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

/**** 
* Classes
****/ 
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('boss', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.maxHealth = 10000;
	self.health = 10000;
	self.attackCooldown = 0;
	self.attackInterval = 180; // 3 seconds at 60fps
	self.moveDirection = 1; // 1 for right, -1 for left
	self.moveSpeed = 2;
	self.leftBound = 200;
	self.rightBound = 1848;
	self.verticalDirection = 1; // 1 for down, -1 for up
	self.verticalSpeed = 1;
	self.topBound = 300;
	self.bottomBound = 500;
	self.specialAttackTimer = 0;
	self.specialAttackInterval = 300; // 5 seconds at 60fps
	self.isCharging = false;
	self.chargeTime = 0;
	self.maxChargeTime = 60; // 1 second at 60fps
	self.indicator = null;
	self.finalAttackTriggered = false;
	self.isFinalAttacking = false;
	self.finalAttackTime = 0;
	self.maxFinalAttackTime = 180; // 3 seconds at 60fps
	self.finalAttackCanceled = false;
	self.laserAttackTimer = 0;
	self.laserAttackInterval = 900; // 15 seconds at 60fps
	self.laserCooldown = 0; // Cooldown timer for laser attacks
	self.laserCooldownTime = 300; // 5 seconds cooldown at 60fps
	self.isChargingLaser = false; // New state for laser charging
	self.laserChargeTime = 0; // Timer for laser charging
	self.maxLaserChargeTime = 180; // 3 seconds at 60fps
	self.laserUsed = false; // Track if laser has been used (only once allowed)
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health < 0) self.health = 0;
		// Flash red when taking damage
		tween(bossGraphics, {
			tint: 0xff8888
		}, {
			duration: 100,
			onFinish: function onFinish() {
				tween(bossGraphics, {
					tint: 0xffffff
				}, {
					duration: 100
				});
			}
		});
	};
	self.attack = function () {
		return {
			x: self.x,
			y: self.y + 100,
			damage: 1
		};
	};
	self.specialAttack = function () {
		return {
			x: self.x,
			y: self.y + 100,
			damage: 1
		};
	};
	self.startFinalAttack = function () {
		self.isFinalAttacking = true;
		self.finalAttackTime = 0;
		self.finalAttackCanceled = false;
		// Boss stops moving during final attack
	};
	self.cancelFinalAttack = function () {
		self.finalAttackCanceled = true;
		self.isFinalAttacking = false;
		self.finalAttackTime = 0;
	};
	self.finalAttack = function () {
		return {
			x: 1024,
			// Center of screen horizontally
			y: 1366,
			// Center vertically to cover entire map
			damage: 1
		};
	};
	self.laserAttack = function () {
		return {
			x: self.x,
			y: 1366,
			// Center vertically to cover full screen
			damage: 1
		};
	};
	self.update = function () {
		// Check for final attack trigger (when health drops to 1000 or below)
		if (self.health <= 1000 && !self.finalAttackTriggered && !self.isFinalAttacking) {
			self.finalAttackTriggered = true;
			self.startFinalAttack();
			return "finalAttack";
		}
		// Handle final attack
		if (self.isFinalAttacking && !self.finalAttackCanceled) {
			self.finalAttackTime++;
			if (self.finalAttackTime >= self.maxFinalAttackTime) {
				// Final attack completes - deal damage to entire screen
				self.isFinalAttacking = false;
				return "finalAttackComplete";
			}
			return false; // Boss doesn't move during final attack
		}
		// Handle special attack timing
		if (!self.isFinalAttacking) {
			self.specialAttackTimer++;
			// Fast special attack mode when boss health drops to half or below
			var currentSpecialInterval = self.health <= self.maxHealth / 2 ? 100 : self.specialAttackInterval; // Much faster when health <= 5000
			// Check if it's time for special attack
			if (self.specialAttackTimer >= currentSpecialInterval && !self.isCharging) {
