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

/**** 
* Classes
****/ 
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	// Create obstacle graphics
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Movement properties
	self.speed = 5;
	self.direction = 1; // 1 for down, -1 for up
	self.lastIntersecting = false;
	self.update = function () {
		// Move obstacle straight down only
		self.y += self.speed;
		// Remove obstacle if it goes off screen
		if (self.y > 2732) {
			self.destroy();
		}
	};
	return self;
});
var SoccerBall = Container.expand(function () {
	var self = Container.call(this);
	// Create ball graphics
	var ballBase = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Physics properties
	self.velocityY = 0;
	self.velocityX = 0;
	self.gravity = 0.6;
	self.bounceDamping = 0.8;
	self.tapForce = -18;
	self.maxVelocityY = 25;
	self.maxVelocityX = 8;
	// Game state
	self.isGrounded = false;
	self.lastY = 0;
	self.update = function () {
		// Only update physics if game has started
		if (!gameStarted) {
			return;
		}
		// Store last position
		self.lastY = self.y;
		// Apply gravity
		self.velocityY += self.gravity;
		// Limit velocities
		if (self.velocityY > self.maxVelocityY) {
			self.velocityY = self.maxVelocityY;
		}
		if (self.velocityX > self.maxVelocityX) {
			self.velocityX = self.maxVelocityX;
		}
		if (self.velocityX < -self.maxVelocityX) {
			self.velocityX = -self.maxVelocityX;
		}
		// Update position
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Screen boundaries
		var ballRadius = 60;
		// Top boundary collision
		if (self.y - ballRadius <= 0) {
			self.y = ballRadius;
			self.velocityY = Math.abs(self.velocityY) * self.bounceDamping;
			LK.getSound('bounce').play();
		}
		// Left/right wall bouncing
		if (self.x - ballRadius <= 0) {
			self.x = ballRadius;
			self.velocityX = Math.abs(self.velocityX) * self.bounceDamping;
			LK.getSound('bounce').play();
		} else if (self.x + ballRadius >= 2048) {
			self.x = 2048 - ballRadius;
			self.velocityX = -Math.abs(self.velocityX) * self.bounceDamping;
			LK.getSound('bounce').play();
		}
		// Ground collision detection
		if (self.y + ballRadius >= 2732) {
			if (!self.isGrounded) {
				self.isGrounded = true;
				gameOver();
			}
		}
		// Add slight rotation for visual effect
		ballBase.rotation += self.velocityX * 0.02;
	};
	self.applyTapForce = function (tapX) {
		if (!self.isGrounded) {
			self.velocityY = self.tapForce;
			// Apply horizontal force based on tap position
			var screenCenter = 1024; // Screen width / 2
			var horizontalForce = 6;
			if (tapX > screenCenter) {
				// Tap on right side - move right
				self.velocityX += horizontalForce;
			} else {
				// Tap on left side - move left
				self.velocityX -= horizontalForce;
			}
			// Visual feedback
			tween(self, {
				scaleX: 1.2,
				scaleY: 1.2
			}, {
				duration: 100
			});
			tween(self, {
				scaleX: 1.0,
				scaleY: 1.0
			}, {
				duration: 200
			});
			LK.getSound('tap').play();
			// Increase score
			score++;
			updateScore();
			// Increase difficulty
			increaseDifficulty();
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var ball;
var score = 0;
var baseGravity = 0.6;
var baseTapForce = -18;
var gameStarted = false;
var obstacles = [];
var obstacleSpawnTimer = 0;
var obstacleSpawnInterval = 180; // Spawn every 3 seconds at 60fps
// Create night sky with stars
var starField = new Container();
game.addChild(starField);
// Create multiple stars of different sizes
for (var i = 0; i < 80; i++) {
	var starSize = Math.random() * 3 + 1;
	var star = LK.getAsset('centerCircle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: starSize / 400,
		scaleY: starSize / 400
	});
	star.x = Math.random() * 2048;
	star.y = Math.random() * 2732;
	star.alpha = Math.random() * 0.8 + 0.2;
	starField.addChild(star);
}
// Add a larger moon
