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export default class Seed {  private seeder: () => number;
  constructor(seed: string) {    this.seeder = this.xmur3(seed);  }
  public random(min = 0, max = 1): number {    // Make sure the minimum and maximum values are correct    if (min > max) {      throw new Error("The minimum value must be below the maximum value");    }    if (min === max) {      throw new Error("The minimum value cannot equal the maximum value");    }
    return this.denormalize(this.sfc32(), min, max);  }
  public randomInt(min = 0, max = 1): number {    return Math.round(this.random(min, max));  }
  private denormalize(value: number, min: number, max: number): number {    return value * (max - min) + min;  }
  // https://github.com/bryc/code/blob/master/jshash/PRNGs.md  private xmur3(str: string): () => number {    let h = 1779033703 ^ str.length;
    for (let i = 0; i < str.length; i++) {      h = Math.imul(h ^ str.charCodeAt(i), 3432918353);      h = h << 13 | h >>> 19;    }
    return () => {      h = Math.imul(h ^ h >>> 16, 2246822507);      h = Math.imul(h ^ h >>> 13, 3266489909);      return (h ^= h >>> 16) >>> 0;    };  }
  // https://github.com/bryc/code/blob/master/jshash/PRNGs.md  private sfc32(): number {    let a = this.seeder();    let b = this.seeder();    let c = this.seeder();    let d = this.seeder();
    a >>>= 0;    b >>>= 0;    c >>>= 0;    d >>>= 0;    let t = (a + b) | 0;    a = b ^ (b >>> 9);    b = (c + (c << 3)) | 0;    c = (c << 21) | (c >>> 11);    d = (d + 1) | 0;    t = (t + d) | 0;    c = (c + t) | 0;    return (t >>> 0) / 4294967296;  }}