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#include "shared/pch.hh"
#include "shared/item_registry.hh"
#include "core/crc64.hh"
#include "shared/voxel_registry.hh"
std::unordered_map<std::string, ItemInfoBuilder> item_registry::builders = {};
std::unordered_map<std::string, item_id> item_registry::names = {};
std::vector<std::shared_ptr<ItemInfo>> item_registry::items = {};
ItemInfoBuilder::ItemInfoBuilder(const char *name)
{
prototype.name = name;
prototype.texture = std::string();
prototype.place_voxel = NULL_VOXEL_ID;
prototype.cached_texture = nullptr;
}
ItemInfoBuilder &ItemInfoBuilder::set_texture(const char *texture)
{
prototype.texture = texture;
prototype.cached_texture = nullptr;
return *this;
}
ItemInfoBuilder &ItemInfoBuilder::set_place_voxel(voxel_id place_voxel)
{
prototype.place_voxel = place_voxel;
return *this;
}
item_id ItemInfoBuilder::build(void) const
{
const auto it = item_registry::names.find(prototype.name);
if(it != item_registry::names.cend()) {
spdlog::warn("item_registry: cannot build {}: name already present", prototype.name);
return it->second;
}
auto new_info = std::make_shared<ItemInfo>();
new_info->name = prototype.name;
new_info->texture = prototype.texture;
new_info->place_voxel = prototype.place_voxel;
new_info->cached_texture = nullptr;
item_registry::items.push_back(new_info);
item_registry::names.insert_or_assign(prototype.name, static_cast<item_id>(item_registry::items.size()));
return static_cast<item_id>(item_registry::items.size());
}
ItemInfoBuilder &item_registry::construct(const char *name)
{
const auto it = item_registry::builders.find(name);
if(it != item_registry::builders.cend())
return it->second;
return item_registry::builders.emplace(name, ItemInfoBuilder(name)).first->second;
}
ItemInfo *item_registry::find(const char *name)
{
const auto it = item_registry::names.find(name);
if(it != item_registry::names.cend())
return item_registry::find(it->second);
return nullptr;
}
ItemInfo *item_registry::find(const item_id item)
{
if((item != NULL_ITEM_ID) && (item <= item_registry::items.size()))
return item_registry::items[item - 1].get();
return nullptr;
}
void item_registry::purge(void)
{
item_registry::builders.clear();
item_registry::names.clear();
item_registry::items.clear();
}
std::uint64_t item_registry::calcualte_checksum(void)
{
std::uint64_t result = 0;
for(const auto &info : item_registry::items) {
result = crc64::get(info->name, result);
result += static_cast<std::uint64_t>(info->place_voxel);
}
return result;
}
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