/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	worldData: "undefined",
	playerPosition: {
		x: 1024,
		y: 1600
	},
	inventory: {}
});

/**** 
* Classes
****/ 
var Block = Container.expand(function (type, size) {
	var self = Container.call(this);
	self.type = type;
	self.size = size || 64;
	var graphics = self.attachAsset(type, {
		anchorX: 0.5,
		anchorY: 0.5,
		width: self.size,
		height: self.size
	});
	self.down = function (x, y, obj) {
		if (currentTool === 'break') {
			self.breakBlock();
		}
	};
	self.breakBlock = function () {
		// Add to inventory
		inventory[self.type] = (inventory[self.type] || 0) + 1;
		updateInventoryDisplay();
		// Play break sound
		LK.getSound('break').play();
		// Remove from world
		var gridX = Math.floor(self.x / blockSize);
		var gridY = Math.floor(self.y / blockSize);
		if (worldData[gridY] && worldData[gridY][gridX] !== undefined && worldData[gridY][gridX] !== null) {
			worldData[gridY][gridX] = null;
			self.destroy();
		}
		// Save world data
		// Convert worldData to string before storing
		storage.worldData = JSON.stringify(worldData);
	};
	return self;
});
var Button = Container.expand(function (text, callback) {
	var self = Container.call(this);
	var background = self.attachAsset('buttonBg', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.buttonText = new Text2(text, {
		size: 36,
		fill: 0xFFFFFF
	});
	self.buttonText.anchor.set(0.5, 0.5);
	self.addChild(self.buttonText);
	self.callback = callback;
	self.down = function (x, y, obj) {
		if (self.callback) {
			self.callback();
		}
	};
	return self;
});
var Character = Container.expand(function () {
	var self = Container.call(this);
	// Create character sprite
	var sprite = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1.0,
		width: 80,
		height: 100
	});
	// Character properties
	self.direction = 1; // 1 = right, -1 = left
	self.isMoving = false;
	self.speed = 4;
	// Animation properties
	self.frameTime = 0;
	self.frameRate = 8; // frames per second
	// Change direction method
	self.faceDirection = function (dir) {
		if (dir !== self.direction) {
			self.direction = dir;
			sprite.scale.x = self.direction;
		}
	};
	// Start/stop movement
	self.startMoving = function (dir) {
		self.isMoving = true;
		self.faceDirection(dir);
	};
	self.stopMoving = function () {
		self.isMoving = false;
	};
	// Update method - called every frame
	self.update = function () {
		// Store last position for collision detection
		var lastY = self.y;
		var lastX = self.x;
		// Handle movement
		if (self.isMoving) {
			self.x += self.speed * self.direction;
			// Update animation
			self.frameTime += 1 / 60;
			if (self.frameTime >= 1 / self.frameRate) {
				self.frameTime = 0;
				// We would change animation frame here if we had sprite frames
			}
		}
		// Keep character in bounds
		if (self.x < 50) self.x = 50;
		if (self.x > 2000) self.x = 2000;
		// Apply gravity and check for ground collision
		var gridX = Math.floor(self.x / blockSize);
		var gridY = Math.floor((self.y + 10) / blockSize);
		// Check if there's ground beneath the character
		var onGround = false;
		// Check multiple positions to detect standing on platforms
		for (var checkX = gridX - 1; checkX <= gridX + 1; checkX++) {
			// Check directly below the character
			if (checkX >= 0 && gridY >= 0 && gridY < worldData.length && checkX < (worldData[gridY] ? worldData[gridY].length : 0) && worldData[gridY] && worldData[gridY][checkX] && worldData[gridY][checkX] !== 'water') {
				// Distance from character center to the block
				var distX = Math.abs(self.x - (checkX * blockSize + blockSize / 2));
				// If character is close enough horizontally to be standing on the block
				if (distX < blockSize * 0.8) {
					// Position character on top of the block
					self.y = gridY * blockSize - 10;
					onGround = true;
					break;
				}
			}
		}
		if (!onGround) {
			// Apply gravity if no ground below
			self.y += gravity;
		}
		// Check if we just landed on a platform
		if (lastY < self.y && self.y - lastY < gravity * 1.5) {
			// We just landed, stop any vertical momentum
			self.y = Math.floor(self.y / blockSize) * blockSize - 10;
		}
		// Check for horizontal collisions
		if (lastX !== self.x) {
			var checkGridY = Math.floor((self.y - 50) / blockSize); // Check at character's mid height
			var newGridX = Math.floor(self.x / blockSize);
			// Check if there's a block at character's new position
			if (checkGridY >= 0 && checkGridY < worldData.length && newGridX >= 0 && newGridX < worldData[checkGridY].length && worldData[checkGridY][newGridX]) {
				// Collision detected, revert to previous position
				self.x = lastX;
				self.isMoving = false;
			}
		}
	};
	// Interactive events
	self.down = function (x, y, obj) {
		// Handle touch down on character
		self.startDrag();
		// Convert to world container's coordinate system for proper positioning
		var worldX = obj.parent.toGlobal(obj.position).x;
		var worldY = obj.parent.toGlobal(obj.position).y;
		// Determine initial direction based on touch position
		if (x > self.width / 2) {
			self.faceDirection(1); // Face right
		} else {
			self.faceDirection(-1); // Face left
		}
	};
	// Add touch controls for character
	self.startDrag = function () {
		self.isDragging = true;
	};
	self.stopDrag = function () {
		self.isDragging = false;
		self.isMoving = false;
	};
	// Add jump functionality
	self.jump = function () {
