ref: c04f70e2bb4a02655bb8a6247a8f07f75ff431bd
dir: /libdraw/drawrepl.c/
#include "lib9.h" #include "draw.h" int drawreplxy(int min, int max, int x) { int sx; sx = (x-min)%(max-min); if(sx < 0) sx += max-min; return sx+min; } Point drawrepl(Rectangle r, Point p) { p.x = drawreplxy(r.min.x, r.max.x, p.x); p.y = drawreplxy(r.min.y, r.max.y, p.y); return p; }