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

/**** 
* Classes
****/ 
var BossZombie = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('bossZombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0.5;
	self.health = 500;
	self.damage = 25;
	self.target = null;
	self.attackTimer = 0;
	self.frozen = 0;
	self.update = function () {
		if (self.frozen > 0) {
			self.frozen--;
			bossGraphics.tint = 0x87CEEB;
			self.speed = 0.25;
		} else {
			bossGraphics.tint = 0xFFFFFF;
			self.speed = 0.5;
		}
		if (!self.target || self.target.destroyed) {
			self.findTarget();
		}
		if (self.target) {
			var dx = self.target.x - self.x;
			var dy = self.target.y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist > 60) {
				self.x += dx / dist * self.speed;
				self.y += dy / dist * self.speed;
			} else {
				self.attackTimer++;
				if (self.attackTimer >= 45) {
					self.attackTimer = 0;
					if (self.target.takeDamage) {
						if (self.target.takeDamage(self.damage)) {
							self.target = null;
						}
					}
				}
			}
		} else {
			self.x += self.speed;
			if (self.x > 2048) {
				lives -= 5;
				self.destroy();
			}
		}
	};
	self.findTarget = function () {
		var minDist = Infinity;
		self.target = null;
		// Prioritize houses first
		for (var i = 0; i < houses.length; i++) {
			// Create a virtual target point spread across the house width
			var houseLeft = houses[i].x - 1024; // Left edge of house
			var houseRight = houses[i].x + 1024; // Right edge of house
			var targetX = Math.max(houseLeft, Math.min(houseRight, self.x)); // Clamp zombie x to house width
			var dx = targetX - self.x;
			var dy = houses[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < minDist) {
				minDist = dist;
				self.target = {
					x: targetX,
					y: houses[i].y,
					takeDamage: houses[i].takeDamage.bind(houses[i]),
					destroyed: houses[i].destroyed
				};
			}
		}
		// Skip solar collectors and towers - they are not targeted by boss zombies
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			LK.setScore(LK.getScore() + 100);
			LK.getSound('zombieDeath').play();
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFFFFFF, 200);
		return false;
	};
	self.freeze = function () {
		self.frozen = 120;
	};
	return self;
});
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.damage = 15;
	self.targetX = 0;
	self.targetY = 0;
	self.update = function () {
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist > 5) {
			self.x += dx / dist * self.speed;
			self.y += dy / dist * self.speed;
		} else {
			// Hit target area, check for zombie collision
			for (var i = 0; i < zombies.length; i++) {
				var zdx = zombies[i].x - self.x;
				var zdy = zombies[i].y - self.y;
				var zdist = Math.sqrt(zdx * zdx + zdy * zdy);
				if (zdist < 30) {
					zombies[i].takeDamage(self.damage);
					self.destroy();
					return;
				}
			}
			self.destroy();
		}
	};
	return self;
});
var ClassicTurret = Container.expand(function () {
	var self = Container.call(this);
	var tower = self.attachAsset('classicTurret', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.damage = 15;
	self.range = 180;
	self.fireRate = 45;
	self.fireTimer = 0;
	self.health = 120;
	self.maxHealth = 120;
	self.update = function () {
		self.fireTimer++;
		if (self.fireTimer >= self.fireRate) {
			self.fireTimer = 0;
			self.findAndShoot();
		}
	};
	self.findAndShoot = function () {
		var target = null;
		var minDist = self.range;
		for (var i = 0; i < zombies.length; i++) {
			var dx = zombies[i].x - self.x;
			var dy = zombies[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < minDist) {
				minDist = dist;
				target = zombies[i];
			}
		}
		if (target) {
			// Aim turret at target
			var dx = target.x - self.x;
			var dy = target.y - self.y;
			var angle = Math.atan2(dy, dx) + Math.PI / 2;
			self.children[0].rotation = angle;
			self.shootBullet(target);
		}
	};
	self.shootBullet = function (target) {
		LK.getSound('laser').play();
