/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Ball = Container.expand(function (color) {
	var self = Container.call(this);
	self.color = color;
	self.ballColors = ['red', 'blue', 'green', 'yellow', 'purple', 'orange'];
	self.isSpecial = false;
	self.specialType = null; // 'explosive', 'freeze', 'rapid'
	var ballGraphics = self.attachAsset('ball_' + color, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// 5% chance for special balls
	if (Math.random() < 0.05) {
		// Start pulsing animation
		var _pulseEffect = function pulseEffect() {
			tween(ballGraphics, {
				scaleX: 1.3,
				scaleY: 1.3
			}, {
				duration: 600,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					tween(ballGraphics, {
						scaleX: 1.15,
						scaleY: 1.15
					}, {
						duration: 600,
						easing: tween.easeInOut,
						onFinish: _pulseEffect
					});
				}
			});
		};
		self.isSpecial = true;
		var specials = ['explosive', 'freeze', 'rapid'];
		self.specialType = specials[Math.floor(Math.random() * specials.length)];
		ballGraphics.alpha = 0.9;
		// Add glow effect for special balls
		ballGraphics.scaleX = 1.15;
		ballGraphics.scaleY = 1.15;
		// Add pulsing effect
		if (self.specialType === 'explosive') {
			ballGraphics.tint = 0xFF4500;
		} else if (self.specialType === 'freeze') {
			ballGraphics.tint = 0x00FFFF;
		} else if (self.specialType === 'rapid') {
			ballGraphics.tint = 0xFFFF00;
		}
		_pulseEffect();
	}
	self.trackPosition = 0;
	self.trackX = 0;
	self.trackY = 0;
	self.isMoving = false;
	return self;
});
var ChainBall = Ball.expand(function (color) {
	var self = Ball.call(this, color);
	self.chainIndex = 0;
	self.targetX = 0;
	self.targetY = 0;
	self.update = function () {
		if (self.isMoving) {
			// Smooth movement towards target position
			var dx = self.targetX - self.x;
			var dy = self.targetY - self.y;
			self.x += dx * 0.3;
			self.y += dy * 0.3;
			if (Math.abs(dx) < 1 && Math.abs(dy) < 1) {
				self.isMoving = false;
				self.x = self.targetX;
				self.y = self.targetY;
			}
		}
	};
	return self;
});
var Shooter = Container.expand(function () {
	var self = Container.call(this);
	var shooterGraphics = self.attachAsset('shooter', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add cannon barrel
	var barrel = self.attachAsset('track', {
		anchorX: 0,
		anchorY: 0.5,
		scaleX: 4,
		scaleY: 1.5,
		x: 0,
		y: 0
	});
	barrel.tint = 0x333333;
	self.angle = 0;
	self.currentBall = null;
	self.nextBall = null;
	self.rapidFire = false;
	self.rapidFireTimer = 0;
	self.shootCooldown = 0;
	self.loadBall = function () {
		if (self.currentBall) {
			self.currentBall.destroy();
		}
		self.currentBall = self.nextBall;
		if (self.currentBall) {
			self.currentBall.x = 0;
			self.currentBall.y = -40;
			self.addChild(self.currentBall);
			// Add glowing effect to current ball
			tween(self.currentBall, {
				scaleX: 1.1,
				scaleY: 1.1
			}, {
				duration: 500,
				easing: tween.easeInOut
			});
			// Start pulsing and shining animation
			animateShooterBall();
		}
		// Generate next ball
		var colors = ['red', 'blue', 'green', 'yellow', 'purple'];
		var randomColor = colors[Math.floor(Math.random() * colors.length)];
		self.nextBall = new Ball(randomColor);
	};
	self.aimAt = function (x, y) {
		var dx = x - self.x;
		var dy = y - self.y;
		self.angle = Math.atan2(dy, dx);
		self.rotation = self.angle;
	};
	self.shoot = function () {
		if (self.shootCooldown > 0 || !self.currentBall) return null;
		var ball = self.currentBall;
		self.removeChild(ball);
		// Set ball velocity
		var speed = 8;
		ball.vx = Math.cos(self.angle) * speed;
		ball.vy = Math.sin(self.angle) * speed;
		ball.x = self.x;
		ball.y = self.y;
		self.loadBall();
		// Set cooldown
		self.shootCooldown = self.rapidFire ? 10 : 20;
		LK.getSound('shoot').play();
		return ball;
	};
	self.update = function () {
		if (self.shootCooldown > 0) {
			self.shootCooldown--;
		}
		if (self.rapidFire) {
			self.rapidFireTimer--;
			if (self.rapidFireTimer <= 0) {
				self.rapidFire = false;
				// Remove glow effect
				tween.stop(self, {
					tint: true
				});
				self.tint = 0xFFFFFF;
			} else {
				// Maintain glow effect
				if (self.tint === 0xFFFFFF) {
					tween(self, {
						tint: 0xFFFF88
					}, {
						duration: 200,
						easing: tween.easeInOut
					});
				}
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x0a0a1a
});

/**** 
* Game Code
****/ 
// Create realistic space background with multiple cosmic elements
