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

/**** 
* Classes
****/ 
// Bonus Item Class
var Bonus = Container.expand(function () {
	var self = Container.call(this);
	// 50 simple bonus types, all using the same asset but different type strings
	var types = [];
	for (var i = 1; i <= 40; i++) {
		types.push({
			id: 'bonus',
			type: 'score' + i
		});
	}
	// Add new fun bonus types!
	types.push({
		id: 'bonus',
		type: 'shield'
	});
	types.push({
		id: 'bonus',
		type: 'double'
	});
	types.push({
		id: 'bonus',
		type: 'slowmo'
	}); // Slow motion for a short time
	types.push({
		id: 'bonus',
		type: 'shrink'
	}); // Shrink player for a short time
	types.push({
		id: 'bonus',
		type: 'invincible'
	}); // Invincible for a short time
	types.push({
		id: 'bonus',
		type: 'teleport'
	}); // Teleport player to random lane
	types.push({
		id: 'bonus',
		type: 'clear'
	}); // Clear all obstacles/enemies
	types.push({
		id: 'bonus',
		type: 'magnet'
	}); // Attract bonuses for a short time
	types.push({
		id: 'bonus',
		type: 'reverse'
	}); // Reverse enemy direction for a short time
	types.push({
		id: 'bonus',
		type: 'score'
	}); // fallback classic
	var chosen = types[Math.floor(Math.random() * types.length)];
	self.type = chosen.type;
	// Use different tints for power-ups
	var tint = 0xffffff;
	if (self.type === 'shield') tint = 0x42a5f5;else if (self.type === 'double') tint = 0xffd600;else {
		// Give each score bonus a different color for fun
		// Cycle through a palette
		var palette = [0xffffff, 0xffe082, 0x80cbc4, 0xffab91, 0xb39ddb, 0xa5d6a7, 0xffccbc, 0x90caf9, 0xf48fb1, 0xc5e1a5, 0xffecb3, 0xb0bec5, 0xd7ccc8, 0xffb74d, 0x81d4fa, 0xe1bee7, 0xc8e6c9, 0xff8a65, 0x9575cd, 0x4db6ac, 0x7986cb, 0x64b5f6, 0xffd54f, 0x4fc3f7, 0x81c784, 0xba68c8, 0x4dd0e1, 0xf06292, 0xa1887f, 0x90a4ae, 0x388e3c, 0xdce775, 0x00bcd4, 0x8d6e63, 0x43a047, 0x00acc1, 0x689f38, 0x039be5, 0x7e57c2, 0x0288d1, 0x0097a7, 0x388e3c, 0x1976d2, 0x0288d1, 0x009688, 0x43a047, 0x689f38];
		// Extract number from type string, e.g. "score17" -> 17
		var idx = 0;
		if (self.type.indexOf('score') === 0 && self.type.length > 5) {
			idx = parseInt(self.type.substring(5), 10) - 1;
			if (isNaN(idx) || idx < 0) idx = 0;
		}
		tint = palette[idx % palette.length];
	}
	var b = self.attachAsset(chosen.id, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	b.tint = tint;
	self.width = b.width;
	self.height = b.height;
	self.speed = 18 + Math.random() * 8; // Will be set by game
	self.lane = 0;
	self.update = function () {
		self.y += self.speed;
	};
	self.getBounds = function () {
		// Shrink hitbox for better gameplay feel
		var w = b.width * 0.7;
		var h = b.height * 0.7;
		return {
			x: self.x - w / 2,
			y: self.y - h / 2,
			width: w,
			height: h
		};
	};
	return self;
});
// Enemy Car Class
var EnemyCar = Container.expand(function () {
	var self = Container.call(this);
	// Randomly select one of the enemy car asset ids
	var enemyCarIds = ['enemyCar', 'enemyCar2', 'enemyCar3', 'enemyCar4'];
	var chosenId = enemyCarIds[Math.floor(Math.random() * enemyCarIds.length)];
	var car = self.attachAsset(chosenId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = car.width;
	self.height = car.height;
	self.speed = 18 + Math.random() * 8; // Will be set by game
	self.lane = 0;
	self.update = function () {
		// Store lastX and lastY for event triggers and lane change logic
		if (typeof self.lastX === "undefined") self.lastX = self.x;
		if (typeof self.lastY === "undefined") self.lastY = self.y;
		// Before moving, check if moving would cause overlap with any obstacle or enemy car in the same lane
		var nextY = self.y + self.speed;
		var canMove = true;
		// Check with obstacles in same lane
		for (var i = 0; i < obstacles.length; i++) {
			var obs = obstacles[i];
			if (obs.lane === self.lane) {
				var myBounds = {
					x: self.x - self.width * 0.35,
					y: nextY - self.height * 0.35,
					width: self.width * 0.7,
					height: self.height * 0.7
				};
				var obsBounds = obs.getBounds();
				if (!(myBounds.x + myBounds.width < obsBounds.x || myBounds.x > obsBounds.x + obsBounds.width || myBounds.y + myBounds.height < obsBounds.y || myBounds.y > obsBounds.y + obsBounds.height)) {
					canMove = false;
					break;
				}
			}
		}
		// Check with other enemy cars in same lane
		if (canMove) {
			for (var i = 0; i < enemyCars.length; i++) {
				var other = enemyCars[i];
				if (other !== self && other.lane === self.lane) {
					var myBounds = {
						x: self.x - self.width * 0.35,
						y: nextY - self.height * 0.35,
						width: self.width * 0.7,
						height: self.height * 0.7
					};
					var otherBounds = other.getBounds();
					if (!(myBounds.x + myBounds.width < otherBounds.x || myBounds.x > otherBounds.x + otherBounds.width || myBounds.y + myBounds.height < otherBounds.y || myBounds.y > otherBounds.y + otherBounds.height)) {
						canMove = false;
						break;
					}
				}
			}
		}
		if (canMove) {
			self.y = nextY;
		}
		// Randomly decide to change lane (only if not already changing, and not too often)
		// Each enemy car can only change lane once, and only by one lane left or right
		if (typeof self._hasChangedLane === "undefined") self._hasChangedLane = false;
		if (!self._laneChangeCooldown) self._laneChangeCooldown = 0;
		if (!self._isChangingLane) self._isChangingLane = false;
		// Only allow lane change if not currently changing, not near the bottom, and not already changed lane
		if (!self._isChangingLane && self._laneChangeCooldown <= 0 && self.y > 0 && self.y < 2200 && !self._hasChangedLane) {
			// Add probability for lane change: 1% chance (further reduced from 3%)
			var laneChangeProbability = 0.01;
			if (Math.random() < laneChangeProbability) {
				// Only allow to change to adjacent lane (left or right by 1)
				var availableLanes = [];
				for (var offset = -1; offset <= 1; offset += 2) {
					var testLane = self.lane + offset;
					if (testLane < 0 || testLane >= laneCenters.length) continue;
					var canChange = true;
					// Check for other enemy cars in the target lane, close in Y
					for (var i = 0; i < enemyCars.length; i++) {
						var other = enemyCars[i];
						if (other !== self && other.lane === testLane && Math.abs(other.y - self.y) < self.height * 1.2) {
							canChange = false;
							break;
						}
					}
					// Check for obstacles in the target lane, close in Y
					if (canChange) {
						for (var i = 0; i < obstacles.length; i++) {
							var obs = obstacles[i];
							if (obs.lane === testLane && Math.abs(obs.y - self.y) < self.height * 1.2) {
								canChange = false;
								break;
							}
						}
					}
					// Check for bonuses in the target lane, close in Y (prevent lane change if would overlap a bonus)
					if (canChange && typeof bonuses !== "undefined") {
						for (var i = 0; i < bonuses.length; i++) {
							var bonus = bonuses[i];
							if (bonus.lane === testLane) {
								// Predict where self would be after lane change (same y, new lane)
								var myBounds = {
									x: laneCenters[testLane] - self.width * 0.35,
									y: self.y - self.height * 0.35,
									width: self.width * 0.7,
									height: self.height * 0.7
								};
