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

/**** 
* Classes
****/ 
var Car = Container.expand(function () {
	var self = Container.call(this);
	var carBody = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var wheelLeft = self.attachAsset('wheel', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: -25,
		y: 20
	});
	var wheelRight = self.attachAsset('wheel', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 25,
		y: 20
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.speed = 2;
	self.gravity = 0.3;
	self.onGround = false;
	self.engineWorking = true;
	self.update = function () {
		// Only update physics if game has started
		if (!gameStarted) return;
		// Only apply gravity, no automatic movement
		self.velocityY += self.gravity;
		self.x += self.velocityX;
		self.y += self.velocityY;
		wheelLeft.rotation += self.velocityX * 0.1;
		wheelRight.rotation += self.velocityX * 0.1;
	};
	self.setVelocity = function (vx, vy) {
		self.velocityX = vx;
		self.velocityY = vy;
	};
	return self;
});
var DrawnLine = Container.expand(function () {
	var self = Container.call(this);
	self.points = [];
	self.segments = [];
	self.addPoint = function (x, y) {
		self.points.push({
			x: x,
			y: y
		});
		if (self.points.length > 1) {
			var lastPoint = self.points[self.points.length - 2];
			var currentPoint = self.points[self.points.length - 1];
			var dx = currentPoint.x - lastPoint.x;
			var dy = currentPoint.y - lastPoint.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			var angle = Math.atan2(dy, dx);
			var segment = self.attachAsset('wall', {
				anchorX: 0,
				anchorY: 0.5,
				x: lastPoint.x,
				y: lastPoint.y,
				scaleX: distance / 200,
				scaleY: 0.1,
				rotation: angle,
				tint: 0x0000FF
			});
			self.segments.push(segment);
		}
	};
	self.getSegments = function () {
		var segmentData = [];
		for (var i = 0; i < self.points.length - 1; i++) {
			segmentData.push({
				start: self.points[i],
				end: self.points[i + 1]
			});
		}
		return segmentData;
	};
	return self;
});
var SmokeParticle = Container.expand(function () {
	var self = Container.call(this);
	var smokeGraphics = self.attachAsset('wheel', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x999999,
		alpha: 0.6
	});
	self.init = function (x, y) {
		self.x = x;
		self.y = y;
		self.scale.set(0.3);
		// Animate the smoke particle
		tween(self, {
			y: y - 50,
			alpha: 0
		}, {
			duration: 800,
			easing: tween.easeOut
		});
		tween(self.scale, {
			x: 1.2,
			y: 1.2
		}, {
			duration: 800,
			easing: tween.easeOut
		});
	};
	return self;
});
var Trampoline = Container.expand(function () {
	var self = Container.call(this);
	var trampolineGraphics = self.attachAsset('trampoline', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bounce = function () {
		tween(trampolineGraphics, {
			scaleY: 0.7
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(trampolineGraphics, {
					scaleY: 1
				}, {
					duration: 200,
					easing: tween.bounceOut
				});
			}
		});
	};
	return self;
});
var Wall = Container.expand(function () {
	var self = Container.call(this);
	var wallGraphics = self.attachAsset('wall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xE8E8E8
});

/**** 
* Game Code
****/ 
var currentLevel = storage.currentLevel || 1;
var maxLevel = 20;
var car = null;
var walls = [];
var trampolines = [];
var drawnLine = null;
var isDrawing = false;
var levelComplete = false;
var carCanMove = false;
var gameStarted = false;
var startButton = null;
var startButtonText = null;
var refreshButton = null;
var refreshButtonText = null;
var resetButton = null;
var resetButtonText = null;
var backButton = null;
var backButtonText = null;
var smokeParticles = [];
var smokeTimer = 0;
var drawnLines = []; // Array to store all drawn lines
var maxLines = 3; // Maximum lines per level
var currentLineCount = 0; // Current number of lines drawn
var pedalButton = null;
var pedalButtonText = null;
var brakeButton = null;
var brakeButtonText = null;
var brakeButtonPressed = false;
var brakeAcceleration = 0;
var maxBrakeAcceleration = 3.0;
var brakeAccelerationIncrement = 0.0037; // Reduced by 200% from 0.011 (0.011 / 3)
var pedalButtonPressed = false;
var pedalAcceleration = 0;
var maxPedalAcceleration = 3.0;
var pedalAccelerationIncrement = 0.0037; // Same reduced rate as brake
var startPos = {
	x: 200,
	y: 1000
};
var finishPos = {
	x: 1800,
	y: 1000
};
var levelText = new Text2('Level ' + currentLevel, {
	size: 80,
	fill: 0x333333
});
levelText.anchor.set(0.5, 0);
LK.gui.top.addChild(levelText);
var instructionText = new Text2('Draw a path from behind the car!', {
	size: 50,
	fill: 0x666666
});
instructionText.anchor.set(0.5, 0);
instructionText.y = 100;
LK.gui.top.addChild(instructionText);
// Create or update line counter text
if (!game.lineCounterText) {
	game.lineCounterText = new Text2('Lines: 3/3', {
		size: 40,
		fill: 0x666666
	});
	game.lineCounterText.anchor.set(0.5, 0);
	game.lineCounterText.y = 150;
	LK.gui.top.addChild(game.lineCounterText);
}
game.lineCounterText.setText('Lines: ' + (maxLines - currentLineCount) + '/' + maxLines);
function setupLevel(level) {
	// Clear existing objects
	if (car) car.destroy();
	for (var i = 0; i < walls.length; i++) {
		walls[i].destroy();
	}
	for (var i = 0; i < trampolines.length; i++) {
		trampolines[i].destroy();
	}
	if (drawnLine) drawnLine.destroy();
	// Clear smoke particles
	for (var i = 0; i < smokeParticles.length; i++) {
		smokeParticles[i].destroy();
	}
	smokeParticles = [];
	// Clear all drawn lines
	for (var i = 0; i < drawnLines.length; i++) {
		drawnLines[i].destroy();
	}
	drawnLines = [];
	walls = [];
	trampolines = [];
	drawnLine = null;
	isDrawing = false;
	levelComplete = false;
	carCanMove = false;
	gameStarted = false;
	currentLineCount = 0; // Reset line counter
	// Create ground
	var ground = game.addChild(LK.getAsset('ground', {
		anchorX: 0.5,
		anchorY: 0,
		x: 1024,
		y: 2532
	}));
	// Create start and finish flags