var moon = LK.getAsset('centerCircle', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.3,
	scaleY: 0.3
});
moon.x = 1800;
moon.y = 400;
moon.alpha = 0.9;
moon.tint = 0xffffcc;
starField.addChild(moon);
// Position tracking variables
var positionGrid = {}; // Track time spent in each grid cell
var gridSize = 200; // Size of each grid cell
var positionUpdateTimer = 0;
var positionUpdateInterval = 10; // Update every 10 frames
// UI elements
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFD700
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.y = 50;
LK.gui.top.addChild(scoreTxt);
var scoreLabel = new Text2('SCORE', {
	size: 60,
	fill: 0xFFFFFF
});
scoreLabel.anchor.set(0.5, 0);
scoreLabel.y = 10;
LK.gui.top.addChild(scoreLabel);
// Welcome screen elements
var welcomeScreen = new Container();
game.addChild(welcomeScreen);
var titleTxt = new Text2('SOCCER BALL KEEPER', {
	size: 100,
	fill: 0xFFFFFF
});
titleTxt.anchor.set(0.5, 0.5);
titleTxt.x = 1024;
titleTxt.y = 800;
welcomeScreen.addChild(titleTxt);
var subtitleTxt = new Text2('HOŞGELDİNİZ', {
	size: 80,
	fill: 0xFFD700
});
subtitleTxt.anchor.set(0.5, 0.5);
subtitleTxt.x = 1024;
subtitleTxt.y = 950;
welcomeScreen.addChild(subtitleTxt);
var startButton = LK.getAsset('start', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 1.0,
	scaleY: 1.0,
	rotation: 0
});
startButton.x = 1024;
startButton.y = 1200;
startButton.interactive = true;
startButton.buttonMode = true;
startButton.alpha = 0.9;
welcomeScreen.addChild(startButton);
var startButtonText = new Text2('START', {
	size: 100,
	fill: 0xFFFFFF
});
startButtonText.anchor.set(0.5, 0.5);
startButtonText.x = 1024;
startButtonText.y = 1200;
welcomeScreen.addChild(startButtonText);
var quitButton = new Text2('QUIT', {
	size: 120,
	fill: 0xFF0000
});
quitButton.anchor.set(0.5, 0.5);
quitButton.x = 1024;
quitButton.y = 1450;
quitButton.interactive = true;
quitButton.buttonMode = true;
quitButton.alpha = 0.9;
welcomeScreen.addChild(quitButton);
// Add button hover effects
startButton.move = function () {
	startButton.alpha = 1.0;
	tween(startButton, {
		scaleX: 1.1,
		scaleY: 1.1
	}, {
		duration: 150
	});
};
quitButton.move = function () {
	quitButton.alpha = 1.0;
	tween(quitButton, {
		scaleX: 1.1,
		scaleY: 1.1
	}, {
		duration: 150
	});
};
var instructionTxt = new Text2('TAP TO KEEP THE BALL UP!', {
	size: 80,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.x = 1024;
instructionTxt.y = 900;
instructionTxt.visible = false;
game.addChild(instructionTxt);
// Add field elements
var centerLine = LK.getAsset('fieldLine', {
	anchorX: 0.5,
	anchorY: 0.5
});
centerLine.x = 1024;
centerLine.y = 1366;
game.addChild(centerLine);
var centerCircleOutline = LK.getAsset('centerCircle', {
	anchorX: 0.5,
	anchorY: 0.5
});
centerCircleOutline.x = 1024;
centerCircleOutline.y = 1366;
centerCircleOutline.alpha = 0.3;
game.addChild(centerCircleOutline);
var topGoalArea = LK.getAsset('goalArea', {
	anchorX: 0.5,
	anchorY: 0.5
});
topGoalArea.x = 1024;
topGoalArea.y = 100;
topGoalArea.alpha = 0.2;
game.addChild(topGoalArea);
var bottomGoalArea = LK.getAsset('goalArea', {
	anchorX: 0.5,
	anchorY: 0.5
});
bottomGoalArea.x = 1024;
bottomGoalArea.y = 2632;
bottomGoalArea.alpha = 0.2;
game.addChild(bottomGoalArea);
// Initialize ball but hide it initially
ball = game.addChild(new SoccerBall());
ball.x = 1024;
ball.y = 1000;
ball.visible = false;
// Hide field elements initially
centerLine.visible = false;
centerCircleOutline.visible = false;
topGoalArea.visible = false;
bottomGoalArea.visible = false;
function updateScore() {
	scoreTxt.setText(score.toString());
}
function increaseDifficulty() {
	// Slightly increase gravity and reduce tap effectiveness as score increases
	var difficultyMultiplier = Math.min(1 + score * 0.01, 1.5);
	ball.gravity = baseGravity * difficultyMultiplier;
	ball.tapForce = baseTapForce * (1 / Math.sqrt(difficultyMultiplier));
}
function gameOver() {
