/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	scoreboard: []
});

/**** 
* Classes
****/ 
// Beam item class
var BeamItem = Container.expand(function () {
	var self = Container.call(this);
	var beamSprite = self.attachAsset('beamItem', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	beamSprite.width = 90;
	beamSprite.height = 90;
	beamSprite.alpha = 0.95;
	self.update = function () {
		self.y += 12 * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
	};
	return self;
});
// Enemy type 1: moves straight down
var Enemy1 = Container.expand(function () {
	var self = Container.call(this);
	var enemySprite = self.attachAsset('enemy1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	enemySprite.width = 200;
	enemySprite.height = 200;
	self.speed = 8 + Math.random() * 4;
	self.update = function () {
		self.y += self.speed * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
	};
	return self;
});
// Enemy type 2: moves in sine wave
var Enemy2 = Container.expand(function () {
	var self = Container.call(this);
	var enemySprite = self.attachAsset('enemy2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	enemySprite.width = 160;
	enemySprite.height = 160;
	self.speed = 7 + Math.random() * 3;
	self.waveAmplitude = 120 + Math.random() * 80;
	self.waveSpeed = 0.02 + Math.random() * 0.01;
	self.baseX = 0;
	self.t = 0;
	self.update = function () {
		var speedMult = typeof gameSpeed !== "undefined" ? gameSpeed : 1;
		self.y += self.speed * speedMult;
		self.t += self.waveSpeed * speedMult;
		self.x = self.baseX + Math.sin(self.t * 6.28) * self.waveAmplitude;
	};
	return self;
});
// Strong Enemy3: needs 5 hits to die, moves straight down, larger and purple
var Enemy3 = Container.expand(function () {
	var self = Container.call(this);
	var enemySprite = self.attachAsset('enemy3', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	enemySprite.width = 260;
	enemySprite.height = 260;
	self.speed = 6 + Math.random() * 2;
	self.hp = 5;
	self.update = function () {
		self.y += self.speed * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
	};
	return self;
});
// Enemy4: new enemy type, moves diagonally, bounces off screen edges, explodes when near hero, needs 3 hits to die
var Enemy4 = Container.expand(function () {
	var self = Container.call(this);
	var enemySprite = self.attachAsset('Enemy4', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	enemySprite.width = 180;
	enemySprite.height = 180;
	self.speedX = (Math.random() < 0.5 ? 1 : -1) * (7 + Math.random() * 3);
	self.speedY = 7 + Math.random() * 3;
	self.exploded = false;
	self.hp = 3; // Needs 3 hits to die (3x Enemy1 hitpoints)
	self.turnSpeed = 0.03; // How fast Enemy4 turns toward hero
	self.currentAngle = Math.random() * Math.PI * 2; // Current movement direction
	self.speed = 12; // Movement speed
	self.update = function () {
		var speedMult = typeof gameSpeed !== "undefined" ? gameSpeed : 1;
		// Only move and turn if hero exists and Enemy4 is not exploded
		if (typeof hero !== "undefined" && !self.exploded) {
			// Calculate angle to hero for gradual turning
			var dx = hero.x - self.x;
			var dy = hero.y - self.y;
			var angleToHero = Math.atan2(dy, dx);
			// Gradually turn toward hero
			var angleDiff = angleToHero - self.currentAngle;
			// Normalize angle difference to [-PI, PI]
			while (angleDiff > Math.PI) angleDiff -= Math.PI * 2;
			while (angleDiff < -Math.PI) angleDiff += Math.PI * 2;
			// Turn gradually toward hero
			if (Math.abs(angleDiff) > self.turnSpeed * speedMult) {
				self.currentAngle += Math.sign(angleDiff) * self.turnSpeed * speedMult;
			} else {
				self.currentAngle = angleToHero;
			}
			// Move in current direction
			self.x += Math.cos(self.currentAngle) * self.speed * speedMult;
			self.y += Math.sin(self.currentAngle) * self.speed * speedMult;
		}
		// Check if Enemy4 reached middle of screen and explode
		var centerX = 2048 / 2;
		var centerY = 2732 / 2;
		var distanceToCenter = Math.sqrt((self.x - centerX) * (self.x - centerX) + (self.y - centerY) * (self.y - centerY));
		if (!self.exploded && distanceToCenter < 100) {
			self.exploded = true;
			// Flash explosion effect
			LK.effects.flashObject(self, 0xffffff, 120);
			// Throw 4 bullets around
			if (typeof enemyBullets !== "undefined" && typeof game !== "undefined") {
				for (var bulletDir = 0; bulletDir < 4; bulletDir++) {
					var bullet = new EnemyBullet();
					bullet.x = self.x;
					bullet.y = self.y;
					// 4 directions: up, right, down, left (90 degrees apart)
					var angle = bulletDir * Math.PI / 2;
					var speed = 20;
					bullet.speedX = Math.cos(angle) * speed;
					bullet.speedY = Math.sin(angle) * speed;
					enemyBullets.push(bullet);
					game.addChild(bullet);
				}
				LK.getSound('enemyShoot').play();
			}
			// Play explosion animation (particles)
			var particleCount = 16;
			for (var pi = 0; pi < particleCount; pi++) {
				var part = LK.getAsset('Enemy4', {
					anchorX: 0.5,
					anchorY: 0.5
				});
				part.x = self.x;
				part.y = self.y;
				part.width = 24 + Math.random() * 24;
				part.height = 24 + Math.random() * 24;
				part.alpha = 0.8 + Math.random() * 0.2;
				var angle = Math.PI * 2 * (pi / particleCount) + Math.random() * 0.2;
				var speed = 12 + Math.random() * 8;
				var vx = Math.cos(angle) * speed;
				var vy = Math.sin(angle) * speed;
				part.life = 10 + Math.floor(Math.random() * 10);
				part.update = function () {
					this.x += vx;
					this.y += vy;
					this.life--;
					this.alpha *= 0.88 + Math.random() * 0.06;
					if (this.life <= 0) {
						this.destroy();
					}
				};
				if (typeof game !== "undefined") {
					game.addChild(part);
				}
			}
			// Remove Enemy4 from game/enemies array on next update
			if (typeof self.destroy === "function") {
				self.destroy();
			}
			return;
		}
		// Enemy4 can fly through hero and try to collide - no special collision handling here
	};
	return self;
});
// Enemy bullet class
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletSprite = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = 0;
	self.speedY = 16;
	self.update = function () {
		var speedMult = typeof gameSpeed !== "undefined" ? gameSpeed : 1;
		self.x += self.speedX * speedMult;
		self.y += self.speedY * speedMult;
	};
	return self;
});
// Extraordinary EnemyX: spawns only once after 250 score, unique appearance and behavior
var EnemyX = Container.expand(function () {
	var self = Container.call(this);
	// Use dedicated enemyX asset
	var enemySprite = self.attachAsset('enemyX', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	enemySprite.width = 600;
	enemySprite.height = 600;
	enemySprite.alpha = 0.98;
	self.speed = 4 + Math.random() * 2;
	// Set EnemyX health to 500 in boss mode, 250 in normal mode
	self.hp = typeof bossMode !== "undefined" && bossMode ? 500 : 250; // much higher HP (500 hits required)
	// --- EnemyX shooting logic ---
	self.shootTick = 0;
	self.beamCooldown = 0;
	self.update = function () {
		// Boss mode: randomly drop health potion, shield, or beam items from EnemyX (less frequently)
		if (typeof bossMode !== "undefined" && bossMode && Math.random() < 0.005) {
			// 1/3 chance for each item
			var dropType = Math.floor(Math.random() * 3);
			var item;
			if (dropType === 0) {
				item = new HealthPotion();
			} else if (dropType === 1) {
				item = new ShieldItem();
			} else {
				item = new BeamItem();
			}
			item.x = self.x + (Math.random() - 0.5) * 120;
			item.y = self.y + 120;
			if (typeof items !== "undefined" && typeof game !== "undefined") {
				items.push(item);
				game.addChild(item);
			}
		}
		// Standard and god modes: EnemyX rarely drops a health potion
		if ((typeof bossMode === "undefined" || !bossMode) && (typeof scoreMode === "undefined" || !scoreMode) && (typeof godMode !== "undefined" && godMode || typeof godMode !== "undefined" && !godMode)) {
			if (Math.random() < 0.003) {
				// 0.3% chance per update (less frequent)
				var potion = new HealthPotion();
				potion.x = self.x + (Math.random() - 0.5) * 120;
				potion.y = self.y + 120;
				if (typeof items !== "undefined" && typeof game !== "undefined") {
					items.push(potion);
					game.addChild(potion);
				}
			}
		}
		// Only allow EnemyX to wander in the upper part of the screen (y between 0 and 500)
		if (typeof self.t === "undefined") {
			self.t = Math.random() * 2;
		}
		var speedMult = typeof gameSpeed !== "undefined" ? gameSpeed : 1;
		self.t += 0.012 * speedMult;
		// Sway left/right slowly
		self.x += Math.sin(self.t * 2.5) * 6 * speedMult;
		// Restrict vertical movement: only allow y to increase up to a certain limit, then bounce back up
		if (typeof self.directionY === "undefined") {
			self.directionY = 1;
		}
		// Set upper and lower bounds for wandering
		var upperY = 60 + enemySprite.height / 2;
		var lowerY = 420 + enemySprite.height / 2;
		// Move down or up depending on direction
		self.y += self.speed * self.directionY * 0.5 * speedMult; // much slower vertical movement
		// If reached lower bound, go up; if reached upper bound, go down
		if (self.y >= lowerY) {
			self.y = lowerY;
			self.directionY = -1;
		} else if (self.y <= upperY) {
			self.y = upperY;
			self.directionY = 1;
		}
		// --- Shooting less frequently ---
		self.shootTick = (self.shootTick || 0) + speedMult;
		self.beamCooldown = (self.beamCooldown || 0) - speedMult;
		// Shoot a bullet every 90-150 ticks (randomized, less frequent)
		if (self.shootTick >= 90 + Math.floor(Math.random() * 61)) {
			if (typeof game !== "undefined" && typeof hero !== "undefined") {
				// Shoot 3-way spread
				for (var i = -1; i <= 1; i++) {
					var bullet = new EnemyBullet();
					bullet.x = self.x + i * 60;
					bullet.y = self.y + 120;
					// Aim at hero, but with spread
					var dx = hero.x - bullet.x + i * 80;
					var dy = hero.y - bullet.y;
					var len = Math.sqrt(dx * dx + dy * dy);
					if (len > 0) {
						bullet.speedX = dx / len * 20;
						bullet.speedY = dy / len * 20;
					}
					enemyBullets.push(bullet);
					game.addChild(bullet);
					LK.getSound('enemyShoot').play();
				}
			}
			self.shootTick = 0;
		}
		// Check if laser beam is purchased before allowing automatic beam shooting
		var laserBeamPurchased = storage.laserBeamPurchased || false;
		// Sometimes shoot a beam down (every 360-540 ticks, much more rare, and only hit when visually active)
		if (laserBeamPurchased && self.beamCooldown <= 0 && Math.random() < 0.012) {
			if (typeof game !== "undefined") {
				// Visual: big vertical beam
				var beam = LK.getAsset('beamItem', {
					anchorX: 0.5,
					anchorY: 0,
					x: self.x,
					y: self.y + enemySprite.height / 2
				});
				beam.width = 120;
				beam.height = 2732 - (self.y + enemySprite.height / 2);
				beam.alpha = 0.38 + Math.random() * 0.12;
				game.addChild(beam);
				// Beam effect: damage hero if in column for 60 frames, but only on first 20 frames is it "active"
				beam.life = 60;
				beam.activeFrames = 20;
				beam.update = function () {
					this.life--;
					// Flicker effect
					this.alpha = 0.32 + Math.random() * 0.18;
					// Only hit hero if beam is visually active (first 20 frames)
					if (this.life > 60 - this.activeFrames) {
						if (typeof hero !== "undefined" && hero.y > this.y && hero.y < this.y + this.height) {
							if (Math.abs(hero.x - this.x) < this.width / 2 + hero.width / 2) {
								if (!godMode && !shieldActive && this.life === 60 - this.activeFrames + 1) {
									LK.getSound('heroHit').play();
									LK.effects.flashScreen(0xff0000, 800);
									heroHealth--;
									updateHealthBar();
									updateDemoHealthSquares && updateDemoHealthSquares();
									if (heroHealth <= 0) {
										LK.getSound('Death').play();
										// Return to main menu instead of game over
										returnToMainMenu();
										return;
									}
								} else if (!godMode && shieldActive && this.life === 60 - this.activeFrames + 1) {
									LK.effects.flashObject(hero, 0x00ffff, 200);
								}
							}
						}
					}
					if (this.life <= 0) {
						this.destroy();
					}
				};
				// Add to enemyBullets for update/removal
				enemyBullets.push(beam);
				// Play laser sound
				LK.getSound('laser').play();
				// Set cooldown for next beam (much more rare)
				self.beamCooldown = 360 + Math.floor(Math.random() * 180);
			}
		}
	};
	return self;
});
// EnemyZ: New boss type, appears as a large, fast, zig-zagging boss with high HP and double beam attack
var EnemyZ = Container.expand(function () {
	var self = Container.call(this);
	// Use enemyZ asset, large size
	var enemySprite = self.attachAsset('EnemyZ', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	enemySprite.width = 520;
	enemySprite.height = 520;
	enemySprite.alpha = 0.99;
	self.speed = 10 + Math.random() * 3;
	self.hp = typeof bossMode !== "undefined" && bossMode ? 800 : 500; // EnemyZ health: 800 in boss mode, 500 in normal mode
	self.t = Math.random() * 2;
	self.zigzagAmplitude = 320 + Math.random() * 80;
	self.zigzagSpeed = 0.018 + Math.random() * 0.008;
	self.baseX = 2048 / 2;
	self.directionY = 1;
	self.shootTick = 0;
	self.beamCooldown = 0;
	self.update = function () {
		// Zig-zag movement, stays in upper half of screen
		var speedMult = typeof gameSpeed !== "undefined" ? gameSpeed : 1;
		self.t += self.zigzagSpeed * speedMult;
		self.x = self.baseX + Math.sin(self.t * 2.5) * self.zigzagAmplitude;
		// Restrict vertical movement: only allow y to increase up to a certain limit, then bounce back up
		var upperY = 80 + enemySprite.height / 2;
		var lowerY = 600 + enemySprite.height / 2;
		self.y += self.speed * self.directionY * 0.5 * speedMult;
		if (self.y >= lowerY) {
			self.y = lowerY;
			self.directionY = -1;
		} else if (self.y <= upperY) {
			self.y = upperY;
			self.directionY = 1;
		}
		// Boss mode: randomly drop health potion, shield, or beam items from EnemyZ (less frequently)
		if (typeof bossMode !== "undefined" && bossMode && Math.random() < 0.005) {
			// 1/3 chance for each item
			var dropType = Math.floor(Math.random() * 3);
			var item;
			if (dropType === 0) {
				item = new HealthPotion();
			} else if (dropType === 1) {
				item = new ShieldItem();
			} else {
				item = new BeamItem();
			}
			item.x = self.x + (Math.random() - 0.5) * 120;
			item.y = self.y + 120;
			if (typeof items !== "undefined" && typeof game !== "undefined") {
				items.push(item);
				game.addChild(item);
			}
		}
		// Standard and god modes: EnemyZ rarely drops a health potion
		if ((typeof bossMode === "undefined" || !bossMode) && (typeof scoreMode === "undefined" || !scoreMode) && (typeof godMode !== "undefined" && godMode || typeof godMode !== "undefined" && !godMode)) {
			if (Math.random() < 0.003) {
				// 0.3% chance per update (less frequent)
				var potion = new HealthPotion();
				potion.x = self.x + (Math.random() - 0.5) * 120;
				potion.y = self.y + 120;
				if (typeof items !== "undefined" && typeof game !== "undefined") {
					items.push(potion);
					game.addChild(potion);
				}
			}
		}
		// --- Shooting logic: fires 5-way spread every 48-72 ticks ---
		self.shootTick = (self.shootTick || 0) + speedMult;
		self.beamCooldown = (self.beamCooldown || 0) - speedMult;
		if (self.shootTick >= 72 + Math.floor(Math.random() * 49)) {
			if (typeof game !== "undefined" && typeof hero !== "undefined") {
				// Shoot 5-way spread
				for (var i = -2; i <= 2; i++) {
					var bullet = new EnemyBullet();
					bullet.x = self.x + i * 60;
					bullet.y = self.y + 120;
					// Aim at hero, but with spread
					var dx = hero.x - bullet.x + i * 60;
					var dy = hero.y - bullet.y;
					var len = Math.sqrt(dx * dx + dy * dy);
					if (len > 0) {
						bullet.speedX = dx / len * 22;
						bullet.speedY = dy / len * 22;
					}
					enemyBullets.push(bullet);
					game.addChild(bullet);
					LK.getSound('enemyShoot').play();
				}
			}
			self.shootTick = 0;
		}
		// --- Single explosive attack: one explosive bullet at once, more frequent than EnemyX ---
		if (self.beamCooldown <= 0 && Math.random() < 0.025) {
			if (typeof game !== "undefined") {
				// Fire one explosive bullet at hero
				var explosive = new EnemyBullet();
				explosive.x = self.x;
				explosive.y = self.y + 120;
				// Aim at hero
				var dx = hero.x - explosive.x;
				var dy = hero.y - explosive.y;
				var len = Math.sqrt(dx * dx + dy * dy);
				if (len > 0) {
					explosive.speedX = dx / len * 25;
					explosive.speedY = dy / len * 25;
				}
				// Make explosive bullets larger and more visible
				explosive.children[0].width = 60;
				explosive.children[0].height = 60;
				explosive.children[0].tint = 0xff4400; // Orange tint for explosive look
				// Add explosive properties
				explosive.isExplosive = true;
				explosive.explosionTimer = 12; // 0.2 seconds until explosion (12 ticks at 60fps)
				explosive.hasExploded = false;
				explosive.explosionRadius = 200; // Area damage radius
				enemyBullets.push(explosive);
				game.addChild(explosive);
				LK.getSound('enemyShoot').play();
				// Set cooldown for next explosive (more frequent than EnemyX)
				self.beamCooldown = 180 + Math.floor(Math.random() * 90);
			}
		}
	};
	return self;
});
// Great Shield Orb class - spinning shields around hero
var GreatShieldOrb = Container.expand(function () {
	var self = Container.call(this);
	var shieldSprite = self.attachAsset('GreatShield', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	shieldSprite.width = 180;
	shieldSprite.height = 180;
	shieldSprite.alpha = 0.9;
	self.angle = 0;
	self.radius = 280;
	self.rotationSpeed = 0.04;
	self.update = function () {
		// Update rotation angle
		self.angle += self.rotationSpeed * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
		// Position around hero
		if (typeof hero !== "undefined") {
			self.x = hero.x + Math.cos(self.angle) * self.radius;
			self.y = hero.y + Math.sin(self.angle) * self.radius;
			// Make the bottom of the shield always point toward opposite of hero center
			// Calculate angle from shield to hero
			var dx = hero.x - self.x;
			var dy = hero.y - self.y;
			var angleToHero = Math.atan2(dy, dx);
			// Set shield rotation to point away from hero (add PI to reverse direction, plus PI/2 to make bottom point outward)
			shieldSprite.rotation = angleToHero + Math.PI + Math.PI / 2;
			// Update shield hitbox to match larger visual size
			self.width = 180;
			self.height = 180;
		}
		// Remove self-rotation to prevent spinning around itself
		// shieldSprite.rotation += 0.08 * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
	};
	return self;
});
// Health potion class (separate asset)
var HealthPotion = Container.expand(function () {
	var self = Container.call(this);
	var potionSprite = self.attachAsset('healthPotion', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	potionSprite.width = 90;
	potionSprite.height = 90;
	potionSprite.alpha = 0.95;
	self.update = function () {
		self.y += 16 * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
	};
	return self;
});
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroSprite = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = heroSprite.width / 2;
	self.shootCooldown = 0;
	self.update = function () {
		if (self.shootCooldown > 0) {
			self.shootCooldown--;
		}
	};
	return self;
});
// Hero bullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletSprite = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -32;
	self.update = function () {
		self.y += self.speed * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
	};
	return self;
});
// Laser Ball class for beam button ability
var LaserBall = Container.expand(function () {
	var self = Container.call(this);
	var ballSprite = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	ballSprite.width = 60;
	ballSprite.height = 150;
	ballSprite.tint = 0xffaa00; // Orange color
	self.speed = 28;
	self.targetEnemy = null;
	self.rotationSpeed = 0.08;
	self.killCount = 0; // Track how many enemies this ball has killed
	self.maxKills = 2; // Allow 2 kills before disappearing
	self.update = function () {
		var speedMult = typeof gameSpeed !== "undefined" ? gameSpeed : 1;
		// Find nearest enemy if we don't have a target or target is destroyed
		if (!self.targetEnemy || !self.targetEnemy.parent) {
			var nearestDistance = Infinity;
			self.targetEnemy = null;
			for (var i = 0; i < enemies.length; i++) {
				var enemy = enemies[i];
				var dx = enemy.x - self.x;
				var dy = enemy.y - self.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance < nearestDistance) {
					nearestDistance = distance;
					self.targetEnemy = enemy;
				}
			}
		}
		// Rotate towards target enemy
		if (self.targetEnemy) {
			var dx = self.targetEnemy.x - self.x;
			var dy = self.targetEnemy.y - self.y;
			var targetAngle = Math.atan2(dy, dx) + Math.PI / 2; // Add 90 degrees since bullet points up
			var currentAngle = self.rotation;
			// Calculate shortest rotation path
			var angleDiff = targetAngle - currentAngle;
			while (angleDiff > Math.PI) angleDiff -= Math.PI * 2;
			while (angleDiff < -Math.PI) angleDiff += Math.PI * 2;
			// Rotate towards target
			if (Math.abs(angleDiff) > 0.1) {
				self.rotation += Math.sign(angleDiff) * self.rotationSpeed * speedMult;
			} else {
				self.rotation = targetAngle;
			}
		}
		// Move forward in current direction
		self.x += Math.sin(self.rotation) * self.speed * speedMult;
		self.y -= Math.cos(self.rotation) * self.speed * speedMult;
	};
	return self;
});
// Shield item class
var ShieldItem = Container.expand(function () {
	var self = Container.call(this);
	var shieldSprite = self.attachAsset('shieldItem', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	shieldSprite.width = 90;
	shieldSprite.height = 90;
	shieldSprite.alpha = 0.95; // Make it much brighter/less transparent
	self.update = function () {
		self.y += 12 * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x181818
});

/**** 
* Game Code
****/ 
//Minimalistic tween library which should be used for animations over time, including tinting / colouring an object, scaling, rotating, or changing any game object property.
