feat(Lensflare): add defaultChoice

Tresjs · Sep 2, 2023 · 4246245 · 4246245
1 parent b8ef198
commit 4246245
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/src/utils/RandUtils.ts b/src/utils/RandUtils.ts
@@ -71,6 +71,19 @@ export default class RandUtils {
     return array[Math.floor(this._getNext() * array.length)]
   }
 
+  /**
+   * Choose an element from an array or return defaultValue if array is empty.
+   * @param array The array to choose from
+   * @param defaultValue The value to return if the array is empty
+   * @returns An element from the array or defaultValue if the array is empty
+   */
+  defaultChoice<T>(array: T[], defaultValue: T): T {
+    if (!array.length) {
+      return defaultValue
+    }
+    return array[Math.floor(this._getNext() * array.length)]
+  }
+
   /**
    * Return n elements from an array.
    * @param array The array to sample