LunaHook-mirror/LunaHook/engine32/Lightvn.cpp
2024-02-07 20:59:24 +08:00

85 lines
3.2 KiB
C++

#include"Lightvn.h"
//https://vndb.org/r?f=fwLight_evn-
void SpecialHookLightvnA(hook_stack*, HookParam*, uintptr_t* data, uintptr_t* split, size_t* len)
{
//[Parser::ReadScriptBreak] curline:'"「次は[水縹]<みはなだ>駅、水縹駅――お出口は左側です」'
//[PARSETOKENS] line:.始発でここまで来ているのは俺くらいなものだろう。
//(scenario:T) (script:00.txt, lineNo:30)
//[PARSETOKENS] line:"電車には俺のほかに数人乗っている程度。\c
//(scenario:F) (script:00.txt, lineNo:29)
std::string s((char*)*data);
//std::regex _1("\\[Parser::ReadScriptBreak\\] curline:'[\"\\.]([\\s\\S]*?)'([\\s\\S]*?)");//对于多行显示不全
//std::regex _2("\\[PARSETOKENS\\] line:([\\s\\S]*?)\\(scenario:([\\s\\S]*?)");
std::regex _2("\\[PARSETOKENS\\] line:[-\"\\.]+([\\s\\S]*?)\\(scenario:([\\s\\S]*?)");
std::regex _3("\\[PARSETOKENS\\] line:([\\s\\S]*?)backlogName = '([\\s\\S]*?)'([\\s\\S]*?)");
std::smatch match; std::string _;
if (std::regex_match(s, match, _2)) {
_=std::string(match[1]);
_ = std::regex_replace(_, std::regex("\\[(.*?)\\]<(.*?)>"), "$1");
strReplace(_,"\\c","");
strReplace(_,"\\w","");
*split=1;
}
else if (std::regex_match(s, match, _3)) {
_=std::string(match[2]);
*split=2;
}
auto _s=new char[_.size()+1];strcpy(_s,_.c_str());
*data=(uintptr_t)_s;*len=_.size();
}
void SpecialHookLightvnW(hook_stack*, HookParam*, uintptr_t* data, uintptr_t* split, size_t* len)
{
std::wstring s((wchar_t*)*data);
std::wregex _2(L"\\[PARSETOKENS\\] line:[-\"\\.]+([\\s\\S]*?)\\(scenario:([\\s\\S]*?)");
std::wregex _3(L"\\[PARSETOKENS\\] line:([\\s\\S]*?)backlogName = '([\\s\\S]*?)'([\\s\\S]*?)");
std::wsmatch match; std::wstring _;
if (std::regex_match(s, match, _2)) {
_=std::wstring(match[1]);
_ = std::regex_replace(_, std::wregex(L"\\[(.*?)\\]<(.*?)>"), L"$1");
strReplace(_,L"\\c",L"");
strReplace(_,L"\\w",L"");
*split=1;
}
else if (std::regex_match(s, match, _3)) {
_=std::wstring(match[2]);
*split=2;
}
auto _s=new wchar_t[_.size()+1];wcscpy(_s,_.c_str());
*data=(uintptr_t)_s;*len=_.size()*2;
}
bool InsertLightvnHook()
{
wcscpy_s(spDefault.boundaryModule, L"Engine.dll");
/*// This hooking method also has decent results, but hooking OutputDebugString seems better
const BYTE bytes[] = { 0x8d, 0x55, 0xfe, 0x52 };
for (auto addr : Util::SearchMemory(bytes, sizeof(bytes), PAGE_EXECUTE_READ, (uintptr_t)GetModuleHandleW(L"Engine.dll")))
{
HookParam hp;
hp.address = MemDbg::findEnclosingAlignedFunction(addr);
hp.type = CODEC_UTF16 | USING_STRING;
hp.offset=get_stack(1);
NewHook(hp, "Light.vn");
}*/
VirtualProtect(IsDebuggerPresent, 2, PAGE_EXECUTE_READWRITE, DUMMY);
*(uint16_t*)IsDebuggerPresent = 0xc340; // asm for inc eax ret
HookParam hp;
hp.address = (uintptr_t)OutputDebugStringA;
hp.type = CODEC_UTF8 | USING_STRING;
hp.offset=get_stack(1);
hp.text_fun = SpecialHookLightvnA;
auto succ=NewHook(hp, "OutputDebugStringA");
hp.address = (uintptr_t)OutputDebugStringW;
hp.type = CODEC_UTF16 | USING_STRING;
hp.text_fun = SpecialHookLightvnW;
succ|=NewHook(hp, "OutputDebugStringW");
return succ;
}
bool Lightvn::attach_function() {
return InsertLightvnHook();
}