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OpenMW/apps/openmw/mwworld/store.hpp
2024-06-05 21:48:07 +02:00

611 lines
18 KiB
C++

#ifndef OPENMW_MWWORLD_STORE_H
#define OPENMW_MWWORLD_STORE_H
#include <map>
#include <memory>
#include <set>
#include <span>
#include <string>
#include <unordered_map>
#include <vector>
#include <components/esm/attr.hpp>
#include <components/esm/refid.hpp>
#include <components/esm/util.hpp>
#include <components/esm3/loadcell.hpp>
#include <components/esm3/loaddial.hpp>
#include <components/esm3/loadglob.hpp>
#include <components/esm3/loadgmst.hpp>
#include <components/esm3/loadland.hpp>
#include <components/esm3/loadpgrd.hpp>
#include <components/esm3/loadskil.hpp>
#include <components/esm4/loadachr.hpp>
#include <components/esm4/loadcell.hpp>
#include <components/esm4/loadland.hpp>
#include <components/esm4/loadrefr.hpp>
#include <components/misc/rng.hpp>
#include <components/misc/strings/algorithm.hpp>
#include "../mwdialogue/keywordsearch.hpp"
namespace ESM
{
struct LandTexture;
struct MagicEffect;
struct WeaponType;
class ESMReader;
class ESMWriter;
}
namespace Loading
{
class Listener;
}
namespace MWWorld
{
class Cell;
struct RecordId
{
ESM::RefId mId;
bool mIsDeleted;
RecordId(const ESM::RefId& id = {}, bool isDeleted = false);
};
class StoreBase
{
}; // Empty interface to be parent of all store types
template <class Id>
class DynamicStoreBase : public StoreBase
{
public:
virtual ~DynamicStoreBase() {}
virtual void setUp() {}
/// List identifiers of records contained in this Store (case-smashed). No-op for Stores that don't use string
/// IDs.
virtual void listIdentifier(std::vector<Id>& list) const {}
virtual size_t getSize() const = 0;
virtual int getDynamicSize() const { return 0; }
virtual RecordId load(ESM::ESMReader& esm) = 0;
virtual bool eraseStatic(const Id& id) { return false; }
virtual void clearDynamic() {}
virtual void write(ESM::ESMWriter& writer, Loading::Listener& progress) const {}
virtual RecordId read(ESM::ESMReader& reader, bool overrideOnly = false) { return RecordId(); }
///< Read into dynamic storage
};
using DynamicStore = DynamicStoreBase<ESM::RefId>;
template <class T>
class IndexedStore : public StoreBase
{
protected:
typedef typename std::map<int, T> Static;
Static mStatic;
public:
typedef typename std::map<int, T>::const_iterator iterator;
IndexedStore();
iterator begin() const;
iterator end() const;
iterator findIter(int index) const { return mStatic.find(index); }
void load(ESM::ESMReader& esm);
int getSize() const;
void setUp();
const T* search(int index) const;
// calls `search` and throws an exception if not found
const T* find(int index) const;
};
template <class T>
class SharedIterator
{
public:
using Iter = typename std::vector<T*>::const_iterator;
using iterator_category = std::random_access_iterator_tag;
using value_type = T;
using difference_type = std::ptrdiff_t;
using pointer = T*;
using reference = T&;
SharedIterator() = default;
SharedIterator(const SharedIterator& other) = default;
SharedIterator(const Iter& iter)
: mIter(iter)
{
}
SharedIterator& operator=(const SharedIterator&) = default;
SharedIterator& operator++()
{
++mIter;
return *this;
}
SharedIterator operator++(int)
{
SharedIterator iter = *this;
++mIter;
return iter;
}
SharedIterator& operator+=(difference_type advance)
{
mIter += advance;
return *this;
}
SharedIterator& operator--()
{
--mIter;
return *this;
}
SharedIterator operator--(int)
{
SharedIterator iter = *this;
--mIter;
return iter;
}
bool operator==(const SharedIterator& x) const { return mIter == x.mIter; }
bool operator!=(const SharedIterator& x) const { return !(*this == x); }
const T& operator*() const { return **mIter; }
const T* operator->() const { return &(**mIter); }
private:
Iter mIter;
friend inline difference_type operator-(const SharedIterator& lhs, const SharedIterator& rhs)
{
return lhs.mIter - rhs.mIter;
}
};
class ESMStore;
template <class T, class Id = ESM::RefId>
class TypedDynamicStore : public DynamicStoreBase<Id>
{
protected:
typedef std::unordered_map<Id, T> Static;
Static mStatic;
/// @par mShared usually preserves the record order as it came from the content files (this
/// is relevant for the spell autocalc code and selection order
/// for heads/hairs in the character creation)
std::vector<T*> mShared;
typedef std::unordered_map<Id, T> Dynamic;
Dynamic mDynamic;
friend class ESMStore;
public:
TypedDynamicStore();
TypedDynamicStore(const TypedDynamicStore<T, Id>& orig);
typedef SharedIterator<T> iterator;
// setUp needs to be called again after
void clearDynamic() override;
void setUp() override;
const T* search(const Id& id) const;
const T* searchStatic(const Id& id) const;
/**
* Does the record with this ID come from the dynamic store?
