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

/**** 
* Classes
****/ 
var BingoCard = Container.expand(function (cardIndex) {
	var self = Container.call(this);
	self.cardIndex = cardIndex;
	self.numbers = [];
	self.bingoNumbers = [];
	self.cardBg = self.attachAsset('bingoCard', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Generate 15 random unique numbers between 1-75
	self.generateNumbers = function () {
		var availableNumbers = [];
		for (var i = 1; i <= 75; i++) {
			availableNumbers.push(i);
		}
		for (var j = 0; j < 15; j++) {
			var randomIndex = Math.floor(Math.random() * availableNumbers.length);
			self.numbers.push(availableNumbers[randomIndex]);
			availableNumbers.splice(randomIndex, 1);
		}
	};
	self.createNumberGrid = function () {
		var startX = -270;
		var startY = -90;
		var spacingX = 135;
		var spacingY = 90;
		for (var row = 0; row < 3; row++) {
			self.bingoNumbers[row] = [];
			for (var col = 0; col < 5; col++) {
				var numberIndex = row * 5 + col;
				var bingoNumber = new BingoNumber(self.numbers[numberIndex], self.cardIndex, row, col);
				bingoNumber.x = startX + col * spacingX;
				bingoNumber.y = startY + row * spacingY;
				self.addChild(bingoNumber);
				self.bingoNumbers[row][col] = bingoNumber;
			}
		}
	};
	self.generateNumbers();
	self.createNumberGrid();
	return self;
});
var BingoNumber = Container.expand(function (number, cardIndex, row, col) {
	var self = Container.call(this);
	self.number = number;
	self.cardIndex = cardIndex;
	self.row = row;
	self.col = col;
	self.isMarked = false;
	self.bg = self.attachAsset('bingoNumber', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.numberText = new Text2(number.toString(), {
		size: 43,
		fill: 0x000000
	});
	self.numberText.anchor.set(0.5, 0.5);
	self.addChild(self.numberText);
	self.markNumber = function () {
		if (!self.isMarked) {
			self.isMarked = true;
			self.removeChild(self.bg);
			self.bg = self.attachAsset('markedNumber', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			// Replace the text with white color
			self.removeChild(self.numberText);
			self.numberText = new Text2(self.number.toString(), {
				size: 43,
				fill: 0xFFFFFF
			});
			self.numberText.anchor.set(0.5, 0.5);
			self.addChild(self.numberText);
			LK.getSound('numberMarked').play();
			// Check for completed lines
			checkForCompletedLines(self.cardIndex);
		}
	};
	self.down = function (x, y, obj) {
		// Numbers are now automatically marked, no manual interaction needed
	};
	return self;
});
var NumberBubble = Container.expand(function (number) {
	var self = Container.call(this);
	self.number = number;
	self.speed = -3;
	self.floatSpeed = 0;
	// Create bubble background
	self.bubbleBg = self.attachAsset('numberBubble', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Create number text
	self.numberText = new Text2(number.toString(), {
		size: 32,
		fill: 0xFFFFFF
	});
	self.numberText.anchor.set(0.5, 0.5);
	self.addChild(self.numberText);
	// Calculate position in three horizontal rows
	var bubblesPerRow = 25; // 25 bubbles per row (75 total / 3 rows)
	var bubbleSpacing = 80; // Spacing between bubbles
	var rowSpacing = 90; // Spacing between rows
	var startX = 50; // Start position for each row
	var startY = 120; // Y position for first row
	var currentBubbleCount = numberBubbles.length;
	// Calculate which row and position within row
	var row = Math.floor(currentBubbleCount / bubblesPerRow);
	var positionInRow = currentBubbleCount % bubblesPerRow;
	// Set target position in three rows
	var targetX = startX + positionInRow * bubbleSpacing;
	var targetY = startY + row * rowSpacing;
	// Initialize position at bottom of screen for animation
	self.x = targetX;
	self.y = 2732 + 50; // Start below screen
	self.lastY = self.y;
	// Animate bubble entrance to target position
	tween(self, {
		y: targetY,
		scaleX: 1.0,
		scaleY: 1.0
	}, {
		duration: 1500,
