/**** 
* Classes
****/ 
var Tile = Container.expand(function () {
	var self = Container.call(this);
	// Properties
	self.type = 'empty';
	self.baseTint = 0x8FBE00;
	self.baseTintLight = 0x5ED000;
	self.maxWaterSize = 260;
	self.flowSpeed = 12;
	self.startFlowTicks = 0;
	self.flow = false;
	self.connections = [];
	self.position = {
		x: 0,
		y: 0
	};
	self.rotation = 0;
	// Methods
	self.setType = function (type, x, y) {
		self.type = type;
		var baseTileAsset = type == 'start' || type == 'end' || puzzleManager && puzzleManager.levelConfigs[puzzleManager.currentLevel].fixedTiles.includes(x + ',' + y) ? 'baseTile' : 'baseMobileTile';
		if (type == 'empty') {
			return;
		}
		// Attach baseTile asset
		self.baseTile = self.attachAsset(baseTileAsset, {
			anchorX: 0.5,
			anchorY: 0.5,
			width: tileSize,
			height: tileSize,
			tint: 0xFFFFFF
		});
		self.width = tileSize;
		self.height = tileSize;
		switch (type) {
			case 'start':
				self.attachAsset('startPipeAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: 20,
					y: 55,
					tint: self.baseTint
				});
				self.valve = self.attachAsset('vane', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: 20,
					y: 15,
					tint: self.baseTint
				});
				self.water = self.attachAsset('waterV', {
					anchorX: 0.5,
					anchorY: 0,
					x: -0,
					y: -120,
					height: 0,
					visible: false,
					dir: ''
				});
				break;
			case 'end':
				self.attachAsset('endPipeAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: 0,
					y: 55,
					tint: self.baseTint
				});
				self.water = self.attachAsset('waterV', {
					anchorX: 0.5,
					anchorY: 0,
					x: -0,
					y: -120,
					height: 0,
					visible: false,
					dir: ''
				});
				self.fountain = self.attachAsset('fontain', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: 0,
					y: 0,
					width: 0,
					height: 0,
					visible: false
				});
				break;
			case 'crossPipe':
				self.attachAsset('straightPipeHAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					y: -40,
					tint: self.baseTint
				});
				self.attachAsset('straightPipeHAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					scaleY: -1,
					y: 30,
					tint: self.baseTint
				});
				self.attachAsset('straightPipeVAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: -30,
					tint: self.baseTint
				});
				self.attachAsset('straightPipeVAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					scaleX: -1,
					x: 30,
					tint: self.baseTint
				});
				self.water = self.attachAsset('waterV', {
					anchorX: 0.5,
					anchorY: 0,
					x: -0,
					y: -120,
					height: 0,
					visible: false,
					dir: ''
				});
				break;
			case 'straightPipeH':
				self.attachAsset('straightPipeHAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					y: -40,
					tint: self.baseTint
				});
				self.attachAsset('straightPipeHAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					scaleY: -1,
					y: 30,
					tint: self.baseTint
				});
				self.water = self.attachAsset('waterH', {
					anchorX: 0,
					anchorY: 0.5,
					x: -130,
					y: -5,
					width: 0,
					visible: false,
					dir: 'lr'
				});
				break;
			case 'straightPipeV':
				self.attachAsset('straightPipeVAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: -30,
					tint: self.baseTint
				});
				self.attachAsset('straightPipeVAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					scaleX: -1,
					x: 30,
					tint: self.baseTint
				});
				self.water = self.attachAsset('waterV', {
					anchorX: 0.5,
					anchorY: 0,
					x: -0,
					y: -120,
					height: 0,
					visible: false,
					dir: 'tb'
				});
				break;
			case 'cornerPipe':
				self.attachAsset('cornerPipeAsset', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: -60,
					y: -60,
					tint: self.baseTintLight
				});
