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#pragma once
#include "compat/defs.hpp"
#include "src/global-coords.hpp"
#include "src/rotation.hpp"
#include "src/pass-mode.hpp"
#include "src/entity-type.hpp"
#include "src/object-id.hpp"
#include <memory>
#include <vector>
namespace floormat {
template<typename T> struct entity_type_;
struct anim_atlas;
struct world;
struct chunk;
struct entity_proto
{
std::shared_ptr<anim_atlas> atlas;
Vector2b offset, bbox_offset;
Vector2ub bbox_size = Vector2ub(iTILE_SIZE2);
uint16_t delta = 0, frame = 0;
entity_type type : 3 = entity_type::none;
rotation r : rotation_BITS = rotation::N;
pass_mode pass : pass_mode_BITS = pass_mode::see_through;
entity_proto& operator=(const entity_proto&);
entity_proto();
entity_proto(const entity_proto&);
virtual bool operator==(const entity_proto&) const;
virtual ~entity_proto() noexcept;
entity_type type_of() const noexcept;
};
struct entity
{
fm_DECLARE_DELETED_COPY_ASSIGNMENT(entity);
const object_id id = 0;
uint64_t last_update = 0;
struct chunk* const c;
std::shared_ptr<anim_atlas> atlas;
const global_coords coord;
const Vector2b offset, bbox_offset;
const Vector2ub bbox_size;
uint16_t delta = 0, frame = 0;
const rotation r = rotation::N;
const pass_mode pass = pass_mode::see_through;
virtual ~entity() noexcept;
virtual Vector2 ordinal_offset(Vector2b offset) const = 0;
virtual Vector2 depth_offset() const = 0;
float ordinal() const;
float ordinal(local_coords xy, Vector2b offset, Vector2s z_offset) const;
struct chunk& chunk() const;
size_t index() const;
explicit operator entity_proto() const;
virtual entity_type type() const noexcept = 0;
virtual bool can_activate(size_t i) const;
virtual bool activate(size_t i);
virtual bool update(size_t i, float dt) = 0;
virtual void rotate(size_t i, rotation r);
virtual bool can_rotate(global_coords coord, rotation new_r, rotation old_r, Vector2b offset, Vector2b bbox_offset, Vector2ub bbox_size);
virtual bool can_move_to(Vector2i delta, global_coords coord, Vector2b offset, Vector2b bbox_offset, Vector2ub bbox_aize);
virtual void set_bbox(Vector2b offset, Vector2b bbox_offset, Vector2ub bbox_size, pass_mode pass);
entity_type type_of() const noexcept;
static Pair<global_coords, Vector2b> normalize_coords(global_coords coord, Vector2b cur_offset, Vector2i delta);
bool is_dynamic() const;
bool can_rotate(rotation new_r);
bool can_move_to(Vector2i delta);
bool move_to(size_t& i, Vector2i delta, rotation new_r);
protected:
entity(object_id id, struct chunk& c, const entity_proto& proto);
void set_bbox_(Vector2b offset, Vector2b bbox_offset, Vector2ub bbox_size, pass_mode pass);
};
} // namespace floormat
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