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Added TweakDBID, ItemID, ref, wref, rtti support and static type dump
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maximegmd committed Dec 22, 2020
1 parent eed3d8a commit cffd34f
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Showing 8 changed files with 203 additions and 11 deletions.
76 changes: 76 additions & 0 deletions src/reverse/BasicTypes.cpp
Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
#include "BasicTypes.h"

#include <sstream>

#include "RED4ext/REDreverse/CName.hpp"

std::string Quaternion::ToString() const noexcept
Expand All @@ -11,3 +13,77 @@ std::string CName::ToString() const noexcept
{
return "CName{ hash: " + std::to_string(hash) + " - '" + RED4ext::REDreverse::CName::ToString(hash) + "' }";
}

std::string TweakDBID::ToString() const noexcept
{
std::ostringstream oss;
oss << std::hex << "TweakDBID{ hash: " << hash << ", length: " << string_length << ", unk5: " << unk5 << " unk7: " << (uint32_t)unk7 << " }";

return oss.str();
}

std::string ItemID::ToString() const noexcept
{
std::ostringstream oss;
oss << std::hex << "ItemID{ id: " << id.ToString() << ", rngSeed: " << rngSeed << ", unkC: " << unkC << " maybeType: " << (uint32_t)maybeType << " }";

return oss.str();
}

static const unsigned int crc32_table[] =
{
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};

uint32_t crc32(const char* buf, size_t len)
{
uint32_t crc = ~0;
auto q = buf + len;
for (auto p = buf; p < q; p++) {
auto octet = *p;
crc = (crc >> 8) ^ crc32_table[(crc & 0xff) ^ octet];
}
return ~crc;
}
40 changes: 40 additions & 0 deletions src/reverse/BasicTypes.h
Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
#pragma once
#include <string>

#include "RED4ext/REDhash.hpp"

namespace RED4ext {
namespace REDreverse {
namespace Scripting {
Expand All @@ -19,6 +21,8 @@ struct Quaternion
std::string ToString() const noexcept;
};

uint32_t crc32(const char* buf, size_t len);

// - But yamyam these two are exactly the same why you do this?
// - We have to implement different destructors but we are lazy
struct StrongHandle
Expand All @@ -40,3 +44,39 @@ struct CName

std::string ToString() const noexcept;
};

#pragma pack(push, 1)
struct TweakDBID
{
TweakDBID(const std::string& aName)
{
hash = crc32(aName.c_str(), aName.size());
string_length = aName.size();
}

std::string ToString() const noexcept;

uint32_t hash;
uint8_t string_length;
uint16_t unk5{0};
uint8_t unk7{0};
};

static_assert(sizeof(TweakDBID) == 8);

struct ItemID
{
ItemID(const TweakDBID& aId) : id(aId) {}

std::string ToString() const noexcept;

TweakDBID id;
uint32_t rngSeed{ 2 };
uint16_t unkC{ 0 };
uint8_t maybeType{ 0 };
uint8_t padF;
};

static_assert(sizeof(ItemID) == 0x10);

#pragma pack(pop)
77 changes: 72 additions & 5 deletions src/reverse/Scripting.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,15 @@ Scripting::Scripting()
sol::meta_function::to_string, &CName::ToString,
"hash", sol::property(&CName::hash));

m_lua.new_usertype<TweakDBID>("TweakDBID", sol::constructors<TweakDBID(const std::string&)>(),
sol::meta_function::to_string, &TweakDBID::ToString);
m_lua.new_usertype<ItemID>("ItemID", sol::constructors<ItemID(const TweakDBID&)>(),
sol::meta_function::to_string, &ItemID::ToString);

m_lua.new_usertype<CName>("CName",
sol::meta_function::to_string, &CName::ToString,
"hash", sol::property(&CName::hash));

m_lua.new_usertype<Type::Descriptor>("Descriptor",
sol::meta_function::to_string, &Type::Descriptor::ToString);

