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

/**** 
* Classes
****/ 
var Alien = Container.expand(function () {
	var self = Container.call(this);
	// Create both movement sprites
	var alienMove1 = self.attachAsset('alienMove1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var alienMove2 = self.attachAsset('alienMove2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initially show first movement sprite, hide second
	alienMove2.visible = false;
	self.speed = 1;
	self.dropDistance = 40;
	self.shootChance = 0.0005; // Small chance to shoot each frame
	self.animationTimer = 0;
	self.animationDuration = 20; // Switch sprites every 20 ticks for smoother movement animation
	self.currentSprite = 1; // Track which sprite is currently visible
	self.update = function () {
		// Move alien down continuously
		self.y += 0.3;
		// Move alien horizontally
		self.x += alienDirection * alienSpeed;
		// Handle movement sprite animation
		self.animationTimer++;
		if (self.animationTimer >= self.animationDuration) {
			self.animationTimer = 0;
			// Switch between movement sprites
			if (self.currentSprite === 1) {
				alienMove1.visible = false;
				alienMove2.visible = true;
				self.currentSprite = 2;
			} else {
				alienMove1.visible = true;
				alienMove2.visible = false;
				self.currentSprite = 1;
			}
		}
		// Random shooting
		if (Math.random() < self.shootChance) {
			createAlienBullet(self.x, self.y);
		}
	};
	return self;
});
var AlienBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('alienBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var AlienType2 = Container.expand(function () {
	var self = Container.call(this);
	// Create both movement sprites for type 2
	var alienMove1 = self.attachAsset('alienType2Move1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var alienMove2 = self.attachAsset('alienType2Move2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initially show first movement sprite, hide second
	alienMove2.visible = false;
	self.speed = 1.5; // Faster than type 1
	self.dropDistance = 40;
	self.shootChance = 0.001; // Higher chance to shoot
	self.animationTimer = 0;
	self.animationDuration = 15; // Faster animation
	self.currentSprite = 1;
	self.update = function () {
		// Move alien down continuously (faster)
		self.y += 0.5;
		// Move alien horizontally
		self.x += alienDirection * alienSpeed;
		// Handle movement sprite animation
		self.animationTimer++;
		if (self.animationTimer >= self.animationDuration) {
			self.animationTimer = 0;
			// Switch between movement sprites
			if (self.currentSprite === 1) {
				alienMove1.visible = false;
				alienMove2.visible = true;
				self.currentSprite = 2;
			} else {
				alienMove1.visible = true;
				alienMove2.visible = false;
				self.currentSprite = 1;
			}
		}
		// Random shooting
		if (Math.random() < self.shootChance) {
			createAlienBullet(self.x, self.y);
		}
	};
	return self;
});
var AlienType3 = Container.expand(function () {
	var self = Container.call(this);
	// Create both movement sprites for type 3
	var alienMove1 = self.attachAsset('alienType3Move1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var alienMove2 = self.attachAsset('alienType3Move2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initially show first movement sprite, hide second
	alienMove2.visible = false;
	self.speed = 0.8; // Slower but tougher
	self.dropDistance = 40;
	self.shootChance = 0.0015; // Highest chance to shoot
	self.animationTimer = 0;
	self.animationDuration = 25; // Slower animation
	self.currentSprite = 1;
	self.health = 2; // Takes 2 hits to destroy
	self.update = function () {
		// Move alien down continuously (slower)
		self.y += 0.2;
		// Move alien horizontally
		self.x += alienDirection * alienSpeed;
		// Handle movement sprite animation
		self.animationTimer++;
		if (self.animationTimer >= self.animationDuration) {
			self.animationTimer = 0;
			// Switch between movement sprites
			if (self.currentSprite === 1) {
