/**** 
* Classes
****/
var Dot = Container.expand(function () {
	var self = Container.call(this);
	self.handleCollisions = function () {
		var items = dots;
		for (var i = 0; i < items.length; i++) {
			if (items[i] !== self) {
				var dx = items[i].x - self.x;
				var dy = items[i].y - self.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance < self.width / 2 + items[i].width / 2) {}
			}
		}
	};
	var dotGraphics = self.attachAsset('whiteDot', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocity = {
		x: 0,
		y: 0
	};
	self.mass = 1; // Assuming a unit mass for realistic physics simulation
	self.applyForce = function (force) {
		self.velocity.x += force.x / self.mass;
		self.velocity.y += force.y / self.mass;
	};
	self.dragging = false;
	self.color = Math.random() * 0xFFFFFF; // Assign a unique color to each dot
	self.update = function () {
		if (!self.dragging) {
			self.x += self.velocity.x;
			self.y += self.velocity.y;
			// Apply friction to simulate realistic physics
			var friction = 0.98;
			self.velocity.x *= friction;
			self.velocity.y *= friction;
			// Keep the dot within the game boundaries
			if (self.x < 0) {
				self.x = 0;
				self.velocity.x *= -1;
			} else if (self.x > 2048) {
				self.x = 2048;
				self.velocity.x *= -1;
			}
			if (self.y < 0) {
				self.y = 0;
				self.velocity.y *= -1;
			} else if (self.y > 2732) {
				self.y = 2732;
				self.velocity.y *= -1;
			}
			self.handleCollisions();
			// Add a trail effect
			var trail = LK.getAsset('whiteDot', {
				anchorX: 0.5,
				anchorY: 0.5,
				tint: self.color,
				// Use the dot's color for the trail
				alpha: 0.5
			});
			trail.x = self.x;
			trail.y = self.y;
			if (self.parent) {
				game.addChildAt(trail, game.getChildIndex(self));
			}
			LK.setTimeout(function () {
				trail.destroy();
				self.destroy();
			}, 6000);
		}
	};
	self.handleDrag = function (pos) {
		self.x = pos.x;
		self.y = pos.y;
		self.handleCollisions();
	};
});

/**** 
* Initialize Game
****/
var game = new LK.Game();

/**** 
* Game Code
****/
var dots = [];
var touchStartPos = null;
// Function to handle the start of a touch
function handleTouchStart(obj) {
	var event = obj.event;
	touchStartPos = event.getLocalPosition(game);
	for (var i = 0; i < dots.length; i++) {
		var dot = dots[i];
		var dx = touchStartPos.x - dot.x;
		var dy = touchStartPos.y - dot.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < dot.width / 2) {
			dot.dragging = true;
			break;
		}
	}
}
// Function to handle the end of a touch
function handleTouchEnd(obj) {
	if (touchStartPos) {
		var event = obj.event;
		var touchEndPos = event.getLocalPosition(game);
		var force = {
			x: touchEndPos.x - touchStartPos.x,
			y: touchEndPos.y - touchStartPos.y
		};
		for (var i = 0; i < dots.length; i++) {
			var dot = dots[i];
			if (dot.dragging) {
				dot.dragging = false;
				dot.applyForce(force);
				break;
			}
		}
		if (!dot || !dot.dragging) {
			var newDot = new Dot();
			newDot.x = touchStartPos.x;
			newDot.y = touchStartPos.y;
			newDot.applyForce(force);
			newDot.trailColor = Math.random() * 0xFFFFFF;
			dots.push(newDot);
			game.addChild(newDot);
		}
		touchStartPos = null;
	}
}
// Add event listeners for touch start and end
game.on('down', handleTouchStart);
game.on('up', handleTouchEnd);
// Update function for the game
LK.on('tick', function () {
	for (var i = dots.length - 1; i >= 0; i--) {
		dots[i].update();
		if (dots[i].dragging) {
			dots[i].handleDrag(touchStartPos);
		}
	}
});