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

/**** 
* Classes
****/ 
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballColors = ['ball', 'ballBlue', 'ballGreen', 'ballYellow'];
	var randomColor = ballColors[Math.floor(Math.random() * ballColors.length)];
	var ballGraphics = self.attachAsset(randomColor, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 3 + 2; // Random speed between 2-5
	self.baseSpeed = self.speed; // Store original speed
	self.lastY = 0;
	self.lastIntersecting = false;
	self.update = function () {
		self.y += self.speed * speedMultiplier;
	};
	return self;
});
var Castle = Container.expand(function () {
	var self = Container.call(this);
	var castleGraphics = self.attachAsset('castle', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
var gameStarted = false;
var castle = game.addChild(new Castle());
castle.x = 1024; // Center horizontally
castle.y = 2732 - 50; // Near bottom with some padding
castle.visible = false; // Hide initially
var balls = [];
var lives = 3;
var ballSpawnTimer = 0;
var ballSpawnRate = 60; // Spawn every 60 ticks initially
var speedMultiplier = 1.0; // Speed multiplier for progressive difficulty
var dragNode = null;
// Score display
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.visible = false; // Hide initially
LK.gui.top.addChild(scoreTxt);
// Lives display
var livesTxt = new Text2('Lives: 3', {
	size: 60,
	fill: 0xFFFFFF
});
livesTxt.anchor.set(0, 0);
livesTxt.x = 100;
livesTxt.y = 100;
livesTxt.visible = false; // Hide initially
LK.gui.topLeft.addChild(livesTxt);
// Start screen elements
var startScreen = new Container();
LK.gui.center.addChild(startScreen);
// Game title
var titleTxt = new Text2('CASTLE BALL COLLECTOR', {
	size: 80,
	fill: 0xFFD700
});
titleTxt.anchor.set(0.5, 0.5);
titleTxt.y = -200;
startScreen.addChild(titleTxt);
// Subtitle
var subtitleTxt = new Text2('Catch the falling balls with your castle!', {
	size: 50,
	fill: 0xFFFFFF
});
subtitleTxt.anchor.set(0.5, 0.5);
subtitleTxt.y = -120;
startScreen.addChild(subtitleTxt);
// Start button
var startButton = new Text2('START', {
	size: 120,
	fill: 0x00FF00
});
startButton.anchor.set(0.5, 0.5);
startButton.y = 50;
startScreen.addChild(startButton);
// Instructions
var instructionTxt = new Text2('Drag to move castle', {
	size: 40,
	fill: 0xCCCCCC
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.y = 150;
startScreen.addChild(instructionTxt);
// Leaderboard title
var leaderboardTitle = new Text2('LEADERBOARD', {
	size: 60,
	fill: 0xFFD700
});
leaderboardTitle.anchor.set(0.5, 0.5);
leaderboardTitle.y = 220;
startScreen.addChild(leaderboardTitle);
// Get top 5 scores from storage
var topScores = storage.topScores || [];
var leaderboardTexts = [];
// Display top 5 scores
for (var s = 0; s < 5; s++) {
	var scoreText;
	if (s < topScores.length) {
		scoreText = new Text2(s + 1 + '. ' + topScores[s], {
			size: 35,
			fill: 0xFFFFFF
		});
	} else {
		scoreText = new Text2(s + 1 + '. ---', {
			size: 35,
			fill: 0x888888
		});
	}
	scoreText.anchor.set(0.5, 0.5);
	scoreText.y = 280 + s * 40;
	startScreen.addChild(scoreText);
	leaderboardTexts.push(scoreText);
}
// Start button click handler
startButton.down = function (x, y, obj) {
	gameStarted = true;
	startScreen.visible = false;
	scoreTxt.visible = true;
	livesTxt.visible = true;
	castle.visible = true;
	// Clear all existing balls when game starts
	for (var i = balls.length - 1; i >= 0; i--) {
		balls[i].destroy();
		balls.splice(i, 1);
	}
};
function handleMove(x, y, obj) {
	if (dragNode && gameStarted) {
		dragNode.x = x;
		// Keep castle within screen bounds
		if (dragNode.x < 100) dragNode.x = 100;
		if (dragNode.x > 1948) dragNode.x = 1948;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	if (gameStarted) {
		dragNode = castle;
		handleMove(x, y, obj);
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
game.update = function () {
	// Spawn balls (even during start screen for visual effect)
	ballSpawnTimer++;
	if (ballSpawnTimer >= ballSpawnRate) {
		var newBall = new Ball();
		newBall.x = Math.random() * 1848 + 100; // Random x position within screen bounds
		newBall.y = -50; // Start above screen
		newBall.lastY = newBall.y;
		newBall.lastIntersecting = false;
		balls.push(newBall);
