Fix random provider.

tom-wolfe · Mar 23, 2018 · 04010c6 · 04010c6
1 parent f6418bf
commit 04010c6
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Showing 3 changed files with 27 additions and 5 deletions.
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dice-typescript",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "description": "A TypeScript library for parsing dice rolling expressions, most commonly used in tabletop RPGs.",
   "main": "./dist/index.js",
   "scripts": {
@@ -36,6 +36,7 @@
   "homepage": "https://github.com/trwolfe13/dice#readme",
   "devDependencies": {
     "@types/jasmine": "^2.8.6",
+    "@types/random-js": "^1.0.30",
     "codacy-coverage": "^2.0.2",
     "istanbul": "^0.4.5",
     "jasmine-core": "2.5.2",
@@ -46,5 +47,8 @@
     "rimraf": "^2.6.1",
     "tslint": "^5.4.3",
     "typescript": "^2.4.1"
+  },
+  "dependencies": {
+    "random-js": "^1.0.8"
   }
 }
diff --git a/src/default-random-provider.ts b/src/default-random-provider.ts
@@ -1,9 +1,15 @@
 import { RandomProvider } from "./random-provider";
+import * as Random from "random-js";
 
 export class DefaultRandomProvider implements RandomProvider {
-    constructor() { }
+
+    private random: Random;
+
+    constructor() {
+        this.random = new Random(Random.engines.mt19937().autoSeed());
+    }
 
     numberBetween(min: number, max: number) {
-          return Math.floor(Math.random() * (max - min + 1)) + min;
+        return this.random.integer(min, max);
     }
 }