/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Tile = Container.expand(function () {
	var self = Container.call(this);
	self.pipeContainer = new Container();
	// Properties
	self.type = 'empty';
	self.baseTint = 0xaaaaaa;
	self.baseTintLight = 0xaaaaaa;
	self.maxWaterSize = 260;
	self.flowSpeed = 12;
	self.startFlowTicks = 0;
	self.flow = false;
	self.connections = [];
	self.position = {
		x: 0,
		y: 0
	};
	self.rotation = 0;
	self.normalizedRotation = 0;
	// Methods
	self.createStartTile = function () {
		self.pipeContainer.attachAsset('startPipeAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 20,
			y: 40,
			tint: self.baseTint
		});
		self.valve = self.pipeContainer.attachAsset('vane', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 20,
			y: -8,
			tint: self.baseTint
		});
		self.water = self.pipeContainer.attachAsset('waterV', {
			anchorX: 0.5,
			anchorY: 0,
			x: -0,
			y: -120,
			height: 0,
			visible: false,
			dir: ''
		});
	};
	self.createEndTile = function () {
		self.pipeContainer.attachAsset('endPipeAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 0,
			y: 55,
			tint: self.baseTint
		});
		self.water = self.pipeContainer.attachAsset('waterV', {
			anchorX: 0.5,
			anchorY: 0,
			x: -0,
			y: -120,
			height: 0,
			visible: false,
			dir: ''
		});
		self.fountain = self.pipeContainer.attachAsset('fontain', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 0,
			y: 0,
			width: 0,
			height: 0,
			visible: false
		});
	};
	self.createCrossPipe = function () {
		self.pipeContainer.attachAsset('straightPipeHAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			y: -40,
			tint: self.baseTint
		});
		self.pipeContainer.attachAsset('straightPipeHAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleY: -1,
			y: 30,
			tint: self.baseTint
		});
		self.pipeContainer.attachAsset('straightPipeVAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: -30,
			tint: self.baseTint
		});
		self.pipeContainer.attachAsset('straightPipeVAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: -1,
			x: 30,
			tint: self.baseTint
		});
		self.water = self.pipeContainer.attachAsset('waterV', {
			anchorX: 0.5,
			anchorY: 0,
			x: -0,
			y: -120,
			height: 0,
			visible: false,
			dir: ''
		});
	};
	self.createStraightPipeH = function () {
		self.pipeContainer.attachAsset('straightPipeHAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			y: -40,
			tint: self.baseTint
		});
		self.pipeContainer.attachAsset('straightPipeHAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleY: -1,
			y: 30,
			tint: self.baseTint
		});
		self.water = self.pipeContainer.attachAsset('waterH', {
			anchorX: 0,
			anchorY: 0.5,
			x: -130,
			y: -5,
			width: 0,
			visible: false,
			dir: 'lr'
		});
	};
	self.createStraightPipeV = function () {
		self.pipeContainer.attachAsset('straightPipeVAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: -30,
			tint: self.baseTint
		});
		self.pipeContainer.attachAsset('straightPipeVAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: -1,
			x: 30,
			tint: self.baseTint
		});
		self.water = self.pipeContainer.attachAsset('waterV', {
			anchorX: 0.5,
			anchorY: 0,
			x: -0,
			y: -120,
			height: 0,
			visible: false,
			dir: 'tb'
		});
	};
	self.createCornerPipe = function () {
		self.pipeContainer.attachAsset('cornerPipeAsset', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: -60,
			y: -60,
			tint: self.baseTintLight
		});
		self.waterCorner = self.pipeContainer.attachAsset('waterCorner', {
			anchorX: 1,
			anchorY: 1,
			width: 108,
			height: 108,
			x: -65,
			y: -65,
			rotation: -Math.PI / 2,
			visible: false,
			dir: ''
		});
		self.waterV = self.pipeContainer.attachAsset('waterV', {
			anchorX: 0.5,
			anchorY: 0,
			width: 110,
			x: -120,
			y: -5,
			rotation: -Math.PI / 2,
			height: 0,
			visible: false,
			dir: ''
		});
		self.waterH = self.pipeContainer.attachAsset('waterH', {
			anchorX: 0,
			anchorY: 0.5,
			x: -5,
			y: -50,
			width: 0,
			height: 112,
			rotation: -Math.PI / 2,
			visible: false,
			dir: ''
		});
		self.waterCornerCover = self.pipeContainer.attachAsset('waterCorner', {
			anchorX: 1,
			anchorY: 1,
			width: 108,
			height: 108,
			x: -65,
			y: -65,
			rotation: -Math.PI,
			visible: false,
			alpha: 0,
			dir: ''
		});
		self.pipeContainer.attachAsset('cornerPipeSection', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 148,
			height: 148,
			x: -0,
			y: -0,
			tint: self.baseTintLight
		});
		self.pipeContainer.attachAsset('pipeRing', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 144,
			height: 30,
			x: 0,
			y: -80,
			rotation: Math.PI * 0,
			tint: self.baseTintLight
		});
		self.pipeContainer.attachAsset('pipeRing', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 144,
			height: 30,
			x: -80,
			y: -5,
			rotation: Math.PI * 0.5,
			tint: self.baseTintLight
		});
	};
	self.getCornerPipeConfig = function () {
		// Define the water flow configuration based on normalized rotation
		var configs = _defineProperty(_defineProperty(_defineProperty(_defineProperty({}, Math.PI / 2, {
