diff options
Diffstat (limited to 'include/godot_cpp/core/Rect2.cpp')
| -rw-r--r-- | include/godot_cpp/core/Rect2.cpp | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/include/godot_cpp/core/Rect2.cpp b/include/godot_cpp/core/Rect2.cpp deleted file mode 100644 index 6d13cff..0000000 --- a/include/godot_cpp/core/Rect2.cpp +++ /dev/null @@ -1,303 +0,0 @@ -#include "Rect2.hpp" - -#include "Vector2.hpp" - -#include "String.hpp" - -#include <cmath> - -#include "Transform2D.hpp" - -namespace godot { - -#ifndef MAX -#define MAX(a, b) (a > b ? a : b) -#endif - -#ifndef MIN -#define MIN(a, b) (a < b ? a : b) -#endif - - -real_t Rect2::distance_to(const Vector2& p_point) const { - - real_t dist = 1e20; - - if (p_point.x < pos.x) { - dist=MIN(dist,pos.x-p_point.x); - } - if (p_point.y < pos.y) { - dist=MIN(dist,pos.y-p_point.y); - } - if (p_point.x >= (pos.x+size.x) ) { - dist=MIN(p_point.x-(pos.x+size.x),dist); - } - if (p_point.y >= (pos.y+size.y) ) { - dist=MIN(p_point.y-(pos.y+size.y),dist); - } - - if (dist==1e20) - return 0; - else - return dist; - } - -Rect2 Rect2::clip(const Rect2& p_rect) const { /// return a clipped rect - - Rect2 new_rect=p_rect; - - if (!intersects( new_rect )) - return Rect2(); - - new_rect.pos.x = MAX( p_rect.pos.x , pos.x ); - new_rect.pos.y = MAX( p_rect.pos.y , pos.y ); - - Point2 p_rect_end=p_rect.pos+p_rect.size; - Point2 end=pos+size; - - new_rect.size.x=MIN(p_rect_end.x,end.x) - new_rect.pos.x; - new_rect.size.y=MIN(p_rect_end.y,end.y) - new_rect.pos.y; - - return new_rect; -} - -Rect2 Rect2::merge(const Rect2& p_rect) const { ///< return a merged rect - - Rect2 new_rect; - - new_rect.pos.x=MIN( p_rect.pos.x , pos.x ); - new_rect.pos.y=MIN( p_rect.pos.y , pos.y ); - - - new_rect.size.x = MAX( p_rect.pos.x+p_rect.size.x , pos.x+size.x ); - new_rect.size.y = MAX( p_rect.pos.y+p_rect.size.y , pos.y+size.y ); - - new_rect.size = new_rect.size - new_rect.pos; //make relative again - - return new_rect; -} - - - -Rect2::operator String() const -{ - return String(pos)+", "+String(size); -} - - -bool Rect2::intersects_segment(const Point2& p_from, const Point2& p_to, Point2* r_pos,Point2* r_normal) const { - - real_t min=0,max=1; - int axis=0; - real_t sign=0; - - for(int i=0;i<2;i++) { - real_t seg_from=p_from[i]; - real_t seg_to=p_to[i]; - real_t box_begin=pos[i]; - real_t box_end=box_begin+size[i]; - real_t cmin,cmax; - real_t csign; - - if (seg_from < seg_to) { - - if (seg_from > box_end || seg_to < box_begin) - return false; - real_t length=seg_to-seg_from; - cmin = (seg_from < box_begin)?((box_begin - seg_from)/length):0; - cmax = (seg_to > box_end)?((box_end - seg_from)/length):1; - csign=-1.0; - - } else { - - if (seg_to > box_end || seg_from < box_begin) - return false; - real_t length=seg_to-seg_from; - cmin = (seg_from > box_end)?(box_end - seg_from)/length:0; - cmax = (seg_to < box_begin)?