				self.isCharging = true;
				self.chargeTime = 0;
				// Create indicator
				if (!self.indicator) {
					self.indicator = self.addChild(LK.getAsset('bossSpecialIndicator', {
						anchorX: 0.5,
						anchorY: 0.5
					}));
					self.indicator.y = 80; // Position above boss
				}
			}
			// Handle laser attack timing - only in fast mode
			if (self.health <= self.maxHealth / 2) {
				self.laserAttackTimer++;
				// Update laser cooldown
				if (self.laserCooldown > 0) {
					self.laserCooldown--;
				}
				// Only allow laser attack once when entering fast mode
				if (self.laserAttackTimer >= 300 && self.laserCooldown <= 0 && !self.isChargingLaser && !self.laserUsed) {
					self.isChargingLaser = true;
					self.laserChargeTime = 0;
					self.laserAttackTimer = 0;
				}
			}
		}
		// Handle laser charging phase (boss stops moving)
		if (self.isChargingLaser) {
			self.laserChargeTime++;
			// Make boss flash to indicate laser charging
			tween.stop(bossGraphics, {
				tint: true
			});
			if (self.laserChargeTime % 30 === 0) {
				// Flash every 0.5 seconds
				tween(bossGraphics, {
					tint: 0xffff00
				}, {
					duration: 150
				});
			}
			if (self.laserChargeTime >= self.maxLaserChargeTime) {
				// End laser charging, launch laser attack
				self.isChargingLaser = false;
				self.laserChargeTime = 0;
				self.laserCooldown = self.laserCooldownTime; // Start cooldown
				self.laserUsed = true; // Mark laser as used
				tween(bossGraphics, {
					tint: 0xffffff
				}, {
					duration: 100
				}); // Reset boss color
				return "laser";
			}
		} else if (self.isCharging) {
			self.chargeTime++;
			// Make indicator blink
			if (self.indicator) {
				self.indicator.alpha = Math.sin(self.chargeTime * 0.3) * 0.5 + 0.5;
			}
			if (self.chargeTime >= self.maxChargeTime) {
				// End charging, launch special attack
				self.isCharging = false;
				self.specialAttackTimer = 0;
				// Remove indicator
				if (self.indicator) {
					self.indicator.destroy();
					self.indicator = null;
				}
				return "special"; // Signal to create special attack
			}
		} else if (!self.isFinalAttacking) {
			// Normal movement only when not charging and not doing final attack
			// Handle horizontal movement
			self.x += self.moveSpeed * self.moveDirection;
			// Change direction when hitting bounds
			if (self.x <= self.leftBound) {
				self.moveDirection = 1; // Move right
				self.x = self.leftBound;
			} else if (self.x >= self.rightBound) {
				self.moveDirection = -1; // Move left
				self.x = self.rightBound;
			}
			// Handle vertical movement
			self.y += self.verticalSpeed * self.verticalDirection;
			// Change direction when hitting vertical bounds
			if (self.y <= self.topBound) {
				self.verticalDirection = 1; // Move down
				self.y = self.topBound;
			} else if (self.y >= self.bottomBound) {
				self.verticalDirection = -1; // Move up
				self.y = self.bottomBound;
			}
		}
		// Normal attacks (only when not charging, not charging laser and not doing final attack)
		if (!self.isCharging && !self.isChargingLaser && !self.isFinalAttacking) {
			self.attackCooldown++;
			// Fast attack mode when boss health drops to half or below
			var currentAttackInterval = self.health <= self.maxHealth / 2 ? 10 : self.attackInterval; // Super fast when health <= 5000
			if (self.attackCooldown >= currentAttackInterval) {
				self.attackCooldown = 0;
				return true; // Signal to create attack
			}
		}
		return false;
	};
	return self;
});
var BossAttack = Container.expand(function () {
	var self = Container.call(this);
