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

/**** 
* Classes
****/ 
// Define a class for flying bird enemies
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Apply a tint to make it look different from regular enemies
	birdGraphics.tint = 0x00FFFF;
	// Create a hitbox for the bird
	self.hitArea = new Rectangle(-30, -30, 60, 60);
	self.speed = 6;
	self.verticalSpeed = 0;
	self.amplitude = 100; // How high the bird flies up and down
	self.frequency = 0.05; // How fast the bird completes a wave cycle
	self.initialY = 0; // Will store the initial Y position
	self.time = 0; // Time counter for sine wave movement
	self.update = function () {
		// Store last position for collision detection
		if (self.lastX === undefined) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.lastWasIntersecting = false;
		}
		// Bird moves regardless of collisions with other enemies
		// Move bird horizontally
		self.x -= self.speed;
		// Update time counter
		self.time += self.frequency;
		// Apply sine wave vertical movement
		self.y = self.initialY + Math.sin(self.time) * self.amplitude;
		// Rotate bird slightly to match flight direction
		self.rotation = Math.sin(self.time) * 0.2;
		// Remove bird if it's off screen
		if (self.x < -50) {
			// Remove from enemies array when reaching the left side
			for (var i = 0; i < enemies.length; i++) {
				if (enemies[i] === self) {
					enemies.splice(i, 1);
					break;
				}
			}
			self.destroy();
		}
		// Update last positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
	return self;
});
// Define a class for enemies
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Create a much smaller hitbox for the enemy (reduce the collision area)
	self.hitArea = new Rectangle(-30, -30, 60, 60);
	self.speed = 8;
	self.update = function () {
		// Store last position for collision detection
		if (self.lastX === undefined) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.lastWasIntersecting = false;
		}
		// Enemy moves regardless of collisions with other enemies
		self.x -= self.speed;
		// Make the enemy roll by rotating it in the opposite direction
		self.rotation -= 0.1;
		if (self.x < -50) {
			// Remove from enemies array when reaching the left side
			for (var i = 0; i < enemies.length; i++) {
				if (enemies[i] === self) {
					enemies.splice(i, 1);
					break;
				}
			}
			self.destroy();
		}
		// Update last positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
});
// Define a class for enemies that fall from the sky
var FallingEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Apply a purple tint to make it visually distinct
	enemyGraphics.tint = 0x9900FF;
	// Create a hitbox for the falling enemy
	self.hitArea = new Rectangle(-35, -35, 70, 70);
	self.fallSpeed = 10;
	self.rotationSpeed = 0.08;
	self.update = function () {
		// Store last position for collision detection
		if (self.lastX === undefined) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.lastWasIntersecting = false;
		}
		// FallingEnemy moves regardless of collisions with other enemies
		// Move enemy down
		self.y += self.fallSpeed;
		// Rotate enemy as it falls
		self.rotation += self.rotationSpeed;
		// Remove if off screen
		if (self.y > 2732 + 100) {
			// Remove from enemies array when reaching the bottom
			for (var i = 0; i < enemies.length; i++) {
				if (enemies[i] === self) {
					enemies.splice(i, 1);
					break;
				}
			}
			self.destroy();
		}
		// Update last positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
	return self;
});
// Define a class for heart display
var Heart = Container.expand(function () {
	var self = Container.call(this);
	// Create a heart using the heart asset
	var heartShape = self.attachAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Animate heart slightly
	self.animate = function () {
		tween(self, {
			scaleX: 1.1,
			scaleY: 1.1
		}, {
			duration: 800,
			easing: tween.easeInOutQuad,
			onFinish: function onFinish() {
				tween(self, {
					scaleX: 1.0,