		easing: tween.easeOut
	});
	// Add floating animation
	tween(self.bubbleBg, {
		rotation: Math.PI * 2
	}, {
		duration: 4000,
		easing: tween.linear
	});
	self.update = function () {
		// Bubbles stay fixed in position - no floating animation
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
var bingoCards = [];
var currentCalledNumber = null;
var calledNumbers = [];
var availableNumbers = [];
var callTimer = null;
var completedLines = 0;
var gameStarted = false;
var startButton = null;
var numberBubbles = [];
// Initialize available numbers
for (var i = 1; i <= 75; i++) {
	availableNumbers.push(i);
}
// Create score display
var scoreText = new Text2('0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
scoreText.y = 50;
// Create current called number display
var calledNumberContainer = new Container();
var calledNumberBg = LK.getAsset('calledNumberBg', {
	anchorX: 0.5,
	anchorY: 0.5
});
calledNumberContainer.addChild(calledNumberBg);
var calledNumberText = new Text2('--', {
	size: 36,
	fill: 0xFFFFFF
});
calledNumberText.anchor.set(0.5, 0.5);
calledNumberContainer.addChild(calledNumberText);
game.addChild(calledNumberContainer);
calledNumberContainer.x = 1024;
calledNumberContainer.y = 150;
// Create info text
var infoText = new Text2('Tap START to begin the game!', {
	size: 30,
	fill: 0xFFFFFF
});
infoText.anchor.set(0.5, 0.5);
game.addChild(infoText);
infoText.x = 1024;
infoText.y = 250;
// Create start button
startButton = new Container();
var startButtonBg = LK.getAsset('startButton', {
	anchorX: 0.5,
	anchorY: 0.5
});
startButton.addChild(startButtonBg);
var startButtonText = new Text2('START', {
	size: 32,
	fill: 0xFFFFFF
});
startButtonText.anchor.set(0.5, 0.5);
startButton.addChild(startButtonText);
startButton.x = 1024;
startButton.y = 2500;
game.addChild(startButton);
startButton.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		game.removeChild(startButton);
		startButton = null;
		infoText.setText('Cards fill automatically as numbers are called!');
		// Start the game
		LK.setTimeout(callNextNumber, 250);
	}
};
// Create bingo cards - centered on screen
for (var c = 0; c < 4; c++) {
	var card = new BingoCard(c);
	var row = Math.floor(c / 2);
	var col = c % 2;
	// Center cards on 2048x2732 screen - 2 cards per row
	var cardSpacingX = 900; // Space between cards horizontally
	var cardSpacingY = 630; // Space between cards vertically
	var totalWidth = cardSpacingX; // Width for 2 cards
	var totalHeight = cardSpacingY; // Height for 2 rows
	var startX = (2048 - totalWidth) / 2; // Center horizontally
	var startY = 800; // Position below the UI elements
	card.x = startX + col * cardSpacingX;
	card.y = startY + row * cardSpacingY;
	game.addChild(card);
	bingoCards.push(card);
}
function callNextNumber() {
	if (availableNumbers.length > 0) {
		var randomIndex = Math.floor(Math.random() * availableNumbers.length);
		currentCalledNumber = availableNumbers[randomIndex];
		availableNumbers.splice(randomIndex, 1);
		calledNumbers.push(currentCalledNumber);
		calledNumberText.setText(currentCalledNumber.toString());
		LK.getSound('numberCalled').play();
		// Create red bubble for the called number
		var bubble = new NumberBubble(currentCalledNumber);
		game.addChild(bubble);
		numberBubbles.push(bubble);
		// Automatically mark the called number on all cards with reduced probability
		for (var cardIndex = 0; cardIndex < bingoCards.length; cardIndex++) {
			var card = bingoCards[cardIndex];
			for (var row = 0; row < 3; row++) {
				for (var col = 0; col < 5; col++) {
					var bingoNumber = card.bingoNumbers[row][col];
					if (bingoNumber.number === currentCalledNumber && !bingoNumber.isMarked) {
						// Only mark the number 70% of the time to reduce card fill probability
						if (Math.random() < 0.7) {
							bingoNumber.markNumber();
							LK.setScore(LK.getScore() + 10);
							scoreText.setText(LK.getScore());
