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YU-RIS8 engine hooks

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This commit is contained in:
Blu3train 2024-02-22 02:36:41 +01:00
parent 67c0679693
commit bd71c4bcf6
1 changed files with 43 additions and 0 deletions
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43
texthook/engine/engine.cc
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@ -6557,6 +6557,48 @@ bool InsertYuris7Hook()
return true;
}
bool InsertYuris8Hook()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/v47458
* https://vndb.org/v45381
*/
const BYTE bytes[] = {
0x57, // push edi << hook here
0x56, // push esi
0x55, // push ebp
0x53, // push ebx
0x83, 0xEC, 0x10, // sub esp,10
0x8B, 0x5C, 0x24, 0x24, // mov ebx,[esp+24]
0x8B, 0x15, XX4, // mov edx,[hajiron.exe+47243C]
0x8B, 0x0C, 0x9A, // mov ecx,[edx+ebx*4]
0xC6, 0x41, 0x01, 0x03, // mov byte ptr [ecx+01],03
0x8B, 0xC3, // mov eax,ebx
0xE8,XX4 // call hajiron.exe+54EA4
};
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr)
return false;
HookParam hp = {};
hp.address = addr;
hp.offset = pusha_edx_off -4;
hp.index = 0;
hp.text_fun = [](DWORD esp_base, HookParam*, BYTE, DWORD*, DWORD*, DWORD* len)
{
//*len = (regof(eax,esp_base) == 0x02 && regof(edi,esp_base) == 0x14) ? 2 : 0; //dialogs without names
*len = (regof(eax,esp_base) == 0x02 && regof(edi,esp_base) >= 0x62 && regof(edi,esp_base) <= 0x68) ? 2 : 0; //dialogs with names
};
hp.type = USING_STRING;
ConsoleOutput("vnreng: INSERT YU-RIS8");
NewHook(hp, "YU-RIS8");
return true;
}
//bool InsertYurisHook()
//{ return InsertYuris1Hook() || InsertYuris2Hook() || InsertYuris3Hook(); }
bool InsertYurisHook()
@ -6568,6 +6610,7 @@ bool InsertYurisHook()
ok = InsertYuris5Hook() || ok;
ok = InsertYuris6Hook() || ok;
ok = InsertYuris7Hook() || ok;
ok = InsertYuris8Hook() || ok;
return ok;
}