			// right
			primaryWater: 'waterV',
			secondaryWater: 'waterH',
			primaryGrowth: {
				property: 'height',
				direction: 1,
				position: {
					x: -120,
					y: -5
				},
				rotation: -Math.PI / 2
			},
			secondaryGrowth: {
				property: 'width',
				direction: 1,
				position: {
					x: -5,
					y: -50
				},
				rotation: -Math.PI / 2
			},
			cornerPosition: {
				x: -65,
				y: -65
			}
		}), 0, {
			// up
			primaryWater: 'waterH',
			secondaryWater: 'waterV',
			primaryGrowth: {
				property: 'width',
				direction: -1,
				position: {
					x: -5,
					y: -50
				},
				rotation: -Math.PI / 2
			},
			secondaryGrowth: {
				property: 'height',
				direction: 1,
				position: {
					x: -120,
					y: -5
				},
				rotation: -Math.PI / 2
			},
			cornerPosition: {
				x: -65,
				y: -65
			}
		}), Math.PI, {
			// down
			primaryWater: 'waterH',
			secondaryWater: 'waterV',
			primaryGrowth: {
				property: 'width',
				direction: 1,
				position: {
					x: -5,
					y: -50
				},
				rotation: -Math.PI / 2
			},
			secondaryGrowth: {
				property: 'height',
				direction: -1,
				position: {
					x: -120,
					y: -5
				},
				rotation: -Math.PI / 2
			},
			cornerPosition: {
				x: -65,
				y: -65
			}
		}), Math.PI * 1.5, {
			// left
			primaryWater: 'waterV',
			secondaryWater: 'waterH',
			primaryGrowth: {
				property: 'height',
				direction: -1,
				position: {
					x: -120,
					y: -5
				},
				rotation: -Math.PI / 2
			},
			secondaryGrowth: {
				property: 'width',
				direction: -1,
				position: {
					x: -5,
					y: -50
				},
				rotation: -Math.PI / 2
			},
			cornerPosition: {
				x: -65,
				y: -65
			}
		});
		return configs[self.normalizedRotation] || configs[0];
	};
	self.updateCornerPipeFirstPhase = function (progress, thirdSize) {
		log("Progress in first third:", progress);
		var config = self.getCornerPipeConfig();
		var primary = self[config.primaryWater];
		if (primary) {
			primary.visible = true;
			primary[config.primaryGrowth.property] = progress * config.primaryGrowth.direction;
			primary.x = config.primaryGrowth.position.x;
			primary.y = config.primaryGrowth.position.y;
			primary.rotation = config.primaryGrowth.rotation;
			if (config.primaryGrowth.direction < 0) {
				primary['scale' + (config.primaryGrowth.property === 'width' ? 'X' : 'Y')] = -1;
			}
			log("Primary water set to:", primary[config.primaryGrowth.property]);
		}
	};
	self.updateCornerPipeSecondPhase = function (progress, thirdSize) {
		log("Progress in second third:", progress);
		var config = self.getCornerPipeConfig();
		var primary = self[config.primaryWater];
		// Keep primary at max
		if (primary) {
			primary[config.primaryGrowth.property] = thirdSize * config.primaryGrowth.direction;
			log("Primary water at max:", primary[config.primaryGrowth.property]);
		}
		// Update corner water
		if (self.waterCorner) {
			self.waterCorner.visible = true;
			self.waterCorner.x = config.cornerPosition.x;
			self.waterCorner.y = config.cornerPosition.y;
			self.waterCorner.alpha = Math.min(Math.max(0, ((progress - thirdSize) / thirdSize - 0.5) * 2, 0), 1);
			var rotationProgress = (progress - thirdSize) / thirdSize;
			self.waterCorner.rotation = -Math.PI / 2 - rotationProgress * Math.PI / 2;
			log("WaterCorner visible with alpha:", self.waterCorner.alpha, "and rotation:", self.waterCorner.rotation);
		}
	};
	self.updateCornerPipeThirdPhase = function (progress, thirdSize, sidesSize) {
		log("Progress in final third:", progress);
		var config = self.getCornerPipeConfig();
		var primary = self[config.primaryWater];
		var secondary = self[config.secondaryWater];
		// Keep primary at max
		if (primary) {
			primary[config.primaryGrowth.property] = thirdSize * config.primaryGrowth.direction;
			log("Primary water at max:", primary[config.primaryGrowth.property]);
		}
		// Set corner to final state
		if (self.waterCorner) {
			self.waterCorner.visible = true;
			self.waterCorner.x = config.cornerPosition.x;
			self.waterCorner.y = config.cornerPosition.y;
			self.waterCorner.alpha = 1;
			self.waterCorner.rotation = -Math.PI;
			log("WaterCorner fully visible with rotation:", self.waterCorner.rotation);
		}
		// Grow secondary pipe
		if (secondary) {
			secondary.visible = true;
			secondary[config.secondaryGrowth.property] = Math.min(progress - thirdSize * 2, sidesSize) * config.secondaryGrowth.direction;
			secondary.x = config.secondaryGrowth.position.x;
			secondary.y = config.secondaryGrowth.position.y;
			secondary.rotation = config.secondaryGrowth.rotation;
			if (config.secondaryGrowth.direction < 0) {
				secondary['scale' + (config.secondaryGrowth.property === 'width' ? 'X' : 'Y')] = -1;
			}
			log("Secondary water visible with size:", secondary[config.secondaryGrowth.property]);
		}
	};
	self.updateEndTile = function () {
		if (self.fountain) {
			var sizeValue = (LK.ticks - self.startFlowTicks) * self.flowSpeed;
			if (sizeValue < self.maxWaterSize) {
				self.fountain.width = sizeValue;
				self.fountain.height = sizeValue;
