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

/**** 
* Classes
****/ 
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossNumber = Math.ceil(currentLevel / 10);
	var assetName = bossNumber === 1 ? 'boss' : 'boss' + bossNumber;
	var graphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.maxHealth = 20 + currentLevel / 10 * 5; // Increasing health with level
	self.health = self.maxHealth;
	self.lastShot = 0;
	self.shootCooldown = 180; // 3 seconds at 60fps
	self.direction = 1;
	self.defeated = false;
	self.update = function () {
		// Boss movement pattern
		self.x += self.speed * self.direction;
		if (self.x <= 200 || self.x >= 1848) {
			self.direction *= -1;
		}
		// Boss shooting pattern
		self.lastShot++;
		if (self.lastShot >= self.shootCooldown) {
			self.lastShot = 0;
			// Shoot multiple bullets in spread pattern
			for (var i = -1; i <= 1; i++) {
				var bullet = new EnemyBullet();
				bullet.x = self.x + i * 40;
				bullet.y = self.y + 75;
				enemyBullets.push(bullet);
				game.addChild(bullet);
			}
		}
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.health = 1;
	self.lastShot = 0;
	self.shootCooldown = 120; // 2 seconds at 60fps
	self.update = function () {
		self.y += self.speed;
		// Shoot at player occasionally
		self.lastShot++;
		if (self.lastShot >= self.shootCooldown && Math.random() < 0.02) {
			self.lastShot = 0;
			var bullet = new EnemyBullet();
			bullet.x = self.x;
			bullet.y = self.y + 30;
			enemyBullets.push(bullet);
			game.addChild(bullet);
		}
	};
	return self;
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 3;
	self.maxHealth = 3;
	self.lastShot = 0;
	self.invulnerable = false;
	self.invulnerableTimer = 0;
	self.shoot = function () {
		if (self.lastShot > 0) return;
		self.lastShot = getShootCooldown();
		LK.getSound('shoot').play();
		if (currentLevel >= 80) {
			// Rapid fire - single bullet but faster
			var bullet = new PlayerBullet();
			bullet.x = self.x;
			bullet.y = self.y - 40;
			playerBullets.push(bullet);
			game.addChild(bullet);
		} else if (currentLevel >= 50) {
			// Triple fire
			for (var i = -1; i <= 1; i++) {
				var bullet = new PlayerBullet();
				bullet.x = self.x + i * 25;
				bullet.y = self.y - 40;
				playerBullets.push(bullet);
				game.addChild(bullet);
			}
		} else if (currentLevel >= 20) {
			// Dual fire
			for (var i = -1; i <= 1; i += 2) {
				var bullet = new PlayerBullet();
				bullet.x = self.x + i * 20;
				bullet.y = self.y - 40;
				playerBullets.push(bullet);
				game.addChild(bullet);
			}
		} else {
			// Single fire
			var bullet = new PlayerBullet();
			bullet.x = self.x;
			bullet.y = self.y - 40;
			playerBullets.push(bullet);
			game.addChild(bullet);
		}
	};
	self.takeDamage = function () {
		if (self.invulnerable) return;
		playerLives--;
		storage.playerLives = playerLives;
		self.invulnerable = true;
		self.invulnerableTimer = 120; // 2 seconds invulnerability
		LK.getSound('playerHit').play();
		LK.effects.flashObject(self, 0xff0000, 500);
		if (playerLives <= 0) {
			LK.showGameOver();
		} else {
			// Respawn at starting position
			self.x = 1024;
			self.y = 2400;
			// Don't reset score at checkpoint levels (every 10 levels)
			if (currentLevel % 10 !== 0) {
				LK.setScore(0);
			}
		}
	};
	self.update = function () {
		if (self.lastShot > 0) {
			self.lastShot--;
		}
		if (self.invulnerable) {
			self.invulnerableTimer--;
			if (self.invulnerableTimer <= 0) {
				self.invulnerable = false;
			}
		}
	};
	return self;
});
var PlayerBullet = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('playerBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -12;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game state variables
