/**** 
* Classes
****/
var GraphSegment = Container.expand(function () {
	var self = Container.call(this);
	self.updateSlide = function () {
		if (moveSegments) {
			self.x -= slideAmount;
			self.distanceToSlide -= slideAmount;
			if (self.distanceToSlide <= 0) {
				self.distanceToSlide = null;
			}
		}
	};
	var segmentGraphics = self.createAsset('segment', 'Graph Segment', 0, 0.5);
	// Function to slide the segment to the left
});
// ValueIndicator class to represent the current value of the stock on the graph
// Player class to represent the player's portfolio
var Player = Container.expand(function () {
	var self = Container.call(this);
	self.balance = 100; // Start with $100
	self.stocks = {}; // Object to hold stocks and quantities
	self.buyStock = function (stock, quantity) {
		var cost = stock.getPrice() * quantity;
		if (self.balance >= cost) {
			self.balance -= cost;
			if (!self.stocks[stock]) {
				self.stocks[stock] = 0;
			}
			self.stocks[stock] += quantity;
		}
	};
	self.sellStock = function (stock, quantity) {
		if (self.stocks[stock] && self.stocks[stock] >= quantity) {
			self.balance += stock.getPrice() * quantity;
			self.stocks[stock] -= quantity;
			if (self.stocks[stock] === 0) {
				delete self.stocks[stock];
			}
		}
	};
	self.getBalance = function () {
		return self.balance;
	};
	self.getPortfolio = function () {
		return self.stocks;
	};
});

/**** 
* Initialize Game
****/
var game = new LK.Game({
	// No need to set backgroundColor since we are adding a background asset
});