	var attackGraphics = self.attachAsset('bossAttack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Speed increases in fast mode when boss health is low
	self.speed = boss && boss.health <= boss.maxHealth / 2 ? 8 : 4;
	self.damage = 1;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var BossFinalAttack = Container.expand(function () {
	var self = Container.call(this);
	var attackGraphics = self.attachAsset('bossFinalAttack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	attackGraphics.alpha = 0.4; // Semi-transparent red overlay covering entire screen
	self.damage = 1;
	self.lifeTime = 0;
	self.maxLifeTime = 60; // 1 second visible
	self.update = function () {
		self.lifeTime++;
		// Pulsing effect for entire screen coverage
		attackGraphics.alpha = 0.4 + Math.sin(self.lifeTime * 0.3) * 0.3;
	};
	return self;
});
var BossLaser = Container.expand(function () {
	var self = Container.call(this);
	var laserGraphics = self.attachAsset('bossLaser', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.damage = 1;
	self.lifeTime = 0;
	self.maxLifeTime = 600; // 10 seconds visible
	self.update = function () {
		self.lifeTime++;
		// Follow boss position horizontally
		self.x = boss.x;
		// Fade out effect in the last 3 seconds (180 frames)
		if (self.lifeTime >= self.maxLifeTime - 180) {
			var fadeProgress = (self.lifeTime - (self.maxLifeTime - 180)) / 180;
			laserGraphics.alpha = 0.7 * (1 - fadeProgress);
		} else {
			// Pulsing effect
			laserGraphics.alpha = 0.7 + Math.sin(self.lifeTime * 0.4) * 0.3;
		}
	};
	return self;
});
var BossSpecialAttack = Container.expand(function () {
	var self = Container.call(this);
	var attackGraphics = self.attachAsset('bossSpecialAttack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Speed increases in fast mode when boss health is low
	self.speed = boss && boss.health <= boss.maxHealth / 2 ? 12 : 6;
	self.damage = 1;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Game variables
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.maxHealth = 1;
	self.health = 1;
	self.attackDamage = 50;
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health < 0) self.health = 0;
		// Flash red when taking damage
		tween(playerGraphics, {
			tint: 0xff8888
		}, {
			duration: 100,
			onFinish: function onFinish() {
				tween(playerGraphics, {
					tint: 0xffffff
				}, {
					duration: 100
				});
			}
		});
	};
	self.attack = function () {
		return {
			x: self.x,
			y: self.y - 50,
			damage: self.attackDamage
		};
	};
	return self;
});
var PlayerAttack = Container.expand(function () {
	var self = Container.call(this);
	var attackGraphics = self.attachAsset('playerAttack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -24;
	self.damage = 50;
	self.update = function () {
		self.y += self.speed;
	};
	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() * 2 + 1; // Random speed between 1-3
	self.twinkleTime = 0;
	self.update = function () {
		self.y += self.speed;
		// Enhanced twinkling effect with random timing
		self.twinkleTime++;
		var twinkleIntensity = 0.4 + Math.sin(self.twinkleTime * (0.05 + Math.random() * 0.1)) * 0.3;
		starGraphics.alpha = Math.max(0.2, twinkleIntensity);
		// Add occasional bright flash
		if (Math.random() < 0.002) {
			tween(starGraphics, {
				alpha: 1.0,
				scaleX: 1.5,
				scaleY: 1.5
			}, {
				duration: 200,
				onFinish: function onFinish() {
					tween(starGraphics, {
						alpha: twinkleIntensity,
						scaleX: 1.0,
						scaleY: 1.0
					}, {
						duration: 300
					});
				}
			});
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
