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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -25;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = gameSpeed;
	self.collected = false;
	self.update = function () {
		self.y += self.speed;
		self.rotation += 0.1;
	};
	return self;
});
var LaneLine = Container.expand(function () {
	var self = Container.call(this);
	var lineGraphics = self.attachAsset('laneLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = gameSpeed;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = gameSpeed;
	// Add police lights to the obstacle (police car)
	var leftLight = self.attachAsset('policeLight', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	leftLight.x = -30;
	leftLight.y = -60;
	var rightLight = self.attachAsset('policeLight', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	rightLight.x = 30;
	rightLight.y = -60;
	rightLight.tint = 0x0000ff; // Make right light blue
	self.lightTimer = 0;
	self.isRedActive = true;
	self.update = function () {
		self.y += self.speed;
		// Animate police lights
		self.lightTimer++;
		if (self.lightTimer >= 15) {
			// Change every 15 frames (0.25 seconds at 60fps)
			self.lightTimer = 0;
			self.isRedActive = !self.isRedActive;
			if (self.isRedActive) {
				leftLight.alpha = 1;
				rightLight.alpha = 0.3;
			} else {
				leftLight.alpha = 0.3;
				rightLight.alpha = 1;
			}
		}
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.groundY = 2300;
	self.lanes = [650, 1024, 1398]; // Three lanes
	self.currentLane = 1; // Middle lane
	self.targetX = self.lanes[self.currentLane];
	self.x = self.targetX;
	self.y = self.groundY;
	self.moveLeft = function () {
		if (self.currentLane > 0) {
			self.currentLane--;
			self.targetX = self.lanes[self.currentLane];
		}
	};
	self.moveRight = function () {
		if (self.currentLane < 2) {
			self.currentLane++;
			self.targetX = self.lanes[self.currentLane];
		}
	};
	self.update = function () {
		// Handle lane switching
		var dx = self.targetX - self.x;
		if (Math.abs(dx) > 2) {
			self.x += dx * 0.15;
		} else {
			self.x = self.targetX;
		}
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = gameSpeed;
	self.collected = false;
	self.lifetime = 1200; // 20 seconds at 60fps
	self.update = function () {
		self.y += self.speed;
		self.rotation += 0.15;
		// Decrease lifetime
		self.lifetime--;
		// Flash when about to disappear (last 3 seconds)
		if (self.lifetime <= 180 && self.lifetime > 0) {
			self.alpha = (Math.sin(self.lifetime * 0.3) + 1) * 0.5;
		}
	};
	return self;
});
var Tree = Container.expand(function () {
	var self = Container.call(this);
	var treeGraphics = self.attachAsset('tree', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = gameSpeed;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
var player;
var obstacles = [];
var coins = [];
var powerups = [];
var bullets = [];
var hasWeapon = false;
var weaponTimer = 0;
var weaponDuration = 1200; // 20 seconds at 60fps
var laneLines = [];
var trees = [];
var gameSpeed = 8;
var maxSpeed = 20;
var speedIncrement = 0.005;
var distance = 0;
var obstacleSpawnTimer = 0;
var coinSpawnTimer = 0;
var powerupSpawnTimer = 0;
var laneLineSpawnTimer = 0;
var treeSpawnTimer = 0;
var lastSwipeX = 0;
var lastSwipeY = 0;
var swipeStarted = false;
var policeMusicPlaying = false;
var policeOnScreen = false;
var lives = 3;
var maxLives = 3;
// Create road background
var roadBackground = game.addChild(LK.getAsset('roadBackground', {
	anchorX: 0.5,
	anchorY: 0.5
}));
roadBackground.x = 1024; // Center of screen
roadBackground.y = 1366;
// Create green forest backgrounds on sides
var leftForest = game.addChild(LK.getAsset('forestBackground', {
	anchorX: 0.5,
	anchorY: 0.5
}));
leftForest.x = 238; // Center of left side area
leftForest.y = 1366;
var rightForest = game.addChild(LK.getAsset('forestBackground', {
	anchorX: 0.5,
	anchorY: 0.5
}));
