abs

🎨 3D 预览 — 绝对值对称

@StartRule
Lot --> Wave(10)

Wave(n) -->
  case n == 0 : NIL
  else        : primitiveCube(1, abs(sin(n * 0.5)) * 3 + 0.5, 1)
                  t(1.2, 0, 0)
                  Wave(n - 1)