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

/**** 
* Classes
****/ 
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 3,
		scaleY: 3
	});
	bossGraphics.tint = 0x800080; // Purple tint for boss
	self.maxHealth = 20;
	self.health = self.maxHealth;
	self.speed = 1;
	self.direction = 1;
	self.shootTimer = 0;
	self.shootInterval = 30; // Shoot every 0.5 seconds
	self.specialAttackTimer = 0;
	self.specialAttackInterval = 180; // Special attack every 3 seconds
	self.points = 100;
	self.phase = 1;
	self.movementTimer = 0;
	self.lastShoot = 0;
	self.shotCount = 0; // Track number of shots fired
	self.update = function () {
		self.movementTimer++;
		// Movement pattern
		if (self.movementTimer < 120) {
			// Move horizontally
			self.x += self.direction * self.speed;
			if (self.x <= 150 || self.x >= 1900) {
				self.direction *= -1;
			}
		} else if (self.movementTimer < 180) {
			// Move down slightly
			self.y += 0.5;
		} else {
			// Reset movement cycle
			self.movementTimer = 0;
		}
		// Regular shooting
		self.shootTimer++;
		if (self.shootTimer >= self.shootInterval) {
			self.shootTimer = 0;
			self.shootAtPlayer();
		}
		// Special attack
		self.specialAttackTimer++;
		if (self.specialAttackTimer >= self.specialAttackInterval) {
			self.specialAttackTimer = 0;
			self.specialAttack();
		}
	};
	self.shootAtPlayer = function () {
		// Create single bullet aimed at player
		var bullet = new EnemyBullet();
		bullet.x = self.x;
		bullet.y = self.y + 100;
		// Calculate direction towards player
		var deltaX = player.x - bullet.x;
		var deltaY = player.y - bullet.y;
		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
		bullet.directionX = deltaX / distance * bullet.speed;
		bullet.directionY = deltaY / distance * bullet.speed;
		enemyBullets.push(bullet);
		game.addChild(bullet);
		// Increment shot count and check for death after 55 shots
		self.shotCount++;
		if (self.shotCount >= 55) {
			// Boss dies after 55 shots
			LK.setScore(LK.getScore() + 500);
			scoreText.setText('Score: ' + LK.getScore());
			LK.getSound('bossDefeat').play();
			self.destroy();
			currentBoss = null;
			isBossFight = false;
		}
	};
	self.specialAttack = function () {
		// Circular pattern of bullets
		for (var i = 0; i < 4; i++) {
			var bullet = new EnemyBullet();
			bullet.x = self.x;
			bullet.y = self.y + 50;
			var angle = i / 4 * Math.PI * 2;
			bullet.directionX = Math.cos(angle) * bullet.speed;
			bullet.directionY = Math.sin(angle) * bullet.speed;
			enemyBullets.push(bullet);
			game.addChild(bullet);
			// Increment shot count for each bullet
			self.shotCount++;
		}
		// Check for death after 55 total shots
		if (self.shotCount >= 55) {
			// Boss dies after 55 shots
			LK.setScore(LK.getScore() + 500);
			scoreText.setText('Score: ' + LK.getScore());
			LK.getSound('bossDefeat').play();
			self.destroy();
			currentBoss = null;
			isBossFight = false;
		}
	};
	self.takeDamage = function () {
		self.health--;
		if (self.health <= 0) {
			// Boss defeated - give big score bonus
			LK.setScore(LK.getScore() + 500);
			scoreText.setText('Score: ' + LK.getScore());
			LK.getSound('enemyHit').play();
			self.destroy();
			currentBoss = null;
			return true; // Boss destroyed
		}
		return false; // Boss still alive
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.direction = 1;
	self.moveDownDistance = 60;
	self.shootChance = 0.001;
	self.points = 10;
	self.health = 1;
	self.maxHealth = 1;
	self.lastShoot = 0;
	self.update = function () {
		self.y += self.speed;
	};
	self.moveDown = function () {
		self.y += self.moveDownDistance;
		self.direction *= -1;
	};
	self.takeDamage = function () {
		self.health--;
		if (self.health <= 0) {
			// Mark enemy as dying to prevent further damage
			self.isDying = true;
			// Flash screen red when enemy explodes
			LK.effects.flashScreen(0xFF0000, 150);
			// Enemy explodes - dramatic visual effect
			tween(self, {
				tint: 0xFF0000,