				// Corner part of the water
				self.waterCorner = self.attachAsset('waterCorner', {
					anchorX: 1,
					anchorY: 1,
					width: 108,
					height: 108,
					x: -65,
					y: -65,
					rotation: -Math.PI / 2,
					//-Math.PI / 2, at start to -Math.PI,
					visible: false,
					dir: ''
				});
				// Vertical part of the water
				self.waterV = self.attachAsset('waterV', {
					anchorX: 0.5,
					anchorY: 0,
					width: 110,
					x: -120,
					y: -5,
					rotation: -Math.PI / 2,
					height: 0,
					visible: false,
					dir: ''
				});
				// Horizontal part of the water
				self.waterH = self.attachAsset('waterH', {
					anchorX: 0,
					anchorY: 0.5,
					x: -5,
					y: -50,
					//-15,
					width: 0,
					height: 112,
					rotation: -Math.PI / 2,
					visible: false,
					dir: ''
				});
				// Corner part of the water
				self.waterCornerCover = self.attachAsset('waterCorner', {
					anchorX: 1,
					anchorY: 1,
					width: 108,
					height: 108,
					x: -65,
					y: -65,
					rotation: -Math.PI,
					visible: false,
					dir: ''
				});
				break;
		}
	};
	self.updatePosition = function (x, y) {
		self.position.x = x;
		self.position.y = y;
		if (self.baseTile) {
			self.baseTile.width = tileSize;
			self.baseTile.height = tileSize;
		}
		self.x = x * tileSize + gridBoard.x - gridBoard.width / 2 + tileSize / 2 + boardOffsetX;
		self.y = y * tileSize + gridBoard.y - gridBoard.height / 2 + tileSize / 2 + boardOffsetY;
		log('Tile index:', x, y, 'Tile position:', self.x, self.y, 'Tile dimensions:', self.width, self.height, ' self:', self);
	};
	self.setRotation = function (direction) {
		switch (direction) {
			case 'left':
				self.rotation = Math.PI * 0.5;
				break;
			case 'right':
				self.rotation = -Math.PI * 0.5;
				break;
			case 'up':
				self.rotation = 0;
				break;
			case 'down':
				self.rotation = Math.PI;
				break;
		}
		log('Tile position:', self.x, self.y, 'Tile rotation:', self.rotation);
	};
	self.update = function () {
		if (self.flow) {
			if (!self.startFlowTicks) {
				self.startFlowTicks = LK.ticks;
				if (self.water) {
					self.water.visible = true;
				}
				if (self.waterV) {
					self.waterV.visible = true;
				}
				if (self.waterH) {
					self.waterH.visible = true;
				}
			}
			if (self.type === 'start') {
				// Rotate valve for start pipe
				var rotationValue = (LK.ticks - self.startFlowTicks) * 0.1;
				if (self.valve) {
					self.valve.rotation = rotationValue;
				}
				if (rotationValue >= Math.PI * 2) {
					self.flow = false;
				}
			} else if (self.type === 'cornerPipe') {
				// Corner pipe animation
				var progress = (LK.ticks - self.startFlowTicks) * self.flowSpeed; // Accelerate water speed
				var thirdSize = self.maxWaterSize / 3 - 10; // Split animation into three phases
				var sidesSize = self.maxWaterSize / 3; //+ 40;
				if (progress < self.maxWaterSize) {
					// Phase 1: Vertical water grows
					if (progress < thirdSize) {
						if (self.waterV) {
							self.waterV.height = progress;
						}
					}
					// Phase 2: Corner water appears and rotates
					else if (progress < thirdSize * 2) {
						if (self.waterV) {
							self.waterV.height = thirdSize; // Keep vertical at full first-phase height
						}
						if (self.waterCorner) {
							self.waterCorner.visible = true;
							self.waterCorner.alpha = Math.min(Math.max(0, ((progress - thirdSize) / thirdSize - 0.5) * 2, 0), 1); // Animate alpha from 0 to 1
							// Calculate rotation from -PI/2 to -PI
							var rotationProgress = (progress - thirdSize) / thirdSize; // 0 to 1
							self.waterCorner.rotation = -Math.PI / 2 - rotationProgress * Math.PI / 2;
						}
					}
					// Phase 3: Horizontal water grows
					else {
						if (self.waterV) {
							self.waterV.height = thirdSize;
						}
						if (self.waterCorner) {