					scaleY: 1.0
				}, {
					duration: 800,
					easing: tween.easeInOutQuad,
					onFinish: self.animate
				});
			}
		});
	};
	return self;
});
// Define a class for heart pickups that fly in the sky
var HeartPickup = Container.expand(function () {
	var self = Container.call(this);
	var heartGraphics = self.attachAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add visual effects to make the heart look more like a pickup
	heartGraphics.tint = 0xFF8FB8; // Lighter pink color
	// Create a hitbox for the heart
	self.hitArea = new Rectangle(-35, -35, 70, 70);
	// Movement properties
	self.speed = 3 + Math.random() * 2; // Random speed between 3-5
	self.floatAmplitude = 40 + Math.random() * 30; // Random float height
	self.floatSpeed = 0.03 + Math.random() * 0.02; // Random float speed
	self.initialY = 0;
	self.time = Math.random() * Math.PI * 2; // Random starting position in float cycle
	// Wings have been removed
	// Wing animation method removed
	// No wing animation needed
	self.update = function () {
		// Store last position for collision detection
		if (self.lastX === undefined) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.lastWasIntersecting = false;
		}
		// Move heart horizontally
		self.x -= self.speed;
		// Apply floating movement
		self.time += self.floatSpeed;
		self.y = self.initialY + Math.sin(self.time) * self.floatAmplitude;
		// Remove heart if it's off screen
		if (self.x < -100) {
			// Remove from hearts array
			for (var i = 0; i < heartPickups.length; i++) {
				if (heartPickups[i] === self) {
					heartPickups.splice(i, 1);
					break;
				}
			}
			self.destroy();
		}
		// Update last positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
	return self;
});
//<Assets used in the game will automatically appear here>
// Define a class for the player character
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Create a smaller hitbox for the player to make collisions more precise
	self.hitArea = new Rectangle(-50, -30, 100, 60);
	self.speed = 5;
	self.jumpHeight = 40;
	self.isJumping = false;
	self.velocityY = 0;
	self.invulnerable = false;
	self.jumpsRemaining = 2; // Allow for double jump (initial + 1 more in air)
	self.update = function () {
		if (self.isJumping) {
			self.y += self.velocityY;
			self.velocityY += 0.9; // Gravity effect
			if (self.y >= 2732 / 2) {
				// Ground level
				self.y = 2732 / 2;
				self.isJumping = false;
				self.velocityY = 0;
				self.jumpsRemaining = 2; // Reset jumps when landing
				// Add landing animation - slight squash effect
				tween(self, {
					scaleX: 1.3,
					scaleY: 0.7
				}, {
					duration: 200,
					easing: tween.easeOutQuad,
					onFinish: function onFinish() {
						// Return to normal scale
						tween(self, {
							scaleX: 1.0,
							scaleY: 1.0
						}, {
							duration: 300,
							easing: tween.easeOutElastic
						});
					}
				});
			}
		}
		// Check for falling enemies above the player
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			if (enemy instanceof FallingEnemy && enemy.y > self.y - 400 && enemy.y < self.y && Math.abs(enemy.x - self.x) < 100 && self.isJumping && self.velocityY < 0) {
				// If player is jumping upward into a falling enemy, destroy it
				enemies.splice(i, 1);
				enemy.destroy();
				// Give bonus score
				// Check if score was reset to 0 and restart music
				if (LK.getScore() === 0) {
					LK.stopMusic();
					LK.playMusic('epicMusic', {
						loop: true,
						fade: {
							start: 0,
							end: 0.8,
							duration: 2000
						}
					});
				}
				LK.setScore(LK.getScore() + 5);
				scoreText.setText(LK.getScore());
				// Add visual effect for killing enemy
				LK.effects.flashObject(self, 0x00ff00, 500);
				break;
			}
		}
	};
	self.jump = function () {
		// Allow jumping if either on ground or have jumps remaining
		if (!self.isJumping || self.jumpsRemaining > 0) {
			// Only play jump sound on first jump (not on double jump)
			if (!self.isJumping) {
				// Play jump sound effect only for the initial jump
