gdnative_cpp/include/core/AABB.hpp

111 lines
4.8 KiB
C++

/*************************************************************************/
/* AABB.hpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef AABB_H
#define AABB_H
#include "Vector3.hpp"
#include <cstdlib>
namespace godot {
class Plane;
class AABB {
public:
Vector3 position;
Vector3 size;
real_t get_area() const; /// get area
inline bool has_no_area() const {
return (size.x <= CMP_EPSILON || size.y <= CMP_EPSILON || size.z <= CMP_EPSILON);
}
inline bool has_no_surface() const {
return (size.x <= CMP_EPSILON && size.y <= CMP_EPSILON && size.z <= CMP_EPSILON);
}
inline const Vector3 &get_position() const { return position; }
inline void set_position(const Vector3 &p_position) { position = p_position; }
inline const Vector3 &get_size() const { return size; }
inline void set_size(const Vector3 &p_size) { size = p_size; }
bool operator==(const AABB &p_rval) const;
bool operator!=(const AABB &p_rval) const;
bool intersects(const AABB &p_aabb) const; /// Both AABBs overlap
bool intersects_inclusive(const AABB &p_aabb) const; /// Both AABBs (or their faces) overlap
bool encloses(const AABB &p_aabb) const; /// p_aabb is completely inside this
AABB merge(const AABB &p_with) const;
void merge_with(const AABB &p_aabb); ///merge with another AABB
AABB intersection(const AABB &p_aabb) const; ///get box where two intersect, empty if no intersection occurs
bool intersects_segment(const Vector3 &p_from, const Vector3 &p_to, Vector3 *r_clip = nullptr, Vector3 *r_normal = nullptr) const;
bool intersects_ray(const Vector3 &p_from, const Vector3 &p_dir, Vector3 *r_clip = nullptr, Vector3 *r_normal = nullptr) const;
bool smits_intersect_ray(const Vector3 &from, const Vector3 &p_dir, real_t t0, real_t t1) const;
bool intersects_convex_shape(const Plane *p_plane, int p_plane_count) const;
bool intersects_plane(const Plane &p_plane) const;
bool has_point(const Vector3 &p_point) const;
Vector3 get_support(const Vector3 &p_normal) const;
Vector3 get_longest_axis() const;
int get_longest_axis_index() const;
real_t get_longest_axis_size() const;
Vector3 get_shortest_axis() const;
int get_shortest_axis_index() const;
real_t get_shortest_axis_size() const;
AABB grow(real_t p_by) const;
void grow_by(real_t p_amount);
void get_edge(int p_edge, Vector3 &r_from, Vector3 &r_to) const;
Vector3 get_endpoint(int p_point) const;
AABB expand(const Vector3 &p_vector) const;
void project_range_in_plane(const Plane &p_plane, real_t &r_min, real_t &r_max) const;
void expand_to(const Vector3 &p_vector); /** expand to contain a point if necesary */
operator String() const;
inline AABB() {}
inline AABB(const Vector3 &p_pos, const Vector3 &p_size) {
position = p_pos;
size = p_size;
}
};
} // namespace godot
#endif // RECT3_H