/**** 
* Classes
****/
// Define the Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 5; // Player must be hit 5 times before dying
	self.shootInterval = 27; // 0.45 seconds at 60FPS
	self.lastShotTick = 0;
	self.update = function () {
		if (LK.ticks - self.lastShotTick >= self.shootInterval) {
			this.shoot();
			self.lastShotTick = LK.ticks;
		}
		// Hero update logic
	};
	self.shoot = function () {
		var bullet = new HeroBullet();
		bullet.x = this.x;
		bullet.y = this.y - 50; // Adjust bullet start position
		heroBullets.push(bullet);
		game.addChild(bullet);
	};
});
// Define the Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initialize health for enemy to take 2 hits
	self.health = 2;
	// Initialize direction and speed for structured movement
	self.directionX = Math.random() < 0.5 ? -1 : 1;
	self.directionY = Math.random() < 0.5 ? -1 : 1;
	self.speed = 5;
	self.update = function () {
		self.x += self.directionX * self.speed;
		self.y += self.directionY * self.speed;
		// Reverse direction when hitting the screen boundaries
		if (self.x <= 100 || self.x >= 1948) {
			self.directionX *= -1;
		}
		if (self.y <= 100 || self.y >= 2732 / 2 - 100) {
			self.directionY *= -1;
		}
	};
});
// Define the HeroBullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -10;
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the EnemyBullet class
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the BossEnemy class
var BossEnemy = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('bossEnemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initialize boss-specific properties
	self.health = 50; // Boss has more health
	self.speed = 2; // Boss moves slower
	self.shootInterval = 21; // Boss shoots every 0.35 seconds at 60FPS
	self.lastShotTick = 0; // Track the last shot tick
	self.update = function () {
		// Boss update logic with structured movement
		self.x += self.directionX * self.speed;
		self.y += self.directionY * self.speed;
		// Reverse direction when hitting the screen boundaries
		if (self.x <= 100 || self.x >= 1948) {
			self.directionX *= -1;
		}
		if (self.y <= 100 || self.y >= 2732 / 2 - 100) {
			self.directionY *= -1;
		}
		// Boss specific logic for shooting
		self.shoot();
	};
	self.shoot = function () {
		if (LK.ticks - self.lastShotTick >= self.shootInterval) {
			var bullet = new EnemyBullet();
			bullet.x = self.x;
			bullet.y = self.y + 50; // Adjust bullet start position
			enemyBullets.push(bullet);
			game.addChild(bullet);
			self.lastShotTick = LK.ticks;
		}
	};
});
var WaveManager = Container.expand(function () {
	var self = Container.call(this);
	self.waveCount = -1;
	self.enemiesPerWave = self.waveCount === 0 ? 6 : 5;
	self.enemies = [];
	self.createWave = function () {
		if (self.waveCount === 4) {
			// Wave 5: Spawn a BossEnemy instead of regular enemies
			var bossEnemy = game.addChild(new BossEnemy());
			bossEnemy.x = 2048 / 2; // Start in the middle of the screen
			bossEnemy.y = 2732 / 4; // Start in the upper part of the screen
			self.enemies.push(bossEnemy);
		} else {
			// Other waves: Spawn regular enemies
			for (var i = 0; i < self.enemiesPerWave; i++) {
				var enemy = game.addChild(new Enemy());
				enemy.x = Math.random() * (2048 - 100) + 50;
				enemy.y = Math.random() * (2732 / 2 - 200) + 100;
				self.enemies.push(enemy);
			}
		}
		self.waveCount++;
		waveCounterTxt.setText('Wave: ' + (self.waveCount + 1));
	};
});
// Define the Block class
var Block = Container.expand(function () {
	var self = Container.call(this);
	var blockGraphics = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});
var PlayerHealthBar = Container.expand(function (maxHealth) {
	var self = Container.call(this);
	var backgroundBar = self.attachAsset('block', {
		width: 204,
		height: 24,
		color: 0x000000,
		anchorX: 0.5,
		anchorY: 0.5
	});
	var healthBar = self.attachAsset('block', {
		width: 200,
		height: 20,
		color: 0x00ff00,
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.updateHealth = function (newHealth) {
		var healthRatio = newHealth / maxHealth;
		healthBar.width = 200 * healthRatio;
		healthBar.x = -(200 - healthBar.width) / 2; // Keep the health bar centered
		if (healthRatio < 0.3) {
			healthBar.color = 0xff0000; // Red color for critical health
		} else if (healthRatio < 0.6) {
			healthBar.color = 0xffff00; // Yellow color for medium health
		} else {
			healthBar.color = 0x00ff00; // Green color for high health
		}
	};
	self.updateHealth(maxHealth);
});

/**** 
* Initialize Game
****/
var game = new LK.Game({
	backgroundColor: 0x000000 // Init game with black background
});

