From 006b98dfd0ae1fbc34ef4c135e4ab07a7b82b152 Mon Sep 17 00:00:00 2001
From: lizhineng <lizhineng@gmail.com>
Date: Fri, 7 Jun 2013 23:30:20 +0800
Subject: optimized the expressions and fixed some bugs

---
 js/utility.js | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

(limited to 'js/utility.js')

diff --git a/js/utility.js b/js/utility.js
index ab67cd2..a59841f 100644
--- a/js/utility.js
+++ b/js/utility.js
@@ -1,3 +1,14 @@
-function range(min, max) {
-  return Math.floor(Math.random() * (max - min + 1)) + min;
-}
\ No newline at end of file
+/**
+ * Returns a random integer between min and max
+ *
+ * @param {Number} min
+ * @param {Number} max
+ * @return {Number}
+ */
+Math.rangeInt = function(min, max){
+	if (max == undefined) {
+		max = min;
+		min = 0;
+	}
+	return Math.floor(Math.random() * (max - min + 1)) + min;
+}
-- 
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