// Add 6 healthbar assets to the screen (for demo/test, not for health UI)
function _typeof(o) {
	"@babel/helpers - typeof";
	return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
		return typeof o;
	} : function (o) {
		return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
	}, _typeof(o);
}
var greenSquares = [];
// (defer adding to game until after background is added)
for (var i = 0; i < 6; i++) {
	var square = LK.getAsset('Healthbar', {
		anchorX: 0,
		anchorY: 1,
		x: 60 + i * 70,
		y: 2732 - 60,
		width: 60,
		height: 60,
		tint: 0x44ff44
	});
	greenSquares.push(square);
}
// Helper to update demo health squares to match heroHealth
function updateDemoHealthSquares() {
	for (var i = 0; i < greenSquares.length; i++) {
		if (i < heroHealth) {
			greenSquares[i].visible = true;
		} else {
			greenSquares[i].visible = false;
		}
	}
}
// separate asset for health potion
// Play menu music and stop background music when menu is shown
// --- MENU OVERLAY ---
// Add menu asset as background in menu, and background asset in game
var menuBgSprite = LK.getAsset('Menu', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
menuBgSprite.width = 2048;
menuBgSprite.height = 2732;
game.addChild(menuBgSprite);
var backgroundSprite = LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
// Scale background to fill the screen (2048x2732)
var bgOriginalWidth = backgroundSprite.width;
var bgOriginalHeight = backgroundSprite.height;
var scaleX = 2048 / bgOriginalWidth;
var scaleY = 2732 / bgOriginalHeight;
var scale = Math.max(scaleX, scaleY); // cover entire area
backgroundSprite.width = bgOriginalWidth * scale;
backgroundSprite.height = bgOriginalHeight * scale;
// Center if needed (in case aspect ratio doesn't match)
backgroundSprite.x = (2048 - backgroundSprite.width) / 2;
backgroundSprite.y = (2732 - backgroundSprite.height) / 2;
backgroundSprite.visible = false; // Only show in game, not in menu
game.addChild(backgroundSprite);
// Add green squares after background so they are in front
for (var i = 0; i < greenSquares.length; i++) {
	greenSquares[i].visible = false; // Hide in menu
	game.addChild(greenSquares[i]);
}
LK.stopMusic();
LK.playMusic('Menu');
var menuOverlay = new Container();
menuOverlay.zIndex = 10000; // ensure on top
// Title text
var titleTxt = new Text2("GALAXY DODGE SHOOTER", {
	size: 160,
	fill: "#fff",
	fontWeight: "bold"
});
titleTxt.anchor.set(0.5, 0);
titleTxt.x = 2048 / 2;
titleTxt.y = 220;
menuOverlay.addChild(titleTxt);
// Play button background
var playBtnBg = LK.getAsset('Button', {
	anchorX: 0.5,
	anchorY: 0.5
});
playBtnBg.width = 600;
playBtnBg.height = 220;
playBtnBg.alpha = 0.7;
playBtnBg.x = 2048 / 2;
playBtnBg.y = 700;
menuOverlay.addChild(playBtnBg);
// Play button text
var playBtn = new Text2("PLAY", {
	size: 140,
	fill: 0x00EAFF,
	fontWeight: "bold"
});
playBtn.anchor.set(0.5, 0.5);
playBtn.x = 2048 / 2;
playBtn.y = 700;
menuOverlay.addChild(playBtn);
// Game mode variables
var godMode = false;
var bossMode = false;
var scoreMode = false;
// Add music toggle button to menu  
var musicOn = true;
// Place music button below play button (with margin)
var musicBtnBg = LK.getAsset('Button', {
	anchorX: 0.5,
	anchorY: 0.5
});
musicBtnBg.width = 340;
musicBtnBg.height = 140;
musicBtnBg.alpha = 0.7;
musicBtnBg.x = 2048 / 2;
musicBtnBg.y = 700 + 220 / 2 + 60 + musicBtnBg.height / 2; // below playBtnBg
menuOverlay.addChild(musicBtnBg);
var musicBtn = new Text2("MUSIC: ON", {
	size: 80,
	fill: 0x00EAFF,
	fontWeight: "bold"
});
musicBtn.anchor.set(0.5, 0.5);
musicBtn.x = 2048 / 2;
musicBtn.y = musicBtnBg.y;
menuOverlay.addChild(musicBtn);
// Add help button below music button
var helpBtnBg = LK.getAsset('Button', {
	anchorX: 0.5,
	anchorY: 0.5
});
helpBtnBg.width = 340;
helpBtnBg.height = 140;
helpBtnBg.alpha = 0.7;
helpBtnBg.x = 2048 / 2;
helpBtnBg.y = musicBtnBg.y + musicBtnBg.height / 2 + 60 + helpBtnBg.height / 2;
menuOverlay.addChild(helpBtnBg);
var helpBtn = new Text2("HELP", {
	size: 80,
	fill: 0x00EAFF,
	fontWeight: "bold"
});
helpBtn.anchor.set(0.5, 0.5);
helpBtn.x = 2048 / 2;
helpBtn.y = helpBtnBg.y;
menuOverlay.addChild(helpBtn);
// Add shop button below help button
var shopBtnBg = LK.getAsset('Button', {
	anchorX: 0.5,
	anchorY: 0.5
});
shopBtnBg.width = 340;
shopBtnBg.height = 140;
shopBtnBg.alpha = 0.7;
shopBtnBg.x = 2048 / 2;
shopBtnBg.y = helpBtnBg.y + helpBtnBg.height / 2 + 60 + shopBtnBg.height / 2;
menuOverlay.addChild(shopBtnBg);
var shopBtn = new Text2("SHOP", {
	size: 80,
	fill: 0x00EAFF,
	fontWeight: "bold"
});
shopBtn.anchor.set(0.5, 0.5);
shopBtn.x = 2048 / 2;
shopBtn.y = shopBtnBg.y;
menuOverlay.addChild(shopBtn);
// Add scoreboard to right bottom (quarter of screen size)
var scoreboardBg = LK.getAsset('Scoreboard', {
	anchorX: 1,
	anchorY: 1,
	x: 2048 - 60,
	y: 2732 - 60,
	width: 512,
	height: 683
});
scoreboardBg.alpha = 0.9;
menuOverlay.addChild(scoreboardBg);
// Scoreboard entries container
var scoreboardContainer = new Container();
scoreboardContainer.x = scoreboardBg.x - scoreboardBg.width + 30;
scoreboardContainer.y = scoreboardBg.y - scoreboardBg.height + 80;
menuOverlay.addChild(scoreboardContainer);
// Function to refresh scoreboard display
function refreshScoreboard() {
	// Clear existing entries
	while (scoreboardContainer.children.length > 0) {
		scoreboardContainer.removeChild(scoreboardContainer.children[0]);
	}
	// Get scoreboard data and sort by score (highest first)
	var scoreboard = storage.scoreboard || [];
	scoreboard.sort(function (a, b) {
		return b.score - a.score;
	});
	// Show top 8 entries
	var maxEntries = Math.min(8, scoreboard.length);
	var entrySpacing = 70;
	for (var i = 0; i < maxEntries; i++) {
		var entry = scoreboard[i];
		var entryY = i * entrySpacing;
		// Rank number
		var rankText = new Text2(i + 1 + ".", {
			size: 45,
			fill: "#fff",
			fontWeight: "bold"
		});
		rankText.anchor.set(0, 0);
		rankText.x = 20;
		rankText.y = entryY;
		scoreboardContainer.addChild(rankText);
		// Player name
		var nameText = new Text2(entry.name.substring(0, 8), {
			size: 45,
			fill: 0x00EAFF
		});
		nameText.anchor.set(0, 0);
		nameText.x = 80;
		nameText.y = entryY;
		scoreboardContainer.addChild(nameText);
		// Score
		var scoreText = new Text2(entry.score.toString(), {
			size: 45,
			fill: 0xFFD700,
			fontWeight: "bold"
		});
		scoreText.anchor.set(1, 0);
		scoreText.x = 450;
		scoreText.y = entryY;
		scoreboardContainer.addChild(scoreText);
	}
}
// Initial scoreboard display
refreshScoreboard();
// --- MODE SELECTION MENU ---
var modeSelectionOverlay = null;
function showModeSelection() {
	if (modeSelectionOverlay && modeSelectionOverlay.visible) {
		return;
	}
	if (modeSelectionOverlay) {
		modeSelectionOverlay.visible = true;
		return;
	}
	modeSelectionOverlay = new Container();
	modeSelectionOverlay.zIndex = 15000; // between menu and help
	// Mode selection background using menu asset
	var bg = LK.getAsset('Menu', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	bg.width = 2048;
	bg.height = 2732;
	bg.alpha = 0.95;
	modeSelectionOverlay.addChild(bg);
	// Mode selection title
	var modeTitle = new Text2("SELECT GAME MODE", {
		size: 140,
		fill: "#fff",
		fontWeight: "bold"
	});
	modeTitle.anchor.set(0.5, 0);
	modeTitle.x = 2048 / 2;
	modeTitle.y = 400;
	modeSelectionOverlay.addChild(modeTitle);
	// Standard Mode Button
	var standardBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	standardBtnBg.width = 600;
	standardBtnBg.height = 220;
	standardBtnBg.alpha = 0.7;
	standardBtnBg.x = 2048 / 2;
	standardBtnBg.y = 800;
	modeSelectionOverlay.addChild(standardBtnBg);
	var standardBtn = new Text2("STANDARD MODE", {
		size: 90,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	standardBtn.anchor.set(0.5, 0.5);
	standardBtn.x = 2048 / 2;
	standardBtn.y = 800;
	modeSelectionOverlay.addChild(standardBtn);
	// God Mode Button
	var godBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	godBtnBg.width = 600;
	godBtnBg.height = 220;
	godBtnBg.alpha = 0.7;
	godBtnBg.x = 2048 / 2;
	godBtnBg.y = 1100;
	modeSelectionOverlay.addChild(godBtnBg);
	var godBtn = new Text2("GOD MODE", {
		size: 100,
		fill: 0xffd700,
		fontWeight: "bold"
	});
	godBtn.anchor.set(0.5, 0.5);
	godBtn.x = 2048 / 2;
	godBtn.y = 1100;
	modeSelectionOverlay.addChild(godBtn);
	// Boss Mode Button
	var bossBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bossBtnBg.width = 600;
	bossBtnBg.height = 220;
	bossBtnBg.alpha = 0.7;
	bossBtnBg.x = 2048 / 2;
	bossBtnBg.y = 1400;
	modeSelectionOverlay.addChild(bossBtnBg);
	var bossBtn = new Text2("BOSS MODE", {
		size: 100,
		fill: 0xff4444,
		fontWeight: "bold"
	});
	bossBtn.anchor.set(0.5, 0.5);
	bossBtn.x = 2048 / 2;
	bossBtn.y = 1400;
	modeSelectionOverlay.addChild(bossBtn);
	// Score Mode Button
	var scoreBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	scoreBtnBg.width = 600;
	scoreBtnBg.height = 220;
	scoreBtnBg.alpha = 0.7;
	scoreBtnBg.x = 2048 / 2;
	scoreBtnBg.y = 1700;
	modeSelectionOverlay.addChild(scoreBtnBg);
	var scoreBtn = new Text2("SCORE MODE", {
		size: 100,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	scoreBtn.anchor.set(0.5, 0.5);
	scoreBtn.x = 2048 / 2;
	scoreBtn.y = 1700;
	modeSelectionOverlay.addChild(scoreBtn);
	// Back button
	var backBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	backBtnBg.width = 340;
	backBtnBg.height = 140;
	backBtnBg.alpha = 0.7;
	backBtnBg.x = 2048 / 2;
	backBtnBg.y = 2000;
	modeSelectionOverlay.addChild(backBtnBg);
	var backBtn = new Text2("BACK", {
		size: 80,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	backBtn.anchor.set(0.5, 0.5);
	backBtn.x = 2048 / 2;
	backBtn.y = 2000;
	modeSelectionOverlay.addChild(backBtn);
	// Mode selection interactions
	modeSelectionOverlay.down = function (x, y, obj) {
		// Standard Mode
		var dx = x - standardBtn.x;
		var dy = y - standardBtn.y;
		if (Math.abs(dx) <= standardBtnBg.width / 2 && Math.abs(dy) <= standardBtnBg.height / 2) {
			// Start standard mode
			modeSelectionOverlay.visible = false;
			menuOverlay.visible = false;
			menuActive = false;
			godMode = false;
			bossMode = false;
			scoreMode = false;
			if (typeof menuBgSprite !== "undefined") {
				menuBgSprite.visible = false;
			}
			if (typeof backgroundSprite !== "undefined") {
				backgroundSprite.visible = true;
			}
			// Show UI elements
			healthBarBg.visible = true;
			healthBar.visible = true;
			for (var i = 0; i < healthBarVSquares.length; i++) {
				healthBarVSquares[i].visible = true;
			}
			ultiBtn.visible = true;
			ultiBtn.bg.visible = true;
			// Show wave button only if solar wave is purchased
			var solarWavePurchased = storage.solarWavePurchased || false;
			if (solarWavePurchased) {
				waveBtn.visible = true;
				waveBtn.bg.visible = true;
			}
			// Show beam button only if laser beam is purchased
			var laserBeamPurchased = storage.laserBeamPurchased || false;
			if (laserBeamPurchased) {
				beamBtn.visible = true;
				beamBtn.bg.visible = true;
			}
			hero.visible = true;
			for (var i = 0; i < greenSquares.length; i++) {
				greenSquares[i].visible = true;
			}
			LK.stopMusic();
			if (musicOn) {
				LK.playMusic('bgmusic');
			}
			return;
		}
		// God Mode
		var gdx = x - godBtn.x;
		var gdy = y - godBtn.y;
		if (Math.abs(gdx) <= godBtnBg.width / 2 && Math.abs(gdy) <= godBtnBg.height / 2) {
			// Start god mode
			modeSelectionOverlay.visible = false;
			menuOverlay.visible = false;
			menuActive = false;
			godMode = true;
			bossMode = false;
			scoreMode = false;
			if (typeof menuBgSprite !== "undefined") {
				menuBgSprite.visible = false;
			}
			if (typeof backgroundSprite !== "undefined") {
				backgroundSprite.visible = true;
			}
			// Show UI elements
			healthBarBg.visible = true;
			healthBar.visible = true;
			for (var i = 0; i < healthBarVSquares.length; i++) {
				healthBarVSquares[i].visible = true;
			}
			ultiBtn.visible = true;
			ultiBtn.bg.visible = true;
			// Show wave button only if solar wave is purchased
			var solarWavePurchased = storage.solarWavePurchased || false;
			if (solarWavePurchased) {
				waveBtn.visible = true;
				waveBtn.bg.visible = true;
			}
			// Show beam button only if laser beam is purchased
			var laserBeamPurchased = storage.laserBeamPurchased || false;
			if (laserBeamPurchased) {
				beamBtn.visible = true;
				beamBtn.bg.visible = true;
			}
			hero.visible = true;
			for (var i = 0; i < greenSquares.length; i++) {
				greenSquares[i].visible = true;
			}
			LK.stopMusic();
			if (musicOn) {
				LK.playMusic('Godmode');
			}
			return;
		}
		// Boss Mode
		var bdx = x - bossBtn.x;
		var bdy = y - bossBtn.y;
		if (Math.abs(bdx) <= bossBtnBg.width / 2 && Math.abs(bdy) <= bossBtnBg.height / 2) {
			// Start boss mode
			modeSelectionOverlay.visible = false;
			menuOverlay.visible = false;
			menuActive = false;
			godMode = false;
			bossMode = true;
			scoreMode = false;
			if (typeof menuBgSprite !== "undefined") {
				menuBgSprite.visible = false;
			}
			if (typeof backgroundSprite !== "undefined") {
				backgroundSprite.visible = true;
			}
			// Show UI elements
			healthBarBg.visible = true;
			healthBar.visible = true;
			for (var i = 0; i < healthBarVSquares.length; i++) {
				healthBarVSquares[i].visible = true;
			}
			ultiBtn.visible = true;
			ultiBtn.bg.visible = true;
			// Show wave button only if solar wave is purchased
			var solarWavePurchased = storage.solarWavePurchased || false;
			if (solarWavePurchased) {
				waveBtn.visible = true;
				waveBtn.bg.visible = true;
			}
			// Show beam button only if laser beam is purchased
			var laserBeamPurchased = storage.laserBeamPurchased || false;
			if (laserBeamPurchased) {
				beamBtn.visible = true;
				beamBtn.bg.visible = true;
			}
			hero.visible = true;
			for (var i = 0; i < greenSquares.length; i++) {
				greenSquares[i].visible = true;
			}
			LK.stopMusic();
			if (musicOn) {
				LK.playMusic('Boss');
			}
			// Set up for boss mode: reset score, enemyXSpawned, etc.
