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v1.4.4

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Aria 2025-03-21 22:23:30 +11:00
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source/game/StarItemDescriptor.hpp Normal file
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#ifndef STAR_ITEM_DESCRIPTOR_HPP
#define STAR_ITEM_DESCRIPTOR_HPP
#include "StarJson.hpp"
#include "StarDataStream.hpp"
#include "StarBiMap.hpp"
namespace Star {
STAR_CLASS(ItemDescriptor);
STAR_CLASS(Item);
STAR_STRUCT(VersionedJson);
class ItemDescriptor {
public:
// Loads ItemDescriptor from store format.
static ItemDescriptor loadStore(Json const& store);
ItemDescriptor();
ItemDescriptor(String name, uint64_t count, Json parameters = Json());
// Populate from a configuration JsonArray containing up to 3 elements, the
// name, count, and then any item parameters. If the json is a map, looks
// for keys 'name', 'parameters', and 'count'.
explicit ItemDescriptor(Json const& spec);
String const& name() const;
uint64_t count() const;
Json const& parameters() const;
ItemDescriptor singular() const;
ItemDescriptor withCount(uint64_t count) const;
ItemDescriptor multiply(uint64_t count) const;
ItemDescriptor applyParameters(JsonObject const& parameters) const;
// Descriptor is the default constructed ItemDescriptor()
bool isNull() const;
// Descriptor is not null
explicit operator bool() const;
// True if descriptor is null OR if descriptor is size 0
bool isEmpty() const;
bool operator==(ItemDescriptor const& rhs) const;
bool operator!=(ItemDescriptor const& rhs) const;
bool matches(ItemDescriptor const& other, bool exactMatch = false) const;
bool matches(ItemConstPtr const& other, bool exactMatch = false) const;
// Stores ItemDescriptor to versioned structure not meant for human reading / writing.
Json diskStore() const;
// Converts ItemDescriptor to spec format
Json toJson() const;
friend DataStream& operator>>(DataStream& ds, ItemDescriptor& itemDescriptor);
friend DataStream& operator<<(DataStream& ds, ItemDescriptor const& itemDescriptor);
friend std::ostream& operator<<(std::ostream& os, ItemDescriptor const& descriptor);
friend struct hash<ItemDescriptor>;
private:
ItemDescriptor(String name, uint64_t count, Json parameters, Maybe<size_t> parametersHash);
size_t parametersHash() const;
String m_name;
uint64_t m_count;
Json m_parameters;
mutable Maybe<size_t> m_parametersHash;
};
template <>
struct hash<ItemDescriptor> {
size_t operator()(ItemDescriptor const& v) const;
};
}
#endif