===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,252 @@
-/****
+/**** 
+* Classes
+****/ 
+var Block = Container.expand(function (blockType) {
+	var self = Container.call(this);
+	self.blockType = blockType;
+	self.gridX = 0;
+	self.gridY = 0;
+	var blockGraphics = self.attachAsset(blockType, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Add a subtle border effect
+	blockGraphics.alpha = 0.9;
+	self.setGridPosition = function (gridX, gridY) {
+		self.gridX = gridX;
+		self.gridY = gridY;
+		self.x = gridX * GRID_SIZE + GRID_SIZE / 2 + GRID_OFFSET_X;
+		self.y = gridY * GRID_SIZE + GRID_SIZE / 2 + GRID_OFFSET_Y;
+	};
+	return self;
+});
+var GridCell = Container.expand(function () {
+	var self = Container.call(this);
+	var cellGraphics = self.attachAsset('gridCell', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0.1
+	});
+	self.gridX = 0;
+	self.gridY = 0;
+	self.isEmpty = true;
+	self.setGridPosition = function (gridX, gridY) {
+		self.gridX = gridX;
+		self.gridY = gridY;
+		self.x = gridX * GRID_SIZE + GRID_SIZE / 2 + GRID_OFFSET_X;
+		self.y = gridY * GRID_SIZE + GRID_SIZE / 2 + GRID_OFFSET_Y;
+	};
+	self.highlight = function () {
+		cellGraphics.alpha = 0.3;
+	};
+	self.unhighlight = function () {
+		cellGraphics.alpha = 0.1;
+	};
+	return self;
+});
+var ToolbarButton = Container.expand(function (blockType) {
+	var self = Container.call(this);
+	self.blockType = blockType;
+	self.isSelected = false;
+	var bgGraphics = self.attachAsset('toolbarBg', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0.8
+	});
+	var blockGraphics = self.attachAsset(blockType, {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		scaleX: 0.8,
+		scaleY: 0.8
+	});
+	var selectedBorder = self.attachAsset('selectedBorder', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0
+	});
+	self.setSelected = function (selected) {
+		self.isSelected = selected;
+		selectedBorder.alpha = selected ? 0.8 : 0;
+		bgGraphics.alpha = selected ? 1.0 : 0.8;
+	};
+	self.down = function (x, y, obj) {
+		selectedBlockType = self.blockType;
+		updateToolbarSelection();
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+var GRID_SIZE = 80;
+var GRID_WIDTH = 20;
+var GRID_HEIGHT = 20;
+var GRID_OFFSET_X = (2048 - GRID_WIDTH * GRID_SIZE) / 2;
+var GRID_OFFSET_Y = 200;
+var selectedBlockType = 'dirt';
+var blockTypes = ['dirt', 'stone', 'wood', 'grass'];
+var inventory = {
+	dirt: 50,
+	stone: 30,
+	wood: 25,
+	grass: 20
+};
+var grid = [];
+var placedBlocks = [];
+var toolbarButtons = [];
+var pressTimer = null;
+var isLongPress = false;
+var pressStartTime = 0;
+// Initialize grid
+for (var x = 0; x < GRID_WIDTH; x++) {
+	grid[x] = [];
+	for (var y = 0; y < GRID_HEIGHT; y++) {
+		grid[x][y] = null;
+		var gridCell = new GridCell();
+		gridCell.setGridPosition(x, y);
+		game.addChild(gridCell);
+	}
+}
+// Create toolbar
+var toolbarY = 2732 - 120;
+var toolbarStartX = (2048 - blockTypes.length * 120) / 2;
+for (var i = 0; i < blockTypes.length; i++) {
+	var button = new ToolbarButton(blockTypes[i]);
+	button.x = toolbarStartX + i * 120 + 60;
+	button.y = toolbarY;
+	toolbarButtons.push(button);
+	LK.gui.addChild(button);
+}
+// Create inventory display
+var inventoryTexts = {};
+for (var i = 0; i < blockTypes.length; i++) {
+	var blockType = blockTypes[i];
+	var inventoryText = new Text2(inventory[blockType].toString(), {
+		size: 24,
+		fill: 0xFFFFFF
+	});