						}
					}
				}
			}
		}
		// Flash the called number
		tween(calledNumberBg, {
			tint: 0xffff00
		}, {
			duration: 200
		});
		tween(calledNumberBg, {
			tint: 0xffffff
		}, {
			duration: 200
		});
		// Schedule next number call
		var delay = Math.max(500 - completedLines * 25, 250);
		callTimer = LK.setTimeout(callNextNumber, delay);
	}
}
function checkForCompletedLines(cardIndex) {
	var card = bingoCards[cardIndex];
	var newLinesCompleted = 0;
	// Check horizontal lines
	for (var row = 0; row < 3; row++) {
		var lineComplete = true;
		for (var col = 0; col < 5; col++) {
			if (!card.bingoNumbers[row][col].isMarked) {
				lineComplete = false;
				break;
			}
		}
		if (lineComplete) {
			newLinesCompleted++;
		}
	}
	// Check vertical lines
	for (var col = 0; col < 5; col++) {
		var lineComplete = true;
		for (var row = 0; row < 3; row++) {
			if (!card.bingoNumbers[row][col].isMarked) {
				lineComplete = false;
				break;
			}
		}
		if (lineComplete) {
			newLinesCompleted++;
		}
	}
	// Check diagonal lines (3x5 grid diagonals)
	// Left diagonal (top-left to bottom-right)
	if (card.bingoNumbers[0][0].isMarked && card.bingoNumbers[1][2].isMarked && card.bingoNumbers[2][4].isMarked) {
		newLinesCompleted++;
	}
	// Right diagonal (top-right to bottom-left)
	if (card.bingoNumbers[0][4].isMarked && card.bingoNumbers[1][2].isMarked && card.bingoNumbers[2][0].isMarked) {
		newLinesCompleted++;
	}
	if (newLinesCompleted > 0) {
		completedLines += newLinesCompleted;
		LK.getSound('lineComplete').play();
		LK.setScore(LK.getScore() + newLinesCompleted * 100);
		scoreText.setText(LK.getScore());
		// Flash the card
		tween(card.cardBg, {
			tint: 0x00ff00
		}, {
			duration: 300
		});
		tween(card.cardBg, {
			tint: 0xffffff
		}, {
			duration: 300
		});
		// Check for full card completion
		var allMarked = true;
		for (var r = 0; r < 3; r++) {
			for (var c = 0; c < 5; c++) {
				if (!card.bingoNumbers[r][c].isMarked) {
					allMarked = false;
					break;
				}
			}
			if (!allMarked) break;
		}
		if (allMarked) {
			LK.setScore(LK.getScore() + 500);
			scoreText.setText(LK.getScore());
			// Check win condition - 3 completed lines or 1 full card
			if (completedLines >= 3) {
				LK.clearTimeout(callTimer);
				LK.setTimeout(function () {
					LK.showYouWin();
				}, 6000);
			}
		}
	}
}
// Game will start when start button is pressed
game.update = function () {
	// Update score display
	scoreText.setText(LK.getScore());
	// Bubbles now stay at the top, no cleanup needed
	// Check if all numbers have been called
	if (availableNumbers.length === 0 && calledNumbers.length === 75) {
		LK.clearTimeout(callTimer);
		if (completedLines >= 1) {
			LK.setTimeout(function () {
				LK.showYouWin();
			}, 6000);
		} else {
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 6000);
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -257,18 +257,21 @@
 		// Create red bubble for the called number
 		var bubble = new NumberBubble(currentCalledNumber);
 		game.addChild(bubble);
 		numberBubbles.push(bubble);
-		// Automatically mark the called number on all cards
+		// Automatically mark the called number on all cards with reduced probability
 		for (var cardIndex = 0; cardIndex < bingoCards.length; cardIndex++) {
 			var card = bingoCards[cardIndex];
 			for (var row = 0; row < 3; row++) {
 				for (var col = 0; col < 5; col++) {
 					var bingoNumber = card.bingoNumbers[row][col];
 					if (bingoNumber.number === currentCalledNumber && !bingoNumber.isMarked) {
-						bingoNumber.markNumber();
-						LK.setScore(LK.getScore() + 10);
-						scoreText.setText(LK.getScore());
+						// Only mark the number 70% of the time to reduce card fill probability
+						if (Math.random() < 0.7) {
+							bingoNumber.markNumber();
+							LK.setScore(LK.getScore() + 10);
+							scoreText.setText(LK.getScore());
+						}
 					}
 				}
 			}
 		}