				if (!self.fountain.visible) {
					self.fountain.visible = true;
					LK.getSound('fountain').play();
				}
			} 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);
					animateSoil();
				}
			}
		}
	};
	self.updateRegularPipe = function () {
		if (self.water) {
			var heightValue = (LK.ticks - self.startFlowTicks) * self.flowSpeed;
			if (heightValue < self.maxWaterSize) {
				self.water.visible = true;
				if (self.water.dir === 'lr') {
					self.water.width = heightValue;
					self.water.x = -130;
					self.water.scaleX = 1;
				} else if (self.water.dir === 'rl') {
					self.water.width = heightValue;
					self.water.x = 130;
					self.water.scaleX = -1;
				} else if (self.water.dir === 'tb') {
					self.water.height = heightValue;
					self.water.y = -130;
					self.water.scaleY = 1;
				} else if (self.water.dir === 'bt') {
					self.water.height = heightValue;
					self.water.y = 130;
					self.water.scaleY = -1;
				} else {
					self.water.height = heightValue;
				}
			} else {
				self.flow = false;
			}
		}
	};
	self.updateEndTileAnimation = function () {
		if (self.type === 'end' && self.fountain && self.fountain.visible) {
			self.fountain.rotation += 0.1;
			var sizeVariation = 30 * Math.sin(LK.ticks * 0.1);
			self.fountain.width = 250 + sizeVariation;
			self.fountain.height = 250 + sizeVariation;
		}
	};
	self.updateCornerPipe = function () {
		var progress = (LK.ticks - self.startFlowTicks) * self.flowSpeed;
		var thirdSize = self.maxWaterSize / 3 - 10;
		var sidesSize = self.maxWaterSize / 3;
		if (progress < thirdSize) {
			self.updateCornerPipeFirstPhase(progress, thirdSize);
		} else if (progress < thirdSize * 2) {
			self.updateCornerPipeSecondPhase(progress, thirdSize);
		} else {
			self.updateCornerPipeThirdPhase(progress, thirdSize, sidesSize);
		}
		if (progress >= self.maxWaterSize) {
			self.flow = false;
		}
	};
	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;
				}
			}
			switch (self.type) {
				case 'start':
					self.updateStartTile();
					break;
				case 'cornerPipe':
					self.updateCornerPipe();
					break;
				case 'end':
					self.updateEndTile();
					break;
				default:
					self.updateRegularPipe();
					break;
			}
		}
		self.updateEndTileAnimation();
	};
	self.setType = function (type, x, y) {
		self.type = type;
		var baseTileAsset = type == 'start' || type == 'end' || puzzleManager && puzzleManager.levelConfigs && puzzleManager.levelConfigs[puzzleManager.currentLevel] && puzzleManager.levelConfigs[puzzleManager.currentLevel].fixedTiles && 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.addChild(self.pipeContainer);
		self.width = tileSize;
		self.height = tileSize;
		// Create tile based on type
		switch (type) {
			case 'start':
				self.createStartTile();
				break;
			case 'end':
				self.createEndTile();
				break;
			case 'crossPipe':
				self.createCrossPipe();
				break;
			case 'straightPipeH':
				self.createStraightPipeH();
				break;
			case 'straightPipeV':
				self.createStraightPipeV();
				break;
			case 'cornerPipe':
				self.createCornerPipe();
				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.normalizeRotation = function (rotation) {
		// If rotation is a number (radians), convert it to our direction system
		if (typeof rotation === 'number') {
			switch (self.type) {
				case 'cornerPipe':
					// Convert radians to our direction system
					// 0 = up
					// π/2 = right
					// π = down
					// 3π/2 = left
					var angle = rotation % (2 * Math.PI);
					if (angle < 0) {
						angle += 2 * Math.PI;
					}
					if (angle < Math.PI / 4 || angle > 7 * Math.PI / 4) {
						log("Corner normalize ", angle, " => up");
						return 'left'; //'up';
					}
					if (angle < 3 * Math.PI / 4) {
						log("Corner normalize ", angle, " => right");
						return 'right';
					}
					if (angle < 5 * Math.PI / 4) {
						log("Corner normalize ", angle, " => down");
						return 'down';
					}
					log("Corner normalize ", angle, " => left");
					return 'up'; //'left';
					break;
				default:
					// Convert radians to our direction system
					// 0 = up
					// π/2 = right
					// π = down
					// 3π/2 = left
					var angle = rotation % (2 * Math.PI);
					if (angle < 0) {
						angle += 2 * Math.PI;
					}
					if (angle < Math.PI / 4 || angle > 7 * Math.PI / 4) {
						return 'down'; //'up';
					}
					if (angle < 3 * Math.PI / 4) {
						return 'right';
					}
					if (angle < 5 * Math.PI / 4) {
						return 'up'; // 'down';
					}
					return 'left';
					break;
			}
		}
		return rotation || 'down';
	};
	self.setRotation = function (direction) {
		switch (self.type) {
			case 'cornerPipe':
				switch (direction) {
					case 'left':
						self.pipeContainer.rotation = 0;
						self.normalizedRotation = 0;
						break;
					case 'right':
						self.pipeContainer.rotation = Math.PI * 0.5;
						self.normalizedRotation = Math.PI * 0.5;
						break;
					case 'up':
						self.pipeContainer.rotation = Math.PI;
						self.normalizedRotation = Math.PI;
						break;
					case 'down':