var currentLevel = storage.currentLevel || 1;
var playerLives = storage.playerLives || 3;
var playerBullets = [];
var enemyBullets = [];
var enemies = [];
var currentBoss = null;
var bossHealthBar = null;
var bossHealthBarBg = null;
var bossHealthTxt = null;
var bossHealthTextBg = null;
var isBossLevel = false;
var enemySpawnTimer = 0;
var levelCompleteTimer = 0;
var enemiesKilled = 0;
var enemiesNeededForLevel = 10;
// Create player
var player = game.addChild(new Player());
player.x = 1024;
player.y = 2400;
// Create UI elements
var livesTxt = new Text2('Lives: 3', {
	size: 40,
	fill: 0xFFFFFF
});
livesTxt.anchor.set(0, 0);
livesTxt.x = 150;
livesTxt.y = 50;
LK.gui.topLeft.addChild(livesTxt);
var levelTxt = new Text2('Level: 1', {
	size: 40,
	fill: 0xFFFFFF
});
levelTxt.anchor.set(0.5, 0);
levelTxt.x = 0;
levelTxt.y = 50;
LK.gui.top.addChild(levelTxt);
var scoreTxt = new Text2('Score: 0', {
	size: 40,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(1, 0);
scoreTxt.x = -20;
scoreTxt.y = 50;
LK.gui.topRight.addChild(scoreTxt);
var pointsNeededTxt = new Text2('Next Level: 10', {
	size: 35,
	fill: 0xFFFF00
});
pointsNeededTxt.anchor.set(0.5, 0);
pointsNeededTxt.x = 0;
pointsNeededTxt.y = 90;
LK.gui.top.addChild(pointsNeededTxt);
var weaponTxt = new Text2('Weapon: Single', {
	size: 35,
	fill: 0xFFFF00
});
weaponTxt.anchor.set(0.5, 0);
weaponTxt.x = 0;
weaponTxt.y = 150;
LK.gui.top.addChild(weaponTxt);
// Helper functions
function getShootCooldown() {
	if (currentLevel >= 80) return 8; // Rapid fire
	if (currentLevel >= 50) return 15; // Triple fire
	if (currentLevel >= 20) return 12; // Dual fire
	return 15; // Single fire
}
function updateWeaponDisplay() {
	if (currentLevel >= 80) {
		weaponTxt.setText('Weapon: Rapid Fire');
	} else if (currentLevel >= 50) {
		weaponTxt.setText('Weapon: Triple Fire');
	} else if (currentLevel >= 20) {
		weaponTxt.setText('Weapon: Dual Fire');
	} else {
		weaponTxt.setText('Weapon: Single Fire');
	}
}
function updatePointsNeededDisplay() {
	if (isBossLevel) {
		pointsNeededTxt.setText('BOSS LEVEL');
	} else {
		var pointsNeeded = enemiesNeededForLevel - enemiesKilled;
		pointsNeededTxt.setText('Enemies Left: ' + pointsNeeded);
	}
}
function isBossLevelCheck(level) {
	return level % 10 === 0;
}
function spawnBoss() {
	if (currentBoss) return;
	currentBoss = new Boss();
	currentBoss.x = 1024;
	currentBoss.y = 400;
	game.addChild(currentBoss);
	// Create boss health bar
	bossHealthBarBg = game.addChild(LK.getAsset('healthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	bossHealthBarBg.x = currentBoss.x;
	bossHealthBarBg.y = currentBoss.y - 150;
	bossHealthBar = game.addChild(LK.getAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	bossHealthBar.x = currentBoss.x;
	bossHealthBar.y = currentBoss.y - 150;
	// Create green background box for boss health text
	var bossHealthTextBg = game.addChild(LK.getAsset('vo', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	bossHealthTextBg.x = currentBoss.x;
	bossHealthTextBg.y = currentBoss.y - 150;
	bossHealthTextBg.scaleX = 0.8;
	bossHealthTextBg.scaleY = 0.4;
	// Create boss health text
	bossHealthTxt = new Text2(currentBoss.health + '/' + currentBoss.maxHealth, {
		size: 50,
		fill: 0xFFFFFF
	});
	bossHealthTxt.anchor.set(0.5, 0.5);
	bossHealthTxt.x = currentBoss.x;
	bossHealthTxt.y = currentBoss.y - 150;
	game.addChild(bossHealthTxt);
}
function spawnEnemy() {
	if (isBossLevel) return;
	var enemy = new Enemy();
	enemy.x = Math.random() * 1648 + 200;
	enemy.y = -50;
	enemies.push(enemy);
	game.addChild(enemy);
}
function nextLevel() {
	currentLevel++;
	storage.currentLevel = currentLevel;
	// Check if we've reached the maximum level
