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Tie handlebar movement to the stering animations on Quadbike,

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fixes odd animation interpolations at low speeds

Contributed by Wesser
This commit is contained in:
Silent 2024-01-28 14:44:45 +01:00
parent b3f4c8b17b
commit 7c09e7a5c2
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GPG key ID: AE53149BB0C45AF1
1 changed files with 91 additions and 0 deletions
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91
SilentPatchSA/SilentPatchSA.cpp
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@ -1702,6 +1702,76 @@ namespace FollowCarMouseCamFix
}
};
// ======= Tie handlebar movement to the stering animations on Quadbike, fixes odd animation interpolations at low speeds =======
namespace QuadbikeHandlebarAnims
{
static const float POW_CONSTANT = 0.86f;
static const float SLOW_SPEED_THRESHOLD = 0.02f;
__declspec(naked) void ProcessRiderAnims_FixInterp()
{
_asm
{
xor edx, edx
cmp [esp+130h-100h], edx // Reverse animation
jne FuncSetToZero
cmp [esp+130h-0F8h], edx // Drive-by animation
jne FuncSetToZero
fld dword ptr [esp+130h-108h]
fabs
fcomp [SLOW_SPEED_THRESHOLD]
fnstsw ax
test ah, 5
jp FuncReturn
FuncSetToZero:
mov [esp+130h-118h], edx
FuncReturn:
fld [POW_CONSTANT]
retn
}
}
static uint32_t savedClumpAssociation;
__declspec(naked) void SaveDriveByAnim_Steam()
{
_asm
{
mov eax, [ebp-14h]
mov [savedClumpAssociation], eax
fdiv dword ptr [ecx+18h]
fstp [ebp-14h]
retn
}
}
__declspec(naked) void ProcessRiderAnims_FixInterp_Steam()
{
_asm
{
xor edx, edx
cmp [ebp-28h], edx // Reverse animation
jne FuncSetToZero
cmp [savedClumpAssociation], edx // Drive-by animation
jne FuncSetToZero
fld dword ptr [ebp-24h]
fabs
fcomp [SLOW_SPEED_THRESHOLD]
fnstsw ax
test ah, 5
jp FuncReturn
FuncSetToZero:
mov [ebp-14h], edx
FuncReturn:
fld [POW_CONSTANT]
retn
}
}
}
// ============= LS-RP Mode stuff =============
namespace LSRPMode
@ -4301,6 +4371,12 @@ void Patch_SA_10()
Nop(0x5E69BC + 5, 3);
// Tie handlebar movement to the stering animations on Quadbike, fixes odd animation interpolations at low speeds
// By Wesser
Nop(0x6B7932, 1);
InjectHook(0x6B7932+1, &QuadbikeHandlebarAnims::ProcessRiderAnims_FixInterp, PATCH_CALL);
#if FULL_PRECISION_D3D
// Test - full precision D3D device
Patch<uint8_t>( 0x7F672B+1, *(uint8_t*)(0x7F672B+1) | D3DCREATE_FPU_PRESERVE );
@ -5814,6 +5890,21 @@ void Patch_SA_NewBinaries_Common()
Nop(isOpenTopCar.get<void>(5), 5);
}
// Tie handlebar movement to the stering animations on Quadbike, fixes odd animation interpolations at low speeds
// By Wesser
{
auto processRiderAnims = pattern("DD 05 ? ? ? ? D9 05 ? ? ? ? E8 ? ? ? ? D9 5D F0 80 7D 0B 00").get_one();
// Compiler reordered variables compared to the older versions, so they need to be preserved
auto saveDriveByAnim = pattern("D8 71 18 D9 5D EC").get_one();
Nop(processRiderAnims.get<void>(), 1);
InjectHook(processRiderAnims.get<void>(1), &QuadbikeHandlebarAnims::ProcessRiderAnims_FixInterp_Steam, PATCH_CALL);
Nop(saveDriveByAnim.get<void>(), 1);
InjectHook(saveDriveByAnim.get<void>(1), &QuadbikeHandlebarAnims::SaveDriveByAnim_Steam, PATCH_CALL);
}
}