	var startFlag = game.addChild(LK.getAsset('startFlag', {
		anchorX: 0.5,
		anchorY: 1,
		x: startPos.x,
		y: startPos.y + 50
	}));
	var finishFlag = game.addChild(LK.getAsset('finishFlag', {
		anchorX: 0.5,
		anchorY: 1,
		x: finishPos.x,
		y: finishPos.y + 50
	}));
	// Reset finish position to default for all levels
	finishPos.x = 1800;
	finishPos.y = 1000;
	finishFlag.x = finishPos.x;
	finishFlag.y = finishPos.y + 50;
	// Setup level-specific elements
	if (level === 1) {
		// Simple level - just draw from start to finish
		instructionText.setText('Draw a path, use PEDAL/BRAKE to control car!');
	} else if (level === 2) {
		// Wall in the middle
		var wall = new Wall();
		wall.x = 1024;
		wall.y = 1000;
		walls.push(wall);
		game.addChild(wall);
		instructionText.setText('Draw around the wall!');
	} else if (level === 3) {
		// L-shaped obstacle
		var wall1 = new Wall();
		wall1.x = 1024;
		wall1.y = 1000;
		wall1.scaleX = 2;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 1224;
		wall2.y = 900;
		wall2.rotation = Math.PI / 2;
		walls.push(wall2);
		game.addChild(wall2);
		instructionText.setText('Navigate the L-shape!');
	} else if (level === 4) {
		// Multiple trampolines with strategic positioning
		var wall1 = new Wall();
		wall1.x = 600;
		wall1.y = 1000;
		wall1.scaleX = 1.5;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 1200;
		wall2.y = 1200;
		wall2.scaleY = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var trampoline1 = new Trampoline();
		trampoline1.x = 400;
		trampoline1.y = 1200;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 800;
		trampoline2.y = 800;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1400;
		trampoline3.y = 1000;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		finishPos.y = 600;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Bounce through the obstacle course!');
	} else if (level === 5) {
		// Multi-stage obstacle course with steep climbs and precision jumps
		// Create ascending wall platforms
		var wall1 = new Wall();
		wall1.x = 400;
		wall1.y = 1200;
		wall1.scaleX = 1.5;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 700;
		wall2.y = 1000;
		wall2.scaleX = 1.2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1000;
		wall3.y = 800;
		wall3.scaleX = 1.8;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1300;
		wall4.y = 600;
		wall4.scaleX = 1.5;
		walls.push(wall4);
		game.addChild(wall4);
		// Create vertical barriers for added difficulty
		var wall5 = new Wall();
		wall5.x = 550;
		wall5.y = 1100;
		wall5.scaleY = 1.5;
		walls.push(wall5);
		game.addChild(wall5);
		var wall6 = new Wall();
		wall6.x = 850;
		wall6.y = 900;
		wall6.scaleY = 2;
		walls.push(wall6);
		game.addChild(wall6);
		var wall7 = new Wall();
		wall7.x = 1150;
		wall7.y = 700;
		wall7.scaleY = 1.8;
		walls.push(wall7);
		game.addChild(wall7);
		// Strategic trampoline placement for multi-bounce sequences
		var trampoline1 = new Trampoline();
		trampoline1.x = 600;
		trampoline1.y = 1350;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 900;
		trampoline2.y = 1150;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1200;
		trampoline3.y = 950;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		var trampoline4 = new Trampoline();
		trampoline4.x = 1500;
		trampoline4.y = 750;
		trampolines.push(trampoline4);
		game.addChild(trampoline4);
		finishPos.y = 400;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Master the multi-stage climb! Precision required!');
	} else if (level === 6) {
		// Multiple trampolines with walls
		var wall1 = new Wall();
		wall1.x = 800;
		wall1.y = 1000;
		wall1.scaleY = 2;
		walls.push(wall1);
		game.addChild(wall1);
		var trampoline1 = new Trampoline();
		trampoline1.x = 600;
		trampoline1.y = 1300;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 1400;
		trampoline2.y = 800;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		instructionText.setText('Bounce your way through!');
	} else if (level === 7) {
		// Engine failure with multiple obstacles
		var wall1 = new Wall();
		wall1.x = 600;
		wall1.y = 1100;
		wall1.rotation = Math.PI / 4;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 1400;
		wall2.y = 900;
		wall2.rotation = -Math.PI / 4;
		walls.push(wall2);
		game.addChild(wall2);
		finishPos.y = 1200;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Engine down! Tap car to push! Navigate carefully!');
	} else if (level === 8) {
		// Maze-like structure
		var wall1 = new Wall();
		wall1.x = 500;
		wall1.y = 1000;
		wall1.scaleX = 1.5;
		wall1.rotation = Math.PI / 2;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 800;
		wall2.y = 800;
		wall2.scaleX = 1.5;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1200;
		wall3.y = 1200;
		wall3.scaleX = 1.5;
		wall3.rotation = Math.PI / 2;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1500;
		wall4.y = 900;
		wall4.scaleX = 1.5;
		walls.push(wall4);
		game.addChild(wall4);
		instructionText.setText('Find your way through the maze!');
	} else if (level === 9) {
		// Trampoline sequence
		var trampoline1 = new Trampoline();
		trampoline1.x = 400;
		trampoline1.y = 1200;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 700;
		trampoline2.y = 900;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1000;
		trampoline3.y = 700;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		var trampoline4 = new Trampoline();
		trampoline4.x = 1300;
		trampoline4.y = 1100;
		trampolines.push(trampoline4);
		game.addChild(trampoline4);
		finishPos.y = 800;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Bounce through the sequence!');
	} else if (level === 10) {
		// Moving trampolines with precise timing - engine failure
		finishPos.y = 400;
		finishFlag.y = finishPos.y + 50;
		// Create three moving trampolines
		var trampoline1 = new Trampoline();
		trampoline1.x = 500;
		trampoline1.y = 1300;
		trampoline1.moveDirection = 1;
		trampoline1.moveSpeed = 2;
		trampoline1.minX = 400;