function createSpaceBackground() {
	// Create distant galaxies as background elements
	for (var i = 0; i < 4; i++) {
		var galaxy = game.addChild(LK.getAsset('centerCircle', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 8 + Math.random() * 6,
			scaleY: 6 + Math.random() * 4
		}));
		galaxy.x = Math.random() * 2048;
		galaxy.y = Math.random() * 2732;
		galaxy.alpha = 0.02 + Math.random() * 0.03;
		galaxy.tint = 0x9370DB;
		galaxy.rotation = Math.random() * Math.PI * 2;
	}
	// Create complex starfield with realistic star colors and sizes
	var starColors = [0xFFFFFF, 0xFFE4B5, 0xFFB347, 0x87CEEB, 0xF0F8FF, 0xFFF8DC];
	var starSizes = [0.5, 0.8, 1.2, 1.8, 2.5, 3.2];
	for (var layer = 0; layer < 5; layer++) {
		var numStars = layer === 0 ? 200 : layer === 1 ? 150 : layer === 2 ? 100 : layer === 3 ? 60 : 30;
		var baseAlpha = layer === 0 ? 0.2 : layer === 1 ? 0.4 : layer === 2 ? 0.6 : layer === 3 ? 0.8 : 1.0;
		for (var i = 0; i < numStars; i++) {
			var starSize = starSizes[Math.floor(Math.random() * starSizes.length)];
			var star = game.addChild(LK.getAsset('track', {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: starSize * 0.1,
				scaleY: starSize * 0.1
			}));
			star.x = Math.random() * 2048;
			star.y = Math.random() * 2732;
			star.alpha = baseAlpha + Math.random() * 0.3;
			star.tint = starColors[Math.floor(Math.random() * starColors.length)];
			// Add realistic twinkling based on star size and distance
			if (layer >= 2 && Math.random() < 0.4) {
				var twinkleDelay = Math.random() * 3000;
				LK.setTimeout(function () {
					var _twinkleEffect = function twinkleEffect() {
						if (star && star.parent) {
							tween(star, {
								alpha: star.alpha * 0.2
							}, {
								duration: 1000 + Math.random() * 800,
								easing: tween.easeInOut,
								onFinish: function onFinish() {
									if (star && star.parent) {
										tween(star, {
											alpha: baseAlpha + Math.random() * 0.3
										}, {
											duration: 1000 + Math.random() * 800,
											easing: tween.easeInOut,
											onFinish: _twinkleEffect
										});
									}
								}
							});
						}
					};
					_twinkleEffect();
				}, twinkleDelay);
			}
		}
	}
	// Add realistic planets at different distances
	var planetColors = [0xFF6B47, 0x4682B4, 0xDEB887, 0x9370DB, 0xF4A460, 0x708090];
	for (var i = 0; i < 3; i++) {
		var planet = game.addChild(LK.getAsset('centerCircle', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 1.5 + Math.random() * 2.5,
			scaleY: 1.5 + Math.random() * 2.5
		}));
		planet.x = Math.random() * 2048;
		planet.y = Math.random() * 2732;
		planet.alpha = 0.3 + Math.random() * 0.4;
		planet.tint = planetColors[Math.floor(Math.random() * planetColors.length)];
	}
	// Create animated cosmic dust clouds
	for (var i = 0; i < 12; i++) {
		var dust = game.addChild(LK.getAsset('centerCircle', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 2 + Math.random() * 3,
			scaleY: 1 + Math.random() * 2
		}));
		dust.x = Math.random() * 2048;
		dust.y = Math.random() * 2732;
		dust.alpha = 0.03 + Math.random() * 0.05;
		dust.rotation = Math.random() * Math.PI * 2;
		// Realistic dust cloud colors
		var dustColors = [0x4B0082, 0x800080, 0x8B008B, 0x9400D3, 0x1E90FF, 0x00CED1, 0x483D8B];
		dust.tint = dustColors[Math.floor(Math.random() * dustColors.length)];
		// Add slow rotation animation
		var rotationSpeed = (Math.random() - 0.5) * 0.001;
		var dustRotation = dust.rotation;
		var _dustRotate = function dustRotate() {
			if (dust && dust.parent) {
				dustRotation += rotationSpeed;
				dust.rotation = dustRotation;
				LK.setTimeout(_dustRotate, 50);
			}
		};
		_dustRotate();
	}
	// Add some brighter nebula formations
	for (var i = 0; i < 6; i++) {
		var nebula = game.addChild(LK.getAsset('centerCircle', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 4 + Math.random() * 5,
			scaleY: 3 + Math.random() * 4
		}));
		nebula.x = Math.random() * 2048;
		nebula.y = Math.random() * 2732;
		nebula.alpha = 0.08 + Math.random() * 0.12;
		nebula.rotation = Math.random() * Math.PI * 2;
		// More vibrant nebula colors
		var nebulaColors = [0xFF1493, 0x00FA9A, 0xFF4500, 0x9370DB, 0x00CED1, 0xFF69B4];
		nebula.tint = nebulaColors[Math.floor(Math.random() * nebulaColors.length)];
		// Add gentle pulsing effect
		var pulseDelay = Math.random() * 4000;
		LK.setTimeout(function () {
