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Fixed IS_PLAYER_TARGETTING_CHAR incorrectly detecting targetting in Classic controls when the player is not aiming

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Contributed by Wesser

Fixes #10
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Silent 2024-04-17 23:31:03 +02:00
parent 21b537f5ec
commit f6ba6be75a
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1 changed files with 58 additions and 0 deletions
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58
SilentPatchVC/SilentPatchVC.cpp
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@ -647,6 +647,42 @@ namespace PickupEffectsFixes
}
}
// ============= Fixed IS_PLAYER_TARGETTING_CHAR incorrectly detecting targetting in Classic controls =============
// ============= when the player is not aiming =============
// ============= By Wesser =============
namespace IsPlayerTargettingCharFix
{
static bool* bUseMouse3rdPerson;
static void* TheCamera;
static bool (__fastcall* Using1stPersonWeaponMode)();
__declspec(naked) static void IsPlayerTargettingChar_ExtraChecks()
{
// After this extra block of code, there is a jz Return, so set ZF to 0 here if this path is to be entered
_asm
{
test bl, bl
jnz ReturnToUpdateCompareFlag
mov eax, [bUseMouse3rdPerson]
cmp byte ptr [eax], 0
jne CmpAndReturn
mov ecx, [TheCamera]
call [Using1stPersonWeaponMode]
test al, al
jz ReturnToUpdateCompareFlag
CmpAndReturn:
cmp byte ptr [esp+11Ch-10Ch], 0
retn
ReturnToUpdateCompareFlag:
xor al, al
retn
}
}
}
void InjectDelayedPatches_VC_Common( bool bHasDebugMenu, const wchar_t* wcModulePath )
{
using namespace Memory;
@ -1479,6 +1515,28 @@ void Patch_VC_Common()
Patch(fireInstantHit.get<void>(15), { 0xD9, 0xEE, 0x90, 0x90 });
Patch(fireInstantHit.get<void>(30), { 0xD9, 0xEE, 0x90, 0x90 });
}
// Fixed IS_PLAYER_TARGETTING_CHAR incorrectly detecting targetting in Classic controls
// when the player is not aiming
// By Wesser
{
using namespace IsPlayerTargettingCharFix;
auto isPlayerTargettingChar = pattern("83 7C 24 ? ? A3 ? ? ? ? 0F 84").get_one();
auto using1stPersonWeaponMode = static_cast<decltype(Using1stPersonWeaponMode)>(get_pattern("66 83 F8 07 74 18", -7));
bool* useMouse3rdPerson = *get_pattern<bool*>("80 3D ? ? ? ? ? 75 09 66 C7 05 ? ? ? ? ? ? 8B 35", 2);
void* theCamera = *get_pattern<void*>("B9 ? ? ? ? 31 DB E8", 1);
Using1stPersonWeaponMode = using1stPersonWeaponMode;
bUseMouse3rdPerson = useMouse3rdPerson;
TheCamera = theCamera;
// Move mov ds:dword_784030, eax one instruction earlier so we don't need
// to include it in the patched routine
memmove(isPlayerTargettingChar.get<void>(), isPlayerTargettingChar.get<void>(5), 5);
InjectHook(isPlayerTargettingChar.get<void>(5), IsPlayerTargettingChar_ExtraChecks, HookType::Call);
}
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)