				LK.getSound('jump').play();
			}
			// If already jumping, this is a double jump
			if (self.isJumping) {
				self.jumpsRemaining--;
				// Second jump has significantly less height
				self.velocityY = -self.jumpHeight * 0.6;
			} else {
				// First jump
				self.isJumping = true;
				self.jumpsRemaining = 1; // One more jump available after initial jump
				self.velocityY = -self.jumpHeight;
			}
			// Add a jump animation - squash before stretching up
			tween(self, {
				scaleX: 1.2,
				scaleY: 0.8
			}, {
				duration: 150,
				easing: tween.easeOutQuad,
				onFinish: function onFinish() {
					// Stretch when jumping up
					tween(self, {
						scaleX: 0.9,
						scaleY: 1.3
					}, {
						duration: 300,
						easing: tween.easeOutQuad,
						onFinish: function onFinish() {
							// Return to normal scale gradually
							tween(self, {
								scaleX: 1.0,
								scaleY: 1.0
							}, {
								duration: 400,
								easing: tween.easeInOutQuad
							});
						}
					});
				}
			});
		}
	};
});
// Define a class for enemies that shoot from the right side
var ShootingEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Apply a green tint to make it visually distinct
	enemyGraphics.tint = 0x00FF00;
	// Create a hitbox for the shooting enemy
	self.hitArea = new Rectangle(-30, -30, 60, 60);
	// Movement properties - much faster
	self.speed = 10; // Significantly faster than regular enemies
	self.update = function () {
		// Store last position for collision detection
		if (self.lastX === undefined) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.lastWasIntersecting = false;
		}
		// Move enemy much faster
		self.x -= self.speed * 2.5;
		// Make the enemy roll by rotating it in the opposite direction
		self.rotation -= 0.1;
		// Remove if off screen
		if (self.x < -100) {
			// Remove from enemies array
			for (var i = 0; i < enemies.length; i++) {
				if (enemies[i] === self) {
					enemies.splice(i, 1);
					break;
				}
			}
			self.destroy();
		}
		// Update last positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
	return self;
});
// Portal class removed as it's no longer needed
// Define a class for slow, big enemies
var SlowEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Make it slightly larger but smaller than before
	enemyGraphics.scale.set(1.8, 1.8);
	// Apply a reddish tint to make it look more threatening
	enemyGraphics.tint = 0xFF5555;
	// Create a hitbox that matches the new smaller size
	self.hitArea = new Rectangle(-55, -55, 110, 110);
	// Faster speed compared to previous value
	self.speed = 5;
	self.update = function () {
		// Store last position for collision detection
		if (self.lastX === undefined) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.lastWasIntersecting = false;
		}
		// SlowEnemy moves regardless of collisions with other enemies
		// Move enemy slowly
		self.x -= self.speed;
		// Make the enemy roll but slower than regular enemies
		self.rotation -= 0.04;
		// Remove if off screen
		if (self.x < -100) {
			// Remove from enemies array when reaching the left side
			for (var i = 0; i < enemies.length; i++) {
				if (enemies[i] === self) {
					enemies.splice(i, 1);
					break;
				}
			}
			self.destroy();
		}
		// Update last positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
	return self;
});
// Define a class for small, fast enemies
var SmallEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Scale down the enemy to make it smaller
	enemyGraphics.scale.set(0.7, 0.7);
	// Apply a yellow tint to make it visually distinct
	enemyGraphics.tint = 0xFFFF00;
	// Create a hitbox that matches the smaller size
	self.hitArea = new Rectangle(-20, -20, 40, 40);
	// Faster speed compared to normal enemy
	self.speed = 12;
	self.update = function () {
		// Store last position for collision detection
		if (self.lastX === undefined) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.lastWasIntersecting = false;
		}
		// Move enemy fast
		self.x -= self.speed;
