/**** 
* Classes
****/ 
// Removed the import statement for the tween plugin as it is causing an error
// Removed the import statement for the tween plugin as it is causing an error
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
****/ 
/**** 
* Global level configurations
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
function _slicedToArray5(r, e) {
	return _arrayWithHoles5(r) || _iterableToArrayLimit5(r, e) || _unsupportedIterableToArray5(r, e) || _nonIterableRest5();
}
function _arrayWithHoles5(r) {
	if (Array.isArray(r)) {
		return r;
	}
}
function _iterableToArrayLimit5(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 _unsupportedIterableToArray5(r, a) {
	if (r) {
		if ("string" == typeof r) {
			return _arrayLikeToArray5(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) ? _arrayLikeToArray5(r, a) : void 0;
	}
}
function _arrayLikeToArray5(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 _nonIterableRest5() {
	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 _createForOfIteratorHelper(o, allowArrayLike) {
	var it;
	if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
		if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
			if (it) {
				o = it;
			}
			var i = 0;
			var F = function F() {};
			return {
				s: F,
				n: function n() {
					if (i >= o.length) {
						return {
							done: true
						};
					}
					return {
						done: false,
						value: o[i++]
					};
				},
				e: function e(_e) {
					throw _e;
				},
				f: F
			};
		}
		throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
	}
	var normalCompletion = true,
		didErr = false,
		err;
	return {
		s: function s() {
			it = o[Symbol.iterator]();
		},
		n: function n() {
			var step = it.next();
			normalCompletion = step.done;
			return step;
		},
		e: function e(_e2) {
			didErr = true;
			err = _e2;
		},
		f: function f() {
			try {
				if (!normalCompletion && it["return"] != null) {
					it["return"]();
				}
			} finally {
				if (didErr) {
					throw err;
				}
			}
		}
	};
}
/**** 
* Global level configurations
****/ 
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 _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 _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 _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 _slicedToArray4(r, e) {
	return _arrayWithHoles4(r) || _iterableToArrayLimit4(r, e) || _unsupportedIterableToArray4(r, e) || _nonIterableRest4();
}
function _nonIterableRest4() {
	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 _unsupportedIterableToArray4(r, a) {
	if (r) {
		if ("string" == typeof r) {
			return _arrayLikeToArray4(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) ? _arrayLikeToArray4(r, a) : void 0;
	}
}
function _arrayLikeToArray4(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 _iterableToArrayLimit4(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 _arrayWithHoles4(r) {
	if (Array.isArray(r)) {
		return r;
	}
}
function Tile() {
	var self = this;
	Container.call(self);
	self.type = null;
	self.fixed = false;
	self.gridRow = -1;
	self.gridCol = -1;
	self.flow = false;
	self.startFlowTicks = 0;
	self.baseTint = 0xaaaaaa;
	self.baseTintLight = 0xaaaaaa;
	self.maxWaterSize = 260;
	self.flowSpeed = 12;
	self.pipeContainer = new Container();
	//self.addChild(self.pipeContainer);
	self.createStartPipe = 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.createEndPipe = 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.createStraightPipe = function (isVertical) {
		if (isVertical) {
			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'
			});
		} else {
			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.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.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.setType = function (type, row, col, fixed) {
		self.type = type;
		self.gridRow = row;
		self.gridCol = col;
		// Add base tile last so it appears under the pipes
		var baseTileAsset = fixed ? 'baseTile' : 'baseMobileTile';
		self.attachAsset(baseTileAsset, {
			anchorX: 0.5,
			anchorY: 0.5,
			width: tileSize,
			height: tileSize,
			tint: 0xFFFFFF
		});
		self.addChild(self.pipeContainer);
		// Clear existing pipe graphics
		while (self.pipeContainer.children.length > 0) {
			self.pipeContainer.removeChildAt(0);
		}
		// Create pipe graphics based on type
		switch (type) {
			case TileFormat.TYPES.START:
				self.createStartPipe();
				break;
			case TileFormat.TYPES.END:
				self.createEndPipe();
				break;
			case TileFormat.TYPES.VERTICAL:
				self.createStraightPipe(true);
				break;
			case TileFormat.TYPES.HORIZONTAL:
				self.createStraightPipe(false);
				break;
			case TileFormat.TYPES.CORNER:
				self.createCornerPipe();
				break;
			case TileFormat.TYPES.CROSS:
				self.createCrossPipe();
				break;
		}
	};
	self.getNextPositions = function (col, row, rotation, type, incomingDirection) {
		var positions = [];
		//var normalizedIncoming = (incomingDirection + Math.PI) % (2 * Math.PI);
		//var normalizedIncoming = getFlowDirection(puzzleManager.grid[row][col], incomingDirection);
		log("Getting next position for tile at", row, col, "type:", type, "rotation:", rotation, "incoming direction:", incomingDirection); //, "normalizedIncoming::", normalizedIncoming);
		//incomingDirection = normalizedIncoming;
		switch (type) {
			case TileFormat.TYPES.START:
				// Start pipe flows in direction of rotation
				var dx = -Math.sin(rotation);
				var dy = Math.cos(rotation);
				positions.push([col + Math.round(dx), row + Math.round(dy)]);
				log("START: flowing in direction dx:", dx, "dy:", dy);
				break;
			case TileFormat.TYPES.VERTICAL:
				// For vertical pipes, we flow in the opposite direction of incoming
				// If water comes from top (π/2), we flow down
				// If water comes from bottom (3π/2), we flow up
				if (Math.abs(incomingDirection - 3 * Math.PI / 2) < 0.1) {
					positions.push([col, row + 1]); // Flow down
					log("VERTICAL: incoming from top, flowing down");
				} else if (Math.abs(incomingDirection - Math.PI / 2) < 0.1) {
					positions.push([col, row - 1]); // Flow up
					log("VERTICAL: incoming from bottom, flowing up");
				} else if (incomingDirection === 0) {
					// Initial flow from start - flow down
					positions.push([col, row + 1]);
					log("VERTICAL: initial flow, going down");
				}
				break;
			case TileFormat.TYPES.HORIZONTAL:
				// For horizontal pipes, we flow in the opposite direction of incoming
				// If water comes from left (0), we flow right
				// If water comes from right (π), we flow left
				if (Math.abs(incomingDirection) < 0.1) {
					positions.push([col + 1, row]); // Flow right
					log("HORIZONTAL: incoming from left, flowing right");
				} else if (Math.abs(incomingDirection - Math.PI) < 0.1 || incomingDirection === 0) {
					positions.push([col - 1, row]); // Flow left
					log("HORIZONTAL: incoming from right, flowing left");
				} else {
					log("ERROR HORIZONTAL: incoming not matching!");
				}
				break;
			case TileFormat.TYPES.CORNER:
				var outgoingDirection;
				var normalizedRotation = (rotation + Math.PI / 2) % (2 * Math.PI);
				log("CORNER PIE with rotation:", rotation, " normalized rotation:", normalizedRotation, " with incoming:", incomingDirection);
				var acceptAngle1 = Math.sin(rotation) ? rotation + Math.PI / 2 : rotation;
				var acceptAngle2 = Math.sin(rotation) ? rotation + Math.PI : rotation - Math.PI / 2;
				log("Checking if incoming match pipe entry:", acceptAngle1, " or ", acceptAngle2, " vs ", incomingDirection);
				if (Math.abs(incomingDirection - acceptAngle1) < 0.1) {
					outgoingDirection = acceptAngle2 + Math.PI;
				}
				if (Math.abs(incomingDirection - acceptAngle2) < 0.1) {
					outgoingDirection = acceptAngle1 + Math.PI;
				}
				log("CORNER: turning from", incomingDirection, "to", outgoingDirection);
				//log("if so, turn 90° or -90° depending on incoming and rotation...");
				// For corner pipes, we turn 90° based on the incoming direction
				// If incoming matches pipe entry point, turn 90° clockwise
				/*
										if (Math.abs(incomingDirection - normalizedRotation) < 0.1) {
					outgoingDirection = (incomingDirection + Math.PI / 2) % (2 * Math.PI);
					log("CORNER: turning clockwise from", incomingDirection, "to", outgoingDirection);
				}
				// If incoming is 90° from pipe entry, turn 90° counterclockwise
				else if (Math.abs(incomingDirection - (normalizedRotation + Math.PI / 2) % (2 * Math.PI)) < 0.1) {
					outgoingDirection = (incomingDirection - Math.PI / 2 + 2 * Math.PI) % (2 * Math.PI);
					log("CORNER: turning counterclockwise from", incomingDirection, "to", outgoingDirection);
				}
										*/
				if (outgoingDirection !== undefined) {
					// Convert angle to grid movement
					var dx = Math.round(Math.cos(outgoingDirection));
					var dy = Math.round(Math.sin(outgoingDirection));
					positions.push([col + dx, row + dy]);
					log("CORNER: moving dx:", dx, "dy:", dy);
				} else {
					log("ERROR CORNER: incoming not matching!");
				}
				break;
			case TileFormat.TYPES.END:
				// End tile doesn't flow anywhere
				log("END: no next position");
				break;
		}
		log("Final next positions:", positions);
		return positions;
	};
	self.normalizeRotation = function (rotation) {
		while (rotation < 0) {
			rotation += 2 * Math.PI;
		}
		return rotation % (2 * Math.PI);
	};
	self.setRotation = function (rotation) {
		if (typeof rotation === 'number') {
			self.pipeContainer.rotation = self.normalizeRotation(rotation); //* Math.PI / 2 DBO
		} else {
			// Handle string rotations (legacy support)
			switch (rotation) {
				case 'up':
					self.pipeContainer.rotation = 0;
					break;
				case 'right':
					self.pipeContainer.rotation = Math.PI / 2;
					break;
				case 'down':
					self.pipeContainer.rotation = Math.PI;
					break;
				case 'left':
					self.pipeContainer.rotation = 3 * Math.PI / 2;
					break;
			}
		}
	};
	self.updatePosition = function (row, col) {
		self.gridRow = row;
		self.gridCol = col;
		//self.x = col * tileSize + gridBoard.x - gridBoard.width / 2;
		//self.y = row * tileSize + gridBoard.y - gridBoard.height / 2;
		self.x = col * tileSize + gridBoard.x - gridBoard.width / 2 + tileSize / 2 + boardOffsetX;
		self.y = row * tileSize + gridBoard.y - gridBoard.height / 2 + tileSize / 2 + boardOffsetY;
		log('Tile row,col:', row, col, 'Tile position:', self.x, self.y, 'Tile dimensions:', self.width, self.height, ' self:', self);
		//log('pipeContainer:', self.pipeContainer.x, self.pipeContainer.y, ' child:', self.pipeContainer.children[0].x, self.pipeContainer.children[0].y);
		//		log('gridBoard :', gridBoard.x, gridBoard.y, ' size:', gridBoard.width, gridBoard.height);
	};
	// Water flow update methods
