/**** 
* Classes
****/ 
// Define the Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -15;
	self.update = function () {
		self.y += self.speed;
	};
});
// Define the Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var size = Math.random() * 100 + 100;
	var enemyGraphics = self.attachAsset('enemy', {
		width: size,
		height: size,
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.rotationSpeed = Math.random() * 0.1 - 0.05;
	self.update = function () {
		self.y += self.speed;
		self.rotation += self.rotationSpeed;
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Define the Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		// Player movement logic will be handled in game.down and game.move
		// Shooting logic
		if (LK.ticks - lastShot >= fireRate * 60) {
			var bullet = new Bullet();
			bullet.x = self.x;
			bullet.y = self.y;
			bullets.push(bullet);
			game.addChild(bullet);
			lastShot = LK.ticks;
		}
	};
});
// Define the PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUpGreen', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// PowerUp movement logic will be handled in game.down and game.move
	};
});

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

/**** 
* Game Code
****/ 
// Initialize variables
var player;
var enemies = [];
var bullets = [];
var score = 0;
var lives = 10;
var level = 1;
var levelText;
var scoreText;
var livesText;
var enemySpeedMultiplier = 1;
var enemySpawnRate = 1000;
var enemySpawnTimer;
var powerUp1;
var powerUp2;
var powerUp3;
// Function to start a new level
function startLevel() {
	levelText.setText('LEVEL ' + level);
	levelText.visible = true;
	// Increase enemy speed and spawn rate by 5% each level
	enemySpeedMultiplier *= 1.05;
	enemySpawnRate *= 0.95;
	LK.setTimeout(function () {
		levelText.visible = false;
		// Initialize powerUps only if level is 2 or higher
		if (level >= 2) {
			powerUp1 = new PowerUp();
			powerUp1.x = 1024 - 200;
			powerUp1.y = 1366;
			game.addChild(powerUp1);
			powerUp2 = new PowerUp();
			powerUp2.x = 1024;
			powerUp2.y = 1366;
			game.addChild(powerUp2);
			powerUp3 = new PowerUp();
			powerUp3.x = 1024 + 200;
			powerUp3.y = 1366;
			game.addChild(powerUp3);
			powerUp1.visible = true;
			powerUp2.visible = true;
			powerUp3.visible = true;
		}
		spawnEnemies();
	}, 4000);
}
// Function to spawn enemies
function spawnEnemies() {
	enemySpawnTimer = LK.setInterval(function () {
		var enemy = new Enemy();
		enemy.x = Math.random() * 2048;
		enemy.y = -50;
		enemy.speed *= enemySpeedMultiplier;
		enemies.push(enemy);
		game.addChild(enemy);
	}, enemySpawnRate);
}
// Function to update score and level
function updateScore(points) {
	score += points;
	scoreText.setText('Score: ' + score);
	if (score >= 2500 * Math.pow(2.5, level - 1)) {
		level++;
		// Increase enemy speed and spawn rate by 10% each level
		enemySpeedMultiplier *= 1.1;
		enemySpawnRate *= 0.9;
		clearEnemies();
		startLevel();
	}
}
// Function to clear enemies
function clearEnemies() {
	for (var i = 0; i < enemies.length; i++) {
		enemies[i].destroy();
	}
	enemies = [];
	LK.clearInterval(enemySpawnTimer);
}
// Initialize player
player = new Player();
player.x = 1024;
player.y = 2500;
game.addChild(player);
// Initialize texts
levelText = new Text2('LEVEL 1', {
	size: 150,
	fill: 0xFFFFFF
});
levelText.anchor.set(0.5, 0.5);
LK.gui.center.addChild(levelText);
scoreText = new Text2('Score: 0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
LK.gui.topLeft.addChild(scoreText);
livesText = new Text2('Lives: 10', {
	size: 100,
	fill: 0xFFFFFF
});
livesText.anchor.set(1, 0);
LK.gui.topRight.addChild(livesText);
// Start the first level
startLevel();
// Handle player movement
game.down = function (x, y, obj) {
	player.x = x;
};
game.move = function (x, y, obj) {
	player.x = x;
};
// Handle shooting
var lastShot = 0;
var fireRate = 0.5;
game.up = function (x, y, obj) {
	if (LK.ticks - lastShot >= fireRate * 60) {
		var bullet = new Bullet();
		bullet.x = player.x;
		bullet.y = player.y;
		bullets.push(bullet);
		game.addChild(bullet);
		lastShot = LK.ticks;
	}
};
// Game update loop
game.update = function () {
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		bullets[i].update();
		if (bullets[i].y < -50) {
			bullets[i].destroy();
			bullets.splice(i, 1);
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].update();
		if (enemies[i].y > 2732) {
			enemies[i].destroy();
			enemies.splice(i, 1);
			lives--;
			livesText.setText('Lives: ' + lives);
			if (lives <= 0) {
				powerUp1.visible = false;
				powerUp2.visible = false;
				powerUp3.visible = false;
				LK.showGameOver();
			}
		}
	}
	// Check for collisions
	for (var i = bullets.length - 1; i >= 0; i--) {
		for (var j = enemies.length - 1; j >= 0; j--) {
			if (bullets[i].intersects(powerUp1)) {
				fireRate *= 1.05;
				bullets[i].destroy();
				bullets.splice(i, 1);
				powerUp1.destroy();
			} else if (bullets[i].intersects(powerUp2)) {
				enemySpeedMultiplier *= 0.95;
				bullets[i].destroy();
				bullets.splice(i, 1);
				powerUp2.destroy();
			} else if (bullets[i].intersects(powerUp3)) {
				fireRate /= 2;
				bullets[i].destroy();
				bullets.splice(i, 1);
				powerUp3.destroy();
			} else if (bullets[i].intersects(enemies[j])) {
				bullets[i].destroy();
				bullets.splice(i, 1);
				// Add explosion effect
				// Placeholder function as LK.effects.explosion does not exist
				var explosion = function explosion(x, y, scale, speed, rotationSpeed) {
					var explosionAsset = LK.getAsset('explosion', {
						anchorX: 0.5,
						anchorY: 0.5,
						x: x,
						y: y,
						scaleX: scale,
						scaleY: scale
					});
					explosionAsset.speed = speed;
					explosionAsset.rotationSpeed = rotationSpeed;
					explosionAsset.update = function () {
						this.y += this.speed;
						this.rotation += this.rotationSpeed;
						// Gradually shrink the explosion effect
						this.scaleX *= 0.95;
						this.scaleY *= 0.95;
						// If the explosion effect has shrunk to less than 5% of its original size, destroy it
						if (this.scaleX < 0.05 || this.scaleY < 0.05) {
							this.destroy();
						}
					};
					game.addChild(explosionAsset);
				};
				explosion(enemies[j].x, enemies[j].y, 1, enemies[j].speed, enemies[j].rotationSpeed);
				enemies[j].destroy();
				enemies.splice(j, 1);
				updateScore(50);
				break;
			}
		}
	}
};