/**** 
* Classes
****/ 
// 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
	});
	self.speed = 5;
	self.update = function () {
		self.x -= self.speed;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
//<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
	});
	self.speed = 5;
	self.jumpHeight = 40;
	self.isJumping = false;
	self.velocityY = 0;
	self.update = function () {
		if (self.isJumping) {
			self.y += self.velocityY;
			self.velocityY += 0.7; // Decreased gravity effect by 30%
			if (self.y >= 2732 / 2) {
				// Ground level
				self.y = 2732 / 2;
				self.isJumping = false;
				self.velocityY = 0;
			}
		}
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
			self.velocityY = -self.jumpHeight;
		}
	};
});
// Define a class for star bullets
var Star = Container.expand(function () {
	var self = Container.call(this);
	// Create a yellow star shape using the built-in shape feature
	var starGraphics = self.attachAsset('star', {
		width: 50,
		height: 50,
		color: 0xffff00,
		shape: 'box',
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	// Store the last position for collision detection
	self.lastY = self.y;
	self.lastX = self.x;
	self.update = function () {
		// Store last position before update
		self.lastY = self.y;
		self.lastX = self.x;
		// Move the star forward
		self.x += self.speed;
		// Remove if it goes off-screen
		if (self.x > 2048 + 50) {
			self.destroy();
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background.x = 0;
background.y = 0;
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 / 2;
player.lives = 3;
player.invulnerable = false;
player.invulnerableTime = 0;
// Initialize enemies
var enemies = [];
var enemySpawnInterval = 100;
var enemySpawnCounter = 0;
// Create life display
var hearts = [];
var heartsContainer = new Container();
LK.gui.topRight.addChild(heartsContainer);
heartsContainer.x = -200; // Offset from right edge
heartsContainer.y = 50; // Offset from top edge
// Create heart icons
for (var i = 0; i < player.lives; i++) {
	var heart = heartsContainer.addChild(LK.getAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	heart.x = -i * 60; // Position hearts horizontally with spacing
	hearts.push(heart);
}
// Create a new Text2 object to display the score
var scoreText = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
// 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;
// Create instruction text
var instructionText = new Text2('Tap to JUMP\nHold to SHOOT', {
	size: 80,
	fill: 0xFFFFFF,
	align: 'center'
});
instructionText.anchor.set(0.5, 0);
LK.gui.center.addChild(instructionText);
instructionText.y = 300;
// Create a timeout to hide instructions after 5 seconds
LK.setTimeout(function () {
	// Fade out instructions
	var alpha = 1;
	var fadeInterval = LK.setInterval(function () {
		alpha -= 0.1;
		instructionText.alpha = alpha;
		if (alpha <= 0) {
			LK.clearInterval(fadeInterval);
			instructionText.visible = false;
		}
	}, 100);
}, 5000);
// Handle game updates
// Array to store bullets
var stars = [];
var shootTimer = 0;
game.update = function () {
	player.update();
	// Handle player invulnerability
	if (player.invulnerable) {
		// Make player flash to indicate invulnerability
		player.alpha = Math.sin(Date.now() * 0.01) * 0.5 + 0.5;
		// End invulnerability after 2 seconds
		if (Date.now() - player.invulnerableTime > 2000) {
			player.invulnerable = false;
			player.alpha = 1;
		}
	}
	// Removed auto-shooting to only allow double tap shooting
	// Update stars
	for (var i = stars.length - 1; i >= 0; i--) {
		stars[i].update();
		// Remove stars that are destroyed
		if (!stars[i].parent) {
			stars.splice(i, 1);
			continue;
		}
		// Check for star-enemy collisions
		for (var j = enemies.length - 1; j >= 0; j--) {
			if (stars[i] && enemies[j] && stars[i].intersects(enemies[j])) {
				// Remove the enemy and the star
				enemies[j].destroy();
				enemies.splice(j, 1);
				stars[i].destroy();
				stars.splice(i, 1);
				// Update score
				LK.setScore(LK.getScore() + 1);
				scoreText.setText(LK.getScore());
				break;
			}
		}
	}
	// Spawn enemies
	enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		var enemy = new Enemy();
		enemy.x = 2048;
		enemy.y = 2732 / 2;
		enemies.push(enemy);
		game.addChild(enemy);
		// 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--) {
		enemies[j].update();
		if (player.intersects(enemies[j]) && !player.invulnerable) {
			// Player was hit, lose a life
			player.lives--;
			// Play hit sound
			LK.getSound('hit').play();
			// Flash screen to indicate damage
			LK.effects.flashScreen(0xff0000, 500);
