Add discord rich presence

.gitmodules

@@ -22,3 +22,6 @@
 [submodule "deps/udis86"]
 	path = deps/udis86
 	url = https://github.com/vmt/udis86.git
+[submodule "deps/discord-rpc"]
+	path = deps/discord-rpc
+	url = https://github.com/momo5502/discord-rpc.git

deps/discord-rpc

@@ -0,0 +1 @@
+Subproject commit 963aa9f3e5ce81a4682c6ca3d136cddda614db33

deps/premake/discord-rpc.lua

@@ -0,0 +1,39 @@
+discordrpc = {
+	source = path.join(dependencies.basePath, "discord-rpc"),
+}
+
+function discordrpc.import()
+	links { "discord-rpc" }
+	discordrpc.includes()
+end
+
+function discordrpc.includes()
+	includedirs {
+		path.join(discordrpc.source, "include"),
+	}
+end
+
+function discordrpc.project()
+	project "discord-rpc"
+		language "C++"
+
+		discordrpc.includes()
+		rapidjson.import();
+
+		files {
+			path.join(discordrpc.source, "src/*.h"),
+			path.join(discordrpc.source, "src/*.cpp"),
+		}
+		
+		removefiles {
+			path.join(discordrpc.source, "src/dllmain.cpp"),
+			path.join(discordrpc.source, "src/*_linux.cpp"),
+			path.join(discordrpc.source, "src/*_unix.cpp"),
+			path.join(discordrpc.source, "src/*_osx.cpp"),
+		}
+
+		warnings "Off"
+		kind "StaticLib"
+end
+
+table.insert(dependencies, discordrpc)

src/client/component/discord.cpp

@@ -0,0 +1,75 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+
+#include <discord_rpc.h>
+
+#include "scheduler.hpp"
+
+namespace discord
+{
+	namespace
+	{
+		void ready(const DiscordUser* /*request*/)
+		{
+			printf("Discord: Ready\n");
+
+			DiscordRichPresence discord_presence{};
+			ZeroMemory(&discord_presence, sizeof(discord_presence));
+
+			discord_presence.instance = 1;
+			//discord_presence.state = "BOIII";
+
+			discord_presence.partySize = 0;
+			discord_presence.partyMax = 0;
+			discord_presence.startTimestamp = 0;
+
+			Discord_UpdatePresence(&discord_presence);
+		}
+
+		void errored(const int error_code, const char* message)
+		{
+			printf("Discord: Error (%i): %s\n", error_code, message);
+		}
+	}
+
+	class component final : public component_interface
+	{
+	public:
+		void post_load() override
+		{
+			DiscordEventHandlers handlers;
+			ZeroMemory(&handlers, sizeof(handlers));
+			handlers.ready = ready;
+			handlers.errored = errored;
+			handlers.disconnected = errored;
+			handlers.joinGame = nullptr;
+			handlers.spectateGame = nullptr;
+			handlers.joinRequest = nullptr;
+
+			Discord_Initialize("1047539933922988112", &handlers, 1, nullptr);
+
+			this->initialized_ = true;
+
+			scheduler::once([]()
+			{
+				scheduler::once(Discord_RunCallbacks, scheduler::pipeline::async);
+				scheduler::loop(Discord_RunCallbacks, scheduler::pipeline::async, 15s);
+			}, scheduler::pipeline::main);
+		}
+
+		void pre_destroy() override
+		{
+			if (this->initialized_)
+			{
+				Discord_Shutdown();
+			}
+		}
+
+	private:
+		bool initialized_ = false;
+	};
+}
+
+#ifndef DEV_BUILD
+REGISTER_COMPONENT(discord::component)
+#endif