			score = 0;
			scoreTxt.setText(score);
			enemyXSpawned = false;
			bossMusicPlayed = true; // already playing
			spawnTick = 0;
			return;
		}
		// Score Mode
		var sdx = x - scoreBtn.x;
		var sdy = y - scoreBtn.y;
		if (Math.abs(sdx) <= scoreBtnBg.width / 2 && Math.abs(sdy) <= scoreBtnBg.height / 2) {
			// Start score mode
			modeSelectionOverlay.visible = false;
			menuOverlay.visible = false;
			menuActive = false;
			godMode = false;
			bossMode = false;
			scoreMode = true;
			if (typeof menuBgSprite !== "undefined") {
				menuBgSprite.visible = false;
			}
			if (typeof backgroundSprite !== "undefined") {
				backgroundSprite.visible = true;
			}
			// Show UI elements
			healthBarBg.visible = true;
			healthBar.visible = true;
			for (var i = 0; i < healthBarVSquares.length; i++) {
				healthBarVSquares[i].visible = true;
			}
			ultiBtn.visible = true;
			ultiBtn.bg.visible = true;
			// Show wave button only if solar wave is purchased
			var solarWavePurchased = storage.solarWavePurchased || false;
			if (solarWavePurchased) {
				waveBtn.visible = true;
				waveBtn.bg.visible = true;
			}
			// Show beam button only if laser beam is purchased
			var laserBeamPurchased = storage.laserBeamPurchased || false;
			if (laserBeamPurchased) {
				beamBtn.visible = true;
				beamBtn.bg.visible = true;
			}
			hero.visible = true;
			for (var i = 0; i < greenSquares.length; i++) {
				greenSquares[i].visible = true;
			}
			LK.stopMusic();
			if (musicOn) {
				LK.playMusic('Scoremode');
			}
			return;
		}
		// Back button
		var backDx = x - backBtn.x;
		var backDy = y - backBtn.y;
		if (Math.abs(backDx) <= backBtnBg.width / 2 && Math.abs(backDy) <= backBtnBg.height / 2) {
			modeSelectionOverlay.visible = false;
			return;
		}
	};
	game.addChild(modeSelectionOverlay);
}
// Add menu overlay to game
game.addChild(menuOverlay);
// --- HELP MENU POPUP ---
var helpMenuOverlay = null;
function showHelpMenu() {
	if (helpMenuOverlay && helpMenuOverlay.visible) {
		return;
	}
	if (helpMenuOverlay) {
		helpMenuOverlay.visible = true;
		return;
	}
	helpMenuOverlay = new Container();
	helpMenuOverlay.zIndex = 20000;
	// Help menu background using helpbackground asset
	var bg = LK.getAsset('Helpbackground', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	bg.width = 2048;
	bg.height = 2732;
	bg.alpha = 1.0;
	helpMenuOverlay.addChild(bg);
	// Help title
	var helpTitle = new Text2("HELP", {
		size: 120,
		fill: "#fff",
		fontWeight: "bold"
	});
	helpTitle.anchor.set(0.5, 0);
	helpTitle.x = 2048 / 2;
	helpTitle.y = 320;
	helpMenuOverlay.addChild(helpTitle);
	// --- PAGE SYSTEM ---
	var helpPage = 0; // 0 = enemies, 1 = items
	// Enemy types info for help menu
	var enemyTypes = [{
		asset: 'enemy1',
		name: 'Enemy 1',
		desc: 'Standard enemy. Moves straight down. Easy to destroy.'
	}, {
		asset: 'enemy2',
		name: 'Enemy 2',
		desc: 'Sine-wave enemy. Moves in a wavy pattern. Harder to hit.'
	}, {
		asset: 'enemy3',
		name: 'Enemy 3',
		desc: 'Strong enemy. Takes 5 hits to destroy. Large and slow.'
	}, {
		asset: 'Enemy4',
		name: 'Enemy 4',
		desc: 'Diagonal bouncer. Moves diagonally, bounces off edges, and explodes when near the hero!'
	}, {
		asset: 'enemyX',
		name: 'Boss Enemy X',
		desc: 'Boss enemy. Appears after 250 score or in Boss Mode. Very tough!'
	}, {
		asset: 'EnemyZ',
		name: 'Boss Enemy Z',
		desc: 'Boss enemy. Zig-zags, shoots double beams, and is very fast!'
	}];
	// Item types info for help menu
	var itemTypes = [{
		asset: 'healthPotion',
		name: 'Health Potion',
		desc: 'Restores 1 health. Pick up to heal. If at max health, does nothing.'
	}, {
		asset: 'shieldItem',
		name: 'Shield',
		desc: 'Grants a shield for 6 seconds if at max health. Absorbs one hit from enemies or bullets.'
	}, {
		asset: 'beamItem',
		name: 'Beam Powerup',
		desc: 'Enables triple-shot for a short time. Fires 3 bullets in a spread.'
	}];
	// --- CONTAINER FOR PAGE CONTENT ---
	var pageContent = new Container();
	helpMenuOverlay.addChild(pageContent);
	// --- RENDER PAGE FUNCTION ---
	function renderHelpPage() {
		// Remove all children from pageContent
		while (pageContent.children.length > 0) {
			pageContent.removeChild(pageContent.children[0]);
		}
		// Title
		helpTitle.setText(helpPage === 0 ? "HELP" : "ITEMS");
		// Layout: vertical list, left-aligned for both image and text
		var startY = 500;
		var spacingY = 340;
		var leftMargin = 220;
		var imageTextGap = 40;
		var data = helpPage === 0 ? enemyTypes : itemTypes;
		for (var i = 0; i < data.length; i++) {
			var et = data[i];
			// Image
			var img = LK.getAsset(et.asset, {
				anchorX: 0,
				anchorY: 0,
				x: leftMargin,
				y: startY + i * spacingY,
				width: et.asset === 'enemyX' ? 180 : 120,
				height: et.asset === 'enemyX' ? 180 : 120
			});
			pageContent.addChild(img);
			// Name
			var nameTxt = new Text2(et.name, {
				size: 80,
				fill: "#fff",
				fontWeight: "bold"
			});
			nameTxt.anchor.set(0, 0);
			nameTxt.x = leftMargin + (et.asset === 'enemyX' ? 180 : 120) + imageTextGap;
			nameTxt.y = startY + i * spacingY + 10;
			pageContent.addChild(nameTxt);
			// Description
			var descTxt = new Text2(et.desc, {
				size: 60,
				fill: "#fff",
				align: "left"
			});
			descTxt.anchor.set(0, 0);
			descTxt.x = leftMargin + (et.asset === 'enemyX' ? 180 : 120) + imageTextGap;
			descTxt.y = startY + i * spacingY + 100;
			pageContent.addChild(descTxt);
		}
	}
	renderHelpPage();
	// --- PAGE NAVIGATION BUTTONS ---
	// Place under the last description text
	// Compute button Y based on number of entries in current help page
	var numEntries = helpPage === 0 ? enemyTypes.length : itemTypes.length;
	var lastDescY = 500 + (numEntries - 1) * 340 + 100 + 120; // 100 for desc offset, 120 for some margin
	// Close button (centered, first so it's under others visually)
	var closeBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	closeBtnBg.width = 340;
	closeBtnBg.height = 140;
	closeBtnBg.alpha = 0.7;
	closeBtnBg.x = 2048 / 2;
	closeBtnBg.y = lastDescY;
	helpMenuOverlay.addChild(closeBtnBg);
	var closeBtn = new Text2("CLOSE", {
		size: 80,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	closeBtn.anchor.set(0.5, 0.5);
	closeBtn.x = 2048 / 2;
	closeBtn.y = lastDescY;
	helpMenuOverlay.addChild(closeBtn);
	// Items button (right)
	var nextBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	nextBtnBg.width = 340;
	nextBtnBg.height = 140;
	nextBtnBg.alpha = 0.7;
	nextBtnBg.x = 2048 / 2 + 400;
	nextBtnBg.y = lastDescY;
	helpMenuOverlay.addChild(nextBtnBg);
	var nextBtn = new Text2("ITEMS", {
		size: 60,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	nextBtn.anchor.set(0.5, 0.5);
	nextBtn.x = nextBtnBg.x;
	nextBtn.y = nextBtnBg.y;
	helpMenuOverlay.addChild(nextBtn);
	// Enemies button (left)
	var prevBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	prevBtnBg.width = 340;
	prevBtnBg.height = 140;
	prevBtnBg.alpha = 0.7;
	prevBtnBg.x = 2048 / 2 - 400;
	prevBtnBg.y = lastDescY;
	helpMenuOverlay.addChild(prevBtnBg);
	var prevBtn = new Text2("ENEMIES", {
		size: 60,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	prevBtn.anchor.set(0.5, 0.5);
	prevBtn.x = prevBtnBg.x;
	prevBtn.y = prevBtnBg.y;
	helpMenuOverlay.addChild(prevBtn);
	// Dismiss help menu on close button press, and handle page navigation
	helpMenuOverlay.down = function (x, y, obj) {
		// Close
		var dx = x - closeBtn.x;
		var dy = y - closeBtn.y;
		if (Math.abs(dx) <= closeBtnBg.width / 2 && Math.abs(dy) <= closeBtnBg.height / 2) {
			helpMenuOverlay.visible = false;
			return;
		}
		// Prev (ENEMIES)
		var pdx = x - prevBtn.x;
		var pdy = y - prevBtn.y;
		if (Math.abs(pdx) <= prevBtnBg.width / 2 && Math.abs(pdy) <= prevBtnBg.height / 2) {
			if (helpPage !== 0) {
				helpPage = 0;
				renderHelpPage();
			}
			return;
		}
		// Next (ITEMS)
		var ndx = x - nextBtn.x;
		var ndy = y - nextBtn.y;
		if (Math.abs(ndx) <= nextBtnBg.width / 2 && Math.abs(ndy) <= nextBtnBg.height / 2) {
			if (helpPage !== 1) {
				helpPage = 1;
				renderHelpPage();
			}
			return;
		}
	};
	game.addChild(helpMenuOverlay);
}
// --- SHOP MENU POPUP ---
var shopMenuOverlay = null;
function showShopMenu() {
	if (shopMenuOverlay && shopMenuOverlay.visible) {
		return;
	}
	if (shopMenuOverlay) {
		shopMenuOverlay.visible = true;
		return;
	}
	shopMenuOverlay = new Container();
	shopMenuOverlay.zIndex = 20000;
	// Shop menu background
	var bg = LK.getAsset('Helpbackground', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	bg.width = 2048;
	bg.height = 2732;
	bg.alpha = 1.0;
	shopMenuOverlay.addChild(bg);
	// Shop title
	var shopTitle = new Text2("SHOP", {
		size: 120,
		fill: "#fff",
		fontWeight: "bold"
	});
	shopTitle.anchor.set(0.5, 0);
	shopTitle.x = 2048 / 2;
	shopTitle.y = 320;
	shopMenuOverlay.addChild(shopTitle);
	// Display coins
	var shopCoinsText = new Text2('Coins: ' + coins, {
		size: 80,
		fill: 0xFFD700
	});
	shopCoinsText.anchor.set(0.5, 0);
	shopCoinsText.x = 2048 / 2;
	shopCoinsText.y = 450;
	shopMenuOverlay.addChild(shopCoinsText);
	// Shop items display
	var startY = 700;
	var spacingY = 420;
	var shopItemElements = [];
	for (var i = 0; i < shopItems.length; i++) {
		var item = shopItems[i];
		var itemY = startY + i * spacingY;
		// Item background
		var itemBg = LK.getAsset('Button', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		itemBg.width = 1200;
		itemBg.height = 300;
		itemBg.alpha = item.purchased ? 0.3 : 0.7;
		itemBg.x = 2048 / 2;
		itemBg.y = itemY;
		shopMenuOverlay.addChild(itemBg);
		// Item name
		var itemName = new Text2(item.name, {
			size: 110,
			fill: item.purchased ? 0x44ff44 : "#fff",
			fontWeight: "bold"
		});
		itemName.anchor.set(0.5, 0);
		itemName.x = 2048 / 2;
		itemName.y = itemY - 100;
		shopMenuOverlay.addChild(itemName);
		// Item description
		var itemDesc = new Text2(item.description, {
			size: 75,
			fill: item.purchased ? 0xaaaaaa : "#fff"
		});
		itemDesc.anchor.set(0.5, 0);
		itemDesc.x = 2048 / 2;
		itemDesc.y = itemY - 20;
		shopMenuOverlay.addChild(itemDesc);
		// Price/Status text
		var priceText = new Text2(item.purchased ? "PURCHASED" : item.price + " Coins", {
			size: 85,
			fill: item.purchased ? 0x44ff44 : coins >= item.price ? 0xFFD700 : 0xff4444,
			fontWeight: "bold"
		});
		priceText.anchor.set(0.5, 0);
		priceText.x = 2048 / 2;
		priceText.y = itemY + 60;
		shopMenuOverlay.addChild(priceText);
		shopItemElements.push({
			bg: itemBg,
			item: item,
			index: i,
			nameText: itemName,
			priceText: priceText
		});
	}
	// Code button (bottom right)
	var codeBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	codeBtnBg.width = 200;
	codeBtnBg.height = 140;
	codeBtnBg.alpha = 0.7;
	codeBtnBg.x = 2048 - 150;
	codeBtnBg.y = 2500;
	shopMenuOverlay.addChild(codeBtnBg);
	var codeBtn = new Text2("CODE", {
		size: 70,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	codeBtn.anchor.set(0.5, 0.5);
	codeBtn.x = 2048 - 150;
	codeBtn.y = 2500;
	shopMenuOverlay.addChild(codeBtn);
	// Close button
	var closeShopBtnBg = LK.getAsset('Button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	closeShopBtnBg.width = 340;
	closeShopBtnBg.height = 140;
	closeShopBtnBg.alpha = 0.7;
	closeShopBtnBg.x = 2048 / 2;
	closeShopBtnBg.y = 2500;
	shopMenuOverlay.addChild(closeShopBtnBg);
	var closeShopBtn = new Text2("CLOSE", {
		size: 80,
		fill: 0x00EAFF,
		fontWeight: "bold"
	});
	closeShopBtn.anchor.set(0.5, 0.5);
	closeShopBtn.x = 2048 / 2;
	closeShopBtn.y = 2500;
	shopMenuOverlay.addChild(closeShopBtn);
	// Shop menu interaction
	shopMenuOverlay.down = function (x, y, obj) {
		// Code button
		var codeDx = x - codeBtn.x;
		var codeDy = y - codeBtn.y;
		if (Math.abs(codeDx) <= codeBtnBg.width / 2 && Math.abs(codeDy) <= codeBtnBg.height / 2) {
			showCodeInput();
			return;
		}
		// Close button
		var dx = x - closeShopBtn.x;
		var dy = y - closeShopBtn.y;
		if (Math.abs(dx) <= closeShopBtnBg.width / 2 && Math.abs(dy) <= closeShopBtnBg.height / 2) {
			shopMenuOverlay.visible = false;
			return;
		}
		// Shop item clicks
		for (var i = 0; i < shopItemElements.length; i++) {
			var element = shopItemElements[i];
			var itemDx = x - element.bg.x;
			var itemDy = y - element.bg.y;
			if (Math.abs(itemDx) <= 600 && Math.abs(itemDy) <= element.bg.height / 2) {
				var item = element.item;
				if (!item.purchased && coins >= item.price) {
					// Purchase item
					coins -= item.price;
					storage.coins = coins;
					item.purchased = true;
					// Update storage
					if (i === 0) storage.laserBeamPurchased = true;else if (i === 1) storage.solarWavePurchased = true;else if (i === 2) storage.greatShieldPurchased = true;
					// Update display
					coinsTxt.setText('Coins: ' + coins);
					shopCoinsText.setText('Coins: ' + coins);
					element.nameText.fill = 0x44ff44;
					element.priceText.setText("PURCHASED");
					element.priceText.fill = 0x44ff44;
					// Update other items' price colors
					for (var j = 0; j < shopItemElements.length; j++) {
						if (j !== i && !shopItemElements[j].item.purchased) {
							shopItemElements[j].priceText.fill = coins >= shopItemElements[j].item.price ? 0xFFD700 : 0xff4444;
						}
					}
				}
				return;
			}
		}
	};
	game.addChild(shopMenuOverlay);
}
// Menu state
var menuActive = true;
// Play button interaction
menuOverlay.down = function (x, y, obj) {
	// Check if play button was pressed - show mode selection
	var dx = x - playBtn.x;
	var dy = y - playBtn.y;
	if (Math.abs(dx) <= playBtnBg.width / 2 && Math.abs(dy) <= playBtnBg.height / 2) {
		// Show mode selection menu
		showModeSelection();
		return;
	}
	// Check if music button was pressed
	var mdx = x - musicBtn.x;
	var mdy = y - musicBtn.y;
	if (Math.abs(mdx) <= musicBtnBg.width / 2 && Math.abs(mdy) <= musicBtnBg.height / 2) {
		musicOn = !musicOn;
		if (musicOn) {
			musicBtn.setText("MUSIC: ON");
			LK.playMusic('Menu');
		} else {
			musicBtn.setText("MUSIC: OFF");
			LK.stopMusic();
		}
		return;
	}
	// Check if help button was pressed
	if (typeof helpBtn !== "undefined" && typeof helpBtnBg !== "undefined") {
		var hdx = x - helpBtn.x;
		var hdy = y - helpBtn.y;
		if (Math.abs(hdx) <= helpBtnBg.width / 2 && Math.abs(hdy) <= helpBtnBg.height / 2) {
			// Show help popup (custom help menu)
			showHelpMenu();
			return;
		}
	}
	// Check if shop button was pressed
	if (typeof shopBtn !== "undefined" && typeof shopBtnBg !== "undefined") {
		var sdx = x - shopBtn.x;
		var sdy = y - shopBtn.y;
		if (Math.abs(sdx) <= shopBtnBg.width / 2 && Math.abs(sdy) <= shopBtnBg.height / 2) {
			// Show shop menu
			showShopMenu();
			return;
		}
	}
};
menuOverlay.move = function (x, y, obj) {};
menuOverlay.up = function (x, y, obj) {};
// Score display
var scoreTxt = new Text2('0', {
	size: 120,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Coins display in top right corner
var coins = storage.coins || 0;
var coinsTxt = new Text2('Coins: ' + coins, {
	size: 80,
	fill: 0xFFD700
});
coinsTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(coinsTxt);
// Shop items data
var shopItems = [{
	name: "Laser Cannon",
	price: 500,
	purchased: storage.laserBeamPurchased || false,
	description: "Powerful cannon that fires laser balls in sequence"
}, {
	name: "Solar Wave",
	price: 750,
	purchased: storage.solarWavePurchased || false,
	description: "Powerful wave attack"
}, {
	name: "Great Shield",
	price: 1000,
	purchased: storage.greatShieldPurchased || false,
	description: "Enhanced shield protection"
}];
// Health bar UI (horizontal, left bottom)
var maxHealth = 6;
var heroHealth = maxHealth;
var healthBarBg = LK.getAsset('enemy2', {
	anchorX: 0,
	// left edge
	anchorY: 1,
	// bottom edge
	tint: 0x222222
});
healthBarBg.width = 420;
healthBarBg.height = 60;
healthBarBg.alpha = 0.45;
// Place at left bottom, with margin (60px from left, 60px from bottom)
healthBarBg.x = 60;
healthBarBg.y = 2732 - 60;
healthBarBg.visible = false; // Hide in menu
LK.gui.bottomLeft.addChild(healthBarBg);
var healthBar = LK.getAsset('enemy1', {
	anchorX: 0,
	// left edge
	anchorY: 1,
	// bottom edge
