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#pragma once
#include "global-coords.hpp"
#include <unordered_map>
#include <memory>
namespace floormat {
struct chunk;
struct world final
{
world();
std::shared_ptr<chunk> operator[](chunk_coords c) noexcept;
std::shared_ptr<chunk> maybe_chunk(chunk_coords c) noexcept;
std::shared_ptr<const chunk> maybe_chunk(chunk_coords c) const noexcept;
bool contains(chunk_coords c) const noexcept;
void clear();
void collect();
private:
static constexpr std::size_t initial_capacity = 64, collect_every = 100;
static constexpr float max_load_factor = .5;
std::size_t _last_collection = 0;
void maybe_collect();
struct hasher final { std::size_t operator()(chunk_coords c) const noexcept; };
std::unordered_map<chunk_coords, std::shared_ptr<chunk>, hasher> _chunks{initial_capacity};
};
} // namespace floormat
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