134 lines
2.9 KiB
C++
134 lines
2.9 KiB
C++
#ifndef RECT2_H
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#define RECT2_H
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#include "Vector2.hpp"
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#include <cmath>
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#include <cstdlib>
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namespace godot {
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class String;
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typedef Vector2 Size2;
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typedef Vector2 Point2;
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struct Transform2D;
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struct Rect2 {
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Point2 pos;
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Size2 size;
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inline const Vector2& get_pos() const { return pos; }
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inline void set_pos(const Vector2& p_pos) { pos=p_pos; }
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inline const Vector2& get_size() const { return size; }
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inline void set_size(const Vector2& p_size) { size=p_size; }
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inline real_t get_area() const { return size.width*size.height; }
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inline bool intersects(const Rect2& p_rect) const {
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if ( pos.x >= (p_rect.pos.x + p_rect.size.width) )
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return false;
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if ( (pos.x+size.width) <= p_rect.pos.x )
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return false;
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if ( pos.y >= (p_rect.pos.y + p_rect.size.height) )
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return false;
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if ( (pos.y+size.height) <= p_rect.pos.y )
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return false;
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return true;
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}
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real_t distance_to(const Vector2& p_point) const;
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bool intersects_transformed(const Transform2D& p_xform, const Rect2& p_rect) const;
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bool intersects_segment(const Point2& p_from, const Point2& p_to, Point2* r_pos=NULL, Point2* r_normal=NULL) const;
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inline bool encloses(const Rect2& p_rect) const {
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return (p_rect.pos.x>=pos.x) && (p_rect.pos.y>=pos.y) &&
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((p_rect.pos.x+p_rect.size.x)<(pos.x+size.x)) &&
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((p_rect.pos.y+p_rect.size.y)<(pos.y+size.y));
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}
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inline bool has_no_area() const {
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return (size.x<=0 || size.y<=0);
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}
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Rect2 clip(const Rect2& p_rect) const;
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Rect2 merge(const Rect2& p_rect) const;
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inline bool has_point(const Point2& p_point) const {
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if (p_point.x < pos.x)
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return false;
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if (p_point.y < pos.y)
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return false;
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if (p_point.x >= (pos.x+size.x) )
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return false;
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if (p_point.y >= (pos.y+size.y) )
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return false;
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return true;
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}
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inline bool no_area() const { return (size.width<=0 || size.height<=0 ); }
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inline bool operator==(const Rect2& p_rect) const { return pos==p_rect.pos && size==p_rect.size; }
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inline bool operator!=(const Rect2& p_rect) const { return pos!=p_rect.pos || size!=p_rect.size; }
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inline Rect2 grow(real_t p_by) const {
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Rect2 g=*this;
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g.pos.x-=p_by;
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g.pos.y-=p_by;
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g.size.width+=p_by*2;
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g.size.height+=p_by*2;
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return g;
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}
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inline Rect2 expand(const Vector2& p_vector) const {
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Rect2 r = *this;
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r.expand_to(p_vector);
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return r;
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}
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inline void expand_to(const Vector2& p_vector) { //in place function for speed
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Vector2 begin=pos;
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Vector2 end=pos+size;
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if (p_vector.x<begin.x)
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begin.x=p_vector.x;
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if (p_vector.y<begin.y)
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begin.y=p_vector.y;
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if (p_vector.x>end.x)
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end.x=p_vector.x;
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if (p_vector.y>end.y)
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end.y=p_vector.y;
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pos=begin;
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size=end-begin;
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}
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operator String() const;
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inline Rect2() {}
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inline Rect2( real_t p_x, real_t p_y, real_t p_width, real_t p_height) { pos=Point2(p_x,p_y); size=Size2( p_width, p_height ); }
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inline Rect2( const Point2& p_pos, const Size2& p_size ) { pos=p_pos; size=p_size; }
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};
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}
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#endif // RECT2_H
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