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#pragma once
#include "pass-mode.hpp"
#include "tile-defs.hpp"
#include "rotation.hpp"
#include <cstdint>
#include <memory>
#include <type_traits>
#include <Magnum/Math/Vector2.h>
#include <Magnum/Magnum.h>
namespace floormat {
struct chunk;
struct anim_atlas;
enum class scenery_type : std::uint8_t {
none, generic, door,
};
struct scenery final
{
struct none_tag_t final {};
struct generic_tag_t final {};
struct door_tag_t final {};
static constexpr auto none = none_tag_t{};
static constexpr auto generic = generic_tag_t{};
static constexpr auto door = door_tag_t{};
using frame_t = std::uint16_t;
std::uint16_t delta = 0;
frame_t frame = 0;
Vector2b offset, bbox_offset;
Vector2ub bbox_size{usTILE_SIZE2/2};
rotation r : 3 = rotation::N;
scenery_type type : 3 = scenery_type::none;
pass_mode passability : 2 = pass_mode::shoot_through;
std::uint8_t active : 1 = false;
std::uint8_t closing : 1 = false;
std::uint8_t interactive : 1 = false;
constexpr scenery() noexcept;
constexpr scenery(none_tag_t) noexcept;
scenery(generic_tag_t, const anim_atlas& atlas, rotation r, frame_t frame,
pass_mode passability, bool active, bool interactive,
Vector2b offset, Vector2b bbox_offset, Vector2ub bbox_size);
scenery(door_tag_t, const anim_atlas& atlas, rotation r, bool is_open,
Vector2b offset, Vector2b bbox_offset, Vector2ub bbox_size);
bool operator==(const scenery&) const noexcept;
bool can_activate(const anim_atlas& anim) const noexcept;
bool activate(const anim_atlas& atlas);
void update(float dt, const anim_atlas& anim);
void rotate(rotation r);
};
constexpr scenery::scenery() noexcept : scenery{scenery::none_tag_t{}} {}
constexpr scenery::scenery(none_tag_t) noexcept {}
struct scenery_proto final
{
std::shared_ptr<anim_atlas> atlas;
scenery frame;
scenery_proto() noexcept;
scenery_proto(const std::shared_ptr<anim_atlas>& atlas, const scenery& frame) noexcept;
scenery_proto& operator=(const scenery_proto&) noexcept;
scenery_proto(const scenery_proto&) noexcept;
template<typename... Ts>
scenery_proto(scenery::generic_tag_t, const std::shared_ptr<anim_atlas>& atlas, Ts&&... args) :
atlas{atlas}, frame{scenery::generic, *atlas, std::forward<Ts>(args)...}
{}
template<typename... Ts>
scenery_proto(scenery::door_tag_t, const std::shared_ptr<anim_atlas>& atlas, Ts&&... args) :
atlas{atlas}, frame{scenery::door, *atlas, std::forward<Ts>(args)...}
{}
operator bool() const noexcept;
};
struct scenery_ref final {
scenery_ref(struct chunk& c, std::size_t i) noexcept;
scenery_ref(const scenery_ref&) noexcept;
scenery_ref(scenery_ref&&) noexcept;
scenery_ref& operator=(const scenery_proto& proto) noexcept;
operator scenery_proto() const noexcept;
operator bool() const noexcept;
struct chunk& chunk() noexcept;
std::uint8_t index() const noexcept;
template<std::size_t N> std::tuple_element_t<N, scenery_ref>& get() & { if constexpr(N == 0) return atlas; else return frame; }
template<std::size_t N> std::tuple_element_t<N, scenery_ref>& get() && { if constexpr(N == 0) return atlas; else return frame; }
std::shared_ptr<anim_atlas>& atlas;
scenery& frame;
private:
struct chunk* c;
std::uint8_t idx;
};
} // namespace floormat
template<> struct std::tuple_size<floormat::scenery_ref> final : std::integral_constant<std::size_t, 2> {};
template<> struct std::tuple_element<0, floormat::scenery_ref> final { using type = std::shared_ptr<floormat::anim_atlas>; };
template<> struct std::tuple_element<1, floormat::scenery_ref> final { using type = floormat::scenery; };
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