							self.waterCorner.visible = true;
							self.waterCorner.alpha = 1;
							self.waterCorner.rotation = -Math.PI; // Keep at final rotation
						}
						if (self.waterH) {
							self.waterH.visible = true;
							self.waterH.width = Math.min(progress - thirdSize * 2, sidesSize);
						}
					}
				} else {
					self.flow = false;
				}
			} else if (self.type === 'end' && self.fountain) {
				// Animate fountain growth
				var sizeValue = (LK.ticks - self.startFlowTicks) * self.flowSpeed;
				if (sizeValue < self.maxWaterSize) {
					self.fountain.width = sizeValue;
					self.fountain.height = sizeValue;
					self.fountain.visible = true;
				} else {
					self.flow = false;
					if (!waterDropInterval) {
						createWaterDrops(self.x, self.y, game);
						waterDropInterval = LK.setInterval(function () {
							createWaterDrops(self.x, self.y, game);
						}, 500 + Math.random() * 500);
					}
				}
			} else if (self.water) {
				// Regular pipe animation
				var heightValue = (LK.ticks - self.startFlowTicks) * self.flowSpeed;
				if (self.water.dir != '' && heightValue < self.maxWaterSize) {
					if (self.water.dir == 'tb') {
						self.water.height = heightValue;
					}
					if (self.water.dir == 'lr') {
						self.water.width = heightValue;
					}
				} else {
					self.flow = false;
				}
			}
		}
		if (self.type === 'end' && self.fountain && self.fountain.visible) {
			self.fountain.rotation += 0.1; // Rotate the fountain indefinitely
		}
	};
	self.setType(self.type);
	return self;
});
var WaterDrop = Container.expand(function () {
	var self = Container.call(this);
	var waterDropGraphics = self.attachAsset('waterDrop', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set initial tint to a random  color
	var rainbowColors = [0xC7ECFE, 0xDDFDFF, 0xF4FFFF, 0xC8F8FF]; // Rainbow [0xFF0000, 0xFF7F00, 0xFFFF00, 0x00FF00, 0x0000FF, 0x4B0082, 0x8B00FF];
	waterDropGraphics.tint = rainbowColors[Math.floor(Math.random() * rainbowColors.length)];
	self.vx = 0;
	self.vy = 0;
	self.life = 0;
	self.size = 7;
	self.alpha = 0.75 + Math.random() * 0.25;
	self.update = function () {
		self.x += self.vx;
		self.y += self.vy;
		self.rotation = Math.atan2(self.vy, self.vx) + Math.PI * 0.55;
		// Animate size 
		var sizeProgress = (120 - self.life) / 120; // Assuming life starts at 120
		waterDropGraphics.width = self.size + sizeProgress * self.size * 2;
		waterDropGraphics.height = self.size * 2 + sizeProgress * self.size * 4;
		self.life--;
		if (self.life <= 0) {
			self.visible = false;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
function _slicedToArray(r, e) {
	return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest();
}
function _nonIterableRest() {
	throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _unsupportedIterableToArray(r, a) {
	if (r) {
		if ("string" == typeof r) {
			return _arrayLikeToArray(r, a);
		}
		var t = {}.toString.call(r).slice(8, -1);
		return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;
	}
}
function _arrayLikeToArray(r, a) {
	(null == a || a > r.length) && (a = r.length);
	for (var e = 0, n = Array(a); e < a; e++) {
		n[e] = r[e];
	}
	return n;
}
function _iterableToArrayLimit(r, l) {
	var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
	if (null != t) {
		var e,
			n,
			i,
			u,
			a = [],
			f = !0,
			o = !1;
		try {
			if (i = (t = t.call(r)).next, 0 === l) {
				if (Object(t) !== t) {
					return;
				}
				f = !1;
			} else {
				for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0) {
					;
				}
			}
		} catch (r) {
			o = !0, n = r;
		} finally {
			try {
				if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) {
					return;
				}
			} finally {
				if (o) {
					throw n;
				}
			}
		}
		return a;
	}
}
function _arrayWithHoles(r) {
	if (Array.isArray(r)) {
		return r;
