/**** 
* Classes
****/
var Starfield = Container.expand(function () {
	var self = Container.call(this);
	self.stars = [];
	var numberOfStars = 300;
	for (var i = 0; i < numberOfStars; i++) {
		var star = LK.getAsset('star', 'Star');
		star.anchor.set(0.5, 0.5);
		star.x = Math.random() * game.width;
		star.y = Math.random() * game.height;
		star.speed = Math.random() * 1 + 0.1;
		star.alpha = Math.random() * 0.2 + 0.1;
		star.tint = Math.random() * 0xFFFFFF;
		self.addChild(star);
		self.stars.push(star);
	}
	self.moveStars = function () {
		for (var i = 0; i < self.stars.length; i++) {
			var star = self.stars[i];
			star.y += star.speed;
			if (star.y > game.height) {
				star.y = -30;
			}
		}
	};
});
// Hero ship class
var HeroShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.createAsset('heroShip', 'Cute smiley ship', 0.5, 0.5);
	self.speed = 5;
	self.isShooting = false;
	self.shootingInterval = 30;
	self._shootingCounter = 0;
	self.shoot = function () {
		var bullet = new HeroBullet();
		bullet.x = self.x;
		bullet.y = self.y - self.height / 2;
		game.addChild(bullet);
		return bullet;
	};
});
// Hero bullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('heroBullet', 'Heart bullet', 0.5, 1);
	self.speed = -10;
	self.move = function () {
		self.y += self.speed;
	};
});
// Enemy ship class
var EnemyShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.createAsset('enemyShip', 'Evil smiley', 0.5, 0.5);
	self.speed = 2;
	self.move = function () {
		self.y += self.speed;
	};
});
// Enemy ship class
var EnemyBossShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.createAsset('enemyBossShip', 'Evil Boss smiley', 0.5, 0.5);
	self.speed = 6;
	self.hitCount = 0;
	self.maxHits = 10;
	self.targetY = game.height * (1 / 4);
	self.shootingInterval = 30;
	self._shootingCounter = 0;
	self.canShoot = false;
	self.enemyBossShipBullets = [];
	self.shoot = function (playerX, playerY) {
		if (self.canShoot) {
			var bullet = new EnemyBossBullet();
			bullet.x = self.x + 100;
			bullet.y = self.y;
			bullet.initialX = playerX;
			bullet.initialY = playerY;
			self.enemyBossShipBullets.push(bullet);
			game.addChild(bullet);
		}
	};
	self.move = function () {
		if (self.y < self.targetY) {
			self.y += self.speed;
		} else if (self.speed !== 0) {
			self.speed = 0;
			self.canShoot = true;
		}
	};
	self.isDestroyed = function () {
		return self.hitCount >= self.maxHits;
	};
});
// Enemy boss bullet class
var EnemyBossBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('enemyBossBullet', 'Evil Boss Bullet', 0.5, 1);
	self.speed = 5;
	self.initialX = 0;
	self.initialY = 0;
	self.move = function () {
		var angle = Math.atan2(self.initialY - self.y, self.initialX - self.x);
		self.x += Math.cos(angle) * self.speed;
		if (self.y <= self.initialY) {
			self.y += Math.sin(angle) * self.speed;
		} else {
			self.y += self.speed;
		}

		// Continue moving off the screen
		if (self.x < -self.width || self.x > game.width + self.width || self.y < -self.height || self.y > game.height + self.height) {
			self.destroy();
		}
	};
});
var ScoreDisplay = Container.expand(function () {
	var self = Container.call(this);
	var scoreText = new Text2('0', {
		size: 150,
		fill: "#FF6900"
	});
	scoreText.anchor.set(0.5, 0);
	self.addChild(scoreText);
	self.updateScore = function (newScore) {
		scoreText.setText(newScore.toString());
	};
});

/**** 
* Initialize Game
****/
// Initialize starfield
var game = new LK.Game({
	backgroundColor: 0xFEF3BD,
	bossSpawned: false // Flag to track if boss has been spawned
});

/**** 
* Game Code
****/
// Initialize starfield
var starfield = game.addChild(new Starfield());
starfield.x = 0;
starfield.y = 0; // Start off screen

// Initialize important asset arrays and score tracking
var heroBullets = [];
var enemyShips = [];
var enemyBossShips = [];
var currentScore = 0;
var highScore = 0;
var scoreDisplay = game.addChild(new ScoreDisplay());
scoreDisplay.x = 150;
scoreDisplay.y = 75;