								var bonusBounds = bonus.getBounds();
								if (!(myBounds.x + myBounds.width < bonusBounds.x || myBounds.x > bonusBounds.x + bonusBounds.width || myBounds.y + myBounds.height < bonusBounds.y || myBounds.y > bonusBounds.y + bonusBounds.height)) {
									canChange = false;
									break;
								}
							}
						}
					}
					// Prevent two cars from moving into the same lane and overlapping during lane change
					if (canChange) {
						for (var i = 0; i < enemyCars.length; i++) {
							var other = enemyCars[i];
							if (other !== self && other._isChangingLane && other._targetLane === testLane) {
								// Predict where both cars will be during lane change
								var myTargetY = self.y;
								var otherTargetY = other.y;
								// If Y overlap at the end of lane change, block
								if (Math.abs(myTargetY - otherTargetY) < self.height * 1.2) {
									canChange = false;
									break;
								}
							}
						}
					}
					if (canChange) {
						availableLanes.push(testLane);
					}
				}
				// If there is at least one available adjacent lane, pick one randomly and change
				if (availableLanes.length > 0) {
					var newLane = availableLanes[Math.floor(Math.random() * availableLanes.length)];
					// Begin lane change
					self._isChangingLane = true;
					self._targetLane = newLane;
					self._laneChangeStartX = self.x;
					self._laneChangeStartY = self.y;
					self._laneChangeProgress = 0;
					self._laneChangeDuration = 18 + Math.floor(Math.random() * 10); // frames
					self._hasChangedLane = true; // Mark as changed lane, so only once
				}
			}
		}
		// If currently changing lane, animate X toward new lane center using tween
		if (self._isChangingLane) {
			if (!self._laneTweenStarted) {
				self._laneTweenStarted = true;
				tween(self, {
					x: laneCenters[self._targetLane]
				}, {
					duration: self._laneChangeDuration * 16,
					easing: tween.easeInOutSine,
					onFinish: function onFinish() {
						self.x = laneCenters[self._targetLane];
						self.lane = self._targetLane;
						self._isChangingLane = false;
						self._laneChangeCooldown = 60 + Math.floor(Math.random() * 60);
						self._laneTweenStarted = false;
					}
				});
			}
		} else {
			self._laneTweenStarted = false;
			// Not changing lane, decrement cooldown if needed
			if (self._laneChangeCooldown > 0) self._laneChangeCooldown--;
		}
		// Update lastX and lastY for next frame
		self.lastX = self.x;
		self.lastY = self.y;
	};
	self.getBounds = function () {
		// Shrink hitbox for better gameplay feel
		var w = car.width * 0.7;
		var h = car.height * 0.7;
		return {
			x: self.x - w / 2,
			y: self.y - h / 2,
			width: w,
			height: h
		};
	};
	return self;
});
// Obstacle Class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obs = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = obs.width;
	self.height = obs.height;
	self.speed = 18 + Math.random() * 8; // Will be set by game
	self.lane = 0;
	self.update = function () {
		// Before moving, check if moving would cause overlap with any enemy car or obstacle in the same lane
		var nextY = self.y + self.speed;
		var canMove = true;
		// Check with enemy cars in same lane
		for (var i = 0; i < enemyCars.length; i++) {
			var car = enemyCars[i];
			if (car.lane === self.lane) {
				var myBounds = {
					x: self.x - self.width * 0.35,
					y: nextY - self.height * 0.35,
					width: self.width * 0.7,
					height: self.height * 0.7
				};
				var carBounds = car.getBounds();
				if (!(myBounds.x + myBounds.width < carBounds.x || myBounds.x > carBounds.x + carBounds.width || myBounds.y + myBounds.height < carBounds.y || myBounds.y > carBounds.y + carBounds.height)) {
					canMove = false;
					break;
				}
			}
		}
		// Check with other obstacles in same lane
		if (canMove) {
			for (var i = 0; i < obstacles.length; i++) {
				var other = obstacles[i];
				if (other !== self && other.lane === self.lane) {
					var myBounds = {
						x: self.x - self.width * 0.35,
						y: nextY - self.height * 0.35,
						width: self.width * 0.7,
						height: self.height * 0.7
					};
					var otherBounds = other.getBounds();
					if (!(myBounds.x + myBounds.width < otherBounds.x || myBounds.x > otherBounds.x + otherBounds.width || myBounds.y + myBounds.height < otherBounds.y || myBounds.y > otherBounds.y + otherBounds.height)) {
						canMove = false;
						break;
					}
				}
			}
		}
		if (canMove) {
			self.y = nextY;
		}
	};
	self.getBounds = function () {
		// Shrink hitbox for better gameplay feel
		var w = obs.width * 0.7;
		var h = obs.height * 0.7;
		return {
			x: self.x - w / 2,
			y: self.y - h / 2,
			width: w,
			height: h
		};
	};
	return self;
});
// Player Car Class
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var car = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.55,
		scaleY: 0.55
	});
	self._carAsset = car; // Store reference for shrink/restore
	self.width = car.width * 0.55;
	self.height = car.height * 0.55;
	// For touch drag offset
	self.dragOffsetX = 0;
	self.dragOffsetY = 0;
	// For collision
	self.getBounds = function () {
		// Shrink hitbox for better gameplay feel
		var w = car.width * 0.55;
		var h = car.height * 0.55;
		return {
			x: self.x - w / 2,
			y: self.y - h / 2,
			width: w,
			height: h
		};
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x222222
});

/**** 
* Game Code
****/ 
// Intense mode music (for hard stage, optional)
// Main background music (looped)
// --- MUSIC ---
// Win
// Game over
// Button tap (UI)
// Lane change (player moves to another lane)
// Reverse pickup
// Magnet pickup
// Clear pickup
// Teleport pickup
// Invincible pickup
// Shrink pickup
// Slowmo pickup
// Double score pickup
// Shield pickup
// Bonus pickup
// Car crash
// Car engine accelerate (short burst)
// Car engine idle (looped quietly in background)
// --- SOUND EFFECTS ---
// Tree and plant assets for background
// Road and lane setup
// Car (player)
// Enemy car
// Obstacle (barrier)
// Road lane
// Bonus item
var roadWidth = 900;
var roadLeft = (2048 - roadWidth) / 2;
var roadRight = roadLeft + roadWidth;
var laneCount = 4;
var laneWidth = roadWidth / laneCount;
var laneCenters = [];
for (var i = 0; i < laneCount; i++) {
	laneCenters.push(roadLeft + laneWidth / 2 + i * laneWidth);
}
// --- Add colorful trees and plants to left and right sides of the road as background ---
var bgDecor = [];
var decorTypes = [{
	id: 'tree1',
	yOffset: 0
}, {
	id: 'tree2',
	yOffset: 40
}, {
	id: 'plant1',
	yOffset: 120
}, {
	id: 'plant2',
	yOffset: 180
}, {
	id: 'plant3',
	yOffset: 240
}, {
	id: 'plant3',
	yOffset: 240
}, {
	id: 'plant3',
	yOffset: 240
}, {
	id: 'plant3',
	yOffset: 240
}, {
	// extra plant3 for higher probability
	id: 'plant3',
	yOffset: 240
}, {
	id: 'plant3',
	yOffset: 240
}, {
	id: 'plant3',
	yOffset: 240
}];
// Place decorations in a staggered, repeating pattern, but less frequently
for (var side = 0; side < 2; side++) {
	// 0: left, 1: right
	for (var i = 0; i < 4; i++) {
		// Reduced from 8 to 4 for lower frequency
		var typeIdx = i % decorTypes.length;
		var decor = LK.getAsset(decorTypes[typeIdx].id, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// X position: left or right of road, with some random offset for natural look
