part of 'generator.dart';

class Requirement {
  final int vxMin, vxMax, vyMin, vyMax;
  final DirectionSet smooth;

  Requirement(this.vxMin, this.vxMax, this.vyMin, this.vyMax, this.smooth) {
    assert(vxMin <= vxMax);
    assert(vyMin <= vyMax);
    assert(vxMax > 2);
    assert(vyMax > 2);
  }

  Requirement flip() {
    return Requirement(vxMin, vxMax, vyMin, vyMax, smooth.flip());
  }

  Requirement rotateLeft() {
    return Requirement(vyMin, vyMax, vxMin, vxMax, smooth.rotateLeft());
  }

  Requirement rotateRight() {
    return Requirement(vyMin, vyMax, vxMin, vxMax, smooth.rotateRight());
  }
}