		// Find where the player is standing
		var gridX = Math.floor(self.x / blockSize);
		var gridY = Math.floor((self.y + 10) / blockSize);
		// Check if character is on ground
		var onGround = false;
		for (var checkX = gridX - 1; checkX <= gridX + 1; checkX++) {
			if (checkX >= 0 && gridY >= 0 && gridY < worldData.length && checkX < (worldData[gridY] ? worldData[gridY].length : 0) && worldData[gridY] && worldData[gridY][checkX] && worldData[gridY][checkX] !== 'water') {
				var distX = Math.abs(self.x - (checkX * blockSize + blockSize / 2));
				if (distX < blockSize * 0.8) {
					onGround = true;
					break;
				}
			}
		}
		if (onGround) {
			// Apply upward force when jumping
			self.y -= 15;
		}
	};
	self.drag = function (x, y) {
		if (self.isDragging) {
			// Convert global coordinates to character's local frame
			var localX = x - game.toLocal(self.parent.toGlobal(self.position)).x + self.x;
			// Calculate difference for movement threshold
			var diffX = localX - self.x;
			// Determine direction based on current position and touch position
			if (diffX > 10) {
				self.faceDirection(1);
				self.isMoving = true;
			} else if (diffX < -10) {
				self.faceDirection(-1);
				self.isMoving = true;
			} else {
				self.isMoving = false;
			}
		}
	};
	return self;
});
var ControlButton = Container.expand(function (text, callback, width, height) {
	var self = Container.call(this);
	width = width || 150;
	height = height || 150;
	// Create button background
	var background = self.attachAsset('buttonBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: width,
		height: height
	});
	// Create button text
	self.buttonText = new Text2(text, {
		size: 48,
		fill: 0xFFFFFF
	});
	self.buttonText.anchor.set(0.5, 0.5);
	self.addChild(self.buttonText);
	// Store callback function
	self.callback = callback;
	// Add control type to identify button function
	self.controlType = '';
	if (text === '←') self.controlType = 'left';else if (text === '→') self.controlType = 'right';else if (text === '↑') self.controlType = 'jump';else if (text === '■') self.controlType = 'stop';
	// Button interaction
	self.down = function (x, y, obj) {
		if (self.callback) {
			background.alpha = 0.7;
			self.callback();
			// Set control state for continuous button press
			if (self.controlType && controlState) {
				if (self.controlType === 'left') {
					controlState.left = true;
					controlState.right = false;
				} else if (self.controlType === 'right') {
					controlState.right = true;
					controlState.left = false;
				} else if (self.controlType === 'jump') {
					controlState.jump = true;
				} else if (self.controlType === 'stop') {
					controlState.left = false;
					controlState.right = false;
				}
			}
		}
	};
	self.up = function (x, y, obj) {
		background.alpha = 1.0;
		// Clear control state when button is released
		if (self.controlType && controlState) {
			if (self.controlType === 'left') {
				controlState.left = false;
			} else if (self.controlType === 'right') {
				controlState.right = false;
			} else if (self.controlType === 'jump') {
				controlState.jump = false;
			}
		}
	};
	return self;
});
var InventorySlot = Container.expand(function (index, type) {
	var self = Container.call(this);
	self.index = index;
	self.type = type;
	var background = self.attachAsset('inventorySlot', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	if (type) {
		var blockIcon = self.attachAsset(type, {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 60,
			height: 60
		});
	}
	self.countText = new Text2("0", {
		size: 24,
		fill: 0xFFFFFF
	});
	self.countText.anchor.set(1, 1);
	self.countText.x = 30;
	self.countText.y = 30;
	self.addChild(self.countText);
	self.updateCount = function (count) {
		self.countText.setText(count.toString());
	};
	self.down = function (x, y, obj) {
		selectInventorySlot(self.index);
	};
	return self;
});
var MainMenu = Container.expand(function () {
	var self = Container.call(this);
	// Create a semi-transparent background overlay
	var overlay = LK.getAsset('buttonBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: 2048,
		height: 2732,
		alpha: 0.7
	});
	overlay.tint = 0x000000;
	self.addChild(overlay);
	// Game title
	self.title = new Text2("Pixel Realms", {
		size: 120,
		fill: 0xFFFFFF
	});
	self.title.anchor.set(0.5, 0.5);
	self.title.x = 2048 / 2;
	self.title.y = 800;
	self.addChild(self.title);
	// Start game button
	self.startButton = new Button("Start Game", function () {
		self.hide();
		worldEnterMenu.show();
	});
	self.startButton.x = 2048 / 2;
	self.startButton.y = 1200;
	self.addChild(self.startButton);
	// Add animated elements
	self.show = function () {
		self.visible = true;
		// Reset positions for animation
		self.title.y = 600;
		self.title.alpha = 0;
		self.startButton.y = 1300;
		self.startButton.alpha = 0;
		// Animate title
		tween(self.title, {
			y: 800,
			alpha: 1
		}, {
			duration: 800,
			easing: tween.easeOutBack
		});
		// Animate button with slight delay
		tween(self.startButton, {
			y: 1200,
			alpha: 1
		}, {
			duration: 800,
			easing: tween.easeOutBack
		});
	};
	self.hide = function () {
		// Animate out
		tween(self.title, {
			y: 600,
			alpha: 0
		}, {
			duration: 500,
			easing: tween.easeInBack
		});
		tween(self.startButton, {
			y: 1300,
			alpha: 0
		}, {
			duration: 500,
			easing: tween.easeInBack,
			onFinish: function onFinish() {