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullet.targetX = target.x;
		bullet.targetY = target.y;
		bullet.damage = self.damage;
		game.addChild(bullet);
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var DoubleBarrelTurret = Container.expand(function () {
	var self = Container.call(this);
	var tower = self.attachAsset('doubleBarrelTurret', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.damage = 12;
	self.range = 200;
	self.fireRate = 35;
	self.fireTimer = 0;
	self.health = 140;
	self.maxHealth = 140;
	self.update = function () {
		self.fireTimer++;
		if (self.fireTimer >= self.fireRate) {
			self.fireTimer = 0;
			self.findAndShoot();
		}
	};
	self.findAndShoot = function () {
		var targets = [];
		// Find all zombies in range and sort by distance
		var zombiesInRange = [];
		for (var i = 0; i < zombies.length; i++) {
			var dx = zombies[i].x - self.x;
			var dy = zombies[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < self.range) {
				zombiesInRange.push({
					zombie: zombies[i],
					distance: dist
				});
			}
		}
		// Sort by distance and take closest 2
		zombiesInRange.sort(function (a, b) {
			return a.distance - b.distance;
		});
		for (var i = 0; i < Math.min(2, zombiesInRange.length); i++) {
			targets.push(zombiesInRange[i].zombie);
		}
		if (targets.length > 0) {
			// Aim at closest target
			var dx = targets[0].x - self.x;
			var dy = targets[0].y - self.y;
			var angle = Math.atan2(dy, dx) + Math.PI / 2;
			self.children[0].rotation = angle;
			// Shoot two bullets
			for (var i = 0; i < targets.length; i++) {
				self.shootBullet(targets[i]);
			}
		}
	};
	self.shootBullet = function (target) {
		LK.getSound('laser').play();
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullet.targetX = target.x;
		bullet.targetY = target.y;
		bullet.damage = self.damage;
		game.addChild(bullet);
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var ExplosiveTower = Container.expand(function () {
	var self = Container.call(this);
	var tower = self.attachAsset('explosiveTower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.damage = 50;
	self.range = 200;
	self.explosionRange = 100;
	self.fireRate = 90;
	self.fireTimer = 0;
	self.health = 120;
	self.maxHealth = 120;
	self.update = function () {
		self.fireTimer++;
		if (self.fireTimer >= self.fireRate) {
			self.fireTimer = 0;
			self.findAndExplode();
		}
	};
	self.findAndExplode = function () {
		var target = null;
		var minDist = self.range;
		for (var i = 0; i < zombies.length; i++) {
			var dx = zombies[i].x - self.x;
			var dy = zombies[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < minDist) {
				minDist = dist;
				target = zombies[i];
			}
		}
		if (target) {
			self.explode(target.x, target.y);
		}
	};
	self.explode = function (x, y) {
		LK.getSound('explode').play();
		var explosion = game.addChild(LK.getAsset('explosion', {
			anchorX: 0.5,
			anchorY: 0.5
		}));
		explosion.x = x;
		explosion.y = y;
		explosion.alpha = 0.8;
		tween(explosion, {
			alpha: 0,
			scaleX: 2,
			scaleY: 2
		}, {
			duration: 300,
			onFinish: function onFinish() {
				explosion.destroy();
			}
		});
		for (var i = 0; i < zombies.length; i++) {
			var dx = zombies[i].x - x;
			var dy = zombies[i].y - y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < self.explosionRange) {
				zombies[i].takeDamage(self.damage);
			}
		}
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var FreezeTower = Container.expand(function () {
	var self = Container.call(this);
	var tower = self.attachAsset('freezeTower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.range = 150;
	self.fireRate = 120;
	self.fireTimer = 0;
	self.health = 100;
	self.maxHealth = 100;
	self.update = function () {
		self.fireTimer++;
		if (self.fireTimer >= self.fireRate) {
			self.fireTimer = 0;
			self.freezeArea();
		}
	};
	self.freezeArea = function () {
		LK.getSound('freeze').play();
		for (var i = 0; i < zombies.length; i++) {