	}
}
var SimpleSet = function SimpleSet() {
	this.items = {};
	this.has = function (item) {
		return this.items.hasOwnProperty(item);
	};
	this.add = function (item) {
		if (!this.has(item)) {
			this.items[item] = true;
		}
	};
};
var PuzzleManager = function PuzzleManager() {
	var self = this;
	// Properties
	self.currentLevel = 1;
	self.maxLevels = 30;
	self.grid = [];
	self.gridSize = 4;
	self.selectedTile = null;
	self.waterFlowing = false;
	self.isComplete = false;
	// Level configurations
	self.levelConfigs = {
		1: {
			tiles: [['start', 'straightPipeV', 'straightPipeV', 'cornerPipe'], [null, null, null, 'straightPipeH'], [null, null, 'straightPipeH', null], [null, null, null, 'end']],
			rotations: {
				'0,3': 'left',
				'3,3': 'left'
			},
			fixedTiles: ['0,0', '0,1', '0,2', '0,3', '1,3', '3,3'] // All tiles fixed except 2,2
		},
		2: {
			tiles: [['start', 'straightPipeH', null, null], [null, 'cornerPipe', null, null], [null, 'straightPipeV', 'cornerPipe', null], [null, null, null, 'end']],
			rotations: {
				'0,1': 'right',
				'1,1': 'down',
				'2,2': 'left'
			}
		}
		// Add more levels here
	};
	self.initPuzzle = function () {
		log("Initializing puzzle for level", self.currentLevel);
		// Clear existing grid
		self.grid = [];
		// Get level config
		var config = self.levelConfigs[self.currentLevel];
		if (!config) {
			log("No configuration for level", self.currentLevel);
			return;
		}
		// Initialize grid
		for (var i = 0; i < self.gridSize; i++) {
			self.grid[i] = [];
			for (var j = 0; j < self.gridSize; j++) {
				var tile = new Tile();
				if (config.tiles[i] && config.tiles[i][j]) {
					tile.setType(config.tiles[i][j], i, j);
				}
				tile.updatePosition(i, j);
				self.grid[i][j] = tile;
				game.addChild(tile);
			}
		}
		// Apply rotations
		if (config.rotations) {
			for (var pos in config.rotations) {
				var _pos$split$map = pos.split(',').map(Number),
					_pos$split$map2 = _slicedToArray(_pos$split$map, 2),
					x = _pos$split$map2[0],
					y = _pos$split$map2[1];
				self.grid[x][y].setRotation(config.rotations[pos]);
			}
		}
	};
	self.selectTile = function (x, y) {
		// Convert screen coordinates to grid coordinates
		if (!isPlaying) {
			return;
		}
		// Adjust coordinate calculation to use grid board position and size
		var boardX = gridBoard.x - gridBoard.width / 2;
		var boardY = gridBoard.y - gridBoard.height / 2;
		var gridX = Math.floor((x - boardX) / tileSize);
		var gridY = Math.floor((y - boardY) / tileSize);
		log("Grid coordinates:", gridX, gridY);
		// Check if coordinates are within grid
		if (gridX >= 0 && gridX < self.gridSize && gridY >= 0 && gridY < self.gridSize) {
			var tile = self.grid[gridX][gridY];
			var key = gridX + ',' + gridY;
			// Check if tile exists, is not empty, not start/end, and not fixed
			if (tile && tile.type !== 'empty' && tile.type !== 'start' && tile.type !== 'end' && (!self.levelConfigs[self.currentLevel].fixedTiles || !self.levelConfigs[self.currentLevel].fixedTiles.includes(key))) {
				self.selectedTile = {
					x: gridX,
					y: gridY,
					tile: tile
				};
				// Check possible moves
				self.checkPossibleMoves();
			}
		}
	};
	self.checkPossibleMoves = function () {
		if (!self.selectedTile) {
			return;
		}
		var x = self.selectedTile.x;
		var y = self.selectedTile.y;
		var possibleMoves = [];
		// Check each direction
		// Right
		if (x < self.gridSize - 1 && self.grid[x + 1][y].type === 'empty') {
			possibleMoves.push('right');
		}
		// Left
		if (x > 0 && self.grid[x - 1][y].type === 'empty') {
			possibleMoves.push('left');
		}
		// Down
		if (y < self.gridSize - 1 && self.grid[x][y + 1].type === 'empty') {
			possibleMoves.push('down');
		}
		// Up
		if (y > 0 && self.grid[x][y - 1].type === 'empty') {
			possibleMoves.push('up');
		}