			var _nebulaEffect = function nebulaEffect() {
				if (nebula && nebula.parent) {
					tween(nebula, {
						alpha: nebula.alpha * 0.5,
						scaleX: nebula.scaleX * 1.1,
						scaleY: nebula.scaleY * 1.1
					}, {
						duration: 2000 + Math.random() * 1000,
						easing: tween.easeInOut,
						onFinish: function onFinish() {
							if (nebula && nebula.parent) {
								tween(nebula, {
									alpha: 0.08 + Math.random() * 0.12,
									scaleX: 4 + Math.random() * 5,
									scaleY: 3 + Math.random() * 4
								}, {
									duration: 2000 + Math.random() * 1000,
									easing: tween.easeInOut,
									onFinish: _nebulaEffect
								});
							}
						}
					});
				}
			};
			_nebulaEffect();
		}, pulseDelay);
	}
}
// Initialize space background
createSpaceBackground();
// Game variables
var chain = [];
var flyingBalls = [];
var shooter;
var trackPoints = [];
var chainSpeed = 0.0005; // Decreased normal chain speed
var normalChainSpeed = 0.0005; // Store normal speed
var fastChainSpeed = 0.004; // Fast chain speed - 4x faster
var veryFastChainSpeed = 0.01; // Very fast chain speed - 10x faster
var speedLevel = 0; // 0 = normal, 1 = fast, 2 = very fast
var chainFrozen = false;
var freezeTimer = 0;
var level = 1;
var gameWon = false;
var gameLost = false;
// Score multiplier system
var scoreMultipliers = [1.0, 1.5, 2.0]; // normal, fast, very fast
var pointsDisplays = []; // Array to track active point displays
// Create vortex track path
function createTrackPath() {
	trackPoints = [];
	var centerX = 1024;
	var centerY = 1366;
	var holeX = 1024;
	var holeY = 1200; // Hole position - closer to shooter
	var segments = 1500; // Longer track for better gameplay
	// Create single swirling path towards the hole - starts from outside and spirals inward in one continuous motion
	for (var i = 0; i < segments; i++) {
		var progress = i / segments;
		// Single spiral angle - creates one continuous swirl towards center
		var spiralAngle = progress * Math.PI * 6; // 3 full rotations for longer swirling path
		// Radius decreases linearly for smooth inward movement
		var baseRadius = 1000 * (1 - progress); // Linear decrease for steady approach to center
		// Add gentle wave motion for swirling effect
		var waveMotion = Math.sin(progress * Math.PI * 12) * (60 * (1 - progress)); // Gentle swirling motion
		var currentRadius = baseRadius + waveMotion;
		// Ensure minimum radius for playability at center
		currentRadius = Math.max(currentRadius, 40);
		// Calculate position on spiral path - interpolate towards hole position
		var spiralX = centerX + Math.cos(spiralAngle) * currentRadius;
		var spiralY = centerY + Math.sin(spiralAngle) * currentRadius;
		// Gradually move towards hole position in final segment
		var holeProgress = Math.max(0, (progress - 0.9) / 0.1); // Last 10% of track moves to hole
		var x = spiralX + (holeX - spiralX) * holeProgress;
		var y = spiralY + (holeY - spiralY) * holeProgress;
		// Ensure the path stays within screen bounds with padding
		x = Math.max(150, Math.min(1898, x));
		y = Math.max(300, Math.min(2600, y));
		trackPoints.push({
			x: x,
			y: y
		});
	}
	// Create visual track markers with vortex effect
	for (var i = 0; i < trackPoints.length; i += 6) {
		var trackMarker = game.addChild(LK.getAsset('track', {
			anchorX: 0.5,
			anchorY: 0.5
		}));
		trackMarker.x = trackPoints[i].x;
		trackMarker.y = trackPoints[i].y;
		trackMarker.alpha = 0.3 + i / trackPoints.length * 0.3; // Fade in towards center
		// Scale markers smaller as they approach center for vortex effect
		var scaleProgress = i / trackPoints.length;
		trackMarker.scaleX = 0.5 + (1 - scaleProgress) * 0.5;
		trackMarker.scaleY = 0.5 + (1 - scaleProgress) * 0.5;
	}
}
// Create hole at end of track
var hole = game.addChild(LK.getAsset('hole', {
	anchorX: 0.5,
	anchorY: 0.5
}));
// Create shooter
shooter = game.addChild(new Shooter());
shooter.x = 1024; // Center of screen horizontally (2048/2 = 1024)
shooter.y = 1366; // Position near the center hole
// Initialize first balls
shooter.loadBall();
shooter.loadBall();
// Create initial chain
function createChain() {
	chain = [];
	var chainLength = 15 + level * 5;
	var colors = ['red', 'blue', 'green', 'yellow', 'purple'];
	var ballSpacing = 50; // Space between balls - balls touch each other
	var trackSpacing = 5.0; // Increased track position spacing to prevent overlap
	// Ensure better color distribution by cycling through colors