		// Make the enemy roll by rotating it in the opposite direction
		self.rotation -= 0.15;
		// Remove if off screen
		if (self.x < -50) {
			// Remove from enemies array when reaching the left side
			for (var i = 0; i < enemies.length; i++) {
				if (enemies[i] === self) {
					enemies.splice(i, 1);
					break;
				}
			}
			self.destroy();
		}
		// Update last positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x654321 // Darker brown background
});

/**** 
* Game Code
****/ 
// Using same asset as enemy but will be tinted differently
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background.x = 0;
background.y = 0;
// Add a second background for the empty space
var background2 = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background2.x = background.width;
background2.y = 0;
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 / 2;
// Enemies will spawn from the right edge without a portal
// Initialize enemies
var enemies = [];
var enemySpawnInterval = 100;
var enemySpawnCounter = 0;
// Create a new Text2 object to display the score
var scoreText = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
// Add instruction text
var instructionText = new Text2('Tap once to jump, tap again for double jump!', {
	size: 64,
	fill: 0xFFFFFF
});
LK.gui.bottom.addChild(instructionText);
instructionText.x = 2048 / 2;
instructionText.y = -100;
instructionText.anchor.set(0.5, 0.5);
// Fade out instruction after 5 seconds
LK.setTimeout(function () {
	tween(instructionText, {
		alpha: 0
	}, {
		duration: 1000,
		easing: tween.easeInCubic
	});
}, 5000);
// Add the score text to the game GUI at the top center of the screen
LK.gui.top.addChild(scoreText);
scoreText.x = 2048 / 2;
scoreText.y = 0;
// Initialize lives counter
var lives = 3;
var hearts = [];
var heartsContainer = new Container();
game.addChild(heartsContainer);
// Position hearts container in the middle of the screen
heartsContainer.x = 2048 / 2;
heartsContainer.y = 150;
// Create heart display
function updateHeartDisplay() {
	// Clear existing hearts
	while (hearts.length > 0) {
		var heart = hearts.pop();
		heart.destroy();
	}
	// Create new hearts based on current lives
	for (var i = 0; i < lives; i++) {
		var heart = new Heart();
		heart.x = (i - (lives - 1) / 2) * 100; // Distribute hearts evenly
		heart.y = 0;
		hearts.push(heart);
		heartsContainer.addChild(heart);
		heart.animate();
	}
}
// Initial heart display
updateHeartDisplay();
// Play epic background music with fade-in effect
LK.playMusic('epicMusic', {
	fade: {
		start: 0,
		end: 0.8,
		duration: 2000
	}
});
// Add listener for game reset to restart music
LK.on('gameReset', function () {
	// Restart the music when game resets from the beginning (second 0)
	LK.stopMusic(); // Stop current music to ensure we start from the beginning
	LK.playMusic('epicMusic', {
		loop: true,
		fade: {
			start: 0,
			end: 0.8,
			duration: 2000
		}
	});
});
// Add listener for game over to restart music
LK.on('gameOver', function () {
	// Stop current music to ensure we start from the beginning
	LK.stopMusic();
	// Restart the music from the beginning
	LK.playMusic('epicMusic', {
		loop: true,
		fade: {
			start: 0,
			end: 0.8,
			duration: 2000
		}
	});
});
// Initialize array for heart pickups
var heartPickups = [];
// Variables for heart spawn control
var heartSpawnInterval = 600; // Less frequent than enemies
var heartSpawnCounter = 0;
// Handle game updates
game.update = function () {
	player.update();
	// No portal to update
	// Spawn hearts occasionally
	heartSpawnCounter++;
	if (heartSpawnCounter >= heartSpawnInterval) {
		// Only spawn heart if player has less than maximum lives
		if (lives < 3) {
			var heartPickup = new HeartPickup();
			heartPickup.x = 2048 + 100; // Start right of screen
			heartPickup.y = player.y; // Spawn at the same y position as the player
			heartPickup.initialY = heartPickup.y;
			heartPickups.push(heartPickup);
			game.addChild(heartPickup);
			// Add spawn effect