						self.pipeContainer.rotation = Math.PI * 1.5;
						self.normalizedRotation = Math.PI * 1.5;
						break;
				}
				log("Corner Set rot ", direction, " => ", self.pipeContainer.rotation);
				break;
			default:
				switch (direction) {
					case 'left':
						self.pipeContainer.rotation = -Math.PI * 1.5;
						break;
					case 'right':
						self.pipeContainer.rotation = -Math.PI * 0.5;
						break;
					case 'up':
						self.pipeContainer.rotation = Math.PI;
						break;
					case 'down':
						self.pipeContainer.rotation = 0;
						break;
				}
				break;
		}
		log('Tile position:', self.x, self.y, 'Tile rotation:', self.pipeContainer.rotation);
	};
	self.getNextPositions = function (x, y, type, normalizedRotation) {
		var nextPositions = [];
		switch (type) {
			case 'start':
				switch (normalizedRotation) {
					case 'down':
						nextPositions.push([x, y + 1]); // Down
						break;
					case 'up':
						nextPositions.push([x, y - 1]); // Up
						break;
					case 'left':
						nextPositions.push([x - 1, y]); // Left
						break;
					case 'right':
						nextPositions.push([x + 1, y]); // Right
						break;
				}
				break;
			case 'straightPipeV':
				nextPositions.push([x, y - 1], [x, y + 1]); // Up and down
				break;
			case 'straightPipeH':
				nextPositions.push([x - 1, y], [x + 1, y]); // Left and right
				break;
			case 'cornerPipe':
				switch (normalizedRotation) {
					case 'up':
						nextPositions.push([x - 1, y], [x, y + 1]); // Up and right
						break;
					case 'right':
						nextPositions.push([x + 1, y], [x, y + 1]); // Right and down
						break;
					case 'down':
						nextPositions.push([x + 1, y], [x, y + 1]); // Left and down
						break;
					case 'left':
						nextPositions.push([x - 1, y], [x, y - 1]); // Left and up
						break;
				}
				break;
		}
		return nextPositions;
	};
	self.updateStartTile = function () {
		var rotationValue = (LK.ticks - self.startFlowTicks) * 0.1;
		if (self.valve) {
			self.valve.rotation = rotationValue;
		}
		if (rotationValue >= Math.PI * 3) {
			self.flow = false;
		}
	};
	self.updateCornerPipeFirstPhase = function (progress, thirdSize) {
		log("Progress in first third:", progress);
		var config = self.getCornerPipeConfig();
		var primary = self[config.primaryWater];
		if (primary) {
			primary[config.primaryGrowth.property] = progress * config.primaryGrowth.direction;
			primary.x = config.primaryGrowth.position.x;
			primary.y = config.primaryGrowth.position.y;
			if (config.primaryGrowth.direction < 0) {
				primary['scale' + (config.primaryGrowth.property === 'width' ? 'X' : 'Y')] = -1;
			}
			log("Primary water set to:", primary[config.primaryGrowth.property]);
		}
	};
	self.updateCornerPipeSecondPhase = function (progress, thirdSize) {
		log("Progress in second third:", progress);
		var config = self.getCornerPipeConfig();
		var primary = self[config.primaryWater];
		// Keep primary at max
		if (primary) {
			primary[config.primaryGrowth.property] = thirdSize * config.primaryGrowth.direction;
			log("Primary water at max:", primary[config.primaryGrowth.property]);
		}
		// Update corner water
		if (self.waterCorner) {
			self.waterCorner.visible = true;
			self.waterCorner.alpha = Math.min(Math.max(0, ((progress - thirdSize) / thirdSize - 0.5) * 2, 0), 1);
			var rotationProgress = (progress - thirdSize) / thirdSize;
			self.waterCorner.rotation = -Math.PI / 2 - rotationProgress * Math.PI / 2;
			log("WaterCorner visible with alpha:", self.waterCorner.alpha, "and rotation:", self.waterCorner.rotation);
		}
	};
	self.updateCornerPipeThirdPhase = function (progress, thirdSize, sidesSize) {
		log("Progress in final third:", progress);
		var config = self.getCornerPipeConfig();
		var primary = self[config.primaryWater];
		var secondary = self[config.secondaryWater];
		// Keep primary at max
		if (primary) {
			primary[config.primaryGrowth.property] = thirdSize * config.primaryGrowth.direction;
			log("Primary water at max:", primary[config.primaryGrowth.property]);
		}
		// Set corner to final state
		if (self.waterCorner) {
			self.waterCorner.visible = true;
			self.waterCorner.alpha = 1;
			self.waterCorner.rotation = -Math.PI;
			log("WaterCorner fully visible with rotation:", self.waterCorner.rotation);
		}
		// Grow secondary pipe
		if (secondary) {
			secondary.visible = true;
			secondary[config.secondaryGrowth.property] = Math.min(progress - thirdSize * 2, sidesSize) * config.secondaryGrowth.direction;
			secondary.x = config.secondaryGrowth.position.x;
			secondary.y = config.secondaryGrowth.position.y;
			if (config.secondaryGrowth.direction < 0) {
				secondary['scale' + (config.secondaryGrowth.property === 'width' ? 'X' : 'Y')] = -1;
			}
			log("Secondary water visible with size:", secondary[config.secondaryGrowth.property]);
		}
	};
	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 _typeof2(o) {
	"@babel/helpers - typeof";
	return _typeof2 = "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;
	}, _typeof2(o);
}
function _slicedToArray2(r, e) {