		trampoline1.maxX = 700;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 1000;
		trampoline2.y = 1000;
		trampoline2.moveDirection = -1;
		trampoline2.moveSpeed = 3;
		trampoline2.minX = 800;
		trampoline2.maxX = 1200;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1400;
		trampoline3.y = 700;
		trampoline3.moveDirection = 1;
		trampoline3.moveSpeed = 2.5;
		trampoline3.minX = 1200;
		trampoline3.maxX = 1600;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		// Add walls to create platforms
		var wall1 = new Wall();
		wall1.x = 600;
		wall1.y = 1200;
		wall1.scaleX = 2;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 1100;
		wall2.y = 900;
		wall2.scaleX = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1500;
		wall3.y = 600;
		wall3.scaleX = 2;
		walls.push(wall3);
		game.addChild(wall3);
		instructionText.setText('Time your jumps! Moving trampolines! Engine failed! Tap car to push!');
	} else if (level === 11) {
		// Complex obstacle course
		var wall1 = new Wall();
		wall1.x = 400;
		wall1.y = 1000;
		wall1.scaleY = 3;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 800;
		wall2.y = 800;
		wall2.scaleX = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1200;
		wall3.y = 1200;
		wall3.scaleY = 2;
		walls.push(wall3);
		game.addChild(wall3);
		var trampoline = new Trampoline();
		trampoline.x = 600;
		trampoline.y = 1300;
		trampolines.push(trampoline);
		game.addChild(trampoline);
		finishPos.y = 700;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Navigate the obstacle course!');
	} else if (level === 12) {
		// Multiple gaps with trampolines
		finishPos.y = 1600;
		finishFlag.y = finishPos.y + 50;
		var trampoline1 = new Trampoline();
		trampoline1.x = 500;
		trampoline1.y = 1200;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 900;
		trampoline2.y = 1000;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1300;
		trampoline3.y = 1300;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		instructionText.setText('Bridge multiple gaps!');
	} else if (level === 13) {
		// Simplified level with basic platforms and reasonable difficulty
		// Create simple ascending platforms
		var wall1 = new Wall();
		wall1.x = 600;
		wall1.y = 1100;
		wall1.scaleX = 1.5;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 1000;
		wall2.y = 900;
		wall2.scaleX = 1.5;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1300;
		wall3.y = 700;
		wall3.scaleX = 1.5;
		walls.push(wall3);
		game.addChild(wall3);
		// Add two trampolines for reasonable jumping
		var trampoline1 = new Trampoline();
		trampoline1.x = 450;
		trampoline1.y = 1250;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 850;
		trampoline2.y = 1050;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1150;
		trampoline3.y = 850;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		finishPos.y = 600;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Jump up the platforms! Engine failed! Tap car to push!');
	} else if (level === 14) {
		// Tower climbing
		var wall1 = new Wall();
		wall1.x = 500;
		wall1.y = 1200;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 700;
		wall2.y = 1000;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 900;
		wall3.y = 800;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1100;
		wall4.y = 600;
		walls.push(wall4);
		game.addChild(wall4);
		var trampoline1 = new Trampoline();
		trampoline1.x = 600;
		trampoline1.y = 1300;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 800;
		trampoline2.y = 1100;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1000;
		trampoline3.y = 900;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		finishPos.y = 400;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Climb the tower!');
	} else if (level === 15) {
		// Zigzag with engine failure
		var wall1 = new Wall();
		wall1.x = 400;
		wall1.y = 1100;
		wall1.rotation = Math.PI / 3;
		wall1.scaleX = 1.5;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 700;
		wall2.y = 900;
		wall2.rotation = -Math.PI / 3;
		wall2.scaleX = 1.5;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1000;
		wall3.y = 1100;
		wall3.rotation = Math.PI / 3;
		wall3.scaleX = 1.5;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1300;
		wall4.y = 900;
		wall4.rotation = -Math.PI / 3;
		wall4.scaleX = 1.5;
		walls.push(wall4);
		game.addChild(wall4);
		instructionText.setText('Zigzag to victory! Engine failed! Tap car to push!');
	} else if (level === 16) {
		// Double trampoline jump
		var trampoline1 = new Trampoline();
		trampoline1.x = 600;
		trampoline1.y = 1200;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 1000;
		trampoline2.y = 800;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var wall1 = new Wall();
		wall1.x = 800;
		wall1.y = 1000;
		wall1.scaleX = 3;
		walls.push(wall1);
		game.addChild(wall1);
		finishPos.y = 600;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Double bounce to reach the top!');
	} else if (level === 17) {
		// Narrow passage with engine failure
		var wall1 = new Wall();
		wall1.x = 800;
		wall1.y = 900;
		wall1.scaleY = 4;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 1200;
		wall2.y = 1100;
		wall2.scaleY = 4;
		walls.push(wall2);
		game.addChild(wall2);
		var trampoline = new Trampoline();
		trampoline.x = 1000;
		trampoline.y = 1300;
		trampolines.push(trampoline);
		game.addChild(trampoline);
		finishPos.y = 800;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Thread the needle! Engine failed! Tap car to push!');
	} else if (level === 18) {
		// Multi-level platform
		var wall1 = new Wall();
		wall1.x = 500;
		wall1.y = 1200;
		wall1.scaleX = 2;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 800;
		wall2.y = 1000;
		wall2.scaleX = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1100;
		wall3.y = 800;
		wall3.scaleX = 2;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1400;
		wall4.y = 600;
		wall4.scaleX = 2;
		walls.push(wall4);
		game.addChild(wall4);
		var trampoline1 = new Trampoline();
		trampoline1.x = 650;
