/*
    by korenkonder
    GitHub/GitLab: korenkonder
*/

#pragma once

#include "../KKdLib/default.hpp"
#include "../KKdLib/mat.hpp"
#include "../KKdLib/vec.hpp"

struct camera {
    mat4 view;
    mat4 inv_view;
    mat4 projection;
    mat4 inv_projection;
    mat4 view_projection;
    mat4 inv_view_projection;
    mat4 view_projection_prev;
    mat4 inv_view_projection_prev;
    mat3 view_mat3;
    mat3 inv_view_mat3;
    mat4 view_rot;
    mat4 inv_view_rot;
    mat4 projection_aet_2d;
    mat4 projection_aet_3d;
    vec3 forward;
    vec3 rotation;
    vec3 view_point;
    vec3 interest;
    int32_t render_width;
    int32_t render_height;
    int32_t sprite_width;
    int32_t sprite_height;
    vec3 field_1E4;
    vec3 field_1F0;
    vec3 field_1FC;
    vec3 field_208;
    double_t yaw;
    double_t pitch;
    double_t roll;
    double_t aspect;
    double_t fov;
    double_t fov_rad;
    double_t max_distance;
    double_t min_distance;
    bool changed_view;
    bool changed_proj;
    bool changed_proj_aet;
    bool fast_change;
    bool fast_change_hist0;
    bool fast_change_hist1;

    camera();
    virtual ~camera();

    void initialize(double_t aspect, int32_t render_width, int32_t render_height,
        int32_t sprite_width, int32_t sprite_height);
    double_t get_min_distance();
    void set_min_distance(double_t value);
    double_t get_max_distance();
    void set_max_distance(double_t value);
    double_t get_aspect();
    void set_aspect(double_t value);
    double_t get_fov();
    void set_fov(double_t value);
    double_t get_pitch();
    void set_pitch(double_t value);
    double_t get_yaw();
    void set_yaw(double_t value);
    double_t get_roll();
    void set_roll(double_t value);
    void get_view_point(vec3& value);
    void set_view_point(const vec3& value);
    void set_view_point(const vec3&& value);
    void get_interest(vec3& value);
    void set_interest(const vec3& value);
    void set_interest(const vec3&& value);
    void get_res(int32_t& render_width, int32_t& render_height,
        int32_t& sprite_width, int32_t& sprite_height);
    void set_res(int32_t render_width, int32_t render_height,
        int32_t sprite_width, int32_t sprite_height);
    void set_fast_change(bool value);
    void set_fast_change_hist0(bool value);
    void set_fast_change_hist1(bool value);
    void reset();
    void move(double_t move_x, double_t move_y);
    void rotate(double_t rotate_x, double_t rotate_y);
    void set(const vec3& view_point, const vec3& interest,
        const vec3& trans, const vec3& rot, const vec3& scale, double_t roll, double_t fov);
    void set(const vec3&& view_point, const vec3&& interest,
        const vec3&& trans, const vec3&& rot, const vec3&& scale, double_t roll, double_t fov);
    void set_position(const vec3& pos);
    void set_position(const vec3&& pos);
    void update();
    void update_data();
};