			heartPickup.scale.set(0.1, 0.1);
			tween(heartPickup, {
				scaleX: 1.0,
				scaleY: 1.0
			}, {
				duration: 500,
				easing: tween.easeOutElastic
			});
		}
		// Reset heart spawn counter and randomize next interval
		heartSpawnInterval = Math.floor(Math.random() * 400) + 600; // Between 600-1000
		heartSpawnCounter = 0;
	}
	// Update all heart pickups
	for (var i = heartPickups.length - 1; i >= 0; i--) {
		heartPickups[i].update();
		// Check if player collected the heart
		if (player.intersects(heartPickups[i])) {
			// Regenerate one heart if not at max
			if (lives < 3) {
				lives++;
				updateHeartDisplay();
				// Play yeah sound when gaining a heart
				LK.getSound('yeah').play();
				// Show healing effect
				LK.effects.flashObject(player, 0x00FF00, 500);
				// Show text effect
				var healText = new Text2('+1', {
					size: 80,
					fill: 0x00FF00
				});
				healText.anchor.set(0.5, 0.5);
				healText.x = player.x;
				healText.y = player.y - 100;
				game.addChild(healText);
				// Animate and remove text
				tween(healText, {
					y: healText.y - 150,
					alpha: 0
				}, {
					duration: 1000,
					easing: tween.easeOutCubic,
					onFinish: function onFinish() {
						healText.destroy();
					}
				});
			}
			// Remove heart pickup
			heartPickups[i].destroy();
			heartPickups.splice(i, 1);
		}
	}
	// Spawn enemies
	enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		// Enemies spawn without portal effects
		// Track if a slow enemy is present in the game
		var hasSlowEnemy = false;
		for (var i = 0; i < enemies.length; i++) {
			if (enemies[i] instanceof SlowEnemy) {
				hasSlowEnemy = true;
				break;
			}
		}
		// Ensure first three enemies are normal enemies
		var spawnChance = 0;
		if (LK.getScore() < 3) {
			// Force normal enemy for first three spawns
			spawnChance = 0;
		} else {
			// Randomly decide between enemy types
			spawnChance = Math.random();
		}
		// If a slow enemy is present, don't spawn normal enemies
		if (hasSlowEnemy && spawnChance < 0.4) {
			// Redirect to either bird or falling enemy
			spawnChance = 0.4 + spawnChance * 0.6; // Scale between 0.4 and 0.7
		}
		if (spawnChance < 0.25) {
			// 25% chance for regular enemy (only if no slow enemy is present)
			var enemy = new Enemy();
			enemy.x = 2048; // Right edge of screen
			// Set enemy Y position to match player when player is on ground
			enemy.y = !player.isJumping ? player.y : 2732 / 2; // Match player Y if on ground, otherwise middle of screen
			enemies.push(enemy);
			game.addChild(enemy);
			// Apply rolling animation with tween in the opposite direction
			tween(enemy, {
				rotation: -Math.PI * 4
			}, {
				duration: 2000,
				easing: tween.linear,
				onFinish: function onFinish() {
					// Continuously roll the enemy in the opposite direction
					tween(enemy, {
						rotation: enemy.rotation - Math.PI * 4
					}, {
						duration: 2000,
						easing: tween.linear
					});
				}
			});
		} else if (spawnChance < 0.35) {
			// 10% chance for small, fast enemy
			var smallEnemy = new SmallEnemy();
			smallEnemy.x = 2048; // Right edge of screen
			// Set enemy Y position to match player when player is on ground
			smallEnemy.y = !player.isJumping ? player.y : 2732 / 2; // Match player Y if on ground, otherwise middle of screen
			enemies.push(smallEnemy);
			game.addChild(smallEnemy);
			// Apply faster rolling animation with tween
			tween(smallEnemy, {
				rotation: -Math.PI * 6
			}, {
				duration: 1500,
				easing: tween.linear,
				onFinish: function onFinish() {
					// Continuously roll the enemy in the opposite direction
					tween(smallEnemy, {
						rotation: smallEnemy.rotation - Math.PI * 6
					}, {
						duration: 1500,
						easing: tween.linear
					});
				}
			});
		} else if (spawnChance < 0.55) {
			// 20% chance for bird
			var bird = new Bird();
			bird.x = 2048; // Right edge of screen
			bird.y = Math.random() * (2732 / 2 - 400) + 400; // Random position between 400 and half the screen height