			var dx = zombies[i].x - self.x;
			var dy = zombies[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < self.range) {
				zombies[i].freeze();
			}
		}
		var freezeEffect = self.attachAsset('explosion', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		freezeEffect.tint = 0x00BFFF;
		freezeEffect.alpha = 0.5;
		freezeEffect.width = self.range * 2;
		freezeEffect.height = self.range * 2;
		tween(freezeEffect, {
			alpha: 0,
			scaleX: 1.5,
			scaleY: 1.5
		}, {
			duration: 500,
			onFinish: function onFinish() {
				freezeEffect.destroy();
			}
		});
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var House = Container.expand(function () {
	var self = Container.call(this);
	var houseGraphics = self.attachAsset('house', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Scale house to span the width of the screen
	houseGraphics.width = 2048; // Full screen width
	houseGraphics.height = 100; // Keep original height
	self.health = 500; // Increased health since it's the only house
	self.maxHealth = 500;
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			lives -= 10; // Lose more lives when the main house is destroyed
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var LaserTower = Container.expand(function () {
	var self = Container.call(this);
	var tower = self.attachAsset('laserTower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.damage = 20;
	self.range = 200;
	self.fireRate = 30;
	self.fireTimer = 0;
	self.health = 150;
	self.maxHealth = 150;
	self.update = function () {
		self.fireTimer++;
		if (self.fireTimer >= self.fireRate) {
			self.fireTimer = 0;
			self.findAndShoot();
		}
	};
	self.findAndShoot = function () {
		var target = null;
		var minDist = self.range;
		for (var i = 0; i < zombies.length; i++) {
			var dx = zombies[i].x - self.x;
			var dy = zombies[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < minDist) {
				minDist = dist;
				target = zombies[i];
			}
		}
		if (target) {
			self.shootLaser(target);
		}
	};
	self.shootLaser = function (target) {
		LK.getSound('laser').play();
		var laser = self.attachAsset('laserBeam', {
			anchorX: 0.5,
			anchorY: 1
		});
		var dx = target.x - self.x;
		var dy = target.y - self.y;
		var angle = Math.atan2(dy, dx) + Math.PI / 2;
		laser.rotation = angle;
		var dist = Math.sqrt(dx * dx + dy * dy);
		laser.height = dist;
		tween(laser, {
			alpha: 0
		}, {
			duration: 200,
			onFinish: function onFinish() {
				laser.destroy();
			}
		});
		target.takeDamage(self.damage);
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var SolarCollector = Container.expand(function () {
	var self = Container.call(this);
	var collector = self.attachAsset('solarCollector', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.energyRate = 1;
	self.health = 100;
	self.maxHealth = 100;
	self.isDaytime = true;
	self.energyTimer = 0;
	self.energyGenerationTime = Math.floor(Math.random() * 300) + 600; // Random 10-15 seconds (600-900 frames at 60fps)
	self.update = function () {
		self.energyTimer++;
		if (self.energyTimer >= self.energyGenerationTime) {
			self.energyTimer = 0;
			// Set new random interval for next generation
			self.energyGenerationTime = Math.floor(Math.random() * 300) + 600; // Random 10-15 seconds
			var energyGain = 20;
			energy += energyGain;
			LK.getSound('collect').play();
			var energyText = new Text2('+' + energyGain, {
				size: 30,
				fill: 0xFFD700
			});
			energyText.anchor.set(0.5, 0.5);
			energyText.x = 0;
			energyText.y = -40;
			self.addChild(energyText);
			tween(energyText, {
				y: -80,
				alpha: 0
			}, {
				duration: 1000,
				onFinish: function onFinish() {
					energyText.destroy();
				}
			});
		}
		collector.tint = self.isDaytime ? 0xFFD700 : 0xB8860B;
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var TripleBarrelTurret = Container.expand(function () {
	var self = Container.call(this);
	var tower = self.attachAsset('tripleBarrelTurret', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.damage = 10;