		if (side === 0) {
			decor.x = roadLeft - 90 + Math.random() * 30;
		} else {
			decor.x = roadRight + 90 - Math.random() * 30;
		}
		// Y position: staggered vertically, with some random offset, spacing increased for less density
		decor.y = 300 + i * 640 + decorTypes[typeIdx].yOffset + Math.random() * 40;
		// Store for scrolling
		decor._baseY = decor.y;
		decor._side = side;
		decor._typeIdx = typeIdx;
		game.addChild(decor);
		bgDecor.push(decor);
	}
}
// Draw lane markers (scrolling effect)
var laneMarkers = [];
for (var i = 1; i < laneCount; i++) {
	for (var j = 0; j < 6; j++) {
		var marker = LK.getAsset('lane', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: roadLeft + i * laneWidth,
			y: j * 400
		});
		marker.laneIdx = i;
		marker.offsetIdx = j;
		game.addChild(marker);
		laneMarkers.push(marker);
	}
}
// Player car
var player = new PlayerCar();
player.x = laneCenters[1];
player.y = 2732 - 500;
game.addChild(player);
// --- Bonus effect indicator above player ---
var bonusIcon = new Text2('', {
	size: 90,
	fill: "#fff",
	font: "Arial"
});
bonusIcon.anchor.set(0.5, 1);
bonusIcon.x = player.x;
bonusIcon.y = player.y - player.height / 2 - 30;
bonusIcon.alpha = 0;
game.addChild(bonusIcon);
// Score
var score = 0;
var scoreTxt = new Text2('0', {
	size: 120,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// High score tracking and display (top left, just right of menu area)
var highScore = storage.highScore || 0;
var highScoreTxt = new Text2('HIGH SCORE: ' + highScore, {
	size: 38,
	fill: 0xFF0000,
	font: "Arial"
});
highScoreTxt.anchor.set(0, 0);
// Place high score at x=-700 (as requested), y=0
highScoreTxt.x = -700;
highScoreTxt.y = 0;
LK.gui.top.addChild(highScoreTxt);
// Player health (lives)
var playerHealth = 3;
// Heart bar for health (top left, outside menu area)
var healthBarHearts = [];
function updateHealthBar() {
	// Remove old hearts
	for (var i = 0; i < healthBarHearts.length; i++) {
		if (healthBarHearts[i].parent) healthBarHearts[i].parent.removeChild(healthBarHearts[i]);
	}
	healthBarHearts = [];
	// Draw hearts for each health
	var heartSize = 80;
	var margin = 18;
	for (var i = 0; i < playerHealth; i++) {
		var heart = new Text2('❤️', {
			size: heartSize,
			fill: 0xFF4444,
			font: "Arial"
		});
		heart.anchor.set(0, 0);
		// Place hearts horizontally, starting after menu area (x=260)
		heart.x = 260 + i * (heartSize + margin);
		heart.y = 0;
		LK.gui.top.addChild(heart);
		healthBarHearts.push(heart);
	}
	// If health is 0, show empty heart faded
	if (playerHealth <= 0) {
		var heart = new Text2('❤️', {
			size: heartSize,
			fill: 0x888888,
			font: "Arial"
		});
		heart.anchor.set(0, 0);
		heart.x = 260;
		heart.y = 0;
		heart.alpha = 0.4;
		LK.gui.top.addChild(heart);
		healthBarHearts.push(heart);
	}
}
updateHealthBar();
// Bonus score
var bonusScore = 0;
var bonusTxt = new Text2('', {
	size: 70,
	fill: 0xFFFA00 // Bright yellow for high visibility
});
bonusTxt.anchor.set(0.5, 0);
// Move the bonus text further down (e.g. 180px from the top)
bonusTxt.y = 180;
LK.gui.top.addChild(bonusTxt);
// Bonus usage count text
var bonusUsageCount = 0;
var bonusUsageTxt = new Text2('', {
	size: 70,
	fill: "#fff",
	font: "Arial"
});
bonusUsageTxt.anchor.set(0.5, 0);
// Place below the score, but above the bonusTxt
bonusUsageTxt.y = 120;
LK.gui.top.addChild(bonusUsageTxt);
// Game state
var enemyCars = [];
var obstacles = [];
var bonuses = [];
var gameSpeed = 18;
var ticksSinceStart = 0;
var lastSpawnTick = 0;
var lastBonusTick = 0;
var isDragging = false;
var dragStartX = 0;
var dragStartY = 0;
var playerStartX = 0;
var playerStartY = 0;
var lastCrash = false;
// Mouse/touch drag to move player car directly with finger/mouse
var isDragging = false;
var dragStartX = 0;
var dragStartY = 0;
var playerStartX = 0;
var playerStartY = 0;
game.down = function (x, y, obj) {
	// Only start drag if touch/click is on the player car
	// Use a generous hitbox for mobile
	var bounds = player.getBounds();
	if (x >= bounds.x - 60 && x <= bounds.x + bounds.width + 60 && y >= bounds.y - 60 && y <= bounds.y + bounds.height + 60) {
		isDragging = true;
		dragStartX = x;
		dragStartY = y;
		playerStartX = player.x;
		playerStartY = player.y;
		// Cancel any lane tween if present
		if (typeof playerMoveTween !== "undefined" && playerMoveTween && playerMoveTween.cancel) playerMoveTween.cancel();
	}
};
game.move = function (x, y, obj) {
	if (isDragging) {
		// Move player car with finger/mouse, but clamp to road
		var dx = x - dragStartX;
		var dy = y - dragStartY;
		var newX = playerStartX + dx;
		var newY = playerStartY + dy;
		// Clamp X to road
		var minX = roadLeft + player.width / 2;
		var maxX = roadRight - player.width / 2;
		if (newX < minX) newX = minX;
		if (newX > maxX) newX = maxX;
		// Clamp Y to visible area (bottom 2/3 of screen)
		var minY = 600 + player.height / 2;
		var maxY = 2732 - player.height / 2;
		if (newY < minY) newY = minY;
		if (newY > maxY) newY = maxY;
		// Prevent overlap with enemy cars and obstacles
		var tempPlayer = {
			getBounds: function getBounds() {
				// Use the same getBounds as player, but at newX, newY
				var w = player.width;
				var h = player.height;
				return {
					x: newX - w / 2,
					y: newY - h / 2,
					width: w,
					height: h
				};
			}
		};
		var overlap = false;
		// Check with enemy cars
		for (var i = 0; i < enemyCars.length; i++) {
			if (intersects(tempPlayer, enemyCars[i])) {
				overlap = true;
				break;
			}
		}
		// Check with obstacles
		if (!overlap) {
			for (var i = 0; i < obstacles.length; i++) {
				if (intersects(tempPlayer, obstacles[i])) {
					overlap = true;
					break;
				}
			}
		}
		// Only move if not overlapping
		if (!overlap) {
			// Play lane change sound if player changed lane (by X)
			if (Math.abs(player.x - newX) > laneWidth * 0.8) {
				LK.getSound('lane_change').play();
			}
			// Instantly move player car to finger position for direct control
			player.x = newX;
			player.y = newY;
		}
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
// Helper: collision check (AABB)
function intersects(a, b) {
	var ab = a.getBounds();
	var bb = b.getBounds();
	return ab.x < bb.x + bb.width && ab.x + ab.width > bb.x && ab.y < bb.y + bb.height && ab.y + ab.height > bb.y;
}
// Main game loop
game.update = function () {
	ticksSinceStart++;
	// 3-stage difficulty progression: very easy, then medium, then hard
	// Very Easy: 0-3000 ticks (~50s), Medium: 3000-6000 ticks (~100s), Hard: 6000+ ticks
	if (!game._spawnInterval) game._spawnInterval = 40;
	if (ticksSinceStart < 3000) {
		// Very Easy: very slow ramp up
		if (ticksSinceStart % 600 == 0 && gameSpeed < 20) {
			gameSpeed += 1;
		}
		if (ticksSinceStart % 600 == 0 && game._spawnInterval > 32) {
			game._spawnInterval -= 1;
		}
	} else if (ticksSinceStart < 6000) {
		// Medium: moderate ramp up
		if (ticksSinceStart % 300 == 0 && gameSpeed < 28) {
			gameSpeed += 1;
		}
		if (ticksSinceStart % 300 == 0 && game._spawnInterval > 20) {
			game._spawnInterval -= 1;
		}
	} else {
		// Hard: faster ramp up, but cap
		if (ticksSinceStart % 120 == 0 && gameSpeed < 38) {