				scaleX: 2.5,
				scaleY: 2.5,
				alpha: 0
			}, {
				duration: 400,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					// Mark for removal after animation
					self.readyForDestroy = true;
				}
			});
			return true; // Enemy destroyed
		} else {
			// Add red flash effect for damage
			tween(self, {
				tint: 0xFF0000
			}, {
				duration: 200,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(self, {
						tint: 0xFFFFFF
					}, {
						duration: 200,
						easing: tween.easeIn
					});
				}
			});
		}
		return false; // Enemy still alive
	};
	return self;
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.directionX = 0;
	self.directionY = self.speed;
	self.update = function () {
		self.x += self.directionX;
		self.y += self.directionY;
	};
	return self;
});
var LifePowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('lifePowerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.type = 'life';
	self.update = function () {
		self.y += self.speed;
		self.rotation += 0.1;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.lastShoot = 0;
	self.shootDelay = 15;
	self.lives = 3;
	self.invulnerable = false;
	self.invulnerableTime = 0;
	self.shoot = function () {
		if (LK.ticks - self.lastShoot > self.shootDelay) {
			// Create three bullets in a spread pattern
			for (var i = 0; i < 3; i++) {
				var bullet = new PlayerBullet();
				bullet.x = self.x + (i - 1) * 30; // Spread bullets horizontally: -30, 0, +30
				bullet.y = self.y - 40;
				playerBullets.push(bullet);
				game.addChild(bullet);
			}
			self.lastShoot = LK.ticks;
			LK.getSound('shoot').play();
		}
	};
	self.takeDamage = function () {
		if (!self.invulnerable) {
			self.lives--;
			self.invulnerable = true;
			self.invulnerableTime = LK.ticks + 120; // 2 seconds of invulnerability
			LK.getSound('playerHit').play();
			livesText.setText('Lives: ' + self.lives);
			if (self.lives <= 0) {
				LK.showGameOver();
			}
		}
	};
	self.update = function () {
		if (self.invulnerable && LK.ticks > self.invulnerableTime) {
			self.invulnerable = false;
		}
	};
	return self;
});
var PlayerBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('playerBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -18;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.type = 'rapidfire'; // Default type
	self.update = function () {
		self.y += self.speed;
		self.rotation += 0.1;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000033
});

/**** 
* Game Code
****/ 
// Create static background
var background = LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
game.addChild(background);
var player = new Player();
player.x = 1024;
player.y = 2500;
game.addChild(player);
var playerBullets = [];
var enemyBullets = [];
var enemies = [];
var powerups = [];
var lifePowerups = [];
var enemySpawnTimer = 0;
var enemySpawnInterval = 120; // Spawn enemy every 2 seconds (120 ticks at 60fps)
var maxEnemies = 12; // Maximum enemies on screen at once
var dragNode = null;
var rapidFireEndTime = 0;
var currentShootingEnemyIndex = 0;
var enemyShootTimer = 0;
var enemyShootInterval = 90; // Shoot every 1.5 seconds (90 ticks at 60fps)
var playerAutoShootTimer = 0;
var playerAutoShootInterval = 60; // Auto shoot every 1 second (60 ticks at 60fps)
var currentLevel = 1;
var enemiesKilledThisLevel = 0;
var enemiesNeededForNextLevel = 10;
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
scoreText.x = 50;
scoreText.y = 50;
LK.gui.topLeft.addChild(scoreText);
var livesText = new Text2('Lives: 3', {
	size: 80,
	fill: 0xFFFFFF
});
livesText.anchor.set(1, 0);
LK.gui.topRight.addChild(livesText);
var levelText = new Text2('Level: 1', {
	size: 60,
	fill: 0x00FF00
});
levelText.anchor.set(0.5, 0);
levelText.x = 1024;
levelText.y = 100;
LK.gui.top.addChild(levelText);
var levelChangeNotice = new Text2('', {
	size: 100,
	fill: 0xFFD700
});
levelChangeNotice.anchor.set(0.5, 0.5);
levelChangeNotice.x = 1024;
levelChangeNotice.y = 1366;