	self.range = 220;
	self.fireRate = 30;
	self.fireTimer = 0;
	self.health = 160;
	self.maxHealth = 160;
	self.update = function () {
		self.fireTimer++;
		if (self.fireTimer >= self.fireRate) {
			self.fireTimer = 0;
			self.findAndShoot();
		}
	};
	self.findAndShoot = function () {
		var targets = [];
		// Find all zombies in range and sort by distance
		var zombiesInRange = [];
		for (var i = 0; i < zombies.length; i++) {
			var dx = zombies[i].x - self.x;
			var dy = zombies[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < self.range) {
				zombiesInRange.push({
					zombie: zombies[i],
					distance: dist
				});
			}
		}
		// Sort by distance and take closest 3
		zombiesInRange.sort(function (a, b) {
			return a.distance - b.distance;
		});
		for (var i = 0; i < Math.min(3, zombiesInRange.length); i++) {
			targets.push(zombiesInRange[i].zombie);
		}
		if (targets.length > 0) {
			// Aim at closest target
			var dx = targets[0].x - self.x;
			var dy = targets[0].y - self.y;
			var angle = Math.atan2(dy, dx) + Math.PI / 2;
			self.children[0].rotation = angle;
			// Shoot three bullets
			for (var i = 0; i < targets.length; i++) {
				self.shootBullet(targets[i]);
			}
		}
	};
	self.shootBullet = function (target) {
		LK.getSound('laser').play();
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullet.targetX = target.x;
		bullet.targetY = target.y;
		bullet.damage = self.damage;
		game.addChild(bullet);
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFF0000, 300);
		return false;
	};
	return self;
});
var Zombie = Container.expand(function () {
	var self = Container.call(this);
	var zombieGraphics = self.attachAsset('zombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1;
	self.health = 50;
	self.damage = 10;
	self.target = null;
	self.attackTimer = 0;
	self.frozen = 0;
	self.update = function () {
		if (self.frozen > 0) {
			self.frozen--;
			zombieGraphics.tint = 0x87CEEB;
			self.speed = 0.5;
		} else {
			zombieGraphics.tint = 0xFFFFFF;
			self.speed = 1;
		}
		if (!self.target || self.target.destroyed) {
			self.findTarget();
		}
		if (self.target) {
			var dx = self.target.x - self.x;
			var dy = self.target.y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist > 50) {
				self.x += dx / dist * self.speed;
				self.y += dy / dist * self.speed;
			} else {
				self.attackTimer++;
				if (self.attackTimer >= 60) {
					self.attackTimer = 0;
					if (self.target.takeDamage) {
						if (self.target.takeDamage(self.damage)) {
							self.target = null;
						}
					}
				}
			}
		} else {
			// Move towards bottom of screen when no target
			self.y += self.speed;
			if (self.y > 2732) {
				lives--;
				self.destroy();
			}
		}
	};
	self.findTarget = function () {
		var minDist = Infinity;
		self.target = null;
		// Prioritize houses first
		for (var i = 0; i < houses.length; i++) {
			// Create a virtual target point spread across the house width
			var houseLeft = houses[i].x - 1024; // Left edge of house
			var houseRight = houses[i].x + 1024; // Right edge of house
			var targetX = Math.max(houseLeft, Math.min(houseRight, self.x)); // Clamp zombie x to house width
			var dx = targetX - self.x;
			var dy = houses[i].y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < minDist) {
				minDist = dist;
				self.target = {
					x: targetX,
					y: houses[i].y,
					takeDamage: houses[i].takeDamage.bind(houses[i]),
					destroyed: houses[i].destroyed
				};
			}
		}
		// Skip solar collectors and towers - they are not targeted by zombies
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			LK.setScore(LK.getScore() + 10);
			LK.getSound('zombieDeath').play();
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xFFFFFF, 200);
		return false;
	};
	self.freeze = function () {
		self.frozen = 180;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
var energy = 100;
var wave = 0;
var lives = 20;
var isDaytime = true;
var dayTimer = 0;
