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#pragma once
#include "compat/defs.hpp"
#include "src/rotation.hpp"
#include "src/pass-mode.hpp"
#include <array>
#include <bitset>
#include <vector>
#include <Corrade/Containers/String.h>
#include <Magnum/Math/Vector2.h>
#include <Magnum/Math/Color.h>
#include <Magnum/GL/Texture.h>
namespace floormat { class wall_atlas; }
namespace floormat::Wall {
struct Frame
{
Vector2ui offset = { (unsigned)-1, (unsigned)-1 };
bool operator==(const Frame&) const noexcept;
};
struct Group
{
uint32_t index = (uint32_t)-1, count = 0;
Vector2ui pixel_size;
Color4 tint_mult{1,1,1,1};
Color3 tint_add;
uint8_t from_rotation = (uint8_t)-1; // applies only to images
bool mirrored : 1 = false,
default_tint : 1 = true;
explicit operator bool() const noexcept { return !is_empty(); }
bool is_empty() const noexcept { return count == 0; }
bool operator==(const Group&) const noexcept;
};
enum class Group_ : uint8_t { wall, overlay, side, top, corner_L, corner_R, COUNT };
enum class Direction_ : uint8_t { N, E, S, W, COUNT };
struct Direction
{
using memfn_ptr = Group Direction::*;
struct member_tuple { StringView str; memfn_ptr member; Group_ tag; };
explicit operator bool() const noexcept { return !is_empty(); }
bool is_empty() const noexcept;
Group wall, overlay, side, top;
Group corner_L, corner_R;
pass_mode passability = pass_mode::blocked;
const Group& group(Group_ i) const;
const Group& group(size_t i) const;
Group& group(Group_ i);
Group& group(size_t i);
static constexpr inline member_tuple groups[] = {
{ "wall"_s, &Direction::wall, Group_::wall },
{ "overlay"_s, &Direction::overlay, Group_::overlay },
{ "side"_s, &Direction::side, Group_::side },
{ "top"_s, &Direction::top, Group_::top },
{ "corner-L"_s, &Direction::corner_L, Group_::corner_L, },
{ "corner-R"_s, &Direction::corner_R, Group_::corner_R, },
};
static_assert(std::size(groups) == (size_t)Group_::COUNT);
bool operator==(const Direction&) const noexcept;
};
struct Info
{
String name;
unsigned depth = 0;
bool operator==(const Info&) const noexcept;
};
struct DirArrayIndex {
uint8_t val = (uint8_t)-1;
operator bool() const { return val != (uint8_t)-1; }
bool operator==(const DirArrayIndex&) const noexcept;
};
} // namespace floormat::Wall
namespace floormat {
struct wall_atlas_def final
{
private:
using Frame = Wall::Frame;
using Direction = Wall::Direction;
using Info = Wall::Info;
using DirArrayIndex = Wall::DirArrayIndex;
public:
bool operator==(const wall_atlas_def&) const noexcept;
Info header;
std::vector<Frame> frames;
std::vector<Direction> direction_array;
std::array<DirArrayIndex, 4> direction_map;
std::bitset<(size_t)Wall::Direction_::COUNT> direction_mask{0};
static wall_atlas_def deserialize(StringView filename);
void serialize(StringView filename) const;
static void serialize(StringView filename, const Info& header, ArrayView<const Frame> frames,
ArrayView<const Direction> dir_array, std::array<DirArrayIndex, 4> dir_map);
};
class wall_atlas final
{
using Frame = Wall::Frame;
using Group = Wall::Group;
using Direction_ = Wall::Direction_;
using Direction = Wall::Direction;
using Info = Wall::Info;
using Group_ = Wall::Group_;
using DirArrayIndex = Wall::DirArrayIndex;
std::vector<Direction> _dir_array;
std::vector<Frame> _frame_array;
Info _info;
String _path;
GL::Texture2D _texture{NoCreate};
std::array<DirArrayIndex, 4> _direction_map;
Direction* get_Direction(Direction_ num) const;
public:
fm_DECLARE_DELETED_MOVE_ASSIGNMENT(wall_atlas);
wall_atlas() noexcept;
~wall_atlas() noexcept;
wall_atlas(wall_atlas_def def, String path, const ImageView2D& img);
void serialize(StringView filename) const;
const Group* group(Direction_ d, Group_ tag) const;
const Group* group(size_t dir, size_t group) const;
const Group* group(size_t dir, Group_ tag) const;
const Group* group(const Direction& dir, Group_ tag) const;
const Group* group(const Direction* dir, Group_ tag) const;
const Direction* direction(size_t dir) const;
uint8_t direction_count() const;
ArrayView<const Frame> frames(const Group& a) const;
ArrayView<const Frame> raw_frame_array() const;
const Info& info() const { return _info; }
StringView name() const { return _info.name; }
//StringView path() const { return _path; }
GL::Texture2D& texture();
static size_t enum_to_index(enum rotation x);
//static void validate(const wall_atlas& a, const ImageView2D& img) noexcept(false);
static Vector2i expected_size(unsigned depth, Group_ group);
struct dir_tuple
{
StringView name;
Direction_ direction;
};
static constexpr dir_tuple directions[] = {
{ "n"_s, Direction_::N },
{ "e"_s, Direction_::E },
{ "s"_s, Direction_::S },
{ "w"_s, Direction_::W },
};
};
} // namespace floormat
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