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Null terminate read lines in CPlane::LoadPath and CTrain::ReadAndInterpretTrackFile

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Silent 2024-03-18 23:47:51 +01:00
parent b3131a41b4
commit 8414ed4208
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2 changed files with 88 additions and 0 deletions
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62
SilentPatchIII/SilentPatchIII.cpp
View file

@ -574,6 +574,48 @@ namespace EvasiveDiveFix
}
// ============= Null terminate read lines in CPlane::LoadPath and CTrain::ReadAndInterpretTrackFile =============
namespace NullTerminatedLines
{
static char* gString;
static void* orgSscanf_LoadPath;
__declspec(naked) static void sscanf1_LoadPath_Terminate()
{
_asm
{
mov eax, [esp+4]
mov byte ptr [eax+ecx], 0
jmp [orgSscanf_LoadPath]
}
}
static void* orgSscanf1;
__declspec(naked) static void sscanf1_Terminate()
{
_asm
{
mov eax, [esp+4]
mov byte ptr [eax+ecx], 0
jmp [orgSscanf1]
}
}
__declspec(naked) static void ReadTrackFile_Terminate()
{
_asm
{
mov ecx, [gString]
mov byte ptr [ecx+edx], 0
mov ecx, [esi]
inc ebp
add ecx, [esp+0ACh-98h]
retn
}
}
}
void InjectDelayedPatches_III_Common( bool bHasDebugMenu, const wchar_t* wcModulePath )
{
using namespace Memory;
@ -1404,6 +1446,26 @@ void Patch_III_Common()
Patch<uint16_t>(probability_do_nothing, 35000u * 32767u / 100000u);
Patch<uint32_t>(probability_flee, 75000u * 32767u / 100000u);
}
// Null terminate read lines in CPlane::LoadPath and CTrain::ReadAndInterpretTrackFile
{
using namespace NullTerminatedLines;
auto loadPath = get_pattern("DD D8 45 E8", 3);
auto readTrackFile1 = pattern("E8 ? ? ? ? 0F BF 07").get_one();
auto readTrackFile2 = pattern(" 8B 0E 45 03 4C 24 10").get_one();
gString = *readTrackFile1.get<char*>(-5 + 1);
InterceptCall(loadPath, orgSscanf_LoadPath, sscanf1_LoadPath_Terminate);
Patch(readTrackFile1.get<void>(-10 + 1), "%hd");
InterceptCall(readTrackFile1.get<void>(), orgSscanf1, sscanf1_Terminate);
Nop(readTrackFile2.get<void>(), 2);
InjectHook(readTrackFile2.get<void>(2), ReadTrackFile_Terminate, HookType::Call);
}
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)

26
SilentPatchVC/SilentPatchVC.cpp
View file

@ -536,6 +536,22 @@ namespace EnvMapsOnExtras
}
// ============= Null terminate read lines in CPlane::LoadPath =============
namespace NullTerminatedLines
{
static void* orgSscanf_LoadPath;
__declspec(naked) static void sscanf1_LoadPath_Terminate()
{
_asm
{
mov eax, [esp+4]
mov byte ptr [eax+ecx], 0
jmp [orgSscanf_LoadPath]
}
}
}
void InjectDelayedPatches_VC_Common( bool bHasDebugMenu, const wchar_t* wcModulePath )
{
using namespace Memory;
@ -1298,6 +1314,16 @@ void Patch_VC_Common()
Patch<uint16_t>(probability, 35000u / 2u);
}
// Null terminate read lines in CPlane::LoadPath
{
using namespace NullTerminatedLines;
auto loadPath = get_pattern("DD D8 45 E8", 3);
InterceptCall(loadPath, orgSscanf_LoadPath, sscanf1_LoadPath_Terminate);
}
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)