// Game state
var gameStarted = false;
var startScreen = null;
var startButton = null;
var titleText = null;
var instructionText = null;
var explanationScreen = null;
var showingExplanation = false;
// Boss assets
// Player assets
// Attack button
// Attack effects
// Sounds
var boss;
var player;
var playerAttacks = [];
var bossAttacks = [];
var bossSpecialAttacks = [];
var bossFinalAttacks = [];
var bossLasers = [];
var stars = [];
var startScreenStars = [];
var dragNode = null;
var playerLastX = 0;
var playerLastY = 0;
// Health bars
var bossHealthBarBg, bossHealthBar;
var playerHealthBarBg, playerHealthBar;
// Health text
var bossHealthText, playerHealthText;
// Create start screen
startScreen = game.addChild(new Container());
// Add immediate star burst effect
for (var burstIndex = 0; burstIndex < 20; burstIndex++) {
	var burstStar = new Star();
	burstStar.x = 1024 + (Math.random() - 0.5) * 400;
	burstStar.y = 1366 + (Math.random() - 0.5) * 400;
	burstStar.speed = Math.random() * 0.5 + 0.2;
	var burstGraphics = burstStar.children[0];
	burstGraphics.alpha = 0;
	burstGraphics.scaleX = 2;
	burstGraphics.scaleY = 2;
	// Animate burst effect
	tween(burstGraphics, {
		alpha: 1,
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 800 + Math.random() * 600,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			// Add extra twinkle after burst
			tween(burstGraphics, {
				alpha: 0.3,
				scaleX: 1.5,
				scaleY: 1.5
			}, {
				duration: 400,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					tween(burstGraphics, {
						alpha: 0.7,
						scaleX: 1,
						scaleY: 1
					}, {
						duration: 300,
						easing: tween.easeInOut
					});
				}
			});
		}
	});
	startScreenStars.push(burstStar);
	startScreen.addChild(burstStar);
}
// Create initial stars for start screen background
for (var starIndex = 0; starIndex < 50; starIndex++) {
	var startStar = new Star();
	startStar.x = Math.random() * 2048;
	startStar.y = Math.random() * 2732;
	startStar.speed = Math.random() * 1 + 0.5; // Slower speed for start screen
	// Add immediate twinkling effect with random timing
	startStar.twinkleTime = Math.random() * 100;
	// Add enhanced initial visibility with tween effect
	var starGraphics = startStar.children[0];
	starGraphics.alpha = 0;
	tween(starGraphics, {
		alpha: 0.6 + Math.random() * 0.4,
		scaleX: 0.8 + Math.random() * 0.4,
		scaleY: 0.8 + Math.random() * 0.4
	}, {
		duration: 500 + Math.random() * 1000,
		easing: tween.easeOut
	});
	startScreenStars.push(startStar);
	startScreen.addChild(startStar);
}
// Create title text
titleText = new Text2('Space Ranger', {
	size: 120,
	fill: 0xFFFF00
});
titleText.anchor.set(0.5, 0.5);
titleText.x = 1024;
titleText.y = 800;
startScreen.addChild(titleText);
// Create instruction text
instructionText = new Text2('Arrastra para moverte\nDerrota al jefe para ganar\n¡Ten cuidado con sus ataques!', {
	size: 60,
	fill: 0xFFFFFF
});
instructionText.anchor.set(0.5, 0.5);
instructionText.x = 1024;
instructionText.y = 1200;
startScreen.addChild(instructionText);
// Create start button
startButton = new Text2('JUGAR', {
	size: 100,
	fill: 0x00FF00
});
startButton.anchor.set(0.5, 0.5);
startButton.x = 900;
startButton.y = 1600;
startScreen.addChild(startButton);
// Create explanation button
var explanationButton = new Text2('?', {
	size: 100,
	fill: 0x4A90E2
});
explanationButton.anchor.set(0.5, 0.5);
explanationButton.x = 1148;
explanationButton.y = 1600;
startScreen.addChild(explanationButton);
// Add enhanced pulsing effect to start button with color changes and rotation
