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

/**** 
* Classes
****/ 
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('boss', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 20;
	self.maxHealth = 20;
	self.speed = 2;
	self.fireTimer = 0;
	self.moveDirection = 1;
	self.scoreValue = 500;
	self.update = function () {
		self.x += self.moveDirection * self.speed;
		if (self.x <= 150 || self.x >= 1898) {
			self.moveDirection *= -1;
		}
		self.fireTimer--;
		if (self.fireTimer <= 0) {
			self.fire();
			self.fireTimer = 60;
		}
		var healthPercent = self.health / self.maxHealth;
		if (healthPercent < 0.3) {
			bossGraphics.tint = 0xff0000;
		} else if (healthPercent < 0.7) {
			bossGraphics.tint = 0xff8800;
		}
	};
	self.fire = function () {
		for (var i = -2; i <= 2; i++) {
			var bullet = new EnemyBullet();
			bullet.x = self.x + i * 30;
			bullet.y = self.y + 75;
			enemyBullets.push(bullet);
			game.addChild(bullet);
		}
		LK.getSound('shoot').play();
	};
	self.takeDamage = function () {
		self.health--;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xffffff, 200);
		return false;
	};
	return self;
});
var Enemy = Container.expand(function (type) {
	var self = Container.call(this);
	var assetName = type === 2 ? 'enemy2' : 'enemy1';
	var enemyGraphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = type || 1;
	self.speed = self.type === 2 ? 5 : 4;
	self.health = 5;
	self.scoreValue = self.type === 2 ? 20 : 10;
	self.fireTimer = Math.random() * 60 + 30;
	self.moveDirection = Math.random() * Math.PI * 2;
	self.moveTimer = 0;
	self.update = function () {
		self.y += self.speed;
		self.moveTimer++;
		if (self.moveTimer > 60) {
			self.moveDirection = Math.random() * Math.PI * 2;
			self.moveTimer = 0;
		}
		self.x += Math.cos(self.moveDirection) * 1;
		if (self.x < 50) self.x = 50;
		if (self.x > 1998) self.x = 1998;
		self.fireTimer--;
		if (self.fireTimer <= 0) {
			self.fire();
			self.fireTimer = Math.random() * 180 + 120;
		}
	};
	self.fire = function () {
		var bullet = new EnemyBullet();
		bullet.x = self.x;
		bullet.y = self.y + 30;
		// Calculate direction to player
		var dx = player.x - self.x;
		var dy = player.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		bullet.directionX = dx / distance;
		bullet.directionY = dy / distance;
		enemyBullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	};
	self.takeDamage = function () {
		self.health--;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		LK.effects.flashObject(self, 0xffffff, 200);
		return false;
	};
	return self;
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.directionX = 0;
	self.directionY = 1;
	self.update = function () {
		self.x += self.directionX * self.speed;
		self.y += self.directionY * self.speed;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 25;
	self.fireRate = 15;
	self.multiShot = false;
	self.shieldActive = false;
	self.fireTimer = 0;
	self.isShooting = false;
	self.update = function () {
		if (self.fireTimer > 0) {
			self.fireTimer--;
		}
		if (self.isShooting && self.fireTimer <= 0) {
			self.fire();
			self.fireTimer = self.fireRate;
		}
		if (self.shieldActive) {
			playerGraphics.tint = 0x00ffff;
		} else {
			playerGraphics.tint = 0xffffff;
		}
	};
	self.fire = function () {
		if (self.multiShot) {
			var bullet1 = new PlayerBullet();
			bullet1.x = self.x - 20;
			bullet1.y = self.y - 50;