var waveTimer = 0;
var zombieSpawnTimer = 0;
var zombiesPerWave = 5;
var zombiesToSpawn = 0;
var bossProgress = 0;
var bossProgressMax = 1000; // Will be 300 seconds at 60fps with new increment rate
var currentStage = 1;
var bossActive = false;
var difficultyMultiplier = 1;
var easyPeriodTimer = 0;
var easyPeriodDuration = 2100; // 35 seconds at 60fps
var isEasyPeriod = true;
var solarCollectors = [];
var towers = [];
var zombies = [];
var houses = [];
var gridCells = [];
var selectedTower = null;
var placementMode = false;
var placementCost = 0;
var dragging = false;
var dragTurret = null;
var GRID_SIZE = 120;
var GRID_COLS = Math.floor(2048 / GRID_SIZE);
var GRID_ROWS = Math.floor(2000 / GRID_SIZE);
var energyText = new Text2('Energy: ' + energy, {
	size: 60,
	fill: 0xFFD700
});
energyText.anchor.set(0.5, 0);
LK.gui.top.addChild(energyText);
var waveText = new Text2('Wave: ' + wave, {
	size: 50,
	fill: 0xFFFFFF
});
waveText.anchor.set(0, 0);
waveText.x = -900;
waveText.y = 100;
LK.gui.top.addChild(waveText);
var livesText = new Text2('Lives: ' + lives, {
	size: 50,
	fill: 0xFF0000
});
livesText.anchor.set(1, 0);
livesText.x = 900;
livesText.y = 100;
LK.gui.top.addChild(livesText);
var dayText = new Text2('Day', {
	size: 40,
	fill: 0xFFD700
});
dayText.anchor.set(0.5, 0);
dayText.y = 80;
LK.gui.top.addChild(dayText);
var progressBarBg = LK.getAsset('progressBarBg', {
	anchorX: 0.5,
	anchorY: 0.5
});
progressBarBg.x = 0;
progressBarBg.y = 150;
LK.gui.top.addChild(progressBarBg);
var progressBarFill = LK.getAsset('progressBarFill', {
	anchorX: 0,
	anchorY: 0.5
});
progressBarFill.x = -200;
progressBarFill.y = 150;
progressBarFill.width = 0;
LK.gui.top.addChild(progressBarFill);
var progressText = new Text2('Boss Progress', {
	size: 30,
	fill: 0xFFFFFF
});
progressText.anchor.set(0.5, 0.5);
progressText.x = 0;
progressText.y = 180;
LK.gui.top.addChild(progressText);
var stageText = new Text2('Stage: 1', {
	size: 35,
	fill: 0xFFD700
});
stageText.anchor.set(0, 0);
stageText.x = -900;
stageText.y = 150;
LK.gui.top.addChild(stageText);
var solarButton = new Container();
var solarButtonBg = solarButton.attachAsset('solarCollector', {
	anchorX: 0.5,
	anchorY: 0.5
});
solarButtonBg.width = 100;
solarButtonBg.height = 100;
var solarButtonText = new Text2('Solar: 25', {
	size: 25,
	fill: 0xFFD700
});
solarButtonText.anchor.set(0.5, 0.5);
solarButtonText.y = -60;
solarButton.addChild(solarButtonText);
solarButton.x = -300;
LK.gui.bottom.addChild(solarButton);
var classicButton = new Container();
var classicButtonBg = classicButton.attachAsset('classicTurret', {
	anchorX: 0.5,
	anchorY: 0.5
});
classicButtonBg.width = 100;
classicButtonBg.height = 100;
var classicButtonText = new Text2('Solar: 50', {
	size: 25,
	fill: 0xFFD700
});
classicButtonText.anchor.set(0.5, 0.5);
classicButtonText.y = -60;
classicButton.addChild(classicButtonText);
classicButton.x = -100;
LK.gui.bottom.addChild(classicButton);
var doubleButton = new Container();
var doubleButtonBg = doubleButton.attachAsset('doubleBarrelTurret', {
	anchorX: 0.5,
	anchorY: 0.5
});
doubleButtonBg.width = 100;
doubleButtonBg.height = 100;
var doubleButtonText = new Text2('Solar: 75', {
	size: 25,
	fill: 0xFFD700
});
doubleButtonText.anchor.set(0.5, 0.5);
doubleButtonText.y = -60;
doubleButton.addChild(doubleButtonText);
doubleButton.x = 100;
LK.gui.bottom.addChild(doubleButton);
var tripleButton = new Container();
var tripleButtonBg = tripleButton.attachAsset('tripleBarrelTurret', {
	anchorX: 0.5,
	anchorY: 0.5
});
tripleButtonBg.width = 100;
tripleButtonBg.height = 100;
var tripleButtonText = new Text2('Solar: 100', {
	size: 25,
	fill: 0xFFD700
});
tripleButtonText.anchor.set(0.5, 0.5);
tripleButtonText.y = -60;
tripleButton.addChild(tripleButtonText);
tripleButton.x = 300;
LK.gui.bottom.addChild(tripleButton);
for (var row = 0; row < GRID_ROWS; row++) {
	for (var col = 0; col < GRID_COLS; col++) {
		var cell = game.addChild(LK.getAsset('gridCell', {