	self.updateStartTile = function () {
		if (self.valve) {
			var rotationValue = (LK.ticks - self.startFlowTicks) * 0.1;
			self.valve.rotation = rotationValue;
			if (rotationValue >= Math.PI * 3) {
				self.flow = false;
			}
		}
	};
	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 + 100, game);
					waterDropInterval = LK.setInterval(function () {
						createWaterDrops(self.x, self.y + 100, game);
					}, 500 + Math.random() * 500);
				}
			}
		}
	};
	self.updateRegularPipe = function () {
		if (self.water) {
			var heightValue = (LK.ticks - self.startFlowTicks) * self.flowSpeed;
			if (heightValue < self.maxWaterSize) {
				log("updateRegularPipe ", self.water.dir, self.rotation, self.pipeContainer.rotation, self);
				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') {
					log("=> bt", self.rotation, self.pipeContainer.rotation, self);
					self.water.height = heightValue;
					self.water.y = 130;
					self.water.scaleY = -1;
				} else {
					self.water.height = heightValue;
				}
			} else {
				self.flow = false;
			}
		}
	};
	self.updateCornerPipe = function () {
		var progress = (LK.ticks - self.startFlowTicks) * self.flowSpeed;
		var thirdSize = self.maxWaterSize / 3;
		if (progress < thirdSize) {
			self.updateCornerPipeFirstPhase(progress, thirdSize);
		} else if (progress < thirdSize * 2) {
			self.updateCornerPipeSecondPhase(progress, thirdSize);
		} else {
			self.updateCornerPipeThirdPhase(progress, thirdSize);
		}
		if (progress >= self.maxWaterSize) {
			self.flow = false;
		}
	};
	self.updateCornerPipeFirstPhase = function (progress, thirdSize) {
		if (self.waterV) {
			self.waterV.visible = true;
			self.waterV.height = progress;
		}
	};
	self.updateCornerPipeSecondPhase = function (progress, thirdSize) {
		if (self.waterCorner) {
			self.waterCorner.visible = true;
			self.waterCorner.alpha = (progress - thirdSize) / thirdSize;
			var rotationProgress = (progress - thirdSize) / thirdSize;
			self.waterCorner.rotation = -Math.PI / 2 - rotationProgress * Math.PI / 2;
		}
		if (self.waterCornerCover) {
			self.waterCornerCover.visible = true;
			self.waterCornerCover.alpha = (progress - thirdSize) / thirdSize;
		}
	};
	self.updateCornerPipeThirdPhase = function (progress, thirdSize) {
		if (self.waterH) {
			self.waterH.visible = true;
			self.waterH.width = progress - thirdSize * 2;
			self.waterH.rotation = self.pipeContainer.rotation ? self.pipeContainer.rotation : 3 * Math.PI / 2;
		}
	};
	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 TileFormat.TYPES.START:
					self.updateStartTile();
					break;
				case TileFormat.TYPES.END:
					self.updateEndTile();
					break;
				case TileFormat.TYPES.CORNER:
					self.updateCornerPipe();
					break;
				default:
					self.updateRegularPipe();
					break;
			}
		}
		// Animate end tile fountain
		if (self.type === TileFormat.TYPES.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;
		}
	};
}
Tile.prototype = Object.create(Container.prototype);
function _slicedToArray3(r, e) {
	return _arrayWithHoles3(r) || _iterableToArrayLimit3(r, e) || _unsupportedIterableToArray3(r, e) || _nonIterableRest3();
}
function _nonIterableRest3() {
	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 _unsupportedIterableToArray3(r, a) {
	if (r) {
		if ("string" == typeof r) {
			return _arrayLikeToArray3(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) ? _arrayLikeToArray3(r, a) : void 0;
	}
}
function _arrayLikeToArray3(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 _iterableToArrayLimit3(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 _arrayWithHoles3(r) {
	if (Array.isArray(r)) {
		return r;
	}
}
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(game) {
	var self = this;
	self.game = game;
	self.grid = [];
	self.gridSize = 4;
	self.selectedTile = null;
	self.isComplete = false;
	self.waterFlowing = false;
	self.solutionPath = null; // Store the solution path for water flow
	self.reset = function () {
		// Clear grid
		for (var row = 0; row < self.gridSize; row++) {
			if (!self.grid[row]) {
				self.grid[row] = [];
			}
			for (var col = 0; col < self.gridSize; col++) {
				if (self.grid[row][col]) {
					self.grid[row][col].destroy();
				}
				self.grid[row][col] = null;
			}
		}
		// Reset state
		self.selectedTile = null;
		self.waterFlowing = false;
		// Clear water drops
		if (waterDropInterval) {
			LK.clearInterval(waterDropInterval);
			waterDropInterval = null;
		}
		// Reset water particles
		if (game.waterParticles) {
			for (var i = game.waterParticles.length - 1; i >= 0; i--) {
				var particle = game.waterParticles[i];
				if (particle && particle.parent) {
					particle.parent.removeChild(particle);
				}
			}
			game.waterParticles = [];
		}
		if (self.isComplete) {
			self.currentLevel++;
		} else {
			self.currentLevel = self.currentLevel || 1;
		}
		self.isComplete = false;
	};
	self.initPuzzle = function () {
		self.reset();
		var level = levelConfigs[self.currentLevel];
		// Initialize grid with tiles from level configuration
		for (var row = 0; row < self.gridSize; row++) {
			self.grid[row] = [];
			for (var col = 0; col < self.gridSize; col++) {
				var tileStr = level[row][col];
				var tile = createTile(tileStr, row, col);
				if (tile) {
					//gridBoard.addChild(tile);
					game.addChild(tile);
					self.grid[row][col] = tile;
				}
			}
		}
	};
	self.checkWinCondition = function () {
