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

/**** 
* Classes
****/ 
var CenterLine = Container.expand(function () {
	var self = Container.call(this);
	var centerGraphics = self.attachAsset('centerLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	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 = 8;
	self.update = function () {
		self.y += self.speed;
		// Add slight rotation for visual effect
		coinGraphics.rotation += 0.1;
	};
	return self;
});
var ExplosionEffect = Container.expand(function () {
	var self = Container.call(this);
	var explosionParts = [];
	// Create main explosion circle
	var mainExplosion = self.attachAsset('explosion', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	explosionParts.push(mainExplosion);
	// Create spark particles around the explosion
	for (var i = 0; i < 8; i++) {
		var spark = self.attachAsset('explosionSpark', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		var angle = i / 8 * Math.PI * 2;
		spark.x = Math.cos(angle) * 30;
		spark.y = Math.sin(angle) * 30;
		explosionParts.push(spark);
	}
	self.startExplosion = function () {
		// Animate main explosion - scale up and fade out
		tween(mainExplosion, {
			scaleX: 3,
			scaleY: 3,
			alpha: 0
		}, {
			duration: 800,
			easing: tween.easeOut
		});
		// Animate sparks - fly outward and fade
		for (var i = 1; i < explosionParts.length; i++) {
			var spark = explosionParts[i];
			var angle = (i - 1) / 8 * Math.PI * 2;
			var targetX = Math.cos(angle) * 120;
			var targetY = Math.sin(angle) * 120;
			tween(spark, {
				x: targetX,
				y: targetY,
				alpha: 0,
				scaleX: 0.1,
				scaleY: 0.1
			}, {
				duration: 600,
				easing: tween.easeOut
			});
		}
		// Remove explosion after animation
		LK.setTimeout(function () {
			self.destroy();
		}, 900);
	};
	return self;
});
var ObstacleCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('obstacleCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Keep car within road bounds
		if (self.x < 100) {
			self.x = 100;
		}
		if (self.x > 1948) {
			self.x = 1948;
		}
	};
	return self;
});
var RoadLine = Container.expand(function () {
	var self = Container.call(this);
	var lineGraphics = self.attachAsset('roadLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var SlowPotion = Container.expand(function () {
	var self = Container.call(this);
	var potionGraphics = self.attachAsset('slowPotion', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
		// Add rotation for visual effect
		potionGraphics.rotation += 0.08;
	};
	return self;
});
var SpeedPotion = Container.expand(function () {
	var self = Container.call(this);
	var potionGraphics = self.attachAsset('speedPotion', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
		// Add rotation for visual effect
		potionGraphics.rotation += 0.08;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x228b22
});

/**** 
* Game Code
****/ 
// Game variables
var playerCar;
var obstacles = [];
var coins = [];
var roadLines = [];
var laneDividers = [];
var centerLines = [];
var explosions = [];
var speedPotions = [];
var slowPotions = [];
var gameSpeed = 20;
var baseGameSpeed = 20;
var speedBoostActive = false;
var speedBoostTimer = 0;
var slowEffectActive = false;
var slowEffectTimer = 0;
var spawnTimer = 0;
var coinSpawnTimer = 0;
var speedPotionSpawnTimer = 0;
var slowPotionSpawnTimer = 0;
var roadLineSpawnTimer = 0;
var laneDividerSpawnTimer = 0;
var centerLineSpawnTimer = 0;
var distanceScore = 0;
var coinScore = 0;