levelChangeNotice.alpha = 0;
LK.gui.center.addChild(levelChangeNotice);
function spawnEnemy() {
	if (enemies.length < maxEnemies) {
		var enemy = new Enemy();
		enemy.x = Math.random() * (2048 - 120) + 60; // Random X position
		enemy.y = -60; // Start above screen
		// Increase difficulty based on level
		enemy.speed = 2 + Math.random() * 3 + (currentLevel - 1) * 0.5; // Speed increases with level
		enemy.shootChance = 0.001 + (currentLevel - 1) * 0.0005; // Shooting frequency increases
		enemy.health = 1 + Math.floor((currentLevel - 1) / 3); // Health increases every 3 levels
		enemy.maxHealth = enemy.health;
		enemy.points = 10 + (currentLevel - 1) * 2; // More points per level
		enemies.push(enemy);
		game.addChild(enemy);
	}
}
// Play background music when game starts
LK.playMusic('1battlefieldepic');
function handleTouch(x, y, obj) {
	// Allow free movement in all directions within screen bounds
	var targetX = Math.max(40, Math.min(2008, x));
	var targetY = Math.max(40, Math.min(2692, y));
	// Stop any existing movement tween
	tween.stop(player, {
		x: true,
		y: true
	});
	// Slower and more controlled movement to target position
	tween(player, {
		x: targetX,
		y: targetY
	}, {
		duration: 300,
		easing: tween.easeOut
	});
}
game.move = handleTouch;
game.down = function (x, y, obj) {
	// Move player to touch position immediately
	handleTouch(x, y, obj);
	player.shoot();
};
game.up = function (x, y, obj) {
	// Continue moving to last touch position on release
	handleTouch(x, y, obj);
};
game.update = function () {
	// Static background - no scrolling logic needed
	// Check if rapid fire is active
	var isRapidFire = LK.ticks < rapidFireEndTime;
	if (isRapidFire) {
		player.shootDelay = 5;
	} else {
		player.shootDelay = 15;
	}
	// Auto shoot every 1 second
	playerAutoShootTimer++;
	if (playerAutoShootTimer >= playerAutoShootInterval) {
		playerAutoShootTimer = 0;
		player.shoot();
	}
	// 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
		var hitEnemy = false;
		for (var j = enemies.length - 1; j >= 0; j--) {
			if (bullet.intersects(enemies[j]) && !enemies[j].isDying) {
				var enemyDestroyed = enemies[j].takeDamage();
				if (enemyDestroyed) {
					LK.setScore(LK.getScore() + enemies[j].points);
					scoreText.setText('Score: ' + LK.getScore());
					LK.getSound('enemyHit').play();
					enemiesKilledThisLevel++;
					// Check for level up
					if (enemiesKilledThisLevel >= enemiesNeededForNextLevel) {
						currentLevel++;
						enemiesKilledThisLevel = 0;
						enemiesNeededForNextLevel += 5; // Need 5 more enemies each level
						levelText.setText('Level: ' + currentLevel);
						// Show level change notice with animation
						levelChangeNotice.setText('LEVEL ' + currentLevel);
						levelChangeNotice.alpha = 0;
						tween(levelChangeNotice, {
							alpha: 1
						}, {
							duration: 500,
							easing: tween.easeOut,
							onFinish: function onFinish() {
								tween(levelChangeNotice, {
									alpha: 0
								}, {
									duration: 1000,
									easing: tween.easeIn
								});
							}
						});
					}
					// Chance to drop power-up
					if (Math.random() < 0.1) {
						var powerup = new PowerUp();
						powerup.x = enemies[j].x;
						powerup.y = enemies[j].y;
						powerups.push(powerup);
						game.addChild(powerup);
					}
					// Chance to drop life power-up (lower chance)
					if (Math.random() < 0.05) {
						var lifePowerup = new LifePowerUp();
						lifePowerup.x = enemies[j].x;
						lifePowerup.y = enemies[j].y;
						lifePowerups.push(lifePowerup);
						game.addChild(lifePowerup);
					}
					// Don't destroy immediately - wait for animation
				}
				hitEnemy = true;
				break;
			}
		}
		if (hitEnemy) {
			bullet.destroy();
			playerBullets.splice(i, 1);
			continue;
		}
		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;
		}
		bullet.lastY = bullet.y;
	}
	// Handle alternating enemy shooting
	enemyShootTimer++;