				alienMove1.visible = false;
				alienMove2.visible = true;
				self.currentSprite = 2;
			} else {
				alienMove1.visible = true;
				alienMove2.visible = false;
				self.currentSprite = 1;
			}
		}
		// Random shooting
		if (Math.random() < self.shootChance) {
			createAlienBullet(self.x, self.y);
		}
	};
	return self;
});
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('boss', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 75;
	self.maxHealth = 75;
	self.speed = 2;
	self.shootCooldown = 0;
	self.shootRate = 30;
	self.specialAttackCooldown = 0;
	self.specialAttackRate = 180;
	self.movementPhase = 0;
	self.movementTimer = 0;
	self.movementDuration = 120;
	self.isDefeated = false;
	self.currentPhase = 1;
	self.phaseTransitionTimer = 0;
	self.burstAttackTimer = 0;
	self.spiralAngle = 0;
	self.waveAttackTimer = 0;
	self.update = function () {
		if (self.isDefeated) return;
		// Determine current phase based on health
		var healthPercent = self.health / self.maxHealth;
		var newPhase = 1;
		if (healthPercent <= 0.66) newPhase = 2;
		if (healthPercent <= 0.33) newPhase = 3;
		// Phase transition effects
		if (newPhase !== self.currentPhase) {
			self.currentPhase = newPhase;
			self.phaseTransitionTimer = 60; // 1 second transition
			LK.effects.flashScreen(0xff0000, 500);
			tween(self, {
				scaleX: 1.5,
				scaleY: 1.5,
				tint: 0xff4444
			}, {
				duration: 300,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(self, {
						scaleX: 1,
						scaleY: 1,
						tint: 0xffffff
					}, {
						duration: 300,
						easing: tween.easeIn
					});
				}
			});
		}
		// Skip attacks during phase transition
		if (self.phaseTransitionTimer > 0) {
			self.phaseTransitionTimer--;
			return;
		}
		// Phase 1: Basic horizontal movement with single shots
		if (self.currentPhase === 1) {
			// Horizontal movement
			self.x += self.speed;
			if (self.x <= 150 || self.x >= 1898) {
				self.speed *= -1;
			}
			// Regular shooting
			self.shootCooldown--;
			if (self.shootCooldown <= 0) {
				self.shootCooldown = 45;
				createBossBullet(self.x, self.y + 100);
			}
		}
		// Phase 2: Circular movement with burst attacks
		else if (self.currentPhase === 2) {
			// Circular movement
			var angle = LK.ticks / 60 * Math.PI;
			self.x = 1024 + Math.cos(angle) * 250;
			self.y = 350 + Math.sin(angle) * 80;
			// Burst attack - 5 bullets in quick succession
			self.burstAttackTimer++;
			if (self.burstAttackTimer >= 120) {
				// Every 2 seconds
				self.burstAttackTimer = 0;
				for (var burst = 0; burst < 5; burst++) {
					LK.setTimeout(function (burstIndex) {
						return function () {
							if (!self.isDefeated) {
								createBossBullet(self.x + (burstIndex - 2) * 25, self.y + 100);
							}
						};
					}(burst), burst * 100); // 100ms delays between shots
				}
			}
		}
		// Phase 3: Aggressive patterns with spiral and wave attacks
		else if (self.currentPhase === 3) {
			// Aggressive dive and retreat pattern
			self.movementTimer++;
			if (self.movementTimer < 60) {
				self.y += 2; // Dive down
			} else if (self.movementTimer < 120) {
				self.y -= 1; // Retreat up
			} else {
				self.movementTimer = 0;
			}
			// Horizontal aggressive movement
			self.x += self.speed * 1.5;
			if (self.x <= 100 || self.x >= 1948) {
				self.speed *= -1;
			}
			// Spiral attack pattern
			self.spiralAngle += 0.3;
			if (LK.ticks % 20 === 0) {
				// Every 20 ticks
				for (var spiral = 0; spiral < 3; spiral++) {
					var spiralX = self.x + Math.cos(self.spiralAngle + spiral * 2.1) * 60;
					var spiralY = self.y + 100;
					createBossBullet(spiralX, spiralY);
				}
			}
			// Wave attack - sweeping bullets
			self.waveAttackTimer++;
			if (self.waveAttackTimer >= 180) {
				// Every 3 seconds
				self.waveAttackTimer = 0;
				for (var wave = 0; wave < 7; wave++) {
					LK.setTimeout(function (waveIndex) {
						return function () {
							if (!self.isDefeated) {
								var waveX = 200 + waveIndex * 250;