var coinCount = 0;
var dragNode = null;
var gameStarted = false;
var lives = 3;
var effectBar;
var effectBarFill;
var effectBarVisible = false;
// Create forest background with multiple tiles for seamless scrolling
var forestBackgrounds = [];
for (var i = 0; i < 4; i++) {
	var forestBg = game.addChild(LK.getAsset('forest', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: i * 400 - 200
	}));
	forestBackgrounds.push(forestBg);
}
// Add trees on the sides for forest atmosphere
var trees = [];
for (var i = 0; i < 8; i++) {
	// Left side trees
	var leftTree = game.addChild(LK.getAsset('tree', {
		anchorX: 0.5,
		anchorY: 1,
		x: 200,
		y: i * 350 - 100
	}));
	var leftTreeTop = game.addChild(LK.getAsset('treeTop', {
		anchorX: 0.5,
		anchorY: 1,
		x: 200,
		y: i * 350 - 140
	}));
	trees.push(leftTree);
	trees.push(leftTreeTop);
	// Right side trees
	var rightTree = game.addChild(LK.getAsset('tree', {
		anchorX: 0.5,
		anchorY: 1,
		x: 1848,
		y: i * 350 - 100
	}));
	var rightTreeTop = game.addChild(LK.getAsset('treeTop', {
		anchorX: 0.5,
		anchorY: 1,
		x: 1848,
		y: i * 350 - 140
	}));
	trees.push(rightTree);
	trees.push(rightTreeTop);
}
// Create player car
playerCar = game.addChild(new PlayerCar());
playerCar.x = 1024;
playerCar.y = 2000;
// Create UI elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var coinCountText = new Text2('Coins: 0', {
	size: 40,
	fill: 0xFFD700
});
coinCountText.anchor.set(0, 0);
coinCountText.x = 150;
coinCountText.y = 100;
LK.gui.topLeft.addChild(coinCountText);
var remainingText = new Text2('Remaining: 10000m', {
	size: 40,
	fill: 0x00FF00
});
remainingText.anchor.set(0, 0);
remainingText.x = 150;
remainingText.y = 150;
LK.gui.topLeft.addChild(remainingText);
// Create heart display for lives
var hearts = [];
for (var h = 0; h < 3; h++) {
	var heart = LK.getAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	heart.scaleX = 1.7; // Increase size by 70%
	heart.scaleY = 1.7; // Increase size by 70%
	heart.x = -60 - h * 50; // Position hearts from right to left
	heart.y = 30;
	hearts.push(heart);
	LK.gui.topRight.addChild(heart);
}
// Create effect bar (hidden initially)
effectBar = LK.getAsset('effectBarBg', {
	anchorX: 0.5,
	anchorY: 0.5
});
effectBar.x = 0;
effectBar.y = -100;
effectBar.alpha = 0;
effectBar.scaleX = 1.4;
effectBar.scaleY = 1.4;
LK.gui.bottom.addChild(effectBar);
effectBarFill = LK.getAsset('effectBarFill', {
	anchorX: 0,
	anchorY: 0.5
});
effectBarFill.x = -149;
effectBarFill.y = 0;
effectBar.addChild(effectBarFill);
// Touch controls
function handleMove(x, y, obj) {
	if (dragNode && gameStarted) {
		// Constrain car to road bounds (between 324 and 1724)
		var roadLeftBound = 324;
		var roadRightBound = 1724;
		if (x < roadLeftBound) {
			playerCar.x = roadLeftBound;
		} else if (x > roadRightBound) {
			playerCar.x = roadRightBound;
		} else {
			playerCar.x = x;
		}
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		LK.stopMusic();
		LK.playMusic('bgMusic');
	}
	dragNode = playerCar;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Spawn functions
function spawnObstacle() {
	var obstacle = new ObstacleCar();
	obstacle.x = Math.random() * 1400 + 324; // Random X position within safe road bounds (324 to 1724)
	obstacle.y = -100;
	obstacle.speed = gameSpeed;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnCoin() {
	var coin = new Coin();
	var attempts = 0;
	var maxAttempts = 10;
	var validPosition = false;
	var minDistance = 200; // Minimum distance between coins and obstacles