	for (var i = 0; i < chainLength; i++) {
		// Use a mix of sequential and random distribution
		var colorIndex;
		if (i % 8 < 5) {
			// First 5 of every 8 balls use sequential colors
			colorIndex = i % colors.length;
		} else {
			// Last 3 of every 8 balls use random colors
			colorIndex = Math.floor(Math.random() * colors.length);
		}
		var color = colors[colorIndex];
		var ball = game.addChild(new ChainBall(color));
		ball.chainIndex = i;
		// Initialize track position with consistent spacing for vortex
		ball.trackPosition = i * 7.0; // Use consistent spacing to prevent overlap
		// Position ball immediately on track
		positionBallOnTrack(ball, ball.trackPosition);
		chain.push(ball);
	}
}
// Position ball on track
function positionBallOnTrack(ball, trackPosition) {
	if (trackPosition >= trackPoints.length || trackPoints.length === 0) {
		if (trackPoints.length > 0) {
			ball.x = trackPoints[trackPoints.length - 1].x;
			ball.y = trackPoints[trackPoints.length - 1].y;
		} else {
			ball.x = 1024;
			ball.y = 1366;
		}
		return;
	}
	var pointIndex = Math.floor(Math.max(0, trackPosition));
	var nextIndex = Math.min(pointIndex + 1, trackPoints.length - 1);
	var t = trackPosition - pointIndex;
	var point1 = trackPoints[pointIndex];
	var point2 = trackPoints[nextIndex];
	// Add safety check for undefined points
	if (!point1 || !point2) {
		ball.x = 1024;
		ball.y = 1366;
		ball.isMoving = false;
		return;
	}
	// Calculate position with anti-overlap adjustment near the hole
	var baseX = point1.x + (point2.x - point1.x) * t;
	var baseY = point1.y + (point2.y - point1.y) * t;
	// Apply spacing adjustment to prevent overlap near hole
	var progressToHole = trackPosition / trackPoints.length;
	if (progressToHole > 0.8) {
		// Near the hole (last 20% of track)
		// Add slight offset based on ball's chain position to prevent stacking
		var offsetAngle = ball.chainIndex * 0.3; // Small angular offset per ball
		var offsetRadius = 15 * (progressToHole - 0.8) * 5; // Increase offset near hole
		baseX += Math.cos(offsetAngle) * offsetRadius;
		baseY += Math.sin(offsetAngle) * offsetRadius;
	}
	ball.targetX = baseX;
	ball.targetY = baseY;
	ball.isMoving = true;
}
// Update chain positions
function updateChain() {
	if (chainFrozen) {
		freezeTimer--;
		if (freezeTimer <= 0) {
			chainFrozen = false;
			// Remove ice tint from all chain balls
			for (var i = 0; i < chain.length; i++) {
				var chainBall = chain[i];
				tween(chainBall, {
					tint: 0xFFFFFF
				}, {
					duration: 300
				});
			}
		}
		return;
	}
	// Move all balls forward and maintain equal spacing for vortex
	var trackSpacing = 7.0; // Increased spacing to prevent overlap, especially near hole
	for (var i = 0; i < chain.length; i++) {
		var ball = chain[i];
		// Move chain forward in vortex pattern
		ball.trackPosition += chainSpeed;
		// Check if reached hole (vortex center)
		if (ball.trackPosition >= trackPoints.length - 1) {
			gameLost = true;
			LK.showGameOver();
			return;
		}
	}
	// Maintain equal spacing between balls for vortex movement
	for (var i = 0; i < chain.length; i++) {
		var ball = chain[i];
		// Ensure proper spacing from previous ball
		if (i > 0) {
			var previousBall = chain[i - 1];
			var expectedPosition = previousBall.trackPosition + trackSpacing;
			// Enforce minimum spacing to prevent overlap
			ball.trackPosition = Math.max(ball.trackPosition, expectedPosition);
		}
		positionBallOnTrack(ball, ball.trackPosition);
	}
}
// Check for matches
function checkMatches() {
	var matches = [];
	var currentColor = null;
	var currentMatch = [];
	// First, ensure all balls are positioned correctly on the track
	for (var i = 0; i < chain.length; i++) {
		var ball = chain[i];
		positionBallOnTrack(ball, ball.trackPosition);
	}
	// Check for consecutive balls of the same color
	for (var i = 0; i < chain.length; i++) {
		var ball = chain[i];
		if (ball.color === currentColor) {
			currentMatch.push(ball);
		} else {
			if (currentMatch.length >= 3) {
				matches.push(currentMatch.slice());
			}
			currentColor = ball.color;
			currentMatch = [ball];
		}
	}
	// Check last group
	if (currentMatch.length >= 3) {
		matches.push(currentMatch.slice());
	}
	// Remove matches
	for (var m = 0; m < matches.length; m++) {
		var match = matches[m];
		var baseScore = match.length * 10;
		var multiplier = scoreMultipliers[speedLevel];
		var score = Math.floor(baseScore * multiplier);