*/
bool isDynamic(const Id& id) const;
/** Returns a random record that starts with the named ID, or nullptr if not found. */
const T* searchRandom(const std::string_view prefix, Misc::Rng::Generator& prng) const;
// calls `search` and throws an exception if not found
const T* find(const Id& id) const;
iterator begin() const;
iterator end() const;
const T* at(size_t index) const { return mShared.at(index); }
size_t getSize() const override;
int getDynamicSize() const override;
/// @note The record identifiers are listed in the order that the records were defined by the content files.
void listIdentifier(std::vector<Id>& list) const override;
T* insert(const T& item, bool overrideOnly = false);
T* insertStatic(const T& item);
bool eraseStatic(const Id& id) override;
bool erase(const Id& id);
bool erase(const T& item);
RecordId load(ESM::ESMReader& esm) override;
void write(ESM::ESMWriter& writer, Loading::Listener& progress) const override;
RecordId read(ESM::ESMReader& reader, bool overrideOnly = false) override;
};
template <class T>
class Store : public TypedDynamicStore<T>
{
};
template <>
class Store<ESM::LandTexture> : public DynamicStore
{
using PluginIndex = std::pair<int, std::uint32_t>; // This is essentially a FormId
std::unordered_map<ESM::RefId, std::string> mStatic;
std::map<PluginIndex, ESM::RefId> mMappings;
public:
Store();
// Must be threadsafe! Called from terrain background loading threads.
// Not a big deal here, since ESM::LandTexture can never be modified or inserted/erased
const std::string* search(std::uint32_t index, int plugin) const;
size_t getSize() const override;
bool eraseStatic(const ESM::RefId& id) override;
RecordId load(ESM::ESMReader& esm) override;
};
template <>
class Store<ESM::GameSetting> : public TypedDynamicStore<ESM::GameSetting>
{
public:
const ESM::GameSetting* search(const ESM::RefId& id) const;
const ESM::GameSetting* find(const std::string_view id) const;
const ESM::GameSetting* search(const std::string_view id) const;
void setUp() override;
};
template <>
class Store<ESM4::Cell> : public TypedDynamicStore<ESM4::Cell>
{
std::unordered_map<std::string, ESM4::Cell*, Misc::StringUtils::CiHash, Misc::StringUtils::CiEqual>
mCellNameIndex;
std::unordered_map<ESM::ExteriorCellLocation, ESM4::Cell*> mExteriors;
public:
const ESM4::Cell* searchCellName(std::string_view) const;
const ESM4::Cell* searchExterior(ESM::ExteriorCellLocation cellIndex) const;
ESM4::Cell* insert(const ESM4::Cell& item, bool overrideOnly = false);
ESM4::Cell* insertStatic(const ESM4::Cell& item);
void insertCell(ESM4::Cell* cell);
void clearDynamic() override;
};
template <>
class Store<ESM4::Land> : public TypedDynamicStore<ESM4::Land>
{
std::unordered_map<ESM::ExteriorCellLocation, const ESM4::Land*> mLands;
public:
Store();
void updateLandPositions(const Store<ESM4::Cell>& cells);
const ESM4::Land* search(ESM::ExteriorCellLocation cellLocation) const;
const std::unordered_map<ESM::ExteriorCellLocation, const ESM4::Land*>& getLands() const { return mLands; }
};
template <>
class Store<ESM::Land> : public DynamicStore
{
struct SpatialComparator
{
using is_transparent = void;
bool operator()(const ESM::Land& x, const ESM::Land& y) const
{
return std::tie(x.mX, x.mY) < std::tie(y.mX, y.mY);
}
bool operator()(const ESM::Land& x, const std::pair<int, int>& y) const
{
return std::tie(x.mX, x.mY) < std::tie(y.first, y.second);
}
bool operator()(const std::pair<int, int>& x, const ESM::Land& y) const
{
return std::tie(x.first, x.second) < std::tie(y.mX, y.mY);
}
};
using Statics = std::set<ESM::Land, SpatialComparator>;
Statics mStatic;
public:
typedef typename Statics::iterator iterator;
virtual ~Store();
size_t getSize() const override;
iterator begin() const;
iterator end() const;
// Must be threadsafe! Called from terrain background loading threads.