	if (currentLevel > 100) {
		LK.showYouWin();
		return;
	}
	levelTxt.setText('Level: ' + currentLevel);
	isBossLevel = isBossLevelCheck(currentLevel);
	enemiesKilled = 0;
	levelCompleteTimer = 0;
	updateWeaponDisplay();
	updatePointsNeededDisplay();
	// Award life at checkpoints (every 10 levels)
	if (currentLevel % 10 === 0) {
		playerLives++;
		storage.playerLives = playerLives;
		LK.effects.flashScreen(0x00ff00, 500); // Green flash for life gained
	}
	if (isBossLevel) {
		spawnBoss();
	}
}
// Input handling
var dragActive = false;
game.down = function (x, y, obj) {
	dragActive = true;
	var targetX = Math.max(40, Math.min(2008, x));
	var targetY = Math.max(200, Math.min(2600, y));
	player.x = targetX;
	player.y = targetY;
	player.shoot();
};
game.move = function (x, y, obj) {
	// Direct mouse movement - ship follows mouse cursor immediately
	var targetX = Math.max(40, Math.min(2008, x));
	var targetY = Math.max(200, Math.min(2600, y));
	player.x = targetX;
	player.y = targetY;
};
game.up = function (x, y, obj) {
	dragActive = false;
};
// Initialize level
updateWeaponDisplay();
updatePointsNeededDisplay();
levelTxt.setText('Level: ' + currentLevel);
isBossLevel = isBossLevelCheck(currentLevel);
if (isBossLevel) {
	spawnBoss();
}
// Play background music
LK.playMusic('bgmusic');
// Main game loop
game.update = function () {
	// Update player
	player.update();
	// Update UI
	scoreTxt.setText('Score: ' + LK.getScore());
	livesTxt.setText('Lives: ' + playerLives);
	updatePointsNeededDisplay();
	// Auto-shoot continuously
	player.shoot();
	// Spawn enemies for non-boss levels
	if (!isBossLevel) {
		enemySpawnTimer++;
		if (enemySpawnTimer >= 90) {
			// Spawn every 1.5 seconds
			enemySpawnTimer = 0;
			spawnEnemy();
		}
	}
	// Update player bullets
	for (var i = playerBullets.length - 1; i >= 0; i--) {
		var bullet = playerBullets[i];
		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
		// Remove bullets that go off screen
		if (bullet.lastY >= -10 && bullet.y < -10) {
			bullet.destroy();
			playerBullets.splice(i, 1);
			continue;
		}
		// Check collision with enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				LK.getSound('enemyHit').play();
				LK.setScore(LK.getScore() + 10);
				bullet.destroy();
				playerBullets.splice(i, 1);
				enemy.destroy();
				enemies.splice(j, 1);
				enemiesKilled++;
				break;
			}
		}
		// Check collision with boss
		if (currentBoss && bullet.intersects(currentBoss)) {
			LK.getSound('bossHit').play();
			LK.setScore(LK.getScore() + 50);
			bullet.destroy();
			playerBullets.splice(i, 1);
			currentBoss.health--;
			// Update boss health bar
			if (bossHealthBar) {
				var healthPercent = currentBoss.health / currentBoss.maxHealth;
				bossHealthBar.scaleX = healthPercent;
			}
			// Update boss health text
			if (bossHealthTxt) {
				bossHealthTxt.setText(currentBoss.health + '/' + currentBoss.maxHealth);
			}
			if (currentBoss.health <= 0) {
				currentBoss.defeated = true;
				currentBoss.destroy();
				currentBoss = null;
				if (bossHealthBar) {
					bossHealthBar.destroy();
					bossHealthBar = null;
				}
				if (bossHealthBarBg) {
					bossHealthBarBg.destroy();
					bossHealthBarBg = null;
				}
				if (bossHealthTxt) {
					bossHealthTxt.destroy();
					bossHealthTxt = null;
				}
				if (bossHealthTextBg) {
					bossHealthTextBg.destroy();
					bossHealthTextBg = null;
				}
				LK.setScore(LK.getScore() + 500);
				levelCompleteTimer = 180; // 3 seconds delay before next level
			}
			break;
		}
		if (bullet.parent) {
			bullet.lastY = bullet.y;
		}
	}
	// Update enemy bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var bullet = enemyBullets[i];