	LK.showGameOver();
}
function trackPlayerPosition() {
	if (!gameStarted || !ball) return;
	// Get grid coordinates
	var gridX = Math.floor(ball.x / gridSize);
	var gridY = Math.floor(ball.y / gridSize);
	var gridKey = gridX + "_" + gridY;
	// Increment time spent in this grid cell
	if (!positionGrid[gridKey]) {
		positionGrid[gridKey] = 0;
	}
	positionGrid[gridKey]++;
}
function getMostVisitedPosition() {
	var maxTime = 0;
	var mostVisitedKey = "5_7"; // Default to center area
	var mostVisitedX = 1024;
	var mostVisitedY = 1400;
	// Find grid cell with most time spent
	for (var key in positionGrid) {
		if (positionGrid[key] > maxTime) {
			maxTime = positionGrid[key];
			mostVisitedKey = key;
		}
	}
	// Convert grid key back to world coordinates
	var parts = mostVisitedKey.split("_");
	var gridX = parseInt(parts[0]);
	var gridY = parseInt(parts[1]);
	mostVisitedX = gridX * gridSize + gridSize / 2;
	mostVisitedY = gridY * gridSize + gridSize / 2;
	// Add some randomness around the most visited position
	var randomOffset = 100;
	mostVisitedX += (Math.random() - 0.5) * randomOffset;
	mostVisitedY += (Math.random() - 0.5) * randomOffset;
	// Keep within screen bounds
	mostVisitedX = Math.max(150, Math.min(1898, mostVisitedX));
	mostVisitedY = Math.max(100, Math.min(2632, mostVisitedY));
	return {
		x: mostVisitedX,
		y: mostVisitedY
	};
}
function startGame() {
	if (!gameStarted) {
		gameStarted = true;
		// Hide welcome screen
		welcomeScreen.visible = false;
		// Show game elements
		ball.visible = true;
		centerLine.visible = true;
		centerCircleOutline.visible = true;
		topGoalArea.visible = true;
		bottomGoalArea.visible = true;
		instructionTxt.visible = true;
		ball.applyTapForce(1024);
		// Clear any existing obstacles
		for (var i = 0; i < obstacles.length; i++) {
			obstacles[i].destroy();
		}
		obstacles = [];
		obstacleSpawnTimer = 0;
		// Reset position tracking
		positionGrid = {};
		positionUpdateTimer = 0;
	}
}
// Event handlers
startButton.down = function (x, y, obj) {
	startGame();
};
quitButton.down = function (x, y, obj) {
	LK.showGameOver();
};
game.down = function (x, y, obj) {
	if (gameStarted) {
		ball.applyTapForce(x);
	}
};
game.update = function () {
	// Game loop handled by ball's update method
	if (gameStarted) {
		// Track player position
		positionUpdateTimer++;
		if (positionUpdateTimer >= positionUpdateInterval) {
			positionUpdateTimer = 0;
			trackPlayerPosition();
		}
		// Spawn obstacles
		obstacleSpawnTimer++;
		if (obstacleSpawnTimer >= obstacleSpawnInterval) {
			obstacleSpawnTimer = 0;
			var obstacle = new Obstacle();
			// Spawn obstacle at random X position
			obstacle.x = Math.random() * (2048 - 500) + 250; // Random X within screen bounds, accounting for obstacle width
			obstacle.y = -50; // Start from top of screen
			obstacles.push(obstacle);
			game.addChild(obstacle);
		}
		// Check collision with obstacles
		for (var i = obstacles.length - 1; i >= 0; i--) {
			var obstacle = obstacles[i];
			var currentIntersecting = ball.intersects(obstacle);
			if (!obstacle.lastIntersecting && currentIntersecting) {
				// Collision detected - game over
				ball.isGrounded = true;
				gameOver();
				break;
			}
			obstacle.lastIntersecting = currentIntersecting;
		}
		// Remove obstacles that are too old (optional cleanup)
		if (obstacles.length > 6) {
			var oldObstacle = obstacles.shift();
			oldObstacle.destroy();
		}
	}
};
// Initial score display
updateScore();

===================================================================
--- original.js
+++ change.js
@@ -17,9 +17,9 @@
 	self.speed = 5;
 	self.direction = 1; // 1 for down, -1 for up
 	self.lastIntersecting = false;
 	self.update = function () {
-		// Move obstacle down only
+		// Move obstacle straight down only
 		self.y += self.speed;
 		// Remove obstacle if it goes off screen
 		if (self.y > 2732) {
 			self.destroy();