Fixes issue in boards with less than 20 tiles

Default mine value is not 20, but a math function.

Signed-off-by: Aiden Woodruff <aiden.woodruff@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/sweeper.js b/sweeper.js
index 04a6623..5915b9e 100644
--- a/sweeper.js
+++ b/sweeper.js
@@ -156,8 +156,8 @@ if (!dimensions["width"] || dimensions["width"] < 1) {
 if (!dimensions["height"] || dimensions["height"] < 1) {
     dimensions["height"] = 10;
 }
-if (!dimensions["mines"] || dimensions["mines"] > dimensions["width"] * dimensions["height"]) {
-    dimensions["mines"] = 20;
+if (!dimensions["mines"] || parseInt(dimensions["mines"], 10) > parseInt(dimensions["width"], 10) * parseInt(dimensions["height"], 10)) {
+    dimensions["mines"] = Math.floor(Math.sqrt(dimensions["width"] * dimensions["height"])) * 2;
 }
 
 class Coordinates {