(box_begin - seg_from)/length:1; - csign=1.0; - } - - if (cmin > min) { - min = cmin; - axis=i; - sign=csign; - } - if (cmax < max) - max = cmax; - if (max < min) - return false; - } - - - Vector2 rel=p_to-p_from; - - if (r_normal) { - Vector2 normal; - normal[axis]=sign; - *r_normal=normal; - } - - if (r_pos) - *r_pos=p_from+rel*min; - - return true; -} - - -bool Rect2::intersects_transformed(const Transform2D& p_xform, const Rect2& p_rect) const { - - //SAT intersection between local and transformed rect2 - - Vector2 xf_points[4]={ - p_xform.xform(p_rect.pos), - p_xform.xform(Vector2(p_rect.pos.x+p_rect.size.x,p_rect.pos.y)), - p_xform.xform(Vector2(p_rect.pos.x,p_rect.pos.y+p_rect.size.y)), - p_xform.xform(Vector2(p_rect.pos.x+p_rect.size.x,p_rect.pos.y+p_rect.size.y)), - }; - - real_t low_limit; - - //base rect2 first (faster) - - if (xf_points[0].y>pos.y) - goto next1; - if (xf_points[1].y>pos.y) - goto next1; - if (xf_points[2].y>pos.y) - goto next1; - if (xf_points[3].y>pos.y) - goto next1; - - return false; - - next1: - - low_limit=pos.y+size.y; - - if (xf_points[0].y<low_limit) - goto next2; - if (xf_points[1].y<low_limit) - goto next2; - if (xf_points[2].y<low_limit) - goto next2; - if (xf_points[3].y<low_limit) - goto next2; - - return false; - - next2: - - if (xf_points[0].x>pos.x) - goto next3; - if (xf_points[1].x>pos.x) - goto next3; - if (xf_points[2].x>pos.x) - goto next3; - if (xf_points[3].x>pos.x) - goto next3; - - return false; - - next3: - - low_limit=pos.x+size.x; - - if (xf_points[0].x<low_limit) - goto next4; - if (xf_points[1].x<low_limit) - goto next4; - if (xf_points[2].x<low_limit) - goto next4; - if (xf_points[3].x<low_limit) - goto next4; - - return false; - - next4: - - Vector2 xf_points2[4]={ - pos, - Vector2(pos.x+size.x,pos.y), - Vector2(pos.x,pos.y+size.y), - Vector2(pos.x+size.x,pos.y+size.y), - }; - - real_t maxa=p_xform.elements[0].dot(xf_points2[0]); - real_t mina=maxa; - - real_t dp = p_xform.elements[0].dot(xf_points2[1]); - maxa=MAX(dp,maxa); - mina=MIN(dp,mina); - - dp = p_xform.elements[0].dot(xf_points2[2]); - maxa=MAX(dp,maxa); - mina=MIN(dp,mina); - - dp = p_xform.elements[0].dot(xf_points2[3]); - maxa=MAX(dp,maxa); - mina=MIN(dp,mina); - - real_t maxb=p_xform.elements[0].dot(xf_points[0]); - real_t minb=maxb; - - dp = p_xform.elements[0].dot(xf_points[1]); - maxb=MAX(dp,maxb); - minb=MIN(dp,minb); - - dp = p_xform.elements[0].dot(xf_points[2]); - maxb=MAX(dp,maxb); - minb=MIN(dp,minb); - - dp = p_xform.elements[0].dot(xf_points[3]); - maxb=MAX(dp,maxb); - minb=MIN(dp,minb); - - - if ( mina > maxb ) - return false; - if ( minb > maxa ) - return false; - - maxa=p_xform.elements[1].dot(xf_points2[0]); - mina=maxa; - - dp = p_xform.elements[1].dot(xf_points2[1]); - maxa=MAX(dp,maxa); - mina=MIN(dp,mina); - - dp = p_xform.elements[1].dot(xf_points2[2]); - maxa=MAX(dp,maxa); - mina=MIN(dp,mina); - - dp = p_xform.elements[1].dot(xf_points2[3]); - maxa=MAX(dp,maxa); - mina=MIN(dp,mina); - - maxb=p_xform.elements[1].dot(xf_points[0]); - minb=maxb; - - dp = p_xform.elements[1].dot(xf_points[1]); - maxb=MAX(dp,maxb); - minb=MIN(dp,minb); - - dp = p_xform.elements[1].dot(xf_points[2]); - maxb=MAX(dp,maxb); - minb=MIN(dp,minb); - - dp = p_xform.elements[1].dot(xf_points[3]); - maxb=MAX(dp,maxb); - minb=MIN(dp,minb); - - - if ( mina > maxb ) - return false; - if ( minb > maxa ) - return false; - - - return true; - -} - -} |