		trampoline1.y = 1300;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 950;
		trampoline2.y = 1100;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1250;
		trampoline3.y = 900;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		finishPos.y = 500;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Climb the platforms!');
	} else if (level === 19) {
		// Extreme obstacle course with engine failure
		var wall1 = new Wall();
		wall1.x = 400;
		wall1.y = 1100;
		wall1.rotation = Math.PI / 4;
		wall1.scaleX = 2;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 700;
		wall2.y = 800;
		wall2.rotation = -Math.PI / 4;
		wall2.scaleX = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1000;
		wall3.y = 1200;
		wall3.rotation = Math.PI / 6;
		wall3.scaleX = 2;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1300;
		wall4.y = 700;
		wall4.rotation = -Math.PI / 6;
		wall4.scaleX = 2;
		walls.push(wall4);
		game.addChild(wall4);
		var trampoline1 = new Trampoline();
		trampoline1.x = 550;
		trampoline1.y = 1300;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 850;
		trampoline2.y = 1000;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1150;
		trampoline3.y = 900;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		finishPos.y = 500;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Ultimate challenge! Engine failed! Tap car to push!');
	} else if (level === 16) {
		// Double trampoline jump
		var trampoline1 = new Trampoline();
		trampoline1.x = 600;
		trampoline1.y = 1200;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 1000;
		trampoline2.y = 800;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var wall1 = new Wall();
		wall1.x = 800;
		wall1.y = 1000;
		wall1.scaleX = 3;
		walls.push(wall1);
		game.addChild(wall1);
		// Add moving wall for level 16
		var movingWall1 = new Wall();
		movingWall1.x = 400;
		movingWall1.y = 900;
		movingWall1.scaleY = 2;
		walls.push(movingWall1);
		game.addChild(movingWall1);
		// Start slow movement
		tween(movingWall1, {
			y: 1100
		}, {
			duration: 3000,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall1, {
					y: 900
				}, {
					duration: 3000,
					easing: tween.linear,
					onFinish: function onFinish() {
						// Loop the movement
						tween(movingWall1, {
							y: 1100
						}, {
							duration: 3000,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall1, {
									y: 900
								}, {
									duration: 3000,
									easing: tween.linear
								});
							}
						});
					}
				});
			}
		});
		finishPos.y = 600;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Double bounce to reach the top! Avoid moving walls!');
	} else if (level === 17) {
		// Narrow passage with engine failure
		var wall1 = new Wall();
		wall1.x = 800;
		wall1.y = 900;
		wall1.scaleY = 4;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 1200;
		wall2.y = 1100;
		wall2.scaleY = 4;
		walls.push(wall2);
		game.addChild(wall2);
		// Add moving wall for level 17
		var movingWall1 = new Wall();
		movingWall1.x = 600;
		movingWall1.y = 1200;
		movingWall1.scaleX = 1.5;
		walls.push(movingWall1);
		game.addChild(movingWall1);
		// Start slow horizontal movement
		tween(movingWall1, {
			x: 900
		}, {
			duration: 4000,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall1, {
					x: 600
				}, {
					duration: 4000,
					easing: tween.linear,
					onFinish: function onFinish() {
						// Loop the movement
						tween(movingWall1, {
							x: 900
						}, {
							duration: 4000,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall1, {
									x: 600
								}, {
									duration: 4000,
									easing: tween.linear
								});
							}
						});
					}
				});
			}
		});
		var trampoline = new Trampoline();
		trampoline.x = 1000;
		trampoline.y = 1300;
		trampolines.push(trampoline);
		game.addChild(trampoline);
		finishPos.y = 800;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Thread the needle! Engine failed! Tap car to push!');
	} else if (level === 18) {
		// Multi-level platform
		var wall1 = new Wall();
		wall1.x = 500;
		wall1.y = 1200;
		wall1.scaleX = 2;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 800;
		wall2.y = 1000;
		wall2.scaleX = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1100;
		wall3.y = 800;
		wall3.scaleX = 2;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1400;
		wall4.y = 600;
		wall4.scaleX = 2;
		walls.push(wall4);
		game.addChild(wall4);
		// Add moving wall for level 18
		var movingWall1 = new Wall();
		movingWall1.x = 700;
		movingWall1.y = 900;
		movingWall1.scaleY = 2;
		walls.push(movingWall1);
		game.addChild(movingWall1);
		// Start slow vertical movement
		tween(movingWall1, {
			y: 1100
		}, {
			duration: 3500,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall1, {
					y: 900
				}, {
					duration: 3500,
					easing: tween.linear,
					onFinish: function onFinish() {
						// Loop the movement
						tween(movingWall1, {
							y: 1100
						}, {
							duration: 3500,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall1, {
									y: 900
								}, {
									duration: 3500,
									easing: tween.linear
								});
							}
						});
					}
				});
			}
		});
		var trampoline1 = new Trampoline();
		trampoline1.x = 650;
		trampoline1.y = 1300;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 950;
		trampoline2.y = 1100;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1250;
		trampoline3.y = 900;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		finishPos.y = 500;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Climb the platforms! Avoid moving obstacles!');
	} else if (level === 19) {
		// Extreme obstacle course with engine failure
		var wall1 = new Wall();
		wall1.x = 400;
		wall1.y = 1100;
		wall1.rotation = Math.PI / 4;
		wall1.scaleX = 2;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 700;
		wall2.y = 800;
		wall2.rotation = -Math.PI / 4;
		wall2.scaleX = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1000;