/**** 
* Game Code
****/
var slideAmount = 4.0;
// Create and add background asset
var running = false;
var moveSegments = false;
var background = game.addChild(LK.getAsset('background', 'Game background', 0.5, 0.5));
background.x = 1024; // Center x position
background.y = 2732 - background.height / 2; // Center y position
// Initialize game elements
var player = new Player();
var stocks = [];
// Initialize stock values history with the first value of $10
var stockValuesHistory = [10];
// Declare a global array to store graph segments
var graphSegments = [];
// Add 10 other random stock values
for (var i = 0; i < 100; i++) {
	stockValuesHistory.push(Math.floor(Math.random() * 100) + 1);
}
var graphPoints = [];
var graphWidth = game.width;
var segmentWidth = graphWidth / 6; //; / stockValuesHistory.length;
var x, y;
// Compute the coordinates for the graph based on stockValuesHistory
for (var i = 0; i < stockValuesHistory.length; i++) {
	x = segmentWidth * i;
	y = game.height / 2 - stockValuesHistory[i] * 10; // Scale the stock value for display
	graphPoints.push({
		x: x,
		y: y
	});
}
function addNewStockValues() {
	if (moveSegments) {
		var newStockValue = Math.floor(Math.random() * 100) + 1;
		stockValuesHistory.push(newStockValue);
		var totalSlideDistance = graphSegments.length > 0 ? graphSegments[0].startX - graphSegments[0].x : 0;
		var newGraphPoint = {
			x: graphPoints[graphPoints.length - 1].x + segmentWidth - totalSlideDistance,
			y: game.height / 2 - newStockValue * 10
		};
		graphPoints.push(newGraphPoint);
		drawSegment(game, graphPoints[graphPoints.length - 2].x, graphPoints[graphPoints.length - 2].y, newGraphPoint.x, newGraphPoint.y, 0.5);
	}
	LK.setTimeout(addNewStockValues, 1000); // Continue adding new values every second
}
// Start the continuous addition of new stock values and graph points
addNewStockValues();
var stockDisplay = []; // Array to hold stock display elements
var balanceText = new Text2('Balance: $' + player.getBalance(), {
	size: 50,
	fill: "#ffffff"
});
balanceText.anchor.set(0.5, 0);
LK.gui.top.addChild(balanceText);
// Update the player's balance display
function updateBalanceDisplay() {
	balanceText.setText('Balance: $' + player.getBalance().toFixed(2));
}
// Function to handle buying stocks
function buyStock(stock) {
	player.buyStock(stock, 1); // Buy 1 stock for simplicity
	updateBalanceDisplay();
}
// Function to handle selling stocks
function sellStock(stock) {
	player.sellStock(stock, 1); // Sell 1 stock for simplicity
	updateBalanceDisplay();
}
// Main game loop
LK.on('tick', function () {
	if (!running) {
		return;
	}
	// Update slide for each graph segment
	graphSegments.forEach(function (segment) {
		segment.updateSlide();
	});
	// Check for game over conditions (e.g., player runs out of money)
	if (player.getBalance() <= 0) {
		LK.effects.flashScreen(0xff0000, 1000);
		LK.showGameOver();
	}
});
function drawSegment(gameRef, x1, y1, x2, y2, delay, callback) {
	var segment = gameRef.addChild(new GraphSegment());
	// Add the new segment to the global graphSegments array
	graphSegments.push(segment);
	segment.x = x1;
	segment.y = y1;
	segment.width = 1;
	segment.height = 20;
	var deltaX = x2 - x1;
	var deltaY = y2 - y1;
	if (deltaX === 0 && deltaY === 0) {
		console.error('Invalid deltaX and deltaY for rotation calculation.');
		return;
	}
	var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
	segment.rotation = Math.atan2(deltaY, deltaX);
	var startTime = Date.now();
	var endTime = startTime + delay * 1000;
	var updateWidth = function updateWidth() {
		if (!running) {
			return;
		}
		var currentTime = Date.now();
		var timeElapsed = currentTime - startTime;
		var newWidth = Math.min(timeElapsed / (delay * 1000) * distance, distance);
		segment.width = newWidth;
		if (currentTime < endTime) {
			LK.setTimeout(updateWidth, 16);
		} else {
			console.log("Past center ? " + (segment.x + segment.width / 2 >= game.width / 2));
			if (!moveSegments && segment.x + segment.width / 2 >= game.width * 0.5) {
				moveSegments = true;
			}
			if (typeof callback === 'function') {
				callback();
			}
		}
	};
	updateWidth();
}
function drawGraph(gameRef, points) {
	console.log('Starting to draw graph');
	if (points.length < 2) {
		console.log('Not enough points to draw a graph segment.');
		return;
	} // Need at least two points to draw a segment
	function drawNextSegment(index) {
		if (index < points.length - 1) {
			var pointA = points[index];
			var lastSegment = graphSegments.length > 0 ? graphSegments[graphSegments.length - 1] : null;
			if (!lastSegment || typeof lastSegment.rotation !== 'number') {
				console.error('Invalid lastSegment or rotation is not a number.');
				return;
			}
			console.log('lastSegment ' + (graphSegments.length - 1), lastSegment);
			var lastSegmentEndX = lastSegment.x + Math.cos(lastSegment.rotation) * lastSegment.width;
			pointA.x = lastSegment ? lastSegmentEndX : 0;
			var pointB = points[index + 1];
			/*if (moveSegments) {
			var lastSegmentEndX = graphSegments.length > 0 ? graphSegments[graphSegments.length - 1].x + graphSegments[graphSegments.length - 1].width : 0;
			pointA.x = lastSegmentEndX;
			pointB.x = pointA.x + segmentWidth;
			}*/
			console.log('Drawing segment from', {
				x: Math.round(pointA.x),
				y: Math.round(1366 - pointA.y)
			}, 'to', {
				x: Math.round(pointB.x),
				y: Math.round(1366 - pointB.y)
			});
			var delay = 1; // Reduce delay if segments are moving
			drawSegment(gameRef, pointA.x, pointA.y, pointB.x, pointB.y, delay, function () {
				/*console.log('Segment drawn from', {
				x: Math.round(pointA.x),
				y: Math.round(pointA.y)
				}, 'to', {
				x: Math.round(pointB.x),
				y: Math.round(pointB.y)
				});*/
				drawNextSegment(index + 1);
			});
		} else {
			console.log('Finished drawing graph');
		}
	}
	drawNextSegment(0);
}
function startGame() {
	// Initialize and start the game logic here
	running = true;
	// Pass the series of points to drawGraph
	drawGraph(game, graphPoints);
	// Add ValueIndicator to the game and update its position
}
LK.setTimeout(function () {
	startGame();
}, 1000);

===================================================================
--- original.js
+++ change.js
@@ -150,8 +150,12 @@
 	segment.width = 1;
 	segment.height = 20;
 	var deltaX = x2 - x1;
 	var deltaY = y2 - y1;
+	if (deltaX === 0 && deltaY === 0) {
+		console.error('Invalid deltaX and deltaY for rotation calculation.');
+		return;
+	}
 	var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
 	segment.rotation = Math.atan2(deltaY, deltaX);
 	var startTime = Date.now();
 	var endTime = startTime + delay * 1000;
@@ -186,10 +190,14 @@
 	function drawNextSegment(index) {
 		if (index < points.length - 1) {
 			var pointA = points[index];
 			var lastSegment = graphSegments.length > 0 ? graphSegments[graphSegments.length - 1] : null;
+			if (!lastSegment || typeof lastSegment.rotation !== 'number') {
+				console.error('Invalid lastSegment or rotation is not a number.');
+				return;
+			}
 			console.log('lastSegment ' + (graphSegments.length - 1), lastSegment);
-			var lastSegmentEndX = lastSegment ? lastSegment.x + Math.cos(lastSegment.rotation) * lastSegment.width : 0;
+			var lastSegmentEndX = lastSegment.x + Math.cos(lastSegment.rotation) * lastSegment.width;
 			pointA.x = lastSegment ? lastSegmentEndX : 0;
 			var pointB = points[index + 1];
 			/*if (moveSegments) {
 			var lastSegmentEndX = graphSegments.length > 0 ? graphSegments[graphSegments.length - 1].x + graphSegments[graphSegments.length - 1].width : 0;