								createBossBullet(waveX, self.y + 100);
							}
						};
					}(wave), wave * 50); // 50ms delays for wave effect
				}
			}
		}
	};
	self.takeDamage = function () {
		self.health--;
		var healthPercent = self.health / self.maxHealth;
		// Flash red when hit
		tween(self, {
			tint: 0xff0000
		}, {
			duration: 100,
			onFinish: function onFinish() {
				tween(self, {
					tint: 0xffffff
				}, {
					duration: 100
				});
			}
		});
		// Scale animation when damaged
		tween(self, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 150,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(self, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 150,
					easing: tween.easeIn
				});
			}
		});
		if (self.health <= 0) {
			self.defeat();
		}
	};
	self.defeat = function () {
		self.isDefeated = true;
		// Victory animation
		tween(self, {
			scaleX: 2,
			scaleY: 2,
			alpha: 0,
			rotation: Math.PI * 2
		}, {
			duration: 2000,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				LK.setScore(LK.getScore() + 1000);
				scoreTxt.setText('Score: ' + LK.getScore());
				LK.effects.flashScreen(0x00ff00, 2000);
				LK.showYouWin();
			}
		});
	};
	return self;
});
var BossBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bossBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PlasmaBomb = Container.expand(function () {
	var self = Container.call(this);
	var bombGraphics = self.attachAsset('plasmaBomb', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -8;
	self.explosionRadius = 200;
	self.hasExploded = false;
	self.update = function () {
		self.y += self.speed;
		// Pulsing animation
		bombGraphics.scaleX = 1 + Math.sin(LK.ticks * 0.3) * 0.3;
		bombGraphics.scaleY = 1 + Math.sin(LK.ticks * 0.3) * 0.3;
		// Glow effect
		bombGraphics.alpha = 0.8 + Math.sin(LK.ticks * 0.5) * 0.2;
	};
	self.explode = function () {
		if (self.hasExploded) return;
		self.hasExploded = true;
		// Create explosion visual effect
		tween(self, {
			scaleX: 5,
			scaleY: 5,
			alpha: 0
		}, {
			duration: 500,
			easing: tween.easeOut
		});
		// Screen flash for explosion
		LK.effects.flashScreen(0x00ffff, 300);
	};
	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 = -12;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PlayerShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.attachAsset('playerShip', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.shootCooldown = 0;
	self.shootRate = 15; // Fire every 15 ticks
	self.plasmaBombCooldown = 0;
	self.plasmaBombRate = 1200; // 20 seconds at 60 FPS
	self.moveLeft = function () {
		self.x -= self.speed;
		if (self.x < 60) self.x = 60;
	};
	self.moveRight = function () {
		self.x += self.speed;
		if (self.x > 1988) self.x = 1988;
	};
	self.shoot = function () {
		if (self.shootCooldown <= 0) {
			self.shootCooldown = self.shootRate;
			createPlayerBullet();
			LK.getSound('shoot').play();
		}
	};
	self.shootPlasmaBomb = function () {
		if (self.plasmaBombCooldown <= 0) {
			self.plasmaBombCooldown = self.plasmaBombRate;
			createPlasmaBomb();
			LK.getSound('shoot').play();
		}
	};
	self.update = function () {
		// Update plasma bomb cooldown
		if (self.plasmaBombCooldown > 0) {
			self.plasmaBombCooldown--;
		}
	};
	return self;
});
var Star = Container.expand(function () {
	var self = Container.call(this);
	var starGraphics = self.attachAsset('star', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 3 + 1; // Random speed between 1-4
	self.twinkleTimer = Math.random() * 60; // Random start for twinkling
	self.update = function () {
		self.y += self.speed;
		// Twinkling effect
		self.twinkleTimer++;
		starGraphics.alpha = 0.3 + Math.sin(self.twinkleTimer * 0.1) * 0.7;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var player;
var aliens = [];
var playerBullets = [];
var alienBullets = [];
var alienDirection = 1; // 1 for right, -1 for left
var alienSpeed = 0.5;
var waveNumber = 1;
var aliensPerRow = 8;
var alienRows = 5;