			gameSpeed += 1;
		}
		if (ticksSinceStart % 120 == 0 && game._spawnInterval > 14) {
			game._spawnInterval -= 1;
		}
	}
	// Move background trees and plants for scrolling effect
	for (var i = 0; i < bgDecor.length; i++) {
		var decor = bgDecor[i];
		decor.y += gameSpeed;
		// If decor goes off bottom, loop to top with new random offset for variety
		if (decor.y > 2732 + 120) {
			decor.y -= 8 * 320;
			decor.y += Math.random() * 40 - 20;
			// Optionally randomize X a bit for more natural look
			if (decor._side === 0) {
				decor.x = roadLeft - 90 + Math.random() * 30;
			} else {
				decor.x = roadRight + 90 - Math.random() * 30;
			}
		}
	}
	// Move lane markers for scrolling effect
	for (var i = 0; i < laneMarkers.length; i++) {
		var marker = laneMarkers[i];
		marker.y += gameSpeed;
		if (marker.y > 2732) {
			marker.y -= 2400;
		}
	}
	// Spawn enemy cars and obstacles, ensuring no overlap with any existing object
	if (ticksSinceStart - lastSpawnTick > (game._spawnInterval || 36)) {
		lastSpawnTick = ticksSinceStart;
		// Randomly pick lanes to spawn cars/obstacles, but always leave at least one lane empty for the player to pass
		var spawnLanes = [];
		for (var i = 0; i < laneCount; i++) {
			if (Math.random() < 0.5) spawnLanes.push(i);
		}
		// Always leave at least one lane empty: if all lanes are filled, remove one at random
		if (spawnLanes.length >= laneCount) {
			var idxToRemove = Math.floor(Math.random() * spawnLanes.length);
			spawnLanes.splice(idxToRemove, 1);
		}
		// If no lanes selected, force one random lane to be filled
		if (spawnLanes.length == 0) spawnLanes.push(Math.floor(Math.random() * laneCount));
		// Limit to max 3 obstacles per spawn
		var obstacleCountThisSpawn = 0;
		// Track which lanes will have obstacles this spawn
		var obstacleLanesThisSpawn = [];
		// Track which lanes are used (to prevent both enemy and obstacle in same lane)
		var usedLanes = {};
		// Track all new objects to check for overlap
		var newObjects = [];
		for (var i = 0; i < spawnLanes.length; i++) {
			var laneIdx = spawnLanes[i];
			// If already 3 obstacles, force enemy car for the rest
			var forceEnemy = obstacleCountThisSpawn >= 3;
			// Only allow one object per lane (no overlap of enemy/obstacle)
			if (usedLanes[laneIdx]) continue;
			// Determine spawn Y and type
			var spawnY,
				obj,
				isObstacle = false;
			if (!forceEnemy && Math.random() >= 0.7) {
				// Obstacle
				obj = new Obstacle();
				obj.x = laneCenters[laneIdx];
				obj.y = -100;
				obj.speed = gameSpeed;
				obj.lane = laneIdx;
				spawnY = obj.y;
				isObstacle = true;
			} else {
				// Enemy car
				obj = new EnemyCar();
				obj.x = laneCenters[laneIdx];
				obj.y = -200;
				obj.speed = gameSpeed;
				obj.lane = laneIdx;
				spawnY = obj.y;
			}
			// Check for overlap with all existing objects (enemyCars, obstacles, bonuses) and newObjects
			var overlap = false;
			var objBounds = obj.getBounds();
			// Check with existing enemy cars
			for (var j = 0; j < enemyCars.length; j++) {
				if (enemyCars[j].lane === laneIdx) {
					var other = enemyCars[j];
					var otherBounds = other.getBounds();
					if (!(objBounds.x + objBounds.width < otherBounds.x || objBounds.x > otherBounds.x + otherBounds.width || objBounds.y + objBounds.height < otherBounds.y || objBounds.y > otherBounds.y + otherBounds.height)) {
						overlap = true;
						break;
					}
				}
			}
			// Check with existing obstacles
			if (!overlap) {
				for (var j = 0; j < obstacles.length; j++) {
					if (obstacles[j].lane === laneIdx) {
						var other = obstacles[j];
						var otherBounds = other.getBounds();
						if (!(objBounds.x + objBounds.width < otherBounds.x || objBounds.x > otherBounds.x + otherBounds.width || objBounds.y + objBounds.height < otherBounds.y || objBounds.y > otherBounds.y + otherBounds.height)) {
							overlap = true;
							break;
						}
					}
				}
			}
			// Check with existing bonuses (enemy cars must never overlap a bonus at spawn)
			if (!overlap && !isObstacle) {
				for (var j = 0; j < bonuses.length; j++) {
					if (bonuses[j].lane === laneIdx) {
						var other = bonuses[j];
						var otherBounds = other.getBounds();
						if (!(objBounds.x + objBounds.width < otherBounds.x || objBounds.x > otherBounds.x + otherBounds.width || objBounds.y + objBounds.height < otherBounds.y || objBounds.y > otherBounds.y + otherBounds.height)) {
							overlap = true;
							break;
						}
					}
				}
			}
			// Check with new objects in this spawn
			if (!overlap) {
				for (var j = 0; j < newObjects.length; j++) {
					if (newObjects[j].lane === laneIdx) {
						var other = newObjects[j];
						var otherBounds = other.getBounds();
						if (!(objBounds.x + objBounds.width < otherBounds.x || objBounds.x > otherBounds.x + otherBounds.width || objBounds.y + objBounds.height < otherBounds.y || objBounds.y > otherBounds.y + otherBounds.height)) {
							overlap = true;
							break;
						}
					}
				}
			}
			if (overlap) {
				// Don't spawn this object
				if (obj && obj.destroy) obj.destroy();
				continue;
			}
			// No overlap, spawn
			if (isObstacle) {
				obstacles.push(obj);
				game.addChild(obj);
				// Animate obstacle spawn (scale in)
				obj.scaleX = obj.scaleY = 0.2;
				tween(obj, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 300,
					easing: tween.easeOutBack
				});
				obstacleCountThisSpawn++;
				obstacleLanesThisSpawn.push(laneIdx);
				usedLanes[laneIdx] = true;
			} else {
				enemyCars.push(obj);
				game.addChild(obj);
				usedLanes[laneIdx] = true;
				// Animate enemy car spawn (scale in)
				obj.scaleX = obj.scaleY = 0.2;
				tween(obj, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 300,
					easing: tween.easeOutBack
				});
			}
			newObjects.push(obj);
		}
		// Store obstacle lanes for this tick for bonus spawn logic
		game._obstacleLanesThisSpawn = obstacleLanesThisSpawn;
	} else {
		// If not spawning this tick, clear obstacle lanes
		game._obstacleLanesThisSpawn = [];
	}
	// Spawn bonus, ensuring no overlap with any object
	// Increased spawn frequency: every 90 ticks (was 180), and higher probability (was 0.5, now 0.85)
	if (ticksSinceStart - lastBonusTick > 90 && Math.random() < 0.85) {
		lastBonusTick = ticksSinceStart;
		// Prevent bonus from spawning in a lane with an obstacle this tick
		var availableBonusLanes = [];
		// Only consider the two center lanes as "most accessible" for the player
		var preferredLanes = [1, 2];
		for (var i = 0; i < laneCount; i++) {
			var blocked = false;
			if (game._obstacleLanesThisSpawn) {
				for (var j = 0; j < game._obstacleLanesThisSpawn.length; j++) {
					if (game._obstacleLanesThisSpawn[j] === i) {
						blocked = true;
						break;
					}
				}
			}
			// Check for overlap with any object in this lane at spawn Y
			if (!blocked) {
				var testBonus = new Bonus();
				testBonus.x = laneCenters[i];
				testBonus.y = -100;
				testBonus.lane = i;
				var testBounds = testBonus.getBounds();
				// Check with enemy cars
				for (var j = 0; j < enemyCars.length; j++) {
					if (enemyCars[j].lane === i) {
						var other = enemyCars[j];
						var otherBounds = other.getBounds();
