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

/**** 
* Classes
****/ 
var Ball = Container.expand(function (color, gridX, gridY) {
	var self = Container.call(this);
	self.ballColor = color;
	self.gridX = gridX;
	self.gridY = gridY;
	self.isAnimating = false;
	var ballTypes = ['ballBlue', 'ballRed', 'ballGreen', 'ballYellow', 'ballPurple', 'ballOrange'];
	var ballGraphics = self.attachAsset(ballTypes[color], {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.setGridPosition = function (newGridX, newGridY) {
		self.gridX = newGridX;
		self.gridY = newGridY;
		var worldPos = gridToWorld(newGridX, newGridY);
		self.x = worldPos.x;
		self.y = worldPos.y;
	};
	self.animateToPosition = function (newGridX, newGridY, onComplete) {
		self.isAnimating = true;
		self.gridX = newGridX;
		self.gridY = newGridY;
		var worldPos = gridToWorld(newGridX, newGridY);
		tween(self, {
			x: worldPos.x,
			y: worldPos.y
		}, {
			duration: 300,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.isAnimating = false;
				if (onComplete) onComplete();
			}
		});
	};
	return self;
});
var GridCell = Container.expand(function (gridX, gridY) {
	var self = Container.call(this);
	self.gridX = gridX;
	self.gridY = gridY;
	var cellGraphics = self.attachAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.3
	});
	var worldPos = gridToWorld(gridX, gridY);
	self.x = worldPos.x;
	self.y = worldPos.y;
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c3e50
});

/**** 
* Game Code
****/ 
var GRID_SIZE = 8;
var CELL_SIZE = 90;
var GRID_OFFSET_X = (2048 - GRID_SIZE * CELL_SIZE) / 2;
var GRID_OFFSET_Y = 400;
var gameGrid = [];
var gridCells = [];
var selectedBall = null;
var isProcessingMatches = false;
var targetScore = 1000;
var movesLeft = 20;
function gridToWorld(gridX, gridY) {
	return {
		x: GRID_OFFSET_X + gridX * CELL_SIZE + CELL_SIZE / 2,
		y: GRID_OFFSET_Y + gridY * CELL_SIZE + CELL_SIZE / 2
	};
}
function worldToGrid(worldX, worldY) {
	var gridX = Math.floor((worldX - GRID_OFFSET_X) / CELL_SIZE);
	var gridY = Math.floor((worldY - GRID_OFFSET_Y) / CELL_SIZE);
	return {
		x: Math.max(0, Math.min(GRID_SIZE - 1, gridX)),
		y: Math.max(0, Math.min(GRID_SIZE - 1, gridY))
	};
}
function getRandomBallColor() {
	return Math.floor(Math.random() * 6);
}
function initializeGrid() {
	gameGrid = [];
	for (var y = 0; y < GRID_SIZE; y++) {
		gameGrid[y] = [];
		for (var x = 0; x < GRID_SIZE; x++) {
			gameGrid[y][x] = null;
		}
	}
	// Create grid cells for visual feedback
	for (var y = 0; y < GRID_SIZE; y++) {
		for (var x = 0; x < GRID_SIZE; x++) {
			var cell = new GridCell(x, y);
			gridCells.push(cell);
			game.addChild(cell);
		}
	}
	// Fill grid with balls
	fillGrid();
}
function fillGrid() {
	for (var y = 0; y < GRID_SIZE; y++) {
		for (var x = 0; x < GRID_SIZE; x++) {
			if (gameGrid[y][x] === null) {
				var color = getRandomBallColor();
				var ball = new Ball(color, x, y);
				ball.setGridPosition(x, y);
				gameGrid[y][x] = ball;
				game.addChild(ball);
			}
		}
	}
}
function areAdjacent(x1, y1, x2, y2) {
	var dx = Math.abs(x1 - x2);
	var dy = Math.abs(y1 - y2);
	return dx === 1 && dy === 0 || dx === 0 && dy === 1;
}
function swapBalls(ball1, ball2) {
	if (!ball1 || !ball2) return;
	var tempX = ball1.gridX;