	var coinX,
		coinY = -100;
	// Try to find a valid position away from obstacles
	while (!validPosition && attempts < maxAttempts) {
		coinX = Math.random() * 1400 + 324; // Random X position within safe road bounds (324 to 1724)
		validPosition = true;
		// Check distance from all existing obstacles
		for (var i = 0; i < obstacles.length; i++) {
			var obstacle = obstacles[i];
			// Only check obstacles that are close vertically (within spawn range)
			if (obstacle.y > -500 && obstacle.y < 500) {
				var distance = Math.sqrt(Math.pow(coinX - obstacle.x, 2) + Math.pow(coinY - obstacle.y, 2));
				if (distance < minDistance) {
					validPosition = false;
					break;
				}
			}
		}
		attempts++;
	}
	coin.x = coinX;
	coin.y = coinY;
	coin.speed = gameSpeed;
	coins.push(coin);
	game.addChild(coin);
}
function spawnRoadLine() {
	var roadLine = new RoadLine();
	roadLine.x = 1024;
	roadLine.y = -100;
	roadLine.speed = gameSpeed;
	roadLines.push(roadLine);
	game.addChild(roadLine);
}
function spawnLaneDivider() {
	// Create lane dividers for left and right lanes
	var leftDivider = game.addChild(LK.getAsset('laneDivider', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 700,
		y: -100
	}));
	leftDivider.speed = gameSpeed;
	laneDividers.push(leftDivider);
	var rightDivider = game.addChild(LK.getAsset('laneDivider', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1348,
		y: -100
	}));
	rightDivider.speed = gameSpeed;
	laneDividers.push(rightDivider);
}
function spawnCenterLine() {
	var centerLine = new CenterLine();
	centerLine.x = 1024;
	centerLine.y = -100;
	centerLine.speed = gameSpeed;
	centerLines.push(centerLine);
	game.addChild(centerLine);
}
function spawnSpeedPotion() {
	var potion = new SpeedPotion();
	var attempts = 0;
	var maxAttempts = 10;
	var validPosition = false;
	var minDistance = 200;
	var potionX,
		potionY = -100;
	// Try to find a valid position away from obstacles
	while (!validPosition && attempts < maxAttempts) {
		potionX = Math.random() * 1400 + 324;
		validPosition = true;
		// Check distance from all existing obstacles
		for (var i = 0; i < obstacles.length; i++) {
			var obstacle = obstacles[i];
			if (obstacle.y > -500 && obstacle.y < 500) {
				var distance = Math.sqrt(Math.pow(potionX - obstacle.x, 2) + Math.pow(potionY - obstacle.y, 2));
				if (distance < minDistance) {
					validPosition = false;
					break;
				}
			}
		}
		attempts++;
	}
	potion.x = potionX;
	potion.y = potionY;
	potion.speed = gameSpeed;
	speedPotions.push(potion);
	game.addChild(potion);
}
function spawnSlowPotion() {
	var potion = new SlowPotion();
	var attempts = 0;
	var maxAttempts = 10;
	var validPosition = false;
	var minDistance = 200;
	var potionX,
		potionY = -100;
	// Try to find a valid position away from obstacles
	while (!validPosition && attempts < maxAttempts) {
		potionX = Math.random() * 1400 + 324;
		validPosition = true;
		// Check distance from all existing obstacles
		for (var i = 0; i < obstacles.length; i++) {
			var obstacle = obstacles[i];
			if (obstacle.y > -500 && obstacle.y < 500) {
				var distance = Math.sqrt(Math.pow(potionX - obstacle.x, 2) + Math.pow(potionY - obstacle.y, 2));
				if (distance < minDistance) {
					validPosition = false;
					break;
				}
			}
		}
		attempts++;
	}
	potion.x = potionX;
	potion.y = potionY;
	potion.speed = gameSpeed;
	slowPotions.push(potion);
	game.addChild(potion);
}
// Main game loop
game.update = function () {