			bird.initialY = bird.y; // Set the initial Y position for the sine wave
			enemies.push(bird);
			game.addChild(bird);
			// Apply flapping wing animation
			tween(bird, {
				scaleY: 0.85
			}, {
				duration: 300,
				easing: tween.easeInOutQuad,
				onFinish: function onFinish() {
					// Flap wings function that will call itself repeatedly
					function flapWings() {
						tween(bird, {
							scaleY: 1.15
						}, {
							duration: 300,
							easing: tween.easeInOutQuad,
							onFinish: function onFinish() {
								tween(bird, {
									scaleY: 0.85
								}, {
									duration: 300,
									easing: tween.easeInOutQuad,
									onFinish: flapWings
								});
							}
						});
					}
					flapWings();
				}
			});
		} else if (spawnChance < 0.75) {
			// 20% chance for shooting enemy
			// Create warning stripe before shooting enemy appears
			var warningStripe = game.addChild(LK.getAsset('hitbox', {
				anchorX: 0,
				anchorY: 0.5,
				width: 2048,
				height: 50
			}));
			warningStripe.y = Math.random() * (2732 / 2 - 200) + 200; // Random position higher than ground
			warningStripe.tint = 0xFF0000; // Red warning stripe
			warningStripe.alpha = 0.7;
			// Flash warning stripe
			tween(warningStripe, {
				alpha: 0.3
			}, {
				duration: 300,
				easing: tween.linear,
				onFinish: function onFinish() {
					tween(warningStripe, {
						alpha: 0.7
					}, {
						duration: 300,
						easing: tween.linear,
						onFinish: function onFinish() {
							// Spawn shooting enemy after warning
							var shootEnemy = new ShootingEnemy();
							shootEnemy.x = 2048; // Right edge of screen
							shootEnemy.y = warningStripe.y; // Use same Y position as warning stripe
							enemies.push(shootEnemy);
							game.addChild(shootEnemy);
							// Remove warning stripe
							warningStripe.destroy();
						}
					});
				}
			});
		} else if (spawnChance < 0.85) {
			// 10% chance for slow, big enemy
			var slowEnemy = new SlowEnemy();
			slowEnemy.x = 2048; // Right edge of screen
			// Set slow enemy Y position to match player when player is on ground
			slowEnemy.y = !player.isJumping ? player.y : 2732 / 2; // Match player Y if on ground, otherwise middle of screen
			enemies.push(slowEnemy);
			game.addChild(slowEnemy);
			// Apply slow stomping animation
			tween(slowEnemy, {
				rotation: -Math.PI * 2
			}, {
				duration: 4000,
				easing: tween.linear,
				onFinish: function onFinish() {
					// Continuously roll the enemy in the opposite direction but slower
					tween(slowEnemy, {
						rotation: slowEnemy.rotation - Math.PI * 2
					}, {
						duration: 4000,
						easing: tween.linear
					});
				}
			});
		} else {
			// 15% chance for falling enemy
			var fallingEnemy = new FallingEnemy();
			// Position falling enemy at the player's x position at the top of the screen
			fallingEnemy.x = player.x;
			fallingEnemy.y = -100; // Start above the screen
			enemies.push(fallingEnemy);
			game.addChild(fallingEnemy);
			// Apply spinning animation
			tween(fallingEnemy, {
				rotation: Math.PI * 4
			}, {
				duration: 2000,
				easing: tween.linear,
				onFinish: function onFinish() {
					// Continuously spin the enemy
					tween(fallingEnemy, {
						rotation: fallingEnemy.rotation + Math.PI * 4
					}, {
						duration: 2000,
						easing: tween.linear
					});
				}
			});
		}
		// Randomize the spawn interval for the next enemy
		enemySpawnInterval = Math.floor(Math.random() * 150) + 50;
		enemySpawnCounter = 0;
	}
	// Update enemies
	for (var j = enemies.length - 1; j >= 0; j--) {
		if (enemies[j]) {
			// Check if enemy exists before accessing
			enemies[j].update();
			if (enemies[j] && player.intersects(enemies[j]) && !player.invulnerable) {
				// Handle collision
				lives--;
				updateHeartDisplay();
				// Play aua sound when player is hit
				LK.getSound('aua').play();
				// Make player invulnerable temporarily
				player.invulnerable = true;
				player.alpha = 0.5;
				// Flash the screen red
