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WillPlus6 engine hooks

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This commit is contained in:
Blu3train 2023-12-05 00:35:02 +01:00
parent 6a5c794289
commit 14c44ac964
1 changed files with 54 additions and 3 deletions
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57
texthook/engine/engine.cc
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@ -9628,11 +9628,14 @@ static bool InsertNewWillPlusHook()
return found;
}
bool WillPlus4Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
bool WillPlusWFilter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPWSTR>(data);
auto len = reinterpret_cast<size_t *>(size);
if (*text == L'/' || *text == L'|')
return false;
WideStringCharReplacer(text, len, L" \\n", 3, L' ');
WideStringCharReplacer(text, len, L"\\n", 2, L' ');
WideStringCharReplacer(text, len, L"\\d", 2, L'\"');
@ -9640,6 +9643,8 @@ bool WillPlus4Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
WideStringFilter(text, len, L"%LC", 3);
WideStringFilter(text, len, L"%K", 2);
WideStringFilter(text, len, L"%P", 2);
WideStringFilter(text, len, L"%XS", 5); // remove %XS followed by 2 chars
WideStringFilter(text, len, L"%XE", 3);
return true;
}
@ -9668,7 +9673,7 @@ static bool InsertWillPlus4()
hp.address = addr;
hp.offset = pusha_edi_off -4;
hp.type = USING_UNICODE | USING_STRING;
hp.filter_fun = WillPlus4Filter;
hp.filter_fun = WillPlusWFilter;
ConsoleOutput("vnreng: INSERT WillPlus4");
NewHook(hp, "WillPlus4");
return true;
@ -9702,12 +9707,57 @@ static bool InsertWillPlus5()
hp.split = pusha_ebx_off -4;
hp.split_index = 0;
hp.type = USING_UNICODE | USING_STRING | NO_CONTEXT | USING_SPLIT;
hp.filter_fun = WillPlus4Filter;
hp.filter_fun = WillPlusWFilter;
ConsoleOutput("vnreng: INSERT WillPlus5");
NewHook(hp, "WillPlus5");
return true;
}
static bool InsertWillPlus6()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/v47136
*/
const BYTE bytes[] = {
0xCC, // int 3
0x53, // push ebx <-- hook here
0x8B, 0xDC, // mov ebx,esp
0x83, 0xEC, 0x08, // sub esp,08
0x83, 0xE4, 0xF8, // and esp,-08
0x83, 0xC4, 0x04, // add esp,04
0x55, // push ebp
0x8B, 0x6B, 0x04, // mov ebp,[ebx+04]
0x89, 0x6C, 0x24, 0x04, // mov [esp+04],ebp
0x8B, 0xEC, // mov ebp,esp
0x6A, 0xFF, // push -01
0x68, XX4, // push AdvHD.exe+1965B0
0x64, 0xA1, 0x00, 0x00, 0x00, 0x00, // mov eax,fs:[00000000]
0x50, // push eax
0x53, // push ebx
0x81, 0xEC, 0x28, 0x01, 0x00, 0x00 // sub esp,00000128
};
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr) {
ConsoleOutput("vnreng:WillPlus6: pattern not found");
return false;
}
HookParam hp = {};
hp.address = addr + 1;
hp.offset = pusha_esi_off -4;
hp.index = 0;
hp.split = pusha_ebx_off -4;
hp.split_index = 0;
hp.type = USING_UNICODE | USING_STRING | NO_CONTEXT | USING_SPLIT;
hp.filter_fun = WillPlusWFilter;
ConsoleOutput("vnreng: INSERT WillPlus6");
NewHook(hp, "WillPlus6");
return true;
}
} // unnamed namespace
bool InsertWillPlusHook()
@ -9715,6 +9765,7 @@ bool InsertWillPlusHook()
bool ok = InsertOldWillPlusHook();
ok = InsertWillPlus4() || ok;
ok = InsertWillPlus5() || ok;
ok = InsertWillPlus6() || ok;
ok = InsertWillPlusWHook() || InsertWillPlusAHook() || ok;
ok = InsertNewWillPlusHook() || ok;
if (!ok) PcHooks::hookOtherPcFunctions();