			// Make player temporarily invulnerable
			player.invulnerable = true;
			player.invulnerableTime = Date.now();
			// Update hearts display - remove one heart
			if (hearts.length > 0) {
				var heart = hearts.pop();
				heart.destroy();
			}
			// Check if player is out of lives
			if (player.lives <= 0) {
				LK.showGameOver();
			} else {
				// Destroy the enemy that hit the player
				enemies[j].destroy();
				enemies.splice(j, 1);
			}
		} else if (player.x > enemies[j].x && !enemies[j].passed) {
			enemies[j].passed = true;
			LK.setScore(LK.getScore() + 1);
			scoreText.setText(LK.getScore());
		}
	}
};
// Handle player interaction
var dragNode = null;
// Function to handle movement and shooting while holding
function handleMove(x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
		// Keep the player at the same vertical position if not jumping
		if (!player.isJumping) {
			dragNode.y = 2732 / 2;
		}
		// If holding for more than 300ms, continuously shoot
		if (shootTimer > 0 && Date.now() - shootTimer > 300) {
			// Only shoot every 20 ticks to control fire rate
			if (LK.ticks % 20 === 0) {
				var star = new Star();
				star.x = player.x + 100;
				star.y = player.y;
				stars.push(star);
				game.addChild(star);
				// Play shooting sound
				LK.getSound('shoot').play();
			}
		}
	}
}
// Variable for shoot timer when holding tap
var shootTimer = 0;
// Start tracking player movement on touch down and shoot on hold
game.down = function (x, y, obj) {
	// Always make the player jump on tap
	player.jump();
	// Start shooting timer
	shootTimer = Date.now();
	// Handle regular movement
	dragNode = player;
	handleMove(x, y, obj);
};
// Update player position during movement
game.move = handleMove;
// Stop tracking player movement and shooting on touch up
game.up = function (x, y, obj) {
	dragNode = null;
	shootTimer = 0; // Reset shoot timer
};

===================================================================
--- original.js
+++ change.js
@@ -96,12 +96,30 @@
 // Initialize player
 var player = game.addChild(new Player());
 player.x = 2048 / 2;
 player.y = 2732 / 2;
+player.lives = 3;
+player.invulnerable = false;
+player.invulnerableTime = 0;
 // Initialize enemies
 var enemies = [];
 var enemySpawnInterval = 100;
 var enemySpawnCounter = 0;
+// Create life display
+var hearts = [];
+var heartsContainer = new Container();
+LK.gui.topRight.addChild(heartsContainer);
+heartsContainer.x = -200; // Offset from right edge
+heartsContainer.y = 50; // Offset from top edge
+// Create heart icons
+for (var i = 0; i < player.lives; i++) {
+	var heart = heartsContainer.addChild(LK.getAsset('heart', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	}));
+	heart.x = -i * 60; // Position hearts horizontally with spacing
+	hearts.push(heart);
+}
 // Create a new Text2 object to display the score
 var scoreText = new Text2('0', {
 	size: 100,
 	fill: 0xFFFFFF
@@ -137,8 +155,18 @@
 var stars = [];
 var shootTimer = 0;
 game.update = function () {
 	player.update();
+	// Handle player invulnerability
+	if (player.invulnerable) {
+		// Make player flash to indicate invulnerability
+		player.alpha = Math.sin(Date.now() * 0.01) * 0.5 + 0.5;
+		// End invulnerability after 2 seconds
+		if (Date.now() - player.invulnerableTime > 2000) {
+			player.invulnerable = false;
+			player.alpha = 1;
+		}
+	}
 	// Removed auto-shooting to only allow double tap shooting
 	// Update stars
 	for (var i = stars.length - 1; i >= 0; i--) {
 		stars[i].update();
@@ -176,11 +204,31 @@
 	}
 	// Update enemies
 	for (var j = enemies.length - 1; j >= 0; j--) {
 		enemies[j].update();
-		if (player.intersects(enemies[j])) {
-			LK.effects.flashScreen(0xff0000, 1000);
-			LK.showGameOver();
+		if (player.intersects(enemies[j]) && !player.invulnerable) {
+			// Player was hit, lose a life
+			player.lives--;
+			// Play hit sound
+			LK.getSound('hit').play();
+			// Flash screen to indicate damage
+			LK.effects.flashScreen(0xff0000, 500);
+			// Make player temporarily invulnerable
+			player.invulnerable = true;
+			player.invulnerableTime = Date.now();
+			// Update hearts display - remove one heart
+			if (hearts.length > 0) {
+				var heart = hearts.pop();
+				heart.destroy();
+			}
+			// Check if player is out of lives
+			if (player.lives <= 0) {
+				LK.showGameOver();
+			} else {
+				// Destroy the enemy that hit the player
+				enemies[j].destroy();
+				enemies.splice(j, 1);
+			}
 		} else if (player.x > enemies[j].x && !enemies[j].passed) {
 			enemies[j].passed = true;
 			LK.setScore(LK.getScore() + 1);
 			scoreText.setText(LK.getScore());