var alienSpacingX = 200;
var alienSpacingY = 100;
var dragNode = null;
var boss = null;
var bossBullets = [];
var plasmaBombs = [];
var isBossWave = false;
var clickCount = 0;
var clickTimer = 0;
var maxClickTime = 120; // 2 seconds at 60 FPS to complete quintuple click
var requiredClicks = 5;
var autoShootTimer = 0;
var autoShootInterval = 60; // 1 second at 60 FPS
var stars = [];
var starSpawnTimer = 0;
var starSpawnRate = 5; // Spawn a star every 5 ticks
// Score display
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Wave display
var waveTxt = new Text2('Wave: 1', {
	size: 60,
	fill: 0xFFFFFF
});
waveTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(waveTxt);
// Initialize player
player = game.addChild(new PlayerShip());
player.x = 1024;
player.y = 2600;
function createPlayerBullet() {
	var bullet = new PlayerBullet();
	bullet.x = player.x;
	bullet.y = player.y - 50;
	bullet.lastY = bullet.y;
	playerBullets.push(bullet);
	game.addChild(bullet);
}
function createAlienBullet(x, y) {
	var bullet = new AlienBullet();
	bullet.x = x;
	bullet.y = y + 40;
	bullet.lastY = bullet.y;
	alienBullets.push(bullet);
	game.addChild(bullet);
}
function createBossBullet(x, y) {
	var bullet = new BossBullet();
	bullet.x = x;
	bullet.y = y;
	bullet.lastY = bullet.y;
	bossBullets.push(bullet);
	game.addChild(bullet);
}
function createPlasmaBomb() {
	var bomb = new PlasmaBomb();
	bomb.x = player.x;
	bomb.y = player.y - 50;
	bomb.lastY = bomb.y;
	plasmaBombs.push(bomb);
	game.addChild(bomb);
}
function createStar() {
	var star = new Star();
	star.x = Math.random() * 2048; // Random X position across screen width
	star.y = -10; // Start just above screen
	star.lastY = star.y;
	stars.push(star);
	game.addChild(star);
}
function spawnWave() {
	// Check if it's time for boss fight
	if (waveNumber > 10) {
		isBossWave = true;
		aliens = [];
		boss = game.addChild(new Boss());
		boss.x = 1024;
		boss.y = 300;
		waveTxt.setText('BOSS FIGHT!');
		return;
	}
	isBossWave = false;
	boss = null;
	aliens = [];
	var startX = (2048 - (aliensPerRow - 1) * alienSpacingX) / 2;
	var startY = 200;
	for (var row = 0; row < alienRows; row++) {
		for (var col = 0; col < aliensPerRow; col++) {
			var alien;
			// Create different alien types based on row
			if (row < 2) {
				alien = new Alien(); // Top rows: basic aliens
			} else if (row < 4) {
				alien = new AlienType2(); // Middle rows: faster aliens
			} else {
				alien = new AlienType3(); // Bottom row: tough aliens
			}
			alien.x = startX + col * alienSpacingX;
			alien.y = startY + row * alienSpacingY;
			alien.lastY = alien.y;
			alien.lastIntersectingPlayer = false;
			aliens.push(alien);
			game.addChild(alien);
		}
	}
	alienSpeed += 0.2; // Increase speed each wave
	waveTxt.setText('Wave: ' + waveNumber);
}
function checkAlienBounds() {
	var shouldChangeDirection = false;
	// Check if any alien hits the edge
	for (var i = 0; i < aliens.length; i++) {
		var alien = aliens[i];
		if (alien.x <= 50 || alien.x >= 1998) {
			shouldChangeDirection = true;
			break;
		}
	}
	if (shouldChangeDirection) {
		alienDirection *= -1;
	}
}
function handleMove(x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
		if (dragNode.x < 60) dragNode.x = 60;
		if (dragNode.x > 1988) dragNode.x = 1988;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	dragNode = player;
	handleMove(x, y, obj);
	// Quintuple click detection for plasma bomb
	clickCount++;
	clickTimer = maxClickTime; // Reset timer on each click
	if (clickCount >= requiredClicks) {
		// Quintuple click achieved - activate plasma bomb
		player.shootPlasmaBomb();
		clickCount = 0; // Reset click count
		clickTimer = 0;
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Initialize first wave
spawnWave();
game.update = function () {
	// Update click timer for quintuple click detection
	if (clickTimer > 0) {
		clickTimer--;
		if (clickTimer <= 0) {
			clickCount = 0; // Reset click count if timer expires
		}
	}