				self.visible = false;
			}
		});
	};
	return self;
});
var Platform = Container.expand(function (width, height) {
	var self = Container.call(this);
	self.width = width || 5;
	self.height = height || 1;
	// Create platform blocks
	for (var x = 0; x < self.width; x++) {
		for (var y = 0; y < self.height; y++) {
			var block = new Block('stone', blockSize);
			block.x = x * blockSize + blockSize / 2;
			block.y = y * blockSize + blockSize / 2;
			self.addChild(block);
		}
	}
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1,
		width: 60,
		height: 120
	});
	// Movement properties
	self.speed = 5;
	self.velocity = {
		x: 0,
		y: 0
	};
	self.gravity = 0.5;
	self.jumping = false;
	self.grounded = false;
	self.move = function (direction) {
		if (direction === 'left') {
			self.velocity.x = -self.speed;
		} else if (direction === 'right') {
			self.velocity.x = self.speed;
		}
	};
	self.stopMove = function () {
		self.velocity.x = 0;
	};
	self.jump = function () {
		if (self.grounded) {
			self.velocity.y = -12;
			self.grounded = false;
			self.jumping = true;
		}
	};
	self.update = function () {
		// Apply gravity
		if (!self.grounded) {
			self.velocity.y += self.gravity;
		}
		// Update position
		self.x += self.velocity.x;
		self.y += self.velocity.y;
		// Check for ground collision
		var gridX = Math.floor(self.x / blockSize);
		var gridY = Math.floor((self.y + 10) / blockSize);
		// Simple collision check with the block below
		if (gridY >= 0 && gridY < worldData.length && gridX >= 0 && worldData[gridY] && gridX < worldData[gridY].length && worldData[gridY][gridX] && worldData[gridY][gridX] !== 'water') {
			if (self.velocity.y > 0) {
				self.y = gridY * blockSize - 10;
				self.velocity.y = 0;
				self.grounded = true;
				self.jumping = false;
			}
		} else {
			self.grounded = false;
		}
		// Update camera to follow player
		updateCamera();
		// Save player position periodically
		if (LK.ticks % 60 === 0) {
			storage.playerPosition = {
				x: self.x,
				y: self.y
			};
		}
	};
	return self;
});
var WorldEnterMenu = Container.expand(function () {
	var self = Container.call(this);
	// Create a semi-transparent background
	var overlay = LK.getAsset('buttonBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: 2048,
		height: 2732,
		alpha: 0.8
	});
	overlay.tint = 0x000022;
	self.addChild(overlay);
	// World title
	self.title = new Text2("Enter World", {
		size: 100,
		fill: 0xFFFFFF
	});
	self.title.anchor.set(0.5, 0.5);
	self.title.x = 2048 / 2;
	self.title.y = 600;
	self.addChild(self.title);
	// World description
	self.description = new Text2("Select your world to start building", {
		size: 48,
		fill: 0xCCCCCC
	});
	self.description.anchor.set(0.5, 0.5);
	self.description.x = 2048 / 2;
	self.description.y = 720;
	self.addChild(self.description);
	// World selection buttons
	self.createWorldButton = new Button("Create New World", function () {
		// Generate new world
		worldData = generateWorld();
		// Reset player position
		player.x = 1024;
		player.y = 1600;
		storage.playerPosition = {
			x: player.x,
			y: player.y
		};
		// Reset inventory
		inventory = {
			"grass": 10,
			"stone": 10,
			"wood": 10,
			"water": 5
		};
		storage.inventory = inventory;
		// Start game
		self.hide();
		gameStarted = true;
		initializeWorld();
		setupUI();
	});
	self.createWorldButton.x = 2048 / 2;
	self.createWorldButton.y = 1000;
	self.addChild(self.createWorldButton);
	self.loadWorldButton = new Button("Continue World", function () {
		// Load existing world (already loaded from storage)
		self.hide();
		gameStarted = true;
		initializeWorld();
		setupUI();
	});
	self.loadWorldButton.x = 2048 / 2;
	self.loadWorldButton.y = 1150;
	self.addChild(self.loadWorldButton);
	self.backButton = new Button("Back to Menu", function () {
		self.hide();
		mainMenu.show();
	});
	self.backButton.x = 2048 / 2;
	self.backButton.y = 1400;
	self.addChild(self.backButton);
	// Show animation
	self.show = function () {
		self.visible = true;
		// Reset positions for animation
		self.title.y = 400;
		self.title.alpha = 0;
		self.description.y = 620;
		self.description.alpha = 0;
		self.createWorldButton.y = 1100;
		self.createWorldButton.alpha = 0;
		self.loadWorldButton.y = 1250;
		self.loadWorldButton.alpha = 0;
		self.backButton.y = 1500;
		self.backButton.alpha = 0;
		// Animate title
		tween(self.title, {
			y: 600,
			alpha: 1
		}, {
			duration: 600,
			easing: tween.easeOutBack
		});
		// Animate description
		tween(self.description, {
			y: 720,
			alpha: 1
		}, {
			duration: 600,
			delay: 100,
			easing: tween.easeOutBack
		});
		// Animate buttons
		tween(self.createWorldButton, {
			y: 1000,
			alpha: 1
		}, {
			duration: 600,
			delay: 200,
			easing: tween.easeOutBack
		});
		tween(self.loadWorldButton, {
			y: 1150,
			alpha: 1
		}, {
			duration: 600,
			delay: 300,
			easing: tween.easeOutBack
		});
		tween(self.backButton, {
			y: 1400,
			alpha: 1
		}, {
			duration: 600,
			delay: 400,
			easing: tween.easeOutBack
		});
	};
	// Hide animation
	self.hide = function () {
		// Animate out
		tween(self.title, {
			y: 400,
			alpha: 0
		}, {
			duration: 400,
			easing: tween.easeInBack
		});
		tween(self.description, {
			y: 620,
			alpha: 0
		}, {
			duration: 400,
			easing: tween.easeInBack
		});
		tween(self.createWorldButton, {
			y: 1100,
			alpha: 0
		}, {
			duration: 400,
			easing: tween.easeInBack
		});
