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#pragma once

#include <Corrade/Containers/Array.h>
#include <Corrade/Containers/String.h>
#include <Magnum/Magnum.h>
#include <Magnum/Math/Vector2.h>
#include <Magnum/Math/Vector3.h>

namespace floormat {

struct anim_frame final
{
    Vector2i ground{};
    Vector2ui offset{}, size{};
};

enum class anim_direction : unsigned char
{
    N, NE, E, SE, S, SW, W, NW,
    COUNT,
};

struct anim_group final
{
    String name{}, mirror_from{};
    Array<anim_frame> frames{};
    Vector2ui ground{}; // for use in anim-crop-tool only
    Vector2s z_offset{}, depth_offset{};
    Vector3b offset{};
};

enum class anim_scale_type : unsigned char { invalid, ratio, fixed, COUNT, };

struct anim_scale final
{
    struct ratio { float f; };
    struct fixed { unsigned width_or_height; bool is_width; };
    struct empty {};
    union {
        struct ratio r;
        struct fixed f;
        struct empty e = {};
    };
    anim_scale_type type = anim_scale_type::invalid;
    constexpr anim_scale() = default;
    constexpr anim_scale(const anim_scale&) = default;
    constexpr anim_scale& operator=(const anim_scale&) = default;
    constexpr anim_scale(fixed x) noexcept : f{x}, type{anim_scale_type::fixed} {}
    constexpr anim_scale(ratio x) noexcept : r{x}, type{anim_scale_type::ratio} {}
    Vector2ui scale_to(Vector2ui image_size) const;
    Vector2 scale_to_(Vector2ui image_size) const;
};

struct anim_def final
{
    String object_name{}, anim_name{};
    Array<anim_group> groups{};
    Vector2ui pixel_size{};
    anim_scale scale = anim_scale::ratio{1};
    uint32_t nframes = 0, fps = 0, action_frame = 0, action_frame2 = 0;
};

} // namespace floormat