						if (!(testBounds.x + testBounds.width < otherBounds.x || testBounds.x > otherBounds.x + otherBounds.width || testBounds.y + testBounds.height < otherBounds.y || testBounds.y > otherBounds.y + otherBounds.height)) {
							blocked = true;
							break;
						}
					}
				}
				// Check with obstacles
				if (!blocked) {
					for (var j = 0; j < obstacles.length; j++) {
						if (obstacles[j].lane === i) {
							var other = obstacles[j];
							var otherBounds = other.getBounds();
							if (!(testBounds.x + testBounds.width < otherBounds.x || testBounds.x > otherBounds.x + otherBounds.width || testBounds.y + testBounds.height < otherBounds.y || testBounds.y > otherBounds.y + otherBounds.height)) {
								blocked = true;
								break;
							}
						}
					}
				}
				// Check with bonuses
				if (!blocked) {
					for (var j = 0; j < bonuses.length; j++) {
						if (bonuses[j].lane === i) {
							var other = bonuses[j];
							var otherBounds = other.getBounds();
							if (!(testBounds.x + testBounds.width < otherBounds.x || testBounds.x > otherBounds.x + otherBounds.width || testBounds.y + testBounds.height < otherBounds.y || testBounds.y > otherBounds.y + otherBounds.height)) {
								blocked = true;
								break;
							}
						}
					}
				}
				if (!blocked) availableBonusLanes.push(i);
				if (testBonus && testBonus.destroy) testBonus.destroy();
			}
		}
		// Prefer to spawn in center lanes if available, else fallback to any available
		var spawnLanes = [];
		for (var i = 0; i < availableBonusLanes.length; i++) {
			if (preferredLanes.indexOf(availableBonusLanes[i]) !== -1) {
				spawnLanes.push(availableBonusLanes[i]);
			}
		}
		if (spawnLanes.length === 0) spawnLanes = availableBonusLanes;
		if (spawnLanes.length > 0) {
			var laneIdx = spawnLanes[Math.floor(Math.random() * spawnLanes.length)];
			var b = new Bonus();
			b.x = laneCenters[laneIdx];
			b.y = -100;
			b.speed = gameSpeed;
			b.lane = laneIdx;
			bonuses.push(b);
			game.addChild(b);
			// Highlight the bonus visually when it spawns
			b.scaleX = b.scaleY = 1.5;
			tween(b, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 400,
				easing: tween.easeOutBack
			});
			LK.effects.flashObject(b, 0xFFFA00, 400);
		}
	}
	// --- HEART BONUS: spawn a heart with very low probability ---
	if (ticksSinceStart > 120 &&
	// don't spawn at very start
	Math.random() < 0.012 &&
	// very rare chance per tick (~1.2%)
	ticksSinceStart - lastBonusTick > 120 // don't spawn at same time as normal bonus
	) {
		// Find available lanes (no obstacles/enemy/bonus at spawn)
		var availableHeartLanes = [];
		for (var i = 0; i < laneCount; i++) {
			var blocked = false;
			// Check for obstacles
			for (var j = 0; j < obstacles.length; j++) {
				if (obstacles[j].lane === i && obstacles[j].y < 200) {
					blocked = true;
					break;
				}
			}
			// Check for enemy cars
			if (!blocked) {
				for (var j = 0; j < enemyCars.length; j++) {
					if (enemyCars[j].lane === i && enemyCars[j].y < 200) {
						blocked = true;
						break;
					}
				}
			}
			// Check for bonuses
			if (!blocked) {
				for (var j = 0; j < bonuses.length; j++) {
					if (bonuses[j].lane === i && bonuses[j].y < 200) {
						blocked = true;
						break;
					}
				}
			}
			if (!blocked) availableHeartLanes.push(i);
		}
		if (availableHeartLanes.length > 0) {
			var laneIdx = availableHeartLanes[Math.floor(Math.random() * availableHeartLanes.length)];
			// Create a heart bonus as a special object
			var heartBonus = new Container();
			var heartText = new Text2('❤️', {
				size: 90,
				fill: 0xFF2222,
				font: "Arial"
			});
			heartText.anchor.set(0.5, 0.5);
			heartBonus.addChild(heartText);
			heartBonus.x = laneCenters[laneIdx];
			heartBonus.y = -100;
			heartBonus.lane = laneIdx;
			heartBonus.speed = gameSpeed;
			// For collision, mimic Bonus getBounds
			heartBonus.getBounds = function () {
				return {
					x: heartBonus.x - 45,
					y: heartBonus.y - 45,
					width: 90,
					height: 90
				};
			};
			// Animate spawn
			heartBonus.scaleX = heartBonus.scaleY = 1.7;
			tween(heartBonus, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 400,
				easing: tween.easeOutBack
			});
			LK.effects.flashObject(heartBonus, 0xff2222, 400);
			// Mark as heart
			heartBonus._isHeart = true;
			bonuses.push(heartBonus);
			game.addChild(heartBonus);
		}
	}
	// Move enemy cars
	var _loop = function _loop() {
			e = enemyCars[i];
			e.update();
			if (e.y > 2732 + 200) {
				e.destroy();
				enemyCars.splice(i, 1);
				return 0; // continue
			}
			// Collision with player
			if (intersects(player, e)) {
				// Player is invulnerable during reverse or slowmo powers
				if (game._reverseTicks && game._reverseTicks > 0 || game._slowmoTicks && game._slowmoTicks > 0) {
					// Just destroy enemy, no crash
					LK.effects.flashObject(player, 0xFFD700, 400);
					enemyCars.splice(i, 1);
					e.destroy();
					return 0; // continue
				}
				if (!lastCrash) {
					var _shake = function shake(times) {
						if (times <= 0) {
							player.x = origX;
							player.y = origY;
							return;
						}
						var dx = (Math.random() - 0.5) * 30;
						var dy = (Math.random() - 0.5) * 18;
						tween(player, {
							x: origX + dx,
							y: origY + dy
						}, {
							duration: 40,
							easing: tween.linear,
							onFinish: function onFinish() {
								_shake(times - 1);
							}
						});
					};
					if (player._invincible) {
						// Invincible: just destroy enemy, no crash
						LK.effects.flashObject(player, 0xFFD700, 400);
						enemyCars.splice(i, 1);
						e.destroy();
						return 0; // continue
					}
					if (player._shield) {
						player._shield = 0;
						LK.effects.flashObject(player, 0x42a5f5, 600);
						enemyCars.splice(i, 1);
						e.destroy();
						return 0; // continue
					}
					LK.getSound('crash').play();
					LK.effects.flashScreen(0xff0000, 800);
					// Shake player car on crash
					origX = player.x;
					origY = player.y;
					_shake(8);
					lastCrash = true;
					playerHealth--;
					if (playerHealth > 0) {
						// Update health UI and give brief invincibility
						updateHealthBar();
						player._invincible = 1;
						player._invincibleTicks = 90; // 1.5 seconds
						// Remove the enemy car
						enemyCars.splice(i, 1);
						e.destroy();
						// Allow game to continue
						lastCrash = false;
						return 0;
					} else {
						updateHealthBar();
						LK.getSound('gameover').play();
						LK.showGameOver();
						return {
							v: void 0
						};
					}
				}
			}
		},
		e,
		origX,
		origY,
		_ret;
	for (var i = enemyCars.length - 1; i >= 0; i--) {
		_ret = _loop();
		if (_ret === 0) continue;
		if (_ret) return _ret.v;
	}
	// Move obstacles
	var _loop2 = function _loop2() {
			o = obstacles[i];
			o.update();
			if (o.y > 2732 + 100) {
				o.destroy();
				obstacles.splice(i, 1);
				return 0; // continue
			}
			// Collision with player
			if (intersects(player, o)) {
				// Player is invulnerable during reverse or slowmo powers
				if (game._reverseTicks && game._reverseTicks > 0 || game._slowmoTicks && game._slowmoTicks > 0) {
					// Just destroy obstacle, no crash
