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

/**** 
* Classes
****/ 
var F1Car = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('f1Car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lane = 1; // 0 = left, 1 = center, 2 = right
	self.isJumping = false;
	self.jumpStartY = 0;
	self.moveToLane = function (targetLane) {
		if (targetLane < 0 || targetLane > 2) return;
		self.lane = targetLane;
		var targetX = lanePositions[targetLane];
		tween(self, {
			x: targetX
		}, {
			duration: 200,
			easing: tween.easeOut
		});
	};
	self.jump = function () {
		if (self.isJumping || jumpPower < 5) return;
		self.isJumping = true;
		self.jumpStartY = self.y;
		// Consume 5 jump power points
		jumpPower -= 5;
		// Update jump power bar scale
		jumpPowerBar.scaleY = Math.min(jumpPower / 20, 1);
		// Jump animation
		tween(self, {
			y: self.jumpStartY - 100,
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 600,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(self, {
					y: self.jumpStartY,
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 600,
					easing: tween.easeIn,
					onFinish: function onFinish() {
						self.isJumping = false;
					}
				});
			}
		});
		// Play sound only (no points awarded)
		LK.getSound('jump').play();
	};
	return self;
});
var SportsCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('sportsCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 12; // Faster than regular traffic
	self.lane = 0;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var TrafficCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('trafficCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.lane = 0;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Truck = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('truck', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6; // Slower than regular traffic
	self.lane = 0;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x228B22
});

/**** 
* Game Code
****/ 
// Game state management
var gameState = "menu"; // "menu", "playing"
// Lane positions
var lanePositions = [2048 / 2 - 300, 2048 / 2, 2048 / 2 + 300];
// Global game variables
var roadBg;
var leftLane;
var rightLane;
var playerCar;
var trafficCars;
var spawnTimer;
var gameSpeed;
var difficultyTimer;
var scoreTxt;
var dragStartX;
var dragStartY;
var isDragging;
var lastMoveTime;
var jumpPowerBarBg;
var jumpPowerBar;
var jumpPower = 0;
// Main menu elements
var menuContainer;
var titleText;
var playButton;
var playButtonText;
function createMainMenu() {
	menuContainer = game.addChild(new Container());
	// Game title
	titleText = new Text2('F1 HIGHWAY RUSH', {
		size: 120,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 2048 / 2;
	titleText.y = 800;
	menuContainer.addChild(titleText);
	// Best score display
	var bestScore = storage.bestScore || 0;
	var bestScoreText = new Text2('BEST: ' + bestScore, {
		size: 60,
		fill: 0xFFD700
	});
	bestScoreText.anchor.set(0.5, 0.5);
	bestScoreText.x = 2048 / 2;
	bestScoreText.y = 950;
	menuContainer.addChild(bestScoreText);
	// Play button background
	playButton = menuContainer.addChild(LK.getAsset('road', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 1400,
		scaleX: 0.4,
		scaleY: 0.3
	}));
	// Play button text
	playButtonText = new Text2('TAP TO PLAY', {
		size: 80,
		fill: 0xFFFFFF
	});
	playButtonText.anchor.set(0.5, 0.5);
	playButtonText.x = 2048 / 2;
	playButtonText.y = 1400;
	menuContainer.addChild(playButtonText);
	// Info button background
	var infoButton = menuContainer.addChild(LK.getAsset('road', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 1700,