	tint: 0xff4444
});
healthBar.width = 420;
healthBar.height = 60;
healthBar.alpha = 0.85;
healthBar.x = 60;
healthBar.y = 2732 - 60;
healthBar.visible = false; // Hide in menu
LK.gui.bottomLeft.addChild(healthBar);
// --- Health bar squares (vertical, left bottom) ---
var healthBarVSquares = [];
var squareSpacing = 12;
var squareSize = 60;
var baseX = 60;
var baseY = 2732 - 60;
for (var i = 0; i < maxHealth; i++) {
	var square = LK.getAsset('Healthbar', {
		anchorX: 0,
		anchorY: 1,
		x: baseX + i * (squareSize + squareSpacing),
		y: baseY,
		width: squareSize,
		height: squareSize,
		tint: 0x44ff44
	});
	square.visible = false; // Hide in menu
	LK.gui.bottomLeft.addChild(square);
	healthBarVSquares.push(square);
}
function updateHealthBar() {
	// Hide all health bar elements if in main menu
	if (typeof menuActive !== "undefined" && menuActive) {
		healthBarBg.visible = false;
		healthBar.visible = false;
		for (var i = 0; i < healthBarVSquares.length; i++) {
			healthBarVSquares[i].visible = false;
		}
		return;
	}
	// Horizontal bar (left)
	healthBar.width = 420 * (heroHealth / maxHealth);
	if (heroHealth <= 2) {
		healthBar.tint = 0xff2222;
	} else if (heroHealth <= 4) {
		healthBar.tint = 0xffbb22;
	} else {
		healthBar.tint = 0x44ff44;
	}
	// Vertical bar (center) - show/hide squares and tint by health
	for (var i = 0; i < healthBarVSquares.length; i++) {
		if (i < heroHealth) {
			healthBarVSquares[i].visible = true;
			// Tint by health: green if >4, yellow if 3-4, red if 1-2
			if (heroHealth <= 2) {
				healthBarVSquares[i].tint = 0xff2222;
			} else if (heroHealth <= 4) {
				healthBarVSquares[i].tint = 0xffbb22;
			} else {
				healthBarVSquares[i].tint = 0x44ff44;
			}
			// Add a white border highlight if health is full
			healthBarVSquares[i].alpha = heroHealth === maxHealth ? 1.0 : 0.95;
		} else {
			healthBarVSquares[i].visible = false;
		}
	}
}
updateDemoHealthSquares && updateDemoHealthSquares();
// Function to return to main menu and restart game
function returnToMainMenu() {
	// Stop all music (including gameover music)
	LK.stopMusic();
	// Reset all game variables to initial state
	heroHealth = maxHealth;
	score = 0;
	spawnTick = 0;
	enemyXSpawned = false;
	enemyZSpawned = false;
	enemyXKilledAfter250 = false;
	bossMusicPlayed = false;
	lastCoinScore = 0;
	ultiReady = true;
	ultiCooldown = 0;
	laserReady = true;
	laserCooldown = 0;
	waveButtonReady = true;
	waveButtonCooldown = 0;
	beamButtonReady = true;
	beamButtonCooldown = 0;
	shieldActive = false;
	shieldTimer = 0;
	beamActive = false;
	beamTimer = 0;
	gameSpeed = 1.0;
	if (typeof spawnRateBoostActive !== "undefined") {
		spawnRateBoostActive = false;
		spawnRateBoostTimer = 0;
		nextBoostScore = 50;
	}
	if (typeof bossNextToSpawn !== "undefined") {
		bossNextToSpawn = "X";
	}
	// Reset great shield system
	greatShields = [];
	greatShieldActive = false;
	greatShieldSpawnTimer = 0;
	greatShieldRespawnTimer = 0;
	greatShieldGameStarted = false;
	// Clear all game objects
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		heroBullets[i].destroy();
		heroBullets.splice(i, 1);
	}
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].destroy();
		enemies.splice(i, 1);
	}
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		enemyBullets[i].destroy();
		enemyBullets.splice(i, 1);
	}
	for (var i = items.length - 1; i >= 0; i--) {
		items[i].destroy();
		items.splice(i, 1);
	}
	// Hide active laser beam if exists
	if (game.activeLaserBeam) {
		game.activeLaserBeam.destroy();
		game.activeLaserBeam = null;
		game.activeLaserBeamTimer = 0;
	}
	// Reset hero position
	hero.x = 2048 / 2;
	hero.y = 2732 - 350;
	hero.visible = false;
	// Reset score display
	scoreTxt.setText('0');
	// Update health display
	updateHealthBar();
	updateDemoHealthSquares && updateDemoHealthSquares();
	// Hide all game UI elements
	healthBarBg.visible = false;
	healthBar.visible = false;
	for (var i = 0; i < healthBarVSquares.length; i++) {
		healthBarVSquares[i].visible = false;
	}
	ultiBtn.visible = false;
	ultiBtn.bg.visible = false;
	ultiBtnOverlay.visible = false;
	waveBtn.visible = false;
	waveBtn.bg.visible = false;
	waveBtnOverlay.visible = false;
	beamBtn.visible = false;
	beamBtn.bg.visible = false;
	beamBtnOverlay.visible = false;
	for (var i = 0; i < greenSquares.length; i++) {
		greenSquares[i].visible = false;
	}
	// Hide game background and show menu
	if (typeof backgroundSprite !== "undefined") {
		backgroundSprite.visible = false;
	}
	if (typeof menuBgSprite !== "undefined") {
		menuBgSprite.visible = true;
	}
	// Reset game modes
	godMode = false;
	bossMode = false;
	scoreMode = false;
	// Reset gameover music flag for new game
	gameoverMusicPlayed = false;
	// Show menu overlay and activate menu state
	menuOverlay.visible = true;
	menuActive = true;
	// Hide mode selection if visible
	if (modeSelectionOverlay) {
		modeSelectionOverlay.visible = false;
	}
	// Hide help menu if visible
	if (helpMenuOverlay) {
		helpMenuOverlay.visible = false;
	}
	// Hide shop menu if visible
	if (shopMenuOverlay) {
		shopMenuOverlay.visible = false;
	}
	// Hide nickname prompt if visible
	if (game.nicknamePromptOverlay) {
		game.nicknamePromptOverlay.visible = false;
	}
	// Update speed controller visibility
	updateSpeedController();
	// Play menu music
	if (musicOn) {
		LK.playMusic('Menu');
	}
}
// Custom nickname prompt overlay for score mode game over
function showNicknamePrompt(callback) {
	// Prevent multiple prompts
	if (game.nicknamePromptOverlay && game.nicknamePromptOverlay.visible) {
		return;
	}
	var overlay = new Container();
	overlay.zIndex = 99999;
	// Semi-transparent background
	var bg = LK.getAsset('Menu', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	bg.width = 2048;
	bg.height = 2732;
	bg.alpha = 0.92;
	overlay.addChild(bg);
	// Title
	var title = new Text2("GAME OVER!", {
		size: 120,
		fill: "#fff",
		fontWeight: "bold"
	});
	title.anchor.set(0.5, 0);
	title.x = 2048 / 2;
	title.y = 400;
	overlay.addChild(title);
	// Prompt text
	var prompt = new Text2("Enter your nickname:", {
		size: 80,
		fill: "#fff"
	});
	prompt.anchor.set(0.5, 0);
	prompt.x = 2048 / 2;
	prompt.y = 600;
	overlay.addChild(prompt);
	// Nickname input (simulate with text and +/- buttons)
	var nickname = "";
	var maxLen = 12;
	var nicknameText = new Text2("_", {
		size: 100,
		fill: 0x00EAFF
	});
	nicknameText.anchor.set(0.5, 0.5);
	nicknameText.x = 2048 / 2;
	nicknameText.y = 800;
	overlay.addChild(nicknameText);
	// On-screen keyboard (QWERTY layout: 3 rows + 1 row for numbers, backspace, OK)
	var qwertyRows = [["Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P"], ["A", "S", "D", "F", "G", "H", "J", "K", "L"], ["Z", "X", "C", "V", "B", "N", "M"], ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"], ["<", "OK"]];
	var keyButtons = [];
	var keySize = 120;
	var keySpacing = 18;
	var startY = 1000;
	for (var row = 0; row < qwertyRows.length; row++) {
		var keysInRow = qwertyRows[row];
		// Calculate row width for centering
		var rowWidth = keysInRow.length * keySize + (keysInRow.length - 1) * keySpacing;
		var startX = 2048 / 2 - rowWidth / 2 + keySize / 2;
		var y = startY + row * (keySize + keySpacing);
		for (var col = 0; col < keysInRow.length; col++) {
			var key = keysInRow[col];
			var keyBg = LK.getAsset('Button', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			keyBg.width = keySize;
			keyBg.height = keySize;
			keyBg.alpha = 0.7;
			keyBg.x = startX + col * (keySize + keySpacing);
			keyBg.y = y;
			overlay.addChild(keyBg);
			var keyTxt = new Text2(key, {
				size: 60,
				fill: "#fff",
				fontWeight: "bold"
			});
			keyTxt.anchor.set(0.5, 0.5);
			keyTxt.x = keyBg.x;
			keyTxt.y = keyBg.y;
			overlay.addChild(keyTxt);
			keyButtons.push({
				bg: keyBg,
				txt: keyTxt,
				key: key
			});
		}
	}
	// Button interaction
	overlay.down = function (x, y, obj) {
		for (var i = 0; i < keyButtons.length; i++) {
			var btn = keyButtons[i];
			var dx = x - btn.bg.x;
			var dy = y - btn.bg.y;
			if (Math.abs(dx) <= btn.bg.width / 2 && Math.abs(dy) <= btn.bg.height / 2) {
				if (btn.key === "OK") {
					// Accept nickname
					var finalNickname = nickname.length > 0 ? nickname : "Player";
					// Add to scoreboard if in score mode
					if (scoreMode) {
						var scoreboard = storage.scoreboard || [];
						scoreboard.push({
							name: finalNickname,
							score: score
						});
						// Keep only top 20 scores
						scoreboard.sort(function (a, b) {
							return b.score - a.score;
						});
						if (scoreboard.length > 20) {
							scoreboard = scoreboard.slice(0, 20);
						}
						storage.scoreboard = scoreboard;
						// Refresh scoreboard display
						refreshScoreboard();
					}
					// Stop scoremode music and play gameover music if in score mode (only once)
					if (scoreMode && !gameoverMusicPlayed) {
						LK.stopMusic();
						if (musicOn) {
							LK.playMusic('Gameover');
							gameoverMusicPlayed = true;
						}
					}
					overlay.visible = false;
					if (typeof callback === "function") {
						callback(finalNickname);
					}
					if (game.nicknamePromptOverlay) {
						game.removeChild(game.nicknamePromptOverlay);
						game.nicknamePromptOverlay = null;
					}
					return;
				} else if (btn.key === "<") {
					// Backspace
					if (nickname.length > 0) {
						nickname = nickname.substring(0, nickname.length - 1);
						nicknameText.setText(nickname.length > 0 ? nickname : "_");
					}
				} else {
					// Add character
					if (nickname.length < maxLen) {
						nickname += btn.key;
						nicknameText.setText(nickname);
					}
				}
				break;
			}
		}
	};
	// Add overlay to game and track
	game.addChild(overlay);
	game.nicknamePromptOverlay = overlay;
}
// Game variables
var gameoverMusicPlayed = false; // Track if gameover music has been played for current game over
var hero = new Hero();
game.addChild(hero);
hero.x = 2048 / 2;
hero.y = 2732 - 350;
hero.visible = false; // Hide in menu
// Great Shield system variables
var greatShields = [];
var greatShieldActive = false;
var greatShieldSpawnTimer = 0;
var greatShieldRespawnTimer = 0;
var greatShieldGameStarted = false;
// Game speed controller (only visible in god mode)
var gameSpeed = 1.0; // Default speed multiplier
var speedControllerVisible = false;
// Speed controller UI elements - positioned on left side and made vertical
var speedControllerBg = LK.getAsset('Button', {
	anchorX: 0.5,
	anchorY: 0.5
});
speedControllerBg.width = 180;
speedControllerBg.height = 600;
speedControllerBg.alpha = 0.8;
speedControllerBg.x = 200;
speedControllerBg.y = 500;
speedControllerBg.visible = false;
game.addChild(speedControllerBg);
var speedControllerLabel = new Text2("1.0x", {
	size: 90,
	fill: "#fff",
	fontWeight: "bold"
});
speedControllerLabel.anchor.set(0.5, 0.5);
speedControllerLabel.x = 200;
speedControllerLabel.y = 450;
speedControllerLabel.visible = false;
game.addChild(speedControllerLabel);
// Speed decrease button
var speedDecreaseBtn = LK.getAsset('Button', {
	anchorX: 0.5,
	anchorY: 0.5
});
speedDecreaseBtn.width = 120;
speedDecreaseBtn.height = 120;
speedDecreaseBtn.alpha = 0.7;
speedDecreaseBtn.x = 200;
speedDecreaseBtn.y = 500 + 180;
speedDecreaseBtn.visible = false;
game.addChild(speedDecreaseBtn);
var speedDecreaseTxt = new Text2("-", {
	size: 120,
	fill: "#fff",
	fontWeight: "bold"
});
speedDecreaseTxt.anchor.set(0.5, 0.5);
speedDecreaseTxt.x = speedDecreaseBtn.x;
speedDecreaseTxt.y = speedDecreaseBtn.y;
speedDecreaseTxt.visible = false;
game.addChild(speedDecreaseTxt);
// Speed increase button
var speedIncreaseBtn = LK.getAsset('Button', {
	anchorX: 0.5,
	anchorY: 0.5
});
speedIncreaseBtn.width = 120;
speedIncreaseBtn.height = 120;
speedIncreaseBtn.alpha = 0.7;
speedIncreaseBtn.x = 200;
speedIncreaseBtn.y = 500 - 180;
speedIncreaseBtn.visible = false;
game.addChild(speedIncreaseBtn);
var speedIncreaseTxt = new Text2("+", {
	size: 120,
	fill: "#fff",
	fontWeight: "bold"
});
speedIncreaseTxt.anchor.set(0.5, 0.5);
speedIncreaseTxt.x = speedIncreaseBtn.x;
speedIncreaseTxt.y = speedIncreaseBtn.y;
speedIncreaseTxt.visible = false;
game.addChild(speedIncreaseTxt);
// Function to update speed controller display
function updateSpeedController() {
	var visible = godMode && !menuActive;
	speedControllerBg.visible = visible;
	speedControllerLabel.visible = visible;
	speedDecreaseBtn.visible = visible;
	speedDecreaseTxt.visible = visible;
	speedIncreaseBtn.visible = visible;
	speedIncreaseTxt.visible = visible;
	if (visible) {
		speedControllerLabel.setText(gameSpeed.toFixed(1) + "x");
	}
}
// Track if EnemyX has spawned
var enemyXSpawned = false;
var enemyZSpawned = false; // Track if EnemyZ is present in boss mode
// Track if EnemyX has been killed after 250 score (not in boss mode)
var enemyXKilledAfter250 = false;
// Ulti button UI and state
var ultiReady = true;
var ultiCooldown = 0;
var ultiCooldownMax = 1200; // 20 seconds at 60fps
// Beam button UI and state
var beamButtonReady = true;
var beamButtonCooldown = 0;
var beamButtonCooldownMax = 600; // 10 seconds at 60fps (half of ulti)
// Wave button UI and state
var waveButtonReady = true;
var waveButtonCooldown = 0;
var waveButtonCooldownMax = 900; // 15 seconds at 60fps (0.75x of ulti)
// Create ulti button
var ultiBtn = new Text2("ULTI", {
	size: 120,
	fill: 0x00EAFF,
	fontWeight: "bold"
});
ultiBtn.anchor.set(0.5, 0.5);
// Place in right corner, leaving margin for touch and not overlapping top menu
ultiBtn.x = 2048 - 180;
ultiBtn.y = 2732 - 180;
ultiBtn.bg = LK.getAsset('enemy2', {
	anchorX: 0.5,
	anchorY: 0.5,
	tint: 0x00eaff
});
ultiBtn.bg.width = 340;
ultiBtn.bg.height = 220;
ultiBtn.bg.alpha = 0.25;
ultiBtn.bg.x = ultiBtn.x;
ultiBtn.bg.y = ultiBtn.y;
ultiBtn.bg.visible = false; // Hide in menu
game.addChild(ultiBtn.bg);
ultiBtn.visible = false; // Hide in menu
game.addChild(ultiBtn);
// Create beam button above ulti button
var beamBtn = new Text2("CANNON", {
	size: 120,
	fill: 0x00EAFF,
	fontWeight: "bold"
});
beamBtn.anchor.set(0.5, 0.5);
// Place above ulti button with gap
beamBtn.x = 2048 - 180;
beamBtn.y = 2732 - 180 - 240; // 60px gap above ulti button
beamBtn.bg = LK.getAsset('enemy2', {
	anchorX: 0.5,
	anchorY: 0.5,
	tint: 0xffaa00 // Orange color to distinguish from ulti
});
beamBtn.bg.width = 340;
beamBtn.bg.height = 220;
beamBtn.bg.alpha = 0.25;
beamBtn.bg.x = beamBtn.x;
beamBtn.bg.y = beamBtn.y;
beamBtn.bg.visible = false; // Hide in menu and until purchased
game.addChild(beamBtn.bg);
beamBtn.visible = false; // Hide in menu and until purchased
game.addChild(beamBtn);
// Create wave button above beam button
var waveBtn = new Text2("WAVE", {
	size: 120,
	fill: 0x00EAFF,
	fontWeight: "bold"
});
waveBtn.anchor.set(0.5, 0.5);
// Place above beam button with gap
waveBtn.x = 2048 - 180;
waveBtn.y = 2732 - 180 - 240 - 240; // 60px gap above beam button
waveBtn.bg = LK.getAsset('enemy2', {
	anchorX: 0.5,
	anchorY: 0.5,
	tint: 0x9c27b0 // Purple color to distinguish from others
});
waveBtn.bg.width = 340;
waveBtn.bg.height = 220;
waveBtn.bg.alpha = 0.25;
waveBtn.bg.x = waveBtn.x;
waveBtn.bg.y = waveBtn.y;
waveBtn.bg.visible = false; // Hide in menu and until purchased
game.addChild(waveBtn.bg);
waveBtn.visible = false; // Hide in menu and until purchased
game.addChild(waveBtn);
// Beam button cooldown overlay
var beamBtnOverlay = LK.getAsset('enemy2', {
	anchorX: 0.5,
	anchorY: 0.5,
	tint: 0x222222
});
beamBtnOverlay.width = 340;
beamBtnOverlay.height = 220;
beamBtnOverlay.alpha = 0.55;
beamBtnOverlay.x = beamBtn.x;
beamBtnOverlay.y = beamBtn.y;
beamBtnOverlay.visible = false;
game.addChild(beamBtnOverlay);
// Wave button cooldown overlay
var waveBtnOverlay = LK.getAsset('enemy2', {
	anchorX: 0.5,
	anchorY: 0.5,
	tint: 0x222222
});
waveBtnOverlay.width = 340;
waveBtnOverlay.height = 220;
waveBtnOverlay.alpha = 0.55;
waveBtnOverlay.x = waveBtn.x;
waveBtnOverlay.y = waveBtn.y;
waveBtnOverlay.visible = false;
game.addChild(waveBtnOverlay);
// Ulti button cooldown overlay
var ultiBtnOverlay = LK.getAsset('enemy2', {
	anchorX: 0.5,
