LunaHook-mirror/LunaHook/engine32/EME.cpp

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2024-02-07 20:59:24 +08:00
#include"EME.h"
/********************************************************************************************
EMEHook hook: (Contributed by Freaka)
EmonEngine is used by LoveJuice company and TakeOut. Earlier builds were apparently
called Runrun engine. String parsing varies a lot depending on the font settings and
speed setting. E.g. without antialiasing (which very early versions did not have)
uses TextOutA, fast speed triggers different functions then slow/normal. The user can
set his own name and some odd control characters are used (0x09 for line break, 0x0D
for paragraph end) which is parsed and put together on-the-fly while playing so script
can't be read directly.
********************************************************************************************/
bool InsertEMEHook()
{
ULONG addr = MemDbg::findCallAddress((ULONG)::IsDBCSLeadByte, processStartAddress, processStopAddress);
// no needed as first call to IsDBCSLeadByte is correct, but sig could be used for further verification
//WORD sig = 0x51C3;
//while (c && (*(WORD*)(c-2)!=sig))
//{
// //-0x1000 as FindCallOrJmpAbs always uses an offset of 0x1000
// c = Util::FindCallOrJmpAbs((DWORD)IsDBCSLeadByte,processStopAddress-c-0x1000+4,c-0x1000+4,false);
//}
if (!addr) {
ConsoleOutput("EME: pattern does not exist");
return false;
}
HookParam hp;
hp.address = addr;
hp.offset=get_reg(regs::eax);
hp.type = NO_CONTEXT|DATA_INDIRECT|USING_STRING;
ConsoleOutput("INSERT EmonEngine");
//ConsoleOutput("EmonEngine, hook will only work with text speed set to slow or normal!");
//else ConsoleOutput("Unknown EmonEngine engine");
return NewHook(hp, "EmonEngine");
}
bool EME::attach_function() {
return InsertEMEHook();
}