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#pragma once
#include "compat/defs.hpp"
#include "point.hpp"
#include <Corrade/Containers/Array.h>
#include <Magnum/Math/Vector2.h>
namespace floormat { class world; class chunk; }
namespace floormat::Search {
struct cache
{
struct chunk_cache;
Vector2ui size;
Vector2i start{(int)((1u << 31) - 1)};
Array<chunk_cache> array;
cache();
fm_DECLARE_DELETED_COPY_ASSIGNMENT(cache);
size_t get_chunk_index(Vector2i chunk) const;
static size_t get_chunk_index(Vector2i start, Vector2ui size, Vector2i coord);
static size_t get_tile_index(Vector2i pos, Vector2b offset);
static Vector2ui get_size_to_allocate(uint32_t max_dist);
void allocate(point from, uint32_t max_dist);
void add_index(size_t chunk_index, size_t tile_index, uint32_t index);
void add_index(point pt, uint32_t index);
uint32_t lookup_index(size_t chunk_index, size_t tile_index);
chunk* try_get_chunk(world& w, chunk_coords_ ch);
std::array<chunk*, 8> get_neighbors(world& w, chunk_coords_ ch0);
};
} // namespace floormat::Search
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