	var tempY = ball1.gridY;
	gameGrid[ball1.gridY][ball1.gridX] = ball2;
	gameGrid[ball2.gridY][ball2.gridX] = ball1;
	ball1.animateToPosition(ball2.gridX, ball2.gridY);
	ball2.animateToPosition(tempX, tempY);
	LK.getSound('swap').play();
}
function findMatches() {
	var matches = [];
	// Check horizontal matches
	for (var y = 0; y < GRID_SIZE; y++) {
		var count = 1;
		var currentColor = gameGrid[y][0] ? gameGrid[y][0].ballColor : -1;
		for (var x = 1; x < GRID_SIZE; x++) {
			var ball = gameGrid[y][x];
			if (ball && ball.ballColor === currentColor) {
				count++;
			} else {
				if (count >= 3) {
					for (var i = x - count; i < x; i++) {
						matches.push({
							x: i,
							y: y
						});
					}
				}
				currentColor = ball ? ball.ballColor : -1;
				count = 1;
			}
		}
		if (count >= 3) {
			for (var i = GRID_SIZE - count; i < GRID_SIZE; i++) {
				matches.push({
					x: i,
					y: y
				});
			}
		}
	}
	// Check vertical matches
	for (var x = 0; x < GRID_SIZE; x++) {
		var count = 1;
		var currentColor = gameGrid[0][x] ? gameGrid[0][x].ballColor : -1;
		for (var y = 1; y < GRID_SIZE; y++) {
			var ball = gameGrid[y][x];
			if (ball && ball.ballColor === currentColor) {
				count++;
			} else {
				if (count >= 3) {
					for (var i = y - count; i < y; i++) {
						matches.push({
							x: x,
							y: i
						});
					}
				}
				currentColor = ball ? ball.ballColor : -1;
				count = 1;
			}
		}
		if (count >= 3) {
			for (var i = GRID_SIZE - count; i < GRID_SIZE; i++) {
				matches.push({
					x: x,
					y: i
				});
			}
		}
	}
	return matches;
}
function removeMatches(matches) {
	if (matches.length === 0) return;
	LK.getSound('match').play();
	LK.setScore(LK.getScore() + matches.length * 10);
	scoreText.setText(LK.getScore());
	for (var i = 0; i < matches.length; i++) {
		var match = matches[i];
		var ball = gameGrid[match.y][match.x];
		if (ball) {
			// Create particle explosion effect
			createParticleExplosion(ball.x, ball.y, ball.ballColor);
			// Create explosion effect
			tween(ball, {
				scaleX: 1.5,
				scaleY: 1.5,
				alpha: 0,
				rotation: Math.PI * 2
			}, {
				duration: 300,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					ball.destroy();
				}
			});
			gameGrid[match.y][match.x] = null;
		}
	}
}
function dropBalls() {
	var ballsDropped = false;
	for (var x = 0; x < GRID_SIZE; x++) {
		var writeIndex = GRID_SIZE - 1;
		for (var y = GRID_SIZE - 1; y >= 0; y--) {
			if (gameGrid[y][x] !== null) {
				if (y !== writeIndex) {
					gameGrid[writeIndex][x] = gameGrid[y][x];
					gameGrid[y][x] = null;
					gameGrid[writeIndex][x].animateToPosition(x, writeIndex);
					ballsDropped = true;
				}
				writeIndex--;
			}
		}
		// Fill empty spaces at top
		for (var y = writeIndex; y >= 0; y--) {
			var color = getRandomBallColor();
			var ball = new Ball(color, x, y);
			ball.setGridPosition(x, -1); // Start above grid
			ball.animateToPosition(x, y);
			gameGrid[y][x] = ball;
			game.addChild(ball);
			ballsDropped = true;
		}
	}
	return ballsDropped;
}
function processMatches() {
	if (isProcessingMatches) return;
	isProcessingMatches = true;
	var matches = findMatches();
	if (matches.length > 0) {
		removeMatches(matches);
		LK.setTimeout(function () {