			anchorX: 0,
			anchorY: 0
		}));
		cell.x = col * GRID_SIZE;
		cell.y = row * GRID_SIZE + 200;
		cell.alpha = 0.1;
		cell.gridX = col;
		cell.gridY = row;
		cell.occupied = false;
		gridCells.push(cell);
	}
}
// Create single house spanning the bottom of screen
var house = new House();
house.x = 1024; // Center of screen width (2048/2)
house.y = 2500;
houses.push(house);
game.addChild(house);
solarButton.down = function (x, y, obj) {
	if (energy < 25) {
		// Flash button red to indicate insufficient energy
		LK.effects.flashObject(solarButton, 0xff0000, 300);
		return;
	}
	dragging = true;
	selectedTower = 'solar';
	placementCost = 25;
	dragTurret = game.addChild(LK.getAsset('solarCollector', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	dragTurret.width = 120;
	dragTurret.height = 120;
	dragTurret.alpha = 0.8;
	// Convert GUI position to game coordinates
	var globalPos = game.toLocal({
		x: solarButton.x,
		y: solarButton.y
	});
	dragTurret.x = globalPos.x;
	dragTurret.y = globalPos.y;
	// Flash button green to indicate drag started
	LK.effects.flashObject(solarButton, 0x00ff00, 200);
};
classicButton.down = function (x, y, obj) {
	if (energy < 50) return;
	dragging = true;
	selectedTower = 'classic';
	placementCost = 50;
	dragTurret = game.addChild(LK.getAsset('classicTurret', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	dragTurret.width = 60;
	dragTurret.height = 60;
	dragTurret.alpha = 0.7;
	// Convert GUI position to game coordinates
	var globalPos = game.toLocal({
		x: classicButton.x,
		y: classicButton.y
	});
	dragTurret.x = globalPos.x;
	dragTurret.y = globalPos.y;
};
doubleButton.down = function (x, y, obj) {
	if (energy < 75) return;
	dragging = true;
	selectedTower = 'double';
	placementCost = 75;
	dragTurret = game.addChild(LK.getAsset('doubleBarrelTurret', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	dragTurret.width = 60;
	dragTurret.height = 60;
	dragTurret.alpha = 0.7;
	// Convert GUI position to game coordinates
	var globalPos = game.toLocal({
		x: doubleButton.x,
		y: doubleButton.y
	});
	dragTurret.x = globalPos.x;
	dragTurret.y = globalPos.y;
};
tripleButton.down = function (x, y, obj) {
	if (energy < 100) return;
	dragging = true;
	selectedTower = 'triple';
	placementCost = 100;
	dragTurret = game.addChild(LK.getAsset('tripleBarrelTurret', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	dragTurret.width = 60;
	dragTurret.height = 60;
	dragTurret.alpha = 0.7;
	// Convert GUI position to game coordinates
	var globalPos = game.toLocal({
		x: tripleButton.x,
		y: tripleButton.y
	});
	dragTurret.x = globalPos.x;
	dragTurret.y = globalPos.y;
};
function highlightValidCells(show) {
	for (var i = 0; i < gridCells.length; i++) {
		if (!gridCells[i].occupied) {
			gridCells[i].alpha = show ? 0.3 : 0.1;
			gridCells[i].tint = show ? 0x00ff00 : 0xffffff;
		} else {
			gridCells[i].alpha = show ? 0.2 : 0.1;
			gridCells[i].tint = show ? 0xff0000 : 0xffffff;
		}
	}
}
game.down = function (x, y, obj) {
	// Allow starting drag from anywhere in the game area when not already dragging
	if (!dragging) {
		// Check if we clicked near any existing turret buttons area
		var buttonAreaY = 2732 - 200; // Near bottom of screen
		if (y > buttonAreaY) {
			// Near button area, let button handlers manage this
			return;
		}
	}
};
game.move = function (x, y, obj) {
	if (dragging && dragTurret) {
		dragTurret.x = x;
		dragTurret.y = y;
		highlightValidCells(true);
		// Show visual feedback for valid placement area
		var gridX = Math.floor(x / GRID_SIZE);
		var gridY = Math.floor((y - 200) / GRID_SIZE);
		if (gridX >= 0 && gridX < GRID_COLS && gridY >= 0 && gridY < GRID_ROWS) {
			var cellIndex = gridY * GRID_COLS + gridX;
			if (!gridCells[cellIndex].occupied) {
				dragTurret.tint = 0x00ff00; // Green tint for valid placement
				dragTurret.alpha = 0.8;
			} else {
				dragTurret.tint = 0xff0000; // Red tint for invalid placement
				dragTurret.alpha = 0.5;
			}