	if (!gameStarted) {
		return;
	}
	// Update distance score at a slower rate
	distanceScore += gameSpeed / 60;
	// Increase game speed gradually with acceleration
	if (LK.ticks % 300 === 0) {
		// Accelerate faster as time goes on
		var acceleration = 0.5 + distanceScore / 1000 * 0.2;
		gameSpeed += acceleration;
	}
	// Spawn obstacles more frequently as speed increases
	spawnTimer++;
	var obstacleSpawnRate = Math.max(18, 54 - gameSpeed * 3.9);
	if (spawnTimer > obstacleSpawnRate) {
		spawnObstacle();
		spawnTimer = 0;
	}
	// Spawn coins
	coinSpawnTimer++;
	if (coinSpawnTimer > 96) {
		// Increased spawn rate by 20% from previous (120 * 0.8 = 96)
		spawnCoin();
		coinSpawnTimer = 0;
	}
	// Spawn speed potions (less frequently than coins)
	speedPotionSpawnTimer++;
	if (speedPotionSpawnTimer > 310) {
		// Increased spawn rate by 20% from previous (387 * 0.8 ≈ 310)
		spawnSpeedPotion();
		speedPotionSpawnTimer = 0;
	}
	// Spawn slow potions (same frequency as speed potions)
	slowPotionSpawnTimer++;
	if (slowPotionSpawnTimer > 350) {
		spawnSlowPotion();
		slowPotionSpawnTimer = 0;
	}
	// Handle speed boost timer
	if (speedBoostActive) {
		speedBoostTimer--;
		if (speedBoostTimer <= 0) {
			speedBoostActive = false;
			gameSpeed = baseGameSpeed;
			// Hide effect bar
			effectBarVisible = false;
			tween(effectBar, {
				alpha: 0
			}, {
				duration: 300
			});
			// Visual feedback that boost ended
			tween(playerCar, {
				tint: 0xFFFFFF
			}, {
				duration: 500
			});
		}
	}
	// Handle slow effect timer
	if (slowEffectActive) {
		slowEffectTimer--;
		if (slowEffectTimer <= 0) {
			slowEffectActive = false;
			gameSpeed = baseGameSpeed;
			// Hide effect bar
			effectBarVisible = false;
			tween(effectBar, {
				alpha: 0
			}, {
				duration: 300
			});
			// Visual feedback that slow effect ended
			tween(playerCar, {
				tint: 0xFFFFFF
			}, {
				duration: 500
			});
		}
	}
	// Spawn road lines
	roadLineSpawnTimer++;
	if (roadLineSpawnTimer > 40) {
		spawnRoadLine();
		roadLineSpawnTimer = 0;
	}
	// Spawn lane dividers more frequently as speed increases
	laneDividerSpawnTimer++;
	var laneDividerSpawnRate = Math.max(15, 30 - gameSpeed * 1.5);
	if (laneDividerSpawnTimer > laneDividerSpawnRate) {
		spawnLaneDivider();
		laneDividerSpawnTimer = 0;
	}
	// Spawn center lines more frequently as speed increases
	centerLineSpawnTimer++;
	var centerLineSpawnRate = Math.max(12, 25 - gameSpeed * 1.2);
	if (centerLineSpawnTimer > centerLineSpawnRate) {
		spawnCenterLine();
		centerLineSpawnTimer = 0;
	}
	// Update and check obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		if (obstacle.lastY === undefined) {
			obstacle.lastY = obstacle.y;
		}
		// Remove off-screen obstacles
		if (obstacle.lastY < 2800 && obstacle.y >= 2800) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (obstacle.intersects(playerCar)) {
			// Create explosion effect at collision point
			var explosion = new ExplosionEffect();
			explosion.x = playerCar.x;
			explosion.y = playerCar.y;
			explosions.push(explosion);
			game.addChild(explosion);
			explosion.startExplosion();
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 1000);
			// Decrease lives
			lives--;
			// Hide a heart instead of updating text
			if (lives >= 0 && lives < hearts.length) {
				hearts[hearts.length - 1 - lives].alpha = 0.3; // Make heart semi-transparent when lost
			}
			// Remove the obstacle that caused collision
			obstacle.destroy();
			obstacles.splice(i, 1);
