===================================================================
--- original.js
+++ change.js
@@ -7,15 +7,8 @@
 	var blockGraphics = self.createAsset('block', 'Building block', 0.5, 0.5);
 	self.move = function () {};
 	self.update = function () {};
 });
-// GenericAsset class for creating generic game assets
-var GenericAsset = Container.expand(function () {
-	var self = Container.call(this);
-	var genericAssetGraphics = self.createAsset('genericAsset', 'Generic game asset', 0.5, 0.5);
-	self.move = function () {};
-	self.update = function () {};
-});
 // BlackBlock class for creating black blocks
 var BlackBlock = Container.expand(function () {
 	var self = Container.call(this);
 	var blackBlockGraphics = self.createAsset('blackBlock', 'Black block', 0.5, 0.5);
@@ -77,5 +70,39 @@
 	// Update all black blocks
 	for (var j = 0; j < blackBlocks.length; j++) {
 		blackBlocks[j].update();
 	}
-});
\ No newline at end of file
+}); // Save game state
+function saveGameState() {
+	var gameState = {
+		blocks: blocks.map(function (block) {
+			return {
+				x: block.x,
+				y: block.y
+			};
+		}),
+		blackBlocks: blackBlocks.map(function (blackBlock) {
+			return {
+				x: blackBlock.x,
+				y: blackBlock.y
+			};
+		})
+	};
+	localStorage.setItem('gameState', JSON.stringify(gameState));
+}
+
+// Load game state
+function loadGameState() {
+	var savedState = localStorage.getItem('gameState');
+	if (savedState) {
+		var gameState = JSON.parse(savedState);
+		gameState.blocks.forEach(function (blockData) {
+			createBlock(blockData.x, blockData.y);
+		});
+		gameState.blackBlocks.forEach(function (blackBlockData) {
+			createBlackBlock(blackBlockData.x, blackBlockData.y);
+		});
+	}
+}
+
+// Call load game state when game starts
+loadGameState();
\ No newline at end of file