Saving/loading functionality

Also removed an unused variable

index.html

@@ -285,7 +285,6 @@
 			var gameBoardHeight    = 9;
 			var score      		   = 0;
 			var firstClick 		   = true;
-			var currentlyIterating = false;
 			var mineChance		   = 0.2;
 			var clickholdMs		   = 200;
 			var timeout; //hold timer
@@ -328,6 +327,37 @@
 					return row;
 				}
 
+				function saveGame() {
+					if (typeof(Storage) == "undefined") {
+					    return;
+					}
+
+					//variables
+					localStorage.setItem("score", 	   score);
+					localStorage.setItem("mineChance", mineChance);
+					localStorage.setItem("firstClick", firstClick);
+
+					//game board
+					localStorage.setItem("gameBoard", $('#game').html());
+				}
+
+				function loadGame() {
+					//check if storage available and if saved game exists
+					if (typeof(Storage) == "undefined" || localStorage.getItem("gameBoard") == null) {
+						drawGameBoard();
+					    return;
+					}
+
+					//variables
+					score 	   = parseInt(localStorage.getItem("score"));
+					mineChance = parseFloat(localStorage.getItem("mineChance"));
+					firstClick = (localStorage.getItem("firstClick") == "true");
+
+					//game board
+					$('#game').html(localStorage.getItem("gameBoard"));
+					$('#setup').hide();
+				}
+
 				$.fn.check = function() {
 					//unclicked tiles
 					if ($(this).filter('li:not(.revealed):not(.flagged)').length > 0) {
@@ -748,6 +778,7 @@
 
 					updateScore();
 					updateMinesLeft();
+					saveGame();
 				});
 
 				$(window).resize(function() {
@@ -757,7 +788,7 @@
 				resizeToWindow();
 
 				//instantiate the game
-				drawGameBoard();
+				loadGame(); //loadGame will draw the game board if no saved game is found
 
 				$('#gameOver').hide();
 				$('button.cancel').hide();