var _buttonPulse = function buttonPulse() {
	if (startButton && !gameStarted) {
		// First phase: scale up with color change to bright yellow and slight rotation
		tween(startButton, {
			scaleX: 1.4,
			scaleY: 1.4,
			tint: 0xFFFF00,
			rotation: 0.1
		}, {
			duration: 600,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				// Second phase: scale down with color change to bright green and rotation back
				tween(startButton, {
					scaleX: 1.0,
					scaleY: 1.0,
					tint: 0x00FF88,
					rotation: -0.05
				}, {
					duration: 400,
					easing: tween.easeIn,
					onFinish: function onFinish() {
						// Third phase: final color pulse back to original green
						tween(startButton, {
							tint: 0x00FF00,
							rotation: 0
						}, {
							duration: 300,
							easing: tween.easeInOut,
							onFinish: _buttonPulse
						});
					}
				});
			}
		});
	}
};
_buttonPulse();
// Add pulsing effect to explanation button
var _explanationPulse = function explanationPulse() {
	if (explanationButton && !gameStarted && !showingExplanation) {
		tween(explanationButton, {
			scaleX: 1.3,
			scaleY: 1.3,
			tint: 0x87CEEB
		}, {
			duration: 800,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(explanationButton, {
					scaleX: 1.0,
					scaleY: 1.0,
					tint: 0x4A90E2
				}, {
					duration: 600,
					easing: tween.easeIn,
					onFinish: _explanationPulse
				});
			}
		});
	}
};
_explanationPulse();
// Start button click handler
startButton.down = function (x, y, obj) {
	if (!gameStarted && !showingExplanation) {
		gameStarted = true;
		// Clean up start screen stars
		for (var cleanupIndex = startScreenStars.length - 1; cleanupIndex >= 0; cleanupIndex--) {
			startScreenStars[cleanupIndex].destroy();
		}
		startScreenStars = [];
		startScreen.destroy();
		initializeGame();
	}
};
// Explanation button click handler
explanationButton.down = function (x, y, obj) {
	if (!gameStarted && !showingExplanation) {
		showingExplanation = true;
		createExplanationScreen();
	}
};
// Function to create explanation screen
function createExplanationScreen() {
	explanationScreen = game.addChild(new Container());
	explanationScreen.alpha = 0;
	tween(explanationScreen, {
		alpha: 1
	}, {
		duration: 300
	});
	// Semi-transparent background
	var overlay = explanationScreen.addChild(LK.getAsset('bossFinalAttack', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	overlay.x = 1024;
	overlay.y = 1366;
	overlay.alpha = 0.8;
	overlay.tint = 0x000033;
	// Title
	var explanationTitle = new Text2('GUÍA DEL JUEGO', {
		size: 80,
		fill: 0xFFFF00
	});
	explanationTitle.anchor.set(0.5, 0.5);
	explanationTitle.x = 1024;
	explanationTitle.y = 400;
	explanationScreen.addChild(explanationTitle);
	// Game mechanics explanation
	var mechanicsText = new Text2('CONTROLES:\n• Arrastra para mover tu nave\n• Disparas automáticamente\n\nEL JEFE:\n• Tiene 10,000 puntos de vida\n• Se mueve por la pantalla\n• Tiene múltiples tipos de ataque', {
		size: 45,
		fill: 0xFFFFFF
	});
	mechanicsText.anchor.set(0.5, 0.5);
	mechanicsText.x = 1024;
	mechanicsText.y = 800;
	explanationScreen.addChild(mechanicsText);
	// Boss attacks explanation
	var attacksText = new Text2('ATAQUES DEL JEFE:\n\n• ATAQUE NORMAL: Proyectiles rojos (1 daño)\n• ATAQUE ESPECIAL: Proyectiles pequeños rápidos (1 daño)\n• ATAQUE LÁSER: Rayo vertical que te sigue (1 daño)\n• ATAQUE FINAL: Pantalla roja completa (1 daño)', {
		size: 40,
		fill: 0xFF8888
	});
	attacksText.anchor.set(0.5, 0.5);
	attacksText.x = 1024;
	attacksText.y = 1200;
	explanationScreen.addChild(attacksText);
	// Special mechanics