		log("=== Starting Win Condition Check ===");
		log("Grid state:");
		for (var row = 0; row < self.gridSize; row++) {
			var rowStr = [];
			for (var col = 0; col < self.gridSize; col++) {
				var tile = self.grid[row][col];
				if (tile) {
					var rotIndex = TileFormat.getRotationIndex(tile.normalizeRotation(tile.pipeContainer.rotation));
					rowStr.push("".concat(tile.fixed ? 'F' : 'M', "-").concat(tile.type, "-").concat(rotIndex));
				} else {
					rowStr.push('empty');
				}
			}
			log("Row ".concat(row, ":"), rowStr.join(' | '));
		}
		// Find start tile
		var startTile = null;
		var startRow = -1,
			startCol = -1;
		for (var row = 0; row < self.gridSize; row++) {
			for (var col = 0; col < self.gridSize; col++) {
				if (self.grid[row][col] && self.grid[row][col].type === TileFormat.TYPES.START) {
					startTile = self.grid[row][col];
					startRow = row;
					startCol = col;
					break;
				}
			}
			if (startTile) {
				break;
			}
		}
		if (!startTile) {
			log("No start tile found!");
			return false;
		}
		log("Found start tile at row:", startRow, "col:", startCol);
		var visited = new SimpleSet();
		var startDir = getFlowDirection(startTile);
		var toCheck = [[startRow, startCol, startDir]];
		var pathMap = {}; // Store the path for each visited position
		// Store start position
		pathMap[startRow + "," + startCol] = {
			row: startRow,
			col: startCol,
			flowDirection: null,
			// Start doesn't have incoming //startDir,
			prevKey: null
		};
		while (toCheck.length > 0) {
			var _toCheck$pop = toCheck.pop(),
				_toCheck$pop2 = _slicedToArray2(_toCheck$pop, 3),
				row = _toCheck$pop2[0],
				col = _toCheck$pop2[1],
				flowDirection = _toCheck$pop2[2];
			var key = "".concat(row, ",").concat(col);
			if (visited.has(key)) {
				continue;
			}
			visited.add(key);
			log("======================= Checking position - row:", row, "col:", col, "=========================");
			// Store current position in path map
			//pathMap.set(key, { row, col, flowDirection });
			// Check if coordinates are within grid
			if (row < 0 || row >= self.gridSize || col < 0 || col >= self.gridSize) {
				log("Position out of bounds");
				continue;
			}
			var currentTile = self.grid[row][col];
			if (!currentTile) {
				log("No tile at position");
				continue;
			}
			var normalizedRotation = currentTile.normalizeRotation(currentTile.pipeContainer.rotation);
			log("Checking tile:", currentTile.type, "rotation:", TileFormat.getRotationIndex(normalizedRotation));
			if (currentTile.type == TileFormat.TYPES.START) {
				flowDirection = null; // Start doesn't have incoming flow
			}
			var nextPositions = currentTile.getNextPositions(col, row, normalizedRotation, currentTile.type, flowDirection);
			log("Next positions to check:", nextPositions);
			var _iterator = _createForOfIteratorHelper(nextPositions),
				_step;
			try {
				for (_iterator.s(); !(_step = _iterator.n()).done;) {
					var nextPos = _step.value;
					var _nextPos = nextPos,
						_nextPos2 = _slicedToArray2(_nextPos, 2),
						nextCol = _nextPos2[0],
						nextRow = _nextPos2[1];
					log("Trying next position - row:", nextRow, "col:", nextCol);
					if (nextRow < 0 || nextRow >= self.gridSize || nextCol < 0 || nextCol >= self.gridSize) {
						log("Next position out of bounds");
						continue;
					}
					var nextTile = self.grid[nextRow][nextCol];
					if (!nextTile) {
						log("No tile at next position");
						continue;
					}
					var incomingDirection = Math.atan2(nextRow - row, col - nextCol);
					if (!canAcceptFlowFromDirection(nextTile, incomingDirection)) {
						log("Tile at row:", nextRow, "col:", nextCol, "cannot accept flow from direction:", incomingDirection);
						continue;
					}
					log("== OK. Prepare next tile with previous tile at ", incomingDirection, " (", nextRow, row, nextCol, col, ")");
					// Update nextTile.water.dir depending on incomingDirection
					if (nextTile.water) {
						log("Updating water direction for tile at row:", nextRow, "col:", nextCol);
						if (nextTile.type === TileFormat.TYPES.VERTICAL) {
							if (Math.abs(incomingDirection - Math.PI / 2) < 0.1) {
								nextTile.water.dir = 'tb'; // Top to Bottom
								log("Set water direction to 'tb' (Top to Bottom)");
							} else if (Math.abs(incomingDirection - 3 * Math.PI / 2) < 0.1) {
								nextTile.water.dir = 'bt'; // Bottom to Top
								log("Set water direction to 'bt' (Bottom to Top)");
							}
						} else if (nextTile.type === TileFormat.TYPES.HORIZONTAL) {
							if (Math.abs(incomingDirection - Math.PI) < 0.1) {
								nextTile.water.dir = 'lr'; // Left to Right
								log("Set water direction to 'lr' (Left to Right)");
							} else if (Math.abs(incomingDirection) < 0.1) {
								nextTile.water.dir = 'rl'; // Right to Left
								log("Set water direction to 'rl' (Right to Left)");
							}
						}
					}
					if (nextTile.type === TileFormat.TYPES.END) {
						log("Found path to end!");
						// Start reconstruction from the end position
						self.solutionPath = [];
						// Add all tiles from pathMap to solution path
						Object.keys(pathMap).forEach(function (key) {
							var _key$split$map = key.split(",").map(Number),
								_key$split$map2 = _slicedToArray5(_key$split$map, 2),
								row = _key$split$map2[0],
								col = _key$split$map2[1];
							var tile = self.grid[row][col];