		// Calculate display position (center of the match)
		var displayX = 0;
		var displayY = 0;
		for (var b = 0; b < match.length; b++) {
			displayX += match[b].x;
			displayY += match[b].y;
		}
		displayX /= match.length;
		displayY /= match.length;
		// Display flashing points
		displayPoints(score, displayX, displayY);
		// Check for special balls
		for (var b = 0; b < match.length; b++) {
			var ball = match[b];
			if (ball.isSpecial) {
				handleSpecialBall(ball);
			}
		}
		// Store the first index of the match to know where the gap starts
		var firstMatchIndex = chain.indexOf(match[0]);
		var trackSpacing = 7.0; // Increased spacing to prevent overlap
		var gapSize = match.length * trackSpacing; // Calculate gap size based on track spacing
		// Remove matched balls
		for (var b = 0; b < match.length; b++) {
			var ball = match[b];
			var index = chain.indexOf(ball);
			if (index > -1) {
				chain.splice(index, 1);
				ball.destroy();
			}
		}
		// Close the gap by moving all balls after the removed section forward
		for (var i = firstMatchIndex; i < chain.length; i++) {
			var ball = chain[i];
			// Move the ball's track position forward to close the gap
			ball.trackPosition -= gapSize;
		}
		// Re-space all balls to maintain equal intervals after gap closing
		for (var i = 1; i < chain.length; i++) {
			var previousBall = chain[i - 1];
			var currentBall = chain[i];
			var expectedPosition = previousBall.trackPosition + trackSpacing;
			// Enforce minimum spacing to prevent overlap
			currentBall.trackPosition = Math.max(currentBall.trackPosition, expectedPosition);
			// Position the ball immediately to detect matches faster
			positionBallOnTrack(currentBall, currentBall.trackPosition);
			// Animate the ball to its new position smoothly
			tween(currentBall, {
				x: currentBall.targetX,
				y: currentBall.targetY
			}, {
				duration: 200,
				// Faster animation for quicker match detection
				easing: tween.easeOut
			});
		}
		LK.setScore(LK.getScore() + score);
		LK.getSound('match').play();
		// Pull chain back slightly when balls are removed
		chainSpeed = Math.max(0.5, chainSpeed - 0.1);
	}
	// Always check for new matches after gap closure, regardless of previous matches
	// This ensures balls disappear when they touch each other after gap closure
	if (matches.length > 0) {
		// After removing matches and closing gaps, check for new matches that may have formed
		// Use a timeout to allow animations to settle before checking
		LK.setTimeout(function () {
			checkMatches();
		}, 50); // Reduced timeout for faster response
	} else {
		// Even if no matches were found initially, check again after any repositioning
		// This handles cases where balls of the same color touch after repositioning
		var hasRepositioned = false;
		for (var i = 1; i < chain.length; i++) {
			var prevBall = chain[i - 1];
			var currBall = chain[i];
			if (prevBall.color === currBall.color) {
				// Check if these balls are close enough to be considered touching
				var distance = Math.sqrt(Math.pow(currBall.x - prevBall.x, 2) + Math.pow(currBall.y - prevBall.y, 2));
				if (distance < 60) {
					// Balls are touching
					hasRepositioned = true;
					break;
				}
			}
		}
		if (hasRepositioned) {
			LK.setTimeout(function () {
				checkMatches();
			}, 50);
		}
	}
	// Check win condition
	if (chain.length === 0) {
		gameWon = true;
		level++;
		LK.showYouWin();
	}
}
// Display flashing points
function displayPoints(points, x, y) {
	var pointsText = new Text2('+' + points, {
		size: 80,
		fill: 0xFFFF00
	});
	pointsText.anchor.set(0.5, 0.5);
	pointsText.x = x;
	pointsText.y = y;
	pointsText.alpha = 1.0;
	pointsText.scaleX = 0.5;
	pointsText.scaleY = 0.5;
	game.addChild(pointsText);
	pointsDisplays.push(pointsText);
	// Animate the points display
	tween(pointsText, {
		scaleX: 1.2,
		scaleY: 1.2,
		y: y - 100
	}, {
		duration: 800,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			tween(pointsText, {
				alpha: 0,
				scaleX: 0.8,
				scaleY: 0.8
			}, {
				duration: 400,
				easing: tween.easeIn,
				onFinish: function onFinish() {
					pointsText.destroy();
					var index = pointsDisplays.indexOf(pointsText);
					if (index > -1) {
						pointsDisplays.splice(index, 1);
					}
				}
			});
		}
	});
}
// Handle special ball effects
function handleSpecialBall(ball) {
	if (ball.specialType === 'explosive') {
		var _shakeEffect = function shakeEffect() {