+	inventoryText.anchor.set(0.5, 0);
+	inventoryText.x = toolbarStartX + i * 120 + 60;
+	inventoryText.y = toolbarY + 60;
+	inventoryTexts[blockType] = inventoryText;
+	LK.gui.addChild(inventoryText);
+}
+function updateToolbarSelection() {
+	for (var i = 0; i < toolbarButtons.length; i++) {
+		toolbarButtons[i].setSelected(toolbarButtons[i].blockType === selectedBlockType);
+	}
+}
+function updateInventoryDisplay() {
+	for (var blockType in inventoryTexts) {
+		inventoryTexts[blockType].setText(inventory[blockType].toString());
+	}
+}
+function getGridPosition(worldX, worldY) {
+	var gridX = Math.floor((worldX - GRID_OFFSET_X) / GRID_SIZE);
+	var gridY = Math.floor((worldY - GRID_OFFSET_Y) / GRID_SIZE);
+	return {
+		x: gridX,
+		y: gridY
+	};
+}
+function isValidGridPosition(gridX, gridY) {
+	return gridX >= 0 && gridX < GRID_WIDTH && gridY >= 0 && gridY < GRID_HEIGHT;
+}
+function placeBlock(gridX, gridY) {
+	if (!isValidGridPosition(gridX, gridY)) return false;
+	if (grid[gridX][gridY] !== null) return false;
+	if (inventory[selectedBlockType] <= 0) return false;
+	var block = new Block(selectedBlockType);
+	block.setGridPosition(gridX, gridY);
+	game.addChild(block);
+	grid[gridX][gridY] = block;
+	placedBlocks.push(block);
+	inventory[selectedBlockType]--;
+	updateInventoryDisplay();
+	LK.getSound('place').play();
+	return true;
+}
+function removeBlock(gridX, gridY) {
+	if (!isValidGridPosition(gridX, gridY)) return false;
+	if (grid[gridX][gridY] === null) return false;
+	var block = grid[gridX][gridY];
+	var blockType = block.blockType;
+	// Remove from placedBlocks array
+	for (var i = placedBlocks.length - 1; i >= 0; i--) {
+		if (placedBlocks[i] === block) {
+			placedBlocks.splice(i, 1);
+			break;
+		}
+	}
+	block.destroy();
+	grid[gridX][gridY] = null;
+	inventory[blockType]++;
+	updateInventoryDisplay();
+	LK.getSound('remove').play();
+	return true;
+}
+// Initialize toolbar selection
+updateToolbarSelection();
+updateInventoryDisplay();
+game.down = function (x, y, obj) {
+	pressStartTime = Date.now();
+	isLongPress = false;
+	pressTimer = LK.setTimeout(function () {
+		isLongPress = true;
+		// Handle long press - remove block
+		var gridPos = getGridPosition(x, y);
+		if (isValidGridPosition(gridPos.x, gridPos.y)) {
+			removeBlock(gridPos.x, gridPos.y);
+		}
+	}, 500);
+};
+game.up = function (x, y, obj) {
+	if (pressTimer) {
+		LK.clearTimeout(pressTimer);
+		pressTimer = null;
+	}
+	if (!isLongPress) {
+		// Handle short press - place block
+		var gridPos = getGridPosition(x, y);
+		if (isValidGridPosition(gridPos.x, gridPos.y)) {
+			placeBlock(gridPos.x, gridPos.y);
+		}
+	}
+};
+// Add some starting blocks to demonstrate the game
+LK.setTimeout(function () {
+	// Place a few example blocks
+	placeBlock(10, 15);
+	placeBlock(11, 15);
+	placeBlock(12, 15);
+	selectedBlockType = 'stone';
+	updateToolbarSelection();
+	placeBlock(10, 14);
+	placeBlock(11, 14);
+	placeBlock(12, 14);
+	selectedBlockType = 'wood';
+	updateToolbarSelection();
+	placeBlock(11, 13);
+	selectedBlockType = 'dirt';
+	updateToolbarSelection();
+}, 500);
+game.update = function () {
+	// Replenish inventory slowly over time
+	if (LK.ticks % 600 === 0) {
+		// Every 10 seconds
+		for (var blockType in inventory) {
+			if (inventory[blockType] < 50) {
+				inventory[blockType]++;
+			}
+		}
+		updateInventoryDisplay();
+	}
+};
\ No newline at end of file