							if (tile) {
								self.solutionPath.push({
									row: row,
									col: col,
									flowDirection: tile.normalizeRotation(tile.pipeContainer.rotation),
									tile: tile
								});
								log("Added tile from pathMap:", row, col);
							}
						});
						// Add the end tile
						self.solutionPath.push({
							row: nextRow,
							col: nextCol,
							flowDirection: nextTile.normalizeRotation(nextTile.pipeContainer.rotation),
							tile: nextTile
						});
						log("Added end tile:", nextRow, nextCol);
						log("Solution path reconstructed with", self.solutionPath.length, "tiles");
						return true;
					}
					//var nextFlowDirection = getFlowDirection(nextTile, incomingDirection);
					var nextFlowDirection = getFlowDirection(currentTile, flowDirection); // incomingDirection);
					var nextKey = nextRow + "," + nextCol;
					log("Set next tile ", nextKey, " flow dir:", nextFlowDirection);
					toCheck.push([nextRow, nextCol, nextFlowDirection]);
					pathMap[nextKey] = {
						row: nextRow,
						col: nextCol,
						flowDirection: nextFlowDirection,
						prevKey: key
					};
				}
			} catch (err) {
				_iterator.e(err);
			} finally {
				_iterator.f();
			}
		}
		log("No valid path found");
		return false;
	};
	self.selectTile = function (x, y) {
		if (!isPlaying) {
			return;
		}
		// Convert screen coordinates to grid coordinates
		var boardX = gridBoard.x - gridBoard.width / 2;
		var boardY = gridBoard.y - gridBoard.height / 2;
		var row = Math.floor((y - boardY) / tileSize);
		var col = Math.floor((x - boardX) / tileSize);
		log("Grid coordinates - row:", row, "col:", col);
		// Check if coordinates are within grid
		if (row >= 0 && row < this.gridSize && col >= 0 && col < this.gridSize) {
			var tile = this.grid[row][col];
			log("Clicked tile ", tile);
			// Check if tile exists, is mobile, and not start/end
			if (tile && !tile.fixed && tile.type !== TileFormat.TYPES.START && tile.type !== TileFormat.TYPES.END) {
				this.selectedTile = {
					row: row,
					col: col,
					tile: tile
				};
				log("Selected tile row:", this.selectedTile.row, "col:", this.selectedTile.col, this.selectedTile.tile);
				// Check possible moves
				this.checkPossibleMoves();
			}
		}
	};
	self.checkPossibleMoves = function () {
		if (!this.selectedTile) {
			return;
		}
		var row = this.selectedTile.row;
		var col = this.selectedTile.col;
		var possibleMoves = [];
		// Check each direction
		// Right
		if (col < this.gridSize - 1 && !this.grid[row][col + 1]) {
			possibleMoves.push('right');
		}
		// Left
		if (col > 0 && !this.grid[row][col - 1]) {
			possibleMoves.push('left');
		}
		// Down
		if (row < this.gridSize - 1 && !this.grid[row + 1][col]) {
			possibleMoves.push('down');
		}
		// Up
		if (row > 0 && !this.grid[row - 1][col]) {
			possibleMoves.push('up');
		}
		this.selectedTile.possibleMoves = possibleMoves;
	};
	self.moveTile = function (direction) {
		if (!isPlaying || !this.selectedTile || !this.selectedTile.possibleMoves.includes(direction)) {
			LK.getSound('tileBlocked').play();
			return;
		}
		var oldRow = this.selectedTile.row;
		var oldCol = this.selectedTile.col;
		var newRow = oldRow;
		var newCol = oldCol;
		// Calculate new position
		switch (direction) {
			case 'right':
				newCol++;
				break;
			case 'left':
				newCol--;
				break;
			case 'down':
				newRow++;
				break;
			case 'up':
				newRow--;
				break;
		}
		// Play tile slide sound
		LK.getSound('tileSlide').play();
		// Move tile
		var movingTile = this.grid[oldRow][oldCol];
		this.grid[oldRow][oldCol] = null;
		this.grid[newRow][newCol] = movingTile;
		// Update tile position
		movingTile.updatePosition(newRow, newCol);
		// Clear selection
		this.selectedTile = null;
		// Check if puzzle is solved
		if (this.checkWinCondition()) {
			this.isComplete = true;
			this.startWaterFlow();
			LK.getSound('levelWon').play();
			isPlaying = false;
		}
	};
	self.startWaterFlow = function () {
		if (!self.solutionPath || self.solutionPath.length === 0) {
			log("No solution path available!");
			return false;
		}
		// Reset any existing flow states
		for (var row = 0; row < self.gridSize; row++) {
			for (var col = 0; col < self.gridSize; col++) {
				if (self.grid[row][col]) {
					self.grid[row][col].flow = false;
					if (self.grid[row][col].water) {
						self.grid[row][col].water.visible = false;
					}
					if (self.grid[row][col].waterV) {
						self.grid[row][col].waterV.visible = false;
					}
					if (self.grid[row][col].waterH) {
						self.grid[row][col].waterH.visible = false;
					}
				}
			}
		}
		self.waterFlowing = true;
		log("Starting water flow through solution path:", self.solutionPath.length, "tiles");
		var currentIndex = 0;
		function animateNextTile() {
			if (currentIndex >= self.solutionPath.length) {
				// End of path reached - start end game sequence
				LK.setTimeout(function () {
					animateSoil();
				}, 1000);
				return;
			}
			var currentTile = self.solutionPath[currentIndex].tile;
			currentTile.flow = true;
			// Show appropriate water animation based on tile type
			if (currentTile.water) {
				currentTile.water.visible = true;
			}
			if (currentTile.waterV) {
				currentTile.waterV.visible = true;
			}
			if (currentTile.waterH) {
				currentTile.waterH.visible = true;
				// Set water flow direction based on path
				if (currentIndex > 0) {