	// Spawn stars for background
	starSpawnTimer++;
	if (starSpawnTimer >= starSpawnRate) {
		starSpawnTimer = 0;
		createStar();
	}
	// Update and cleanup stars
	for (var i = stars.length - 1; i >= 0; i--) {
		var star = stars[i];
		// Remove stars that go off screen
		if (star.lastY <= 2752 && star.y > 2752) {
			star.destroy();
			stars.splice(i, 1);
			continue;
		}
		star.lastY = star.y;
	}
	// Update autonomous shooting timer
	autoShootTimer++;
	if (autoShootTimer >= autoShootInterval) {
		autoShootTimer = 0;
		player.shoot();
	}
	// Update player shoot cooldown
	if (player.shootCooldown > 0) {
		player.shootCooldown--;
	}
	// Update player bullets
	for (var i = playerBullets.length - 1; i >= 0; i--) {
		var bullet = playerBullets[i];
		// Remove bullets that go off screen
		if (bullet.lastY >= -20 && bullet.y < -20) {
			bullet.destroy();
			playerBullets.splice(i, 1);
			continue;
		}
		// Check collision with boss
		var hit = false;
		if (isBossWave && boss && !boss.isDefeated && bullet.intersects(boss)) {
			boss.takeDamage();
			LK.getSound('alienHit').play();
			LK.setScore(LK.getScore() + 50);
			scoreTxt.setText('Score: ' + LK.getScore());
			bullet.destroy();
			playerBullets.splice(i, 1);
			hit = true;
		}
		// Check collision with aliens
		if (!hit) {
			for (var j = aliens.length - 1; j >= 0; j--) {
				var alien = aliens[j];
				if (bullet.intersects(alien)) {
					// Handle different alien types
					if (alien.health !== undefined) {
						// AlienType3 with health system
						alien.health--;
						LK.getSound('alienHit').play();
						LK.effects.flashObject(alien, 0xff0000, 200);
						if (alien.health <= 0) {
							LK.setScore(LK.getScore() + 30); // More points for tough aliens
							alien.destroy();
							aliens.splice(j, 1);
						} else {
							LK.setScore(LK.getScore() + 10); // Points for hitting but not destroying
						}
					} else {
						// Regular aliens and AlienType2
						var points = alien.speed > 1 ? 20 : 10; // More points for faster aliens
						LK.setScore(LK.getScore() + points);
						LK.getSound('alienHit').play();
						LK.effects.flashObject(alien, 0xffff00, 200);
						alien.destroy();
						aliens.splice(j, 1);
					}
					scoreTxt.setText('Score: ' + LK.getScore());
					bullet.destroy();
					playerBullets.splice(i, 1);
					hit = true;
					break;
				}
			}
		}
		if (!hit) {
			bullet.lastY = bullet.y;
		}
	}
	// Update alien bullets
	for (var i = alienBullets.length - 1; i >= 0; i--) {
		var bullet = alienBullets[i];
		// Remove bullets that go off screen
		if (bullet.lastY <= 2752 && bullet.y > 2752) {
			bullet.destroy();
			alienBullets.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (bullet.intersects(player)) {
			LK.getSound('playerHit').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		bullet.lastY = bullet.y;
	}
	// Update boss bullets
	for (var i = bossBullets.length - 1; i >= 0; i--) {
		var bullet = bossBullets[i];
		// Remove bullets that go off screen
		if (bullet.lastY <= 2752 && bullet.y > 2752) {
			bullet.destroy();
			bossBullets.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (bullet.intersects(player)) {
			LK.getSound('playerHit').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		bullet.lastY = bullet.y;
	}
	// Check if aliens reach bottom
	for (var i = 0; i < aliens.length; i++) {
		var alien = aliens[i];
		if (alien.lastY < 2400 && alien.y >= 2400) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		alien.lastY = alien.y;
	}
	// Update plasma bombs
	for (var i = plasmaBombs.length - 1; i >= 0; i--) {
		var bomb = plasmaBombs[i];
		// Remove bombs that go off screen
		if (bomb.lastY >= -50 && bomb.y < -50) {
			bomb.destroy();
			plasmaBombs.splice(i, 1);
			continue;
		}
		// Check collision with aliens for explosion
		var shouldExplode = false;
		if (!bomb.hasExploded) {
			// Check collision with aliens
			for (var j = 0; j < aliens.length; j++) {
				var alien = aliens[j];