		scaleX: 0.3,
		scaleY: 0.2
	}));
	// Info button text
	var infoButtonText = new Text2('INFO', {
		size: 60,
		fill: 0xFFFFFF
	});
	infoButtonText.anchor.set(0.5, 0.5);
	infoButtonText.x = 2048 / 2;
	infoButtonText.y = 1700;
	menuContainer.addChild(infoButtonText);
	// Info button press effect
	infoButton.down = function (x, y, obj) {
		tween(infoButton, {
			scaleX: 0.25,
			scaleY: 0.15
		}, {
			duration: 100,
			easing: tween.easeOut
		});
	};
	infoButton.up = function (x, y, obj) {
		tween(infoButton, {
			scaleX: 0.3,
			scaleY: 0.2
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				showInfoScreen();
			}
		});
	};
	// Button press effect
	playButton.down = function (x, y, obj) {
		tween(playButton, {
			scaleX: 0.35,
			scaleY: 0.25
		}, {
			duration: 100,
			easing: tween.easeOut
		});
	};
	playButton.up = function (x, y, obj) {
		tween(playButton, {
			scaleX: 0.4,
			scaleY: 0.3
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				startGame();
			}
		});
	};
}
function startGame() {
	gameState = "playing";
	menuContainer.destroy();
	initializeGameplay();
}
function showInfoScreen() {
	// Hide main menu
	menuContainer.visible = false;
	// Create info container
	var infoContainer = game.addChild(new Container());
	// Info background
	var infoBg = infoContainer.addChild(LK.getAsset('road', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2,
		scaleX: 0.8,
		scaleY: 1.2
	}));
	// Info title
	var infoTitle = new Text2('HOW TO PLAY', {
		size: 100,
		fill: 0xFFFFFF
	});
	infoTitle.anchor.set(0.5, 0.5);
	infoTitle.x = 2048 / 2;
	infoTitle.y = 600;
	infoContainer.addChild(infoTitle);
	// Instructions text
	var instructions = new Text2('SWIPE LEFT/RIGHT: Change lanes\nFREE VERTICAL MOVEMENT: Move forward/back\nTAP: Jump (costs 5 power)\nAvoid traffic cars!\nSurvival = points\nJump power charges 2x faster than score', {
		size: 50,
		fill: 0xFFFFFF,
		align: 'center'
	});
	instructions.anchor.set(0.5, 0.5);
	instructions.x = 2048 / 2;
	instructions.y = 1200;
	infoContainer.addChild(instructions);
	// Back button
	var backButton = infoContainer.addChild(LK.getAsset('road', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 1800,
		scaleX: 0.3,
		scaleY: 0.2
	}));
	var backButtonText = new Text2('BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backButtonText.anchor.set(0.5, 0.5);
	backButtonText.x = 2048 / 2;
	backButtonText.y = 1800;
	infoContainer.addChild(backButtonText);
	// Back button functionality
	backButton.down = function (x, y, obj) {
		tween(backButton, {
			scaleX: 0.25,
			scaleY: 0.15
		}, {
			duration: 100,
			easing: tween.easeOut
		});
	};
	backButton.up = function (x, y, obj) {
		tween(backButton, {
			scaleX: 0.3,
			scaleY: 0.2
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				infoContainer.destroy();
				menuContainer.visible = true;
			}
		});
	};
}
function initializeGameplay() {
	// Initialize game variables
	// Create road background
	roadBg = game.addChild(LK.getAsset('road', {
		anchorX: 0.5,
		anchorY: 0,
		x: 2048 / 2,
		y: 0,
		scaleY: 10
	}));
	// Create lane dividers
	leftLane = game.addChild(LK.getAsset('lane', {
		anchorX: 0.5,
		anchorY: 0,
		x: lanePositions[0] + 150,
		y: 0
	}));
	rightLane = game.addChild(LK.getAsset('lane', {
		anchorX: 0.5,
		anchorY: 0,
		x: lanePositions[1] + 150,
		y: 0
	}));
	// Create player car
	playerCar = game.addChild(new F1Car());
	playerCar.x = lanePositions[1];
	playerCar.y = 2200;
	// Traffic management
	trafficCars = [];
	spawnTimer = 0;
	gameSpeed = 1;
	difficultyTimer = 0;