			playerBullets.push(bullet1);
			game.addChild(bullet1);
			var bullet2 = new PlayerBullet();
			bullet2.x = self.x;
			bullet2.y = self.y - 50;
			playerBullets.push(bullet2);
			game.addChild(bullet2);
			var bullet3 = new PlayerBullet();
			bullet3.x = self.x + 20;
			bullet3.y = self.y - 50;
			playerBullets.push(bullet3);
			game.addChild(bullet3);
		} else {
			var bullet = new PlayerBullet();
			bullet.x = self.x;
			bullet.y = self.y - 50;
			playerBullets.push(bullet);
			game.addChild(bullet);
		}
		LK.getSound('shoot').play();
	};
	self.takeDamage = function () {
		if (self.shieldActive) {
			self.shieldActive = false;
			return;
		}
		self.health--;
		LK.getSound('playerHit').play();
		LK.effects.flashObject(self, 0xff0000, 500);
		if (self.health <= 0) {
			LK.showGameOver();
		}
	};
	return self;
});
var PlayerBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('playerBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -12;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PowerUp = Container.expand(function (type) {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.powerType = type || 1;
	self.speed = 3;
	if (self.powerType === 1) {
		powerUpGraphics.tint = 0x00ff00;
	} else if (self.powerType === 2) {
		powerUpGraphics.tint = 0xff9900;
	} else if (self.powerType === 3) {
		powerUpGraphics.tint = 0x0099ff;
	}
	self.update = function () {
		self.y += self.speed;
		self.rotation += 0.1;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000033
});

/**** 
* Game Code
****/ 
var player;
var playerBullets = [];
var enemies = [];
var enemyBullets = [];
var powerUps = [];
var boss = null;
var currentLevel = 1;
var enemySpawnTimer = 0;
var powerUpSpawnTimer = 0;
var levelTransitionTimer = 0;
var isBossLevel = false;
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
scoreText.x = 120;
scoreText.y = 50;
LK.gui.topLeft.addChild(scoreText);
var livesText = new Text2('Lives: 25/25', {
	size: 60,
	fill: 0xFFFFFF
});
livesText.anchor.set(1, 0);
livesText.x = -50;
livesText.y = 50;
LK.gui.topRight.addChild(livesText);
var levelText = new Text2('Level: 1', {
	size: 60,
	fill: 0xFFFFFF
});
levelText.anchor.set(0.5, 0);
levelText.x = 0;
levelText.y = 50;
LK.gui.top.addChild(levelText);
var healthBarBg = LK.getAsset('healthBarBg', {
	anchorX: 0.5,
	anchorY: 0
});
healthBarBg.x = 0;
healthBarBg.y = 120;
LK.gui.top.addChild(healthBarBg);
var healthBarFill = LK.getAsset('healthBarFill', {
	anchorX: 0,
	anchorY: 0
});
healthBarFill.x = -148;
healthBarFill.y = 122;
LK.gui.top.addChild(healthBarFill);
player = game.addChild(new Player());
player.x = 1024;
player.y = 2400;
LK.playMusic('gameMusic');
function spawnEnemy() {
	var enemyType = Math.random() < 0.7 ? 1 : 2;
	var enemy = new Enemy(enemyType);
	enemy.x = Math.random() * 1800 + 124;
	enemy.y = -50;
	enemies.push(enemy);
	game.addChild(enemy);
}
function spawnPowerUp() {
	var powerType = Math.floor(Math.random() * 3) + 1;
	var powerUp = new PowerUp(powerType);
	powerUp.x = Math.random() * 1800 + 124;
	powerUp.y = -50;
	powerUps.push(powerUp);
	game.addChild(powerUp);
}
function spawnBoss() {
	boss = new Boss();
	boss.x = 1024;
	boss.y = 200;
	game.addChild(boss);
	isBossLevel = true;
}
function handleMove(x, y, obj) {
	if (player && !player.destroyed) {
		player.x = x;
		player.y = y;
		player.isShooting = true;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	if (player && !player.destroyed) {
