aboutsummaryrefslogtreecommitdiff
path: root/NorthstarDedicatedTest/languagehooks.cpp
blob: 08bacaf9a56a4e3802ab73813d35959e1e9ee580 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
#include "pch.h"
#include "languagehooks.h"
#include "gameutils.h"
#include <filesystem>
#include <regex>

namespace fs = std::filesystem;

typedef char* (*GetGameLanguageType)();
char* GetGameLanguage();

typedef LANGID(*Tier0_DetectDefaultLanguageType)();

GetGameLanguageType GetGameLanguageOriginal;

bool CheckLangAudioExists(char* lang)
{
	std::string path{ "r2\\sound\\general_" };
	path += lang;
	path += ".mstr";
	return fs::exists(path);
}

std::vector<std::string> file_list(fs::path dir, std::regex ext_pattern)
{
	std::vector<std::string> result;

	using iterator = fs::directory_iterator;

	const iterator end;
	for (iterator iter{ dir }; iter != end; ++iter)
	{
		const std::string filename = iter->path().filename().string();
		std::smatch matches;
		if (fs::is_regular_file(*iter) && std::regex_match(filename, matches, ext_pattern))
		{
			result.push_back(std::move(matches.str(1)));
		}
	}

	return result;
}

std::string GetAnyInstalledAudioLanguage()
{
	for (const auto& lang : file_list("r2\\sound\\", std::regex(".*?general_([a-z]+)_patch_1\\.mstr")))
		if (lang != "general" || lang != "")
			return lang;
	return "NO LANGUAGE DETECTED";
}

char* GetGameLanguageHook()
{
	auto tier0Handle = GetModuleHandleA("tier0.dll");
	auto Tier0_DetectDefaultLanguageType = GetProcAddress(tier0Handle, "Tier0_DetectDefaultLanguage");
	char* ingameLang1 = (char*)tier0Handle + 0xA9B60; // one of the globals we need to override if overriding lang (size: 256)
	bool& canOriginDictateLang = *(bool*)((char*)tier0Handle + 0xA9A90);

	const char* forcedLanguage;
	if (CommandLine()->CheckParm("-language", &forcedLanguage))
	{
		if (!CheckLangAudioExists((char*)forcedLanguage))
		{
			spdlog::info("User tried to force the language (-language) to \"{}\", but audio for this language doesn't exist and the game is bound to error, falling back to next option...", forcedLanguage);
		}
		else
		{
			spdlog::info("User forcing the language (-language) to: {}", forcedLanguage);
			strncpy(ingameLang1, forcedLanguage, 256);
			return ingameLang1;
		}
	}

	canOriginDictateLang = true; // let it try
	{
		auto lang = GetGameLanguageOriginal();
		if (!CheckLangAudioExists(lang))
		{
			spdlog::info("Origin detected language \"{}\", but we do not have audio for it installed, falling back to the next option", lang);

		}
		else
		{
			spdlog::info("Origin detected language: {}", lang);
			return lang;
		}
	}

	Tier0_DetectDefaultLanguageType(); // force the global in tier0 to be populated with language inferred from user's system rather than defaulting to Russian
	canOriginDictateLang = false; // Origin has no say anymore, we will fallback to user's system setup language
	auto lang = GetGameLanguageOriginal();
	spdlog::info("Detected system language: {}", lang);
	if (!CheckLangAudioExists(lang))
	{
		spdlog::warn("Caution, audio for this language does NOT exist. You might want to override your game language with -language command line option.");
		auto lang = GetAnyInstalledAudioLanguage();
		spdlog::warn("Falling back to first installed audio language: {}", lang.c_str());
		strncpy(ingameLang1, lang.c_str(), 256);
		return ingameLang1;
	}

	return lang;
}

void InitialiseTier0LanguageHooks(HMODULE baseAddress)
{
	HookEnabler hook;
	ENABLER_CREATEHOOK(hook, (char*)baseAddress + 0xF560, &GetGameLanguageHook, reinterpret_cast<LPVOID*>(&GetGameLanguageOriginal));
}