					LK.effects.flashObject(player, 0xFFD700, 400);
					obstacles.splice(i, 1);
					o.destroy();
					return 0; // continue
				}
				if (!lastCrash) {
					var _shake2 = function shake(times) {
						if (times <= 0) {
							player.x = origX;
							player.y = origY;
							return;
						}
						var dx = (Math.random() - 0.5) * 30;
						var dy = (Math.random() - 0.5) * 18;
						tween(player, {
							x: origX + dx,
							y: origY + dy
						}, {
							duration: 40,
							easing: tween.linear,
							onFinish: function onFinish() {
								_shake2(times - 1);
							}
						});
					};
					if (player._invincible) {
						// Invincible: just destroy obstacle, no crash
						LK.effects.flashObject(player, 0xFFD700, 400);
						obstacles.splice(i, 1);
						o.destroy();
						return 0; // continue
					}
					if (player._shield) {
						player._shield = 0;
						LK.effects.flashObject(player, 0x42a5f5, 600);
						obstacles.splice(i, 1);
						o.destroy();
						return 0; // continue
					}
					LK.getSound('crash').play();
					LK.effects.flashScreen(0xff0000, 800);
					// Shake player car on crash
					origX = player.x;
					origY = player.y;
					_shake2(8);
					lastCrash = true;
					playerHealth--;
					if (playerHealth > 0) {
						// Update health UI and give brief invincibility
						updateHealthBar();
						player._invincible = 1;
						player._invincibleTicks = 90; // 1.5 seconds
						// Remove the obstacle
						obstacles.splice(i, 1);
						o.destroy();
						// Allow game to continue
						lastCrash = false;
						return 0;
					} else {
						updateHealthBar();
						LK.getSound('gameover').play();
						LK.showGameOver();
						return {
							v: void 0
						};
					}
				}
			}
		},
		o,
		origX,
		origY,
		_ret2;
	for (var i = obstacles.length - 1; i >= 0; i--) {
		_ret2 = _loop2();
		if (_ret2 === 0) continue;
		if (_ret2) return _ret2.v;
	}
	// Move bonuses
	for (var i = bonuses.length - 1; i >= 0; i--) {
		var b = bonuses[i];
		b.update();
		// Add a pulsing effect to make the bonus more visible
		if (!b._pulseTween && !b._isHeart) {
			b._pulseTween = true;
			(function (bonusObj) {
				function pulseUp() {
					tween(bonusObj, {
						scaleX: 1.18,
						scaleY: 1.18
					}, {
						duration: 350,
						easing: tween.easeInOutSine,
						onFinish: pulseDown
					});
				}
				function pulseDown() {
					tween(bonusObj, {
						scaleX: 1,
						scaleY: 1
					}, {
						duration: 350,
						easing: tween.easeInOutSine,
						onFinish: pulseUp
					});
				}
				pulseUp();
			})(b);
		}
		if (b.y > 2732 + 100) {
			b.destroy();
			bonuses.splice(i, 1);
			continue;
		}
		// Collision with player
		if (intersects(player, b)) {
			// --- Handle heart bonus ---
			if (b._isHeart) {
				// Only allow up to 5 health
				if (playerHealth < 5) {
					playerHealth++;
					updateHealthBar();
					// Show effect
					LK.effects.flashObject(player, 0xff2222, 600);
					bonusTxt.setText("❤️ +1 CAN!");
					bonusTxt.alpha = 1;
					bonusTxt.scaleX = bonusTxt.scaleY = 1.4;
					tween(bonusTxt, {
						scaleX: 1,
						scaleY: 1,
						alpha: 0
					}, {
						duration: 900,
						easing: tween.easeOutBack,
						onFinish: function onFinish() {
							bonusTxt.setText('');
						}
					});
				}
				b.destroy();
				bonuses.splice(i, 1);
				continue;
			}
			// Increase bonus usage count and update text
			bonusUsageCount++;
			bonusUsageTxt.setText("BONUS: " + bonusUsageCount);
			if (b.type === 'shield') {
				player._shield = 1;
				LK.getSound('shield').play();
				LK.effects.flashObject(player, 0x42a5f5, 600);
				bonusTxt.setText("🛡️ SHIELD! (Shield Bonus)");
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					t.scaleX = t.scaleY = 1.4;
					tween(t, {
						scaleX: 1,
						scaleY: 1,
						alpha: 0
					}, {
						duration: 900,
						easing: tween.easeOutBack,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else if (b.type === 'double') {
				player._doubleScore = 1;
				player._doubleScoreTicks = 600; // 10 seconds at 60fps
				LK.getSound('double').play();
				LK.effects.flashObject(player, 0xffd600, 600);
				bonusTxt.setText("✨ x2 SCORE! (Double Score Bonus)");
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					t.scaleX = t.scaleY = 1.4;
					tween(t, {
						scaleX: 1,
						scaleY: 1,
						alpha: 0
					}, {
						duration: 900,
						easing: tween.easeOutBack,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else if (b.type === 'slowmo') {
				// Slow motion: halve gameSpeed for 6 seconds
				if (!game._slowmoTicks || game._slowmoTicks <= 0) {
					game._origGameSpeed = gameSpeed;
					gameSpeed = Math.max(8, Math.floor(gameSpeed / 2));
					game._slowmoTicks = 360;
					LK.getSound('slowmo').play();
					bonusTxt.setText("🐢 SLOW-MO! (Everything slows down)");
					LK.effects.flashObject(player, 0x80cbc4, 600);
					(function () {
						var t = bonusTxt;
						t.alpha = 1;
						t.scaleX = t.scaleY = 1.4;
						tween(t, {
							scaleX: 1,
							scaleY: 1,
							alpha: 0
						}, {
							duration: 1200,
							easing: tween.easeOutBack,
							onFinish: function onFinish() {
								t.setText('');
							}
						});
					})();
				}
			} else if (b.type === 'shrink') {
				// Shrink player for 8 seconds
				if (!player._shrinkTicks || player._shrinkTicks <= 0) {
					player._shrinkTicks = 480;
					player.scaleX = player.scaleY = 0.35;
					player.width = player._carAsset.width * 0.35;
					player.height = player._carAsset.height * 0.35;
					LK.getSound('shrink').play();
					bonusTxt.setText("🚗💨 SHRINK! (Tiny car!)");
					LK.effects.flashObject(player, 0xf48fb1, 600);
					(function () {
						var t = bonusTxt;
						t.alpha = 1;
						tween(t, {
							alpha: 0
						}, {
							duration: 1200,
							easing: tween.linear,
							onFinish: function onFinish() {
								t.setText('');
							}
						});
					})();
				}
			} else if (b.type === 'invincible') {
				// Invincible for 7 seconds
				player._invincible = 1;
				player._invincibleTicks = 420;
				LK.getSound('invincible').play();
				bonusTxt.setText("💥 INVINCIBLE! (Can't crash!)");
				LK.effects.flashObject(player, 0xFFD700, 600);
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					tween(t, {
						alpha: 0
					}, {
						duration: 1200,
						easing: tween.linear,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else if (b.type === 'teleport') {
				// Teleport player to random lane
				var oldLane = -1;
				for (var li = 0; li < laneCenters.length; li++) {
					if (Math.abs(player.x - laneCenters[li]) < laneWidth / 2) oldLane = li;
				}
				var newLane = oldLane;
				while (newLane === oldLane) {
					newLane = Math.floor(Math.random() * laneCenters.length);
				}
				player.x = laneCenters[newLane];
				LK.getSound('teleport').play();
				bonusTxt.setText("🌀 TELEPORT! (Random lane)");
				LK.effects.flashObject(player, 0x4fc3f7, 600);
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					tween(t, {
						alpha: 0
					}, {
						duration: 1200,
						easing: tween.linear,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else if (b.type === 'clear') {
				// Clear all obstacles and enemy cars
				for (var ci = enemyCars.length - 1; ci >= 0; ci--) {