Expand All @@ -90,6 +99,17 @@ Scripting::Scripting()
{
return apType->Dump();
};

m_lua["DumpType"] = [this](const std::string& acName)
{
auto* pRtti = RED4ext::REDreverse::CRTTISystem::Get();
auto* pType = pRtti->GetType<RED4ext::REDreverse::CClass*>(RED4ext::FNV1a(acName));
if (!pType || pType->GetType() != RED4ext::REDreverse::RTTIType::Simple)
return Type::Descriptor();

Type type(m_lua, pType);
return type.Dump();
};

m_lua["print"] = [](sol::variadic_args args, sol::this_environment env, sol::this_state L)
{
Expand Down Expand Up @@ -135,22 +155,29 @@ sol::object Scripting::ToLua(sol::state_view aState, RED4ext::REDreverse::CScrip
static auto* pInt32Type = pRtti->GetType(RED4ext::FNV1a("Int32"));
static auto* pBoolType = pRtti->GetType(RED4ext::FNV1a("Bool"));
static auto* pQuaternion = pRtti->GetType(RED4ext::FNV1a("Quaternion"));
static auto* pgameItemID = pRtti->GetType(RED4ext::FNV1a("gameItemID"));
static auto* pTweakDBID = pRtti->GetType(RED4ext::FNV1a("TweakDBID"));

auto* pType = aResult.type;

if (pType == nullptr)
return sol::nil;
if (pType == pStringType)
return make_object(aState, std::string(static_cast<RED4ext::REDreverse::CString*>(aResult.value)->ToString()));
else if (pType == pInt32Type)
if (pType == pInt32Type)
return make_object(aState, *static_cast<int32_t*>(aResult.value));
else if (pType == pBoolType)
if (pType == pBoolType)
return make_object(aState, *static_cast<bool*>(aResult.value));
else if (pType == pQuaternion)
if (pType == pQuaternion)
return make_object(aState, *static_cast<Quaternion*>(aResult.value));
else if (pType == pCNameType)
if (pType == pgameItemID)
return make_object(aState, *static_cast<ItemID*>(aResult.value));
if (pType == pTweakDBID)
return make_object(aState, *static_cast<TweakDBID*>(aResult.value));
if (pType == pCNameType)
return make_object(aState, *static_cast<CName*>(aResult.value));
else if (pType->GetType() == RED4ext::REDreverse::RTTIType::Handle)

if (pType->GetType() == RED4ext::REDreverse::RTTIType::Handle)
{
const auto handle = *static_cast<StrongHandle*>(aResult.value);
if (handle.handle)
Expand Down Expand Up @@ -181,6 +208,8 @@ RED4ext::REDreverse::CScriptableStackFrame::CStackType Scripting::ToRED(sol::obj
static auto* pRtti = RED4ext::REDreverse::CRTTISystem::Get();
static auto* pStringType = pRtti->GetType(RED4ext::FNV1a("String"));
static auto* pCNameType = pRtti->GetType(RED4ext::FNV1a("CName"));
static auto* pgameItemID = pRtti->GetType(RED4ext::FNV1a("gameItemID"));
static auto* pTweakDBID = pRtti->GetType(RED4ext::FNV1a("TweakDBID"));
static auto* pInt32Type = pRtti->GetType(RED4ext::FNV1a("Int32"));
static auto* pBoolType = pRtti->GetType(RED4ext::FNV1a("Bool"));
static auto* pQuaternion = pRtti->GetType(RED4ext::FNV1a("Quaternion"));
Expand All @@ -200,6 +229,10 @@ RED4ext::REDreverse::CScriptableStackFrame::CStackType Scripting::ToRED(sol::obj
}
else if (apRtti == pInt32Type)
result.value = apAllocator->New<int32_t>(aObject.as<int32_t>());
else if (apRtti == pgameItemID)
result.value = apAllocator->New<ItemID>(aObject.as<ItemID>());
else if (apRtti == pTweakDBID)
result.value = apAllocator->New<TweakDBID>(aObject.as<TweakDBID>());
else if (apRtti == pBoolType)
result.value = apAllocator->New<bool>(aObject.as<bool>());
else if (apRtti == pQuaternion)
Expand All @@ -209,6 +242,40 @@ RED4ext::REDreverse::CScriptableStackFrame::CStackType Scripting::ToRED(sol::obj
const std::string sstr = v["tostring"](aObject);
result.value = apAllocator->New<CName>(RED4ext::FNV1a(sstr));
}
else if (apRtti->GetType() == RED4ext::REDreverse::RTTIType::Handle)
{
if (aObject.is<StrongReference>())
{
auto* pSubType = static_cast<RED4ext::REDreverse::CClass*>(apRtti)->parent;
RED4ext::REDreverse::CRTTIBaseType* pType = aObject.as<StrongReference*>()->m_pType;
while (pType != nullptr && pType != pSubType)
{
pType = static_cast<RED4ext::REDreverse::CClass*>(pType)->parent;
}

