/**** 
* Classes
****/ 
// Boss class
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('boss', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.health = 100;
	self.healthBar = self.attachAsset('bossHealthBar', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.healthBar.y = -bossGraphics.height / 2 - self.healthBar.height / 2;
	self.update = function () {
		if (self.y < 2732 * 0.3) {
			self.y += self.speed;
		} else {
			// Add dynamic movement to the boss
			self.y += Math.sin(LK.ticks / 30) * 1;
		}
		self.healthBar.width = bossGraphics.width * (self.health / 100);
		if (self.y > 2732 + bossGraphics.height) {
			self.destroy();
			bosses.splice(bosses.indexOf(self), 1);
		}
	};
	self.shoot = function () {
		var bullet = new EnemyBullet();
		bullet.x = self.x;
		bullet.y = self.y + bossGraphics.height / 2;
		var dx = lastMousePosition.x - self.x;
		var dy = lastMousePosition.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		bullet.direction = {
			x: dx / distance,
			y: dy / distance
		};
		game.addChild(bullet);
		enemyBullets.push(bullet);
	};
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + enemyGraphics.height) {
			self.destroy();
			enemies.splice(enemies.indexOf(self), 1);
		}
	};
	self.shoot = function () {
		var bullet = new EnemyBullet();
		bullet.x = self.x;
		bullet.y = self.y + enemyGraphics.height / 2;
		// Calculate the direction vector towards the hero's last known position
		var dx = lastMousePosition.x - self.x;
		var dy = lastMousePosition.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		// Normalize the direction vector
		bullet.direction = {
			x: dx / distance,
			y: dy / distance
		};
		game.addChild(bullet);
		enemyBullets.push(bullet);
	};
});
// EnemyBullet class
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 20;
	self.update = function () {
		self.x += self.direction.x * self.speed;
		self.y += self.direction.y * self.speed;
		if (self.y > 2732 + bulletGraphics.height || self.x < -bulletGraphics.width || self.x > 2048 + bulletGraphics.width) {
			self.destroy();
			enemyBullets.splice(enemyBullets.indexOf(self), 1);
		} else if (self.intersects(hero)) {
			hero.health -= 10; // decrease hero's health by 10
			self.destroy();
			enemyBullets.splice(enemyBullets.indexOf(self), 1);
		}
	};
});
//<Assets used in the game will automatically appear here>
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	self.health = 100;
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.healthBar = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.healthBar.y = -heroGraphics.height / 2 - self.healthBar.height / 2;
	self.speed = 10;
	self.update = function () {
		// Hero update logic
		var dx = lastMousePosition.x - self.x;
		var dy = lastMousePosition.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > self.speed) {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
		self.healthBar.width = heroGraphics.width * (self.health / 100);
	};
	self.shoot = function () {
		var bullet = new HeroBullet();
		bullet.x = self.x;
		bullet.y = self.y - heroGraphics.height / 2;
		game.addChild(bullet);
		heroBullets.push(bullet);
	};
});
// HeroBullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -15;
	self.update = function () {
		self.y += self.speed;
		if (self.y < -bulletGraphics.height) {
			self.destroy();
			heroBullets.splice(heroBullets.indexOf(self), 1);
		}
	};
});
// PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1.5;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + powerUpGraphics.height) {
			self.destroy();
			powerUps.splice(powerUps.indexOf(self), 1);
		} else if (self.intersects(hero)) {
			activatePowerUp();
			self.destroy();
			powerUps.splice(powerUps.indexOf(self), 1);
		}
	};
});
// Star class
var Star = Container.expand(function () {
	var self = Container.call(this);
	var starGraphics = self.attachAsset('star', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 5 + 1; // Random speed for parallax effect
	// Make stars that are moving slower smaller and more transparent
	starGraphics.scale.set(self.speed / 6);
	starGraphics.alpha = self.speed / 6;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + starGraphics.height) {
			self.y = -starGraphics.height;
			self.x = Math.random() * 2048; // Random x position
		}
	};
});

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

/**** 
* Game Code
****/ 
// Spawn a new power-up
function spawnPowerUp() {
	var powerUp = new PowerUp();
	powerUp.x = Math.random() * 2048;
	powerUp.y = -powerUp.height;
	game.addChild(powerUp);
	powerUps.push(powerUp);
}
// Activate power-up
function activatePowerUp() {
	hero.shoot = function () {
		var bullet1 = new HeroBullet();
		var bullet2 = new HeroBullet();
		bullet1.x = hero.x - 60;
		bullet2.x = hero.x + 60;
		bullet1.y = bullet2.y = hero.y - hero.height / 2;
		game.addChild(bullet1);
		game.addChild(bullet2);
		heroBullets.push(bullet1);
		heroBullets.push(bullet2);
	};
	LK.setTimeout(function () {
		hero.shoot = function () {
			var bullet = new HeroBullet();
			bullet.x = hero.x;
			bullet.y = hero.y - hero.height / 2;
			game.addChild(bullet);
			heroBullets.push(bullet);
		};
	}, 5000);
}
// Check for game over condition
function checkGameOver() {
	if (hero.health <= 0) {
		// Flash screen red for 1 second (1000ms) to show we are dead.
