export default class MathUtil {
  static add(a: number, b: number): number {
    return a + b;
  }

  static compare(a: number, b: number): number {
    return (
      (a < b) ? -1 :
        (a == b) ? 0 :
          1
    );
  }

  static floorMod(a: number, b: number): number {
    return ((a % b) + b) % b;
  }

  static rotate(array: any[], distance: number): void {
    while (distance-- > 0) {
      array.push(array.shift());
    }
  }

  static clamp(min: number, max: number, value: number): number {
    if (max < min) {
      throw new Error("max should not be less than min");
    }
    return Math.max(min, Math.min(max, value));
  }
}