	// Score display
	scoreTxt = new Text2('0', {
		size: 80,
		fill: 0xFFFFFF
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	// Best score display during gameplay
	var bestScoreGameTxt = new Text2('BEST: ' + (storage.bestScore || 0), {
		size: 60,
		fill: 0xFFD700
	});
	bestScoreGameTxt.anchor.set(0.5, 0);
	bestScoreGameTxt.y = 100;
	LK.gui.top.addChild(bestScoreGameTxt);
	// Store reference globally for efficient updates
	window.bestScoreGameTxt = bestScoreGameTxt;
	// Jump power bar background
	jumpPowerBarBg = game.addChild(LK.getAsset('jumpPowerBarBg', {
		anchorX: 0.5,
		anchorY: 1,
		x: 2048 - 100,
		y: 2400
	}));
	// Jump power bar fill
	jumpPowerBar = game.addChild(LK.getAsset('jumpPowerBar', {
		anchorX: 0.5,
		anchorY: 1,
		x: 2048 - 100,
		y: 2400,
		scaleY: 0
	}));
	// Control variables
	dragStartX = 0;
	dragStartY = 0;
	isDragging = false;
	lastMoveTime = 0;
}
// Touch controls
game.down = function (x, y, obj) {
	if (gameState !== "playing") return;
	dragStartX = x;
	dragStartY = y;
	isDragging = true;
	lastMoveTime = Date.now();
};
game.move = function (x, y, obj) {
	if (gameState !== "playing" || !isDragging) return;
	var deltaX = x - dragStartX;
	var deltaY = y - dragStartY;
	var currentTime = Date.now();
	// Lane switching (horizontal swipe)
	if (Math.abs(deltaX) > 150 && Math.abs(deltaX) > Math.abs(deltaY)) {
		if (deltaX > 0 && playerCar.lane < 2) {
			playerCar.moveToLane(playerCar.lane + 1);
		} else if (deltaX < 0 && playerCar.lane > 0) {
			playerCar.moveToLane(playerCar.lane - 1);
		}
		isDragging = false;
		return;
	}
	// Free movement - follow drag position for vertical movement
	if (isDragging) {
		// Calculate new Y position based on drag
		var newY = playerCar.y + deltaY * 0.5; // Scale factor for smooth movement
		// Constrain movement within road boundaries
		newY = Math.max(Math.min(newY, 2500), 200);
		// Update player position
		playerCar.y = newY;
		if (playerCar.isJumping) {
			// If jumping, update jump start position to maintain relative jump height
			playerCar.jumpStartY = newY;
		}
		// Update drag start position for continuous movement
		dragStartY = y;
	}
};
game.up = function (x, y, obj) {
	if (gameState !== "playing" || !isDragging) return;
	var deltaX = x - dragStartX;
	var deltaY = y - dragStartY;
	var swipeDistance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
	// Tap for jump (small movement distance indicates a tap)
	if (swipeDistance < 30) {
		playerCar.jump();
	}
	isDragging = false;
};
// Spawn traffic
function spawnTraffic() {
	var lane = Math.floor(Math.random() * 3);
	var traffic;
	var carType = Math.random();
	// 60% regular cars, 25% sports cars, 15% trucks
	if (carType < 0.6) {
		traffic = new TrafficCar();
		traffic.speed = 8 + gameSpeed * 2;
	} else if (carType < 0.85) {
		traffic = new SportsCar();
		traffic.speed = 12 + gameSpeed * 2;
	} else {
		traffic = new Truck();
		traffic.speed = 6 + gameSpeed * 2;
	}
	traffic.x = lanePositions[lane];
	traffic.y = -100;
	traffic.lane = lane;
	trafficCars.push(traffic);
	game.addChild(traffic);
}
// Check collisions
function checkCollisions() {
	for (var i = trafficCars.length - 1; i >= 0; i--) {
		var traffic = trafficCars[i];
		// Check collision with player (only if not jumping)
		if (!playerCar.isJumping && traffic.lane === playerCar.lane) {
			var distance = Math.abs(traffic.y - playerCar.y);
			// Different collision distances based on car type
			var collisionDistance = 150; // Default for TrafficCar
			if (traffic instanceof SportsCar) {
				collisionDistance = 125; // Smaller sports car