	return _arrayWithHoles2(r) || _iterableToArrayLimit2(r, e) || _unsupportedIterableToArray2(r, e) || _nonIterableRest2();
}
function _nonIterableRest2() {
	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 _iterableToArrayLimit2(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 _arrayWithHoles2(r) {
	if (Array.isArray(r)) {
		return r;
	}
}
function _toConsumableArray(r) {
	return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray2(r) || _nonIterableSpread();
}
function _nonIterableSpread() {
	throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _unsupportedIterableToArray2(r, a) {
	if (r) {
		if ("string" == typeof r) {
			return _arrayLikeToArray2(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) ? _arrayLikeToArray2(r, a) : void 0;
	}
}
function _iterableToArray(r) {
	if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) {
		return Array.from(r);
	}
}
function _arrayWithoutHoles(r) {
	if (Array.isArray(r)) {
		return _arrayLikeToArray2(r);
	}
}
function _arrayLikeToArray2(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 ownKeys(e, r) {
	var t = Object.keys(e);
	if (Object.getOwnPropertySymbols) {
		var o = Object.getOwnPropertySymbols(e);
		r && (o = o.filter(function (r) {
			return Object.getOwnPropertyDescriptor(e, r).enumerable;
		})), t.push.apply(t, o);
	}
	return t;
}
function _objectSpread(e) {
	for (var r = 1; r < arguments.length; r++) {
		var t = null != arguments[r] ? arguments[r] : {};
		r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {
			_defineProperty2(e, r, t[r]);
		}) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {
			Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));
		});
	}
	return e;
}
function _defineProperty2(e, r, t) {
	return (r = _toPropertyKey2(r)) in e ? Object.defineProperty(e, r, {
		value: t,
		enumerable: !0,
		configurable: !0,
		writable: !0
	}) : e[r] = t, e;
}
function _toPropertyKey2(t) {
	var i = _toPrimitive2(t, "string");
	return "symbol" == _typeof2(i) ? i : i + "";
}
function _toPrimitive2(t, r) {
	if ("object" != _typeof2(t) || !t) {
		return t;
	}
	var e = t[Symbol.toPrimitive];
	if (void 0 !== e) {
		var i = e.call(t, r || "default");
		if ("object" != _typeof2(i)) {
			return i;
		}
		throw new TypeError("@@toPrimitive must return a primitive value.");
	}
	return ("string" === r ? String : Number)(t);
}
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);
}
function _defineProperty(e, r, t) {
	return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, {
		value: t,
		enumerable: !0,
		configurable: !0,
		writable: !0
	}) : e[r] = t, e;
}
function _toPropertyKey(t) {
	var i = _toPrimitive(t, "string");
	return "symbol" == _typeof(i) ? i : i + "";
}
function _toPrimitive(t, r) {
	if ("object" != _typeof(t) || !t) {
		return t;
	}
	var e = t[Symbol.toPrimitive];
	if (void 0 !== e) {
		var i = e.call(t, r || "default");
		if ("object" != _typeof(i)) {
			return i;
		}
		throw new TypeError("@@toPrimitive must return a primitive value.");
	}
	return ("string" === r ? String : Number)(t);
}
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': 'right',
				// corner
				'3,3': 'left' // end
			},
			fixedTiles: ['0,0', '0,1', '0,2', '0,3', '1,3', '3,3'] // All tiles fixed except 2,2
		},
		2: {
			tiles: [[null, 'straightPipeH', 'end', null], [null, 'cornerPipe', 'straightPipeH', null], [null, null, null, null], ['start', 'straightPipeV', null, null]],
			rotations: {
				'0,2': 'right',
				// end
				'1,1': 'left' // corner
			},
			fixedTiles: ['3,0', '3,1', '0,2', '1,2'] // Start, end, and 2 pipes fixed
		},
		3: {
			tiles: [['cornerPipe', null, null, 'straightPipeV'], ['cornerPipe', 'end', null, 'straightPipeH'], [null, null, null, null], [null, null, 'straightPipeV', 'start']],
			rotations: {
				'0,0': 'down',
				// corner 1
				'1,0': 'up',
				// corner 2
				'1,1': 'up',
				// end
				'3,3': 'up' // start
			},
			fixedTiles: ['1,0', '1,1', '3,2', '3,3'] // Start, end, and 2 pipe fixed
		}
		// 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]);*/
				var _pos$split$map = pos.split(',').map(Number),
					x = _pos$split$map[0],
					y = _pos$split$map[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] && self.grid[gridX][gridY] ? self.grid[gridX][gridY] : undefined;
			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)) {
			LK.getSound('tileBlocked').play(); // Play tileBlocked sound
			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];
		// Play tile slide sound
		LK.getSound('tileSlide').play();
		// 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();
			LK.getSound('levelWon').play(); // Play levelWon sound
			levelText.setText('Level: ' + self.currentLevel + ' Solved!');
			isPlaying = false;
		}
	};
	self.startWaterFlow = function () {
		log("Starting water flow...");
		if (self.waterFlowing) {
			return;
		}
		self.waterFlowing = true;
		// Find start position
		var startX = -1,
			startY = -1;
		for (var i = 0; i < self.gridSize; i++) {
			for (var j = 0; j < self.gridSize; j++) {
				if (self.grid[i][j].type === 'start') {
					startX = i;
