implemented random word retrieval functionality

googletrendsgame/server/utils.js

@@ -1,26 +1,37 @@
 
-var words = [];
-
+var fs = require('fs');
+const WORD_FILE_PATH = '../word_selection/words.txt';
 
+//loads words from word file
+var words = [];
+var data = fs.readFileSync(WORD_FILE_PATH, 'utf8');
+var lines = data.split('\n');
+lines.forEach(function(element){
+  words.push(element);
+});
 
 module.exports=
     {
-        /**
-         * Returns a random word
-         * @returns {string}
-         */
-        getRandomWord : function()
-        {
-            return '';
-        },
-
         /**
          * returns a specific amount of words -- unique
-         * @param num
-         * @returns {Array}
+         * @param num the number of words
+         * @returns {Array} the random, unique words
          */
         getRandomWords : function(num)
         {
-            return [];
+          var rwords = [];
+            for(var i = 0; i < num; ++i){
+              var randindex = Math.round((Math.random() * (words.length - 1)));
+              var newword = words[randindex];
+              var uniq = true;
+              rwords.forEach(function(element){
+                if(newword === element){
+                  --i;
+                  uniq = false;
+                }
+              });
+              if(uniq)rwords.push(newword);
+            }
+            return rwords;
         }
-    };
+    };