	anchorY: 0.5,
	tint: 0x222222
});
ultiBtnOverlay.width = 340;
ultiBtnOverlay.height = 220;
ultiBtnOverlay.alpha = 0.55;
ultiBtnOverlay.x = ultiBtn.x;
ultiBtnOverlay.y = ultiBtn.y;
ultiBtnOverlay.visible = false;
game.addChild(ultiBtnOverlay);
// Laser Cannon state (no button UI)
var laserReady = true;
var laserCooldown = 0;
var laserCooldownMax = 720; // 12 seconds at 60fps
// Armor visual overlay for shield
var heroArmor = LK.getAsset('enemy2', {
	anchorX: 0.5,
	anchorY: 0.5,
	tint: 0x80eaff // light blue
});
heroArmor.width = hero.width * 1.35;
heroArmor.height = hero.height * 1.35;
heroArmor.alpha = 0.55;
heroArmor.visible = false;
game.addChild(heroArmor);
var heroBullets = [];
var enemies = [];
var enemyBullets = [];
var items = [];
var dragNode = null;
var lastHeroIntersecting = false;
var score = 0;
var spawnTick = 0;
var enemyShootTick = 0;
var lastCoinScore = 0; // Track last score milestone for coin rewards
// Powerup state
var shieldActive = false;
var shieldTimer = 0;
var beamActive = false;
var beamTimer = 0;
// Helper: spawn item
function spawnItem() {
	var itemType = Math.random() < 0.5 ? "shield" : "beam";
	var item;
	if (itemType === "shield") {
		item = new ShieldItem();
	} else {
		item = new BeamItem();
	}
	item.x = 200 + Math.random() * (2048 - 400);
	item.y = -80;
	items.push(item);
	game.addChild(item);
}
// Helper: spawn enemy
function spawnEnemy() {
	// 10% Enemy4 (now allowed in score mode at any score), 20% Enemy3, 35% Enemy1, 35% Enemy2
	var rand = Math.random();
	var enemy;
	// Only allow Enemy4 to spawn after 600 score in standard and god modes
	if (rand < 0.35) {
		enemy = new Enemy1();
		enemy.x = 200 + Math.random() * (2048 - 400);
		enemy.y = -80;
	} else if (rand < 0.7) {
		enemy = new Enemy2();
		enemy.baseX = 200 + Math.random() * (2048 - 400);
		enemy.x = enemy.baseX;
		enemy.y = -80;
		enemy.t = Math.random() * 2;
	} else if (rand < 0.9) {
		enemy = new Enemy3();
		enemy.x = 200 + Math.random() * (2048 - 400);
		enemy.y = -80;
	} else {
		// Enemy4 spawn logic
		if (typeof scoreMode !== "undefined" && scoreMode || (typeof godMode !== "undefined" && godMode || typeof bossMode !== "undefined" && !bossMode) && (typeof score !== "undefined" && score >= 600 || typeof enemyXKilledAfter250 !== "undefined" && enemyXKilledAfter250)) {
			// In score mode, always allow Enemy4. In standard/god mode, allow after 600 score OR after EnemyX is defeated.
			enemy = new Enemy4();
			enemy.x = 200 + Math.random() * (2048 - 400);
			enemy.y = -80;
		} else {
			// If not allowed, fallback to Enemy1
			enemy = new Enemy1();
			enemy.x = 200 + Math.random() * (2048 - 400);
			enemy.y = -80;
		}
	}
	enemies.push(enemy);
	game.addChild(enemy);
}
// Helper: spawn enemy bullet
function spawnEnemyBullet(enemy, targetX, targetY) {
	var bullet = new EnemyBullet();
	bullet.x = enemy.x;
	bullet.y = enemy.y + 60;
	// Aim at hero
	var dx = targetX - bullet.x;
	var dy = targetY - bullet.y;
	var len = Math.sqrt(dx * dx + dy * dy);
	if (len > 0) {
		bullet.speedX = dx / len * 18;
		bullet.speedY = dy / len * 18;
	}
	enemyBullets.push(bullet);
	game.addChild(bullet);
	LK.getSound('enemyShoot').play();
}
// Helper: create great shields
function createGreatShields() {
	// Clear any existing shields
	for (var i = greatShields.length - 1; i >= 0; i--) {
		greatShields[i].destroy();
		greatShields.splice(i, 1);
	}
	// Create 4 new shields
	for (var i = 0; i < 4; i++) {
		var shield = new GreatShieldOrb();
		shield.angle = i * Math.PI * 2 / 4; // Space them 90 degrees apart
		greatShields.push(shield);
		game.addChild(shield);
	}
	greatShieldActive = true;
}
// Helper: check great shield collision and destroy shield
function checkGreatShieldCollisions() {
	if (!greatShieldActive || greatShields.length === 0) return;
	// Check collisions with enemy bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var bullet = enemyBullets[i];
		for (var j = greatShields.length - 1; j >= 0; j--) {
			var shield = greatShields[j];
			if (shield.intersects(bullet)) {
				// Destroy the shield that was hit
				LK.effects.flashObject(shield, 0xffffff, 200);
				shield.destroy();
				greatShields.splice(j, 1);
				// Destroy the bullet
				bullet.destroy();
				enemyBullets.splice(i, 1);
				// Check if all shields are gone
				if (greatShields.length === 0) {
					greatShieldActive = false;
					greatShieldRespawnTimer = 420; // 7 seconds at 60fps
				}
				break;
			}
		}
	}
	// Check collisions with enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		// Skip boss enemies
		if (enemy instanceof EnemyX || enemy instanceof EnemyZ) continue;
		for (var j = greatShields.length - 1; j >= 0; j--) {
			var shield = greatShields[j];
			if (shield.intersects(enemy)) {
				// Destroy the shield that was hit
				LK.effects.flashObject(shield, 0xffffff, 200);
				shield.destroy();
				greatShields.splice(j, 1);
				// Destroy the enemy (with particle effect)
				LK.effects.flashObject(enemy, 0xffffff, 200);
				for (var pi = 0; pi < 12; pi++) {
					var part = LK.getAsset(enemy instanceof Enemy1 ? 'enemy1' : enemy instanceof Enemy2 ? 'enemy2' : 'enemy3', {
						anchorX: 0.5,
						anchorY: 0.5
					});
					part.x = enemy.x;
					part.y = enemy.y;
					part.width = 20 + Math.random() * 20;
					part.height = 20 + Math.random() * 20;
					part.alpha = 0.7 + Math.random() * 0.3;
					var angle = Math.PI * 2 * (pi / 12) + Math.random() * 0.2;
					var speed = 10 + Math.random() * 10;
					var vx = Math.cos(angle) * speed;
					var vy = Math.sin(angle) * speed;
					part.life = 10 + Math.floor(Math.random() * 10);
					part.update = function () {
						this.x += vx;
						this.y += vy;
						this.life--;
						this.alpha *= 0.88 + Math.random() * 0.06;
						if (this.life <= 0) {
							this.destroy();
						}
					};
					game.addChild(part);
				}
				enemy.destroy();
				enemies.splice(i, 1);
				// Check if all shields are gone
				if (greatShields.length === 0) {
					greatShieldActive = false;
					greatShieldRespawnTimer = 420; // 7 seconds at 60fps
				}
				break;
			}
		}
	}
}
// Move handler for dragging hero
function handleMove(x, y, obj) {
	// Always follow mouse if not dragging and not in menu
	if (!dragNode && !(typeof menuActive !== "undefined" && menuActive)) {
		// Clamp hero inside screen
		var hw = hero.width / 2;
		var hh = hero.height / 2;
		var nx = Math.max(hw, Math.min(2048 - hw, x));
		var ny = Math.max(hh + 100, Math.min(2732 - hh, y));
		hero.x = nx;
		hero.y = ny;
		return;
	}
	if (dragNode) {
		// Clamp hero inside screen
		var hw = dragNode.width / 2;
		var hh = dragNode.height / 2;
		var nx = Math.max(hw, Math.min(2048 - hw, x));
		var ny = Math.max(hh + 100, Math.min(2732 - hh, y));
		dragNode.x = nx;
		dragNode.y = ny;
	}
}
// --- Make hero follow mouse automatically at game start (PC only) ---
if (typeof window !== "undefined" && window.addEventListener) {
	window.addEventListener("mousemove", function (evt) {
		// Only follow if not in menu and not dragging
		if (typeof menuActive !== "undefined" && menuActive) {
			return;
		}
		if (dragNode) {
			return;
		}
		// Get bounding rect of canvas
		var canvas = LK.getCanvas ? LK.getCanvas() : document.querySelector("canvas") || null;
		if (!canvas) {
			return;
		}
		var rect = canvas.getBoundingClientRect();
		// Convert mouse coordinates to game coordinates
		var scaleX = 2048 / rect.width;
		var scaleY = 2732 / rect.height;
		var x = (evt.clientX - rect.left) * scaleX;
		var y = (evt.clientY - rect.top) * scaleY;
		handleMove(x, y, {
			event: evt
		});
	});
}
// Touch down: start dragging hero
game.down = function (x, y, obj) {
	if (typeof menuActive !== "undefined" && menuActive) {
		return;
	}
	// Handle speed controller interactions (only in god mode)
	if (godMode && !menuActive) {
		// Speed decrease button
		var dx = x - speedDecreaseBtn.x;
		var dy = y - speedDecreaseBtn.y;
		if (Math.abs(dx) <= speedDecreaseBtn.width / 2 && Math.abs(dy) <= speedDecreaseBtn.height / 2) {
			gameSpeed = Math.max(0.1, gameSpeed - 0.1);
			updateSpeedController();
			return;
		}
		// Speed increase button
		var idx = x - speedIncreaseBtn.x;
		var idy = y - speedIncreaseBtn.y;
		if (Math.abs(idx) <= speedIncreaseBtn.width / 2 && Math.abs(idy) <= speedIncreaseBtn.height / 2) {
			gameSpeed = Math.min(3.0, gameSpeed + 0.1);
			updateSpeedController();
			return;
		}
	}
	// Handle wave button press (touch/click)
	var solarWavePurchased = storage.solarWavePurchased || false;
	if (solarWavePurchased && waveButtonReady) {
		// Check if touch is inside wave button area
		var wdx = x - waveBtn.x;
		var wdy = y - waveBtn.y;
		if (Math.abs(wdx) <= waveBtn.bg.width / 2 && Math.abs(wdy) <= waveBtn.bg.height / 2) {
			// Activate wave
			if (!godMode) {
				waveButtonReady = false;
				waveButtonCooldown = waveButtonCooldownMax;
				waveBtnOverlay.visible = true;
			}
			// Find nearest enemy for targeting
			var targetX = hero.x;
			var targetY = hero.y - 200; // Default target above hero
			var nearestDistance = Infinity;
			for (var i = 0; i < enemies.length; i++) {
				var enemy = enemies[i];
				var dx = enemy.x - hero.x;
				var dy = enemy.y - hero.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance < nearestDistance) {
					nearestDistance = distance;
					targetX = enemy.x;
					targetY = enemy.y;
				}
			}
			// Calculate base angle toward target
			var baseDx = targetX - hero.x;
			var baseDy = targetY - hero.y;
			var baseAngle = Math.atan2(baseDy, baseDx);
			// Shoot 7 waves of bullets with delays using tween
			var waveCount = 7;
			var bulletsPerWave = 15;
			var waveDelay = 150; // milliseconds between waves
			var initialDelay = 200; // initial wait time
			// Start shooting waves after initial delay
			tween({}, {}, {
				duration: initialDelay,
				onFinish: function onFinish() {
					// Shoot each wave with increasing delays
					for (var wave = 0; wave < waveCount; wave++) {
						(function (waveIndex) {
							tween({}, {}, {
								duration: waveIndex * waveDelay,
								onFinish: function onFinish() {
									// Shoot 15 bullets in crescent shape for this wave
									var spreadAngle = Math.PI / 3; // 60 degrees total spread
									for (var i = 0; i < bulletsPerWave; i++) {
										var bullet = new HeroBullet();
										bullet.x = hero.x;
										bullet.y = hero.y - hero.height / 2 - 20;
										// Calculate angle for this bullet (spread from left to right)
										var angleOffset = (i - 7) * (spreadAngle / 14); // Center around middle bullet
										var finalAngle = baseAngle + angleOffset;
										// Set bullet velocity
										var bulletSpeed = 28;
										bullet.speedX = Math.cos(finalAngle) * bulletSpeed;
										bullet.speedY = Math.sin(finalAngle) * bulletSpeed;
										// Override update to use custom velocity
										bullet.update = function (speedX, speedY) {
											return function () {
												this.x += speedX * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
												this.y += speedY * (typeof gameSpeed !== "undefined" ? gameSpeed : 1);
											};
										}(bullet.speedX, bullet.speedY);
										heroBullets.push(bullet);
										game.addChild(bullet);
									}
									LK.getSound('Cannon').play();
								}
							});
						})(wave);
					}
					LK.getSound('laser').play();
				}
			});
			return;
		}
	}
	// Handle beam button press (touch/click)
	var laserBeamPurchased = storage.laserBeamPurchased || false;
	if (laserBeamPurchased && beamButtonReady) {
		// Check if touch is inside beam button area
		var bdx = x - beamBtn.x;
		var bdy = y - beamBtn.y;
		if (Math.abs(bdx) <= beamBtn.bg.width / 2 && Math.abs(bdy) <= beamBtn.bg.height / 2) {
			// Activate beam
			if (!godMode) {
				beamButtonReady = false;
				beamButtonCooldown = beamButtonCooldownMax;
				beamBtnOverlay.visible = true;
			}
			// Shoot 5 laser balls one after another with 0.2 second delays
			var shootPositions = [{
				x: 2048 * 0.2,
				delay: 200
			},
			// Left
			{
				x: 2048 * 0.4,
				delay: 400
			},
			// Left-Center
			{
				x: 2048 * 0.5,
				delay: 600
			},
			// Center
			{
				x: 2048 * 0.6,
				delay: 800
			},
			// Right-Center
			{
				x: 2048 * 0.8,
				delay: 1000
			} // Right
			];
			for (var i = 0; i < shootPositions.length; i++) {
				var pos = shootPositions[i];
				// Create delayed shooting using setTimeout
				var delayedShoot = function (shootX, shootDelay) {
					return function () {
						var laserBall = new LaserBall();
						laserBall.x = shootX;
						laserBall.y = 2732; // Start from bottom of screen
						heroBullets.push(laserBall);
						game.addChild(laserBall);
						LK.getSound('Cannon').play();
					};
				}(pos.x, pos.delay);
				// Use setTimeout to delay each shot
				LK.setTimeout(delayedShoot, pos.delay);
			}
			LK.getSound('laser').play();
			return;
		}
	}
	// Handle ulti button press (touch/click)
	if (ultiReady) {
		// Check if touch is inside ulti button area
		var dx = x - ultiBtn.x;
		var dy = y - ultiBtn.y;
		if (Math.abs(dx) <= ultiBtn.bg.width / 2 && Math.abs(dy) <= ultiBtn.bg.height / 2) {
			// Activate ulti
			if (!godMode) {
				ultiReady = false;
				ultiCooldown = ultiCooldownMax;
				ultiBtnOverlay.visible = true;
			}
			// Play ulti sound
			LK.getSound('Ulti').play();
			// Ulti effect: clear all enemies and enemy bullets
			for (var i = enemies.length - 1; i >= 0; i--) {
				var e = enemies[i];
				if (e instanceof EnemyX) {
					// Ulti is ineffective if EnemyX has under 50 health
					if (e.hp < 50) {
						// Flash to show ulti hit but no damage
						LK.effects.flashObject(e, 0xff0000, 120);
						continue;
					}
					// Ulti does 50 damage to EnemyX in both boss mode and normal mode
					e.hp -= 50;
					LK.effects.flashObject(e, 0xffffff, 400);
					if (e.hp <= 0) {
						// Play death animation for EnemyX
						var enemyToDestroy = e;
						for (var pi = 0; pi < 48; pi++) {
							var part = LK.getAsset('enemyX', {
								anchorX: 0.5,
								anchorY: 0.5
							});
							part.x = enemyToDestroy.x;
							part.y = enemyToDestroy.y;
							part.width = 48 + Math.random() * 48;
							part.height = 48 + Math.random() * 48;
							part.alpha = 0.8 + Math.random() * 0.2;
							var angle = Math.PI * 2 * (pi / 48) + Math.random() * 0.2;
							var speed = 24 + Math.random() * 16;
							var vx = Math.cos(angle) * speed;
							var vy = Math.sin(angle) * speed;
							part.life = 32 + Math.floor(Math.random() * 32);
							part.update = function () {
								this.x += vx;
								this.y += vy;
								this.life--;
								this.alpha *= 0.90 + Math.random() * 0.04;
								if (this.life <= 0) {
									this.destroy();
								}
							};
							game.addChild(part);
						}
						// Add score for killing EnemyX with ulti
						score += 1;
						scoreTxt.setText(score);
						// Drop 3 health potions when EnemyX is killed by ulti
						for (var hp = 0; hp < 3; hp++) {
							var healthPotion = new HealthPotion();
							healthPotion.x = enemyToDestroy.x - 60 + 60 * hp;
							healthPotion.y = enemyToDestroy.y;
							items.push(healthPotion);
							game.addChild(healthPotion);
						}
						enemyToDestroy.destroy();
						enemies.splice(i, 1);
					}
				} else if (e instanceof EnemyZ) {
					// Ulti is ineffective if EnemyZ has under 50 health
					if (e.hp < 50) {
						// Flash to show ulti hit but no damage
						LK.effects.flashObject(e, 0xff0000, 120);
						continue;
					}
					// Ulti does 50 damage to EnemyZ in both boss mode and normal mode
					e.hp -= 50;
					LK.effects.flashObject(e, 0xffffff, 400);
					if (e.hp <= 0) {
						// Play death animation for EnemyZ
						var enemyToDestroy = e;
						for (var pi = 0; pi < 48; pi++) {
							var part = LK.getAsset('EnemyZ', {
								anchorX: 0.5,
								anchorY: 0.5
							});
							part.x = enemyToDestroy.x;
							part.y = enemyToDestroy.y;
							part.width = 48 + Math.random() * 48;
							part.height = 48 + Math.random() * 48;
							part.alpha = 0.8 + Math.random() * 0.2;