	if (enemyShootTimer >= enemyShootInterval && enemies.length > 0) {
		// Reset timer
		enemyShootTimer = 0;
		// Find next valid enemy to shoot
		var attempts = 0;
		var maxAttempts = enemies.length;
		while (attempts < maxAttempts) {
			// Make sure index is within bounds
			if (currentShootingEnemyIndex >= enemies.length) {
				currentShootingEnemyIndex = 0;
			}
			var shootingEnemy = enemies[currentShootingEnemyIndex];
			if (shootingEnemy && shootingEnemy.y < 2000) {
				// Only shoot if enemy is not too low
				// Create bullet from this enemy
				var bullet = new EnemyBullet();
				bullet.x = shootingEnemy.x;
				bullet.y = shootingEnemy.y + 30;
				// Calculate direction towards player
				var deltaX = player.x - shootingEnemy.x;
				var deltaY = player.y - shootingEnemy.y;
				var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
				// Normalize direction and apply speed
				bullet.directionX = deltaX / distance * bullet.speed;
				bullet.directionY = deltaY / distance * bullet.speed;
				enemyBullets.push(bullet);
				game.addChild(bullet);
				break;
			}
			// Move to next enemy
			currentShootingEnemyIndex = (currentShootingEnemyIndex + 1) % enemies.length;
			attempts++;
		}
		// Move to next enemy for next turn
		currentShootingEnemyIndex = (currentShootingEnemyIndex + 1) % enemies.length;
	}
	// Spawn new enemies continuously with level-based spawn rate
	enemySpawnTimer++;
	var adjustedSpawnInterval = Math.max(60, enemySpawnInterval - (currentLevel - 1) * 5); // Faster spawning at higher levels
	if (enemySpawnTimer >= adjustedSpawnInterval) {
		enemySpawnTimer = 0;
		spawnEnemy();
	}
	// Update enemies and remove off-screen ones
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (enemy.lastY === undefined) enemy.lastY = enemy.y;
		// Remove enemies that finished exploding
		if (enemy.readyForDestroy) {
			enemy.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Remove enemies that go off bottom of screen
		if (enemy.lastY <= 2800 && enemy.y > 2800) {
			enemy.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Check if enemies reached player (only if not dying)
		if (enemy.y > 2300 && enemy.intersects(player) && !enemy.isDying) {
			player.takeDamage();
		}
		enemy.lastY = enemy.y;
	}
	// Update power-ups
	for (var i = powerups.length - 1; i >= 0; i--) {
		var powerup = powerups[i];
		if (powerup.lastY === undefined) powerup.lastY = powerup.y;
		// Remove power-ups that go off screen
		if (powerup.lastY <= 2742 && powerup.y > 2742) {
			powerup.destroy();
			powerups.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (powerup.intersects(player)) {
			if (powerup.type === 'rapidfire') {
				rapidFireEndTime = LK.ticks + 300; // 5 seconds of rapid fire
			}
			LK.getSound('powerupCollect').play();
			powerup.destroy();
			powerups.splice(i, 1);
			continue;
		}
		powerup.lastY = powerup.y;
	}
	// Update life power-ups
	for (var i = lifePowerups.length - 1; i >= 0; i--) {
		var lifePowerup = lifePowerups[i];
		if (lifePowerup.lastY === undefined) lifePowerup.lastY = lifePowerup.y;
		// Remove life power-ups that go off screen
		if (lifePowerup.lastY <= 2742 && lifePowerup.y > 2742) {
			lifePowerup.destroy();
			lifePowerups.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (lifePowerup.intersects(player)) {
			if (lifePowerup.type === 'life') {
				player.lives++;
				livesText.setText('Lives: ' + player.lives);
			}
			LK.getSound('powerupCollect').play();
			lifePowerup.destroy();
			lifePowerups.splice(i, 1);
			continue;
		}
		lifePowerup.lastY = lifePowerup.y;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -147,8 +147,10 @@
 		self.health--;
 		if (self.health <= 0) {
 			// Mark enemy as dying to prevent further damage
 			self.isDying = true;
+			// Flash screen red when enemy explodes
+			LK.effects.flashScreen(0xFF0000, 150);
 			// Enemy explodes - dramatic visual effect
 			tween(self, {
 				tint: 0xFF0000,
 				scaleX: 2.5,