primal-jungle-2630

readme.md

primal-jungle-2630

Created with <3 with dartpad.dev.

main.dart

void main() {
  const a = Vec2(horizontalDimension: 2, verticalDimension: 3);
  const b = Vec2(horizontalDimension: -4, verticalDimension: -2);
  print(4.multiplyInVec2(a) - 2.multiplyInVec2(b));
}

final class Vec2 {
  final num horizontalDimension;
  final num verticalDimension;
  const Vec2(
      {required this.horizontalDimension, required this.verticalDimension,});

  Vec2 operator +(Vec2 other) => Vec2(
        horizontalDimension: horizontalDimension + other.horizontalDimension,
        verticalDimension: verticalDimension + other.verticalDimension,
      );
  Vec2 operator -(Vec2 other) =>
    this + (other.multipliedByScalar(-1));

  Vec2 multipliedByScalar(num scalar) => Vec2(
        horizontalDimension: scalar * horizontalDimension,
        verticalDimension: scalar * verticalDimension,
      );

  @override
  String toString() => '[$horizontalDimension,$verticalDimension]';
}

extension Vector2 on num {
  Vec2 multiplyInVec2(Vec2 vector) => Vec2(
        horizontalDimension: this * vector.horizontalDimension,
        verticalDimension: this * vector.verticalDimension,
      );
}