a1k0n

#include <math.h>
#include <stdio.h>
#include <unistd.h>

// Each character encodes an angle of a plane we are checking
const char plane_angles[] = "O:85!fI,wfO8!yZfO8!f*hXK3&fO;:O;#hP;\"i[";
// and these encode an offset from the origin s.t. (x, y) dot (cos(a), sin(a)) < offset
const char plane_offsets[] = "<[\\]O=IKNAL;KNRbF8EbGEROQ@BSXXtG!#t3!^";

// this table encodes the offsets within the above tables of each polygon