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

/**** 
* Classes
****/ 
var StackedBlock = Container.expand(function () {
	var self = Container.call(this);
	var block = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb
});

/**** 
* Game Code
****/ 
// Game state
var stackedBlocks = [];
var gameHeight = 2732;
var gameWidth = 2048;
var groundLevel = gameHeight - 200;
var stackHeight = 0;
var gameActive = true;
// Create foundation block
var foundation = new StackedBlock();
foundation.x = gameWidth / 2;
foundation.y = groundLevel;
game.addChild(foundation);
stackedBlocks.push(foundation);
stackHeight = foundation.y;
// Create rope hanging from top center
var rope = LK.getAsset('rope', {
	anchorX: 0.5,
	anchorY: 0
});
rope.x = gameWidth / 2;
rope.y = 0;
game.addChild(rope);
// Create swinging block at the end of rope
var swingingBlock = LK.getAsset('swingingBlock', {
	anchorX: 0.5,
	anchorY: 0.5
});
swingingBlock.x = gameWidth / 2;
swingingBlock.y = rope.height;
game.addChild(swingingBlock);
// Start rope swinging animation
function startRopeSwing() {
	// Calculate swing distance for block movement
	var swingDistance = Math.sin(0.5) * rope.height;
	// Swing right
	tween(rope, {
		rotation: 0.5
	}, {
		duration: 1500,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			// Swing left
			tween(rope, {
				rotation: -0.5
			}, {
				duration: 3000,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					// Swing back right and repeat
					tween(rope, {
						rotation: 0.5
					}, {
						duration: 3000,
						easing: tween.easeInOut,
						onFinish: startRopeSwing
					});
				}
			});
		}
	});
	// Swing block right coordinated with rope
	tween(swingingBlock, {
		x: gameWidth / 2 + swingDistance
	}, {
		duration: 1500,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			// Swing block left
			tween(swingingBlock, {
				x: gameWidth / 2 - swingDistance
			}, {
				duration: 3000,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					// Swing block back right
					tween(swingingBlock, {
						x: gameWidth / 2 + swingDistance
					}, {
						duration: 3000,
						easing: tween.easeInOut
					});
				}
			});
		}
	});
}
// Start the swinging motion
startRopeSwing();
// Score display
var scoreTxt = new Text2('Blocks: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
;

===================================================================
--- original.js
+++ change.js
@@ -56,8 +56,10 @@
 swingingBlock.y = rope.height;
 game.addChild(swingingBlock);
 // Start rope swinging animation
 function startRopeSwing() {
+	// Calculate swing distance for block movement
+	var swingDistance = Math.sin(0.5) * rope.height;
 	// Swing right
 	tween(rope, {
 		rotation: 0.5
 	}, {
@@ -82,25 +84,25 @@
 				}
 			});
 		}
 	});
-	// Swing block right (same timing as rope)
+	// Swing block right coordinated with rope
 	tween(swingingBlock, {
-		rotation: 0.5
+		x: gameWidth / 2 + swingDistance
 	}, {
 		duration: 1500,
 		easing: tween.easeInOut,
 		onFinish: function onFinish() {
 			// Swing block left
 			tween(swingingBlock, {
-				rotation: -0.5
+				x: gameWidth / 2 - swingDistance
 			}, {
 				duration: 3000,
 				easing: tween.easeInOut,
 				onFinish: function onFinish() {
 					// Swing block back right
 					tween(swingingBlock, {
-						rotation: 0.5
+						x: gameWidth / 2 + swingDistance
 					}, {
 						duration: 3000,
 						easing: tween.easeInOut
 					});