Refactor

src/utils/random.ts

@@ -0,0 +1,20 @@
+export abstract class Random {
+  // https://stackoverflow.com/questions/521295/seeding-the-random-number-generator-in-javascript, Mulberry32
+
+  private static _seed = 42;
+
+  public static set seed(value: number) {
+    Random._seed = value;
+  }
+
+  public static getRandom(): number {
+    let t = (Random._seed += 0x6d2b79f5);
+    t = Math.imul(t ^ (t >>> 15), t | 1);
+    t ^= t + Math.imul(t ^ (t >>> 7), t | 61);
+    return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
+  }
+
+  public static randomBetween(from: number, to: number): number {
+    return from + Random.getRandom() * (to - from);
+  }
+}