			} else if (traffic instanceof Truck) {
				collisionDistance = 175; // Larger truck
			}
			if (distance < collisionDistance) {
				// Collision detected
				var currentScore = LK.getScore();
				var bestScore = storage.bestScore || 0;
				if (currentScore > bestScore) {
					storage.bestScore = currentScore;
					// Update best score display during gameplay using stored reference
					if (window.bestScoreGameTxt) {
						window.bestScoreGameTxt.setText('BEST: ' + currentScore);
					}
				}
				LK.getSound('crash').play();
				LK.effects.flashScreen(0xFF0000, 1000);
				LK.showGameOver();
				return;
			}
		} else if (playerCar.isJumping && traffic.lane === playerCar.lane) {
			// When jumping, check if we're passing over a car for visual feedback
			var distance = Math.abs(traffic.y - playerCar.y);
			if (distance < 100) {
				// Visual effect when passing over a car while jumping
				LK.effects.flashObject(traffic, 0x00FF00, 300);
			}
		}
		// Remove off-screen traffic
		if (traffic.y > 2800) {
			traffic.destroy();
			trafficCars.splice(i, 1);
		}
	}
}
// Initialize main menu
createMainMenu();
// Main game loop
game.update = function () {
	if (gameState !== "playing") return;
	// Update score display
	scoreTxt.setText(LK.getScore());
	// Update best score display in real-time
	var currentScore = LK.getScore();
	var bestScore = storage.bestScore || 0;
	if (currentScore > bestScore) {
		storage.bestScore = currentScore;
		// Update best score display during gameplay using stored reference
		if (window.bestScoreGameTxt) {
			window.bestScoreGameTxt.setText('BEST: ' + currentScore);
		}
	}
	// Spawn traffic
	spawnTimer++;
	var spawnRate = Math.max(30 - Math.floor(gameSpeed * 3), 15);
	if (spawnTimer >= spawnRate) {
		spawnTimer = 0;
		spawnTraffic();
	}
	// Increase difficulty over time
	difficultyTimer++;
	if (difficultyTimer >= 300) {
		// Every 5 seconds
		difficultyTimer = 0;
		gameSpeed += 0.1;
	}
	// Increase car speed by 10% every 10 points
	var currentScore = LK.getScore();
	var speedMultiplier = 1 + Math.floor(currentScore / 10) * 0.1;
	for (var i = 0; i < trafficCars.length; i++) {
		trafficCars[i].speed = (8 + gameSpeed * 2) * speedMultiplier;
	}
	// Check collisions
	checkCollisions();
	// Add survival points
	if (LK.ticks % 60 === 0) {
		// Every second
		LK.setScore(LK.getScore() + 1);
	}
	// Update jump power (fills twice as fast as points)
	if (LK.ticks % 30 === 0) {
		// Every half second
		jumpPower = Math.min(jumpPower + 1, 20); // Max 20 power points
		// Update jump power bar scale
		jumpPowerBar.scaleY = Math.min(jumpPower / 20, 1);
	}
};

===================================================================
--- original.js
+++ change.js
@@ -345,11 +345,8 @@
 	// Create player car
 	playerCar = game.addChild(new F1Car());
 	playerCar.x = lanePositions[1];
 	playerCar.y = 2200;
-	// Move player car to highest layer (render on top)
-	game.removeChild(playerCar);
-	game.addChild(playerCar);
 	// Traffic management
 	trafficCars = [];
 	spawnTimer = 0;
 	gameSpeed = 1;
@@ -493,8 +490,15 @@
 				LK.effects.flashScreen(0xFF0000, 1000);
 				LK.showGameOver();
 				return;
 			}
+		} else if (playerCar.isJumping && traffic.lane === playerCar.lane) {
+			// When jumping, check if we're passing over a car for visual feedback
+			var distance = Math.abs(traffic.y - playerCar.y);
+			if (distance < 100) {
+				// Visual effect when passing over a car while jumping
+				LK.effects.flashObject(traffic, 0x00FF00, 300);
+			}
 		}
 		// Remove off-screen traffic
 		if (traffic.y > 2800) {
 			traffic.destroy();