		} else {
			dragTurret.tint = 0xff0000; // Red tint for out of bounds
			dragTurret.alpha = 0.5;
		}
	}
};
game.up = function (x, y, obj) {
	if (dragging && dragTurret) {
		highlightValidCells(false);
		var gridX = Math.floor(x / GRID_SIZE);
		var gridY = Math.floor((y - 200) / GRID_SIZE);
		var validPlacement = false;
		// Expanded validation - check if within game bounds and valid grid
		if (gridX >= 0 && gridX < GRID_COLS && gridY >= 0 && gridY < GRID_ROWS) {
			var cellIndex = gridY * GRID_COLS + gridX;
			if (!gridCells[cellIndex].occupied && energy >= placementCost) {
				validPlacement = true;
				energy -= placementCost;
				gridCells[cellIndex].occupied = true;
				var newX = gridX * GRID_SIZE + GRID_SIZE / 2;
				var newY = gridY * GRID_SIZE + GRID_SIZE / 2 + 200;
				if (selectedTower === 'solar') {
					var collector = new SolarCollector();
					collector.x = newX;
					collector.y = newY;
					solarCollectors.push(collector);
					game.addChild(collector);
				} else if (selectedTower === 'classic') {
					var tower = new ClassicTurret();
					tower.x = newX;
					tower.y = newY;
					towers.push(tower);
					game.addChild(tower);
				} else if (selectedTower === 'double') {
					var tower = new DoubleBarrelTurret();
					tower.x = newX;
					tower.y = newY;
					towers.push(tower);
					game.addChild(tower);
				} else if (selectedTower === 'triple') {
					var tower = new TripleBarrelTurret();
					tower.x = newX;
					tower.y = newY;
					towers.push(tower);
					game.addChild(tower);
				}
				LK.getSound('build').play();
				// Flash effect for successful placement
				LK.effects.flashObject(dragTurret, 0x00ff00, 300);
			} else {
				// Invalid placement - show error feedback
				LK.effects.flashObject(dragTurret, 0xff0000, 300);
			}
		} else {
			// Out of bounds - show error feedback
			LK.effects.flashObject(dragTurret, 0xff0000, 300);
		}
		// Clean up drag state
		dragTurret.destroy();
		dragTurret = null;
		dragging = false;
		selectedTower = null;
		placementCost = 0;
	}
};
function spawnZombie(isBoss) {
	var zombie;
	if (isBoss) {
		zombie = new BossZombie();
		zombie.health *= difficultyMultiplier;
		zombie.damage = Math.floor(zombie.damage * difficultyMultiplier);
		bossActive = true;
	} else {
		zombie = new Zombie();
		if (!isEasyPeriod) {
			zombie.health = Math.floor(zombie.health * difficultyMultiplier);
			zombie.damage = Math.floor(zombie.damage * difficultyMultiplier);
			zombie.speed *= Math.min(difficultyMultiplier * 0.3 + 0.7, 2);
		}
	}
	// Spawn only from top of screen
	zombie.x = Math.random() * 2048;
	zombie.y = 150;
	zombies.push(zombie);
	game.addChild(zombie);
}
function onBossDefeated() {
	bossActive = false;
	bossProgress = 0;
	currentStage++;
	difficultyMultiplier += 0.5;
	// Switch day/night cycle
	isDaytime = !isDaytime;
	dayText.setText(isDaytime ? 'Day' : 'Night');
	dayText.tint = isDaytime ? 0xFFD700 : 0x4169E1;
	game.setBackgroundColor(isDaytime ? 0x87CEEB : 0x191970);
	// Update solar collectors
	for (var i = 0; i < solarCollectors.length; i++) {
		solarCollectors[i].isDaytime = isDaytime;
	}
	// Flash screen effect for stage transition
	LK.effects.flashScreen(isDaytime ? 0xFFD700 : 0x191970, 1000);
	// Increase boss progress requirement by 25 seconds (1500 frames at 60fps)
	bossProgressMax += 84; // 25 seconds * 60fps * 0.056 increment = ~84 progress units
}
game.update = function () {
	// Handle easy period for new players
	if (isEasyPeriod) {
		easyPeriodTimer++;
		if (easyPeriodTimer >= easyPeriodDuration) {
			isEasyPeriod = false;
		}
	}
	// Update progress bar based on time and zombie kills
	if (!bossActive) {
		var progressIncrease = isEasyPeriod ? 0.028 : 0.056; // Reduced to make 300 seconds initially
		bossProgress += progressIncrease;
		// Check if boss should spawn
		if (bossProgress >= bossProgressMax) {
			spawnZombie(true);
		}
	}
	// Update progress bar visual
	var progressPercent = Math.min(bossProgress / bossProgressMax, 1);
