# HG changeset patch
# User Oleksandr Gavenko <gavenkoa@gmail.com>
# Date 1411424590 -10800
# Node ID e5f1930f0f19dc6b9b93dc050b43dadf735091f6
# Parent  7e93fb8136a3e51717c5c3cf2f811d4d2d079004
Add check to board.putRandom.

diff -r 7e93fb8136a3 -r e5f1930f0f19 rule.js
--- a/rule.js	Tue Sep 23 01:17:55 2014 +0300
+++ b/rule.js	Tue Sep 23 01:23:10 2014 +0300
@@ -50,6 +50,8 @@
 }
 board.putRandom = function(brd) {
     var cnt = board.freeCnt(brd);
+    if (cnt === 0)
+        throw Error('You forget detect game over!');
     cnt = Math.floor(Math.random() * cnt)+1;
     for (var i = 0; i < 4 && cnt > 0; i++) {
         for (var j = 0; j < 4 && cnt > 0; j++) {