		wall3.y = 1200;
		wall3.rotation = Math.PI / 6;
		wall3.scaleX = 2;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1300;
		wall4.y = 700;
		wall4.rotation = -Math.PI / 6;
		wall4.scaleX = 2;
		walls.push(wall4);
		game.addChild(wall4);
		// Add two moving walls for level 19
		var movingWall1 = new Wall();
		movingWall1.x = 600;
		movingWall1.y = 1000;
		movingWall1.scaleY = 1.5;
		walls.push(movingWall1);
		game.addChild(movingWall1);
		// Horizontal movement
		tween(movingWall1, {
			x: 900
		}, {
			duration: 3000,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall1, {
					x: 600
				}, {
					duration: 3000,
					easing: tween.linear,
					onFinish: function onFinish() {
						// Loop the movement
						tween(movingWall1, {
							x: 900
						}, {
							duration: 3000,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall1, {
									x: 600
								}, {
									duration: 3000,
									easing: tween.linear
								});
							}
						});
					}
				});
			}
		});
		var movingWall2 = new Wall();
		movingWall2.x = 1100;
		movingWall2.y = 950;
		movingWall2.scaleX = 1.5;
		walls.push(movingWall2);
		game.addChild(movingWall2);
		// Vertical movement
		tween(movingWall2, {
			y: 1150
		}, {
			duration: 2500,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall2, {
					y: 950
				}, {
					duration: 2500,
					easing: tween.linear,
					onFinish: function onFinish() {
						// Loop the movement
						tween(movingWall2, {
							y: 1150
						}, {
							duration: 2500,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall2, {
									y: 950
								}, {
									duration: 2500,
									easing: tween.linear
								});
							}
						});
					}
				});
			}
		});
		var trampoline1 = new Trampoline();
		trampoline1.x = 550;
		trampoline1.y = 1300;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 850;
		trampoline2.y = 1000;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 1150;
		trampoline3.y = 900;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		finishPos.y = 500;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('Ultimate challenge! Engine failed! Tap car to push!');
	} else if (level === 20) {
		// Final boss level - completely restructured with moving elements
		var wall1 = new Wall();
		wall1.x = 400;
		wall1.y = 1100;
		wall1.scaleX = 1.5;
		walls.push(wall1);
		game.addChild(wall1);
		var wall2 = new Wall();
		wall2.x = 700;
		wall2.y = 900;
		wall2.scaleY = 2;
		walls.push(wall2);
		game.addChild(wall2);
		var wall3 = new Wall();
		wall3.x = 1000;
		wall3.y = 1300;
		wall3.rotation = Math.PI / 4;
		wall3.scaleX = 2;
		walls.push(wall3);
		game.addChild(wall3);
		var wall4 = new Wall();
		wall4.x = 1300;
		wall4.y = 800;
		wall4.rotation = -Math.PI / 3;
		wall4.scaleX = 1.8;
		walls.push(wall4);
		game.addChild(wall4);
		// Add three moving walls for the final level
		var movingWall1 = new Wall();
		movingWall1.x = 500;
		movingWall1.y = 1200;
		movingWall1.scaleX = 1.2;
		walls.push(movingWall1);
		game.addChild(movingWall1);
		// Slow circular movement
		var centerX1 = 500;
		var centerY1 = 1200;
		var radius1 = 100;
		var angle1 = 0;
		// Complex movement pattern
		tween(movingWall1, {
			x: centerX1 + radius1
		}, {
			duration: 2000,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall1, {
					y: centerY1 + radius1
				}, {
					duration: 2000,
					easing: tween.linear,
					onFinish: function onFinish() {
						tween(movingWall1, {
							x: centerX1 - radius1
						}, {
							duration: 2000,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall1, {
									y: centerY1 - radius1
								}, {
									duration: 2000,
									easing: tween.linear,
									onFinish: function onFinish() {
										// Loop back to start
										tween(movingWall1, {
											x: centerX1,
											y: centerY1
										}, {
											duration: 2000,
											easing: tween.linear
										});
									}
								});
							}
						});
					}
				});
			}
		});
		var movingWall2 = new Wall();
		movingWall2.x = 900;
		movingWall2.y = 1000;
		movingWall2.scaleY = 2;
		walls.push(movingWall2);
		game.addChild(movingWall2);
		// Diagonal movement
		tween(movingWall2, {
			x: 1200,
			y: 1200
		}, {
			duration: 3000,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall2, {
					x: 900,
					y: 1000
				}, {
					duration: 3000,
					easing: tween.linear,
					onFinish: function onFinish() {
						// Loop the movement
						tween(movingWall2, {
							x: 1200,
							y: 1200
						}, {
							duration: 3000,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall2, {
									x: 900,
									y: 1000
								}, {
									duration: 3000,
									easing: tween.linear
								});
							}
						});
					}
				});
			}
		});
		var movingWall3 = new Wall();
		movingWall3.x = 1400;
		movingWall3.y = 1100;
		movingWall3.scaleX = 1.5;
		movingWall3.rotation = Math.PI / 6;
		walls.push(movingWall3);
		game.addChild(movingWall3);
		// Vertical oscillation
		tween(movingWall3, {
			y: 1300
		}, {
			duration: 2500,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(movingWall3, {
					y: 900
				}, {
					duration: 2500,
					easing: tween.linear,
					onFinish: function onFinish() {
						// Loop the movement
						tween(movingWall3, {
							y: 1300
						}, {
							duration: 2500,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(movingWall3, {
									y: 900
								}, {
									duration: 2500,
									easing: tween.linear
								});
							}
						});
					}
				});
			}
		});
		// Add strategic trampolines
		var trampoline1 = new Trampoline();
		trampoline1.x = 350;
		trampoline1.y = 1300;
		trampolines.push(trampoline1);
		game.addChild(trampoline1);
		var trampoline2 = new Trampoline();
		trampoline2.x = 600;
		trampoline2.y = 1050;
		trampolines.push(trampoline2);
		game.addChild(trampoline2);
		var trampoline3 = new Trampoline();
		trampoline3.x = 850;
		trampoline3.y = 750;
		trampolines.push(trampoline3);