/**** 
* Game Code
****/
var playerHealthBar = new PlayerHealthBar(hero.health);
playerHealthBar.x = 2048 / 2; // Center the health bar horizontally
playerHealthBar.y = 50; // Position the health bar at the top
LK.gui.top.addChild(playerHealthBar);
var waveManager = game.addChild(new WaveManager());
var waveCounterTxt = new Text2('Wave: 0', {
	size: 100,
	fill: "#ffffff"
});
LK.gui.top.addChild(waveCounterTxt);
waveManager.createWave();
// Define assets for the game
// Initialize game elements
var hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 - 150;
var enemies = [];
var heroBullets = [];
var enemyBullets = [];
var blocks = [];
// Game tick event
LK.on('tick', function () {
	// Update hero
	hero.update();
	// Update enemies
	for (var i = 0; i < waveManager.enemies.length; i++) {
		waveManager.enemies[i].update();
	}
	// Move hero bullets and check for collisions with enemies
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var bullet = heroBullets[i];
		bullet.move();
		// Check for bullet collision with enemies or off-screen
		for (var j = waveManager.enemies.length - 1; j >= 0; j--) {
			if (bullet.intersects(waveManager.enemies[j])) {
				// Decrease enemy health and check if it should be destroyed
				waveManager.enemies[j].health--;
				LK.effects.flashObject(waveManager.enemies[j], 0xff0000, 500);
				if (waveManager.enemies[j].health <= 0) {
					waveManager.enemies[j].destroy();
					waveManager.enemies.splice(j, 1);
				}
				bullet.destroy();
				heroBullets.splice(i, 1);
				break;
			}
		}
		if (bullet.y < 0) {
			bullet.destroy();
			heroBullets.splice(i, 1);
		}
	}
	// Check if all enemies are defeated to create a new wave
	if (waveManager.enemies.length === 0) {
		waveManager.createWave();
	}
	// Enemy shooting logic
	if (LK.ticks % 120 == 0) {
		waveManager.enemies.forEach(function (enemy) {
			var bullet = new EnemyBullet();
			bullet.x = enemy.x;
			bullet.y = enemy.y;
			enemyBullets.push(bullet);
			game.addChild(bullet);
		});
	}
	// Move enemy bullets and check for collisions
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var bullet = enemyBullets[i];
		bullet.move();
		// Check for bullet collision with hero or off-screen
		if (bullet.intersects(hero)) {
			hero.health -= 1; // Decrease hero's health by one
			playerHealthBar.updateHealth(hero.health); // Update the player's health bar
			LK.effects.flashObject(hero, 0xff0000, 500);
			bullet.destroy();
			enemyBullets.splice(i, 1);
			if (hero.health <= 0) {
				// Game over logic
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
			}
		}
		if (bullet.y > 2732) {
			bullet.destroy();
			enemyBullets.splice(i, 1);
		}
	}
});
// Touch event handling for hero movement and shooting
game.on('down', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	hero.x = pos.x;
});
// Create a hero bullet when the hero shoots
Hero.prototype.shoot = function () {
	var bullet = new HeroBullet();
	bullet.x = this.x;
	bullet.y = this.y - 50; // Adjust bullet start position
	heroBullets.push(bullet);
	game.addChild(bullet);
};
// Update the hero's position based on touch movement
game.on('move', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	hero.x = pos.x;
});
// Ensure the hero stays within the game boundaries
Hero.prototype.update = function () {
	this.x = Math.max(50, Math.min(this.x, 2048 - 50));
};

===================================================================
--- original.js
+++ change.js
@@ -144,32 +144,37 @@
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 });
-var HealthBar = Container.expand(function (maxHealth, currentHealth) {
+var PlayerHealthBar = Container.expand(function (maxHealth) {
 	var self = Container.call(this);
 	var backgroundBar = self.attachAsset('block', {
 		width: 204,
 		height: 24,
-		color: 0x000000
+		color: 0x000000,
+		anchorX: 0.5,
+		anchorY: 0.5
 	});
 	var healthBar = self.attachAsset('block', {
 		width: 200,
 		height: 20,
-		color: 0x00ff00
+		color: 0x00ff00,
+		anchorX: 0.5,
+		anchorY: 0.5
 	});
 	self.updateHealth = function (newHealth) {
 		var healthRatio = newHealth / maxHealth;
 		healthBar.width = 200 * healthRatio;
+		healthBar.x = -(200 - healthBar.width) / 2; // Keep the health bar centered
 		if (healthRatio < 0.3) {
 			healthBar.color = 0xff0000; // Red color for critical health
 		} else if (healthRatio < 0.6) {
 			healthBar.color = 0xffff00; // Yellow color for medium health
 		} else {
 			healthBar.color = 0x00ff00; // Green color for high health
 		}
 	};
-	self.updateHealth(currentHealth);
+	self.updateHealth(maxHealth);
 });
 
 /**** 
 * Initialize Game
@@ -180,8 +185,12 @@
 
 /**** 
 * Game Code
 ****/
+var playerHealthBar = new PlayerHealthBar(hero.health);
+playerHealthBar.x = 2048 / 2; // Center the health bar horizontally
+playerHealthBar.y = 50; // Position the health bar at the top
+LK.gui.top.addChild(playerHealthBar);
 var waveManager = game.addChild(new WaveManager());
 var waveCounterTxt = new Text2('Wave: 0', {
 	size: 100,
 	fill: "#ffffff"
@@ -249,9 +258,9 @@
 		bullet.move();
 		// Check for bullet collision with hero or off-screen
 		if (bullet.intersects(hero)) {
 			hero.health -= 1; // Decrease hero's health by one
-			heroHealthBar.updateHealth(hero.health); // Update the health bar
+			playerHealthBar.updateHealth(hero.health); // Update the player's health bar
 			LK.effects.flashObject(hero, 0xff0000, 500);
 			bullet.destroy();
 			enemyBullets.splice(i, 1);
 			if (hero.health <= 0) {