part of 'generator.dart';

int randomOrientation(math.Random random) {
  return random.nextInt(8);
}

Vault reorientVault(Vault o, int r) {
  assert(r >= 0 && r < 8);

  while (r >= 2) {
    o = o.rotateRight();
    r -= 2;
  }
  if (r == 1) {
    o = o.flip();
    r -= 1;
  }
  return o;
}

Requirement unReorientRequirement(Requirement o, int r) {
  assert(r >= 0 && r < 8);

  if (r % 2 == 1) {
    o = o.flip();
    r -= 1;
  }
  while (r >= 2) {
    o = o.rotateLeft();
    r -= 2;
  }
  return o;
}