				if (bomb.intersects(alien)) {
					shouldExplode = true;
					break;
				}
			}
			// Check collision with boss
			if (isBossWave && boss && !boss.isDefeated && bomb.intersects(boss)) {
				shouldExplode = true;
			}
		}
		if (shouldExplode) {
			bomb.explode();
			// Damage all aliens within explosion radius
			for (var j = aliens.length - 1; j >= 0; j--) {
				var alien = aliens[j];
				var dx = alien.x - bomb.x;
				var dy = alien.y - bomb.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance <= bomb.explosionRadius) {
					// Handle different alien types
					if (alien.health !== undefined) {
						alien.health -= 2; // More damage to tough aliens
						LK.getSound('alienHit').play();
						LK.effects.flashObject(alien, 0xff0000, 200);
						if (alien.health <= 0) {
							LK.setScore(LK.getScore() + 30);
							alien.destroy();
							aliens.splice(j, 1);
						} else {
							LK.setScore(LK.getScore() + 15);
						}
					} else {
						var points = alien.speed > 1 ? 20 : 10;
						LK.setScore(LK.getScore() + points);
						LK.getSound('alienHit').play();
						LK.effects.flashObject(alien, 0xffff00, 200);
						alien.destroy();
						aliens.splice(j, 1);
					}
				}
			}
			// Damage boss if in range
			if (isBossWave && boss && !boss.isDefeated) {
				var dx = boss.x - bomb.x;
				var dy = boss.y - bomb.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance <= bomb.explosionRadius) {
					boss.takeDamage();
					boss.takeDamage(); // Double damage
					boss.takeDamage(); // Triple damage from plasma bomb
					LK.getSound('alienHit').play();
					LK.setScore(LK.getScore() + 150);
				}
			}
			scoreTxt.setText('Score: ' + LK.getScore());
			// Remove bomb after explosion
			LK.setTimeout(function () {
				if (bomb && bomb.parent) {
					bomb.destroy();
					var bombIndex = plasmaBombs.indexOf(bomb);
					if (bombIndex >= 0) {
						plasmaBombs.splice(bombIndex, 1);
					}
				}
			}, 500);
		}
		if (!shouldExplode) {
			bomb.lastY = bomb.y;
		}
	}
	// Check alien boundaries for direction change
	checkAlienBounds();
	// Check if all aliens destroyed (or boss defeated)
	if (!isBossWave && aliens.length === 0) {
		waveNumber++;
		spawnWave();
	} else if (isBossWave && boss && boss.isDefeated) {
		// Boss defeated - game completed
	}
};

===================================================================
--- original.js
+++ change.js
@@ -162,10 +162,10 @@
 	var bossGraphics = self.attachAsset('boss', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	self.health = 50;
-	self.maxHealth = 50;
+	self.health = 75;
+	self.maxHealth = 75;
 	self.speed = 2;
 	self.shootCooldown = 0;
 	self.shootRate = 30;
 	self.specialAttackCooldown = 0;
@@ -173,54 +173,128 @@
 	self.movementPhase = 0;
 	self.movementTimer = 0;
 	self.movementDuration = 120;
 	self.isDefeated = false;
+	self.currentPhase = 1;
+	self.phaseTransitionTimer = 0;
+	self.burstAttackTimer = 0;
+	self.spiralAngle = 0;
+	self.waveAttackTimer = 0;
 	self.update = function () {
 		if (self.isDefeated) return;
-		// Movement patterns
-		self.movementTimer++;
-		if (self.movementTimer >= self.movementDuration) {
-			self.movementTimer = 0;
-			self.movementPhase = (self.movementPhase + 1) % 3;
+		// Determine current phase based on health
+		var healthPercent = self.health / self.maxHealth;
+		var newPhase = 1;
+		if (healthPercent <= 0.66) newPhase = 2;
+		if (healthPercent <= 0.33) newPhase = 3;
+		// Phase transition effects
+		if (newPhase !== self.currentPhase) {
+			self.currentPhase = newPhase;
+			self.phaseTransitionTimer = 60; // 1 second transition
+			LK.effects.flashScreen(0xff0000, 500);
+			tween(self, {
+				scaleX: 1.5,
+				scaleY: 1.5,
+				tint: 0xff4444
+			}, {
+				duration: 300,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					tween(self, {
+						scaleX: 1,
+						scaleY: 1,
+						tint: 0xffffff
+					}, {
+						duration: 300,
+						easing: tween.easeIn
+					});
+				}
+			});
 		}
-		// Different movement patterns