			if (shakeTimer < shakeDuration) {
				game.x = originalX + (Math.random() - 0.5) * shakeIntensity;
				game.y = originalY + (Math.random() - 0.5) * shakeIntensity;
				shakeTimer += 16;
				LK.setTimeout(_shakeEffect, 16);
			} else {
				game.x = originalX;
				game.y = originalY;
			}
		};
		// Remove nearby balls
		var explosionRadius = 3;
		var ballIndex = chain.indexOf(ball);
		var toRemove = [];
		for (var i = Math.max(0, ballIndex - explosionRadius); i < Math.min(chain.length, ballIndex + explosionRadius + 1); i++) {
			if (chain[i] !== ball) {
				toRemove.push(chain[i]);
			}
		}
		for (var i = 0; i < toRemove.length; i++) {
			var index = chain.indexOf(toRemove[i]);
			if (index > -1) {
				chain.splice(index, 1);
				toRemove[i].destroy();
			}
		}
		LK.effects.flashScreen(0xff8000, 300);
		// Add screen shake effect
		var originalX = game.x;
		var originalY = game.y;
		var shakeIntensity = 10;
		var shakeDuration = 300;
		var shakeTimer = 0;
		_shakeEffect();
	} else if (ball.specialType === 'freeze') {
		chainFrozen = true;
		freezeTimer = 180; // 3 seconds at 60fps
		LK.effects.flashScreen(0x00ffff, 500);
		// Add ice tint to all chain balls
		for (var i = 0; i < chain.length; i++) {
			var chainBall = chain[i];
			tween(chainBall, {
				tint: 0x88DDFF
			}, {
				duration: 300
			});
		}
	} else if (ball.specialType === 'rapid') {
		shooter.rapidFire = true;
		shooter.rapidFireTimer = 300; // 5 seconds at 60fps
		LK.effects.flashScreen(0xffff00, 200);
	}
	LK.getSound('powerup').play();
}
// Insert ball into chain
function insertBallIntoChain(ball, insertIndex) {
	var chainBall = new ChainBall(ball.color);
	chainBall.isSpecial = ball.isSpecial;
	chainBall.specialType = ball.specialType;
	chainBall.x = ball.x;
	chainBall.y = ball.y;
	chainBall.scaleX = 0.1;
	chainBall.scaleY = 0.1;
	game.addChild(chainBall);
	// Animate ball insertion
	tween(chainBall, {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 200,
		easing: tween.easeOut
	});
	chain.splice(insertIndex, 0, chainBall);
	// Update chain indices
	for (var i = 0; i < chain.length; i++) {
		chain[i].chainIndex = i;
	}
	checkMatches();
}
// Initialize game
createTrackPath();
createChain();
// Position hole at the end of the track - near the shooter
hole.x = 1024;
hole.y = 1200; // Position hole closer to shooter
// Add pulsing and shining animation to shooter ball
function animateShooterBall() {
	if (shooter.currentBall) {
		// Pulsing effect
		tween(shooter.currentBall, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 800,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(shooter.currentBall, {
					scaleX: 1.0,
					scaleY: 1.0
				}, {
					duration: 800,
					easing: tween.easeInOut,
					onFinish: animateShooterBall
				});
			}
		});
		// Shining effect with alpha animation
		tween(shooter.currentBall, {
			alpha: 0.7
		}, {
			duration: 600,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(shooter.currentBall, {
					alpha: 1.0
				}, {
					duration: 600,
					easing: tween.easeInOut
				});
			}
		});
	}
}
// Score display
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Level display
var levelTxt = new Text2('Level: 1', {
	size: 50,
	fill: 0xFFFFFF
});
levelTxt.anchor.set(0, 0);
levelTxt.x = 120;
levelTxt.y = 20;
LK.gui.top.addChild(levelTxt);
// Next ball preview
var nextBallTxt = new Text2('Next:', {
	size: 40,
	fill: 0xFFFFFF
});
nextBallTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(nextBallTxt);
// Create accelerate button
var accelerateBtn = new Text2('NORMAL', {
	size: 50,
	fill: 0xFFFFFF
});
accelerateBtn.anchor.set(1, 1);
accelerateBtn.x = -20;
accelerateBtn.y = -20;
LK.gui.bottomRight.addChild(accelerateBtn);
// Button press handler
accelerateBtn.down = function (x, y, obj) {
	speedLevel = (speedLevel + 1) % 3; // Cycle through 0, 1, 2
	if (speedLevel === 0) {
		accelerateBtn.setText('NORMAL');
		accelerateBtn.fill = 0xFFFFFF;
	} else if (speedLevel === 1) {
		accelerateBtn.setText('FAST');
		accelerateBtn.fill = 0xFFFF00;
	} else {
		accelerateBtn.setText('VERY FAST');
		accelerateBtn.fill = 0xFF4444;
	}
};
// Game input
game.down = function (x, y, obj) {
	shooter.aimAt(x, y);
	var ball = shooter.shoot();
	if (ball) {
		flyingBalls.push(ball);
		game.addChild(ball);
	}
};
// Main game loop
game.update = function () {
	if (gameWon || gameLost) return;
	// Update chain
	updateChain();
	// Update flying balls
	for (var i = flyingBalls.length - 1; i >= 0; i--) {