					startY = j;
					break;
				}
			}
			if (startX !== -1) {
				break;
			}
		}
		// Start the flow animation from the start tile
		if (startX !== -1) {
			var startTile = self.grid[startX][startY];
			startTile.flow = true;
			startTile.startFlowTicks = 0;
			// Start valve animation
			if (startTile.valve) {
				startTile.valve.rotationSpeed = 0.1;
			}
			// Start flowing through pipes
			var startDirection = startTile.normalizeRotation(startTile.pipeContainer.rotation);
			self.flowThroughPipe(startX, startY, [], startDirection);
		}
	};
	self.flowThroughPipe = function (x, y, visited, fromDir) {
		log("Entering flowThroughPipe at position:", x, y, "Visited:", visited, "From:", fromDir);
		if (x < 0 || x >= self.gridSize || y < 0 || y >= self.gridSize) {
			log("Invalid position.");
			return;
		}
		var key = x + ',' + y;
		if (visited.includes(key)) {
			log("Already visited...");
			return;
		}
		visited.push(key);
		var tile = self.grid[x][y];
		log("Will pass :", tile ? tile.type : "none", " from ", fromDir);
		if (!tile || tile.type === 'empty') {
			return;
		}
		// Start flow animation for this tile
		tile.flow = true;
		if (tile.water) {
			tile.water.visible = true;
			// Set water direction based on pipe type and incoming direction
			if (tile.type === 'straightPipeH') {
				if (fromDir === 'right') {
					tile.water.dir = 'rl'; // right to left
				} else {
					tile.water.dir = 'lr'; // left to right
				}
			}
			if (tile.type === 'straightPipeV') {
				if (fromDir === 'down') {
					tile.water.dir = 'bt'; // top to bottom
				} else {
					tile.water.dir = 'tb'; // bottom to top
				}
			}
		}
		if (tile.waterV) {
			tile.waterV.visible = true;
		}
		if (tile.waterH) {
			tile.waterH.visible = true;
			if (fromDir === 'right') {
				tile.waterH.scaleX = -1; // Flow right to left
			} else {
				tile.waterH.scaleX = 1; // Flow left to right
			}
		}
		if (tile.type === 'end') {
			createWaterDrops(tile.x, tile.y + 100, game);
			return;
		}
		var normalizedRotation = tile.normalizeRotation(tile.pipeContainer.rotation);
		var nextPositions = tile.getNextPositions(x, y, tile.type, normalizedRotation);
		// Wait for flow animation to complete before moving to next tiles
		LK.setTimeout(function () {
			for (var i = 0; i < nextPositions.length; i++) {
				var nextX = nextPositions[i][0];
				var nextY = nextPositions[i][1];
				// Determine flow direction for next tile
				var nextDir;
				if (nextX > x) {
					nextDir = 'left';
				} // Coming from left
				else if (nextX < x) {
					nextDir = 'right';
				} // Coming from right
				else if (nextY > y) {
					nextDir = 'up';
				} // Coming from up
				else {
					nextDir = 'down';
				} // Coming from down
				self.flowThroughPipe(nextX, nextY, visited, nextDir);
			}
		}, 300);
	};
	self.reset = function () {
		self.selectedTile = null;
		if (self.isComplete) {
			self.currentLevel++;
		} else {
			self.currentLevel = self.currentLevel || 1;
		}
		self.isComplete = false;
		self.waterFlowing = false;
		// Remove previous level tiles
		self.grid.forEach(function (row) {
			row.forEach(function (tile) {
				if (tile) {
					tile.destroy();
				}
			});
		});
		self.initPuzzle();
	};
	self.checkWinCondition = function () {
		// Find start position
		log("=== Starting Win Condition Check ===");
		log("Grid state:");
		for (var i = 0; i < self.gridSize; i++) {
			var row = [];
			for (var j = 0; j < self.gridSize; j++) {
				var tile = self.grid[i][j];
				row.push(tile ? "".concat(tile.type, "(").concat(tile.rotation, ")") : 'empty');
			}
			log("Row", i + ":", row.join(' | '));
		}
		var startX = -1,
			startY = -1;
		for (var i = 0; i < self.gridSize; i++) {
			for (var j = 0; j < self.gridSize; j++) {
				if (self.grid[i][j].type === 'start') {
					startX = i;
					startY = j;
					log("Start tile found at:", startX, startY);
					break;
				}
			}
			if (startX !== -1) {
				break;
			}
		}
		// Use array to track visited positions
		var visited = [];
		log("Starting path check from:", startX, startY);
		// Start flowing down from start
		var result = self.canReachEnd(startX, startY, visited);
		log("Path check complete. Result:", result);
		log("Visited positions:", visited);
		log("=== Win Condition Check Complete ===");
		return result;
	};
	self.canReachEnd = function (x, y, visited) {
		log("Checking position:", x, y);
		if (x < 0 || x >= self.gridSize || y < 0 || y >= self.gridSize) {
			log("Position out of bounds");
			return false;
		}
		var key = x + ',' + y;
		if (visited.includes(key)) {
			log("Position already visited:", key);
			return false;
		}
		visited.push(key);
		var tile = self.grid[x][y];
		if (!tile || tile.type === 'empty') {
			log("No tile or empty tile at position:", x, y);
			return false;
		}
		if (tile.type === 'end') {
			log("Found end tile!");
			return true;
		}
		var normalizedRotation = tile.normalizeRotation(tile.pipeContainer.rotation);
		log("Checking tile:", tile.type, "with normalized rotation:", normalizedRotation, "at position:", x, y);
