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Pal3 engine hook

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This commit is contained in:
Blu3train 2023-04-25 00:38:38 +02:00
parent f3fbe04409
commit 640a54e897
1 changed files with 35 additions and 1 deletions
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36
texthook/engine/engine.cc
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@ -12891,6 +12891,40 @@ static bool InsertNewPal2Hook()
NewHook(hp, "Pal");
return true;
}
static bool InsertNewPal3Hook()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/v11093
* https://vndb.org/v16212
*/
const BYTE bytes[] = {
0x8D, 0xBB, 0x98, 0x22, 0x00, 0x00, // lea edi,[ebx+00002298]
0x83, 0xE7, 0xFC, // and edi,-04
0x89, 0x83, 0x94, 0x22, 0x00, 0x00, // mov [ebx+00002294],eax
0x8B, 0x74, 0x24, 0x28, // mov esi,[esp+28]
0x8B, 0x44, 0x0E, 0xFC // mov eax,[esi+ecx-04] << hook here
};
enum { addr_offset = sizeof(bytes) - 4 };
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr) {
ConsoleOutput("vnreng:Pal3: pattern not found");
return false;
}
HookParam hp = {};
hp.address = addr + addr_offset;
hp.offset = pusha_esi_off -4;
hp.codepage = 65001;
hp.type = USING_STRING;
ConsoleOutput("vnreng: INSERT Pal3");
NewHook(hp, "Pal3");
return true;
}
bool InsertPalHook() // use Old Pal first, which does not have ruby
{
PcHooks::hookOtherPcFunctions();
@ -12900,7 +12934,7 @@ bool InsertPalHook() // use Old Pal first, which does not have ruby
strcpy_s(hp.function, "PalFontDrawText");
hp.offset = 8;
NewHook(hp, "PalFontDrawText");
return InsertOldPalHook() || InsertNewPal1Hook() || InsertNewPal2Hook();
return InsertNewPal3Hook() || InsertOldPalHook() || InsertNewPal1Hook() || InsertNewPal2Hook();
}
bool InsertPONScripterHook()