		var ball = flyingBalls[i];
		ball.x += ball.vx;
		ball.y += ball.vy;
		// Check collision with chain
		var inserted = false;
		var collisionIndex = -1;
		for (var j = 0; j < chain.length; j++) {
			var chainBall = chain[j];
			if (ball.intersects(chainBall)) {
				collisionIndex = j;
				break;
			}
		}
		// If collision detected, insert at collision position
		if (collisionIndex !== -1) {
			// Insert after the collided ball
			var insertIndex = collisionIndex + 1;
			var trackSpacing = 7.0; // Increased spacing to prevent overlap
			// Adjust track positions for all balls after insertion point
			for (var k = insertIndex; k < chain.length; k++) {
				chain[k].trackPosition += trackSpacing; // Move balls back to make space
			}
			insertBallIntoChain(ball, insertIndex);
			// Set the inserted ball's track position with proper spacing
			if (insertIndex < chain.length) {
				chain[insertIndex].trackPosition = chain[collisionIndex].trackPosition + trackSpacing;
				positionBallOnTrack(chain[insertIndex], chain[insertIndex].trackPosition);
			}
			// Re-space all balls after insertion to maintain equal intervals
			for (var k = insertIndex + 1; k < chain.length; k++) {
				var expectedPosition = chain[k - 1].trackPosition + trackSpacing;
				// Enforce minimum spacing to prevent overlap
				chain[k].trackPosition = Math.max(chain[k].trackPosition, expectedPosition);
			}
			ball.destroy();
			flyingBalls.splice(i, 1);
			inserted = true;
		}
		// Remove if off screen
		if (!inserted && (ball.x < -100 || ball.x > 2148 || ball.y < -100 || ball.y > 2832)) {
			ball.destroy();
			flyingBalls.splice(i, 1);
		}
	}
	// Update shooter
	shooter.update();
	// Update UI
	scoreTxt.setText('Score: ' + LK.getScore());
	levelTxt.setText('Level: ' + level);
	// Show next ball preview
	if (shooter.nextBall) {
		if (shooter.nextBall.parent) {
			shooter.nextBall.parent.removeChild(shooter.nextBall);
		}
		shooter.nextBall.x = -50;
		shooter.nextBall.y = 60;
		shooter.nextBall.scaleX = 0.8;
		shooter.nextBall.scaleY = 0.8;
		LK.gui.topRight.addChild(shooter.nextBall);
	}
	// Increase chain speed over time (faster increase)
	normalChainSpeed += 0.00005;
	// Update other speeds to maintain ratios
	fastChainSpeed = normalChainSpeed * 4; // 4x faster when fast
	veryFastChainSpeed = normalChainSpeed * 10; // 10x faster when very fast
	if (speedLevel === 0) {
		chainSpeed = normalChainSpeed;
	} else if (speedLevel === 1) {
		chainSpeed = fastChainSpeed;
	} else {
		chainSpeed = veryFastChainSpeed;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -189,43 +189,59 @@
 
 /**** 
 * Game Code
 ****/ 
-// Create space background with stars
+// Create realistic space background with multiple cosmic elements
 function createSpaceBackground() {
-	// Create multiple layers of stars for depth
-	for (var layer = 0; layer < 3; layer++) {
-		var numStars = layer === 0 ? 150 : layer === 1 ? 100 : 50;
-		var starSize = layer === 0 ? 2 : layer === 1 ? 4 : 6;
-		var starAlpha = layer === 0 ? 0.3 : layer === 1 ? 0.6 : 0.9;
+	// Create distant galaxies as background elements
+	for (var i = 0; i < 4; i++) {
+		var galaxy = game.addChild(LK.getAsset('centerCircle', {
+			anchorX: 0.5,
+			anchorY: 0.5,
+			scaleX: 8 + Math.random() * 6,
+			scaleY: 6 + Math.random() * 4
+		}));
+		galaxy.x = Math.random() * 2048;
+		galaxy.y = Math.random() * 2732;
+		galaxy.alpha = 0.02 + Math.random() * 0.03;
+		galaxy.tint = 0x9370DB;
+		galaxy.rotation = Math.random() * Math.PI * 2;
+	}
+	// Create complex starfield with realistic star colors and sizes
+	var starColors = [0xFFFFFF, 0xFFE4B5, 0xFFB347, 0x87CEEB, 0xF0F8FF, 0xFFF8DC];
+	var starSizes = [0.5, 0.8, 1.2, 1.8, 2.5, 3.2];
+	for (var layer = 0; layer < 5; layer++) {
+		var numStars = layer === 0 ? 200 : layer === 1 ? 150 : layer === 2 ? 100 : layer === 3 ? 60 : 30;
+		var baseAlpha = layer === 0 ? 0.2 : layer === 1 ? 0.4 : layer === 2 ? 0.6 : layer === 3 ? 0.8 : 1.0;
 		for (var i = 0; i < numStars; i++) {
+			var starSize = starSizes[Math.floor(Math.random() * starSizes.length)];
 			var star = game.addChild(LK.getAsset('track', {
 				anchorX: 0.5,
 				anchorY: 0.5,
 				scaleX: starSize * 0.1,
 				scaleY: starSize * 0.1
 			}));
 			star.x = Math.random() * 2048;
 			star.y = Math.random() * 2732;
-			star.alpha = starAlpha;
-			star.tint = 0xFFFFFF;
-			// Add twinkling effect to larger stars
-			if (layer === 2) {