		self.selectedTile.possibleMoves = possibleMoves;
	};
	self.moveTile = function (direction) {
		if (!isPlaying || !self.selectedTile || !self.selectedTile.possibleMoves.includes(direction)) {
			return;
		}
		var oldX = self.selectedTile.x;
		var oldY = self.selectedTile.y;
		var newX = oldX;
		var newY = oldY;
		// Calculate new position
		switch (direction) {
			case 'right':
				newX++;
				break;
			case 'left':
				newX--;
				break;
			case 'down':
				newY++;
				break;
			case 'up':
				newY--;
				break;
		}
		// Swap tiles
		var movingTile = self.grid[oldX][oldY];
		var emptyTile = self.grid[newX][newY];
		// Update grid
		self.grid[newX][newY] = movingTile;
		self.grid[oldX][oldY] = emptyTile;
		// Update positions
		movingTile.updatePosition(newX, newY);
		emptyTile.updatePosition(oldX, oldY);
		// Clear selection
		self.selectedTile = null;
		// Check if puzzle is solved
		if (self.checkWinCondition()) {
			self.isComplete = true;
			self.startWaterFlow();
			levelText.setText('Level: ' + self.currentLevel + ' Solved!');
			isPlaying = false;
		}
	};
	self.reset = function () {
		self.currentLevel = 1;
		self.selectedTile = null;
		self.isComplete = false;
		self.waterFlowing = false;
		self.initPuzzle();
	};
	self.checkWinCondition = function () {
		// Find start tile
		var startTile = null;
		var startX = 0;
		var startY = 0;
		for (var i = 0; i < self.gridSize; i++) {
			for (var j = 0; j < self.gridSize; j++) {
				if (self.grid[i][j].type === 'start') {
					startTile = self.grid[i][j];
					startX = i;
					startY = j;
					log("Start tile found at:", startX, startY);
					break;
				}
			}
			if (startTile) {
				break;
			}
		}
		if (!startTile) {
			log("No start tile found");
			return false;
		}
		// Check if there's a valid path from start to end
		var result = self.canReachEnd(startX, startY, new SimpleSet());
		log("Win condition result:", result);
		return result;
	};
	self.canReachEnd = function (x, y, visited) {
		log("Checking position:", x, y);
		// Check bounds
		if (x < 0 || x >= self.gridSize || y < 0 || y >= self.gridSize) {
			log("Out of bounds");
			return false;
		}
		// Get current tile
		var tile = self.grid[x][y];
		if (!tile) {
			log("No tile at position");
			return false;
		}
		// Mark as visited
		var key = x + ',' + y;
		if (visited.has(key)) {
			log("Already visited");
			return false;
		}
		visited.add(key);
		log("Checking tile type:", tile.type);
		// If we reached the end tile, success!
		if (tile.type === 'end') {
			log("Found end tile!");
			return true;
		}
		// Get possible directions based on tile type and rotation
		var directions = [];
		switch (tile.type) {
			case 'start':
				directions.push([0, 1]); // Down
				break;
			case 'straightPipeV':
				directions.push([0, 1], [0, -1]); // Up and down
				break;
			case 'straightPipeH':
				directions.push([1, 0], [-1, 0]); // Left and right
				break;
			case 'cornerPipe':
				switch (tile.rotation) {
					case 'up':
						directions.push([1, 0], [0, -1]); // Right and up
						break;
					case 'right':
						directions.push([1, 0], [0, 1]); // Right and down
						break;
					case 'down':
						directions.push([-1, 0], [0, 1]); // Left and down
						break;
					default:
						// left
						directions.push([-1, 0], [0, -1]); // Left and up
						break;
				}
				break;
		}
		log("Possible directions:", directions);
		// Try each direction
		for (var i = 0; i < directions.length; i++) {
			var dx = directions[i][0];
			var dy = directions[i][1];
			if (self.canReachEnd(x + dx, y + dy, visited)) {
				return true;
			}
		}
		return false;
	};
	self.startWaterFlow = function () {
		if (self.waterFlowing) {
			return;
		}
		self.waterFlowing = true;
		// Find start tile
		var startTile = null;
		for (var i = 0; i < self.gridSize; i++) {