			if (dropBalls()) {
				LK.setTimeout(function () {
					isProcessingMatches = false;
					processMatches(); // Check for new matches
				}, 400);
			} else {
				isProcessingMatches = false;
				checkGameState();
			}
		}, 300);
	} else {
		isProcessingMatches = false;
		checkGameState();
	}
}
function createParticleExplosion(x, y, ballColor) {
	var ballTypes = ['ballBlue', 'ballRed', 'ballGreen', 'ballYellow', 'ballPurple', 'ballOrange'];
	var particleCount = 8;
	for (var i = 0; i < particleCount; i++) {
		var particle = LK.getAsset(ballTypes[ballColor], {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 0.3,
			scaleY: 0.3
		});
		particle.x = x;
		particle.y = y;
		game.addChild(particle);
		var angle = Math.PI * 2 * i / particleCount;
		var speed = 80 + Math.random() * 40;
		var targetX = x + Math.cos(angle) * speed;
		var targetY = y + Math.sin(angle) * speed;
		tween(particle, {
			x: targetX,
			y: targetY,
			scaleX: 0,
			scaleY: 0,
			alpha: 0,
			rotation: Math.PI * 4
		}, {
			duration: 400 + Math.random() * 200,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				particle.destroy();
			}
		});
	}
}
function checkGameState() {
	if (LK.getScore() >= targetScore) {
		LK.showYouWin();
		return;
	}
	if (movesLeft <= 0) {
		LK.showGameOver();
		return;
	}
}
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var movesText = new Text2('Moves: 20', {
	size: 50,
	fill: 0xFFFFFF
});
movesText.anchor.set(1, 0);
LK.gui.topRight.addChild(movesText);
var targetText = new Text2('Target: 1000', {
	size: 50,
	fill: 0xFFFFFF
});
targetText.anchor.set(0, 0);
LK.gui.topLeft.addChild(targetText);
// Initialize game
initializeGrid();
game.down = function (x, y, obj) {
	if (isProcessingMatches) return;
	var gridPos = worldToGrid(x, y);
	var ball = gameGrid[gridPos.y][gridPos.x];
	if (ball && !ball.isAnimating) {
		if (selectedBall === null) {
			selectedBall = ball;
			tween(ball, {
				scaleX: 1.2,
				scaleY: 1.2
			}, {
				duration: 200
			});
		} else if (selectedBall === ball) {
			// Deselect
			tween(selectedBall, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 200
			});
			selectedBall = null;
		} else if (areAdjacent(selectedBall.gridX, selectedBall.gridY, ball.gridX, ball.gridY)) {
			// Attempt swap
			var tempGrid = [];
			for (var i = 0; i < GRID_SIZE; i++) {
				tempGrid[i] = gameGrid[i].slice();
			}
			// Temporarily swap in grid to check for matches
			tempGrid[selectedBall.gridY][selectedBall.gridX] = ball;
			tempGrid[ball.gridY][ball.gridX] = selectedBall;
			var tempBall1 = {
				ballColor: ball.ballColor,
				gridX: selectedBall.gridX,
				gridY: selectedBall.gridY
			};
			var tempBall2 = {
				ballColor: selectedBall.ballColor,
				gridX: ball.gridX,
				gridY: ball.gridY
			};
			tempGrid[selectedBall.gridY][selectedBall.gridX] = tempBall1;
			tempGrid[ball.gridY][ball.gridX] = tempBall2;
			// Check if this swap creates any matches
			var wouldCreateMatch = false;
			var testMatches = [];
			// Check horizontal matches around swapped positions
			for (var testY = 0; testY < GRID_SIZE; testY++) {
				var count = 1;
				var currentColor = tempGrid[testY][0] ? tempGrid[testY][0].ballColor : -1;
				for (var testX = 1; testX < GRID_SIZE; testX++) {