					enemyCars[ci].destroy();
					enemyCars.splice(ci, 1);
				}
				for (var oi = obstacles.length - 1; oi >= 0; oi--) {
					obstacles[oi].destroy();
					obstacles.splice(oi, 1);
				}
				LK.getSound('clear').play();
				bonusTxt.setText("🧹 CLEAR! (All obstacles gone)");
				LK.effects.flashObject(player, 0x81d4fa, 600);
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					tween(t, {
						alpha: 0
					}, {
						duration: 1200,
						easing: tween.linear,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else if (b.type === 'magnet') {
				// Magnet: attract bonuses for 8 seconds
				player._magnetTicks = 480;
				LK.getSound('magnet').play();
				bonusTxt.setText("🧲 MAGNET! (Bonuses come to you)");
				LK.effects.flashObject(player, 0xff8a65, 600);
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					tween(t, {
						alpha: 0
					}, {
						duration: 1200,
						easing: tween.linear,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else if (b.type === 'reverse') {
				// Reverse: enemies move up for 5 seconds
				game._reverseTicks = 300;
				LK.getSound('reverse').play();
				bonusTxt.setText("🔄 REVERSE! (Enemies go up!)");
				LK.effects.flashObject(player, 0xba68c8, 600);
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					tween(t, {
						alpha: 0
					}, {
						duration: 1200,
						easing: tween.linear,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else if (b.type.indexOf('score') === 0) {
				// All score bonuses
				var addScore = 100;
				// Optionally, make higher-numbered bonuses worth more
				var idx = 0;
				if (b.type.length > 5) {
					idx = parseInt(b.type.substring(5), 10) - 1;
					if (isNaN(idx) || idx < 0) idx = 0;
				}
				addScore += idx * 10; // e.g. score17 gives 100+16*10=260
				if (player._doubleScore) addScore *= 2;
				bonusScore += addScore;
				score += addScore;
				LK.getSound('bonus').play();
				LK.effects.flashObject(player, 0x43a047, 400);
				bonusTxt.setText("💰 +" + addScore + "! (Bonus " + b.type.replace('score', '') + ")");
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					t.scaleX = t.scaleY = 1.4;
					tween(t, {
						scaleX: 1,
						scaleY: 1,
						alpha: 0
					}, {
						duration: 900,
						easing: tween.easeOutBack,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			} else {
				// fallback
				var addScore = 100;
				if (player._doubleScore) addScore *= 2;
				bonusScore += addScore;
				score += addScore;
				LK.getSound('bonus').play();
				LK.effects.flashObject(player, 0x43a047, 400);
				bonusTxt.setText("💰 +" + addScore + "! (Score Bonus)");
				(function () {
					var t = bonusTxt;
					t.alpha = 1;
					t.scaleX = t.scaleY = 1.4;
					tween(t, {
						scaleX: 1,
						scaleY: 1,
						alpha: 0
					}, {
						duration: 900,
						easing: tween.easeOutBack,
						onFinish: function onFinish() {
							t.setText('');
						}
					});
				})();
			}
			b.destroy();
			bonuses.splice(i, 1);
		}
	}
	// Score increases with distance
	if (!lastCrash) {
		var addScore = Math.floor(gameSpeed / 2);
		if (player._doubleScore) addScore *= 2;
		score += addScore;
		scoreTxt.setText(score + "");
		// Update high score if needed
		if (score > highScore) {
			highScore = score;
			storage.highScore = highScore;
			if (typeof highScoreTxt !== "undefined") {
				highScoreTxt.setText('HIGH SCORE: ' + highScore);
			}
		}
		// Animate score text on score increase
		scoreTxt.scaleX = scoreTxt.scaleY = 1.25;
		tween(scoreTxt, {
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 220,
			easing: tween.easeOutBack
		});
		// Handle double score timer
		if (player._doubleScore) {
			player._doubleScoreTicks--;
			if (player._doubleScoreTicks <= 0) {
				player._doubleScore = 0;
				player._doubleScoreTicks = 0;
			}
		}
		// Handle slowmo timer
		if (game._slowmoTicks && game._slowmoTicks > 0) {
			game._slowmoTicks--;
			if (game._slowmoTicks === 0 && typeof game._origGameSpeed !== "undefined") {
				gameSpeed = game._origGameSpeed;
				game._origGameSpeed = undefined;
			}
		}
		// Handle shrink timer
		if (player._shrinkTicks && player._shrinkTicks > 0) {
			player._shrinkTicks--;
			if (player._shrinkTicks === 0) {
				player.scaleX = player.scaleY = 0.55;
				// Restore width/height to original (not cumulative shrink)
				player.width = player._carAsset.width * 0.55;
				player.height = player._carAsset.height * 0.55;
			}
		}
		// Handle invincible timer
		if (player._invincible && player._invincibleTicks > 0) {
			player._invincibleTicks--;
			if (player._invincibleTicks === 0) {
				player._invincible = 0;
			}
		}
		// Handle magnet timer
		if (player._magnetTicks && player._magnetTicks > 0) {
			player._magnetTicks--;
			// Attract bonuses
			for (var mi = 0; mi < bonuses.length; mi++) {
				var bonusObj = bonuses[mi];
				var dx = player.x - bonusObj.x;
				var dy = player.y - bonusObj.y;
				var dist = Math.sqrt(dx * dx + dy * dy);
				if (dist < 600) {
					// Move bonus towards player
					bonusObj.x += dx * 0.08;
					bonusObj.y += dy * 0.08;
				}
			}
			if (player._magnetTicks === 0) {
				// End magnet
			}
		}
		// Handle reverse timer
		if (game._reverseTicks && game._reverseTicks > 0) {
			game._reverseTicks--;
			// Reverse enemy and obstacle movement
			if (!game._reverseExplodeQueue) game._reverseExplodeQueue = {
				enemies: [],
				obstacles: []
			};
			for (var ri = enemyCars.length - 1; ri >= 0; ri--) {
				var e = enemyCars[ri];
				e.y -= gameSpeed * 2;
				// If enemy car goes off the top, queue for explosion after reverse ends
				if (e.y + e.height / 2 < -100) {
					game._reverseExplodeQueue.enemies.push(e);
					enemyCars.splice(ri, 1);
				}
			}
			for (var ro = obstacles.length - 1; ro >= 0; ro--) {
				var o = obstacles[ro];
				o.y -= gameSpeed * 2;
				// If obstacle goes off the top, queue for explosion after reverse ends
				if (o.y + o.height / 2 < -100) {
					game._reverseExplodeQueue.obstacles.push(o);
					obstacles.splice(ro, 1);
				}
			}
			if (game._reverseTicks === 0) {
				// End reverse: now explode all queued enemies and obstacles
				if (game._reverseExplodeQueue) {
					// Explode enemy cars
					for (var i = 0; i < game._reverseExplodeQueue.enemies.length; i++) {
						var e = game._reverseExplodeQueue.enemies[i];
						LK.getSound('crash').play();
						// Explosion effect: scale up, fade out, flash red
						LK.effects.flashObject(e, 0xff0000, 200);
						tween(e, {
							scaleX: 1.7,
							scaleY: 1.7,
							alpha: 0
						}, {
							duration: 350,
							easing: tween.easeOutCubic,
							onFinish: function (obj) {
								return function () {
									obj.destroy();
								};
							}(e)
						});
					}
					// Explode obstacles
					for (var i = 0; i < game._reverseExplodeQueue.obstacles.length; i++) {
						var o = game._reverseExplodeQueue.obstacles[i];
						LK.getSound('crash').play();
						LK.effects.flashObject(o, 0xff0000, 200);
						tween(o, {
							scaleX: 1.7,
							scaleY: 1.7,
							alpha: 0
						}, {
							duration: 350,
							easing: tween.easeOutCubic,
							onFinish: function (obj) {
								return function () {
									obj.destroy();
								};
							}(o)