-				var twinkleDelay = Math.random() * 2000;
+			star.alpha = baseAlpha + Math.random() * 0.3;
+			star.tint = starColors[Math.floor(Math.random() * starColors.length)];
+			// Add realistic twinkling based on star size and distance
+			if (layer >= 2 && Math.random() < 0.4) {
+				var twinkleDelay = Math.random() * 3000;
 				LK.setTimeout(function () {
 					var _twinkleEffect = function twinkleEffect() {
 						if (star && star.parent) {
 							tween(star, {
-								alpha: starAlpha * 0.3
+								alpha: star.alpha * 0.2
 							}, {
-								duration: 800 + Math.random() * 400,
+								duration: 1000 + Math.random() * 800,
 								easing: tween.easeInOut,
 								onFinish: function onFinish() {
 									if (star && star.parent) {
 										tween(star, {
-											alpha: starAlpha
+											alpha: baseAlpha + Math.random() * 0.3
 										}, {
-											duration: 800 + Math.random() * 400,
+											duration: 1000 + Math.random() * 800,
 											easing: tween.easeInOut,
 											onFinish: _twinkleEffect
 										});
 									}
@@ -237,22 +253,94 @@
 				}, twinkleDelay);
 			}
 		}
 	}
-	// Add some nebula-like effects using colored circles
-	for (var i = 0; i < 8; i++) {
+	// Add realistic planets at different distances
+	var planetColors = [0xFF6B47, 0x4682B4, 0xDEB887, 0x9370DB, 0xF4A460, 0x708090];
+	for (var i = 0; i < 3; i++) {
+		var planet = game.addChild(LK.getAsset('centerCircle', {
+			anchorX: 0.5,
+			anchorY: 0.5,
+			scaleX: 1.5 + Math.random() * 2.5,
+			scaleY: 1.5 + Math.random() * 2.5
+		}));
+		planet.x = Math.random() * 2048;
+		planet.y = Math.random() * 2732;
+		planet.alpha = 0.3 + Math.random() * 0.4;
+		planet.tint = planetColors[Math.floor(Math.random() * planetColors.length)];
+	}
+	// Create animated cosmic dust clouds
+	for (var i = 0; i < 12; i++) {
+		var dust = game.addChild(LK.getAsset('centerCircle', {
+			anchorX: 0.5,
+			anchorY: 0.5,
+			scaleX: 2 + Math.random() * 3,
+			scaleY: 1 + Math.random() * 2
+		}));
+		dust.x = Math.random() * 2048;
+		dust.y = Math.random() * 2732;
+		dust.alpha = 0.03 + Math.random() * 0.05;
+		dust.rotation = Math.random() * Math.PI * 2;
+		// Realistic dust cloud colors
+		var dustColors = [0x4B0082, 0x800080, 0x8B008B, 0x9400D3, 0x1E90FF, 0x00CED1, 0x483D8B];
+		dust.tint = dustColors[Math.floor(Math.random() * dustColors.length)];
+		// Add slow rotation animation
+		var rotationSpeed = (Math.random() - 0.5) * 0.001;
+		var dustRotation = dust.rotation;
+		var _dustRotate = function dustRotate() {
+			if (dust && dust.parent) {
+				dustRotation += rotationSpeed;
+				dust.rotation = dustRotation;
+				LK.setTimeout(_dustRotate, 50);
+			}
+		};
+		_dustRotate();
+	}
+	// Add some brighter nebula formations
+	for (var i = 0; i < 6; i++) {
 		var nebula = game.addChild(LK.getAsset('centerCircle', {
 			anchorX: 0.5,
 			anchorY: 0.5,
-			scaleX: 3 + Math.random() * 4,
+			scaleX: 4 + Math.random() * 5,
 			scaleY: 3 + Math.random() * 4
 		}));
 		nebula.x = Math.random() * 2048;
 		nebula.y = Math.random() * 2732;
-		nebula.alpha = 0.05 + Math.random() * 0.1;
-		// Random nebula colors
-		var nebulaColors = [0x4B0082, 0x800080, 0x8B008B, 0x9400D3, 0x1E90FF, 0x00CED1];
+		nebula.alpha = 0.08 + Math.random() * 0.12;
+		nebula.rotation = Math.random() * Math.PI * 2;
+		// More vibrant nebula colors
+		var nebulaColors = [0xFF1493, 0x00FA9A, 0xFF4500, 0x9370DB, 0x00CED1, 0xFF69B4];
 		nebula.tint = nebulaColors[Math.floor(Math.random() * nebulaColors.length)];
+		// Add gentle pulsing effect
+		var pulseDelay = Math.random() * 4000;
+		LK.setTimeout(function () {
+			var _nebulaEffect = function nebulaEffect() {
+				if (nebula && nebula.parent) {
+					tween(nebula, {
+						alpha: nebula.alpha * 0.5,
+						scaleX: nebula.scaleX * 1.1,
+						scaleY: nebula.scaleY * 1.1
+					}, {
+						duration: 2000 + Math.random() * 1000,
+						easing: tween.easeInOut,
+						onFinish: function onFinish() {
+							if (nebula && nebula.parent) {
+								tween(nebula, {
+									alpha: 0.08 + Math.random() * 0.12,
+									scaleX: 4 + Math.random() * 5,
+									scaleY: 3 + Math.random() * 4
+								}, {
+									duration: 2000 + Math.random() * 1000,
+									easing: tween.easeInOut,
+									onFinish: _nebulaEffect
+								});
+							}
+						}
+					});
+				}
+			};
+			_nebulaEffect();
+		}, pulseDelay);
 	}
 }
 // Initialize space background
 createSpaceBackground();