					var testBall = tempGrid[testY][testX];
					if (testBall && testBall.ballColor === currentColor) {
						count++;
					} else {
						if (count >= 3) {
							wouldCreateMatch = true;
							break;
						}
						currentColor = testBall ? testBall.ballColor : -1;
						count = 1;
					}
				}
				if (wouldCreateMatch || count >= 3) {
					wouldCreateMatch = true;
					break;
				}
			}
			if (!wouldCreateMatch) {
				// Check vertical matches
				for (var testX = 0; testX < GRID_SIZE; testX++) {
					var count = 1;
					var currentColor = tempGrid[0][testX] ? tempGrid[0][testX].ballColor : -1;
					for (var testY = 1; testY < GRID_SIZE; testY++) {
						var testBall = tempGrid[testY][testX];
						if (testBall && testBall.ballColor === currentColor) {
							count++;
						} else {
							if (count >= 3) {
								wouldCreateMatch = true;
								break;
							}
							currentColor = testBall ? testBall.ballColor : -1;
							count = 1;
						}
					}
					if (wouldCreateMatch || count >= 3) {
						wouldCreateMatch = true;
						break;
					}
				}
			}
			if (wouldCreateMatch) {
				swapBalls(selectedBall, ball);
				movesLeft--;
				movesText.setText('Moves: ' + movesLeft);
				LK.setTimeout(function () {
					processMatches();
				}, 400);
			}
			tween(selectedBall, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 200
			});
			selectedBall = null;
		} else {
			// Select new ball
			tween(selectedBall, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 200
			});
			selectedBall = ball;
			tween(ball, {
				scaleX: 1.2,
				scaleY: 1.2
			}, {
				duration: 200
			});
		}
	}
};
game.update = function () {
	// Update UI
	scoreText.setText('Score: ' + LK.getScore());
	// Check for initial matches and remove them
	if (LK.ticks === 60) {
		// After 1 second
		processMatches();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -214,8 +214,10 @@
 	for (var i = 0; i < matches.length; i++) {
 		var match = matches[i];
 		var ball = gameGrid[match.y][match.x];
 		if (ball) {
+			// Create particle explosion effect
+			createParticleExplosion(ball.x, ball.y, ball.ballColor);
 			// Create explosion effect
 			tween(ball, {
 				scaleX: 1.5,
 				scaleY: 1.5,
@@ -281,8 +283,41 @@
 		isProcessingMatches = false;
 		checkGameState();
 	}
 }
+function createParticleExplosion(x, y, ballColor) {
+	var ballTypes = ['ballBlue', 'ballRed', 'ballGreen', 'ballYellow', 'ballPurple', 'ballOrange'];
+	var particleCount = 8;
+	for (var i = 0; i < particleCount; i++) {
+		var particle = LK.getAsset(ballTypes[ballColor], {
+			anchorX: 0.5,
+			anchorY: 0.5,
+			scaleX: 0.3,
+			scaleY: 0.3
+		});
+		particle.x = x;
+		particle.y = y;
+		game.addChild(particle);
+		var angle = Math.PI * 2 * i / particleCount;
+		var speed = 80 + Math.random() * 40;
+		var targetX = x + Math.cos(angle) * speed;
+		var targetY = y + Math.sin(angle) * speed;
+		tween(particle, {
+			x: targetX,
+			y: targetY,
+			scaleX: 0,
+			scaleY: 0,
+			alpha: 0,
+			rotation: Math.PI * 4
+		}, {
+			duration: 400 + Math.random() * 200,
+			easing: tween.easeOut,
+			onFinish: function onFinish() {
+				particle.destroy();
+			}
+		});
+	}
+}
 function checkGameState() {
 	if (LK.getScore() >= targetScore) {
 		LK.showYouWin();
 		return;