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@tranqu1lizer
tranqu1lizer authored Apr 9, 2023
1 parent 990381e commit 1745fda
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157 changes: 157 additions & 0 deletions camera_patch.vcxproj
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172 changes: 172 additions & 0 deletions core/dota_sdk.hpp
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#include <iostream>
#include <format>
#include <xorstr/xorstr.hpp>
#include <BlackBone/Asm/AsmFactory.h>
#include <BlackBone/Asm/AsmHelper64.h>
#include <BlackBone/Asm/IAsmHelper.h>
#include <BlackBone/Process/Process.h>
#include <BlackBone/Process/RPC/RemoteHook.h>
#include <BlackBone/Process/RPC/RemoteFunction.hpp>
#include <BlackBone/Patterns/PatternSearch.h>

typedef std::uintptr_t( __fastcall* CDOTACamera__Init )( );
typedef void( __fastcall* SetRenderingEnabled )( std::uintptr_t CParticleCollectionPtr, bool render );

class DefClass {
public:
blackbone::ProcessMemory* memory;
std::uintptr_t baseAddr;

std::uintptr_t GetVF( unsigned short idx ) noexcept {
const auto VMTAddr = memory->Read<std::uintptr_t>( baseAddr ).result( );

return memory->Read<std::uintptr_t>( VMTAddr + idx * 8 ).result( );
}
};

class CDOTA_ParticleManager : DefClass {
public:
CDOTA_ParticleManager( ) {
memory = nullptr;
baseAddr = NULL;
}

CDOTA_ParticleManager( blackbone::ProcessMemory* memory, std::uintptr_t baseAddr ) {
this->memory = memory;
this->baseAddr = baseAddr;
}

class NewParticleEffect : DefClass {
public:
NewParticleEffect( ) {
memory = nullptr;
baseAddr = NULL;
}
NewParticleEffect( blackbone::ProcessMemory* memory, std::uintptr_t baseAddr ) {
this->memory = memory;
this->baseAddr = baseAddr;
}
DefClass GetParticleCollection( ) {
auto partCollection = memory->Read<std::uintptr_t>( baseAddr + 0x20 ).result( );
auto res = DefClass( memory, partCollection );
if ( !baseAddr || !partCollection ) return DefClass( 0, 0 );
return res;
}
};

class ParticleListItem : DefClass {
public:
ParticleListItem( ) {
memory = nullptr;
baseAddr = NULL;
}
ParticleListItem( blackbone::ProcessMemory* memory, std::uintptr_t baseAddr ) {
this->memory = memory;
this->baseAddr = baseAddr;
}
CDOTA_ParticleManager::NewParticleEffect GetNewParticleEffect( ) {
auto newPartEffect = memory->Read<std::uintptr_t>( baseAddr + 0x10 ).result( );
if ( !newPartEffect || !baseAddr ) return CDOTA_ParticleManager::NewParticleEffect( 0, 0 );
return CDOTA_ParticleManager::NewParticleEffect( memory, newPartEffect );
}
};


std::vector<CDOTA_ParticleManager::ParticleListItem> GetParticleLists( ) {
std::vector<ParticleListItem> list;
auto particlesBase = memory->Read<std::uintptr_t>( baseAddr + 0x88 ).result( );
const auto pCount = this->GetParticleCount( ) * 8;
for ( int idx = 0x0; idx < pCount; idx += 0x8 ) {
CDOTA_ParticleManager::ParticleListItem thisEffect( memory, memory->Read<std::uintptr_t>( particlesBase + idx ).result( ));
list.push_back( thisEffect );
}

return list;
}

int GetParticleCount( ) {
return memory->Read<int>( baseAddr + 0x80 ).result( );
}
};

class CDOTA_Camera : DefClass {
public:
CDOTA_Camera( ) {
memory = nullptr;
baseAddr = NULL;
}

CDOTA_Camera( blackbone::ProcessMemory* memory, std::uintptr_t baseAddr ) {
this->memory = memory;
this->baseAddr = baseAddr;
}

void SetDistance( float distance ) noexcept { // 0x270
memory->Write<float>( baseAddr + 0x270, distance );
}

void SetFOWAmount( float amount ) // 0x70
{
memory->Write<float>( baseAddr + 0x70, amount );
}

auto GetDistance( ) noexcept {
return memory->Read<float>( baseAddr + 0x270 ).result( );
}

auto GetFOWAmount( )
{
return memory->Read<float>( baseAddr + 0x70 ).result( );
}

void ToggleFog( ) {
const auto aGetFog = this->GetVF( 18 );
const auto instructionBytes = memory->Read<uintptr_t>( aGetFog ).result( );

if ( instructionBytes == 0x83485708245c8948 ) { // not patched

// 0x0F, 0x57, 0xC0 | xorps xmm0, xmm0
// 0xC3 | ret
constexpr const char* bytePatch = "\x0F\x57\xC0\xC3";
memory->Write( aGetFog, 4, bytePatch );
// std::cout << "Fog instructions patched" << std::endl;
}
else if ( instructionBytes == 0x83485708c3c0570f ) { // already patched

// 0x48, 0x89, 0x5C, 0x24, 0x08 | mov qword ptr ss:[rsp+8], rbx
// 0x57 | push rdi
constexpr const char* byteRestore = "\x48\x89\x5C\x24\x08\x57";
memory->Write( aGetFog, 6, byteRestore );
// std::cout << "Fog instructions restored" << std::endl;
}
else {
std::cout << "Error, unknown fog instructions: " << instructionBytes << std::endl;
std::system( "pause" );
exit( 1 );
}
}

void ToggleMaxZFar( ) {
const auto aGetZFar = this->GetVF( 19 );
const auto instructionBytes = memory->Read<uintptr_t>( aGetZFar ).result( );

if ( instructionBytes == 0x83485708245c8948 ) { // not patched

// 0xB8, 0x50, 0x46, 0x00, 0x00 | mov eax, 18000
// 0xF3, 0x0F, 0x2A, 0xC0 | cvtsi2ss xmm0, eax
// 0xC3 | ret
constexpr const char* bytePatch = "\xB8\x50\x46\x00\x00\xF3\x0F\x2A\xC0\xC3";
memory->Write( aGetZFar, 10, bytePatch );
//std::cout << "ZFar instructions patched" << std::endl;
}
else if ( instructionBytes == 0x2a0ff300004650b8 ) { // already patched

// 0x48, 0x89, 0x5C, 0x24, 0x08 | mov qword ptr ss:[rsp+8], rbx
// 0x57 | push rdi
// 0x48, 0x83, 0xEC, 0x40 | sub rsp, 40
constexpr const char* byteRestore = "\x48\x89\x5C\x24\x08\x57\x48\x83\xEC\x40";
memory->Write( aGetZFar, 10, byteRestore );
//std::cout << "ZFar instructions restored" << std::endl;
}
}
};
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