			for (var j = 0; j < self.gridSize; j++) {
				if (self.grid[i][j].type === 'start') {
					startTile = self.grid[i][j];
					break;
				}
			}
			if (startTile) {
				break;
			}
		}
		if (startTile) {
			// Start water animation on the start tile
			startTile.flow = true;
			startTile.startFlowTicks = 0;
			// Start valve animation
			if (startTile.valve) {
				startTile.valve.rotationSpeed = 0.1;
			}
		}
	};
	return self;
};
/**** 
* Game Variables
****/ 
var debug = true;
function log() {
	if (debug) {
		console.log.apply(console, arguments);
	}
}
// Game constants
var tileSize = 400;
var boardOffsetX = 90;
var boardOffsetY = -100;
// Game state variables
var GAME_STATE = {
	INIT: 'INIT',
	MENU: 'MENU',
	NEW_ROUND: 'NEW_ROUND',
	PLAYING: 'PLAYING',
	SCORE: 'SCORE'
};
var currentState = GAME_STATE.INIT;
var isPlaying = true;
var gridBoard;
var isMouseDown = false;
var startX = 0;
var startY = 0;
var selectedTile = null;
var dragThreshold = 20;
var levelText;
var waterDrops = [];
var waterDropInterval;
var puzzleManager;
/**** 
* Helper Functions
****/ 
function createWaterDrops(x, y, game) {
	for (var i = 0; i < 10; i++) {
		var waterDrop = waterDrops.find(function (drop) {
			return !drop.visible;
		});
		if (!waterDrop) {
			waterDrop = new WaterDrop();
			waterDrops.push(waterDrop);
			game.addChild(waterDrop);
		}
		waterDrop.x = x;
		waterDrop.y = y;
		var angle = Math.random() * Math.PI * 2;
		var speed = Math.random() * 3 + 3;
		var easeFactor = Math.random() * 0.05 + 0.95; // Random easing factor between 0.95 and 1.0
		waterDrop.vx = Math.cos(angle) * speed * easeFactor;
		waterDrop.vy = Math.sin(angle) * speed * easeFactor;
		waterDrop.life = 120;
		waterDrop.visible = true;
	}
}
/**** 
* Game State Management
****/ 
function initializeGame() {
	// Initialize game assets and variables
	puzzleManager = new PuzzleManager();
	// Initialize level text
	levelText = new Text2("Level 1", {
		size: 100,
		fill: "#ffffff"
	});
	levelText.x = 2048 / 2;
	levelText.y = 200;
	levelText.anchorX = 0.5;
	// Add the level text to the game
	game.addChild(levelText);
	// Initialize grid board
	gridBoard = LK.getAsset('gridBoard', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	gridBoard.x = 2048 / 2;
	gridBoard.y = 2732 / 2;
	game.addChild(gridBoard);
	// Transition to menu state
	changeGameState(GAME_STATE.MENU);
}
function initMenuState() {
	// Show level selection UI
	isPlaying = false;
	levelText.visible = true;
	levelText.text = "Level 1\nTap to Start";
}
function handleMenuLoop() {
	// Update any menu animations here
}
function cleanMenuState() {
	levelText.visible = true;
	levelText.text = "Level 1";
}
function initNewRoundState() {
	// Reset puzzle manager for new round
	if (puzzleManager) {
		puzzleManager.reset();
	}
	// After a short delay, transition to PLAYING state
	LK.setTimeout(function () {
		changeGameState(GAME_STATE.PLAYING);
	}, 1000);
}
function handleNewRoundLoop() {
	// Any pre-game animations can go here
}
function cleanNewRoundState() {
	// Clean up any new round state
}
function initPlayingState() {
	// Start the gameplay
	isPlaying = true;
}
function handlePlayingLoop() {
	// Update game logic
	if (puzzleManager) {
		puzzleManager.update();
		// Check if level is complete
		if (puzzleManager.isComplete) {
			changeGameState(GAME_STATE.SCORE);
		}
	}
}
function cleanPlayingState() {
	isPlaying = false;
}
function initScoreState() {
	// Show score screen
	levelText.visible = true;
	levelText.text = "Level Complete!\nTap to continue";
}
function handleScoreLoop() {
	// Update any score animations
	if (puzzleManager) {
		puzzleManager.update();
	}
}
function cleanScoreState() {
	levelText.visible = false;
}
function changeGameState(newState) {
	// Clean up current state
	switch (currentState) {
		case GAME_STATE.MENU:
			cleanMenuState();
			break;
		case GAME_STATE.NEW_ROUND:
			cleanNewRoundState();
			break;
		case GAME_STATE.PLAYING:
			cleanPlayingState();
			break;
		case GAME_STATE.SCORE:
			cleanScoreState();
			break;
	}
	// Initialize new state
	currentState = newState;
	switch (newState) {
		case GAME_STATE.MENU:
			initMenuState();
			break;
		case GAME_STATE.NEW_ROUND:
			initNewRoundState();
			break;
		case GAME_STATE.PLAYING:
			initPlayingState();
			break;
		case GAME_STATE.SCORE:
			initScoreState();
			break;
	}
}
/**** 
* Event Handlers
****/ 
game.down = function (x, y, obj) {
	switch (currentState) {
		case GAME_STATE.MENU:
			changeGameState(GAME_STATE.NEW_ROUND);
			break;
		case GAME_STATE.PLAYING:
			startX = x;
			startY = y;
			isMouseDown = true;
			if (puzzleManager) {
				puzzleManager.selectTile(x, y);
			}
			break;
		case GAME_STATE.SCORE:
			changeGameState(GAME_STATE.MENU);
			break;
	}
};
game.move = function (x, y, obj) {
	if (currentState !== GAME_STATE.PLAYING || !isMouseDown || !puzzleManager || !puzzleManager.selectedTile) {
		return;
	}
	var deltaX = x - startX;
	var deltaY = y - startY;
	// Only move if drag distance exceeds threshold
	if (Math.abs(deltaX) > dragThreshold || Math.abs(deltaY) > dragThreshold) {
		var direction = null;
		if (Math.abs(deltaX) > Math.abs(deltaY)) {
			direction = deltaX > 0 ? 'right' : 'left';
		} else {
			direction = deltaY > 0 ? 'down' : 'up';
		}
		puzzleManager.moveTile(direction);
		isMouseDown = false; // Reset after move
	}
};
game.up = function (x, y, obj) {
	isMouseDown = false;
	if (currentState === GAME_STATE.PLAYING && puzzleManager) {
		puzzleManager.selectedTile = null;
	}
};
/**** 
* Main Update Loop
****/ 
function update() {
	// Handle state-specific updates
	switch (currentState) {
		case GAME_STATE.MENU:
			handleMenuLoop();
			break;
		case GAME_STATE.NEW_ROUND:
			handleNewRoundLoop();
			break;
		case GAME_STATE.PLAYING:
			handlePlayingLoop();
			break;
		case GAME_STATE.SCORE:
			handleScoreLoop();
			break;
	}
	// Update water drops
	for (var i = waterDrops.length - 1; i >= 0; i--) {
		if (waterDrops[i].visible) {
			waterDrops[i].update();
		}
	}
}
// Start the game
initializeGame();

===================================================================
--- original.js
+++ change.js
@@ -404,35 +404,8 @@
 
 /**** 
 * Game Code
 ****/ 
-// Simple Set class to fix the constructor error
-var Set = function Set() {
-	var self = this;
-	self.items = {};
-	self.has = function (value) {
-		return self.items.hasOwnProperty(value);
-	};
-	self.add = function (value) {
-		self.items[value] = true;
-	};
-	self["delete"] = function (value) {
-		if (self.has(value)) {
-			delete self.items[value];
-			return true;
-		}
-		return false;
-	};
-	self.clear = function () {
-		self.items = {};
-	};
-	self.size = function () {
-		return Object.keys(self.items).length;
-	};
-	self.values = function () {
-		return Object.keys(self.items);
-	};
-};
 function _slicedToArray(r, e) {
 	return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest();
 }
 function _nonIterableRest() {
@@ -495,8 +468,19 @@
 	if (Array.isArray(r)) {
 		return r;
 	}
 }
+var SimpleSet = function SimpleSet() {
+	this.items = {};
+	this.has = function (item) {
+		return this.items.hasOwnProperty(item);
+	};
+	this.add = function (item) {
+		if (!this.has(item)) {
+			this.items[item] = true;
+		}
+	};
+};
 var PuzzleManager = function PuzzleManager() {
 	var self = this;
 	// Properties
 	self.currentLevel = 1;
@@ -564,16 +548,20 @@
 		// Convert screen coordinates to grid coordinates
 		if (!isPlaying) {
 			return;
 		}
-		var gridX = Math.floor((x - (gridBoard.x - gridBoard.width / 2 + tileSize / 2)) / tileSize);
-		var gridY = Math.floor((y - (gridBoard.y - gridBoard.height / 2 + tileSize / 2)) / tileSize);