// Not a big deal here, since ESM::Land can never be modified or inserted/erased
const ESM::Land* search(int x, int y) const;
const ESM::Land* find(int x, int y) const;
RecordId load(ESM::ESMReader& esm) override;
void setUp() override;
private:
bool mBuilt = false;
};
template <>
class Store<ESM::Cell> : public DynamicStore
{
struct DynamicExtCmp
{
bool operator()(const std::pair<int, int>& left, const std::pair<int, int>& right) const
{
if (left.first == right.first && left.second == right.second)
return false;
if (left.first == right.first)
return left.second > right.second;
// Exterior cells are listed in descending, row-major order,
// this is a workaround for an ambiguous chargen_plank reference in the vanilla game.
// there is one at -22,16 and one at -2,-9, the latter should be used.
return left.first > right.first;
}
};
typedef std::unordered_map<std::string, ESM::Cell*, Misc::StringUtils::CiHash, Misc::StringUtils::CiEqual>
DynamicInt;
typedef std::map<std::pair<int, int>, ESM::Cell*, DynamicExtCmp> DynamicExt;
std::unordered_map<ESM::RefId, ESM::Cell> mCells;
DynamicInt mInt;
DynamicExt mExt;
std::vector<ESM::Cell*> mSharedInt;
std::vector<ESM::Cell*> mSharedExt;
DynamicInt mDynamicInt;
DynamicExt mDynamicExt;
const ESM::Cell* search(const ESM::Cell& cell) const;
void handleMovedCellRefs(ESM::ESMReader& esm, ESM::Cell* cell);
public:
typedef SharedIterator<ESM::Cell> iterator;
const ESM::Cell* search(const ESM::RefId& id) const;
const ESM::Cell* search(std::string_view id) const;
const ESM::Cell* search(int x, int y) const;
const ESM::Cell* searchStatic(int x, int y) const;
const ESM::Cell* searchOrCreate(int x, int y);
const ESM::Cell* find(const ESM::RefId& id) const;
const ESM::Cell* find(std::string_view id) const;
const ESM::Cell* find(int x, int y) const;
void clearDynamic() override;
void setUp() override;
RecordId load(ESM::ESMReader& esm) override;
iterator intBegin() const;
iterator intEnd() const;
iterator extBegin() const;
iterator extEnd() const;
// Return the northernmost cell in the easternmost column.
const ESM::Cell* searchExtByName(std::string_view id) const;
// Return the northernmost cell in the easternmost column.
