计算反射和钝角

Question

给定两条共同原点，其旋转角度为度数，Lua计算反射和钝角的最佳方法是什么？

Answer 1

假设您希望反射角度与钝角成反映，并且不必担心钝角值的值为90或180度：

function obtuse_reflex(a, b)
  local diff = (a - b) % 180
  if diff < 90 then diff = 180 - diff end
  return diff, 360 - diff
end