		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
		// Remove bullets that go off screen
		if (bullet.lastY <= 2742 && bullet.y > 2742) {
			bullet.destroy();
			enemyBullets.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (bullet.intersects(player)) {
			player.takeDamage();
			bullet.destroy();
			enemyBullets.splice(i, 1);
			continue;
		}
		if (bullet.parent) {
			bullet.lastY = bullet.y;
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (enemy.lastY === undefined) enemy.lastY = enemy.y;
		// Remove enemies that go off screen
		if (enemy.lastY <= 2742 && enemy.y > 2742) {
			enemy.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (enemy.intersects(player)) {
			player.takeDamage();
			enemy.destroy();
			enemies.splice(i, 1);
			continue;
		}
		if (enemy.parent) {
			enemy.lastY = enemy.y;
		}
	}
	// Update boss
	if (currentBoss && currentBoss.parent) {
		currentBoss.update();
		// Update boss health bar position
		if (bossHealthBar) {
			bossHealthBar.x = currentBoss.x;
			bossHealthBar.y = currentBoss.y - 150;
		}
		if (bossHealthBarBg) {
			bossHealthBarBg.x = currentBoss.x;
			bossHealthBarBg.y = currentBoss.y - 150;
		}
		if (bossHealthTxt) {
			bossHealthTxt.x = currentBoss.x;
			bossHealthTxt.y = currentBoss.y - 150;
		}
		if (bossHealthTextBg) {
			bossHealthTextBg.x = currentBoss.x;
			bossHealthTextBg.y = currentBoss.y - 150;
		}
		// Check collision with player
		if (currentBoss.intersects(player)) {
			player.takeDamage();
		}
	}
	// Level progression
	if (!isBossLevel && enemiesKilled >= enemiesNeededForLevel) {
		levelCompleteTimer++;
		if (levelCompleteTimer >= 180) {
			// 3 seconds delay
			nextLevel();
		}
	} else if (isBossLevel && currentBoss && currentBoss.defeated) {
		if (levelCompleteTimer > 0) {
			levelCompleteTimer--;
			if (levelCompleteTimer <= 0) {
				nextLevel();
			}
		}
	} else if (isBossLevel && !currentBoss && levelCompleteTimer > 0) {
		levelCompleteTimer--;
		if (levelCompleteTimer <= 0) {
			nextLevel();
		}
	} else if (isBossLevel && !currentBoss) {
		// Boss level but no boss exists, spawn one
		spawnBoss();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -195,8 +195,9 @@
 var currentBoss = null;
 var bossHealthBar = null;
 var bossHealthBarBg = null;
 var bossHealthTxt = null;
+var bossHealthTextBg = null;
 var isBossLevel = false;
 var enemySpawnTimer = 0;
 var levelCompleteTimer = 0;
 var enemiesKilled = 0;
@@ -293,8 +294,17 @@
 		anchorY: 0.5
 	}));
 	bossHealthBar.x = currentBoss.x;
 	bossHealthBar.y = currentBoss.y - 150;
+	// Create green background box for boss health text
+	var bossHealthTextBg = game.addChild(LK.getAsset('vo', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	}));
+	bossHealthTextBg.x = currentBoss.x;
+	bossHealthTextBg.y = currentBoss.y - 150;
+	bossHealthTextBg.scaleX = 0.8;
+	bossHealthTextBg.scaleY = 0.4;
 	// Create boss health text
 	bossHealthTxt = new Text2(currentBoss.health + '/' + currentBoss.maxHealth, {
 		size: 50,
 		fill: 0xFFFFFF
@@ -440,8 +450,12 @@
 				if (bossHealthTxt) {
 					bossHealthTxt.destroy();
 					bossHealthTxt = null;
 				}
+				if (bossHealthTextBg) {
+					bossHealthTextBg.destroy();
+					bossHealthTextBg = null;
+				}
 				LK.setScore(LK.getScore() + 500);
 				levelCompleteTimer = 180; // 3 seconds delay before next level
 			}
 			break;
@@ -507,8 +521,12 @@
 		if (bossHealthTxt) {
 			bossHealthTxt.x = currentBoss.x;
 			bossHealthTxt.y = currentBoss.y - 150;
 		}
+		if (bossHealthTextBg) {
+			bossHealthTextBg.x = currentBoss.x;
+			bossHealthTextBg.y = currentBoss.y - 150;
+		}
 		// Check collision with player
 		if (currentBoss.intersects(player)) {
 			player.takeDamage();
 		}