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Diffstat (limited to 'include/core/Rect2.hpp')
-rw-r--r-- | include/core/Rect2.hpp | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/include/core/Rect2.hpp b/include/core/Rect2.hpp new file mode 100644 index 0000000..849fa68 --- /dev/null +++ b/include/core/Rect2.hpp @@ -0,0 +1,143 @@ +#ifndef RECT2_H +#define RECT2_H + +#if defined(_WIN32) +# ifdef _GD_CPP_CORE_API_IMPL +# define GD_CPP_CORE_API __declspec(dllexport) +# else +# define GD_CPP_CORE_API __declspec(dllimport) +# endif +#else +# define GD_CPP_CORE_API +#endif + +#include "Vector2.hpp" + +#include <cmath> + +#include <cstdlib> + +namespace godot { + +class String; + +typedef Vector2 Size2; +typedef Vector2 Point2; + +class Transform2D; + +struct GD_CPP_CORE_API Rect2 { + + Point2 pos; + Size2 size; + + inline const Vector2& get_pos() const { return pos; } + inline void set_pos(const Vector2& p_pos) { pos=p_pos; } + inline const Vector2& get_size() const { return size; } + inline void set_size(const Vector2& p_size) { size=p_size; } + + inline real_t get_area() const { return size.width*size.height; } + + inline bool intersects(const Rect2& p_rect) const { + if ( pos.x >= (p_rect.pos.x + p_rect.size.width) ) + return false; + if ( (pos.x+size.width) <= p_rect.pos.x ) + return false; + if ( pos.y >= (p_rect.pos.y + p_rect.size.height) ) + return false; + if ( (pos.y+size.height) <= p_rect.pos.y ) + return false; + + return true; + } + + real_t distance_to(const Vector2& p_point) const; + + bool intersects_transformed(const Transform2D& p_xform, const Rect2& p_rect) const; + + bool intersects_segment(const Point2& p_from, const Point2& p_to, Point2* r_pos=NULL, Point2* r_normal=NULL) const; + + inline bool encloses(const Rect2& p_rect) const { + + return (p_rect.pos.x>=pos.x) && (p_rect.pos.y>=pos.y) && + ((p_rect.pos.x+p_rect.size.x)<(pos.x+size.x)) && + ((p_rect.pos.y+p_rect.size.y)<(pos.y+size.y)); + + } + + inline bool has_no_area() const { + + return (size.x<=0 || size.y<=0); + + } + Rect2 clip(const Rect2& p_rect) const; + + Rect2 merge(const Rect2& p_rect) const; + + inline bool has_point(const Point2& p_point) const { + if (p_point.x < pos.x) + return false; + if (p_point.y < pos.y) + return false; + + if (p_point.x >= (pos.x+size.x) ) + return false; + if (p_point.y >= (pos.y+size.y) ) + return false; + + return true; + } + + inline bool no_area() const { return (size.width<=0 || size.height<=0 ); } + + inline bool operator==(const Rect2& p_rect) const { return pos==p_rect.pos && size==p_rect.size; } + inline bool operator!=(const Rect2& p_rect) const { return pos!=p_rect.pos || size!=p_rect.size; } + + inline Rect2 grow(real_t p_by) const { + + Rect2 g=*this; + g.pos.x-=p_by; + g.pos.y-=p_by; + g.size.width+=p_by*2; + g.size.height+=p_by*2; + return g; + } + + inline Rect2 expand(const Vector2& p_vector) const { + + Rect2 r = *this; + r.expand_to(p_vector); + return r; + } + + inline void expand_to(const Vector2& p_vector) { //in place function for speed + + Vector2 begin=pos; + Vector2 end=pos+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; + + pos=begin; + size=end-begin; + } + + + operator String() const; + + inline Rect2() {} + 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 ); } + inline Rect2( const Point2& p_pos, const Size2& p_size ) { pos=p_pos; size=p_size; } +}; + + +} + +#endif // RECT2_H |