							var angle = Math.PI * 2 * (pi / 48) + Math.random() * 0.2;
							var speed = 24 + Math.random() * 16;
							var vx = Math.cos(angle) * speed;
							var vy = Math.sin(angle) * speed;
							part.life = 32 + Math.floor(Math.random() * 32);
							part.update = function () {
								this.x += vx;
								this.y += vy;
								this.life--;
								this.alpha *= 0.90 + Math.random() * 0.04;
								if (this.life <= 0) {
									this.destroy();
								}
							};
							game.addChild(part);
						}
						// Add score for killing EnemyZ with ulti
						score += 1;
						scoreTxt.setText(score);
						// Drop 3 health potions when EnemyZ is killed by ulti
						for (var hp = 0; hp < 3; hp++) {
							var healthPotion = new HealthPotion();
							healthPotion.x = enemyToDestroy.x - 60 + 60 * hp;
							healthPotion.y = enemyToDestroy.y;
							items.push(healthPotion);
							game.addChild(healthPotion);
						}
						enemyToDestroy.destroy();
						enemies.splice(i, 1);
					}
				} else {
					// Add score for killing normal enemies with ulti
					score += 1;
					scoreTxt.setText(score);
					enemies[i].destroy();
					enemies.splice(i, 1);
				}
			}
			for (var i = enemyBullets.length - 1; i >= 0; i--) {
				enemyBullets[i].destroy();
				enemyBullets.splice(i, 1);
			}
			LK.effects.flashScreen(0x00eaff, 600);
			return;
		}
	}
	// PC: left mouse click triggers laser cannon if ready and not on menu
	if (obj && obj.event && obj.event.type === "mousedown" && obj.event.button === 0 && laserReady) {
		// Only fire if click is inside hero sprite (circle)
		var dx = x - hero.x;
		var dy = y - hero.y;
		if (dx * dx + dy * dy <= hero.radius * hero.radius) {
			// Activate laser
			laserReady = false;
			laserCooldown = laserCooldownMax;
			// Laser effect: fire a vertical laser column at hero.x
			var laserX = hero.x;
			// Visual effect: draw a vertical beam for a short time, and make it follow the hero
			var laserBeam = LK.getAsset('heroBullet', {
				anchorX: 0.5,
				anchorY: 1,
				x: laserX,
				y: hero.y - hero.height / 2
			});
			laserBeam.width = 80;
			laserBeam.height = hero.y - hero.height / 2; // from hero to top
			laserBeam.alpha = 0.45;
			game.addChild(laserBeam);
			// Store reference to active laser beam and set timer
			game.activeLaserBeam = laserBeam;
			game.activeLaserBeamTimer = 90; // 1.5 seconds at 60fps
			LK.getSound('laser').play();
			// Destroy all enemies and enemy bullets in the column
			for (var i = enemies.length - 1; i >= 0; i--) {
				var e = enemies[i];
				if (Math.abs(e.x - laserX) <= 80) {
					// Laser cannon does NOT affect EnemyX or EnemyZ (bosses)
					if (e instanceof EnemyX || e instanceof EnemyZ) {
						// Flash to show hit, but do not damage or destroy
						LK.effects.flashObject(e, 0xff0000, 120);
						continue;
					}
					LK.effects.flashObject(e, 0xffffff, 200);
					for (var pi = 0; pi < 12; pi++) {
						var part = LK.getAsset(e instanceof Enemy1 ? 'enemy1' : e instanceof Enemy2 ? 'enemy2' : 'enemy3', {
							anchorX: 0.5,
							anchorY: 0.5
						});
						part.x = e.x;
						part.y = e.y;
						part.width = 20 + Math.random() * 20;
						part.height = 20 + Math.random() * 20;
						part.alpha = 0.7 + Math.random() * 0.3;
						var angle = Math.PI * 2 * (pi / 12) + Math.random() * 0.2;
						var speed = 10 + Math.random() * 10;
						var vx = Math.cos(angle) * speed;
						var vy = Math.sin(angle) * speed;
						part.life = 10 + Math.floor(Math.random() * 10);
						part.update = function () {
							this.x += vx;
							this.y += vy;
							this.life--;
							this.alpha *= 0.88 + Math.random() * 0.06;
							if (this.life <= 0) {
								this.destroy();
							}
						};
						game.addChild(part);
					}
					// 35% chance to drop a health potion if Enemy3
					if (e instanceof Enemy3 && Math.random() < 0.35) {
						var healthPotion = new HealthPotion();
						healthPotion.x = e.x;
						healthPotion.y = e.y;
						items.push(healthPotion);
						game.addChild(healthPotion);
					}
					e.destroy();
					enemies.splice(i, 1);
				}
			}
			for (var i = enemyBullets.length - 1; i >= 0; i--) {
				var b = enemyBullets[i];
				if (Math.abs(b.x - laserX) <= 80) {
					b.destroy();
					enemyBullets.splice(i, 1);
				}
			}
			return;
		}
	}
	dragNode = hero;
	handleMove(x, y, obj);
};
// Touch up: stop dragging
game.up = function (x, y, obj) {
	if (typeof menuActive !== "undefined" && menuActive) {
		return;
	}
	dragNode = null;
};
// Touch move: move hero
game.move = function (x, y, obj) {
	if (typeof menuActive !== "undefined" && menuActive) {
		return;
	}
	handleMove(x, y, obj);
	// Handle laser cannon activation by clicking on the hero
	if (laserReady) {
		var dx = x - hero.x;
		var dy = y - hero.y;
		// Check if touch/click is inside hero sprite (circle)
		if (dx * dx + dy * dy <= hero.radius * hero.radius) {
			// Activate laser
			laserReady = false;
			laserCooldown = laserCooldownMax;
			// Laser effect: fire a vertical laser column at hero.x
			var laserX = hero.x;
			// Visual effect: draw a vertical beam for a short time, and make it follow the hero
			var laserBeam = LK.getAsset('heroBullet', {
				anchorX: 0.5,
				anchorY: 1,
				//{37}  // anchor at bottom
				x: laserX,
				y: hero.y - hero.height / 2
			});
			laserBeam.width = 80;
			laserBeam.height = hero.y - hero.height / 2; // from hero to top
			laserBeam.alpha = 0.45;
			game.addChild(laserBeam);
			// Store reference to active laser beam and set timer
			game.activeLaserBeam = laserBeam;
			game.activeLaserBeamTimer = 90; // 1.5 seconds at 60fps
			LK.getSound('laser').play();
			// Destroy all enemies and enemy bullets in the column
			for (var i = enemies.length - 1; i >= 0; i--) {
				var e = enemies[i];
				if (Math.abs(e.x - laserX) <= 80) {
					// Laser cannon does NOT affect EnemyX or EnemyZ (bosses)
					if (e instanceof EnemyX || e instanceof EnemyZ) {
						// Flash to show hit, but do not damage or destroy
						LK.effects.flashObject(e, 0xff0000, 120);
						continue;
					}
					// Play death animation for each
					LK.effects.flashObject(e, 0xffffff, 200);
					// Particle effect for each
					for (var pi = 0; pi < 12; pi++) {
						var part = LK.getAsset(e instanceof Enemy1 ? 'enemy1' : e instanceof Enemy2 ? 'enemy2' : 'enemy3', {
							anchorX: 0.5,
							anchorY: 0.5
						});
						part.x = e.x;
						part.y = e.y;
						part.width = 20 + Math.random() * 20;
						part.height = 20 + Math.random() * 20;
						part.alpha = 0.7 + Math.random() * 0.3;
						var angle = Math.PI * 2 * (pi / 12) + Math.random() * 0.2;
						var speed = 10 + Math.random() * 10;
						var vx = Math.cos(angle) * speed;
						var vy = Math.sin(angle) * speed;
						part.life = 10 + Math.floor(Math.random() * 10);
						part.update = function () {
							this.x += vx;
							this.y += vy;
							this.life--;
							this.alpha *= 0.88 + Math.random() * 0.06;
							if (this.life <= 0) {
								this.destroy();
							}
						};
						game.addChild(part);
					}
					// 35% chance to drop a health potion if Enemy3
					if (e instanceof Enemy3 && Math.random() < 0.35) {
						var healthPotion = new HealthPotion();
						healthPotion.x = e.x;
						healthPotion.y = e.y;
						items.push(healthPotion);
						game.addChild(healthPotion);
					}
					e.destroy();
					enemies.splice(i, 1);
				}
			}
			for (var i = enemyBullets.length - 1; i >= 0; i--) {
				var b = enemyBullets[i];
				if (Math.abs(b.x - laserX) <= 80) {
					b.destroy();
					enemyBullets.splice(i, 1);
				}
			}
			return;
		}
	}
};
// Main game update
game.update = function () {
	if (typeof menuActive !== "undefined" && menuActive) {
		// Block all game logic while menu is active
		return;
	}
	// Stop all game logic if gameover screen is shown in score mode
	if (scoreMode && game.nicknamePromptOverlay && game.nicknamePromptOverlay.visible) {
		return;
	}
	// Update speed controller visibility
	updateSpeedController();
	// Great Shield system logic
	var greatShieldPurchased = storage.greatShieldPurchased || false;
	if (greatShieldPurchased && !menuActive) {
		// Mark game as started when not in menu
		if (!greatShieldGameStarted) {
			greatShieldGameStarted = true;
			greatShieldSpawnTimer = 600; // 10 seconds at 60fps
		}
		// Handle initial spawn timer (10 seconds after game start)
		if (greatShieldSpawnTimer > 0 && !greatShieldActive && greatShields.length === 0) {
			greatShieldSpawnTimer -= typeof gameSpeed !== "undefined" ? gameSpeed : 1;
			if (greatShieldSpawnTimer <= 0) {
				createGreatShields();
			}
		}
		// Handle respawn timer (7 seconds after all shields destroyed)
		if (greatShieldRespawnTimer > 0) {
			greatShieldRespawnTimer -= typeof gameSpeed !== "undefined" ? gameSpeed : 1;
			if (greatShieldRespawnTimer <= 0) {
				createGreatShields();
			}
		}
		// Update existing shields
		for (var i = 0; i < greatShields.length; i++) {
			greatShields[i].update();
		}
		// Check shield collisions
		checkGreatShieldCollisions();
	} else if (!greatShieldPurchased || menuActive) {
		// Clean up shields if not purchased or in menu
		greatShieldGameStarted = false;
		greatShieldSpawnTimer = 0;
		greatShieldRespawnTimer = 0;
		greatShieldActive = false;
		for (var i = greatShields.length - 1; i >= 0; i--) {
			greatShields[i].destroy();
			greatShields.splice(i, 1);
		}
	}
	// Apply game speed multiplier to all timed operations
	var speedMultiplier = gameSpeed;
	// Coin reward system - give 10 coins for every 50 score passed (except god mode)
	if (!godMode && score > 0) {
		var currentCoinMilestone = Math.floor(score / 50) * 50;
		var lastCoinMilestone = Math.floor(lastCoinScore / 50) * 50;
		if (currentCoinMilestone > lastCoinMilestone) {
			var coinsEarned = (currentCoinMilestone - lastCoinMilestone) / 50 * 10;
			coins += coinsEarned;
			storage.coins = coins;
			coinsTxt.setText('Coins: ' + coins);
		}
	}
	lastCoinScore = score;
	// Update hero
	hero.update();
	// Laser beam follow logic
	if (game.activeLaserBeam) {
		// Move the beam to follow the hero's x and y, and always stretch from hero to top
		game.activeLaserBeam.x = hero.x;
		game.activeLaserBeam.y = hero.y - hero.height / 2;
		game.activeLaserBeam.height = hero.y - hero.height / 2;
		// Laser beam hits enemies it touches
		for (var i = enemies.length - 1; i >= 0; i--) {
			var e = enemies[i];
			// Check if enemy is within the laser beam's column (80px wide, same as beam)
			if (e.y + (e.height ? e.height / 2 : 60) >= 0 &&
			// enemy is not above top
			e.y - (e.height ? e.height / 2 : 60) <= hero.y - hero.height / 2 &&
			// enemy is not below beam bottom
			Math.abs(e.x - game.activeLaserBeam.x) <= game.activeLaserBeam.width / 2) {
				// Laser cannon does NOT affect EnemyX or EnemyZ (bosses)
				if (e instanceof EnemyX || e instanceof EnemyZ) {
					// Flash to show hit, but do not damage or destroy
					LK.effects.flashObject(e, 0xff0000, 120);
					continue;
				}
				// Play hit sound and flash
				LK.getSound('enemyHit').play();
				LK.effects.flashObject(e, 0xffffff, 200);
				// Score and handle Enemy3 HP
				score += 1;
				scoreTxt.setText(score);
				if (e instanceof Enemy3) {
					e.hp--;
					if (e.hp <= 0) {
						// Play death animation before destroying Enemy3
						var enemyToDestroy = e;
						for (var pi = 0; pi < 24; pi++) {
							var part = LK.getAsset('enemy3', {
								anchorX: 0.5,
								anchorY: 0.5
							});
							part.x = enemyToDestroy.x;
							part.y = enemyToDestroy.y;
							part.width = 32 + Math.random() * 32;
							part.height = 32 + Math.random() * 32;
							part.alpha = 0.8 + Math.random() * 0.2;
							var angle = Math.PI * 2 * (pi / 24) + Math.random() * 0.2;
							var speed = 16 + Math.random() * 12;
							var vx = Math.cos(angle) * speed;
							var vy = Math.sin(angle) * speed;
							part.life = 16 + Math.floor(Math.random() * 16);
							part.update = function () {
								this.x += vx;
								this.y += vy;
								this.life--;
								this.alpha *= 0.90 + Math.random() * 0.04;
								if (this.life <= 0) {
									this.destroy();
								}
							};
							game.addChild(part);
						}
						// 35% chance to drop a health potion when Enemy3 is killed
						if (Math.random() < 0.35) {
							var healthPotion = new HealthPotion();
							healthPotion.x = enemyToDestroy.x;
							healthPotion.y = enemyToDestroy.y;
							items.push(healthPotion);
							game.addChild(healthPotion);
						}
						enemyToDestroy.destroy();
						enemies.splice(i, 1);
					} else {
						// Flash for hit, but don't destroy
						LK.effects.flashObject(e, 0x8e24aa, 120);
					}
				} else {
					// Play death animation before destroying normal enemies
					var enemyToDestroy = e;
					for (var pi = 0; pi < 16; pi++) {
						var part = LK.getAsset(enemyToDestroy instanceof Enemy1 ? 'enemy1' : 'enemy2', {
							anchorX: 0.5,
							anchorY: 0.5
						});
						part.x = enemyToDestroy.x;
						part.y = enemyToDestroy.y;
						part.width = 20 + Math.random() * 20;
						part.height = 20 + Math.random() * 20;
						part.alpha = 0.7 + Math.random() * 0.3;
						var angle = Math.PI * 2 * (pi / 16) + Math.random() * 0.2;
						var speed = 10 + Math.random() * 10;
						var vx = Math.cos(angle) * speed;
						var vy = Math.sin(angle) * speed;
						part.life = 10 + Math.floor(Math.random() * 10);
						part.update = function () {
							this.x += vx;
							this.y += vy;
							this.life--;
							this.alpha *= 0.88 + Math.random() * 0.06;
							if (this.life <= 0) {
								this.destroy();
							}
						};
						game.addChild(part);
					}
					enemyToDestroy.destroy();
					enemies.splice(i, 1);
				}
			}
		}
		// Decrement timer and destroy when done
		game.activeLaserBeamTimer--;
		if (game.activeLaserBeamTimer <= 0) {
			game.activeLaserBeam.destroy();
			game.activeLaserBeam = null;
		}
	}
	// Ulti cooldown logic
	if (godMode) {
		ultiReady = true;
		ultiCooldown = 0;
		ultiBtnOverlay.visible = false;
		ultiBtn.text = "ULTI";
	} else {
		if (!ultiReady) {
			ultiCooldown -= speedMultiplier;
			if (ultiCooldown <= 0) {
				ultiReady = true;
				ultiBtnOverlay.visible = false;
			} else {
				// Show overlay and update text to show seconds left
				ultiBtnOverlay.visible = true;
				ultiBtn.text = "ULTI\n" + Math.ceil(ultiCooldown / 60) + "s";
			}
		}
		if (ultiReady) {
			ultiBtn.text = "ULTI";
			ultiBtnOverlay.visible = false;
		}
	}
	// Wave button cooldown logic
	var solarWavePurchased = storage.solarWavePurchased || false;
	if (solarWavePurchased) {
		// Show wave button if purchased
		waveBtn.visible = !menuActive;
		waveBtn.bg.visible = !menuActive;
		if (godMode) {
			waveButtonReady = true;
			waveButtonCooldown = 0;
			waveBtnOverlay.visible = false;
			waveBtn.text = "WAVE";
		} else {
			if (!waveButtonReady) {
				waveButtonCooldown -= speedMultiplier;
				if (waveButtonCooldown <= 0) {
					waveButtonReady = true;
					waveBtnOverlay.visible = false;
				} else {
					// Show overlay and update text to show seconds left
					waveBtnOverlay.visible = true;
					waveBtn.text = "WAVE\n" + Math.ceil(waveButtonCooldown / 60) + "s";
				}
			}
			if (waveButtonReady) {
				waveBtn.text = "WAVE";
				waveBtnOverlay.visible = false;
			}
		}
	} else {
		// Hide wave button if not purchased
		waveBtn.visible = false;
		waveBtn.bg.visible = false;
		waveBtnOverlay.visible = false;
	}
	// Beam button cooldown logic
	var laserBeamPurchased = storage.laserBeamPurchased || false;
	if (laserBeamPurchased) {
		// Show beam button if purchased
		beamBtn.visible = !menuActive;
		beamBtn.bg.visible = !menuActive;
		if (godMode) {
			beamButtonReady = true;
			beamButtonCooldown = 0;
			beamBtnOverlay.visible = false;
			beamBtn.text = "CANNON";
		} else {
			if (!beamButtonReady) {
				beamButtonCooldown -= speedMultiplier;
				if (beamButtonCooldown <= 0) {
					beamButtonReady = true;
					beamBtnOverlay.visible = false;
				} else {
					// Show overlay and update text to show seconds left
					beamBtnOverlay.visible = true;