	var specialText = new Text2('MECÁNICAS ESPECIALES:\n\n• Cuando el jefe tiene ≤5000 vida: MODO RÁPIDO\n  - Ataques más frecuentes y rápidos\n  - Puede usar el ataque láser\n\n• Cuando el jefe tiene ≤1000 vida:\n  - Intenta el ATAQUE FINAL mortal\n  - ¡Dispárale para cancelarlo!', {
		size: 38,
		fill: 0x88FF88
	});
	specialText.anchor.set(0.5, 0.5);
	specialText.x = 1024;
	specialText.y = 1650;
	explanationScreen.addChild(specialText);
	// Victory condition
	var victoryText = new Text2('OBJETIVO: Reduce la vida del jefe a 0 para ganar\nSOBREVIVE: Tienes solo 1 punto de vida', {
		size: 42,
		fill: 0xFFD700
	});
	victoryText.anchor.set(0.5, 0.5);
	victoryText.x = 1024;
	victoryText.y = 2000;
	explanationScreen.addChild(victoryText);
	// Back button
	var backButton = new Text2('VOLVER', {
		size: 70,
		fill: 0xFF6666
	});
	backButton.anchor.set(0.5, 0.5);
	backButton.x = 1024;
	backButton.y = 2300;
	explanationScreen.addChild(backButton);
	// Back button animation
	var _backPulse = function backPulse() {
		if (backButton && showingExplanation) {
			tween(backButton, {
				scaleX: 1.2,
				scaleY: 1.2,
				tint: 0xFF8888
			}, {
				duration: 600,
				onFinish: function onFinish() {
					tween(backButton, {
						scaleX: 1.0,
						scaleY: 1.0,
						tint: 0xFF6666
					}, {
						duration: 400,
						onFinish: _backPulse
					});
				}
			});
		}
	};
	_backPulse();
	// Back button click handler
	backButton.down = function (x, y, obj) {
		if (showingExplanation) {
			tween(explanationScreen, {
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					explanationScreen.destroy();
					explanationScreen = null;
					showingExplanation = false;
				}
			});
		}
	};
}
// Function to initialize game elements
function initializeGame() {
	// Initialize boss
	boss = game.addChild(new Boss());
	boss.x = 1024;
	boss.y = 400;
	// Initialize player
	player = game.addChild(new Player());
	player.x = 1024;
	player.y = 2200;
	playerLastX = player.x;
	playerLastY = player.y;
	// Create boss health bar
	bossHealthBarBg = game.addChild(LK.getAsset('bossHealthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	bossHealthBarBg.x = 1024;
	bossHealthBarBg.y = 200;
	bossHealthBar = game.addChild(LK.getAsset('bossHealthBar', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	bossHealthBar.x = 1024;
	bossHealthBar.y = 200;
	// Create player health bar
	playerHealthBarBg = game.addChild(LK.getAsset('playerHealthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	playerHealthBarBg.x = 1024;
	playerHealthBarBg.y = 2500;
	playerHealthBar = game.addChild(LK.getAsset('playerHealthBar', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	playerHealthBar.x = 1024;
	playerHealthBar.y = 2500;
	// Create health text
	bossHealthText = new Text2('10000/10000', {
		size: 40,
		fill: 0xFFFFFF
	});
	bossHealthText.anchor.set(0.5, 0.5);
	bossHealthText.x = 1024;
	bossHealthText.y = 160;
	game.addChild(bossHealthText);
	playerHealthText = new Text2('1/1', {
		size: 30,
		fill: 0xFFFFFF
	});
	playerHealthText.anchor.set(0.5, 0.5);
	playerHealthText.x = 1024;
	playerHealthText.y = 2540;
	game.addChild(playerHealthText);
}
// Player movement
game.move = function (x, y, obj) {
	if (gameStarted && dragNode) {
		dragNode.x = x;
		dragNode.y = y;
		// Keep player within bounds
		if (dragNode.x < 50) dragNode.x = 50;
		if (dragNode.x > 1998) dragNode.x = 1998;
		if (dragNode.y < 800) dragNode.y = 800;
		if (dragNode.y > 2600) dragNode.y = 2600;
	}
};
game.down = function (x, y, obj) {
	if (gameStarted) {
		dragNode = player;
		game.move(x, y, obj);
	}
};
game.up = function (x, y, obj) {
