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

/**** 
* Classes
****/ 
var LightSystem = Container.expand(function () {
	var self = Container.call(this);
	var lightGraphics = self.attachAsset('lightIndicator', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.changeToGreen = function () {
		lightGraphics.tint = 0x00ff00;
		LK.effects.flashScreen(0x00ff00, 300);
		LK.getSound('lightChange').play();
	};
	self.changeToRed = function () {
		lightGraphics.tint = 0xff0000;
		LK.effects.flashScreen(0xff0000, 300);
		LK.getSound('lightChange').play();
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = 0;
	self.maxSpeed = 3;
	self.isMoving = false;
	self.startX = 150;
	self.update = function () {
		if (self.isMoving && isGreenLight) {
			self.x += self.speed;
		}
		// Keep player within bounds
		if (self.x > finishX) {
			self.x = finishX;
			// Player wins!
			LK.showYouWin();
		}
	};
	self.reset = function () {
		self.x = self.startX;
		self.speed = 0;
		self.isMoving = false;
		LK.effects.flashObject(self, 0xff0000, 500);
		LK.getSound('reset').play();
	};
	self.startRunning = function () {
		if (isGreenLight) {
			self.isMoving = true;
			self.speed = self.maxSpeed;
		}
	};
	self.stopRunning = function () {
		self.isMoving = false;
		self.speed = 0;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb
});

/**** 
* Game Code
****/ 
// Game variables
var isGreenLight = true;
var lightTimer = 0;
var greenLightDuration = 180; // 3 seconds at 60fps
var redLightDuration = 120; // 2 seconds at 60fps
var currentLightDuration = greenLightDuration;
var finishX = 1900;
var gameTimer = 0;
var gameTimeLimit = 5400; // 1:30 minutes at 60fps (90 seconds * 60)
// Create floor
var floor = game.addChild(LK.getAsset('floor', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	width: 2048,
	height: 2732
}));
// Create start line
var startLine = game.addChild(LK.getAsset('startLine', {
	anchorX: 0,
	anchorY: 0,
	x: 150,
	y: 0,
	width: 20,
	height: 2732
}));
// Create finish line
var finishLine = game.addChild(LK.getAsset('finishLine', {
	anchorX: 0,
	anchorY: 0,
	x: finishX,
	y: 0,
	width: 20,
	height: 2732
}));
// Create player
var player = game.addChild(new Player());
player.x = player.startX;
player.y = 2600;
// Create light system
var lightSystem = game.addChild(new LightSystem());
lightSystem.x = 1024;
lightSystem.y = 300;
// Create instruction text
var instructionText = new Text2('TAP AND HOLD TO RUN DURING GREEN LIGHT', {
	size: 60,
	fill: 0xFFFFFF
});
instructionText.anchor.set(0.5, 0.5);
instructionText.x = 1024;
instructionText.y = 600;
game.addChild(instructionText);
// Create light status text
var lightStatusText = new Text2('GREEN LIGHT - GO!', {
	size: 80,
	fill: 0x00FF00
});
lightStatusText.anchor.set(0.5, 0.5);
lightStatusText.x = 1024;
lightStatusText.y = 500;
game.addChild(lightStatusText);
// Create timer display text
var timerText = new Text2('1:30', {
	size: 60,
	fill: 0xFFFFFF
});
timerText.anchor.set(0.5, 0.5);
timerText.x = 1024;
timerText.y = 200;
game.addChild(timerText);
// Touch controls
var isPressed = false;
game.down = function (x, y, obj) {
	isPressed = true;
	player.startRunning();
};
game.up = function (x, y, obj) {
	isPressed = false;
	player.stopRunning();
};
// Main game update
game.update = function () {
	// Update game timer
	gameTimer++;
	var remainingTime = gameTimeLimit - gameTimer;
	var minutes = Math.floor(remainingTime / 3600);