		tween(self.loadWorldButton, {
			y: 1250,
			alpha: 0
		}, {
			duration: 400,
			easing: tween.easeInBack
		});
		tween(self.backButton, {
			y: 1500,
			alpha: 0
		}, {
			duration: 400,
			easing: tween.easeInBack,
			onFinish: function onFinish() {
				self.visible = false;
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Sky blue background
});

/**** 
* Game Code
****/ 
// Make sure JSON is defined for storage operations
// Game constants
function _typeof(o) {
	"@babel/helpers - typeof";
	return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
		return typeof o;
	} : function (o) {
		return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
	}, _typeof(o);
}
var JSON = {
	parse: function parse(text) {
		return LK.parseJSON(text);
	},
	stringify: function stringify(obj) {
		// Convert JavaScript object to a JSON string
		var str = '';
		if (obj === null) return 'null';
		if (typeof obj === 'undefined') return undefined;
		if (typeof obj === 'string') return '"' + obj.replace(/"/g, '\\"') + '"';
		if (typeof obj === 'number' || typeof obj === 'boolean') return obj.toString();
		if (Array.isArray(obj)) {
			str = '[';
			for (var i = 0; i < obj.length; i++) {
				str += (i > 0 ? ',' : '') + JSON.stringify(obj[i]);
			}
			return str + ']';
		}
		if (_typeof(obj) === 'object') {
			str = '{';
			var keys = Object.keys(obj);
			for (var i = 0; i < keys.length; i++) {
				var key = keys[i];
				str += (i > 0 ? ',' : '') + '"' + key + '":' + JSON.stringify(obj[key]);
			}
			return str + '}';
		}
		return '';
	}
};
var WorldGenerator = function WorldGenerator() {
	// Generate a new world with more advanced terrain features
	this.generate = function (width, height, blockSize) {
		var data = [];
		// Initialize with empty arrays
		for (var y = 0; y < height; y++) {
			data[y] = [];
			for (var x = 0; x < width; x++) {
				data[y][x] = null;
			}
		}
		// Generate terrain using simple noise
		var terrain = this.generateTerrain(width, height);
		// Apply terrain to world data
		for (var x = 0; x < width; x++) {
			var groundHeight = Math.floor(terrain[x] * height * 0.4) + Math.floor(height * 0.5);
			// Generate ground layers
			for (var y = groundHeight; y < height; y++) {
				if (y === groundHeight) {
					data[y][x] = 'grass';
				} else if (y < groundHeight + 3) {
					data[y][x] = 'ground';
				} else {
					// More stones deeper underground
					var stoneChance = Math.min(0.8, 0.2 + (y - groundHeight) * 0.05);
					data[y][x] = Math.random() < stoneChance ? 'stone' : 'ground';
				}
			}
			// Generate caves
			this.generateCaves(data, x, groundHeight, height);
		}
		// Add trees
		this.addTrees(data, width, height);
		// Add water bodies
		this.addWater(data, width, height);
		return data;
	};
	// Generate basic terrain height map using simple noise
	this.generateTerrain = function (width, height) {
		var terrain = [];
		var smoothness = 8; // Higher = smoother terrain
		// Start with random height
		terrain[0] = Math.random();
		// Generate rest using midpoint displacement-like approach
		for (var x = 1; x < width; x++) {
			// Get previous height with some randomness
			var prevHeight = terrain[x - 1];
			var randomFactor = (Math.random() - 0.5) * 2 / smoothness;
			// New height with constraints
			terrain[x] = Math.max(0.1, Math.min(0.9, prevHeight + randomFactor));
			// Add some hills/mountains occasionally
			if (Math.random() < 0.05) {
				var hillHeight = 0.1 + Math.random() * 0.2;
				var hillWidth = 3 + Math.floor(Math.random() * 5);
				// Create a hill centered at x
				for (var h = 0; h < hillWidth && x + h < width; h++) {
					var offset = hillHeight * Math.sin(h / hillWidth * Math.PI);
					if (x + h < width) {
						terrain[x + h] = Math.max(0.1, Math.min(0.9, terrain[x + h] - offset));
					}
				}
				// Skip ahead
				x += hillWidth;
			}
		}
		return terrain;
	};
	// Add random caves under the terrain
	this.generateCaves = function (data, x, groundHeight, height) {
		// Random caves deeper underground
		if (groundHeight + 5 < height) {
			for (var c = 0; c < 2; c++) {
				if (Math.random() < 0.05) {
					var caveY = groundHeight + 5 + Math.floor(Math.random() * (height - groundHeight - 10));
					var caveSize = 1 + Math.floor(Math.random() * 3);
					for (var cy = caveY; cy < caveY + caveSize && cy < height; cy++) {
						if (data[cy] && data[cy][x]) {
							data[cy][x] = null;
						}
					}
				}
			}
		}
	};
	// Add trees on the surface
	this.addTrees = function (data, width, height) {
		for (var x = 0; x < width; x++) {
			// Find the ground level
			var groundY = 0;
			for (var y = 0; y < height; y++) {
				if (data[y] && data[y][x] === 'grass') {
					groundY = y;
					break;
				}
			}
			// Add random trees (if we found ground and not at the edge)
			if (groundY > 0 && x > 2 && x < width - 2 && Math.random() < 0.1) {
				var treeHeight = 3 + Math.floor(Math.random() * 3);
				// Tree trunk
				for (var ty = 1; ty <= treeHeight; ty++) {
					if (groundY - ty >= 0) {
						data[groundY - ty][x] = 'wood';
					}
				}
				// Tree top (leaves would be added here if we had them)
				var treeTop = groundY - treeHeight - 1;
				if (treeTop >= 0) {
					for (var tx = -1; tx <= 1; tx++) {
						if (x + tx >= 0 && x + tx < width) {
							data[treeTop][x + tx] = 'wood';
							if (treeTop - 1 >= 0 && tx === 0) {
								data[treeTop - 1][x] = 'wood';
							}
						}
					}
				}
			}