		player.x = x;
		player.y = y;
		player.isShooting = true;
	}
};
game.up = function (x, y, obj) {
	if (player && !player.destroyed) {
		player.isShooting = false;
	}
};
game.update = function () {
	scoreText.setText('Score: ' + LK.getScore());
	livesText.setText('Lives: ' + player.health + '/25');
	levelText.setText('Level: ' + currentLevel);
	// Update health bar
	var healthPercent = Math.max(0, player.health / 25);
	healthBarFill.width = 296 * healthPercent;
	if (healthPercent > 0.6) {
		healthBarFill.tint = 0x00ff00;
	} else if (healthPercent > 0.3) {
		healthBarFill.tint = 0xffff00;
	} else {
		healthBarFill.tint = 0xff0000;
	}
	// Player bullets
	for (var i = playerBullets.length - 1; i >= 0; i--) {
		var bullet = playerBullets[i];
		if (bullet.y < -50) {
			bullet.destroy();
			playerBullets.splice(i, 1);
			continue;
		}
		// Check collision with enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				if (enemy.takeDamage()) {
					LK.setScore(LK.getScore() + enemy.scoreValue);
					enemies.splice(j, 1);
					LK.getSound('enemyHit').play();
				}
				bullet.destroy();
				playerBullets.splice(i, 1);
				break;
			}
		}
		// Check collision with boss
		if (boss && bullet.intersects(boss)) {
			if (boss.takeDamage()) {
				LK.setScore(LK.getScore() + boss.scoreValue);
				boss = null;
				isBossLevel = false;
				currentLevel++;
				levelTransitionTimer = 180;
				LK.getSound('enemyHit').play();
			}
			bullet.destroy();
			playerBullets.splice(i, 1);
		}
	}
	// Enemy bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var bullet = enemyBullets[i];
		if (bullet.y > 2782) {
			bullet.destroy();
			enemyBullets.splice(i, 1);
			continue;
		}
		if (bullet.intersects(player)) {
			player.takeDamage();
			bullet.destroy();
			enemyBullets.splice(i, 1);
		}
	}
	// Enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (enemy.y > 2782) {
			enemy.destroy();
			enemies.splice(i, 1);
			continue;
		}
		if (enemy.intersects(player)) {
			player.takeDamage();
			enemy.destroy();
			enemies.splice(i, 1);
		}
	}
	// Power-ups
	for (var i = powerUps.length - 1; i >= 0; i--) {
		var powerUp = powerUps[i];
		if (powerUp.y > 2782) {
			powerUp.destroy();
			powerUps.splice(i, 1);
			continue;
		}
		if (powerUp.intersects(player)) {
			if (powerUp.powerType === 1) {
				player.fireRate = Math.max(5, player.fireRate - 3);
			} else if (powerUp.powerType === 2) {
				player.multiShot = true;
				LK.setTimeout(function () {
					player.multiShot = false;
				}, 10000);
			} else if (powerUp.powerType === 3) {
				player.shieldActive = true;
				LK.setTimeout(function () {
					player.shieldActive = false;
				}, 8000);
			}
			LK.getSound('powerUpCollect').play();
			powerUp.destroy();
			powerUps.splice(i, 1);
		}
	}
	// Level progression
	if (levelTransitionTimer > 0) {
		levelTransitionTimer--;
		return;
	}
	// Boss level every 5 levels
	if (currentLevel % 5 === 0 && !isBossLevel && !boss) {
		spawnBoss();
		return;
	}
	if (!isBossLevel) {
		// Spawn enemies
		enemySpawnTimer++;
		var spawnRate = Math.max(30, 120 - currentLevel * 5);
		if (enemySpawnTimer >= spawnRate) {
			spawnEnemy();
			enemySpawnTimer = 0;
		}
		// Spawn power-ups
		powerUpSpawnTimer++;
		if (powerUpSpawnTimer >= 600) {
			spawnPowerUp();
			powerUpSpawnTimer = 0;
		}
		// Level up condition
		if (LK.getScore() >= currentLevel * 100) {
			currentLevel++;
		}
	}
};