/**** 
* Classes
****/ 
// Assets are automatically created based on usage in the code.
// Star class
var Star = Container.expand(function () {
	var self = Container.call(this);
	var starGraphics = self.attachAsset('star', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: Math.random() * 0xFFFFFF // Assign a random color tint to each star
	});
	// Initialize star position closer to the center for a 3D effect
	self.z = Math.random() * 1900 + 100; // Adjusted Z position range to prevent very small values
	self.x = (Math.random() - 0.5) * game.width * 2;
	self.y = (Math.random() - 0.5) * game.height * 2;
	// Calculate velocity based on z position to simulate speed increase as stars move closer
	// Initialize velocities considering the deltaTime for consistent movement across different frame rates
	// Removed static deltaTime, will calculate dynamically in the game tick
	// Removed redundant initial velocity calculation
	// Cap maximum speed to prevent stars from moving too fast
	self.speed = Math.min(20 + Math.random() * 10, 30); // Increase speed range for light-speed effect
	self.move = function () {
		// Update position based on velocity
		self.z += self.speed;
		// This code block is removed to prevent redundancy in position updates.
		// Reset star position and properties for smooth re-entry
		if (self.z > 2000 || self.x < -game.width || self.x > game.width * 2 || self.y < -game.height || self.y > game.height * 2) {
			self.z = Math.random() * 1900 + 100; // Reset Z to simulate continuous flow with varied depth
			self.x = (Math.random() - 0.5) * game.width * 2;
			self.y = (Math.random() - 0.5) * game.height * 2;
			self.vx = (self.x - centerX) / self.z;
			self.vy = (self.y - centerY) / self.z;
			self.speed = Math.min(50 + Math.random() * 20, 70); // Increase speed range for enhanced light-speed effect
		}
		self.x = centerX + self.vx * self.z;
		self.y = centerY + self.vy * self.z;
		// Scale star based on z position to simulate 3D effect
		var scale = Math.min(1000 / (1000 + self.z), 1.5); // Limit maximum scale to 1.5 to prevent abrupt size changes
		self.scale.x = scale;
		self.scale.y = scale;
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000010 // Slightly lighter deep space black for contrast
});

/**** 
* Game Code
****/ 
// Create a text label with a warning message
var warningTxt = new Text2('Captain?! Please confirm order to keep accelerating!?\nWe are approaching very dangerous speeds!\nAnd where the HELL are we actually going?', {
	size: 75,
	fill: "#ffffff",
	anchorX: 0.5,
	anchorY: 0.5,
	align: 'center'
});
// Center the text label on the screen
warningTxt.x = game.width / 2 - 900;
warningTxt.y = game.height / 2;
// Add the text label to the game
game.addChild(warningTxt);
var centerX = 1024;
var centerY = game.height / 2;
var stars = [];
for (var i = 0; i < 1500; i++) {
	// Increase star count for denser starfield
	var star = new Star();
	stars.push(star);
	game.addChild(star);
}
var score = 0;
// Initialize variables for cycling background color in a yoyo style
var bgColor = {
	r: 0,
	g: 16,
	b: 16
}; // Initial background color in RGB
var colorChangeTick = 0; // Tick counter for color change
var colorChangeInterval = 60; // Number of ticks between each color change
var colorDirection = 1; // Direction of color change, 1 for lighter, -1 for darker
// Score display
var scoreTxt = new Text2('0', {
	size: 100,
	fill: "#ffffff",
	anchorX: 0.5
});
LK.gui.top.addChild(scoreTxt);
// Drag character
// Game tick
LK.on('tick', function () {
	// Spawn obstacles and stars
	// Update tick counter for background color change
	colorChangeTick++;
	if (colorChangeTick >= colorChangeInterval) {
		// Adjust color components based on direction
		bgColor.r += 5 * colorDirection;
		bgColor.g += 5 * colorDirection;
		bgColor.b += 5 * colorDirection;
		// Wrap around color components if surpassing bounds
		bgColor.r = (bgColor.r + 256) % 256;
		bgColor.g = (bgColor.g + 256) % 256;
		bgColor.b = (bgColor.b + 256) % 256;
		// Convert RGB to hexadecimal format
		var newBgColor = "#" + ((1 << 24) + (bgColor.r << 16) + (bgColor.g << 8) + bgColor.b).toString(16).slice(1);
		// Apply the new background color
		game.setBackgroundColor(newBgColor);
		// Reset tick counter
		colorChangeTick = 0;
	}
	stars.forEach(function (star, index) {
		// Calculate the direction vector from the center to the star
		var dx = star.x - centerX;
		var dy = star.y - centerY;
		// Normalize the direction vector
		var length = Math.sqrt(dx * dx + dy * dy);
		dx /= length;
		dy /= length;
		// Set the star's velocity to the direction vector
		// Incorporate deltaTime to ensure frame-rate independent movement
		// Remove deltaTime calculation and directly update star position
		star.move();
		star.move();
		// R'eset star position and properties when it moves offscreen
		// Correctly use star instead of self for resetting star properties
		if (star.z <= 0 || star.x < -game.width || star.x > game.width * 2 || star.y < -game.height || star.y > game.height * 2) {
			star.z = Math.random() * 1900 + 100; // Ensure stars start further away
			star.x = (Math.random() - 0.5) * game.width * 2;
			star.y = (Math.random() - 0.5) * game.height * 2;
			star.speed = Math.min(20 + Math.random() * 10, 30); // Adjust speed for a more dynamic effect
		}
	});
});