if (pType != nullptr)
{
result.value = apAllocator->New<StrongHandle>(aObject.as<StrongReference>().m_strongHandle);
}
}
}
else if (apRtti->GetType() == RED4ext::REDreverse::RTTIType::WeakHandle)
{
if (aObject.is<WeakReference>())
{
auto* pSubType = static_cast<RED4ext::REDreverse::CClass*>(apRtti)->parent;
RED4ext::REDreverse::CRTTIBaseType* pType = aObject.as<WeakReference*>()->m_pType;
while (pType != nullptr && pType != pSubType)
{
pType = static_cast<RED4ext::REDreverse::CClass*>(pType)->parent;
}

if (pType != nullptr)
{
result.value = apAllocator->New<WeakHandle>(aObject.as<WeakReference>().m_weakHandle);
}
}
}
}

return result;
Expand Down
2 changes: 2 additions & 0 deletions src/reverse/StrongReference.h
Original file line number Diff line number Diff line change
Expand Up @@ -13,5 +13,7 @@ struct StrongReference : Type
virtual RED4ext::REDreverse::Scripting::IScriptable* GetHandle();

private:
friend struct Scripting;

StrongHandle m_strongHandle;
};
9 changes: 6 additions & 3 deletions src/reverse/Type.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ std::string Type::Descriptor::ToString() const
{
result += "\t\t" + function + ",\n";
}
result += "},\nproperties: {";
result += "},\nproperties: {\n";
for (auto& property : properties)
{
result += "\t\t" + property + ",\n";
Expand Down Expand Up @@ -115,8 +115,11 @@ Type::Descriptor Type::Dump() const
for (auto i = 0u; i < m_pType->properties.size; ++i)
{
auto* pProperty = m_pType->properties.arr[i];
std::string funcName = RED4ext::REDreverse::CName::ToString(pProperty->name);
descriptor.properties.push_back(funcName);
uint64_t name = 0;
pProperty->type->GetName(&name);

std::string propName = std::string(RED4ext::REDreverse::CName::ToString(pProperty->name)) + " : " + RED4ext::REDreverse::CName::ToString(name);
descriptor.properties.push_back(propName);
}
}

Expand Down
6 changes: 4 additions & 2 deletions src/reverse/Type.h
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ struct Type
{
struct Descriptor
{
std::string name;
std::string name{"Unknown"};
std::vector<std::string> functions;
std::vector<std::string> properties;

Expand All @@ -37,9 +37,11 @@ struct Type

protected:

virtual RED4ext::REDreverse::Scripting::IScriptable* GetHandle() = 0;
virtual RED4ext::REDreverse::Scripting::IScriptable* GetHandle() { return nullptr; }

RED4ext::REDreverse::CClass* m_pType{ nullptr };

friend struct Scripting;

private:
sol::state_view m_lua;
Expand Down
2 changes: 2 additions & 0 deletions src/reverse/WeakReference.h
Original file line number Diff line number Diff line change
Expand Up @@ -13,5 +13,7 @@ struct WeakReference : Type
virtual RED4ext::REDreverse::Scripting::IScriptable* GetHandle();

private:
friend struct Scripting;

WeakHandle m_weakHandle;
};
2 changes: 1 addition & 1 deletion vendor/RED4ext

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