	if (gameStarted) {
		dragNode = null;
	}
};
// Main game update loop
game.update = function () {
	// Only run game logic if game has started
	if (!gameStarted) {
		// Update start screen stars
		for (var startStarIndex = startScreenStars.length - 1; startStarIndex >= 0; startStarIndex--) {
			var startStar = startScreenStars[startStarIndex];
			// Remove if off screen
			if (startStar.y > 2780) {
				startStar.destroy();
				startScreenStars.splice(startStarIndex, 1);
			}
		}
		// Spawn new stars for start screen more frequently and consistently
		if (LK.ticks % 15 == 0 && Math.random() < 0.9) {
			var newStartStar = new Star();
			newStartStar.x = Math.random() * 2048;
			newStartStar.y = -10;
			newStartStar.speed = Math.random() * 1.5 + 0.8; // Slightly faster and more visible
			// Add immediate fade-in effect for new stars
			var newStarGraphics = newStartStar.children[0];
			newStarGraphics.alpha = 0;
			tween(newStarGraphics, {
				alpha: 0.5 + Math.random() * 0.5
			}, {
				duration: 300 + Math.random() * 500,
				easing: tween.easeOut
			});
			startScreenStars.push(newStartStar);
			startScreen.addChild(newStartStar);
		}
		return;
	}
	// Update player attacks
	for (var i = playerAttacks.length - 1; i >= 0; i--) {
		var attack = playerAttacks[i];
		// Check if attack hit boss
		if (attack.intersects(boss)) {
			boss.takeDamage(attack.damage);
			// Cancel final attack if boss is doing it
			if (boss.isFinalAttacking && !boss.finalAttackCanceled) {
				boss.cancelFinalAttack();
			}
			attack.destroy();
			playerAttacks.splice(i, 1);
			continue;
		}
		// Remove if off screen
		if (attack.y < -50) {
			attack.destroy();
			playerAttacks.splice(i, 1);
		}
	}
	// Update boss attacks
	for (var j = bossAttacks.length - 1; j >= 0; j--) {
		var bossAttack = bossAttacks[j];
		// Check if attack hit player
		if (bossAttack.intersects(player)) {
			player.takeDamage(bossAttack.damage);
			bossAttack.destroy();
			bossAttacks.splice(j, 1);
			continue;
		}
		// Remove if off screen
		if (bossAttack.y > 2780) {
			bossAttack.destroy();
			bossAttacks.splice(j, 1);
		}
	}
	// Update boss special attacks
	for (var k = bossSpecialAttacks.length - 1; k >= 0; k--) {
		var specialAttack = bossSpecialAttacks[k];
		// Check if special attack hit player
		if (specialAttack.intersects(player)) {
			player.takeDamage(specialAttack.damage);
			specialAttack.destroy();
			bossSpecialAttacks.splice(k, 1);
			continue;
		}
		// Remove if off screen
		if (specialAttack.y > 2780) {
			specialAttack.destroy();
			bossSpecialAttacks.splice(k, 1);
		}
	}
	// Player automatic attack - fast mode when health is half or below
	var attackInterval = player.health <= player.maxHealth / 2 ? 3 : 20; // Super fast when health <= 0.5
	if (LK.ticks % attackInterval == 0) {
		var attackData = player.attack();
		var newPlayerAttack = new PlayerAttack();
		newPlayerAttack.x = attackData.x;
		newPlayerAttack.y = attackData.y;
		playerAttacks.push(newPlayerAttack);
		game.addChild(newPlayerAttack);
	}
	// Update boss final attacks
	for (var l = bossFinalAttacks.length - 1; l >= 0; l--) {
		var finalAttack = bossFinalAttacks[l];
		// Check if final attack hit player (covers entire screen)
		if (finalAttack.intersects(player)) {
			player.takeDamage(finalAttack.damage);
		}
		// Remove after lifetime expires
		if (finalAttack.lifeTime >= finalAttack.maxLifeTime) {
			finalAttack.destroy();
			bossFinalAttacks.splice(l, 1);
		}
	}
	// Update boss laser attacks
	for (var m = bossLasers.length - 1; m >= 0; m--) {
		var laser = bossLasers[m];