					var prevTile = self.solutionPath[currentIndex - 1].tile;
					currentTile.waterH.scaleX = prevTile.gridCol < currentTile.gridCol ? 1 : -1;
				}
			}
			// Special handling for end tile
			if (currentTile.type === TileFormat.TYPES.END) {
				createWaterDrops(currentTile.x, currentTile.y + 100, game);
			}
			currentIndex++;
			LK.setTimeout(animateNextTile, 300);
		}
		// Start the animation
		animateNextTile();
		return true;
	};
	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;
// Initialize the game
initializeGame();
/**** 
* Helper Functions
****/ 
function getFlowDirection(tile, incomingDirection) {
	//var rotation = tile.normalizeRotation(tile.pipeContainer.rotation);
	var flowDir; //(incomingDirection + Math.PI) % (2 * Math.PI);
	log("Get Output flow dir:", tile.type, "Rotation:", tile.pipeContainer.rotation, "incomingDirection:", incomingDirection); //, "Normalized incoming:", rotation);
	switch (tile.type) {
		case TileFormat.TYPES.START:
			flowDir = Math.PI / 2 * (Math.sin(tile.pipeContainer.rotation) - Math.cos(tile.pipeContainer.rotation));
			break;
		case TileFormat.TYPES.CORNER:
			if (Math.abs(tile.pipeContainer.rotation - incomingDirection) < 0.1 || Math.abs(tile.pipeContainer.rotation + Math.PI - incomingDirection) < 0.1) {
				flowDir = incomingDirection + Math.PI / 2;
			} else {
				flowDir = incomingDirection - Math.PI / 2;
			}
			break;
		default:
			flowDir = incomingDirection; // + Math.PI; // From side to oposite side
			break;
	}
	flowDir = flowDir % (2 * Math.PI);
	log("Returned output flow direction:", flowDir);
	return flowDir;
}
function canAcceptFlowFromDirection(tile, incomingDirection) {
	var normalizedIncoming = (incomingDirection + Math.PI) % (2 * Math.PI);
	var tileRotation = tile.normalizeRotation(tile.pipeContainer.rotation);
	log("Checking if tile can accept flow. Tile type:", tile.type, "Tile rotation:", tileRotation, " previous tile at:", incomingDirection, " => Incoming flow dir:", normalizedIncoming);
	var angleDiff = null;
	switch (tile.type) {
		case TileFormat.TYPES.START:
			log("No => Tile type is START. Cannot accept flow.");
			return false;
		case TileFormat.TYPES.END:
			angleDiff = (normalizedIncoming - tileRotation - Math.PI / 2) % (2 * Math.PI);
			log("Yes => Tile type is END.");
			return angleDiff < 0.1;
		case TileFormat.TYPES.VERTICAL:
			angleDiff = Math.abs(normalizedIncoming - Math.PI / 2) % (2 * Math.PI);
			log("Yes => Tile type is VERTICAL");
			return angleDiff < 0.1 || Math.abs(angleDiff - Math.PI) < 0.1;
		case TileFormat.TYPES.HORIZONTAL:
			angleDiff = normalizedIncoming % (2 * Math.PI);
			log("Yes => Tile type is HORIZONTAL");
			return angleDiff < 0.1 || Math.abs(angleDiff - Math.PI) < 0.1;
		case TileFormat.TYPES.CORNER:
			angleDiff = (normalizedIncoming - tileRotation - Math.PI) % (2 * Math.PI);
			log("Yes => Tile type is CORNER.");
			return angleDiff < 0.1 || Math.abs(angleDiff - Math.PI / 2) < 0.1;
		default:
			log("No => Tile type is unknown. Cannot accept flow.");
			return false;
	}
}
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 && 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(game);
	// 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
	// Define a simple tween function to animate the logo
	function simpleTween(target, properties, config) {
		var startValues = {};
		var endValues = properties;
		var duration = config.duration || 1000;
		var easing = config.easing || function (t) {
			return t;
		};
		var startTime = Date.now();
		for (var prop in endValues) {
			startValues[prop] = target[prop];
		}
		function animate() {
			var currentTime = Date.now();
			var time = Math.min(1, (currentTime - startTime) / duration);
			var easedTime = easing(time);
			for (var prop in endValues) {
				target[prop] = startValues[prop] + (endValues[prop] - startValues[prop]) * easedTime;
			}
			if (time < 1) {
				LK.setTimeout(animate, 16); // Approximately 60 FPS
			} else if (config.onFinish) {
				config.onFinish();
			}
		}
		animate();
	}
	// Use the simpleTween function to animate the logo
	simpleTween(logo, {
		x: 2048 / 2,
		// Center horizontally
		y: 2732 / 2 - 50 // Center vertically with offset
	}, {
		duration: 1000,
		easing: function easing(t) {
			return t * (2 - t);
		} // Simple ease-out 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.initPuzzle();
	}
	// 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.grid.forEach(function (row) {
			row.forEach(function (tile) {
				if (tile) {
					tile.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.grid.forEach(function (row) {
			row.forEach(function (tile) {
				if (tile) {
					tile.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();
		}
	}
}
// Tile Format Utilities
var TileFormat = {
	// Constants
	FIXED: 'F',
	MOBILE: 'M',
	TYPES: {
		START: 'S',
		END: 'E',
		VERTICAL: 'V',
		HORIZONTAL: 'H',
		CORNER: 'C',
		CROSS: 'X',
		BLANK: 'B'
	},
	// Parse a tile string into its components
	parse: function parse(tileStr) {
		if (!tileStr || tileStr === "") {
			return null;
		}
		var parts = tileStr.split('-');
		if (parts.length !== 3) {
			console.error("Invalid tile format:", tileStr);
			return null;
		}
		return {
			fixed: parts[0] === this.FIXED,
			type: parts[1],
			rotation: parseInt(parts[2]) * (Math.PI / 2) // Convert to radians
		};
	},
	// Create a tile string from components