-		if (self.movementPhase === 0) {
+		// Skip attacks during phase transition
+		if (self.phaseTransitionTimer > 0) {
+			self.phaseTransitionTimer--;
+			return;
+		}
+		// Phase 1: Basic horizontal movement with single shots
+		if (self.currentPhase === 1) {
 			// Horizontal movement
 			self.x += self.speed;
 			if (self.x <= 150 || self.x >= 1898) {
 				self.speed *= -1;
 			}
-		} else if (self.movementPhase === 1) {
+			// Regular shooting
+			self.shootCooldown--;
+			if (self.shootCooldown <= 0) {
+				self.shootCooldown = 45;
+				createBossBullet(self.x, self.y + 100);
+			}
+		}
+		// Phase 2: Circular movement with burst attacks
+		else if (self.currentPhase === 2) {
 			// Circular movement
-			var angle = self.movementTimer / 60 * Math.PI;
-			self.x = 1024 + Math.cos(angle) * 300;
-			self.y = 400 + Math.sin(angle) * 100;
-		} else {
-			// Aggressive dive pattern
-			self.y += 1;
-			if (self.y > 600) {
-				tween(self, {
-					y: 300
-				}, {
-					duration: 1000,
-					easing: tween.easeOut
-				});
+			var angle = LK.ticks / 60 * Math.PI;
+			self.x = 1024 + Math.cos(angle) * 250;
+			self.y = 350 + Math.sin(angle) * 80;
+			// Burst attack - 5 bullets in quick succession
+			self.burstAttackTimer++;
+			if (self.burstAttackTimer >= 120) {
+				// Every 2 seconds
+				self.burstAttackTimer = 0;
+				for (var burst = 0; burst < 5; burst++) {
+					LK.setTimeout(function (burstIndex) {
+						return function () {
+							if (!self.isDefeated) {
+								createBossBullet(self.x + (burstIndex - 2) * 25, self.y + 100);
+							}
+						};
+					}(burst), burst * 100); // 100ms delays between shots
+				}
 			}
 		}
-		// Regular shooting
-		self.shootCooldown--;
-		if (self.shootCooldown <= 0) {
-			self.shootCooldown = self.shootRate;
-			createBossBullet(self.x, self.y + 100);
+		// Phase 3: Aggressive patterns with spiral and wave attacks
+		else if (self.currentPhase === 3) {
+			// Aggressive dive and retreat pattern
+			self.movementTimer++;
+			if (self.movementTimer < 60) {
+				self.y += 2; // Dive down
+			} else if (self.movementTimer < 120) {
+				self.y -= 1; // Retreat up
+			} else {
+				self.movementTimer = 0;
+			}
+			// Horizontal aggressive movement
+			self.x += self.speed * 1.5;
+			if (self.x <= 100 || self.x >= 1948) {
+				self.speed *= -1;
+			}
+			// Spiral attack pattern
+			self.spiralAngle += 0.3;
+			if (LK.ticks % 20 === 0) {
+				// Every 20 ticks
+				for (var spiral = 0; spiral < 3; spiral++) {
+					var spiralX = self.x + Math.cos(self.spiralAngle + spiral * 2.1) * 60;
+					var spiralY = self.y + 100;
+					createBossBullet(spiralX, spiralY);
+				}
+			}
+			// Wave attack - sweeping bullets
+			self.waveAttackTimer++;
+			if (self.waveAttackTimer >= 180) {
+				// Every 3 seconds
+				self.waveAttackTimer = 0;
+				for (var wave = 0; wave < 7; wave++) {
+					LK.setTimeout(function (waveIndex) {
+						return function () {
+							if (!self.isDefeated) {
+								var waveX = 200 + waveIndex * 250;
+								createBossBullet(waveX, self.y + 100);
+							}
+						};
+					}(wave), wave * 50); // 50ms delays for wave effect
+				}
+			}
 		}
-		// Special attack - triple shot
-		self.specialAttackCooldown--;
-		if (self.specialAttackCooldown <= 0) {
-			self.specialAttackCooldown = self.specialAttackRate;
-			createBossBullet(self.x - 50, self.y + 100);
-			createBossBullet(self.x, self.y + 100);
-			createBossBullet(self.x + 50, self.y + 100);
-		}
 	};
 	self.takeDamage = function () {
 		self.health--;
 		var healthPercent = self.health / self.maxHealth;
@@ -253,18 +327,8 @@
 					easing: tween.easeIn
 				});
 			}
 		});
-		// Increase aggression as health decreases
-		if (healthPercent < 0.5) {
-			self.shootRate = 20;
-			self.specialAttackRate = 120;
-		}
-		if (healthPercent < 0.25) {
-			self.shootRate = 15;
-			self.specialAttackRate = 90;
-			self.speed = 3;
-		}
 		if (self.health <= 0) {
 			self.defeat();
 		}
 	};