===================================================================
--- original.js
+++ change.js
@@ -15,9 +15,9 @@
 	// Placeholder for box speed
 	self.speedX = Math.random() * 10 - 5;
 	self.speedY = Math.random() * 10 - 5;
 	// Method for updating the box position
-	self.update = function () {
+	self._update_migrated = function () {
 		self.x += self.speedX;
 		self.y += self.speedY;
 		// Bounce the box off the edges of the screen
 		if (self.x < 0 || self.x > 2048) {
@@ -113,9 +113,9 @@
 	self.y = -100;
 	// Set the speed of the snow particle to a random value for a more natural look
 	self.speedY = Math.random() * 5 + 1;
 	// Update the position of the snow particle every frame
-	self.update = function () {
+	self._update_migrated = function () {
 		self.y += self.speedY;
 		// If the snow particle has moved off the bottom of the screen, reset its position to the top
 		if (self.y > 2732) {
 			self.y = -100;
@@ -186,25 +186,25 @@
 puzzleBoard.y = 2732 / 2 - puzzleBoard.height / 2;
 // Placeholder for the currently dragged puzzle piece
 var draggedPiece = null;
 // Event listener for dragging puzzle pieces
-game.on('down', function (obj) {
-	var pos = obj.event.getLocalPosition(game);
+game.on('down', function (x, y, obj) {
+	var pos = game.toLocal(obj.global);
 	// Check if a puzzle piece was clicked and set it as the dragged piece
 	puzzleBoard.pieces.forEach(function (piece) {
 		if (piece.containsPoint(pos)) {
 			draggedPiece = piece;
 		}
 	});
 });
-game.on('move', function (obj) {
+game.on('move', function (x, y, obj) {
 	if (draggedPiece) {
-		var pos = obj.event.getLocalPosition(game);
+		var pos = game.toLocal(obj.global);
 		draggedPiece.x = pos.x;
 		draggedPiece.y = pos.y;
 	}
 });
-game.on('up', function (obj) {
+game.on('up', function (x, y, obj) {
 	// Check if the dragged piece is in the correct position
 	if (draggedPiece && draggedPiece.isInCorrectPosition()) {
 		// Snap to correct position
 		draggedPiece.x = draggedPiece.correctX;
@@ -219,22 +219,13 @@
 // Update function for game logic
 LK.on('tick', function () {
 	// Update the flying boxes positions
 	for (var i = 0; i < flyingBoxes.length; i++) {
-		flyingBoxes[i].update();
+		flyingBoxes[i]._update_migrated();
 	}
 	// Update the snow particles
 	for (var i = 0; i < snowParticles.length; i++) {
-		snowParticles[i].update();
-		// Check if any of the snow particles intersects with a tree
-		for (var j = 0; j < trees.length; j++) {
-			if (snowParticles[i].intersects(trees[j])) {
-				// Remove the snow particle from the game
-				game.removeChild(snowParticles[i]);
-				snowParticles.splice(i, 1);
-				break;
-			}
-		}
+		snowParticles[i]._update_migrated();
 	}
 	// Check if any of the flying boxes intersects with the puzzle board
 	for (var i = 0; i < flyingBoxes.length; i++) {
 		if (flyingBoxes[i].intersects(puzzleBoard)) {