					beamBtn.text = "CANNON\n" + Math.ceil(beamButtonCooldown / 60) + "s";
				}
			}
			if (beamButtonReady) {
				beamBtn.text = "CANNON";
				beamBtnOverlay.visible = false;
			}
		}
	} else {
		// Hide beam button if not purchased
		beamBtn.visible = false;
		beamBtn.bg.visible = false;
		beamBtnOverlay.visible = false;
	}
	// Update armor overlay position and visibility
	heroArmor.x = hero.x;
	heroArmor.y = hero.y;
	heroArmor.visible = shieldActive;
	// Laser cannon cooldown logic (no button UI)
	if (!laserReady) {
		laserCooldown -= speedMultiplier;
		if (laserCooldown <= 0) {
			laserReady = true;
		}
	}
	// Update shield/beam timers
	if (shieldActive) {
		shieldTimer -= speedMultiplier;
		if (shieldTimer <= 0) {
			shieldActive = false;
		}
	}
	if (beamActive) {
		beamTimer -= speedMultiplier;
		if (beamTimer <= 0) {
			beamActive = false;
		}
	}
	// Update items (powerups)
	for (var i = items.length - 1; i >= 0; i--) {
		var item = items[i];
		item.update();
		// Remove if off screen
		if (item.y > 2732 + 100) {
			item.destroy();
			items.splice(i, 1);
			continue;
		}
		// Pickup by hero
		if (item.intersects(hero)) {
			if (item instanceof HealthPotion) {
				// Health potion always gives 1 health (if not at max)
				if (heroHealth < maxHealth) {
					heroHealth = Math.min(maxHealth, heroHealth + 1);
					updateHealthBar();
					updateDemoHealthSquares && updateDemoHealthSquares();
					LK.effects.flashObject(hero, 0x44ff44, 400);
				}
			} else if (item instanceof ShieldItem) {
				// If already at max health, treat as shield
				if (heroHealth >= maxHealth) {
					shieldActive = true;
					shieldTimer = 360; // 6 seconds at 60fps
					LK.effects.flashObject(hero, 0x00ffff, 400);
				} else {
					// If not at max health, ignore shield pickup (health potions now handled separately)
				}
			} else if (item instanceof BeamItem) {
				// Always activate beam when BeamItem is picked up (no purchase required)
				beamActive = true;
				beamTimer = 180; // 3 seconds at 60fps
				LK.effects.flashObject(hero, 0xff00ff, 400);
			}
			item.destroy();
			items.splice(i, 1);
			continue;
		}
	}
	// Hero shooting (auto-fire)
	hero.shootCooldown -= speedMultiplier;
	if (hero.shootCooldown <= 0) {
		// Always allow triple bullet shooting (laser beam enabled by default)
		if (beamActive) {
			// Beam: fire 3 bullets in spread
			for (var bdir = -1; bdir <= 1; bdir++) {
				var bullet = new HeroBullet();
				bullet.x = hero.x + bdir * 40;
				bullet.y = hero.y - hero.height / 2 - 20;
				bullet.spread = bdir * 0.18; // radians
				bullet.update = function (origUpdate, spread) {
					return function () {
						this.y += this.speed;
						this.x += Math.sin(spread) * 18;
					};
				}(bullet.update, bullet.spread);
				heroBullets.push(bullet);
				game.addChild(bullet);
			}
			hero.shootCooldown = 6 / speedMultiplier;
			LK.getSound('laser').play();
		} else {
			var bullet = new HeroBullet();
			bullet.x = hero.x;
			bullet.y = hero.y - hero.height / 2 - 20;
			heroBullets.push(bullet);
			game.addChild(bullet);
			hero.shootCooldown = 10 / speedMultiplier;
			LK.getSound('laser').play();
		}
	}
	// Update hero bullets
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var b = heroBullets[i];
		b.update();
		// Remove if off screen
		if (b.y < -60 || b.y > 2732 + 60 || b.x < -60 || b.x > 2048 + 60) {
			b.destroy();
			heroBullets.splice(i, 1);
			continue;
		}
		// Check collision with enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			var e = enemies[j];
			// In boss mode, if EnemyZ is killed, allow next boss to spawn
			if (typeof bossMode !== "undefined" && bossMode && e instanceof EnemyZ && e.hp <= 1 && b.intersects(e)) {
				enemyZSpawned = false;
				spawnTick = 0;
				bossNextToSpawn = "X"; // Always alternate to X after Z dies
			}
			if (b.intersects(e)) {
				// Enemy hit
				LK.getSound('enemyHit').play();
				score += 1;
				scoreTxt.setText(score);
				// Flash enemy
				LK.effects.flashObject(e, 0xffffff, 200);
				// Handle laser ball kill count
				if (b instanceof LaserBall) {
					b.killCount++;
					// Destroy laser ball after 2 kills
					if (b.killCount >= b.maxKills) {
						b.destroy();
						heroBullets.splice(i, 1);
					}
				}
				// Remove both or handle Enemy3/EnemyX/Enemy4/EnemyZ hp
				if (e instanceof Enemy3 || e instanceof EnemyX || e instanceof Enemy4 || e instanceof EnemyZ) {
					// LaserBall deals 10 damage, regular bullets deal 1 damage
					var damage = b instanceof LaserBall ? 10 : 1;
					e.hp -= damage;
					if (e.hp <= 0) {
						// Play death animation before destroying Enemy3/EnemyX/Enemy4/EnemyZ
						var enemyToDestroy = e;
						// --- Enemy4 explosion: visual effect and bullet burst when killed by hero (bullet, laser, shield, or ulti) ---
						if (e instanceof Enemy4) {
							// Flash explosion effect
							LK.effects.flashObject(enemyToDestroy, 0xffffff, 120);
							// Throw 4 bullets around
							if (typeof enemyBullets !== "undefined" && typeof game !== "undefined") {
								for (var bulletDir = 0; bulletDir < 4; bulletDir++) {
									var bullet = new EnemyBullet();
									bullet.x = enemyToDestroy.x;
									bullet.y = enemyToDestroy.y;
									// 4 directions: up, right, down, left (90 degrees apart)
									var angle = bulletDir * Math.PI / 2;
									var speed = 20;
									bullet.speedX = Math.cos(angle) * speed;
									bullet.speedY = Math.sin(angle) * speed;
									enemyBullets.push(bullet);
									game.addChild(bullet);
								}
								LK.getSound('enemyShoot').play();
							}
						}
						// Particle animation for Enemy3/EnemyX/Enemy4/EnemyZ death (more particles, richer effect)
						var particleCount = e instanceof EnemyX ? 48 : e instanceof Enemy3 ? 24 : e instanceof EnemyZ ? 48 : 16;
						var assetName = e instanceof EnemyX ? 'enemyX' : e instanceof Enemy3 ? 'enemy3' : e instanceof EnemyZ ? 'EnemyZ' : 'Enemy4';
						for (var pi = 0; pi < particleCount; pi++) {
							var part = LK.getAsset(assetName, {
								anchorX: 0.5,
								anchorY: 0.5
							});
							part.x = enemyToDestroy.x;
							part.y = enemyToDestroy.y;
							part.width = (e instanceof EnemyX ? 48 : e instanceof Enemy3 ? 32 : e instanceof EnemyZ ? 48 : 24) + Math.random() * (e instanceof EnemyX ? 48 : e instanceof Enemy3 ? 32 : e instanceof EnemyZ ? 48 : 24);
							part.height = (e instanceof EnemyX ? 48 : e instanceof Enemy3 ? 32 : e instanceof EnemyZ ? 48 : 24) + Math.random() * (e instanceof EnemyX ? 48 : e instanceof Enemy3 ? 32 : e instanceof EnemyZ ? 48 : 24);
							part.alpha = 0.8 + Math.random() * 0.2;
							var angle = Math.PI * 2 * (pi / particleCount) + Math.random() * 0.2;
							var speed = (e instanceof EnemyX ? 24 : e instanceof Enemy3 ? 16 : e instanceof EnemyZ ? 24 : 12) + Math.random() * (e instanceof EnemyX ? 16 : e instanceof Enemy3 ? 12 : e instanceof EnemyZ ? 16 : 8);
							var vx = Math.cos(angle) * speed;
							var vy = Math.sin(angle) * speed;
							part.life = (e instanceof EnemyX ? 32 : e instanceof Enemy3 ? 16 : e instanceof EnemyZ ? 32 : 10) + Math.floor(Math.random() * (e instanceof EnemyX ? 32 : e instanceof Enemy3 ? 16 : e instanceof EnemyZ ? 32 : 8));
							part.update = function () {
								this.x += vx;
								this.y += vy;
								this.life--;
								this.alpha *= 0.90 + Math.random() * 0.04;
								if (this.life <= 0) {
									this.destroy();
								}
							};
							game.addChild(part);
						}
						// 35% chance to drop a health potion when Enemy3 is killed (not for EnemyX/Enemy4/EnemyZ)
						if (e instanceof Enemy3 && Math.random() < 0.35) {
							var healthPotion = new HealthPotion();
							healthPotion.x = enemyToDestroy.x;
							healthPotion.y = enemyToDestroy.y;
							items.push(healthPotion);
							game.addChild(healthPotion);
						}
						enemyToDestroy.destroy();
						enemies.splice(j, 1);
						// If EnemyX was killed, drop 3 health potions and restart normal enemy spawning
						if (e instanceof EnemyX) {
							for (var hp = 0; hp < 3; hp++) {
								var healthPotion = new HealthPotion();
								// Spread potions horizontally a bit
								healthPotion.x = enemyToDestroy.x - 60 + 60 * hp;
								healthPotion.y = enemyToDestroy.y;
								items.push(healthPotion);
								game.addChild(healthPotion);
							}
							// --- In boss mode, alternate to EnemyZ after EnemyX dies
							if (typeof bossMode !== "undefined" && bossMode) {
								enemyXSpawned = false;
								enemyZSpawned = false; // Allow next boss to spawn (EnemyZ)
								spawnTick = 0;
								bossNextToSpawn = "Z"; // Always alternate to Z after X dies
								// Music continues
							} else {
								// Reset boss state and allow normal enemies to spawn again
								enemyXSpawned = false;
								bossMusicPlayed = false;
								// Stop boss music and play bgmusic when EnemyX is killed
								LK.stopMusic();
								if (musicOn) {
									LK.playMusic('bgmusic');
								}
								// If score >= 250, mark EnemyX as killed so it never spawns again (not in boss mode)
								if (score >= 250 && !(typeof bossMode !== "undefined" && bossMode)) {
									enemyXKilledAfter250 = true;
								}
								// Reset spawnTick so normal enemies start coming again, but slowly
								spawnTick = 0;
								// Reset spawnIntervalNormal to its original value when resuming normal enemy spawns
								spawnIntervalNormal = 60;
								// Optionally, set a delay before next normal spawn (e.g. 60 frames)
								// spawnTick = -60;
							}
						}
						// If EnemyZ was killed, alternate to EnemyX after Z dies (boss mode)
						if (e instanceof EnemyZ && typeof bossMode !== "undefined" && bossMode) {
							enemyZSpawned = false;
							spawnTick = 0;
							bossNextToSpawn = "X"; // Always alternate to X after Z dies
						}
					} else {
						// Flash for hit, but don't destroy
						LK.effects.flashObject(e, 0x8e24aa, 120);
					}
					b.destroy();
					heroBullets.splice(i, 1);
					break;
				} else {
					// Handle laser ball kill count for normal enemies
					if (b instanceof LaserBall) {
						b.killCount++;
						// Only destroy laser ball after 2 kills or if it should be removed
						if (b.killCount >= b.maxKills) {
							b.destroy();
							heroBullets.splice(i, 1);
						}
					} else {
						// Regular bullets get destroyed after one hit
						b.destroy();
						heroBullets.splice(i, 1);
					}
					// Play death animation before destroying normal enemies
					var enemyToDestroy = e;
					// Particle animation for normal enemy death (more particles, richer effect)
					for (var pi = 0; pi < 16; pi++) {
						var part = LK.getAsset(enemyToDestroy instanceof Enemy1 ? 'enemy1' : 'enemy2', {
							anchorX: 0.5,
							anchorY: 0.5
						});
						part.x = enemyToDestroy.x;
						part.y = enemyToDestroy.y;
						part.width = 20 + Math.random() * 20;
						part.height = 20 + Math.random() * 20;
						part.alpha = 0.7 + Math.random() * 0.3;
						var angle = Math.PI * 2 * (pi / 16) + Math.random() * 0.2;
						var speed = 10 + Math.random() * 10;
						var vx = Math.cos(angle) * speed;
						var vy = Math.sin(angle) * speed;
						part.life = 10 + Math.floor(Math.random() * 10);
						part.update = function () {
							this.x += vx;
							this.y += vy;
							this.life--;
							this.alpha *= 0.88 + Math.random() * 0.06;
							if (this.life <= 0) {
								this.destroy();
							}
						};
						game.addChild(part);
					}
					enemyToDestroy.destroy();
					enemies.splice(j, 1);
					break;
				}
			}
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var e = enemies[i];
		if (typeof bossMode !== "undefined" && bossMode && e instanceof EnemyZ && e.hp <= 0) {
			enemyZSpawned = false;
			spawnTick = 0;
			bossNextToSpawn = "X"; // Always alternate to X after Z dies
		}
		e.update();
		// Remove if off screen
		if (e.y > 2732 + 100) {
			e.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Enemy shoots randomly
		if (Math.random() < 0.004 * speedMultiplier) {
			spawnEnemyBullet(e, hero.x, hero.y);
		}
		// Check collision with hero
		// Prevent hero from affecting or being affected by boss type enemies (EnemyX, EnemyZ)
		if (e instanceof EnemyX || e instanceof EnemyZ) {
			// Do nothing: hero does not affect or get hit by boss type enemies
			continue;
		}
		if (e.intersects(hero)) {
			if (godMode) {
				// In god mode, ignore all damage and just destroy enemy
				enemies[i].destroy();
				enemies.splice(i, 1);
				continue;
			}
			if (!shieldActive) {
				// Hero hit
				LK.getSound('heroHit').play();
				LK.effects.flashScreen(0xff0000, 800);
				heroHealth--;
				updateHealthBar();
				updateDemoHealthSquares && updateDemoHealthSquares();
				if (heroHealth <= 0) {
					// Game over
					if (scoreMode) {
						// Show custom nickname prompt overlay (gameover music will be handled there)
						showNicknamePrompt(function (nickname) {
							if (!nickname || typeof nickname !== "string" || nickname.trim().length === 0) {
								nickname = "Player";
							}
							LK.getSound('Death').play();
							// Return to main menu instead of game over
							returnToMainMenu();
						});
						return;
					} else {
						LK.getSound('Death').play();
						// Play gameover music once if not already played
						if (!gameoverMusicPlayed && musicOn) {
							LK.stopMusic();
							LK.playMusic('Gameover');
							gameoverMusicPlayed = true;
						}
						// Return to main menu instead of game over
						returnToMainMenu();
						return;
					}
				}
				enemies[i].destroy();
				enemies.splice(i, 1);
				continue;
			} else {
				// Shield absorbs hit, destroy enemy
				LK.effects.flashObject(hero, 0x00ffff, 200);
				// Play death animation before destroying enemy killed by shield
				var enemyToDestroy = e;
				// Particle animation for shield kill (more particles, richer effect)
				for (var pi = 0; pi < 16; pi++) {
					var part = LK.getAsset(enemyToDestroy instanceof Enemy1 ? 'enemy1' : enemyToDestroy instanceof Enemy2 ? 'enemy2' : 'enemy3', {
						anchorX: 0.5,
						anchorY: 0.5
					});
					part.x = enemyToDestroy.x;
					part.y = enemyToDestroy.y;
					part.width = 20 + Math.random() * 20;
					part.height = 20 + Math.random() * 20;
					part.alpha = 0.7 + Math.random() * 0.3;
					var angle = Math.PI * 2 * (pi / 16) + Math.random() * 0.2;
					var speed = 10 + Math.random() * 10;
					var vx = Math.cos(angle) * speed;
					var vy = Math.sin(angle) * speed;
					part.life = 10 + Math.floor(Math.random() * 10);
					part.update = function () {
						this.x += vx;
						this.y += vy;
						this.life--;
						this.alpha *= 0.88 + Math.random() * 0.06;
						if (this.life <= 0) {
							this.destroy();
						}
					};
					game.addChild(part);
				}
				enemyToDestroy.destroy();
				enemies.splice(i, 1);
				continue;
			}
		}
	}
	// Update enemy bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var b = enemyBullets[i];
		if (typeof bossMode !== "undefined" && bossMode && b instanceof EnemyBullet) {
			// Check if this bullet killed EnemyZ (shouldn't happen, but for completeness)
			for (var j = enemies.length - 1; j >= 0; j--) {
				var e = enemies[j];
				if (e instanceof EnemyZ && e.hp <= 0) {
					enemyZSpawned = false;
					spawnTick = 0;
					bossNextToSpawn = "X"; // Always alternate to X after Z dies
				}
			}
		}
		b.update();
		// Handle explosive bullets
		if (b.isExplosive && !b.hasExploded) {
			b.explosionTimer -= speedMultiplier;
			// Flash bullet red as it gets closer to exploding
			if (b.explosionTimer <= 6) {
				b.children[0].tint = 0xff0000;
			}
			// Explode when timer reaches 0 (0.2 seconds = 12 ticks at 60fps)
			if (b.explosionTimer <= 0) {
				b.hasExploded = true;
				// Create explosion visual effect
				var explosionEffect = LK.getAsset('enemyBullet', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: b.x,
					y: b.y,
					width: 100,
					height: 100,
					tint: 0xff8800
				});
				explosionEffect.alpha = 0.8;
				game.addChild(explosionEffect);
				// Animate explosion with tween