		}
	};
	// Add water bodies (lakes, rivers)
	this.addWater = function (data, width, height) {
		// Add some water pools/lakes
		var lakeAttempts = Math.floor(width / 20);
		for (var l = 0; l < lakeAttempts; l++) {
			var lakeX = 5 + Math.floor(Math.random() * (width - 10));
			var lakeWidth = 3 + Math.floor(Math.random() * 5);
			// Find ground level at lakeX
			var lakeY = 0;
			for (var y = 0; y < height; y++) {
				if (data[y] && data[y][lakeX] === 'grass') {
					lakeY = y;
					break;
				}
			}
			// Create lake
			if (lakeY > 0) {
				for (var wx = 0; wx < lakeWidth && lakeX + wx < width; wx++) {
					if (data[lakeY] && data[lakeY][lakeX + wx]) {
						data[lakeY][lakeX + wx] = 'water';
						// Sometimes make deeper water
						if (Math.random() < 0.5 && lakeY + 1 < height) {
							data[lakeY + 1][lakeX + wx] = 'water';
						}
					}
				}
			}
		}
	};
	return this;
};
var blockSize = 64;
var worldWidth = 64;
var worldHeight = 32;
var gravity = 0.5;
// Game state
var gameStarted = false;
// Parse worldData from storage if it exists, checking for undefined/null values
var worldData;
try {
	worldData = storage.worldData && storage.worldData !== "undefined" ? JSON.parse(storage.worldData) : generateWorld();
} catch (e) {
	worldData = generateWorld();
}
var inventory = storage.inventory || {
	"grass": 0,
	"stone": 0,
	"wood": 0,
	"water": 0
};
var currentTool = 'place'; // 'place' or 'break'
var selectedBlockType = 'grass';
var selectedInventorySlot = 0;
// Game containers
var worldContainer = new Container();
var uiContainer = new Container();
var inventoryContainer = new Container();
var toolbarContainer = new Container();
game.addChild(worldContainer);
game.addChild(uiContainer);
// Create player
var player = new Player();
player.x = storage.playerPosition ? storage.playerPosition.x : 1024;
player.y = storage.playerPosition ? storage.playerPosition.y : 1600;
worldContainer.addChild(player);
// Create character
var character = new Character();
character.x = 500;
character.y = 1500;
worldContainer.addChild(character);
// Initialize world blocks
function initializeWorld() {
	// Clear any existing blocks
	while (worldContainer.children.length > 1) {
		// Keep player
		worldContainer.removeChildAt(1);
	}
	// Place blocks based on worldData
	for (var y = 0; y < worldData.length; y++) {
		for (var x = 0; x < worldData[y].length; x++) {
			if (worldData[y][x]) {
				var block = new Block(worldData[y][x], blockSize);
				block.x = x * blockSize + blockSize / 2;
				block.y = y * blockSize + blockSize / 2;
				worldContainer.addChild(block);
			}
		}
	}
	// Create platforms if this is a new world
	if (!storage.platformsCreated) {
		createPlatforms();
		storage.platformsCreated = true;
	}
}
// Generate a new world
function generateWorld() {
	var worldGen = new WorldGenerator();
	var data = worldGen.generate(worldWidth, worldHeight, blockSize);
	// Save the generated world
	storage.worldData = JSON.stringify(data);
	// Give player some starter blocks
	inventory = {
		"grass": 10,
		"stone": 10,
		"wood": 10,
		"water": 5
	};
	storage.inventory = inventory;
	return data;
}
// Setup UI
function setupUI() {
	// Create inventory bar
	setupInventory();
	// Create tool selection buttons
	setupToolbar();
	// Create control buttons (left, right, jump)
	setupControls();
	// Create main menu button
	setupMainMenuButton();
}
// Add main menu button to return to menu
function setupMainMenuButton() {
	var menuButton = new Button("Menu", function () {
		// Hide game elements
		gameStarted = false;
		// Show main menu
		mainMenu.show();
	});
	menuButton.x = 120;
	menuButton.y = 100;
	LK.gui.topRight.addChild(menuButton);
	// Add a character control button
	var characterButton = new Button("Character", function () {
		// Show character info or focus on character
		var targetX = -character.x + 2048 / 2;
		var targetY = -character.y + 2732 / 2;
		// Animate the camera movement to the character
		tween(worldContainer, {
			x: targetX,
			y: targetY
		}, {
			duration: 500,
			easing: tween.easeOutQuad
		});
	});
	characterButton.x = 120;
	characterButton.y = 200;
	LK.gui.topRight.addChild(characterButton);
}
function setupInventory() {
	inventoryContainer = new Container();
	var blockTypes = ['grass', 'stone', 'wood', 'water'];
	var slotSpacing = 100;
	// Create the background for selected slot
	var selectedSlotBg = LK.getAsset('selectedSlot', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	inventoryContainer.addChild(selectedSlotBg);
	// Create inventory slots
	for (var i = 0; i < blockTypes.length; i++) {
		var slot = new InventorySlot(i, blockTypes[i]);
		slot.x = i * slotSpacing;
		slot.countText.setText((inventory[blockTypes[i]] || 0).toString());
		inventoryContainer.addChild(slot);
	}
	// Position the inventory at the top center
	inventoryContainer.x = 2048 / 2 - (blockTypes.length - 1) * slotSpacing / 2;
	inventoryContainer.y = 100;
	// Create inventory title
	var inventoryTitle = new Text2("Inventory", {
		size: 40,
		fill: 0xFFFFFF
	});
	inventoryTitle.anchor.set(0.5, 1);
	inventoryTitle.x = (blockTypes.length - 1) * slotSpacing / 2;
	inventoryTitle.y = -20;
	inventoryContainer.addChild(inventoryTitle);
	// Update selected slot visual
	updateSelectedSlot();
	LK.gui.top.addChild(inventoryContainer);
}
function setupToolbar() {
	toolbarContainer = new Container();
	// Place tool
	var placeToolBtn = new Button("Place", function () {
