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/*************************************************************************/
/* rect2i.h */
/*************************************************************************/
/* 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.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef RECT2I_H
#define RECT2I_H
#include "core/error/error_macros.h"
#include "core/math/vector2i.h"
class String;
struct Rect2;
struct _NO_DISCARD_ Rect2i {
Point2i position;
Size2i size;
const Point2i &get_position() const { return position; }
void set_position(const Point2i &p_position) { position = p_position; }
const Size2i &get_size() const { return size; }
void set_size(const Size2i &p_size) { size = p_size; }
int get_area() const { return size.width * size.height; }
_FORCE_INLINE_ Vector2i get_center() const { return position + (size / 2); }
inline bool intersects(const Rect2i &p_rect) const {
#ifdef MATH_CHECKS
if (unlikely(size.x < 0 || size.y < 0 || p_rect.size.x < 0 || p_rect.size.y < 0)) {
ERR_PRINT("Rect2i size is negative, this is not supported. Use Rect2i.abs() to get a Rect2i with a positive size.");
}
#endif
if (position.x >= (p_rect.position.x + p_rect.size.width)) {
return false;
}
if ((position.x + size.width) <= p_rect.position.x) {
return false;
}
if (position.y >= (p_rect.position.y + p_rect.size.height)) {
return false;
}
if ((position.y + size.height) <= p_rect.position.y) {
return false;
}
return true;
}
inline bool encloses(const Rect2i &p_rect) const {
#ifdef MATH_CHECKS
if (unlikely(size.x < 0 || size.y < 0 || p_rect.size.x < 0 || p_rect.size.y < 0)) {
ERR_PRINT("Rect2i size is negative, this is not supported. Use Rect2i.abs() to get a Rect2i with a positive size.");
}
#endif
return (p_rect.position.x >= position.x) && (p_rect.position.y >= position.y) &&
((p_rect.position.x + p_rect.size.x) <= (position.x + size.x)) &&
((p_rect.position.y + p_rect.size.y) <= (position.y + size.y));
}
_FORCE_INLINE_ bool has_area() const {
return size.x > 0 && size.y > 0;
}
// Returns the instersection between two Rect2is or an empty Rect2i if there is no intersection
inline Rect2i intersection(const Rect2i &p_rect) const {
Rect2i new_rect = p_rect;
if (!intersects(new_rect)) {
return Rect2i();
}
new_rect.position.x = MAX(p_rect.position.x, position.x);
new_rect.position.y = MAX(p_rect.position.y, position.y);
Point2i p_rect_end = p_rect.position + p_rect.size;
Point2i end = position + size;
new_rect.size.x = MIN(p_rect_end.x, end.x) - new_rect.position.x;
new_rect.size.y = MIN(p_rect_end.y, end.y) - new_rect.position.y;
return new_rect;
}
inline Rect2i merge(const Rect2i &p_rect) const { ///< return a merged rect
#ifdef MATH_CHECKS
if (unlikely(size.x < 0 || size.y < 0 || p_rect.size.x < 0 || p_rect.size.y < 0)) {
ERR_PRINT("Rect2i size is negative, this is not supported. Use Rect2i.abs() to get a Rect2i with a positive size.");
}
#endif
Rect2i new_rect;
new_rect.position.x = MIN(p_rect.position.x, position.x);
new_rect.position.y = MIN(p_rect.position.y, position.y);
new_rect.size.x = MAX(p_rect.position.x + p_rect.size.x, position.x + size.x);
new_rect.size.y = MAX(p_rect.position.y + p_rect.size.y, position.y + size.y);
new_rect.size = new_rect.size - new_rect.position; //make relative again
return new_rect;
}
bool has_point(const Point2i &p_point) const {
#ifdef MATH_CHECKS
if (unlikely(size.x < 0 || size.y < 0)) {
ERR_PRINT("Rect2i size is negative, this is not supported. Use Rect2i.abs() to get a Rect2i with a positive size.");
}
#endif
if (p_point.x < position.x) {
return false;
}
if (p_point.y < position.y) {
return false;
}
if (p_point.x >= (position.x + size.x)) {
return false;
}
if (p_point.y >= (position.y + size.y)) {
return false;
}
return true;
}
bool operator==(const Rect2i &p_rect) const { return position == p_rect.position && size == p_rect.size; }
bool operator!=(const Rect2i &p_rect) const { return position != p_rect.position || size != p_rect.size; }
Rect2i grow(int p_amount) const {
Rect2i g = *this;
g.position.x -= p_amount;
g.position.y -= p_amount;
g.size.width += p_amount * 2;
g.size.height += p_amount * 2;
return g;
}
inline Rect2i grow_side(Side p_side, int p_amount) const {
Rect2i g = *this;
g = g.grow_individual((SIDE_LEFT == p_side) ? p_amount : 0,
(SIDE_TOP == p_side) ? p_amount : 0,
(SIDE_RIGHT == p_side) ? p_amount : 0,
(SIDE_BOTTOM == p_side) ? p_amount : 0);
return g;
}
inline Rect2i grow_side_bind(uint32_t p_side, int p_amount) const {
return grow_side(Side(p_side), p_amount);
}
inline Rect2i grow_individual(int p_left, int p_top, int p_right, int p_bottom) const {
Rect2i g = *this;
g.position.x -= p_left;
g.position.y -= p_top;
g.size.width += p_left + p_right;
g.size.height += p_top + p_bottom;
return g;
}
_FORCE_INLINE_ Rect2i expand(const Vector2i &p_vector) const {
Rect2i r = *this;
r.expand_to(p_vector);
return r;
}
inline void expand_to(const Point2i &p_vector) {
#ifdef MATH_CHECKS
if (unlikely(size.x < 0 || size.y < 0)) {
ERR_PRINT("Rect2i size is negative, this is not supported. Use Rect2i.abs() to get a Rect2i with a positive size.");
}
#endif
Point2i begin = position;
Point2i end = position + size;
if (p_vector.x < begin.x) {
begin.x = p_vector.x;
}
if (p_vector.y < begin.y) {
begin.y = p_vector.y;
}
if (p_vector.x > end.x) {
end.x = p_vector.x;
}
if (p_vector.y > end.y) {
end.y = p_vector.y;
}
position = begin;
size = end - begin;
}
_FORCE_INLINE_ Rect2i abs() const {
return Rect2i(Point2i(position.x + MIN(size.x, 0), position.y + MIN(size.y, 0)), size.abs());
}
_FORCE_INLINE_ void set_end(const Vector2i &p_end) {
size = p_end - position;
}
_FORCE_INLINE_ Vector2i get_end() const {
return position + size;
}
operator String() const;
operator Rect2() const;
Rect2i() {}
Rect2i(int p_x, int p_y, int p_width, int p_height) :
position(Point2i(p_x, p_y)),
size(Size2i(p_width, p_height)) {
}
Rect2i(const Point2i &p_pos, const Size2i &p_size) :
position(p_pos),
size(p_size) {
}
};
#endif // RECT2I_H
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