			// Check if game over
			if (lives <= 0) {
				// Ensure final score is set correctly before game over
				LK.setScore(Math.floor(distanceScore) + coinScore);
				LK.showGameOver();
				return;
			}
			continue;
		}
		obstacle.lastY = obstacle.y;
	}
	// Update and check coins
	for (var j = coins.length - 1; j >= 0; j--) {
		var coin = coins[j];
		if (coin.lastY === undefined) {
			coin.lastY = coin.y;
		}
		if (coin.lastCollected === undefined) {
			coin.lastCollected = false;
		}
		// Remove off-screen coins
		if (coin.lastY < 2800 && coin.y >= 2800) {
			coin.destroy();
			coins.splice(j, 1);
			continue;
		}
		// Check collection
		var currentCollected = coin.intersects(playerCar);
		if (!coin.lastCollected && currentCollected) {
			LK.getSound('collectCoin').play();
			coinCount += 1;
			coinScore += 50;
			LK.setScore(Math.floor(distanceScore) + coinScore);
			coin.destroy();
			coins.splice(j, 1);
			continue;
		}
		coin.lastY = coin.y;
		coin.lastCollected = currentCollected;
	}
	// Update and check speed potions
	for (var sp = speedPotions.length - 1; sp >= 0; sp--) {
		var potion = speedPotions[sp];
		if (potion.lastY === undefined) {
			potion.lastY = potion.y;
		}
		if (potion.lastCollected === undefined) {
			potion.lastCollected = false;
		}
		// Remove off-screen potions
		if (potion.lastY < 2800 && potion.y >= 2800) {
			potion.destroy();
			speedPotions.splice(sp, 1);
			continue;
		}
		// Check collection
		var currentPotionCollected = potion.intersects(playerCar);
		if (!potion.lastCollected && currentPotionCollected) {
			// Activate speed boost
			speedBoostActive = true;
			speedBoostTimer = 300; // 5 seconds at 60 FPS
			baseGameSpeed = gameSpeed;
			gameSpeed = gameSpeed * 1.5; // 50% speed increase
			// Show effect bar
			effectBarVisible = true;
			effectBarFill.tint = 0x00FFFF; // Blue for speed boost
			tween(effectBar, {
				alpha: 1
			}, {
				duration: 200
			});
			// Visual feedback for speed boost
			tween(playerCar, {
				tint: 0x00FFFF
			}, {
				duration: 300
			});
			potion.destroy();
			speedPotions.splice(sp, 1);
			continue;
		}
		potion.lastY = potion.y;
		potion.lastCollected = currentPotionCollected;
	}
	// Update and check slow potions
	for (var slp = slowPotions.length - 1; slp >= 0; slp--) {
		var slowPotion = slowPotions[slp];
		if (slowPotion.lastY === undefined) {
			slowPotion.lastY = slowPotion.y;
		}
		if (slowPotion.lastCollected === undefined) {
			slowPotion.lastCollected = false;
		}
		// Remove off-screen potions
		if (slowPotion.lastY < 2800 && slowPotion.y >= 2800) {
			slowPotion.destroy();
			slowPotions.splice(slp, 1);
			continue;
		}
		// Check collection
		var currentSlowPotionCollected = slowPotion.intersects(playerCar);
		if (!slowPotion.lastCollected && currentSlowPotionCollected) {
			// Activate slow effect
			slowEffectActive = true;
			slowEffectTimer = 300; // 5 seconds at 60 FPS
			baseGameSpeed = gameSpeed;
			gameSpeed = gameSpeed * 0.5; // 50% speed decrease
			// Show effect bar
			effectBarVisible = true;
			effectBarFill.tint = 0xFF6600; // Orange for slow effect
			tween(effectBar, {
				alpha: 1
			}, {
				duration: 200
			});
			// Visual feedback for slow effect
			tween(playerCar, {
				tint: 0x0000FF
			}, {
				duration: 300
			});
			slowPotion.destroy();
			slowPotions.splice(slp, 1);
			continue;
		}
		slowPotion.lastY = slowPotion.y;
		slowPotion.lastCollected = currentSlowPotionCollected;
	}
	// Update and remove road lines