		currentTool = 'place';
		updateToolbarSelection();
	});
	placeToolBtn.x = 0;
	toolbarContainer.addChild(placeToolBtn);
	// Break tool
	var breakToolBtn = new Button("Break", function () {
		currentTool = 'break';
		updateToolbarSelection();
	});
	breakToolBtn.x = 250;
	toolbarContainer.addChild(breakToolBtn);
	// Position toolbar at bottom right
	toolbarContainer.x = 2048 - 400;
	toolbarContainer.y = 2732 - 100;
	LK.gui.bottomRight.addChild(toolbarContainer);
	// Update the initial tool selection
	updateToolbarSelection();
}
function setupControls() {
	var controlsContainer = new Container();
	// Create movement controls container (at the bottom left)
	var moveControls = new Container();
	// Left button
	var leftBtn = new ControlButton("←", function () {
		player.move('left');
		player.stopMove = function () {
			player.velocity.x = 0;
		};
	});
	leftBtn.x = 0;
	leftBtn.y = 0;
	moveControls.addChild(leftBtn);
	// Right button
	var rightBtn = new ControlButton("→", function () {
		player.move('right');
		player.stopMove = function () {
			player.velocity.x = 0;
		};
	});
	rightBtn.x = 200;
	rightBtn.y = 0;
	moveControls.addChild(rightBtn);
	// Stop button
	var stopBtn = new ControlButton("■", function () {
		player.stopMove();
	});
	stopBtn.x = 100;
	stopBtn.y = 0;
	moveControls.addChild(stopBtn);
	// Position movement controls at bottom left
	moveControls.x = 150;
	moveControls.y = 2732 - 100;
	LK.gui.bottomLeft.addChild(moveControls);
	// Create action controls container (at bottom right)
	var actionControls = new Container();
	// Jump button
	var jumpBtn = new ControlButton("↑", function () {
		player.jump();
	});
	jumpBtn.x = 0;
	jumpBtn.y = 0;
	actionControls.addChild(jumpBtn);
	// Character jump button
	var characterJumpBtn = new ControlButton("C↑", function () {
		character.jump();
	});
	characterJumpBtn.x = -200;
	characterJumpBtn.y = 0;
	actionControls.addChild(characterJumpBtn);
	// Position action controls at bottom right
	actionControls.x = 2048 - 150;
	actionControls.y = 2732 - 100;
	LK.gui.bottomRight.addChild(actionControls);
}
function updateSelectedSlot() {
	var selectedSlotBg = inventoryContainer.getChildAt(0);
	var slot = inventoryContainer.getChildAt(selectedInventorySlot + 1);
	if (slot) {
		selectedSlotBg.x = slot.x;
		selectedSlotBg.y = slot.y;
		selectedBlockType = slot.type;
	}
}
function updateToolbarSelection() {
	var placeToolBtn = toolbarContainer.getChildAt(0);
	var breakToolBtn = toolbarContainer.getChildAt(1);
	if (currentTool === 'place') {
		if (placeToolBtn && placeToolBtn.buttonText) {
			placeToolBtn.buttonText.style = {
				fill: 0xFFFF00
			};
		}
		if (breakToolBtn && breakToolBtn.buttonText) {
			breakToolBtn.buttonText.style = {
				fill: 0xFFFFFF
			};
		}
	} else {
		if (placeToolBtn && placeToolBtn.buttonText) {
			placeToolBtn.buttonText.style = {
				fill: 0xFFFFFF
			};
		}
		if (breakToolBtn && breakToolBtn.buttonText) {
			breakToolBtn.buttonText.style = {
				fill: 0xFFFF00
			};
		}
	}
}
function selectInventorySlot(index) {
	selectedInventorySlot = index;
	updateSelectedSlot();
	// Play select sound
	LK.getSound('select').play();
}
function updateInventoryDisplay() {
	for (var i = 1; i < inventoryContainer.children.length; i++) {
		var slot = inventoryContainer.getChildAt(i);
		if (slot && typeof slot.updateCount === 'function') {
			slot.updateCount(inventory[slot.type] || 0);
		} else if (slot && slot.countText) {
			slot.countText.setText((inventory[slot.type] || 0).toString());
		}
	}
}
function updateCamera() {
	// Calculate how much to offset the world to center the player
	var targetX = -player.x + 2048 / 2;
	var targetY = -player.y + 2732 / 2;
	// Add bounds to prevent seeing outside the world
	targetX = Math.min(0, Math.max(targetX, -(worldWidth * blockSize - 2048)));
	targetY = Math.min(0, Math.max(targetY, -(worldHeight * blockSize - 2732)));
	// Smooth camera movement
	worldContainer.x = targetX;
	worldContainer.y = targetY;
}
function placeBlock(x, y) {
	// Convert screen position to world position
	var worldX = x - worldContainer.x;
	var worldY = y - worldContainer.y;
	// Convert world position to grid position
	var gridX = Math.floor(worldX / blockSize);
	var gridY = Math.floor(worldY / blockSize);
	// Check if we have this block type in inventory
	if (inventory[selectedBlockType] <= 0) {
		return;
	}
	// Check if position is valid
	if (gridX < 0 || gridX >= worldWidth || gridY < 0 || gridY >= worldHeight) {
		return;
	}
	// Check if space is empty
	if (!worldData[gridY] || gridX >= worldData[gridY].length || gridX < 0 || gridY < 0 || worldData[gridY][gridX] !== null) {
		return;
	}
	// Don't allow placing blocks where the player is standing
	var playerGridX = Math.floor(player.x / blockSize);
	var playerGridY = Math.floor(player.y / blockSize);
	var playerGridYBottom = Math.floor((player.y - 60) / blockSize); // Check player's head position too
	if (gridX === playerGridX && (gridY === playerGridY || gridY === playerGridYBottom)) {
		return; // Can't place block where player is standing
	}
	// Place the block
	worldData[gridY][gridX] = selectedBlockType;
	// Remove from inventory
	inventory[selectedBlockType]--;
	updateInventoryDisplay();
	// Create the block visually
	var block = new Block(selectedBlockType, blockSize);
	block.x = gridX * blockSize + blockSize / 2;
	block.y = gridY * blockSize + blockSize / 2;
	worldContainer.addChild(block);