		game.addChild(trampoline3);
		var trampoline4 = new Trampoline();
		trampoline4.x = 1150;
		trampoline4.y = 1050;
		trampolines.push(trampoline4);
		game.addChild(trampoline4);
		var trampoline5 = new Trampoline();
		trampoline5.x = 1500;
		trampoline5.y = 650;
		trampolines.push(trampoline5);
		game.addChild(trampoline5);
		finishPos.y = 400;
		finishFlag.y = finishPos.y + 50;
		instructionText.setText('FINAL BOSS! Navigate moving walls! Master all skills!');
	}
	// Create car
	car = new Car();
	car.x = startPos.x;
	car.y = startPos.y;
	car.engineWorking = false; // All levels now require manual control
	car.setVelocity(0, 0); // No automatic movement
	car.invulnerabilityTimer = 3000; // 3 seconds of invulnerability
	game.addChild(car);
	// Apply visual effect to show invulnerability
	tween(car, {
		alpha: 0.5
	}, {
		duration: 200,
		easing: tween.linear,
		onFinish: function onFinish() {
			tween(car, {
				alpha: 1
			}, {
				duration: 200,
				easing: tween.linear,
				onFinish: function onFinish() {
					// Continue flashing until invulnerability ends
					if (car.invulnerabilityTimer > 0) {
						tween(car, {
							alpha: 0.5
						}, {
							duration: 200,
							easing: tween.linear,
							onFinish: function onFinish() {
								tween(car, {
									alpha: 1
								}, {
									duration: 200,
									easing: tween.linear
								});
							}
						});
					}
				}
			});
		}
	});
	levelText.setText('Level ' + level);
	// Create start button
	if (startButton) startButton.destroy();
	if (startButtonText) startButtonText.destroy();
	startButton = game.addChild(LK.getAsset('startButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 150,
		y: 1366
	}));
	startButtonText = new Text2('START', {
		size: 40,
		fill: 0xffffff
	});
	startButtonText.anchor.set(0.5, 0.5);
	startButtonText.x = 150;
	startButtonText.y = 1366;
	game.addChild(startButtonText);
	// Create refresh button
	if (refreshButton) refreshButton.destroy();
	if (refreshButtonText) refreshButtonText.destroy();
	refreshButton = game.addChild(LK.getAsset('refreshButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 150,
		y: 1450
	}));
	refreshButtonText = new Text2('REFRESH', {
		size: 35,
		fill: 0xffffff
	});
	refreshButtonText.anchor.set(0.5, 0.5);
	refreshButtonText.x = 150;
	refreshButtonText.y = 1450;
	game.addChild(refreshButtonText);
	// Create reset button in top right corner
	if (resetButton) resetButton.destroy();
	if (resetButtonText) resetButtonText.destroy();
	resetButton = game.addChild(LK.getAsset('resetButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1948,
		y: 100
	}));
	resetButtonText = new Text2('RESET', {
		size: 30,
		fill: 0xffffff
	});
	resetButtonText.anchor.set(0.5, 0.5);
	resetButtonText.x = 1948;
	resetButtonText.y = 100;
	game.addChild(resetButtonText);
	// Create back button next to level text
	if (backButton) backButton.destroy();
	if (backButtonText) backButtonText.destroy();
	backButton = game.addChild(LK.getAsset('backButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 320,
		y: 100
	}));
	backButtonText = new Text2('BACK', {
		size: 30,
		fill: 0xffffff
	});
	backButtonText.anchor.set(0.5, 0.5);
	backButtonText.x = 320;
	backButtonText.y = 100;
	game.addChild(backButtonText);
	// Create pedal button for all levels
	if (pedalButton) pedalButton.destroy();
	if (pedalButtonText) pedalButtonText.destroy();
	pedalButton = game.addChild(LK.getAsset('pedal', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1900,
		y: 2600,
		scaleX: 2,
		scaleY: 2
	}));
	pedalButtonText = new Text2('PEDAL', {
		size: 30,
		fill: 0xffffff
	});
	pedalButtonText.anchor.set(0.5, 0.5);
	pedalButtonText.x = 1900;
	pedalButtonText.y = 2600;
	game.addChild(pedalButtonText);
	// Create brake button for all levels
	if (brakeButton) brakeButton.destroy();
	if (brakeButtonText) brakeButtonText.destroy();
	brakeButton = game.addChild(LK.getAsset('brake', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 150,
		y: 2600,
		scaleX: 2,
		scaleY: 2
	}));
	brakeButtonText = new Text2('BRAKE', {
		size: 30,
		fill: 0xffffff
	});
	brakeButtonText.anchor.set(0.5, 0.5);
	brakeButtonText.x = 150;
	brakeButtonText.y = 2600;
	game.addChild(brakeButtonText);
}
function checkLineCollision(line1Start, line1End, line2Start, line2End) {
	var x1 = line1Start.x;
	var y1 = line1Start.y;
	var x2 = line1End.x;
	var y2 = line1End.y;
	var x3 = line2Start.x;
	var y3 = line2Start.y;
	var x4 = line2End.x;
	var y4 = line2End.y;
	var denom = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4);
	if (Math.abs(denom) < 0.0001) return null;
	var t = ((x1 - x3) * (y3 - y4) - (y1 - y3) * (x3 - x4)) / denom;
	var u = -((x1 - x2) * (y1 - y3) - (y1 - y2) * (x1 - x3)) / denom;
	if (t >= 0 && t <= 1 && u >= 0 && u <= 1) {
		return {
			x: x1 + t * (x2 - x1),
			y: y1 + t * (y2 - y1)
		};
	}
	return null;
}
function createCarDestructionEffect() {
	if (!car) return;
	// Stop car movement
	car.velocityX = 0;
	car.velocityY = 0;
	car.engineWorking = false;
	// Create multiple car fragments for explosion effect
	var fragments = [];
	for (var i = 0; i < 8; i++) {
		var fragment = game.addChild(LK.getAsset('car', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: car.x,
			y: car.y,
			scaleX: 0.3,
			scaleY: 0.3,
			tint: 0xff0000
		}));
		fragments.push(fragment);
		// Random explosion direction
		var angle = Math.PI * 2 * i / 8;
		var distance = 100 + Math.random() * 100;
		var targetX = car.x + Math.cos(angle) * distance;
		var targetY = car.y + Math.sin(angle) * distance;
		// Animate fragment explosion
		tween(fragment, {
			x: targetX,
			y: targetY,
			rotation: Math.random() * Math.PI * 4,
			alpha: 0
		}, {
			duration: 800,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				fragment.destroy();
			}
		});
		// Scale animation
		tween(fragment.scale, {
			x: 0,
			y: 0
		}, {
			duration: 800,
			easing: tween.easeIn
		});
	}
	// Hide original car and restart level after animation
	car.alpha = 0;
	LK.setTimeout(function () {