+		// Adjust coordinate calculation to use grid board position and size
+		var boardX = gridBoard.x - gridBoard.width / 2;
+		var boardY = gridBoard.y - gridBoard.height / 2;
+		var gridX = Math.floor((x - boardX) / tileSize);
+		var gridY = Math.floor((y - boardY) / tileSize);
+		log("Grid coordinates:", gridX, gridY);
 		// Check if coordinates are within grid
 		if (gridX >= 0 && gridX < self.gridSize && gridY >= 0 && gridY < self.gridSize) {
 			var tile = self.grid[gridX][gridY];
 			var key = gridX + ',' + gridY;
 			// Check if tile exists, is not empty, not start/end, and not fixed
-			if (tile && tile.type !== 'empty' && tile.type !== 'start' && tile.type !== 'end' && !self.levelConfigs[self.currentLevel].fixedTiles.includes(key)) {
+			if (tile && tile.type !== 'empty' && tile.type !== 'start' && tile.type !== 'end' && (!self.levelConfigs[self.currentLevel].fixedTiles || !self.levelConfigs[self.currentLevel].fixedTiles.includes(key))) {
 				self.selectedTile = {
 					x: gridX,
 					y: gridY,
 					tile: tile
@@ -658,9 +646,8 @@
 		self.waterFlowing = false;
 		self.initPuzzle();
 	};
 	self.checkWinCondition = function () {
-		log("Checking win condition...");
 		// Find start tile
 		var startTile = null;
 		var startX = 0;
 		var startY = 0;
@@ -678,34 +665,40 @@
 				break;
 			}
 		}
 		if (!startTile) {
-			log("No start tile found.");
+			log("No start tile found");
 			return false;
 		}
 		// Check if there's a valid path from start to end
-		var result = self.canReachEnd(startX, startY, new Set());
+		var result = self.canReachEnd(startX, startY, new SimpleSet());
 		log("Win condition result:", result);
 		return result;
 	};
 	self.canReachEnd = function (x, y, visited) {
+		log("Checking position:", x, y);
 		// Check bounds
 		if (x < 0 || x >= self.gridSize || y < 0 || y >= self.gridSize) {
+			log("Out of bounds");
 			return false;
 		}
 		// Get current tile
 		var tile = self.grid[x][y];
 		if (!tile) {
+			log("No tile at position");
 			return false;
 		}
 		// Mark as visited
 		var key = x + ',' + y;
 		if (visited.has(key)) {
+			log("Already visited");
 			return false;
 		}
 		visited.add(key);
+		log("Checking tile type:", tile.type);
 		// If we reached the end tile, success!
 		if (tile.type === 'end') {
+			log("Found end tile!");
 			return true;
 		}
 		// Get possible directions based on tile type and rotation
 		var directions = [];
@@ -719,24 +712,30 @@
 			case 'straightPipeH':
 				directions.push([1, 0], [-1, 0]); // Left and right
 				break;
 			case 'cornerPipe':
-				if (tile.rotation === 'up') {
-					directions.push([1, 0], [0, -1]); // Right and up
-				} else if (tile.rotation === 'right') {
-					directions.push([1, 0], [0, 1]); // Right and down
-				} else if (tile.rotation === 'down') {
-					directions.push([-1, 0], [0, 1]); // Left and down
-				} else {
-					directions.push([-1, 0], [0, -1]); // Left and up
+				switch (tile.rotation) {
+					case 'up':
+						directions.push([1, 0], [0, -1]); // Right and up
+						break;
+					case 'right':
+						directions.push([1, 0], [0, 1]); // Right and down
+						break;
+					case 'down':
+						directions.push([-1, 0], [0, 1]); // Left and down
+						break;
+					default:
+						// left
+						directions.push([-1, 0], [0, -1]); // Left and up
+						break;
 				}
 				break;
 		}
+		log("Possible directions:", directions);
 		// Try each direction
-		for (var _i = 0, _directions = directions; _i < _directions.length; _i++) {
-			var _directions$_i = _slicedToArray(_directions[_i], 2),
-				dx = _directions$_i[0],
-				dy = _directions$_i[1];
+		for (var i = 0; i < directions.length; i++) {
+			var dx = directions[i][0];
+			var dy = directions[i][1];
 			if (self.canReachEnd(x + dx, y + dy, visited)) {
 				return true;
 			}
 		}