rightForest.x = 1810; // Center of right side area
rightForest.y = 1366;
// Create road borders
var leftBorder = game.addChild(LK.getAsset('roadBorder', {
	anchorX: 0.5,
	anchorY: 0.5
}));
leftBorder.x = 476; // Left of leftmost lane
leftBorder.y = 1366;
var rightBorder = game.addChild(LK.getAsset('roadBorder', {
	anchorX: 0.5,
	anchorY: 0.5
}));
rightBorder.x = 1572; // Right of rightmost lane
rightBorder.y = 1366;
// Create player
player = game.addChild(new Player());
player.scaleX = 1.3;
player.scaleY = 1.3;
// Create score display
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
// Create distance display
var distanceText = new Text2('Distance: 0m', {
	size: 50,
	fill: 0xFFFFFF
});
distanceText.anchor.set(0, 0);
distanceText.x = 50;
distanceText.y = 120;
LK.gui.topLeft.addChild(distanceText);
// Create lives display as hearts in top right
var healthBars = [];
for (var h = 0; h < maxLives; h++) {
	var heart = LK.getAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	heart.x = -50 - h * 50;
	heart.y = 80;
	LK.gui.topRight.addChild(heart);
	healthBars.push(heart);
}
// Touch controls
game.down = function (x, y, obj) {
	lastSwipeX = x;
	lastSwipeY = y;
	swipeStarted = true;
};
game.up = function (x, y, obj) {
	if (swipeStarted) {
		var deltaX = x - lastSwipeX;
		var deltaY = y - lastSwipeY;
		var swipeThreshold = 100;
		if (Math.abs(deltaX) > Math.abs(deltaY)) {
			// Horizontal swipe
			if (deltaX > swipeThreshold) {
				player.moveRight();
			} else if (deltaX < -swipeThreshold) {
				player.moveLeft();
			}
		}
	}
	swipeStarted = false;
};
function spawnObstacle() {
	var obstacle = new Obstacle();
	var laneIndex = Math.floor(Math.random() * 3);
	obstacle.x = player.lanes[laneIndex];
	obstacle.y = -100;
	obstacle.speed = gameSpeed;
	obstacle.scaleX = 0.9;
	obstacle.scaleY = 0.9;
	tween(obstacle, {
		scaleX: 1.3,
		scaleY: 1.3
	}, {
		duration: 400,
		easing: tween.easeOut
	});
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnCoin() {
	var coin = new Coin();
	var laneIndex = Math.floor(Math.random() * 3);
	coin.x = player.lanes[laneIndex];
	coin.y = -50;
	coin.speed = gameSpeed;
	coin.scaleX = 0.5;
	coin.scaleY = 0.5;
	tween(coin, {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 500,
		easing: tween.easeOut
	});
	coins.push(coin);
	game.addChild(coin);
}
function spawnPowerUp() {
	var powerup = new PowerUp();
	var laneIndex = Math.floor(Math.random() * 3);
	powerup.x = player.lanes[laneIndex];
	powerup.y = -50;
	powerup.speed = gameSpeed;
	powerup.scaleX = 0.3;
	powerup.scaleY = 0.3;
	tween(powerup, {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 600,
		easing: tween.easeOut
	});
	powerups.push(powerup);
	game.addChild(powerup);
}
function spawnLaneLine() {
	// Lane dividers between lanes
	var positions = [837, 1211]; // Between lanes 0-1 and 1-2
	for (var i = 0; i < positions.length; i++) {
		var laneLine = new LaneLine();
		laneLine.x = positions[i];
		laneLine.y = -20;
		laneLine.speed = gameSpeed;
		laneLines.push(laneLine);
		game.addChild(laneLine);
	}
}
function spawnTrees() {
	// Spawn trees on left side of road
	var leftPositions = [100, 200, 300, 400];
	for (var i = 0; i < leftPositions.length; i++) {
		if (Math.random() < 0.3) {
			var leftTree = new Tree();
			leftTree.x = leftPositions[i];
			leftTree.y = -80;
			leftTree.speed = gameSpeed;
			// Add some variation in scale
			leftTree.scaleX = 0.8 + Math.random() * 0.4;
			leftTree.scaleY = 0.8 + Math.random() * 0.4;
			// Add slight tint variation for natural look
			var tintVariation = 0.9 + Math.random() * 0.2;
			leftTree.tint = tintVariation * 0x90EE90 | 0;
			trees.push(leftTree);
			game.addChild(leftTree);
		}
	}
	// Spawn trees on right side of road
	var rightPositions = [1648, 1748, 1848, 1948];
	for (var j = 0; j < rightPositions.length; j++) {
		if (Math.random() < 0.3) {
			var rightTree = new Tree();
			rightTree.x = rightPositions[j];
			rightTree.y = -80;