		setupLevel(currentLevel);
	}, 1000);
}
function handleCarPhysics() {
	if (!car || !drawnLine || levelComplete || !carCanMove || !gameStarted) return;
	// Check invulnerability timer (3 seconds at start)
	if (car.invulnerabilityTimer > 0) {
		car.invulnerabilityTimer -= 16.67; // Approximately 1 frame at 60fps
		return; // Skip all collision checks while invulnerable
	}
	var carBottom = {
		x: car.x,
		y: car.y + 20
	};
	// Check collision with all drawn lines
	var onLine = false;
	var closestSegment = null;
	var closestDistance = Infinity;
	var closestCollision = null;
	for (var lineIndex = 0; lineIndex < drawnLines.length; lineIndex++) {
		var segments = drawnLines[lineIndex].getSegments();
		for (var i = 0; i < segments.length; i++) {
			var segment = segments[i];
			var carRay = {
				start: {
					x: car.x,
					y: car.y
				},
				end: {
					x: car.x,
					y: car.y + 30
				}
			};
			var collision = checkLineCollision(carRay.start, carRay.end, segment.start, segment.end);
			if (collision) {
				var distance = Math.abs(collision.y - car.y);
				if (distance < closestDistance) {
					closestDistance = distance;
					closestSegment = segment;
					closestCollision = collision;
					onLine = true;
				}
			}
		}
	}
	// If car is on a line, constrain it to follow the path
	if (onLine && closestSegment && closestCollision) {
		car.y = closestCollision.y - 20;
		car.velocityY = 0;
		var dx = closestSegment.end.x - closestSegment.start.x;
		var dy = closestSegment.end.y - closestSegment.start.y;
		var angle = Math.atan2(dy, dx);
		// Constrain car movement to follow the line direction
		var lineLength = Math.sqrt(dx * dx + dy * dy);
		var normalizedDx = dx / lineLength;
		var normalizedDy = dy / lineLength;
		// Check if the line is too steep (near vertical)
		var absoluteAngle = Math.abs(angle);
		var isNearVertical = absoluteAngle > Math.PI * 0.4 && absoluteAngle < Math.PI * 0.6 || absoluteAngle > Math.PI * 1.4 && absoluteAngle < Math.PI * 1.6;
		// For steep angles, maintain minimum horizontal movement to prevent getting stuck
		if (isNearVertical) {
			// Ensure car maintains some horizontal velocity to keep moving along steep paths
			var minHorizontalVel = 0.5;
			if (Math.abs(car.velocityX) < minHorizontalVel) {
				car.velocityX = car.velocityX >= 0 ? minHorizontalVel : -minHorizontalVel;
			}
		}
		// Project car velocity onto the line direction
		var projectionMagnitude = car.velocityX * normalizedDx + car.velocityY * normalizedDy;
		car.velocityX = projectionMagnitude * normalizedDx;
		car.velocityY = projectionMagnitude * normalizedDy;
		// Apply slope physics with reduced intensity for steep angles
		var slopeIntensity = isNearVertical ? 0.1 : 0.2;
		var slopeAcceleration = Math.sin(angle) * slopeIntensity;
		car.velocityX += Math.cos(angle) * slopeAcceleration;
		car.velocityY += Math.sin(angle) * slopeAcceleration;
		// Apply general friction
		var frictionFactor = 0.98;
		if (Math.sin(angle) > 0) {
			// Going downhill - less friction
			frictionFactor = 0.995;
		} else if (Math.sin(angle) < 0) {
			// Going uphill - more friction, but less for steep angles to prevent stalling
			frictionFactor = isNearVertical ? 0.97 : 0.96;
		}
		car.velocityX *= frictionFactor;
		car.velocityY *= frictionFactor;
		// Limit rotation angle to prevent completely vertical orientation
		var maxRotation = Math.PI * 0.45; // 45 degrees max
		if (Math.abs(angle) > maxRotation && Math.abs(angle) < Math.PI - maxRotation) {
			car.rotation = angle > 0 ? maxRotation : -maxRotation;
		} else if (Math.abs(angle) > Math.PI + maxRotation && Math.abs(angle) < 2 * Math.PI - maxRotation) {
			car.rotation = angle > Math.PI ? Math.PI + maxRotation : Math.PI - maxRotation;
		} else {
			car.rotation = angle;
		}
	}
	car.onGround = onLine;
	// Check collision with trampolines
	for (var i = 0; i < trampolines.length; i++) {
		if (car.intersects(trampolines[i])) {
			car.velocityY = -7.5; // Reduced from -15 to half
			trampolines[i].bounce();
			LK.getSound('bounce').play();
			// Skip wall collision check this frame to prevent explosion
			return;
		}
	}
	// Check if car reached finish
	var distToFinish = Math.sqrt(Math.pow(car.x - finishPos.x, 2) + Math.pow(car.y - finishPos.y, 2));
	if (distToFinish < 100) {
		levelComplete = true;
		LK.getSound('success').play();
		currentLevel++;
		storage.currentLevel = currentLevel;
		if (currentLevel > maxLevel) {
			LK.setScore(100);
			LK.showYouWin();
		} else {
			LK.setTimeout(function () {
				setupLevel(currentLevel);
			}, 1500);
		}
	}
	// Check collision with walls - only trigger when car actually touches wall
	for (var i = 0; i < walls.length; i++) {
		var wall = walls[i];
		// Get wall bounds
		var wallLeft = wall.x - wall.width * wall.scaleX / 2;
		var wallRight = wall.x + wall.width * wall.scaleX / 2;
		var wallTop = wall.y - wall.height * wall.scaleY / 2;
		var wallBottom = wall.y + wall.height * wall.scaleY / 2;
		// Get car bounds
		var carLeft = car.x - 40;
		var carRight = car.x + 40;
		var carTop = car.y - 20;
		var carBottom = car.y + 20;
		// Check if car is actually touching the wall (not just near it)
		var touchingHorizontally = carRight >= wallLeft && carLeft <= wallRight;
		var touchingVertically = carBottom >= wallTop && carTop <= wallBottom;
		if (touchingHorizontally && touchingVertically) {
			// Car is actually touching the wall - create destruction effect
			createCarDestructionEffect();
			return; // Exit early to prevent further physics
		}
	}
	// Check if car fell off screen
	if (car.y > 2732) {
		setupLevel(currentLevel);
	}
}
game.down = function (x, y, obj) {
	if (levelComplete) return;
	// Check if start button clicked
	if (startButton && Math.abs(x - startButton.x) < 75 && Math.abs(y - startButton.y) < 30) {
		// Only start if we have drawn at least one line
		if (drawnLines.length > 0 && !gameStarted) {
			gameStarted = true;
			carCanMove = true;
			startButton.tint = 0x888888;
		}
		return;
	}
