/**** 
* Classes
****/ 
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyBox', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Set background
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('heroBox', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.fireRate = 5; // Fire every 5 ticks (4x faster)
	self.lastFire = 0;
	self.barrels = 1; // Start with 1 barrel
	self.update = function () {
		// Auto fire bullets
		if (LK.ticks - self.lastFire > self.fireRate) {
			self.lastFire = LK.ticks;
			// Fire bullets from multiple barrels
			for (var b = 0; b < self.barrels; b++) {
				var bullet = new HeroBullet();
				// Calculate bullet position to spread horizontally toward top of screen
				var totalWidth = (self.barrels - 1) * 80; // 80 pixels apart horizontally
				var offsetX = b * 80 - totalWidth / 2; // Center the spread
				bullet.x = self.x + offsetX;
				bullet.y = self.y - 50;
				heroBullets.push(bullet);
				game.addChild(bullet);
			}
		}
	};
	return self;
});
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -60;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Set background
game.setBackgroundColor(0x001122);
// Game variables
var hero;
var enemies = [];
var heroBullets = [];
var waveNumber = 1;
var enemiesSpawned = 0;
var enemiesPerWave = 5;
var spawnTimer = 0;
var spawnRate = 60; // Spawn every 60 ticks initially
var dragNode = null;
// Create hero
hero = new Hero();
hero.x = 2048 / 2;
hero.y = 2732 - 200;
game.addChild(hero);
// Score display
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Wave display
var waveTxt = new Text2('Wave: 1', {
	size: 60,
	fill: 0xFFFF00
});
waveTxt.anchor.set(0, 0);
waveTxt.x = 50;
waveTxt.y = 50;
LK.gui.topLeft.addChild(waveTxt);
// Touch controls
game.down = function (x, y, obj) {
	dragNode = hero;
	hero.x = x;
	hero.y = y;
};
game.move = function (x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
		dragNode.y = y;
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Main game loop
game.update = function () {
	// Spawn enemies
	spawnTimer++;
	if (spawnTimer >= spawnRate && enemiesSpawned < enemiesPerWave) {
		spawnTimer = 0;
		var enemy = new Enemy();
		enemy.x = Math.random() * (2048 - 200) + 100;
		enemy.y = -100;
		enemy.speed = 2 + waveNumber * 0.5; // Increase speed with waves
		enemies.push(enemy);
		game.addChild(enemy);
		enemiesSpawned++;
	}
	// Update and check bullet collisions
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var bullet = heroBullets[i];
		// Remove bullets that go off screen
		if (bullet.y < -50) {
			bullet.destroy();
			heroBullets.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)) {
				// Enemy hit
				LK.setScore(LK.getScore() + 10);
				scoreTxt.setText('Score: ' + LK.getScore());
				// Remove bullet and enemy
				bullet.destroy();
				enemy.destroy();
				heroBullets.splice(i, 1);
				enemies.splice(j, 1);
				break;
			}
		}
	}
	// Update and check enemy collisions with hero
	for (var k = enemies.length - 1; k >= 0; k--) {
		var enemy = enemies[k];
		// Check if enemy reached hero
		if (enemy.intersects(hero)) {
			LK.showGameOver();
			return;
		}
		// Remove enemies that go off screen
		if (enemy.y > 2732 + 100) {
			enemy.destroy();
			enemies.splice(k, 1);
		}
	}
	// Check if wave is complete
	if (enemies.length === 0 && enemiesSpawned >= enemiesPerWave) {
		waveNumber++;
		waveTxt.setText('Wave: ' + waveNumber);
		enemiesSpawned = 0;
		enemiesPerWave = Math.min(5 + waveNumber, 15); // Increase enemies per wave
		spawnRate = Math.max(30, 60 - waveNumber * 2); // Decrease spawn rate
		// Increase barrels every 5 waves
		hero.barrels = Math.floor(waveNumber / 5) + 1;
	}
};
// Start background music
LK.playMusic('1a439');