	// Play place sound
	LK.getSound('place').play();
	// Save world data
	// Save the data directly to storage
	storage.worldData = JSON.stringify(worldData);
	storage.inventory = inventory;
}
// Game event handlers
game.down = function (x, y, obj) {
	if (!gameStarted) return; // Don't handle interactions if game hasn't started
	if (currentTool === 'place') {
		placeBlock(x, y);
	}
	// Check if we clicked on the character
	if (obj && (obj === character || obj.parent === character)) {
		character.startDrag();
		dragTarget = character;
		// Prevent placing blocks when clicking character
		return;
	}
};
// Add move handler for dragging character
game.move = function (x, y, obj) {
	if (dragTarget === character) {
		// Convert global coordinates to character's local space
		var localX = x - worldContainer.x;
		var localY = y - worldContainer.y;
		// Determine movement direction based on touch position relative to character
		if (localX > character.x + 10) {
			character.startMoving(1); // Move right
		} else if (localX < character.x - 10) {
			character.startMoving(-1); // Move left
		} else {
			character.stopMoving(); // Stop if touch is directly on character
		}
	}
};
// Add up handler to stop dragging
game.up = function (x, y, obj) {
	if (dragTarget === character) {
		character.stopDrag();
		character.stopMoving(); // Make sure character stops moving when touch is released
		dragTarget = null;
	}
};
// Initialize drag target variable
var dragTarget = null;
// Track control state for continuous button presses
var controlState = {
	left: false,
	right: false,
	jump: false
};
// Create platforms in the world
function createPlatforms() {
	// Create several platforms at different positions
	var platforms = [{
		x: 10,
		y: 20,
		width: 8,
		height: 1
	}, {
		x: 25,
		y: 18,
		width: 6,
		height: 1
	}, {
		x: 5,
		y: 15,
		width: 4,
		height: 1
	}, {
		x: 15,
		y: 12,
		width: 5,
		height: 1
	}, {
		x: 30,
		y: 10,
		width: 7,
		height: 1
	}];
	for (var i = 0; i < platforms.length; i++) {
		var p = platforms[i];
		var platform = new Platform(p.width, p.height);
		platform.x = p.x * blockSize;
		platform.y = p.y * blockSize;
		worldContainer.addChild(platform);
		// Add platform blocks to worldData
		for (var x = 0; x < p.width; x++) {
			for (var y = 0; y < p.height; y++) {
				var gridX = p.x + x;
				var gridY = p.y + y;
				if (gridY < worldHeight && gridX < worldWidth) {
					if (!worldData[gridY]) worldData[gridY] = [];
					worldData[gridY][gridX] = 'stone';
				}
			}
		}
	}
	// Save world data after creating platforms
	storage.worldData = JSON.stringify(worldData);
}
// Main game loop
game.update = function () {
	// Only update game elements if the game has started
	if (gameStarted) {
		// Update player
		player.update();
		// Update character
		character.update();
		// Check if any keys/buttons are being held down
		if (controlState) {
			if (controlState.left) {
				character.startMoving(-1);
			} else if (controlState.right) {
				character.startMoving(1);
			}
			if (controlState.jump && LK.ticks % 15 === 0) {
				character.jump();
			}
		}
		// Simple AI: Make character move back and forth
		if (LK.ticks % 120 === 0 && !dragTarget) {
			// Change direction every 2 seconds (only if not being controlled by player)
			character.startMoving(character.direction * -1);
		}
		// Save game data periodically
		if (LK.ticks % 300 === 0) {
			// Convert worldData to string before storing
			storage.worldData = JSON.stringify(worldData);
			storage.inventory = inventory;
		}
	}
};
// Create main menu
var mainMenu = new MainMenu();
mainMenu.x = 0;
mainMenu.y = 0;
game.addChild(mainMenu);
// Create world enter menu
var worldEnterMenu = new WorldEnterMenu();
worldEnterMenu.x = 0;
worldEnterMenu.y = 0;
worldEnterMenu.visible = false;
game.addChild(worldEnterMenu);
// Show main menu to start
mainMenu.show();
// Start background music
LK.playMusic('bgmusic');

===================================================================
--- original.js
+++ change.js
@@ -102,8 +102,9 @@
 	// Update method - called every frame
 	self.update = function () {
 		// Store last position for collision detection
 		var lastY = self.y;
+		var lastX = self.x;
 		// Handle movement
 		if (self.isMoving) {
 			self.x += self.speed * self.direction;
 			// Update animation
@@ -144,8 +145,19 @@
 		if (lastY < self.y && self.y - lastY < gravity * 1.5) {
 			// We just landed, stop any vertical momentum
 			self.y = Math.floor(self.y / blockSize) * blockSize - 10;
 		}
+		// Check for horizontal collisions
+		if (lastX !== self.x) {
+			var checkGridY = Math.floor((self.y - 50) / blockSize); // Check at character's mid height
+			var newGridX = Math.floor(self.x / blockSize);
+			// Check if there's a block at character's new position
+			if (checkGridY >= 0 && checkGridY < worldData.length && newGridX >= 0 && newGridX < worldData[checkGridY].length && worldData[checkGridY][newGridX]) {
+				// Collision detected, revert to previous position
+				self.x = lastX;
+				self.isMoving = false;
+			}
+		}
 	};
 	// Interactive events
 	self.down = function (x, y, obj) {
 		// Handle touch down on character
@@ -208,8 +220,68 @@
 		}
 	};
 	return self;
 });
+var ControlButton = Container.expand(function (text, callback, width, height) {
+	var self = Container.call(this);
+	width = width || 150;
+	height = height || 150;
+	// Create button background