		// Check if laser hit player AND player is moving
		var playerIsMoving = player.x !== playerLastX || player.y !== playerLastY;
		if (laser.intersects(player) && playerIsMoving) {
			player.takeDamage(laser.damage);
		}
		// Remove after lifetime expires
		if (laser.lifeTime >= laser.maxLifeTime) {
			laser.destroy();
			bossLasers.splice(m, 1);
		}
	}
	// Update and spawn stars
	for (var s = stars.length - 1; s >= 0; s--) {
		var star = stars[s];
		// Remove if off screen
		if (star.y > 2780) {
			star.destroy();
			stars.splice(s, 1);
		}
	}
	// Spawn new stars randomly
	if (LK.ticks % 15 == 0 && Math.random() < 0.7) {
		var newStar = new Star();
		newStar.x = Math.random() * 2048;
		newStar.y = -10;
		stars.push(newStar);
		game.addChild(newStar);
	}
	// Update player movement tracking
	playerLastX = player.x;
	playerLastY = player.y;
	// Boss attack logic
	var bossUpdateResult = boss.update();
	if (bossUpdateResult === true) {
		var attackData = boss.attack();
		var newBossAttack = new BossAttack();
		newBossAttack.x = attackData.x;
		newBossAttack.y = attackData.y;
		bossAttacks.push(newBossAttack);
		game.addChild(newBossAttack);
	} else if (bossUpdateResult === "special") {
		var specialAttackData = boss.specialAttack();
		var newSpecialAttack = new BossSpecialAttack();
		newSpecialAttack.x = specialAttackData.x;
		newSpecialAttack.y = specialAttackData.y;
		bossSpecialAttacks.push(newSpecialAttack);
		game.addChild(newSpecialAttack);
	} else if (bossUpdateResult === "finalAttack") {
		// Flash screen red to indicate final attack starting
		LK.effects.flashScreen(0xff0000, 500);
	} else if (bossUpdateResult === "finalAttackComplete") {
		// Create final attack that covers entire map/screen
		var finalAttackData = boss.finalAttack();
		var newFinalAttack = new BossFinalAttack();
		newFinalAttack.x = 1024; // Center horizontally to cover entire map width
		newFinalAttack.y = 1366; // Center vertically to cover entire map height
		bossFinalAttacks.push(newFinalAttack);
		game.addChild(newFinalAttack);
	} else if (bossUpdateResult === "laser") {
		// Create laser attack
		var laserAttackData = boss.laserAttack();
		var newLaser = new BossLaser();
		newLaser.x = laserAttackData.x;
		newLaser.y = laserAttackData.y;
		bossLasers.push(newLaser);
		game.addChild(newLaser);
	}
	// Update health bars
	var bossHealthPercent = boss.health / boss.maxHealth;
	bossHealthBar.scaleX = bossHealthPercent;
	var playerHealthPercent = player.health / player.maxHealth;
	playerHealthBar.scaleX = playerHealthPercent;
	// Update health text
	bossHealthText.setText(boss.health + '/' + boss.maxHealth);
	playerHealthText.setText(player.health + '/' + player.maxHealth);
	// Check win condition
	if (boss.health <= 0) {
		LK.showYouWin();
	}
	// Check lose condition
	if (player.health <= 0) {
		LK.showGameOver();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -398,10 +398,10 @@
 
 /**** 
 * Game Code
 ****/ 
-// Game state
 // Game variables
+// Game state
 var gameStarted = false;
 var startScreen = null;
 var startButton = null;
 var titleText = null;
@@ -837,10 +837,8 @@
 			});
 			startScreenStars.push(newStartStar);
 			startScreen.addChild(newStartStar);
 		}
-		// Play background music even on start screen
-		LK.playMusic('Music');
 		return;
 	}
 	// Update player attacks
 	for (var i = playerAttacks.length - 1; i >= 0; i--) {
@@ -998,10 +996,8 @@
 	// Check win condition
 	if (boss.health <= 0) {
 		LK.showYouWin();
 	}
-	// Play background music
-	LK.playMusic('Music');
 	// Check lose condition
 	if (player.health <= 0) {
 		LK.showGameOver();
 	}