanaceae_message_n10n)
+
+if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+	set(SOLANACEAE_MESSAGE_N10N_STANDALONE ON)
+else()
+	set(SOLANACEAE_MESSAGE_N10N_STANDALONE OFF)
+endif()
+message("II SOLANACEAE_MESSAGE_N10N_STANDALONE " ${SOLANACEAE_MESSAGE_N10N_STANDALONE})
+
+option(SOLANACEAE_MESSAGE_N10N_BUILD_PLUGINS "Build the message_n10n plugins" ${SOLANACEAE_MESSAGE_N10N_STANDALONE})
+
+if (SOLANACEAE_MESSAGE_N10N_STANDALONE)
+	set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+	# defaulting to debug mode, if not specified
+	if(NOT CMAKE_BUILD_TYPE)
+		set(CMAKE_BUILD_TYPE "Debug")
+	endif()
+
+	# setup my vim ycm :D
+	set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+	# more paths
+	set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
+	set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
+	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
+endif()
+
+# external libs
+add_subdirectory(./external EXCLUDE_FROM_ALL) # before increasing warn levels, sad :(
+
+if (SOLANACEAE_MESSAGE_N10N_STANDALONE)
+	set(CMAKE_CXX_EXTENSIONS OFF)
+
+	# bump up warning levels appropriately for clang, gcc & msvc
+	if (${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU" OR ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+		add_compile_options(
+			-Wall -Wextra # Reasonable and standard
+			-Wpedantic # Warn if non-standard C++ is used
+			-Wunused # Warn on anything being unused
+			#-Wconversion # Warn on type conversions that may lose data
+			#-Wsign-conversion # Warn on sign conversions
+			-Wshadow # Warn if a variable declaration shadows one from a parent context
+		)
+
+		if (NOT WIN32)
+			#link_libraries(-fsanitize=address)
+			#link_libraries(-fsanitize=address,undefined)
+			#link_libraries(-fsanitize-address-use-after-scope)
+			#link_libraries(-fsanitize=undefined)
+		endif()
+	elseif (${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
+		if (CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
+			string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+		else()
+			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
+		endif()
+	endif()
+
+endif()
+
+# cmake setup end
+
+add_subdirectory(./src)
+
+if (SOLANACEAE_MESSAGE_N10N_BUILD_PLUGINS)
+	add_subdirectory(./plugins)
+endif()
+

external/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.24 FATAL_ERROR)
+
+include(FetchContent)
+
+if (NOT TARGET solanaceae_message3)
+	FetchContent_Declare(solanaceae_message3
+		GIT_REPOSITORY https://github.com/Green-Sky/solanaceae_message3.git
+		GIT_TAG master
+		EXCLUDE_FROM_ALL
+	)
+	FetchContent_MakeAvailable(solanaceae_message3)
+endif()
+
+if (NOT TARGET solanaceae_plugin)
+	FetchContent_Declare(solanaceae_plugin
+		GIT_REPOSITORY https://github.com/Green-Sky/solanaceae_plugin.git
+		GIT_TAG master
+		EXCLUDE_FROM_ALL
+	)
+	FetchContent_MakeAvailable(solanaceae_plugin)
+endif()
+

plugins/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.9...3.24 FATAL_ERROR)
+
+add_library(plugin_message_n10n SHARED
+	./plugin_message_n10n.cpp
+)
+
+target_link_libraries(plugin_message_n10n PUBLIC
+	solanaceae_plugin
+	solanaceae_message_n10n
+)
+

plugins/plugin_message_n10n.cpp

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+#include <solanaceae/plugin/solana_plugin_v1.h>
+
+#include "message_n10n.hpp"
+
+#include <iostream>
+
+static std::unique_ptr<MessageN10n> g_mn10n = nullptr;
+
+constexpr const char* plugin_name = "MessageN10n";
+
+extern "C" {
+
+SOLANA_PLUGIN_EXPORT const char* solana_plugin_get_name(void) {
+	return plugin_name;
+}
+
+SOLANA_PLUGIN_EXPORT uint32_t solana_plugin_get_version(void) {
+	return SOLANA_PLUGIN_VERSION;
+}
+
+SOLANA_PLUGIN_EXPORT uint32_t solana_plugin_start(struct SolanaAPI* solana_api) {
+	std::cout << "PLUGIN " << plugin_name << " START()\n";
+
+	if (solana_api == nullptr) {
+		return 1;
+	}
+
+	try {
+		//auto* cr = PLUG_RESOLVE_INSTANCE_VERSIONED(Contact3Registry, "1");
+		auto* rmm = PLUG_RESOLVE_INSTANCE(RegistryMessageModel);
+
+		// static store, could be anywhere tho
+		// construct with fetched dependencies
+		g_mn10n = std::make_unique<MessageN10n>(*rmm);
+
+		// register types
+		PLUG_PROVIDE_INSTANCE(MessageN10n, plugin_name, g_mn10n.get());
+	} catch (const ResolveException& e) {
+		std::cerr << "PLUGIN " << plugin_name << " " << e.what << "\n";
+		return 2;
+	}
+
+	return 0;
+}
+
+SOLANA_PLUGIN_EXPORT void solana_plugin_stop(void) {
+	std::cout << "PLUGIN " << plugin_name << " STOP()\n";
+
+	g_mn10n.reset();
+}
+
+SOLANA_PLUGIN_EXPORT float solana_plugin_tick(float) {
+	//return g_rpbot->tick(delta);
+	return 1000.f;
+}
+
+} // extern C
+

src/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.9...3.24 FATAL_ERROR)
+
+project(solanaceae)
+
+add_library(solanaceae_message_n10n
+	./message_n10n.hpp
+	./message_n10n.cpp
+)
+
+target_include_directories(solanaceae_message_n10n PUBLIC .)
+target_compile_features(solanaceae_message_n10n PUBLIC cxx_std_17)
+target_link_libraries(solanaceae_message_n10n PUBLIC
+	solanaceae_message3
+)
+
+########################################
+

src/message_n10n.cpp

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+#include "./message_n10n.hpp"
+
+#include <solanaceae/message3/components.hpp>
+
+MessageN10n::MessageN10n(RegistryMessageModel& rmm) : _rmm(rmm) {
+}
+
+MessageN10n::~MessageN10n(void) {
+}
+
+bool MessageN10n::onEvent(const Message::Events::MessageConstruct& e) {
+	if (!e.e.all_of<Message::Components::MessageText>()) {
+		return false;
+	}
+
+	return false;
+}
+

src/message_n10n.hpp

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+#pragma once
+
+#include <solanaceae/message3/registry_message_model.hpp>
+
+class MessageN10n : public RegistryMessageModelEventI {
+	RegistryMessageModel& _rmm;
+
+	public:
+		MessageN10n(RegistryMessageModel& rmm);
+		virtual ~MessageN10n(void);
+
+	protected: // rmm
+		bool onEvent(const Message::Events::MessageConstruct& e) override;
+};
+