/**** 
* 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 - 120;
var stackHeight = 0;
var gameActive = true;
// Create foundation block
var foundation = new StackedBlock();
foundation.x = gameWidth / 2;
foundation.y = gameHeight - 120; // Move to bottom of screen
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; // Rope starts at top of screen
game.addChild(rope);
// Create swinging block at the end of rope
var swingingBlock = LK.getAsset('swingingBlock', {
	anchorX: 0.5,
	anchorY: 0.5
});
swingingBlock.x = 0;
swingingBlock.y = rope.height + 100; // Extend the rope length by moving block further down
rope.addChild(swingingBlock);
// Natural pendulum swing variables
var swingTime = 0;
var swingSpeed = 0.03; // Controls swing speed
var swingAmplitude = 0.6; // Controls swing range (max rotation)
// Score display
var scoreTxt = new Text2('Blocks: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Touch handler to drop the block
game.down = function (x, y, obj) {
	if (!gameActive || !swingingBlock.parent) return;
	// Get the current world position of the swinging block
	var worldPos = rope.toGlobal(swingingBlock.position);
	var gamePos = game.toLocal(worldPos);
	// Detach from rope and add to game
	rope.removeChild(swingingBlock);
	game.addChild(swingingBlock);
	// Set position in game coordinates
	swingingBlock.x = gamePos.x;
	swingingBlock.y = gamePos.y;
	// Add falling velocity
	swingingBlock.velocityY = 25; // Start with constant speed
	swingingBlock.falling = true;
};
// Update function for falling blocks
game.update = function () {
	// Update rope swing with natural pendulum motion
	if (rope && !swingingBlock.falling) {
		swingTime += swingSpeed;
		rope.rotation = Math.sin(swingTime) * swingAmplitude;
		// Add vertical swinging motion to the swinging block
		var verticalOffset = Math.cos(swingTime * 2) * 30; // Vertical swing with smaller amplitude
		swingingBlock.y = rope.height + 100 + verticalOffset;
	}
	if (swingingBlock.falling) {
		// Use constant falling speed instead of accelerating gravity
		swingingBlock.velocityY = 25; // Fixed falling speed
		swingingBlock.y += swingingBlock.velocityY;
		// Check collision with any stacked block using built-in intersects method
		var hasCollision = false;
		for (var i = 0; i < stackedBlocks.length; i++) {
			var block = stackedBlocks[i];
			if (swingingBlock.intersects(block)) {
				hasCollision = true;
				break;
			}
		}
		if (hasCollision) {
			// Find the topmost block that the swinging block collided with
			var targetBlock = null;
			var highestY = gameHeight;
			for (var k = 0; k < stackedBlocks.length; k++) {
				if (swingingBlock.intersects(stackedBlocks[k]) && stackedBlocks[k].y < highestY) {
					targetBlock = stackedBlocks[k];
					highestY = stackedBlocks[k].y;
				}
			}
			if (targetBlock) {
				// Calculate horizontal overlap between swinging block and target block
				var swingingLeft = swingingBlock.x - swingingBlock.width / 2;
				var swingingRight = swingingBlock.x + swingingBlock.width / 2;
				var targetLeft = targetBlock.x - targetBlock.width / 2;
				var targetRight = targetBlock.x + targetBlock.width / 2;
				// Find overlap boundaries
				var overlapLeft = Math.max(swingingLeft, targetLeft);
				var overlapRight = Math.min(swingingRight, targetRight);
				var overlapWidth = Math.max(0, overlapRight - overlapLeft);
				// Calculate coverage percentage of the target block
				var coverage = overlapWidth / targetBlock.width;
				// Check if coverage is at least 1/4 (0.25)
				if (coverage >= 0.25) {
					// Award 1 point
					LK.setScore(LK.getScore() + 1);
					scoreTxt.setText('Blocks: ' + LK.getScore());
					// Place block on stack
					swingingBlock.falling = false;
					swingingBlock.velocityY = 0;
					stackHeight -= 240; // Move stack up by block height
					swingingBlock.y = stackHeight;
					stackedBlocks.push(swingingBlock);
					// If this is the second red block (score 2), start sliding foundation down
					if (LK.getScore() >= 2) {
						// Move foundation and all stacked blocks down by one block height
						for (var j = 0; j < stackedBlocks.length; j++) {
							tween(stackedBlocks[j], {
								y: stackedBlocks[j].y + 240
							}, {
								duration: 500,
								easing: tween.easeInOut
							});
						}
						// Update stack height
						stackHeight += 240;
					}
					// Create new swinging block
					swingingBlock = LK.getAsset('swingingBlock', {
						anchorX: 0.5,
						anchorY: 0.5
					});
					swingingBlock.x = 0;
					swingingBlock.y = rope.height + 100;
					rope.addChild(swingingBlock);
				} else {
					// Not enough coverage - block falls and disappears
					swingingBlock.falling = true;
					// Create new swinging block immediately since this one will disappear
					var newSwingingBlock = LK.getAsset('swingingBlock', {
						anchorX: 0.5,
						anchorY: 0.5
					});
					newSwingingBlock.x = 0;
					newSwingingBlock.y = rope.height + 100;
					rope.addChild(newSwingingBlock);
					// Replace the reference
					var oldBlock = swingingBlock;
					swingingBlock = newSwingingBlock;
					// Let the old block continue falling and disappear off screen
				}
			}
		}
		// Check if block has fallen below the screen
		else if (swingingBlock.y > gameHeight + 200) {
			// Game over - player missed the target
			gameActive = false;
			LK.showGameOver();
		}
	}
};
;

===================================================================
--- original.js
+++ change.js
@@ -115,17 +115,19 @@
 					highestY = stackedBlocks[k].y;
 				}
 			}
 			if (targetBlock) {
-				// Calculate coverage based on X-axis overlap
+				// Calculate horizontal overlap between swinging block and target block
 				var swingingLeft = swingingBlock.x - swingingBlock.width / 2;
 				var swingingRight = swingingBlock.x + swingingBlock.width / 2;
 				var targetLeft = targetBlock.x - targetBlock.width / 2;
 				var targetRight = targetBlock.x + targetBlock.width / 2;
+				// Find overlap boundaries
 				var overlapLeft = Math.max(swingingLeft, targetLeft);
 				var overlapRight = Math.min(swingingRight, targetRight);
 				var overlapWidth = Math.max(0, overlapRight - overlapLeft);
-				var coverage = overlapWidth / swingingBlock.width;
+				// Calculate coverage percentage of the target block
+				var coverage = overlapWidth / targetBlock.width;
 				// Check if coverage is at least 1/4 (0.25)
 				if (coverage >= 0.25) {
 					// Award 1 point
 					LK.setScore(LK.getScore() + 1);
@@ -158,10 +160,22 @@
 					swingingBlock.x = 0;
 					swingingBlock.y = rope.height + 100;
 					rope.addChild(swingingBlock);
 				} else {
-					// Not enough coverage - continue falling
+					// Not enough coverage - block falls and disappears
 					swingingBlock.falling = true;
+					// Create new swinging block immediately since this one will disappear
+					var newSwingingBlock = LK.getAsset('swingingBlock', {
+						anchorX: 0.5,
+						anchorY: 0.5
+					});
+					newSwingingBlock.x = 0;
+					newSwingingBlock.y = rope.height + 100;
+					rope.addChild(newSwingingBlock);
+					// Replace the reference
+					var oldBlock = swingingBlock;
+					swingingBlock = newSwingingBlock;
+					// Let the old block continue falling and disappear off screen
 				}
 			}
 		}
 		// Check if block has fallen below the screen