const ESM::Cell* searchExtByRegion(const ESM::RefId& id) const;
size_t getSize() const override;
size_t getExtSize() const;
size_t getIntSize() const;
const ESM::Cell* at(size_t index) const
{
if (index < mSharedInt.size())
return mSharedInt.at(index);
else
return mSharedExt.at(index - mSharedInt.size());
}
void listIdentifier(std::vector<ESM::RefId>& list) const override;
ESM::Cell* insert(const ESM::Cell& cell);
};
template <>
class Store<ESM::Pathgrid> : public DynamicStore
{
private:
std::unordered_map<ESM::RefId, ESM::Pathgrid> mStatic;
Store<ESM::Cell>* mCells;
public:
Store();
void setCells(Store<ESM::Cell>& cells);
RecordId load(ESM::ESMReader& esm) override;
size_t getSize() const override;
void setUp() override;
const ESM::Pathgrid* search(const ESM::RefId& name) const;
const ESM::Pathgrid* find(const ESM::RefId& name) const;
const ESM::Pathgrid* search(const ESM::Cell& cell) const;
const ESM::Pathgrid* search(const MWWorld::Cell& cell) const;
const ESM::Pathgrid* find(const ESM::Cell& cell) const;
};
template <>
class Store<ESM::Skill> : public TypedDynamicStore<ESM::Skill>
{
using TypedDynamicStore<ESM::Skill>::setUp;
public:
Store() = default;
void setUp(const MWWorld::Store<ESM::GameSetting>& settings);
};
template <>
class Store<ESM::MagicEffect> : public IndexedStore<ESM::MagicEffect>
{
public:
Store();
};
template <>
class Store<ESM::Attribute> : public TypedDynamicStore<ESM::Attribute>
{
using TypedDynamicStore<ESM::Attribute>::setUp;
public:
Store() = default;
void setUp(const MWWorld::Store<ESM::GameSetting>& settings);
};
template <>
class Store<ESM::WeaponType> : public DynamicStore
{
std::map<int, ESM::WeaponType> mStatic;
public:
typedef std::map<int, ESM::WeaponType>::const_iterator iterator;
Store();
const ESM::WeaponType* search(const int id) const;
// calls `search` and throws an exception if not found
const ESM::WeaponType* find(const int id) const;
RecordId load(ESM::ESMReader& esm) override { return RecordId({}, false); }
ESM::WeaponType* insert(const ESM::WeaponType& weaponType);
void setUp() override;
size_t getSize() const override;
iterator begin() const;
iterator end() const;
};
template <>
class Store<ESM::Dialogue> : public DynamicStore
{
typedef std::unordered_map<ESM::RefId, ESM::Dialogue> Static;
Static mStatic;
/// @par mShared usually preserves the record order as it came from the content files (this
/// is relevant for the spell autocalc code and selection order
/// for heads/hairs in the character creation)
/// @warning ESM::Dialogue Store currently implements a sorted order for unknown reasons.
std::vector<ESM::Dialogue*> mShared;
mutable bool mKeywordSearchModFlag;
mutable MWDialogue::KeywordSearch<int /*unused*/> mKeywordSearch;
public:
Store();
typedef SharedIterator<ESM::Dialogue> iterator;
void setUp() override;
const ESM::Dialogue* search(const ESM::RefId& id) const;
const ESM::Dialogue* find(const ESM::RefId& id) const;
iterator begin() const;
iterator end() const;
size_t getSize() const override;
bool eraseStatic(const ESM::RefId& id) override;
RecordId load(ESM::ESMReader& esm) override;
void listIdentifier(std::vector<ESM::RefId>& list) const override;
const MWDialogue::KeywordSearch<int>& getDialogIdKeywordSearch() const;
};
template <typename T>
class ESM4RefsStore : public TypedDynamicStore<T, ESM::FormId>
{
public:
void preprocessReferences(const Store<ESM4::Cell>& cells)
{
for (auto& [_, ref] : this->mStatic)
{
const ESM4::Cell* cell = cells.find(ref.mParent);
if (cell->isExterior() && (cell->mFlags & ESM4::Rec_Persistent))
{
const ESM4::Cell* actualCell = cells.searchExterior(
positionToExteriorCellLocation(ref.mPos.pos[0], ref.mPos.pos[1], cell->mParent));
if (actualCell)
ref.mParent = actualCell->mId;
}
mPerCellReferences[ref.mParent].push_back(&ref);
}
}
std::span<const T* const> getByCell(ESM::RefId cellId) const
{
auto it = mPerCellReferences.find(cellId);
if (it == mPerCellReferences.end())
return {};
return it->second;
}
private:
std::unordered_map<ESM::RefId, std::vector<T*>> mPerCellReferences;
};
template <>
class Store<ESM4::Reference> : public ESM4RefsStore<ESM4::Reference>
{
};
template <>
class Store<ESM4::ActorCharacter> : public ESM4RefsStore<ESM4::ActorCharacter>
{
};
template <>
class Store<ESM4::ActorCreature> : public ESM4RefsStore<ESM4::ActorCreature>
{
};
} // end namespace
#endif