	create: function create(fixed, type, rotationIndex) {
		return "".concat(fixed ? this.FIXED : this.MOBILE, "-").concat(type, "-").concat(rotationIndex);
	},
	// Convert old tile type to new format
	convertOldType: function convertOldType(oldType) {
		switch (oldType) {
			case 'start':
				return this.TYPES.START;
			case 'end':
				return this.TYPES.END;
			case 'straightPipeV':
				return this.TYPES.VERTICAL;
			case 'straightPipeH':
				return this.TYPES.HORIZONTAL;
			case 'cornerPipe':
				return this.TYPES.CORNER;
			default:
				return this.TYPES.BLANK;
		}
	},
	// Convert rotation in radians to index (0-3)
	getRotationIndex: function getRotationIndex(radians) {
		if (typeof radians !== 'number') {
			return 0;
		}
		return Math.round(radians % (2 * Math.PI) / (Math.PI / 2)) % 4;
	},
	// Convert old level format to new format
	convertOldLevel: function convertOldLevel(oldLevel) {
		var newGrid = [];
		for (var row = 0; row < 4; row++) {
			newGrid[row] = [];
			for (var col = 0; col < 4; col++) {
				var oldTile = oldLevel.tiles[row][col];
				if (!oldTile) {
					newGrid[row][col] = "";
					continue;
				}
				var isFixed = oldLevel.fixedTiles && oldLevel.fixedTiles.includes("".concat(row, ",").concat(col));
				var type = this.convertOldType(oldTile);
				var rotation = oldLevel.rotations["".concat(row, ",").concat(col)] || 'up';
				var rotationIndex = this.getRotationIndex(rotation);
				newGrid[row][col] = this.create(isFixed, type, rotationIndex);
			}
		}
		return newGrid;
	}
};
// Update tile creation to use new format
function createTile(tileStr, row, col) {
	if (!tileStr || tileStr === "") {
		return null;
	}
	var tileData = TileFormat.parse(tileStr);
	if (!tileData) {
		return null;
	}
	var tile = new Tile();
	tile.type = tileData.type;
	tile.fixed = tileData.fixed;
	tile.gridRow = row;
	tile.gridCol = col;
	// Create base tile graphics
	tile.baseTile = tile.attachAsset(tile.fixed ? 'baseTile' : 'baseMobileTile', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: tileSize,
		height: tileSize,
		tint: 0xFFFFFF
	});
	// Set type and create pipe graphics
	tile.setType(tileData.type, row, col, tileData.fixed);
	// Set initial rotation
	tile.setRotation(tileData.rotation);
	// Set position
	tile.updatePosition(row, col);
	return tile;
}
var levelConfigs = {
	1: [["F-S-0", "", "", ""], ["F-V-0", "", "", ""], ["F-V-0", "", "M-H-0", ""], ["F-C-1", "F-H-0", "", "F-E-1"]],
	2: [["", "M-V-0", "F-E-0", ""], ["", "M-C-0", "F-V-0", ""], ["", "", "", ""], ["F-S-3", "F-H-0", "", ""]],
	3: [["F-C-2", "", "", "M-V-0"], ["F-C-1", "F-E-1", "", "F-H-0"], ["", "", "", ""], ["", "", "F-V-0", "F-S-1"]]
};

===================================================================
--- original.js
+++ change.js
@@ -577,12 +577,12 @@
 		}
 	};
 	self.getNextPositions = function (col, row, rotation, type, incomingDirection) {
 		var positions = [];
-		var normalizedIncoming = incomingDirection; //(incomingDirection + Math.PI) % (2 * Math.PI);
+		//var normalizedIncoming = (incomingDirection + Math.PI) % (2 * Math.PI);
 		//var normalizedIncoming = getFlowDirection(puzzleManager.grid[row][col], incomingDirection);
-		log("Getting next position for tile at", row, col, "type:", type, "rotation:", rotation, "incoming direction:", incomingDirection, "normalizedIncoming::", normalizedIncoming);
-		incomingDirection = normalizedIncoming;
+		log("Getting next position for tile at", row, col, "type:", type, "rotation:", rotation, "incoming direction:", incomingDirection); //, "normalizedIncoming::", normalizedIncoming);
+		//incomingDirection = normalizedIncoming;
 		switch (type) {
 			case TileFormat.TYPES.START:
 				// Start pipe flows in direction of rotation
 				var dx = -Math.sin(rotation);
@@ -609,12 +609,12 @@
 			case TileFormat.TYPES.HORIZONTAL:
 				// For horizontal pipes, we flow in the opposite direction of incoming
 				// If water comes from left (0), we flow right
 				// If water comes from right (π), we flow left
-				if (Math.abs(incomingDirection - Math.PI) < 0.1) {
+				if (Math.abs(incomingDirection) < 0.1) {
 					positions.push([col + 1, row]); // Flow right
 					log("HORIZONTAL: incoming from left, flowing right");
-				} else if (Math.abs(incomingDirection) < 0.1 || incomingDirection === 0) {
+				} else if (Math.abs(incomingDirection - Math.PI) < 0.1 || incomingDirection === 0) {
 					positions.push([col - 1, row]); // Flow left
 					log("HORIZONTAL: incoming from right, flowing left");
 				} else {
 					log("ERROR HORIZONTAL: incoming not matching!");
@@ -1180,13 +1180,14 @@
 					if (!nextTile) {
 						log("No tile at next position");
 						continue;
 					}
-					var incomingDirection = Math.atan2(nextRow - row, nextCol - col);
+					var incomingDirection = Math.atan2(nextRow - row, col - nextCol);
 					if (!canAcceptFlowFromDirection(nextTile, incomingDirection)) {
 						log("Tile at row:", nextRow, "col:", nextCol, "cannot accept flow from direction:", incomingDirection);
 						continue;
 					}
+					log("== OK. Prepare next tile with previous tile at ", incomingDirection, " (", nextRow, row, nextCol, col, ")");
 					// Update nextTile.water.dir depending on incomingDirection
 					if (nextTile.water) {
 						log("Updating water direction for tile at row:", nextRow, "col:", nextCol);
 						if (nextTile.type === TileFormat.TYPES.VERTICAL) {
@@ -1197,12 +1198,12 @@