	var seconds = Math.floor(remainingTime % 3600 / 60);
	// Format timer display
	var timeDisplay = minutes + ':' + (seconds < 10 ? '0' : '') + seconds;
	timerText.setText(timeDisplay);
	// Check if time limit reached
	if (gameTimer >= gameTimeLimit) {
		LK.showGameOver();
		return;
	}
	// Update light timer
	lightTimer++;
	// Check if it's time to change lights
	if (lightTimer >= currentLightDuration) {
		lightTimer = 0;
		isGreenLight = !isGreenLight;
		if (isGreenLight) {
			lightSystem.changeToGreen();
			lightStatusText.setText('GREEN LIGHT - GO!');
			lightStatusText.tint = 0x00ff00;
			currentLightDuration = greenLightDuration;
			// Decrease green light duration slightly for progressive difficulty
			if (greenLightDuration > 60) {
				greenLightDuration -= 2;
			}
		} else {
			lightSystem.changeToRed();
			lightStatusText.setText('RED LIGHT - STOP!');
			lightStatusText.tint = 0xff0000;
			currentLightDuration = redLightDuration;
			// Decrease red light duration slightly for progressive difficulty
			if (redLightDuration > 40) {
				redLightDuration -= 1;
			}
		}
	}
	// Check if player is caught moving during red light
	if (!isGreenLight && player.isMoving) {
		// Player is eliminated for moving during red light
		LK.showGameOver();
	}
	// Force stop player during red light
	if (!isGreenLight && isPressed) {
		player.stopRunning();
	}
	// Allow movement only during green light
	if (isGreenLight && isPressed) {
		player.startRunning();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -81,8 +81,10 @@
 var greenLightDuration = 180; // 3 seconds at 60fps
 var redLightDuration = 120; // 2 seconds at 60fps
 var currentLightDuration = greenLightDuration;
 var finishX = 1900;
+var gameTimer = 0;
+var gameTimeLimit = 5400; // 1:30 minutes at 60fps (90 seconds * 60)
 // Create floor
 var floor = game.addChild(LK.getAsset('floor', {
 	anchorX: 0,
 	anchorY: 0,
@@ -134,8 +136,17 @@
 lightStatusText.anchor.set(0.5, 0.5);
 lightStatusText.x = 1024;
 lightStatusText.y = 500;
 game.addChild(lightStatusText);
+// Create timer display text
+var timerText = new Text2('1:30', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+timerText.anchor.set(0.5, 0.5);
+timerText.x = 1024;
+timerText.y = 200;
+game.addChild(timerText);
 // Touch controls
 var isPressed = false;
 game.down = function (x, y, obj) {
 	isPressed = true;
@@ -146,8 +157,21 @@
 	player.stopRunning();
 };
 // Main game update
 game.update = function () {
+	// Update game timer
+	gameTimer++;
+	var remainingTime = gameTimeLimit - gameTimer;
+	var minutes = Math.floor(remainingTime / 3600);
+	var seconds = Math.floor(remainingTime % 3600 / 60);
+	// Format timer display
+	var timeDisplay = minutes + ':' + (seconds < 10 ? '0' : '') + seconds;
+	timerText.setText(timeDisplay);
+	// Check if time limit reached
+	if (gameTimer >= gameTimeLimit) {
+		LK.showGameOver();
+		return;
+	}
 	// Update light timer
 	lightTimer++;
 	// Check if it's time to change lights
 	if (lightTimer >= currentLightDuration) {
@@ -174,12 +198,10 @@
 		}
 	}
 	// Check if player is caught moving during red light
 	if (!isGreenLight && player.isMoving) {
-		player.reset();
-		// Reset difficulty
-		greenLightDuration = 180;
-		redLightDuration = 120;
+		// Player is eliminated for moving during red light
+		LK.showGameOver();
 	}
 	// Force stop player during red light
 	if (!isGreenLight && isPressed) {
 		player.stopRunning();