	// Check if refresh button clicked
	if (refreshButton && Math.abs(x - refreshButton.x) < 75 && Math.abs(y - refreshButton.y) < 30) {
		// Reset current level
		setupLevel(currentLevel);
		return;
	}
	// Check if reset button clicked
	if (resetButton && Math.abs(x - resetButton.x) < 60 && Math.abs(y - resetButton.y) < 25) {
		// Reset everything - go back to level 1
		currentLevel = 1;
		storage.currentLevel = 1;
		setupLevel(currentLevel);
		return;
	}
	// Check if back button clicked
	if (backButton && Math.abs(x - 320) < 60 && Math.abs(y - backButton.y) < 25) {
		// Go back to previous level if not at level 1
		if (currentLevel > 1) {
			currentLevel--;
			storage.currentLevel = currentLevel;
			setupLevel(currentLevel);
		}
		return;
	}
	// Check if pedal button clicked for all levels
	if (pedalButton && gameStarted && Math.abs(x - pedalButton.x) < 120 && Math.abs(y - pedalButton.y) < 80) {
		pedalButtonPressed = true;
		pedalAcceleration = 0.5; // Start with slow acceleration
		return;
	}
	// Check if brake button clicked for all levels
	if (brakeButton && gameStarted && Math.abs(x - brakeButton.x) < 120 && Math.abs(y - brakeButton.y) < 80) {
		brakeButtonPressed = true;
		brakeAcceleration = 0.5; // Start with slow acceleration
		return;
	}
	// Check if starting from behind the car and haven't reached line limit
	if (x < car.x - 50 && !gameStarted && currentLineCount < maxLines) {
		isDrawing = true;
		drawnLine = new DrawnLine();
		game.addChild(drawnLine);
		drawnLine.addPoint(x, y);
	}
};
game.move = function (x, y, obj) {
	if (isDrawing && drawnLine) {
		drawnLine.addPoint(x, y);
	}
};
game.up = function (x, y, obj) {
	if (isDrawing && drawnLine) {
		// Don't automatically allow car to move - wait for start button
		// Store the completed line and increment counter
		drawnLines.push(drawnLine);
		currentLineCount++;
		// Update line counter display
		if (game.lineCounterText) {
			game.lineCounterText.setText('Lines: ' + (maxLines - currentLineCount) + '/' + maxLines);
		}
	}
	// Reset brake and pedal button states when mouse/touch is released
	brakeButtonPressed = false;
	brakeAcceleration = 0;
	pedalButtonPressed = false;
	pedalAcceleration = 0;
	isDrawing = false;
};
game.update = function () {
	// Handle brake button progressive acceleration
	if (brakeButtonPressed && gameStarted && car) {
		// Gradually increase brake acceleration while button is held
		if (brakeAcceleration < maxBrakeAcceleration) {
			brakeAcceleration += brakeAccelerationIncrement;
		}
		// Apply reverse movement with current acceleration
		car.velocityX -= brakeAcceleration;
		car.velocityY -= brakeAcceleration * 0.5; // Small upward component
	}
	// Handle pedal button progressive acceleration
	if (pedalButtonPressed && gameStarted && car) {
		// Gradually increase pedal acceleration while button is held
		if (pedalAcceleration < maxPedalAcceleration) {
			pedalAcceleration += pedalAccelerationIncrement;
		}
		// Apply forward movement with current acceleration
		car.velocityX += pedalAcceleration;
		car.velocityY -= pedalAcceleration * 0.4; // Small upward component
	}
	handleCarPhysics();
	// Move trampolines if they have movement properties
	for (var i = 0; i < trampolines.length; i++) {
		var trampoline = trampolines[i];
		if (trampoline.moveDirection !== undefined) {
			trampoline.x += trampoline.moveDirection * trampoline.moveSpeed;
			// Bounce off boundaries
			if (trampoline.x <= trampoline.minX || trampoline.x >= trampoline.maxX) {
				trampoline.moveDirection *= -1;
			}
		}
	}
	// Create smoke particles when car is moving
	if (car && gameStarted && carCanMove && (Math.abs(car.velocityX) > 0.5 || Math.abs(car.velocityY) > 0.5)) {
		smokeTimer++;
		if (smokeTimer % 4 === 0) {
			// Create smoke every 4 frames
			var smoke = new SmokeParticle();
			// Position smoke behind the car based on its rotation
			var offsetX = -Math.cos(car.rotation) * 40;
			var offsetY = -Math.sin(car.rotation) * 40;
			smoke.init(car.x + offsetX, car.y + offsetY);
			game.addChild(smoke);
			smokeParticles.push(smoke);
		}
	}
	// Clean up old smoke particles
	for (var i = smokeParticles.length - 1; i >= 0; i--) {
		if (smokeParticles[i].alpha <= 0) {
			smokeParticles[i].destroy();
			smokeParticles.splice(i, 1);
		}
	}
};
// Initialize first level
setupLevel(currentLevel);

===================================================================
--- original.js
+++ change.js
@@ -1372,9 +1372,44 @@
 	car.x = startPos.x;
 	car.y = startPos.y;
 	car.engineWorking = false; // All levels now require manual control
 	car.setVelocity(0, 0); // No automatic movement
+	car.invulnerabilityTimer = 3000; // 3 seconds of invulnerability
 	game.addChild(car);
+	// Apply visual effect to show invulnerability
+	tween(car, {
+		alpha: 0.5
+	}, {
+		duration: 200,
+		easing: tween.linear,
+		onFinish: function onFinish() {
+			tween(car, {
+				alpha: 1
+			}, {
+				duration: 200,
+				easing: tween.linear,
+				onFinish: function onFinish() {
+					// Continue flashing until invulnerability ends
+					if (car.invulnerabilityTimer > 0) {
+						tween(car, {
+							alpha: 0.5
+						}, {
+							duration: 200,
+							easing: tween.linear,
+							onFinish: function onFinish() {
+								tween(car, {
+									alpha: 1
+								}, {
+									duration: 200,
+									easing: tween.linear
+								});
+							}
+						});
+					}
+				}
+			});
+		}
+	});
 	levelText.setText('Level ' + level);
 	// Create start button
 	if (startButton) startButton.destroy();
 	if (startButtonText) startButtonText.destroy();
@@ -1556,8 +1591,13 @@
 	}, 1000);
 }
 function handleCarPhysics() {
 	if (!car || !drawnLine || levelComplete || !carCanMove || !gameStarted) return;
+	// Check invulnerability timer (3 seconds at start)
+	if (car.invulnerabilityTimer > 0) {
+		car.invulnerabilityTimer -= 16.67; // Approximately 1 frame at 60fps
+		return; // Skip all collision checks while invulnerable
+	}
 	var carBottom = {
 		x: car.x,
 		y: car.y + 20
 	};