			rightTree.speed = gameSpeed;
			// Add some variation in scale
			rightTree.scaleX = 0.8 + Math.random() * 0.4;
			rightTree.scaleY = 0.8 + Math.random() * 0.4;
			// Add slight tint variation for natural look
			var tintVariation = 0.9 + Math.random() * 0.2;
			rightTree.tint = tintVariation * 0x90EE90 | 0;
			trees.push(rightTree);
			game.addChild(rightTree);
		}
	}
}
// Main game loop
game.update = function () {
	// Increase game speed gradually
	if (gameSpeed < maxSpeed) {
		gameSpeed += speedIncrement;
	}
	// Update distance
	distance += gameSpeed * 0.1;
	distanceText.setText('Distance: ' + Math.floor(distance) + 'm');
	// Spawn obstacles
	obstacleSpawnTimer++;
	if (obstacleSpawnTimer > 60 + Math.random() * 60) {
		spawnObstacle();
		obstacleSpawnTimer = 0;
	}
	// Spawn coins
	coinSpawnTimer++;
	if (coinSpawnTimer > 90 + Math.random() * 90) {
		spawnCoin();
		coinSpawnTimer = 0;
	}
	// Spawn powerups (rare spawn - every 2 minutes)
	powerupSpawnTimer++;
	if (powerupSpawnTimer > 7200) {
		// 2 minutes (120 seconds * 60 fps)
		spawnPowerUp();
		powerupSpawnTimer = 0;
	}
	// Spawn lane lines
	laneLineSpawnTimer++;
	if (laneLineSpawnTimer > 30) {
		spawnLaneLine();
		laneLineSpawnTimer = 0;
	}
	// Spawn trees
	treeSpawnTimer++;
	if (treeSpawnTimer > 45) {
		spawnTrees();
		treeSpawnTimer = 0;
	}
	// Update obstacles
	var currentPoliceOnScreen = false;
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.speed = gameSpeed;
		// Check if police car is on screen
		if (obstacle.y >= -200 && obstacle.y <= 2900) {
			currentPoliceOnScreen = true;
		}
		// Remove obstacles that are off screen
		if (obstacle.y > 2800) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (player.intersects(obstacle)) {
			// Play crash sound
			try {
				LK.getSound('crash').play();
			} catch (e) {
				console.log('Crash sound error:', e);
			}
			// Reduce lives
			lives--;
			// Hide the health bar corresponding to lost life
			if (lives >= 0 && lives < healthBars.length) {
				healthBars[healthBars.length - 1 - lives].visible = false;
			}
			// Flash screen and remove obstacle
			LK.effects.flashScreen(0xff0000, 500);
			obstacle.destroy();
			obstacles.splice(i, 1);
			// Check if game over
			if (lives <= 0) {
				// Add delay to allow crash sound to play before game over
				LK.setTimeout(function () {
					LK.showGameOver();
				}, 800); // Wait 800ms for crash sound to play
				return;
			}
			// Make player temporarily invulnerable
			player.alpha = 0.5;
			LK.setTimeout(function () {
				player.alpha = 1.0;
			}, 1500); // 1.5 seconds of invulnerability
			continue;
		}
	}
	// Handle police music based on police presence
	if (currentPoliceOnScreen && !policeMusicPlaying) {
		LK.playMusic('policemusic');
		policeMusicPlaying = true;
		policeOnScreen = true;
	} else if (!currentPoliceOnScreen && policeMusicPlaying) {
		LK.playMusic('bgmusic');
		policeMusicPlaying = false;
		policeOnScreen = false;
	}
	// Update coins
	for (var j = coins.length - 1; j >= 0; j--) {
		var coin = coins[j];
		coin.speed = gameSpeed;
		// Remove coins that are off screen
		if (coin.y > 2800) {
			coin.destroy();
			coins.splice(j, 1);
			continue;
		}
		// Check collection
		if (!coin.collected && player.intersects(coin)) {
			coin.collected = true;
			LK.setScore(LK.getScore() + 10);
			scoreText.setText('Score: ' + LK.getScore());
			LK.getSound('collect').play();
			// Visual effect
			tween(coin, {
				alpha: 0,
				scaleX: 2,
				scaleY: 2
			}, {
				duration: 300,
				onFinish: function onFinish() {
					coin.destroy();
				}
			});
			coins.splice(j, 1);
		}
	}
	// Update powerups
	for (var p = powerups.length - 1; p >= 0; p--) {
		var powerup = powerups[p];
		powerup.speed = gameSpeed;
		// Remove powerups that are off screen or expired
		if (powerup.y > 2800 || powerup.lifetime <= 0) {
			powerup.destroy();
			powerups.splice(p, 1);
			continue;
		}
