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#pragma once
#include "object-id.hpp"
#include "tile.hpp"
#include "local-coords.hpp"
#include "src/RTree-fwd.h"
#include "global-coords.hpp"
#include "wall-defs.hpp"
#include "collision.hpp"
#include <type_traits>
#include <array>
#include <Corrade/Containers/Array.h>
#include <Corrade/Containers/Pointer.h>
#include <Magnum/GL/Mesh.h>
namespace floormat {
class anim_atlas;
class wall_atlas;
struct object;
struct object_proto;
class tile_iterator;
class tile_const_iterator;
class chunk final
{
public:
friend struct tile_ref;
friend struct object;
friend class world;
struct pass_region;
tile_ref operator[](size_t idx) noexcept;
tile_proto operator[](size_t idx) const noexcept;
tile_ref operator[](local_coords xy) noexcept;
tile_proto operator[](local_coords xy) const noexcept;
chunk_coords_ coord() const noexcept;
tile_ref at_offset(local_coords pos, Vector2i off);
tile_ref at_offset(tile_ref r, Vector2i off);
Optional<tile_ref> at_offset_(local_coords pos, Vector2i off);
Optional<tile_ref> at_offset_(tile_ref r, Vector2i off);
using iterator = tile_iterator;
using const_iterator = tile_const_iterator;
iterator begin() noexcept;
iterator end() noexcept;
const_iterator cbegin() const noexcept;
const_iterator cend() const noexcept;
const_iterator begin() const noexcept;
const_iterator end() const noexcept;
bool empty(bool force = false) const noexcept;
explicit chunk(class world& w, chunk_coords_ ch) noexcept;
~chunk() noexcept;
chunk(const chunk&) = delete;
chunk& operator=(const chunk&) = delete;
chunk(chunk&&) noexcept;
chunk& operator=(chunk&&) noexcept;
void mark_ground_modified() noexcept;
void mark_walls_modified() noexcept;
void mark_scenery_modified() noexcept;
void mark_passability_modified() noexcept;
void mark_region_modified() noexcept;
void mark_modified() noexcept;
bool is_passability_modified() const noexcept;
bool is_scenery_modified() const noexcept;
bool is_region_modified() const noexcept;
struct ground_mesh_tuple final {
GL::Mesh& mesh;
const ArrayView<const uint8_t> ids;
const size_t size;
};
struct wall_mesh_tuple final {
GL::Mesh& mesh;
const ArrayView<const uint_fast16_t> indexes;
const size_t size;
};
struct topo_sort_data;
struct object_draw_order;
struct scenery_mesh_tuple;
struct scenery_scratch_buffers;
struct vertex {
Vector3 position;
Vector2 texcoords;
float depth = -1;
};
using RTree = ::RTree<object_id, float, 2, float>;
void ensure_alloc_ground();
void ensure_alloc_walls();
ground_mesh_tuple ensure_ground_mesh() noexcept;
ground_atlas* ground_atlas_at(size_t i) const noexcept;
wall_atlas* wall_atlas_at(size_t i) const noexcept;
wall_mesh_tuple ensure_wall_mesh() noexcept;
scenery_mesh_tuple ensure_scenery_mesh(scenery_scratch_buffers buffers) noexcept;
scenery_mesh_tuple ensure_scenery_mesh() noexcept;
void ensure_passability() noexcept;
RTree* rtree() noexcept;
class world& world() noexcept { return *_world; }
[[nodiscard]] bool can_place_object(const object_proto& proto, local_coords pos);
void add_object(const std::shared_ptr<object>& e);
void add_object_unsorted(const std::shared_ptr<object>& e);
void sort_objects();
void remove_object(size_t i);
ArrayView<const std::shared_ptr<object>> objects() const;
// for drawing only
static constexpr size_t max_wall_quad_count =
TILE_COUNT*Wall::Direction_COUNT*(Wall::Group_COUNT+4);
const pass_region* get_pass_region();
void make_pass_region(pass_region& ret);
private:
struct ground_stuff
{
std::array<std::shared_ptr<ground_atlas>, TILE_COUNT> atlases;
std::array<uint8_t, TILE_COUNT> indexes = {};
std::array<variant_t, TILE_COUNT> variants = {};
};
struct wall_stuff
{
std::array<std::shared_ptr<wall_atlas>, 2*TILE_COUNT> atlases;
std::array<variant_t, 2*TILE_COUNT> variants;
std::array<uint_fast16_t, max_wall_quad_count> mesh_indexes;
};
Pointer<ground_stuff> _ground;
Pointer<wall_stuff> _walls;
pass_region* _region = nullptr;
Array<std::shared_ptr<object>> _objects;
class world* _world;
GL::Mesh ground_mesh{NoCreate}, wall_mesh{NoCreate}, scenery_mesh{NoCreate};
Pointer<RTree> _rtree;
chunk_coords_ _coord;
mutable bool _maybe_empty : 1 = true,
_ground_modified : 1 = true,
_walls_modified : 1 = true,
_scenery_modified : 1 = true,
_pass_modified : 1 = true,
_region_modified : 1 = true,
_teardown : 1 = false,
_objects_sorted : 1 = true;
void ensure_scenery_buffers(scenery_scratch_buffers bufs);
static topo_sort_data make_topo_sort_data(object& e, uint32_t mesh_idx);
static void delete_pass_region(pass_region*& ptr);
struct bbox final // NOLINT(cppcoreguidelines-pro-type-member-init)
{
object_id id;
Vector2i start, end;
bool operator==(const bbox& other) const noexcept;
};
static bool _bbox_for_scenery(const object& s, bbox& value) noexcept;
static bool _bbox_for_scenery(const object& s, local_coords local, Vector2b offset, Vector2b bbox_offset, Vector2ub bbox_size, bbox& value) noexcept;
void _remove_bbox(const bbox& x);
void _add_bbox(const bbox& x);
void _replace_bbox(const bbox& x0, const bbox& x, bool b0, bool b);
GL::Mesh make_wall_mesh();
template<size_t N> static std::array<std::array<UnsignedShort, 6>, N*TILE_COUNT> make_index_array(size_t max);
};
} // namespace floormat
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