	for (var k = roadLines.length - 1; k >= 0; k--) {
		var roadLine = roadLines[k];
		if (roadLine.lastY === undefined) {
			roadLine.lastY = roadLine.y;
		}
		if (roadLine.lastY < 2800 && roadLine.y >= 2800) {
			roadLine.destroy();
			roadLines.splice(k, 1);
			continue;
		}
		roadLine.lastY = roadLine.y;
	}
	// Update and remove lane dividers
	for (var d = laneDividers.length - 1; d >= 0; d--) {
		var divider = laneDividers[d];
		if (divider.lastY === undefined) {
			divider.lastY = divider.y;
		}
		divider.y += divider.speed;
		if (divider.lastY < 2800 && divider.y >= 2800) {
			divider.destroy();
			laneDividers.splice(d, 1);
			continue;
		}
		divider.lastY = divider.y;
	}
	// Update and remove center lines
	for (var c = centerLines.length - 1; c >= 0; c--) {
		var centerLine = centerLines[c];
		if (centerLine.lastY === undefined) {
			centerLine.lastY = centerLine.y;
		}
		if (centerLine.lastY < 2800 && centerLine.y >= 2800) {
			centerLine.destroy();
			centerLines.splice(c, 1);
			continue;
		}
		centerLine.lastY = centerLine.y;
	}
	// Check win condition
	var totalScore = Math.floor(distanceScore) + coinScore;
	if (totalScore >= 10000) {
		// Ensure final score is set correctly before showing win
		LK.setScore(totalScore);
		LK.showYouWin();
		return;
	}
	// Update UI
	scoreText.setText('Score: ' + totalScore);
	var remainingDistance = Math.max(0, 10000 - totalScore);
	remainingText.setText('Remaining: ' + remainingDistance + 'm');
	coinCountText.setText('Coins: ' + coinCount);
	// Scroll forest backgrounds for realistic movement
	for (var bg = 0; bg < forestBackgrounds.length; bg++) {
		forestBackgrounds[bg].y += gameSpeed;
		// Reset position when tile moves off screen
		if (forestBackgrounds[bg].y > 2932) {
			forestBackgrounds[bg].y = forestBackgrounds[bg].y - 4 * 400;
		}
	}
	// Scroll trees for realistic movement
	for (var t = 0; t < trees.length; t++) {
		trees[t].y += gameSpeed;
		// Reset position when tree moves off screen
		if (trees[t].y > 2932) {
			trees[t].y = trees[t].y - 8 * 350;
		}
	}
	// Update speeds for all moving objects
	for (var l = 0; l < obstacles.length; l++) {
		obstacles[l].speed = gameSpeed;
	}
	for (var m = 0; m < coins.length; m++) {
		coins[m].speed = gameSpeed;
	}
	for (var n = 0; n < roadLines.length; n++) {
		roadLines[n].speed = gameSpeed;
	}
	for (var d = 0; d < laneDividers.length; d++) {
		laneDividers[d].speed = gameSpeed;
	}
	for (var cl = 0; cl < centerLines.length; cl++) {
		centerLines[cl].speed = gameSpeed;
	}
	for (var sp = 0; sp < speedPotions.length; sp++) {
		speedPotions[sp].speed = gameSpeed;
	}
	for (var slp = 0; slp < slowPotions.length; slp++) {
		slowPotions[slp].speed = gameSpeed;
	}
	// Update effect bar
	if (effectBarVisible) {
		var currentTimer = 0;
		var maxTimer = 300;
		if (speedBoostActive) {
			currentTimer = speedBoostTimer;
		} else if (slowEffectActive) {
			currentTimer = slowEffectTimer;
		}
		// Update bar width based on remaining time
		var fillWidth = currentTimer / maxTimer * 298;
		effectBarFill.width = Math.max(0, fillWidth);
	}
};

===================================================================
--- original.js
+++ change.js
@@ -489,9 +489,10 @@
 		spawnTimer = 0;
 	}
 	// Spawn coins
 	coinSpawnTimer++;
-	if (coinSpawnTimer > 120) {
+	if (coinSpawnTimer > 96) {
+		// Increased spawn rate by 20% from previous (120 * 0.8 = 96)
 		spawnCoin();
 		coinSpawnTimer = 0;
 	}
 	// Spawn speed potions (less frequently than coins)