		// Check collection
		if (!powerup.collected && player.intersects(powerup)) {
			powerup.collected = true;
			hasWeapon = true;
			weaponTimer = weaponDuration; // 20 seconds
			LK.setScore(LK.getScore() + 25);
			scoreText.setText('Score: ' + LK.getScore());
			LK.getSound('collect').play();
			// Visual effect
			tween(powerup, {
				alpha: 0,
				scaleX: 3,
				scaleY: 3
			}, {
				duration: 400,
				onFinish: function onFinish() {
					powerup.destroy();
				}
			});
			powerups.splice(p, 1);
		}
	}
	// Update lane lines
	for (var k = laneLines.length - 1; k >= 0; k--) {
		var laneLine = laneLines[k];
		laneLine.speed = gameSpeed;
		// Remove lane lines that are off screen
		if (laneLine.y > 2800) {
			laneLine.destroy();
			laneLines.splice(k, 1);
		}
	}
	// Update trees
	for (var t = trees.length - 1; t >= 0; t--) {
		var tree = trees[t];
		tree.speed = gameSpeed;
		// Remove trees that are off screen
		if (tree.y > 2800) {
			tree.destroy();
			trees.splice(t, 1);
		}
	}
	// Handle weapon system
	if (hasWeapon) {
		weaponTimer--;
		if (weaponTimer <= 0) {
			hasWeapon = false;
		}
		// Shoot bullets every 10 frames (6 times per second)
		if (LK.ticks % 10 === 0) {
			var bullet = new Bullet();
			bullet.x = player.x;
			bullet.y = player.y - 100;
			bullets.push(bullet);
			game.addChild(bullet);
		}
	}
	// Update bullets
	for (var b = bullets.length - 1; b >= 0; b--) {
		var bullet = bullets[b];
		// Remove bullets that are off screen
		if (bullet.y < -50) {
			bullet.destroy();
			bullets.splice(b, 1);
			continue;
		}
		// Check bullet collision with obstacles
		for (var o = obstacles.length - 1; o >= 0; o--) {
			var obstacle = obstacles[o];
			if (bullet.intersects(obstacle)) {
				// Destroy both bullet and obstacle
				bullet.destroy();
				bullets.splice(b, 1);
				obstacle.destroy();
				obstacles.splice(o, 1);
				// Add score bonus for destroying police car
				LK.setScore(LK.getScore() + 50);
				scoreText.setText('Score: ' + LK.getScore());
				// Visual effect
				LK.effects.flashObject(obstacle, 0xFFFFFF, 200);
				break;
			}
		}
	}
	// Add distance bonus to score
	if (LK.ticks % 60 === 0) {
		LK.setScore(LK.getScore() + 1);
		scoreText.setText('Score: ' + LK.getScore());
	}
	// Road color no longer changes automatically
};
// Road color change function (kept for potential future use)
function changeRoadColor(newColor) {
	roadBackground.tint = newColor;
}
// Start background music
LK.playMusic('bgmusic');
;

===================================================================
--- original.js
+++ change.js
@@ -128,11 +128,18 @@
 		anchorY: 0.5
 	});
 	self.speed = gameSpeed;
 	self.collected = false;
+	self.lifetime = 1200; // 20 seconds at 60fps
 	self.update = function () {
 		self.y += self.speed;
 		self.rotation += 0.15;
+		// Decrease lifetime
+		self.lifetime--;
+		// Flash when about to disappear (last 3 seconds)
+		if (self.lifetime <= 180 && self.lifetime > 0) {
+			self.alpha = (Math.sin(self.lifetime * 0.3) + 1) * 0.5;
+		}
 	};
 	return self;
 });
 var Tree = Container.expand(function () {
@@ -395,12 +402,12 @@
 	if (coinSpawnTimer > 90 + Math.random() * 90) {
 		spawnCoin();
 		coinSpawnTimer = 0;
 	}
-	// Spawn powerups (rare spawn)
+	// Spawn powerups (rare spawn - every 2 minutes)
 	powerupSpawnTimer++;
-	if (powerupSpawnTimer > 600 + Math.random() * 600) {
-		// 10-20 seconds
+	if (powerupSpawnTimer > 7200) {
+		// 2 minutes (120 seconds * 60 fps)
 		spawnPowerUp();
 		powerupSpawnTimer = 0;
 	}
 	// Spawn lane lines
@@ -507,10 +514,10 @@
 	// Update powerups
 	for (var p = powerups.length - 1; p >= 0; p--) {
 		var powerup = powerups[p];
 		powerup.speed = gameSpeed;
-		// Remove powerups that are off screen
-		if (powerup.y > 2800) {
+		// Remove powerups that are off screen or expired
+		if (powerup.y > 2800 || powerup.lifetime <= 0) {
 			powerup.destroy();
 			powerups.splice(p, 1);
 			continue;
 		}