		LK.effects.flashScreen(0xff0000, 1000);
		// Show game over. The game will be automatically paused while game over is showing.
		LK.showGameOver(); // Calling this will destroy the 'Game' and reset entire game state.
	}
}
// Initialize arrays and variables
var hero;
var heroBullets = [];
var enemyBullets = [];
var bosses = [];
var enemies = [];
var score = 0;
var scoreTxt;
var powerUps = [];
var lastMousePosition = {
	x: 0,
	y: 0
};
// Initialize game elements
function initGame() {
	// Create star field
	for (var i = 0; i < 100; i++) {
		var star = new Star();
		star.x = Math.random() * 2048; // Random x position
		star.y = Math.random() * 2732; // Random y position
		game.addChild(star);
	}
	// Create hero
	hero = new Hero();
	hero.x = 2048 / 2;
	hero.y = 2732 - 200;
	game.addChild(hero);
	// Create score text
	scoreTxt = new Text2('0', {
		size: 200,
		fill: "#ffffff",
		font: "'GillSans-Bold',Impact,'Arial Black',Tahoma"
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	// Set up game update loop
	game.update = function () {
		// Update hero
		hero.update();
		// Update hero bullets
		for (var i = heroBullets.length - 1; i >= 0; i--) {
			heroBullets[i].update();
		}
		// Hero auto-fires bullets at a faster rate (50% increase)
		if (LK.ticks % 40 == 0) {
			hero.shoot();
		}
		// Update enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			enemies[j].update();
			if (LK.ticks % 120 == 0) {
				enemies[j].shoot();
			}
		}
		// Update power-ups
		for (var k = powerUps.length - 1; k >= 0; k--) {
			powerUps[k].update();
		}
		// Check for collisions and game over condition
		checkCollisions();
		checkGameOver();
		// Check if hero intersects with any enemy
		for (var i = 0; i < enemies.length; i++) {
			if (hero.intersects(enemies[i])) {
				// Flash screen red for 1 second (1000ms) to show we are dead.
				LK.effects.flashScreen(0xff0000, 1000);
				// Show game over. The game will be automatically paused while game over is showing.
				LK.showGameOver(); // Calling this will destroy the 'Game' and reset entire game state.
				break;
			}
		}
		// Update bosses
		for (var i = bosses.length - 1; i >= 0; i--) {
			bosses[i].update();
			if (LK.ticks % 40 == 0) {
				bosses[i].shoot();
			}
		}
		// Check for collisions between hero bullets and bosses
		for (var i = heroBullets.length - 1; i >= 0; i--) {
			for (var j = bosses.length - 1; j >= 0; j--) {
				if (heroBullets[i].intersects(bosses[j])) {
					// Decrease boss's health
					bosses[j].health -= 10;
					// Destroy bullet
					heroBullets[i].destroy();
					heroBullets.splice(i, 1);
					// Destroy boss if its health is 0
					if (bosses[j].health <= 0) {
						bosses[j].destroy();
						bosses.splice(j, 1);
					}
					break;
				}
			}
		}
		// Spawn enemies
		if (LK.ticks % 90 == 0) {
			spawnEnemy();
		}
		// Spawn power-ups
		if (LK.ticks % 600 == 0) {
			spawnPowerUp();
		}
	};
	// Set up game controls
	game.down = function (x, y, obj) {
		// hero.shoot(); removed this line
	};
	game.move = function (x, y, obj) {
		lastMousePosition = {
			x: x,
			y: y
		};
	};
}
// Check for collisions between hero bullets and enemies
function checkCollisions() {
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		for (var j = enemies.length - 1; j >= 0; j--) {
			if (heroBullets[i].intersects(enemies[j])) {
				// Destroy enemy and bullet
				enemies[j].destroy();
				heroBullets[i].destroy();
				enemies.splice(j, 1);
				heroBullets.splice(i, 1);
				// Update score
				score += 10;
				scoreTxt.setText(score);
				// Spawn a boss enemy for every enemy killed
				if (bosses.length == 0) {
					var boss = new Boss();
					boss.x = 2048 / 2;
					boss.y = -boss.height;
					game.addChild(boss);
					bosses.push(boss);
				}
				break;
			}
		}
	}
}
// Spawn a new enemy
function spawnEnemy() {
	var enemy = new Enemy();
	enemy.x = Math.random() * 2048;
	enemy.y = -enemy.height;
	game.addChild(enemy);
	enemies.push(enemy);
}
// Initialize the game
initGame();