/**** 
* Classes
****/
var LaunchTrail = Container.expand(function () {
	var self = Container.call(this);
	var trailGraphics = self.createAsset('launchTrail', 'Launch trail', 0.5, 1);
	self.y = 2732;
	self.x = 2048 / 2;
	self.update = function () {
		self.y -= 13;
		if (self.y <= self.targetY) {
			self.destroy();
			if (self.onComplete) {
				self.onComplete();
			}
		}
	};
	self.targetY = 0;
	self.setTargetY = function (y) {
		self.targetY = y;
	};
});
// Firework particle class
var FireworkParticle = Container.expand(function () {
	var self = Container.call(this);
	var particleGraphics = self.createAsset('fireworkParticle', 'Firework particle', 0.5, 0.5);
	self.color = 0xFFFFFF; // Default color white
	particleGraphics.tint = self.color;
	self.speedX = 0;
	self.speedY = 0;
	self.alpha = 1;
	self.scaleX = 1;
	self.scaleY = 1;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		self.alpha *= 0.98; // fade out more slowly
		self.scaleX *= 0.99;
		self.scaleY *= 0.99;
		if (self.alpha < 0.05) {
			self.destroy();
		}
	};
});
// FireworkManager class to handle multiple fireworks
var FireworkManager = Container.expand(function () {
	var self = Container.call(this);
	self.fireworks = [];
	self.launchFirework = function (x, y) {
		var firework = new Firework();
		firework.explode(x, y);
		self.fireworks.push(firework);
		game.addChild(firework);
	};
	self.update = function () {
		for (var i = self.fireworks.length - 1; i >= 0; i--) {
			self.fireworks[i].update();
			if (self.fireworks[i].particles.length === 0) {
				self.fireworks[i].destroy();
				self.fireworks.splice(i, 1);
			}
		}
	};
});
// Firework class
var Firework = Container.expand(function () {
	var self = Container.call(this);
	self.particles = [];
	self.explode = function (x, y) {
		var colors = [0xFFD700, 0x0000FF, 0x800080, 0xFF00FF, 0xFF0000];
		var randomColor = colors[Math.floor(Math.random() * colors.length)];
		for (var i = 0; i < 50; i++) {
			var particle = new FireworkParticle();
			var angle = Math.random() * Math.PI * 2;
			var speed = Math.random() * 8 + 4;
			particle.color = randomColor; // Assign random color to particle
			particle.speedX = Math.cos(angle) * speed;
			particle.speedY = Math.sin(angle) * speed;
			particle.x = x;
			particle.y = y;
			particle.createAsset('fireworkParticle', 'Firework particle', 0.5, 0.5).tint = particle.color; // Apply color tint to particle
			self.particles.push(particle);
			game.addChild(particle);
		}
	};
	self.update = function () {
		for (var i = self.particles.length - 1; i >= 0; i--) {
			self.particles[i].update();
			if (self.particles[i].alpha < 0.05) {
				self.particles.splice(i, 1);
			}
		}
	};
});

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

/**** 
* Game Code
****/
// Initialize FireworkManager
var fireworkManager = new FireworkManager();
// Event listener for mouse or touch down
game.on('down', function (obj) {
	var event = obj.event;
	var pos = event.getLocalPosition(game);
	var launchTrail = new LaunchTrail();
	launchTrail.x = pos.x;
	launchTrail.setTargetY(pos.y);
	launchTrail.onComplete = function () {
		fireworkManager.launchFirework(pos.x, pos.y);
	};
	game.addChild(launchTrail);
});
// Update function for the game
LK.on('tick', function () {
	fireworkManager.update();
	for (var i = game.children.length - 1; i >= 0; i--) {
		if (game.children[i] instanceof LaunchTrail) {
			game.children[i].update();
		}
	}
});