		var nextPositions = tile.getNextPositions(x, y, tile.type, normalizedRotation);
		log("Next positions to check:", nextPositions);
		for (var i = 0; i < nextPositions.length; i++) {
			var nextPos = nextPositions[i];
			log("Trying next position:", nextPos);
			if (self.canReachEnd(nextPos[0], nextPos[1], visited)) {
				return true;
			}
		}
		return false;
	};
	return this;
};
/**** 
* Game Variables
****/ 
var debug = true;
function log() {
	if (debug) {
		console.log.apply(console, arguments);
	}
}
// Game constants
var tileSize = 400;
var boardOffsetX = 100;
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 backgroundLayer;
var middleLayer;
var gridBoard;
var gridBoardSoil;
var growGrass;
var isMouseDown = false;
var startX = 0;
var startY = 0;
var selectedTile = null;
var dragThreshold = 20;
var levelText;
var waterDrops = [];
var waterDropInterval;
var logo;
var puzzleManager;
/**** 
* Helper Functions
****/ 
function createWaterDrops(x, y, game) {
	for (var i = 0; i < 30; 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 = 250;
		waterDrop.visible = true;
	}
}
function animateSoil() {
	log("Animate soil...");
	gridBoardSoil.visible = true;
	gridBoardSoil.alpha = 0;
	var alphaIncrement = 0.05; // Adjust the increment for desired speed
	// Animate all baseTile tiles' alpha from 1 to 0
	puzzleManager.grid.forEach(function (row) {
		row.forEach(function (tile) {
			if (tile.baseTile) {
				tile.baseTile.alpha = 1;
				LK.setInterval(function () {
					if (tile.baseTile.alpha > 0) {
						tile.baseTile.alpha -= alphaIncrement;
					}
				}, 50);
			}
		});
	});
	var soilAnimation = LK.setInterval(function () {
		if (gridBoardSoil.alpha < 1) {
			gridBoardSoil.alpha += alphaIncrement;
		} else {
			LK.clearInterval(soilAnimation);
			growGrass.visible = true;
			// Animate growGrass alpha from 0 to 1
			var grassAnimation = LK.setInterval(function () {
				if (growGrass.alpha < 1) {
					growGrass.alpha += 0.05; // Adjust the increment for desired speed
				} else {
					LK.clearInterval(grassAnimation);
					LK.setTimeout(function () {
						cleanPlayingState();
						initNewRoundState();
					}, 2000);
				}
			}, 75); // Adjust the interval for desired speed
		}
	}, 50); // Adjust the interval for desired speed
}
/**** 
* Game State Management
****/ 
function initializeGame() {
	// Init and Add backgroundLayer
	backgroundLayer = new Container();
	middleLayer = new Container();
	game.addChild(backgroundLayer);
	// Initialize grid board
	gridBoard = LK.getAsset('gridBoard', {
		anchorX: 0.5,
		anchorY: 0.5,
		visible: false
	});
	gridBoard.x = 2048 / 2;
	gridBoard.y = 2732 / 2;
	game.addChild(gridBoard);
	// Initialize grid board soil
	gridBoardSoil = LK.getAsset('gridBoardSoil', {
		anchorX: 0.5,
		anchorY: 0.5,
		visible: false,
		alpha: 0
	});
	gridBoardSoil.x = 2048 / 2 + 20;
	gridBoardSoil.y = 2732 / 2 - 20;
	game.addChild(gridBoardSoil);
	game.addChild(middleLayer);
	// Create growGrass asset
	growGrass = LK.getAsset('growGrass', {
		anchorX: 0.5,
		anchorY: 0.5,
		visible: false,
		alpha: 0
	});
	growGrass.x = 2048 / 2 + 20;
	growGrass.y = 2732 / 2;
	middleLayer.addChild(growGrass);
	// Initialize game assets and variables
	puzzleManager = new PuzzleManager();
	// Initialize level text
	levelText = new Text2("Level 1", {
		size: 100,
		fill: 0xFFFFFF
	});
	levelText.x = 2048 / 2;
	levelText.y = 200;
	levelText.anchorX = 0.5;
	levelText.visible = false;
	// Add the level text to the game
	game.addChild(levelText);
	// Transition to menu state
	changeGameState(GAME_STATE.MENU);
}
function initMenuState() {
	// Show level selection UI
	console.log("Entering Menu State");
	isPlaying = false;
	// Add backgroundPlaying1 to the menu state
	var backgroundPlaying1 = LK.getAsset('backgroundPlaying1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	backgroundPlaying1.x = 2048 / 2;
	backgroundPlaying1.y = 2732 / 2;
	backgroundLayer.addChild(backgroundPlaying1);
	// Add logo to the menu state
	logo = LK.getAsset('logo', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: 1480,
		height: 1480
	});
	logo.x = 2048 / 2;
	logo.y = -logo.height; // Initialize logo out of screen 
	middleLayer.addChild(logo);
	// Update any menu animations here
	tween(logo, {
		x: 2048 / 2,
		// Center horizontally 
		y: 2732 / 2 - 50 // Center vertically with offset 
	}, {
		duration: 1000,
		easing: tween.bounceOut // Use predefined bounceOut easing function 
	});
}
function handleMenuLoop() {}
function cleanMenuState() {
	if (logo) {
		logo.visible = false;
		game.removeChild(logo);
	}
}
function initNewRoundState() {
	// Create and add backgroundPlaying1 to backgroundLayer
	var backgroundPlaying1 = LK.getAsset('backgroundPlaying1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	backgroundPlaying1.x = 2048 / 2;
	backgroundPlaying1.y = 2732 / 2;
	backgroundLayer.addChild(backgroundPlaying1);
	levelText.visible = true;
	levelText.text = "Level 1";
	// Reset puzzle manager for new round
	console.log("Entering New Round State");
	if (puzzleManager) {
		puzzleManager.reset();
	}
	// Show gridBoard 
