gistfile1.lua

function getCost(A,B)
  return (A-B).magnitude();
end

while true
  local point = getPosition();
  local points = {
    point+vec2i( 1, 0),
    point+vec2i( 0, 1),
    point+vec2i( 1, 1),
    point+vec2i(-1, 0),
    point+vec2i( 0,-1),
    point+vec2i(-1,-1),
    point+vec2i( 1,-1),
    point+vec2i(-1, 1)
  };
  local a={};
  for i=1,#points do
    a[getCost(points[i],point)] = points[i];
  end
  points = talbe.sort(points);
  moveToPoint(points[1]);
end