// Create hero ship
var heroShip = game.addChild(new HeroShip());
heroShip.x = game.width / 2;
heroShip.y = game.height - 450;

// Create enemies
function spawnEnemyShip(speed) {
	var enemyShip = new EnemyShip();
	enemyShip.speed = speed || Math.random() * 3 + 1; // Default speed if not provided
	enemyShip.x = Math.random() * (game.width - enemyShip.width) + enemyShip.width / 2;
	enemyShip.y = -enemyShip.height / 2;
	game.addChild(enemyShip);
	enemyShips.push(enemyShip);
}

// Game tick event
LK.on('tick', function () {
	// Move the starfield
	starfield.moveStars();

	// Move hero bullets
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var bullet = heroBullets[i];
		bullet.move();
		if (bullet.y < -bullet.height) {
			bullet.destroy();
			heroBullets.splice(i, 1);
		} else {
			// Check collision with enemies
			for (var j = enemyShips.length - 1; j >= 0; j--) {
				if (bullet.intersects(enemyShips[j])) {
					bullet.destroy();
					heroBullets.splice(i, 1);
					{
						enemyShips[j].destroy();
						enemyShips.splice(j, 1);
						currentScore += 100;
						scoreDisplay.updateScore(currentScore);
					}
					break;
				}
			}

			//Enemy Boss collision
			for (var j = enemyBossShips.length - 1; j >= 0; j--) {
				if (bullet.intersects(enemyBossShips[j])) {
					bullet.destroy();
					heroBullets.splice(i, 1);
					enemyBossShips[j].hitCount++;
					if (enemyBossShips[j].isDestroyed()) {
						enemyBossShips[j].destroy();
						enemyBossShips.splice(j, 1);
						currentScore += 1000;
						scoreDisplay.updateScore(currentScore);
					}
				}
			}
		}
	}

	// Move enemy ships
	for (var i = enemyShips.length - 1; i >= 0; i--) {
		var enemy = enemyShips[i];
		enemy.move();
		if (enemy.y > game.height + enemy.height / 2) {
			enemy.destroy();
			enemyShips.splice(i, 1);
		}
	}

	// Move enemy Boss ships
	for (var i = enemyBossShips.length - 1; i >= 0; i--) {
		var enemy = enemyBossShips[i];
		enemy.move();
		if (enemy._shootingCounter % enemy.shootingInterval == 0) {
			enemy.shoot(heroShip.x, heroShip.y);
			enemy._shootingCounter = 0;
		}
		enemy._shootingCounter += 1;
		if (enemy.y > game.height + enemy.height / 2) {
			enemy.destroy();
			enemyBossShips.splice(i, 1);
		}
		for (var j = enemy.enemyBossShipBullets.length - 1; j >= 0; j--) {
			var enemyBullet = enemy.enemyBossShipBullets[j];
			enemyBullet.move();
		}
	}

	// Shoot bullets
	if (heroShip._shootingCounter % heroShip.shootingInterval == 0) {
		if (heroShip.isShooting) {
			heroBullets.push(heroShip.shoot());
			heroShip._shootingCounter = 0;
		}
	}
	heroShip._shootingCounter += 1;
});
// Function to randomly spawn enemy ships or the enemy boss
function randomSpawnEnemyShip() {
	var minSpawnDelay = 1000; // 1 second
	var maxSpawnDelay = 3000; // 3 seconds
	var spawnDelay = Math.random() * (maxSpawnDelay - minSpawnDelay) + minSpawnDelay;
	LK.setTimeout(function () {
		if (currentScore >= 200 && !game.bossSpawned) {
			game.bossSpawned = true;
			var enemyBossShip = new EnemyBossShip();
			enemyBossShip.x = game.width / 2;
			enemyBossShip.y = -enemyBossShip.height / 2;
			game.addChild(enemyBossShip);
			enemyBossShips.push(enemyBossShip);
		} else if (!game.bossSpawned) {
			spawnEnemyShip();
		}
		randomSpawnEnemyShip(); // Schedule next spawn
	}, spawnDelay);
}
randomSpawnEnemyShip(); // Start the spawning process

// Touch controls to make heroShip follow the pointer
game.on('move', function (obj) {
	var touchPos = obj.event.getLocalPosition(game);
	heroShip.x = touchPos.x;
});
game.on('down', function (obj) {
	heroShip._shootingCounter = 0;
	heroShip.isShooting = true;
});
game.on('up', function (obj) {
	heroShip.isShooting = false;
});