				LK.effects.flashScreen(0xff0000, 500);
				// Remove the enemy
				enemies[j].destroy();
				enemies.splice(j, 1);
				// Check if player has run out of lives
				if (lives <= 0) {
					// Stop and restart music from the beginning before showing game over
					LK.stopMusic();
					LK.playMusic('epicMusic', {
						loop: true,
						fade: {
							start: 0,
							end: 0.8,
							duration: 2000
						}
					});
					LK.showGameOver();
				} else {
					// Make player vulnerable again after a short time
					LK.setTimeout(function () {
						player.invulnerable = false;
						player.alpha = 1;
					}, 1500);
				}
			} else if (enemies[j] && player.x > enemies[j].x && !enemies[j].passed) {
				enemies[j].passed = true;
				LK.setScore(LK.getScore() + 1);
				scoreText.setText(LK.getScore());
			}
		} // Close the enemy existence check
	}
};
// Handle player jump
game.down = function (x, y, obj) {
	player.jump();
};
// Import tween plugin for animations

===================================================================
--- original.js
+++ change.js
@@ -422,8 +422,51 @@
 		self.lastY = self.y;
 	};
 	return self;
 });
+// Define a class for small, fast enemies
+var SmallEnemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Scale down the enemy to make it smaller
+	enemyGraphics.scale.set(0.7, 0.7);
+	// Apply a yellow tint to make it visually distinct
+	enemyGraphics.tint = 0xFFFF00;
+	// Create a hitbox that matches the smaller size
+	self.hitArea = new Rectangle(-20, -20, 40, 40);
+	// Faster speed compared to normal enemy
+	self.speed = 12;
+	self.update = function () {
+		// Store last position for collision detection
+		if (self.lastX === undefined) {
+			self.lastX = self.x;
+			self.lastY = self.y;
+			self.lastWasIntersecting = false;
+		}
+		// Move enemy fast
+		self.x -= self.speed;
+		// Make the enemy roll by rotating it in the opposite direction
+		self.rotation -= 0.15;
+		// Remove if off screen
+		if (self.x < -50) {
+			// Remove from enemies array when reaching the left side
+			for (var i = 0; i < enemies.length; i++) {
+				if (enemies[i] === self) {
+					enemies.splice(i, 1);
+					break;
+				}
+			}
+			self.destroy();
+		}
+		// Update last positions
+		self.lastX = self.x;
+		self.lastY = self.y;
+	};
+	return self;
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -644,10 +687,10 @@
 		if (hasSlowEnemy && spawnChance < 0.4) {
 			// Redirect to either bird or falling enemy
 			spawnChance = 0.4 + spawnChance * 0.6; // Scale between 0.4 and 0.7
 		}
-		if (spawnChance < 0.35) {
-			// 35% chance for regular enemy (only if no slow enemy is present)
+		if (spawnChance < 0.25) {
+			// 25% chance for regular enemy (only if no slow enemy is present)
 			var enemy = new Enemy();
 			enemy.x = 2048; // Right edge of screen
 			// Set enemy Y position to match player when player is on ground
 			enemy.y = !player.isJumping ? player.y : 2732 / 2; // Match player Y if on ground, otherwise middle of screen
@@ -668,8 +711,32 @@
 						easing: tween.linear
 					});
 				}
 			});
+		} else if (spawnChance < 0.35) {
+			// 10% chance for small, fast enemy
+			var smallEnemy = new SmallEnemy();
+			smallEnemy.x = 2048; // Right edge of screen
+			// Set enemy Y position to match player when player is on ground
+			smallEnemy.y = !player.isJumping ? player.y : 2732 / 2; // Match player Y if on ground, otherwise middle of screen
+			enemies.push(smallEnemy);
+			game.addChild(smallEnemy);
+			// Apply faster rolling animation with tween
+			tween(smallEnemy, {
+				rotation: -Math.PI * 6
+			}, {
+				duration: 1500,
+				easing: tween.linear,
+				onFinish: function onFinish() {
+					// Continuously roll the enemy in the opposite direction
+					tween(smallEnemy, {
+						rotation: smallEnemy.rotation - Math.PI * 6
+					}, {
+						duration: 1500,
+						easing: tween.linear
+					});
+				}
+			});
 		} else if (spawnChance < 0.55) {
 			// 20% chance for bird
 			var bird = new Bird();
 			bird.x = 2048; // Right edge of screen