						});
					}
					game._reverseExplodeQueue = null;
				}
			}
		}
		// --- Update bonus icon position and state ---
		bonusIcon.x = player.x;
		bonusIcon.y = player.y - player.height / 2 - 30;
		// Determine which bonus is active and show icon
		var showIcon = '';
		if (player._invincible && player._invincibleTicks > 0) {
			showIcon = '🦾';
			bonusIcon.setText('🦾');
			bonusIcon.alpha = 1;
		} else if (player._shield) {
			showIcon = '🛡️';
			bonusIcon.setText('🛡️');
			bonusIcon.alpha = 1;
		} else if (player._doubleScore && player._doubleScoreTicks > 0) {
			showIcon = '✨';
			bonusIcon.setText('✨');
			bonusIcon.alpha = 1;
		} else if (player._shrinkTicks && player._shrinkTicks > 0) {
			showIcon = '🔽';
			bonusIcon.setText('🔽');
			bonusIcon.alpha = 1;
		} else if (player._magnetTicks && player._magnetTicks > 0) {
			showIcon = '🧲';
			bonusIcon.setText('🧲');
			bonusIcon.alpha = 1;
		} else if (game._slowmoTicks && game._slowmoTicks > 0) {
			showIcon = '🐢';
			bonusIcon.setText('🐢');
			bonusIcon.alpha = 1;
		} else if (game._reverseTicks && game._reverseTicks > 0) {
			showIcon = '🔄';
			bonusIcon.setText('🔄');
			bonusIcon.alpha = 1;
		} else {
			bonusIcon.setText('');
			bonusIcon.alpha = 0;
		}
		// Play win sound if score threshold reached (example: 10000)
		if (score >= 10000 && !game._winSoundPlayed) {
			LK.getSound('win').play();
			game._winSoundPlayed = true;
		}
	}
};
// Reset crash state on new game
LK.on('gameStart', function () {
	lastCrash = false;
	playerHealth = 3;
	updateHealthBar();
	score = 0;
	bonusScore = 0;
	bonusUsageCount = 0;
	scoreTxt.setText('0');
	bonusTxt.setText('');
	if (typeof highScoreTxt !== "undefined") {
		highScore = storage.highScore || 0;
		highScoreTxt.setText('HIGH SCORE: ' + highScore);
	}
	if (typeof bonusUsageTxt !== "undefined") {
		bonusUsageTxt.setText("BONUS: 0");
	}
	// Remove all cars, obstacles, bonuses
	for (var i = enemyCars.length - 1; i >= 0; i--) {
		enemyCars[i].destroy();
		enemyCars.splice(i, 1);
	}
	for (var i = obstacles.length - 1; i >= 0; i--) {
		obstacles[i].destroy();
		obstacles.splice(i, 1);
	}
	for (var i = bonuses.length - 1; i >= 0; i--) {
		bonuses[i].destroy();
		bonuses.splice(i, 1);
	}
	playerTargetLane = 1;
	player.x = laneCenters[1];
	player.y = 2732 - 500;
	if (playerMoveTween && playerMoveTween.cancel) playerMoveTween.cancel();
	player._shield = 0;
	player._doubleScore = 0;
	player._doubleScoreTicks = 0;
	player._shrinkTicks = 0;
	player._invincible = 0;
	player._invincibleTicks = 0;
	player._magnetTicks = 0;
	player.scaleX = player.scaleY = 0.55;
	player.width = player._carAsset.width * 0.55;
	player.height = player._carAsset.height * 0.55;
	game._slowmoTicks = 0;
	game._reverseTicks = 0;
	gameSpeed = 18;
	ticksSinceStart = 0;
	lastSpawnTick = 0;
	lastBonusTick = 0;
	game._spawnInterval = 36; // Easy stage spawn interval
	// Reset bonus icon
	if (typeof bonusIcon !== "undefined") {
		bonusIcon.setText('');
		bonusIcon.alpha = 0;
	}
});
// Prevent player from moving into top left menu area
// (handled by roadLeft, but double check)
if (roadLeft < 100) {
	roadLeft = 100;
	roadWidth = roadRight - roadLeft;
	laneWidth = roadWidth / laneCount;
	for (var i = 0; i < laneCount; i++) {
		laneCenters[i] = roadLeft + laneWidth / 2 + i * laneWidth;
	}
}
// Play background music and engine idle at game start
LK.on('gameStart', function () {
	LK.playMusic('bgmusic');
	LK.getSound('engine_idle').play();
});

===================================================================
--- original.js
+++ change.js
@@ -1010,8 +1010,86 @@
 			});
 			LK.effects.flashObject(b, 0xFFFA00, 400);
 		}
 	}
+	// --- HEART BONUS: spawn a heart with very low probability ---
+	if (ticksSinceStart > 120 &&
+	// don't spawn at very start
+	Math.random() < 0.012 &&
+	// very rare chance per tick (~1.2%)
+	ticksSinceStart - lastBonusTick > 120 // don't spawn at same time as normal bonus
+	) {
+		// Find available lanes (no obstacles/enemy/bonus at spawn)
+		var availableHeartLanes = [];
+		for (var i = 0; i < laneCount; i++) {
+			var blocked = false;
+			// Check for obstacles
+			for (var j = 0; j < obstacles.length; j++) {
+				if (obstacles[j].lane === i && obstacles[j].y < 200) {
+					blocked = true;
+					break;
+				}
+			}
+			// Check for enemy cars
+			if (!blocked) {
+				for (var j = 0; j < enemyCars.length; j++) {
+					if (enemyCars[j].lane === i && enemyCars[j].y < 200) {
+						blocked = true;
+						break;
+					}
+				}
+			}
+			// Check for bonuses
+			if (!blocked) {
+				for (var j = 0; j < bonuses.length; j++) {
+					if (bonuses[j].lane === i && bonuses[j].y < 200) {
+						blocked = true;
+						break;
+					}
+				}
+			}
+			if (!blocked) availableHeartLanes.push(i);
+		}
+		if (availableHeartLanes.length > 0) {
+			var laneIdx = availableHeartLanes[Math.floor(Math.random() * availableHeartLanes.length)];
+			// Create a heart bonus as a special object
+			var heartBonus = new Container();
+			var heartText = new Text2('❤️', {
+				size: 90,
+				fill: 0xFF2222,
+				font: "Arial"
+			});
+			heartText.anchor.set(0.5, 0.5);
+			heartBonus.addChild(heartText);
+			heartBonus.x = laneCenters[laneIdx];
+			heartBonus.y = -100;
+			heartBonus.lane = laneIdx;
+			heartBonus.speed = gameSpeed;
+			// For collision, mimic Bonus getBounds
+			heartBonus.getBounds = function () {
+				return {
+					x: heartBonus.x - 45,
+					y: heartBonus.y - 45,
+					width: 90,
+					height: 90
+				};
+			};
+			// Animate spawn
+			heartBonus.scaleX = heartBonus.scaleY = 1.7;
+			tween(heartBonus, {
+				scaleX: 1,
+				scaleY: 1
+			}, {
+				duration: 400,
+				easing: tween.easeOutBack
+			});
+			LK.effects.flashObject(heartBonus, 0xff2222, 400);
+			// Mark as heart
+			heartBonus._isHeart = true;
+			bonuses.push(heartBonus);
+			game.addChild(heartBonus);
+		}
+	}
 	// Move enemy cars
 	var _loop = function _loop() {
 			e = enemyCars[i];
 			e.update();
@@ -1199,9 +1277,9 @@
 	for (var i = bonuses.length - 1; i >= 0; i--) {
 		var b = bonuses[i];
 		b.update();
 		// Add a pulsing effect to make the bonus more visible
-		if (!b._pulseTween) {
+		if (!b._pulseTween && !b._isHeart) {
 			b._pulseTween = true;
 			(function (bonusObj) {
 				function pulseUp() {
 					tween(bonusObj, {
@@ -1232,8 +1310,35 @@
 			continue;
 		}
 		// Collision with player
 		if (intersects(player, b)) {
+			// --- Handle heart bonus ---
+			if (b._isHeart) {
+				// Only allow up to 5 health
+				if (playerHealth < 5) {
+					playerHealth++;
+					updateHealthBar();
+					// Show effect
+					LK.effects.flashObject(player, 0xff2222, 600);
+					bonusTxt.setText("❤️ +1 CAN!");
+					bonusTxt.alpha = 1;
+					bonusTxt.scaleX = bonusTxt.scaleY = 1.4;
+					tween(bonusTxt, {
+						scaleX: 1,
+						scaleY: 1,
+						alpha: 0
+					}, {
+						duration: 900,
+						easing: tween.easeOutBack,
+						onFinish: function onFinish() {
+							bonusTxt.setText('');
+						}
+					});
+				}
+				b.destroy();
+				bonuses.splice(i, 1);
+				continue;
+			}
 			// Increase bonus usage count and update text
 			bonusUsageCount++;
 			bonusUsageTxt.setText("BONUS: " + bonusUsageCount);
 			if (b.type === 'shield') {