/**** 
* Classes
****/
var Star = Container.expand(function () {
	var self = Container.call(this);
	var sizeOptions = [0.5, 0.75, 1]; // Three sizes: small, medium, large
	var size = sizeOptions[Math.floor(Math.random() * sizeOptions.length)];
	var starGraphics = self.createAsset('star', 'Star graphics', 0.5, 0.5);
	starGraphics.scale.set(size, size);
	starGraphics.rotation = Math.random() * Math.PI * 2;
	self.x = Math.random() * 2048;
	self.y = Math.random() * 2732;
	self.update = function () {
		// Twinkle effect logic
		if (LK.ticks % (10 * 60) === 0 && Math.random() < 0.5) {
			LK.effects.flashObject(self, 0xFFFFFF, 300);
		}
	};
});
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 -= 26;
		if (self.y <= self.targetY) {
			self.destroy();
			var firework = new Firework();
			firework.explode(self.x, self.targetY);
			fireworks.push(firework);
		}
	};
	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 () {
		var gravity = 0.05;
		self.speedY += gravity;
		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();
		}
	};
});
// Firework class
var Firework = Container.expand(function () {
	var self = Container.call(this);
	self.particles = [];
	self.explode = function (x, y) {
		var colors = [0xFFD700, 0x0000FF, 0xFF0000, 0xFFC0CB, 0x800080, 0x00a32c]; // gold, blue, red, pink, deep purple, green
		var randomColor = colors[Math.floor(Math.random() * colors.length)];
		for (var i = 0; i < 100; i++) {
			var particle = new FireworkParticle();
			var angle = Math.random() * Math.PI * 2;
			var speed = Math.random() * 3 + 2;
			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 fireworks array
var fireworks = [];
// Initialize stars array
var stars = [];
// Spawn 20 stars instantly at the start of the game
for (var i = 0; i < 20; i++) {
	var star = new Star();
	stars.push(star);
	game.addChild(star);
}
// 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);
	game.addChild(launchTrail);
});
// Update function for the game
LK.on('tick', function () {
	// Spawn stars randomly, but ensure the maximum number of stars does not exceed 40
	if (stars.length < 40) {
		var chanceToSpawnStar = 0.1; // 10% chance to spawn a star each tick
		if (Math.random() < chanceToSpawnStar) {
			var star = new Star();
			stars.push(star);
			game.addChild(star);
		}
	}
	for (var i = fireworks.length - 1; i >= 0; i--) {
		fireworks[i].update();
		if (fireworks[i].particles.length === 0) {
			fireworks.splice(i, 1);
		}
	}
	for (var i = game.children.length - 1; i >= 0; i--) {
		if (game.children[i] instanceof LaunchTrail) {
			game.children[i].update();
		}
	}
});