	progressBarFill.width = 400 * progressPercent;
	// Change progress bar color based on proximity to boss
	if (progressPercent > 0.8) {
		progressBarFill.tint = 0xff0000; // Red when close to boss
	} else if (progressPercent > 0.6) {
		progressBarFill.tint = 0xffaa00; // Orange
	} else {
		progressBarFill.tint = 0xff6600; // Default orange
	}
	// Animate progress bar when close to boss spawn
	if (progressPercent > 0.9 && !bossActive) {
		var pulseScale = 1 + Math.sin(LK.ticks * 0.3) * 0.1;
		progressBarFill.scaleY = pulseScale;
		progressBarBg.scaleY = pulseScale;
	} else {
		progressBarFill.scaleY = 1;
		progressBarBg.scaleY = 1;
	}
	dayTimer++;
	if (dayTimer >= 600) {
		dayTimer = 0;
		// Only auto-switch day/night if not controlled by boss system
		if (!bossActive && currentStage === 1) {
			isDaytime = !isDaytime;
			dayText.setText(isDaytime ? 'Day' : 'Night');
			dayText.tint = isDaytime ? 0xFFD700 : 0x4169E1;
			game.setBackgroundColor(isDaytime ? 0x87CEEB : 0x191970);
			for (var i = 0; i < solarCollectors.length; i++) {
				solarCollectors[i].isDaytime = isDaytime;
			}
		}
	}
	// Wave-based zombie spawning with limited numbers per wave
	if (zombiesToSpawn <= 0 && !bossActive) {
		waveTimer++;
		// Random delay between waves (10-25 seconds based on difficulty)
		var minWaveDelay = isEasyPeriod ? 600 : Math.max(600, 900 - Math.floor(difficultyMultiplier * 60)); // 10-15 seconds
		var maxWaveDelay = isEasyPeriod ? 1500 : Math.max(900, 1500 - Math.floor(difficultyMultiplier * 30)); // 15-25 seconds
		var randomWaveDelay = Math.floor(Math.random() * (maxWaveDelay - minWaveDelay + 1)) + minWaveDelay;
		if (waveTimer >= randomWaveDelay) {
			waveTimer = 0;
			wave++;
			// Spawn 3-4 zombies per wave depending on difficulty
			var baseZombies = isEasyPeriod ? 3 : 3;
			var maxZombies = isEasyPeriod ? 3 : 4;
			// Increase chance of 4 zombies as difficulty rises
			var zombieCount = baseZombies;
			if (!isEasyPeriod && Math.random() < (difficultyMultiplier - 1) * 0.3) {
				zombieCount = maxZombies;
			}
			zombiesPerWave = zombieCount;
			zombiesToSpawn = zombiesPerWave;
		}
	} else if (zombiesToSpawn > 0) {
		zombieSpawnTimer++;
		// Spawn zombies quickly within a wave (every 0.5-1 second)
		var spawnDelay = isEasyPeriod ? 60 : Math.max(30, 60 - Math.floor(difficultyMultiplier * 5));
		if (zombieSpawnTimer >= spawnDelay) {
			zombieSpawnTimer = 0;
			zombiesToSpawn--;
			spawnZombie(false);
		}
	}
	for (var i = solarCollectors.length - 1; i >= 0; i--) {
		if (solarCollectors[i].destroyed) {
			solarCollectors.splice(i, 1);
		}
	}
	for (var i = towers.length - 1; i >= 0; i--) {
		if (towers[i].destroyed) {
			towers.splice(i, 1);
		}
	}
	for (var i = zombies.length - 1; i >= 0; i--) {
		if (zombies[i].destroyed) {
			// Check if destroyed zombie was a boss
			if (zombies[i].health > 100 && bossActive) {
				// Boss zombies have much higher health
				onBossDefeated();
			} else if (!bossActive) {
				// Regular zombie kill increases boss progress slightly
				bossProgress += 0.1; // Reduced to match slower progress bar
			}
			zombies.splice(i, 1);
		}
	}
	for (var i = houses.length - 1; i >= 0; i--) {
		if (houses[i].destroyed) {
			houses.splice(i, 1);
		}
	}
	energyText.setText('Energy: ' + energy);
	waveText.setText('Wave: ' + wave);
	livesText.setText('Lives: ' + lives);
	stageText.setText('Stage: ' + currentStage);
	// Update progress text based on state
	if (bossActive) {
		progressText.setText('BOSS ACTIVE!');
		progressText.tint = 0xff0000;
		var pulseAlpha = 0.5 + Math.sin(LK.ticks * 0.5) * 0.5;
		progressText.alpha = pulseAlpha;
	} else if (isEasyPeriod) {
		progressText.setText('Preparation Time');
		progressText.tint = 0x00ff00;
		progressText.alpha = 1;
	} else {
		progressText.setText('Boss Progress: ' + Math.floor(progressPercent * 100) + '%');
		progressText.tint = 0xFFFFFF;
		progressText.alpha = 1;
	}
	if (lives <= 0) {
		LK.showGameOver();
	}
};
LK.playMusic('gameMusic');