+	var background = self.attachAsset('buttonBg', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		width: width,
+		height: height
+	});
+	// Create button text
+	self.buttonText = new Text2(text, {
+		size: 48,
+		fill: 0xFFFFFF
+	});
+	self.buttonText.anchor.set(0.5, 0.5);
+	self.addChild(self.buttonText);
+	// Store callback function
+	self.callback = callback;
+	// Add control type to identify button function
+	self.controlType = '';
+	if (text === '←') self.controlType = 'left';else if (text === '→') self.controlType = 'right';else if (text === '↑') self.controlType = 'jump';else if (text === '■') self.controlType = 'stop';
+	// Button interaction
+	self.down = function (x, y, obj) {
+		if (self.callback) {
+			background.alpha = 0.7;
+			self.callback();
+			// Set control state for continuous button press
+			if (self.controlType && controlState) {
+				if (self.controlType === 'left') {
+					controlState.left = true;
+					controlState.right = false;
+				} else if (self.controlType === 'right') {
+					controlState.right = true;
+					controlState.left = false;
+				} else if (self.controlType === 'jump') {
+					controlState.jump = true;
+				} else if (self.controlType === 'stop') {
+					controlState.left = false;
+					controlState.right = false;
+				}
+			}
+		}
+	};
+	self.up = function (x, y, obj) {
+		background.alpha = 1.0;
+		// Clear control state when button is released
+		if (self.controlType && controlState) {
+			if (self.controlType === 'left') {
+				controlState.left = false;
+			} else if (self.controlType === 'right') {
+				controlState.right = false;
+			} else if (self.controlType === 'jump') {
+				controlState.jump = false;
+			}
+		}
+	};
+	return self;
+});
 var InventorySlot = Container.expand(function (index, type) {
 	var self = Container.call(this);
 	self.index = index;
 	self.type = type;
@@ -953,36 +1025,61 @@
 	updateToolbarSelection();
 }
 function setupControls() {
 	var controlsContainer = new Container();
+	// Create movement controls container (at the bottom left)
+	var moveControls = new Container();
 	// Left button
-	var leftBtn = new Button("←", function () {
+	var leftBtn = new ControlButton("←", function () {
 		player.move('left');
+		player.stopMove = function () {
+			player.velocity.x = 0;
+		};
 	});
 	leftBtn.x = 0;
-	controlsContainer.addChild(leftBtn);
+	leftBtn.y = 0;
+	moveControls.addChild(leftBtn);
 	// Right button
-	var rightBtn = new Button("→", function () {
+	var rightBtn = new ControlButton("→", function () {
 		player.move('right');
+		player.stopMove = function () {
+			player.velocity.x = 0;
+		};
 	});
-	rightBtn.x = 250;
-	controlsContainer.addChild(rightBtn);
+	rightBtn.x = 200;
+	rightBtn.y = 0;
+	moveControls.addChild(rightBtn);
+	// Stop button
+	var stopBtn = new ControlButton("■", function () {
+		player.stopMove();
+	});
+	stopBtn.x = 100;
+	stopBtn.y = 0;
+	moveControls.addChild(stopBtn);
+	// Position movement controls at bottom left
+	moveControls.x = 150;
+	moveControls.y = 2732 - 100;
+	LK.gui.bottomLeft.addChild(moveControls);
+	// Create action controls container (at bottom right)
+	var actionControls = new Container();
 	// Jump button
-	var jumpBtn = new Button("Jump", function () {
+	var jumpBtn = new ControlButton("↑", function () {
 		player.jump();
 	});
-	jumpBtn.x = 500;
-	controlsContainer.addChild(jumpBtn);
+	jumpBtn.x = 0;
+	jumpBtn.y = 0;
+	actionControls.addChild(jumpBtn);
 	// Character jump button
-	var characterJumpBtn = new Button("Character Jump", function () {
+	var characterJumpBtn = new ControlButton("C↑", function () {
 		character.jump();
 	});
-	characterJumpBtn.x = 750;
-	controlsContainer.addChild(characterJumpBtn);
-	// Position controls at bottom left
-	controlsContainer.x = 200;
-	controlsContainer.y = 2732 - 100;
-	LK.gui.bottomLeft.addChild(controlsContainer);
+	characterJumpBtn.x = -200;
+	characterJumpBtn.y = 0;
+	actionControls.addChild(characterJumpBtn);
+	// Position action controls at bottom right
+	actionControls.x = 2048 - 150;
+	actionControls.y = 2732 - 100;
+	LK.gui.bottomRight.addChild(actionControls);
 }
 function updateSelectedSlot() {
 	var selectedSlotBg = inventoryContainer.getChildAt(0);
 	var slot = inventoryContainer.getChildAt(selectedInventorySlot + 1);
@@ -1128,8 +1225,14 @@
 	}
 };
 // Initialize drag target variable
 var dragTarget = null;
+// Track control state for continuous button presses
+var controlState = {
+	left: false,
+	right: false,
+	jump: false
+};
 // Create platforms in the world
 function createPlatforms() {
 	// Create several platforms at different positions
 	var platforms = [{
@@ -1186,11 +1289,22 @@
 		// Update player
 		player.update();
 		// Update character
 		character.update();
+		// Check if any keys/buttons are being held down
+		if (controlState) {
+			if (controlState.left) {
+				character.startMoving(-1);
+			} else if (controlState.right) {
+				character.startMoving(1);
+			}
+			if (controlState.jump && LK.ticks % 15 === 0) {
+				character.jump();
+			}
+		}
 		// Simple AI: Make character move back and forth
-		if (LK.ticks % 120 === 0) {
-			// Change direction every 2 seconds
+		if (LK.ticks % 120 === 0 && !dragTarget) {
+			// Change direction every 2 seconds (only if not being controlled by player)
 			character.startMoving(character.direction * -1);
 		}
 		// Save game data periodically
 		if (LK.ticks % 300 === 0) {