				tween(explosionEffect, {
					width: 400,
					height: 400,
					alpha: 0
				}, {
					duration: 800,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						explosionEffect.destroy();
					}
				});
				// Create 6 normal bullets flying in different directions
				for (var bulletIndex = 0; bulletIndex < 6; bulletIndex++) {
					var normalBullet = new EnemyBullet();
					normalBullet.x = b.x;
					normalBullet.y = b.y;
					// Calculate angle for 6 directions (60 degrees apart)
					var angle = bulletIndex * Math.PI * 2 / 6;
					var speed = 15;
					normalBullet.speedX = Math.cos(angle) * speed;
					normalBullet.speedY = Math.sin(angle) * speed;
					enemyBullets.push(normalBullet);
					game.addChild(normalBullet);
				}
				// Area damage to hero (reduced from original)
				var dx = hero.x - b.x;
				var dy = hero.y - b.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance <= b.explosionRadius) {
					if (!godMode && !shieldActive) {
						LK.getSound('heroHit').play();
						LK.effects.flashScreen(0xff0000, 800);
						heroHealth -= 1; // Reduced damage since bullets are now additional threat
						if (heroHealth < 0) {
							heroHealth = 0;
						}
						updateHealthBar();
						updateDemoHealthSquares && updateDemoHealthSquares();
						if (heroHealth <= 0) {
							// Game over
							if (scoreMode) {
								// Show custom nickname prompt overlay
								showNicknamePrompt(function (nickname) {
									if (!nickname || typeof nickname !== "string" || nickname.trim().length === 0) {
										nickname = "Player";
									}
									LK.getSound('Death').play();
									// Return to main menu instead of game over
									returnToMainMenu();
								});
								return;
							} else {
								LK.getSound('Death').play();
								// Play gameover music once if not already played
								if (!gameoverMusicPlayed && musicOn) {
									LK.stopMusic();
									LK.playMusic('Gameover');
									gameoverMusicPlayed = true;
								}
								// Return to main menu instead of game over
								returnToMainMenu();
								return;
							}
						}
					} else if (shieldActive) {
						LK.effects.flashObject(hero, 0x00ffff, 200);
					}
				}
				// Remove explosive bullet after explosion
				b.destroy();
				enemyBullets.splice(i, 1);
				continue;
			}
		}
		// Remove if off screen
		if (b.y < -60 || b.y > 2732 + 60 || b.x < -60 || b.x > 2048 + 60) {
			b.destroy();
			enemyBullets.splice(i, 1);
			continue;
		}
		// Check collision with hero
		if (b.intersects(hero)) {
			if (godMode) {
				// In god mode, ignore all damage and just destroy bullet
				b.destroy();
				enemyBullets.splice(i, 1);
				continue;
			}
			if (!shieldActive) {
				LK.getSound('heroHit').play();
				LK.effects.flashScreen(0xff0000, 800);
				heroHealth--;
				updateHealthBar();
				updateDemoHealthSquares && updateDemoHealthSquares();
				if (heroHealth <= 0) {
					// Game over
					if (scoreMode) {
						// Show custom nickname prompt overlay
						showNicknamePrompt(function (nickname) {
							if (!nickname || typeof nickname !== "string" || nickname.trim().length === 0) {
								nickname = "Player";
							}
							LK.getSound('Death').play();
							// Return to main menu instead of game over
							returnToMainMenu();
						});
						return;
					} else {
						LK.getSound('Death').play();
						// Play gameover music once if not already played
						if (!gameoverMusicPlayed && musicOn) {
							LK.stopMusic();
							LK.playMusic('Gameover');
							gameoverMusicPlayed = true;
						}
						// Return to main menu instead of game over
						returnToMainMenu();
						return;
					}
				}
				b.destroy();
				enemyBullets.splice(i, 1);
				continue;
			} else {
				// Shield absorbs bullet
				LK.effects.flashObject(hero, 0x00ffff, 120);
				b.destroy();
				enemyBullets.splice(i, 1);
				continue;
			}
		}
	}
	// --- ENEMY SPAWN RATE BOOST LOGIC ---
	if (typeof spawnRateBoostActive === "undefined") {
		var spawnRateBoostActive = false;
		var spawnRateBoostTimer = 0;
		var nextBoostScore = 50;
		var spawnIntervalNormal = 60;
		var spawnIntervalBoost = 30;
	}
	// Score mode: all enemy types, no bosses, gets harder by score
	if (typeof scoreMode !== "undefined" && scoreMode) {
		spawnTick += speedMultiplier;
		// Check if we reached a new boost score (50, 150, 250, ...) and trigger boost
		if (score >= nextBoostScore && !spawnRateBoostActive) {
			spawnRateBoostActive = true;
			spawnRateBoostTimer = 180; // 3 seconds at 60fps
			// After 50, next is 150, then 250, 350, ...
			if (nextBoostScore === 50) {
				nextBoostScore = 150;
			} else {
				nextBoostScore += 100;
			}
		}
		// Handle boost timer
		if (spawnRateBoostActive) {
			spawnRateBoostTimer -= speedMultiplier;
			if (spawnRateBoostTimer <= 0) {
				spawnRateBoostActive = false;
			}
		}
		// Calculate spawn interval based on score
		var baseInterval = spawnRateBoostActive ? spawnIntervalBoost : Math.max(18, spawnIntervalNormal - Math.floor(score / 20) * 2);
		var spawnInterval = score >= 600 ? Math.max(12, baseInterval - Math.floor((score - 600) / 30) * 2) : baseInterval;
		if (spawnTick >= spawnInterval) {
			// Calculate how many enemies to spawn based on score (1 + 1 per 50 score)
			var numEnemies = 1 + Math.floor(score / 50);
			for (var i = 0; i < numEnemies; i++) {
				spawnEnemy();
			}
			// 1 in 8 chance to spawn an item
			if (Math.random() < 0.125) {
				spawnItem();
			}
			spawnTick = 0;
		}
	}
	// Boss mode: alternate EnemyX and EnemyZ, never normal enemies or items
	else if (typeof bossMode !== "undefined" && bossMode) {
		spawnTick += speedMultiplier;
		// Track which boss to spawn next: "X" or "Z"
		if (typeof bossNextToSpawn === "undefined") {
			bossNextToSpawn = "X";
		}
		if (!enemyXSpawned && !enemyZSpawned && spawnTick >= 30) {
			var enemy;
			// Special case: at score 451, always spawn EnemyZ regardless of alternation
			if (score === 451) {
				enemy = new EnemyZ();
				enemy.x = 2048 / 2;
				enemy.y = -80;
				enemies.push(enemy);
				game.addChild(enemy);
				enemyZSpawned = true;
				bossNextToSpawn = "X"; // After Z, alternate to X
				spawnTick = 0;
			} else if (bossNextToSpawn === "X") {
				enemy = new EnemyX();
				enemy.x = 200 + Math.random() * (2048 - 400);
				enemy.y = -80;
				enemies.push(enemy);
				game.addChild(enemy);
				enemyXSpawned = true;
				// Do not alternate bossNextToSpawn here; alternate only on death
				spawnTick = 0;
			} else if (bossNextToSpawn === "Z") {
				enemy = new EnemyZ();
				enemy.x = 2048 / 2;
				enemy.y = -80;
				enemies.push(enemy);
				game.addChild(enemy);
				enemyZSpawned = true;
				// Do not alternate bossNextToSpawn here; alternate only on death
				spawnTick = 0;
			}
		}
		// Never spawn items or normal enemies in boss mode
	} else {
		// Check if we reached a new boost score (50, 150, 250, ...) and trigger boost
		if (score >= nextBoostScore && !spawnRateBoostActive) {
			spawnRateBoostActive = true;
			spawnRateBoostTimer = 180; // 3 seconds at 60fps
			// After 50, next is 150, then 250, 350, ...
			if (nextBoostScore === 50) {
				nextBoostScore = 150;
			} else {
				nextBoostScore += 100;
			}
		}
		// Handle boost timer
		if (spawnRateBoostActive) {
			spawnRateBoostTimer -= speedMultiplier;
			if (spawnRateBoostTimer <= 0) {
				spawnRateBoostActive = false;
			}
		}
		// Spawn enemies
		spawnTick += speedMultiplier;
		// Use boosted or normal interval
		// Make spawn rate scale more slowly with score (easier): decrease by 2 per 20 score, not 4 per 10
		// After 600 score, apply additional spawn rate increase
		var baseInterval = spawnRateBoostActive ? spawnIntervalBoost : Math.max(18, spawnIntervalNormal - Math.floor(score / 20) * 2);
		var spawnInterval = score >= 600 ? Math.max(12, baseInterval - Math.floor((score - 600) / 30) * 2) : baseInterval;
		if (score < 250) {
			if (spawnTick >= spawnInterval) {
				// Calculate how many enemies to spawn based on score (1 + 1 per 50 score)
				var numEnemies = 1 + Math.floor(score / 50);
				for (var i = 0; i < numEnemies; i++) {
					spawnEnemy();
				}
				// 1 in 8 chance to spawn an item
				if (Math.random() < 0.125) {
					spawnItem();
				}
				spawnTick = 0;
			}
		} else if (score >= 250) {
			// Stop current music and play boss music when score passes 250
			if (typeof bossMusicPlayed === "undefined") {
				var bossMusicPlayed = false;
			}
			if (!enemyXKilledAfter250) {
				// --- Ensure EnemyX spawns immediately after passing 250 score before any other enemies ---
				if (!enemyXSpawned) {
					// Only spawn EnemyX if not already present
					var enemy = new EnemyX();
					enemy.x = 200 + Math.random() * (2048 - 400);
					enemy.y = -80;
					enemies.push(enemy);
					game.addChild(enemy);
					enemyXSpawned = true;
					// Stop current music and play boss music when EnemyX spawns
					if (!bossMusicPlayed) {
						LK.stopMusic();
						if (musicOn) {
							LK.playMusic('Boss');
						}
						bossMusicPlayed = true;
					}
					spawnTick = 0;
				}
				// Do NOT spawn any other enemies or items until EnemyX is killed
				else {
					// Wait until EnemyX is killed before resuming normal spawns
					// (do nothing here)
				}
			} else {
				// EnemyX has been killed after 250 score, resume normal enemy and item spawns
				spawnTick++;
				// After score reaches 600, start to increase enemy spawn speed significantly
				var postBossSpawnInterval = 60;
				if (score >= 600) {
					// Decrease interval by 2 every 30 score above 600, minimum 12 (much faster spawn rate)
					postBossSpawnInterval = Math.max(12, 60 - Math.floor((score - 600) / 30) * 2);
				}
				// Always spawn exactly 1 enemy per postBossSpawnInterval ticks after EnemyX is killed post-250
				if (score < 800 && spawnTick >= postBossSpawnInterval) {
					spawnEnemy();
					// 1 in 8 chance to spawn an item
					if (Math.random() < 0.125) {
						spawnItem();
					}
					spawnTick = 0;
				} else if (score === 800 && !enemyZSpawned) {
					// Spawn EnemyZ at score 800
					var enemy = new EnemyZ();
					enemy.x = 2048 / 2;
					enemy.y = -80;
					enemies.push(enemy);
					game.addChild(enemy);
					enemyZSpawned = true;
					// Optionally play boss music if not already playing
					if (typeof bossMusicPlayed === "undefined" || !bossMusicPlayed) {
						LK.stopMusic();
						if (musicOn) {
							LK.playMusic('Boss');
						}
						bossMusicPlayed = true;
					}
					spawnTick = 0;
				}
			}
			// In god mode, also allow enemies to spawn after EnemyX is killed, just like normal mode
			if (godMode && enemyXKilledAfter250) {
				spawnTick++;
				var postBossSpawnInterval = 60;
				if (score >= 600) {
					// Use same aggressive spawn rate increase as normal mode
					postBossSpawnInterval = Math.max(12, 60 - Math.floor((score - 600) / 30) * 2);
				}
				if (score < 800 && spawnTick >= postBossSpawnInterval) {
					spawnEnemy();
					if (Math.random() < 0.125) {
						spawnItem();
					}
					spawnTick = 0;
				}
			}
			// In god mode, also apply increased spawn rate for pre-250 score enemies after 600 score
			if (godMode && score < 250 && score >= 600) {
				// Apply same spawn rate boost logic as normal mode for pre-250 enemies
				var baseInterval = spawnRateBoostActive ? spawnIntervalBoost : Math.max(18, spawnIntervalNormal - Math.floor(score / 20) * 2);
				var spawnInterval = Math.max(12, baseInterval - Math.floor((score - 600) / 30) * 2);
				if (spawnTick >= spawnInterval) {
					// Calculate how many enemies to spawn based on score (1 + 1 per 50 score)
					var numEnemies = 1 + Math.floor(score / 50);
					for (var i = 0; i < numEnemies; i++) {
						spawnEnemy();
					}
					// 1 in 8 chance to spawn an item
					if (Math.random() < 0.125) {
						spawnItem();
					}
					spawnTick = 0;
				}
			}
		}
	}
};
// --- CODE INPUT OVERLAY ---
function showCodeInput() {
	if (game.codeInputOverlay && game.codeInputOverlay.visible) {
		return;
	}
	var overlay = new Container();
	overlay.zIndex = 99999;
	// Semi-transparent background
	var bg = LK.getAsset('Menu', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	bg.width = 2048;
	bg.height = 2732;
	bg.alpha = 0.92;
	overlay.addChild(bg);
	// Title
	var title = new Text2("ENTER CODE", {
		size: 120,
		fill: "#fff",
		fontWeight: "bold"
	});
	title.anchor.set(0.5, 0);
	title.x = 2048 / 2;
	title.y = 800;
	overlay.addChild(title);
	// Code input display
	var codeInput = "";
	var maxLen = 4;
	var codeText = new Text2("____", {
		size: 150,
		fill: 0x00EAFF
	});
	codeText.anchor.set(0.5, 0.5);
	codeText.x = 2048 / 2;
	codeText.y = 1200;
	overlay.addChild(codeText);
	// On-screen number pad (3x4 grid: 1-9, 0, clear, OK)
	var numPadRows = [["1", "2", "3"], ["4", "5", "6"], ["7", "8", "9"], ["C", "0", "OK"]];
	var keyButtons = [];
	var keySize = 180;
	var keySpacing = 30;
	var startY = 1400;
	for (var row = 0; row < numPadRows.length; row++) {
		var keysInRow = numPadRows[row];
		var rowWidth = keysInRow.length * keySize + (keysInRow.length - 1) * keySpacing;
		var startX = 2048 / 2 - rowWidth / 2 + keySize / 2;
		var y = startY + row * (keySize + keySpacing);
		for (var col = 0; col < keysInRow.length; col++) {
			var key = keysInRow[col];
			var keyBg = LK.getAsset('Button', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			keyBg.width = keySize;
			keyBg.height = keySize;
			keyBg.alpha = 0.7;
			keyBg.x = startX + col * (keySize + keySpacing);
			keyBg.y = y;
			overlay.addChild(keyBg);
			var keyTxt = new Text2(key, {
				size: 80,
				fill: "#fff",
				fontWeight: "bold"
			});
			keyTxt.anchor.set(0.5, 0.5);
			keyTxt.x = keyBg.x;
			keyTxt.y = keyBg.y;
			overlay.addChild(keyTxt);
			keyButtons.push({
				bg: keyBg,
				txt: keyTxt,
				key: key
			});
		}
	}
	// Button interaction
	overlay.down = function (x, y, obj) {
		for (var i = 0; i < keyButtons.length; i++) {
			var btn = keyButtons[i];
			var dx = x - btn.bg.x;
			var dy = y - btn.bg.y;
			if (Math.abs(dx) <= btn.bg.width / 2 && Math.abs(dy) <= btn.bg.height / 2) {
				if (btn.key === "OK") {
					// Process code
					if (codeInput === "3131") {
						// Reset all purchases and set coins to 0
						storage.laserBeamPurchased = false;
						storage.solarWavePurchased = false;
						storage.greatShieldPurchased = false;
						shopItems[0].purchased = false;
						shopItems[1].purchased = false;
						shopItems[2].purchased = false;
						coins = 0;
						storage.coins = coins;
						coinsTxt.setText('Coins: ' + coins);
						// Hide purchased abilities UI elements immediately
						beamBtn.visible = false;
						beamBtn.bg.visible = false;
						beamBtnOverlay.visible = false;
						waveBtn.visible = false;
						waveBtn.bg.visible = false;
						waveBtnOverlay.visible = false;
					} else if (codeInput === "6262") {
						// Add 5000 coins
						coins += 5000;
						storage.coins = coins;
						coinsTxt.setText('Coins: ' + coins);
					}
					overlay.visible = false;
					if (game.codeInputOverlay) {
						game.removeChild(game.codeInputOverlay);
						game.codeInputOverlay = null;
					}
					// Refresh shop menu display
					if (shopMenuOverlay && shopMenuOverlay.visible) {
						shopMenuOverlay.visible = false;
						showShopMenu();
					}
					return;
				} else if (btn.key === "C") {
					// Clear input
					codeInput = "";
					var displayText = "";
					for (var j = 0; j < maxLen; j++) {
						if (j < codeInput.length) {
							displayText += codeInput[j];
						} else {
							displayText += "_";
						}
					}
					codeText.setText(displayText);
				} else {
					// Add digit
					if (codeInput.length < maxLen) {
						codeInput += btn.key;
						var displayText = "";
						for (var j = 0; j < maxLen; j++) {
							if (j < codeInput.length) {
								displayText += codeInput[j];
							} else {
								displayText += "_";
							}
						}
						codeText.setText(displayText);
					}
				}
				break;
			}
		}
	};
	// Add overlay to game and track
	game.addChild(overlay);
	game.codeInputOverlay = overlay;
}