/**** 
* Classes
****/
// Ball class
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.createAsset('ball', 'Ball asset', 0.5, 0.5);
	self.velocity = {
		x: 0,
		y: 0
	};
	self.radius = ballGraphics.width / 2;
	self.update = function () {
		self.x += self.velocity.x;
		self.y += self.velocity.y;
	};
	self.reset = function () {
		self.x = game.width / 4;
		self.y = game.height / 4;
		var angle = Math.random() * Math.PI * 2;
		self.velocity = {
			x: Math.cos(angle) * 5,
			y: Math.sin(angle) * 5
		};
	};
});
// Paddle class
var Paddle = Container.expand(function () {
	var self = Container.call(this);
	var paddleGraphics = self.createAsset('paddle', 'Paddle asset', 0.5, 0.5);
	self.update = function () {
		// Paddle update logic
	};
});
// Planet class
var Planet = Container.expand(function () {
	var self = Container.call(this);
	var planetGraphics = self.createAsset('planet', 'Planet asset', 0.5, 0.5);
	self.mass = 1000; // Arbitrary mass for gravity calculation
	self.radius = planetGraphics.width / 2;
	self.x = game.width / 2;
	self.y = game.height / 2;
});

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

/**** 
* Game Code
****/
// Initialize game elements
var ball = game.addChild(new Ball());
var leftPaddle = game.addChild(new Paddle());
var rightPaddle = game.addChild(new Paddle());
var planet = game.addChild(new Planet());
// Set initial positions
leftPaddle.x = 100;
leftPaddle.y = game.height / 2;
rightPaddle.x = game.width - 100;
rightPaddle.y = game.height / 2;
ball.reset();
// Game logic
LK.on('tick', function () {
	ball.update();
	leftPaddle.update();
	rightPaddle.update();
	// Check for collisions with paddles
	if (ball.intersects(leftPaddle) || ball.intersects(rightPaddle)) {
		ball.velocity.x *= -1;
	}
	// Check for collisions with top and bottom boundaries
	if (ball.y - ball.radius <= 0 || ball.y + ball.radius >= game.height) {
		ball.velocity.y *= -1;
	}
	// Kepler's laws for elliptical orbit around the planet
	var dx = planet.x - ball.x;
	var dy = planet.y - ball.y;
	var distanceSquared = dx * dx + dy * dy;
	var distance = Math.sqrt(distanceSquared);
	if (distance < planet.radius + ball.radius) {
		// Prevent ball from passing through the planet
		ball.reset();
	} else if (distance < game.width / 2) {
		// Apply acceleration and deceleration according to Kepler's laws
		var forceDirection = {
			x: dx / distance,
			y: dy / distance
		};
		var orbitalVelocity = Math.sqrt(planet.mass / distance);
		var angleBetween = Math.atan2(forceDirection.y, forceDirection.x) - Math.atan2(ball.velocity.y, ball.velocity.x);
		var acceleration = 2 * orbitalVelocity * Math.sin(angleBetween / 2) / 60; // Divide by 60 for per tick calculation
		self.velocity.x += forceDirection.x * acceleration;
		self.velocity.y += forceDirection.y * acceleration;
	}
	// Reset ball if it goes off screen
	if (ball.x < -ball.radius || ball.x > game.width + ball.radius) {
		ball.reset();
	}
});
// Touch controls for paddles
function handleTouch(obj) {
	var touchPos = obj.event.getLocalPosition(game);
	if (touchPos.x < game.width / 2) {
		leftPaddle.y = touchPos.y;
	} else {
		rightPaddle.y = touchPos.y;
	}
}
game.on('down', handleTouch);
game.on('move', handleTouch);