		game.addChild(newBall);
		ballSpawnTimer = 0;
		// Only increase difficulty if game has started
		if (gameStarted) {
			// Gradually increase difficulty
			if (ballSpawnRate > 30) {
				ballSpawnRate = Math.max(30, ballSpawnRate - 0.1);
			}
			// Gradually increase speed multiplier every 300 ticks (5 seconds at 60fps)
			if (LK.ticks % 300 === 0) {
				speedMultiplier += 0.05; // Increase speed by 5% every 5 seconds
			}
		}
	}
	// Update balls
	for (var i = balls.length - 1; i >= 0; i--) {
		var ball = balls[i];
		// Check if ball went off screen (missed)
		if (ball.lastY < 2732 && ball.y >= 2732) {
			// Ball hit ground
			if (gameStarted) {
				// Only lose lives if game has started
				lives--;
				livesTxt.setText('Lives: ' + lives);
				LK.getSound('miss').play();
				LK.effects.flashScreen(0xFF0000, 300);
				if (lives <= 0) {
					// Save score to leaderboard before game over
					var currentScore = LK.getScore();
					var topScores = storage.topScores || [];
					// Add current score to leaderboard
					topScores.push(currentScore);
					// Sort scores in descending order
					topScores.sort(function (a, b) {
						return b - a;
					});
					// Keep only top 5 scores
					if (topScores.length > 5) {
						topScores = topScores.slice(0, 5);
					}
					// Save updated leaderboard
					storage.topScores = topScores;
					LK.showGameOver();
				}
			}
			ball.destroy();
			balls.splice(i, 1);
			continue;
		}
		// Check collision with castle (only if game started)
		if (gameStarted) {
			var currentIntersecting = ball.intersects(castle);
			if (!ball.lastIntersecting && currentIntersecting) {
				// Ball caught
				LK.setScore(LK.getScore() + 10);
				scoreTxt.setText('Score: ' + LK.getScore());
				LK.getSound('catch').play();
				// Flash castle green briefly
				LK.effects.flashObject(castle, 0x00FF00, 200);
				// Scale castle animation when catching ball
				tween(castle, {
					scaleX: 1.2,
					scaleY: 1.2
				}, {
					duration: 150,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						tween(castle, {
							scaleX: 1.0,
							scaleY: 1.0
						}, {
							duration: 150,
							easing: tween.easeIn
						});
					}
				});
				ball.destroy();
				balls.splice(i, 1);
				continue;
			}
		}
		// Update tracking variables
		ball.lastY = ball.y;
		ball.lastIntersecting = currentIntersecting;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -1,8 +1,9 @@
 /**** 
 * Plugins
 ****/ 
 var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1");
 
 /**** 
 * Classes
 ****/ 
@@ -105,8 +106,38 @@
 });
 instructionTxt.anchor.set(0.5, 0.5);
 instructionTxt.y = 150;
 startScreen.addChild(instructionTxt);
+// Leaderboard title
+var leaderboardTitle = new Text2('LEADERBOARD', {
+	size: 60,
+	fill: 0xFFD700
+});
+leaderboardTitle.anchor.set(0.5, 0.5);
+leaderboardTitle.y = 220;
+startScreen.addChild(leaderboardTitle);
+// Get top 5 scores from storage
+var topScores = storage.topScores || [];
+var leaderboardTexts = [];
+// Display top 5 scores
+for (var s = 0; s < 5; s++) {
+	var scoreText;
+	if (s < topScores.length) {
+		scoreText = new Text2(s + 1 + '. ' + topScores[s], {
+			size: 35,
+			fill: 0xFFFFFF
+		});
+	} else {
+		scoreText = new Text2(s + 1 + '. ---', {
+			size: 35,
+			fill: 0x888888
+		});
+	}
+	scoreText.anchor.set(0.5, 0.5);
+	scoreText.y = 280 + s * 40;
+	startScreen.addChild(scoreText);
+	leaderboardTexts.push(scoreText);
+}
 // Start button click handler
 startButton.down = function (x, y, obj) {
 	gameStarted = true;
 	startScreen.visible = false;
@@ -173,8 +204,23 @@
 				livesTxt.setText('Lives: ' + lives);
 				LK.getSound('miss').play();
 				LK.effects.flashScreen(0xFF0000, 300);
 				if (lives <= 0) {
+					// Save score to leaderboard before game over
+					var currentScore = LK.getScore();
+					var topScores = storage.topScores || [];
+					// Add current score to leaderboard
+					topScores.push(currentScore);
+					// Sort scores in descending order
+					topScores.sort(function (a, b) {
+						return b - a;
+					});
+					// Keep only top 5 scores
+					if (topScores.length > 5) {
+						topScores = topScores.slice(0, 5);
+					}
+					// Save updated leaderboard
+					storage.topScores = topScores;
 					LK.showGameOver();
 				}
 			}
 			ball.destroy();