 								nextTile.water.dir = 'bt'; // Bottom to Top
 								log("Set water direction to 'bt' (Bottom to Top)");
 							}
 						} else if (nextTile.type === TileFormat.TYPES.HORIZONTAL) {
-							if (Math.abs(incomingDirection) < 0.1) {
+							if (Math.abs(incomingDirection - Math.PI) < 0.1) {
 								nextTile.water.dir = 'lr'; // Left to Right
 								log("Set water direction to 'lr' (Left to Right)");
-							} else if (Math.abs(incomingDirection - Math.PI) < 0.1) {
+							} else if (Math.abs(incomingDirection) < 0.1) {
 								nextTile.water.dir = 'rl'; // Right to Left
 								log("Set water direction to 'rl' (Right to Left)");
 							}
 						}
@@ -1239,11 +1240,11 @@
 						log("Solution path reconstructed with", self.solutionPath.length, "tiles");
 						return true;
 					}
 					//var nextFlowDirection = getFlowDirection(nextTile, incomingDirection);
-					log("Next incoming:", incomingDirection, "get next:", getFlowDirection(nextTile, incomingDirection));
-					var nextFlowDirection = incomingDirection;
+					var nextFlowDirection = getFlowDirection(currentTile, flowDirection); // incomingDirection);
 					var nextKey = nextRow + "," + nextCol;
+					log("Set next tile ", nextKey, " flow dir:", nextFlowDirection);
 					toCheck.push([nextRow, nextCol, nextFlowDirection]);
 					pathMap[nextKey] = {
 						row: nextRow,
 						col: nextCol,
@@ -1462,49 +1463,54 @@
 * Helper Functions
 ****/ 
 function getFlowDirection(tile, incomingDirection) {
 	//var rotation = tile.normalizeRotation(tile.pipeContainer.rotation);
-	var rotation = (incomingDirection + Math.PI) % (2 * Math.PI);
-	log("Tile type:", tile.type, "Rotation:", tile.pipeContainer.rotation, "incomingDirection:", incomingDirection, "Normalized incoming:", rotation);
+	var flowDir; //(incomingDirection + Math.PI) % (2 * Math.PI);
+	log("Get Output flow dir:", tile.type, "Rotation:", tile.pipeContainer.rotation, "incomingDirection:", incomingDirection); //, "Normalized incoming:", rotation);
 	switch (tile.type) {
 		case TileFormat.TYPES.START:
-			rotation = tile.pipeContainer.rotation + 3 * Math.PI / 2;
+			flowDir = Math.PI / 2 * (Math.sin(tile.pipeContainer.rotation) - Math.cos(tile.pipeContainer.rotation));
 			break;
-		//case TileFormat.TYPES.CORNER:
-		//rotation = (rotation + Math.PI / 2) % (2 * Math.PI);
-		//	break;
+		case TileFormat.TYPES.CORNER:
+			if (Math.abs(tile.pipeContainer.rotation - incomingDirection) < 0.1 || Math.abs(tile.pipeContainer.rotation + Math.PI - incomingDirection) < 0.1) {
+				flowDir = incomingDirection + Math.PI / 2;
+			} else {
+				flowDir = incomingDirection - Math.PI / 2;
+			}
+			break;
 		default:
-			rotation = rotation;
+			flowDir = incomingDirection; // + Math.PI; // From side to oposite side
 			break;
 	}
-	rotation = rotation % (2 * Math.PI);
-	log("Returned flow direction:", rotation);
-	return rotation;
+	flowDir = flowDir % (2 * Math.PI);
+	log("Returned output flow direction:", flowDir);
+	return flowDir;
 }
 function canAcceptFlowFromDirection(tile, incomingDirection) {
 	var normalizedIncoming = (incomingDirection + Math.PI) % (2 * Math.PI);
 	var tileRotation = tile.normalizeRotation(tile.pipeContainer.rotation);
-	log("Checking if tile can accept flow. Tile type:", tile.type, "Incoming direction:", incomingDirection, "Normalized incoming:", normalizedIncoming, "Tile rotation:", tileRotation);
+	log("Checking if tile can accept flow. Tile type:", tile.type, "Tile rotation:", tileRotation, " previous tile at:", incomingDirection, " => Incoming flow dir:", normalizedIncoming);
+	var angleDiff = null;
 	switch (tile.type) {
 		case TileFormat.TYPES.START:
 			log("No => Tile type is START. Cannot accept flow.");
 			return false;
 		case TileFormat.TYPES.END:
-			var angle = (normalizedIncoming - tileRotation - Math.PI / 2) % (2 * Math.PI);
-			log("Yes => Tile type is END. Calculated angle:", angle);
-			return angle < 0.1;
+			angleDiff = (normalizedIncoming - tileRotation - Math.PI / 2) % (2 * Math.PI);
+			log("Yes => Tile type is END.");
+			return angleDiff < 0.1;
 		case TileFormat.TYPES.VERTICAL:
-			var angle = Math.abs(normalizedIncoming - Math.PI / 2) % (2 * Math.PI);
-			log("Yes => Tile type is VERTICAL. Calculated angle:", angle);
-			return angle < 0.1 || Math.abs(angle - Math.PI) < 0.1;
+			angleDiff = Math.abs(normalizedIncoming - Math.PI / 2) % (2 * Math.PI);
+			log("Yes => Tile type is VERTICAL");
+			return angleDiff < 0.1 || Math.abs(angleDiff - Math.PI) < 0.1;
 		case TileFormat.TYPES.HORIZONTAL:
-			var angle = normalizedIncoming % (2 * Math.PI);
-			log("Yes => Tile type is HORIZONTAL. Calculated angle:", angle);
-			return angle < 0.1 || Math.abs(angle - Math.PI) < 0.1;
+			angleDiff = normalizedIncoming % (2 * Math.PI);
+			log("Yes => Tile type is HORIZONTAL");
+			return angleDiff < 0.1 || Math.abs(angleDiff - Math.PI) < 0.1;
 		case TileFormat.TYPES.CORNER:
-			var angle = (normalizedIncoming - tileRotation - Math.PI) % (2 * Math.PI);
-			log("Yes => Tile type is CORNER. Calculated angle:", angle);
-			return angle < 0.1 || Math.abs(angle - Math.PI / 2) < 0.1;
+			angleDiff = (normalizedIncoming - tileRotation - Math.PI) % (2 * Math.PI);
+			log("Yes => Tile type is CORNER.");
+			return angleDiff < 0.1 || Math.abs(angleDiff - Math.PI / 2) < 0.1;
 		default:
 			log("No => Tile type is unknown. Cannot accept flow.");
 			return false;
 	}