	gridBoard.visible = true;
	// 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
	console.log("Entering Playing State");
	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;
	// Reset gridBoardSoil visibility and alpha
	if (gridBoardSoil) {
		gridBoardSoil.visible = false;
		gridBoardSoil.alpha = 0;
	}
	// Hide growGrass
	if (growGrass) {
		growGrass.visible = false;
		growGrass.alpha = 0;
	}
	// Stop waterdrops animations if any
	if (waterDropInterval) {
		LK.clearInterval(waterDropInterval);
		waterDropInterval = null;
	}
	// Remove remaining waterdrops if any
	for (var i = waterDrops.length - 1; i >= 0; i--) {
		if (waterDrops[i].visible) {
			waterDrops[i].destroy();
			waterDrops.splice(i, 1);
		}
	}
}
function initScoreState() {
	// Show score screen
	console.log("Entering Score State");
	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
	console.log("Changing state from", currentState, "to", newState);
	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();
// Level generator function that creates progressively challenging levels
function generateNextLevel(existingLevels) {
	// Get the last level configuration as base
	if (!existingLevels || existingLevels.length === 0) {
		throw new Error("No existing levels to base the new level on.");
	}
	var lastLevel = existingLevels && existingLevels.length > 0 ? existingLevels[existingLevels.length - 1] : null;
	if (!lastLevel || !lastLevel.tiles || !lastLevel.rotations || !lastLevel.fixedTiles) {
		throw new Error("No valid last level found to base the new level on.");
	}
	// Deep clone the last level to avoid modifying it
	var newLevel = {
		tiles: JSON.parse(JSON.stringify(lastLevel.tiles)),
		rotations: _objectSpread({}, lastLevel.rotations),
		fixedTiles: _toConsumableArray(lastLevel.fixedTiles)
	};
	// Find empty spaces in the grid
	var emptySpaces = [];
	for (var y = 0; y < 4; y++) {
		for (var x = 0; x < 4; x++) {
			if (!newLevel.tiles[y][x] && !isStartOrEnd(newLevel.tiles[y][x])) {
				emptySpaces.push([x, y]);
			}
		}
	}
	// Add 1-2 new pipes in empty spaces
	var numNewPipes = Math.min(1 + Math.floor(Math.random() * 2), emptySpaces.length);
	for (var i = 0; i < numNewPipes; i++) {
		var spaceIndex = Math.floor(Math.random() * emptySpaces.length);
		var _emptySpaces$spaceInd = _slicedToArray2(emptySpaces[spaceIndex], 2),
			x = _emptySpaces$spaceInd[0],
			y = _emptySpaces$spaceInd[1];
		emptySpaces.splice(spaceIndex, 1);
		// Add either straightPipeH, straightPipeV, or cornerPipe
		var pipeTypes = ['straightPipeH', 'straightPipeV', 'cornerPipe'];
		var newPipe = pipeTypes[Math.floor(Math.random() * pipeTypes.length)];
		newLevel.tiles[y][x] = newPipe;
		// If it's a corner pipe, add rotation
		if (newPipe === 'cornerPipe') {
			newLevel.rotations["".concat(y, ",").concat(x)] = Math.random() < 0.5 ? 'left' : 'right';
		}
		// 70% chance to make it fixed
		if (Math.random() < 0.7) {
			newLevel.fixedTiles.push("".concat(y, ",").concat(x));
		}
	}
	// Randomly unfix one previously fixed tile to increase difficulty
	var removableFixed = newLevel.fixedTiles.filter(function (pos) {
		var _pos$split$map2 = pos.split(',').map(Number),
			_pos$split$map3 = _slicedToArray2(_pos$split$map2, 2),
			y = _pos$split$map3[0],
			x = _pos$split$map3[1];
		return !isStartOrEnd(newLevel.tiles[y][x]);
	});
	if (removableFixed.length > 0) {
		var indexToRemove = Math.floor(Math.random() * removableFixed.length);
		newLevel.fixedTiles = newLevel.fixedTiles.filter(function (pos) {
			return pos !== removableFixed[indexToRemove];
		});
	}
	return newLevel;
}
// Helper function to check if a tile is start or end
function isStartOrEnd(tileType) {
	return tileType === 'start' || tileType === 'end';
}
// Get existing levels from the PuzzleManager
var existingLevels = [
// Level 1
{
	tiles: [['start', 'straightPipeV', 'straightPipeV', 'cornerPipe'], [null, null, null, 'straightPipeH'], [null, null, 'straightPipeH', null], [null, null, null, 'end']],
	rotations: {
		'0,3': 'right',
		'3,3': 'left'
	},
	fixedTiles: ['0,0', '0,1', '0,2', '0,3', '1,3', '3,3']
},
// Level 2
{
	tiles: [[null, 'straightPipeH', 'end', null], [null, 'cornerPipe', 'straightPipeH', null], [null, null, null, null], ['start', 'straightPipeV', null, null]],
	rotations: {
		'0,2': 'right',
		'1,1': 'left'
	},
	fixedTiles: ['3,0', '3,1', '0,2', '1,2']
}];
// Generate and log a new level
console.log("Generated Level:", generateNextLevel(existingLevels));

===================================================================
--- original.js
+++ change.js
@@ -1851,9 +1851,9 @@
 	if (!existingLevels || existingLevels.length === 0) {
 		throw new Error("No existing levels to base the new level on.");
 	}
 	var lastLevel = existingLevels && existingLevels.length > 0 ? existingLevels[existingLevels.length - 1] : null;
-	if (!lastLevel) {
+	if (!lastLevel || !lastLevel.tiles || !lastLevel.rotations || !lastLevel.fixedTiles) {
 		throw new Error("No valid last level found to base the new level on.");
 	}
 	// Deep clone the last level to avoid modifying it
 	var newLevel = {