From 862a115b08017e02b45a786e59feb436d1de278f Mon Sep 17 00:00:00 2001
From: BobTheBob <32057864+BobTheBob9@users.noreply.github.com>
Date: Wed, 11 May 2022 14:11:37 +0100
Subject: move hoststate to its own file and add host_init hooks

---
 NorthstarDedicatedTest/hoststate.cpp | 107 +++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 NorthstarDedicatedTest/hoststate.cpp

(limited to 'NorthstarDedicatedTest/hoststate.cpp')

diff --git a/NorthstarDedicatedTest/hoststate.cpp b/NorthstarDedicatedTest/hoststate.cpp
new file mode 100644
index 00000000..4782b559
--- /dev/null
+++ b/NorthstarDedicatedTest/hoststate.cpp
@@ -0,0 +1,107 @@
+#include "pch.h"
+#include "hoststate.h"
+#include "masterserver.h"
+#include "serverauthentication.h"
+#include "playlist.h"
+#include "gameutils.h"
+#include "tier0.h"
+
+using namespace R2;
+
+// use the R2 namespace for game funcs
+namespace R2
+{
+	CHostState* g_pHostState;
+} // namespace R2
+
+typedef void (*CHostState__State_NewGameType)(CHostState* hostState);
+CHostState__State_NewGameType CHostState__State_NewGame;
+void CHostState__State_NewGameHook(CHostState* hostState)
+{
+	spdlog::info("HostState: NewGame");
+
+	Cbuf_AddText(Cbuf_GetCurrentPlayer(), "exec autoexec_ns_server", cmd_source_t::kCommandSrcCode);
+	Cbuf_Execute();
+
+	// need to do this to ensure we don't go to private match
+	if (g_ServerAuthenticationManager->m_bNeedLocalAuthForNewgame)
+		SetCurrentPlaylist("tdm");
+
+	// net_data_block_enabled is required for sp, force it if we're on an sp map
+	// sucks for security but just how it be
+	if (!strncmp(g_pHostState->m_levelName, "sp_", 3))
+		g_pCVar->FindVar("net_data_block_enabled")->SetValue(true);
+
+	double dStartTime = Tier0::Plat_FloatTime();
+	CHostState__State_NewGame(hostState);
+	spdlog::info("loading took {}s", Tier0::Plat_FloatTime() - dStartTime);
+
+	int maxPlayers = 6;
+	const char* maxPlayersVar = GetCurrentPlaylistVar("max_players", false);
+	if (maxPlayersVar) // GetCurrentPlaylistVar can return null so protect against this
+		maxPlayers = std::stoi(maxPlayersVar);
+
+	// Copy new server name cvar to source
+	Cvar_hostname->SetValue(Cvar_ns_server_name->GetString());
+
+	g_MasterServerManager->AddSelfToServerList(
+		Cvar_hostport->GetInt(),
+		Cvar_ns_player_auth_port->GetInt(),
+		Cvar_ns_server_name->GetString(),
+		Cvar_ns_server_desc->GetString(),
+		hostState->m_levelName,
+		GetCurrentPlaylistName(),
+		maxPlayers,
+		Cvar_ns_server_password->GetString());
+	g_ServerAuthenticationManager->StartPlayerAuthServer();
+	g_ServerAuthenticationManager->m_bNeedLocalAuthForNewgame = false;
+}
+
+typedef void (*CHostState__State_ChangeLevelMPType)(CHostState* hostState);
+CHostState__State_ChangeLevelMPType CHostState__State_ChangeLevelMP;
+void CHostState__State_ChangeLevelMPHook(CHostState* hostState)
+{
+	spdlog::info("HostState: ChangeLevelMP");
+
+	int maxPlayers = 6;
+	const char* maxPlayersVar = GetCurrentPlaylistVar("max_players", false);
+	if (maxPlayersVar) // GetCurrentPlaylistVar can return null so protect against this
+		maxPlayers = std::stoi(maxPlayersVar);
+
+	// net_data_block_enabled is required for sp, force it if we're on an sp map
+	// sucks for security but just how it be
+	if (!strncmp(g_pHostState->m_levelName, "sp_", 3))
+		g_pCVar->FindVar("net_data_block_enabled")->SetValue(true);
+
+	g_MasterServerManager->UpdateServerMapAndPlaylist(hostState->m_levelName, GetCurrentPlaylistName(), maxPlayers);
+
+	double dStartTime = Tier0::Plat_FloatTime();
+	CHostState__State_ChangeLevelMP(hostState);
+	spdlog::info("loading took {}s", Tier0::Plat_FloatTime() - dStartTime);
+}
+
+typedef void (*CHostState__State_GameShutdownType)(CHostState* hostState);
+CHostState__State_GameShutdownType CHostState__State_GameShutdown;
+void CHostState__State_GameShutdownHook(CHostState* hostState)
+{
+	spdlog::info("HostState: GameShutdown");
+
+	g_MasterServerManager->RemoveSelfFromServerList();
+	g_ServerAuthenticationManager->StopPlayerAuthServer();
+
+	CHostState__State_GameShutdown(hostState);
+}
+
+ON_DLL_LOAD_RELIESON("engine.dll", HostState, ConVar, [](HMODULE baseAddress)
+{
+	Cvar_hostname = *(ConVar**)((char*)baseAddress + 0x1315bae8);
+	Cvar_hostport = (ConVar*)((char*)baseAddress + 0x13FA6070);
+
+	HookEnabler hook;
+	ENABLER_CREATEHOOK(
+		hook, (char*)baseAddress + 0x16E7D0, CHostState__State_NewGameHook, reinterpret_cast<LPVOID*>(&CHostState__State_NewGame));
+	ENABLER_CREATEHOOK(
+		hook, (char*)baseAddress + 0x16E520, CHostState__State_ChangeLevelMPHook, reinterpret_cast<LPVOID*>(&CHostState__State_ChangeLevelMP));
+	ENABLER_CREATEHOOK(
+		hook, (char*)baseAddress + 0x16E640, CHostState__State_GameShutdownHook, reinterpret_cast<LPVOID*>(&CHostState__State_GameShutdown));
+})
\ No newline at end of file
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