/**** 
* Classes
****/ 
var BoxBoundary = Container.expand(function () {
	var self = Container.call(this);
	// Create four walls for the box
	var topWall = self.attachAsset('boxBorder', {
		anchorX: 0,
		anchorY: 0,
		width: 1600,
		height: 8
	});
	var bottomWall = self.attachAsset('boxBorder', {
		anchorX: 0,
		anchorY: 0,
		width: 1600,
		height: 8
	});
	var leftWall = self.attachAsset('boxBorder', {
		anchorX: 0,
		anchorY: 0,
		width: 8,
		height: 1200
	});
	var rightWall = self.attachAsset('boxBorder', {
		anchorX: 0,
		anchorY: 0,
		width: 8,
		height: 1200
	});
	// Position walls
	topWall.x = 0;
	topWall.y = 0;
	bottomWall.x = 0;
	bottomWall.y = 1200 - 8;
	leftWall.x = 0;
	leftWall.y = 0;
	rightWall.x = 1600 - 8;
	rightWall.y = 0;
	return self;
});
var Heart = Container.expand(function () {
	var self = Container.call(this);
	var heartGraphics = self.attachAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xf0f8ff
});

/**** 
* Game Code
****/ 
// Box dimensions
var boxX = 224; // Center the 1600px box in 2048px screen
var boxY = 766; // Center the 1200px box in 2732px screen
var boxWidth = 1600;
var boxHeight = 1200;
// Create box boundary
var boundary = game.addChild(new BoxBoundary());
boundary.x = boxX;
boundary.y = boxY;
// Create heart character
var heart = game.addChild(new Heart());
heart.x = boxX + boxWidth / 2; // Center of box
heart.y = boxY + boxHeight / 2; // Center of box
// Dragging variables
var isDragging = false;
var dragOffsetX = 0;
var dragOffsetY = 0;
// Constraint function to keep heart within boundaries
function constrainHeartPosition() {
	var heartRadius = 50; // Half of heart width/height
	// Left boundary
	if (heart.x - heartRadius < boxX + 8) {
		heart.x = boxX + 8 + heartRadius;
	}
	// Right boundary
	if (heart.x + heartRadius > boxX + boxWidth - 8) {
		heart.x = boxX + boxWidth - 8 - heartRadius;
	}
	// Top boundary
	if (heart.y - heartRadius < boxY + 8) {
		heart.y = boxY + 8 + heartRadius;
	}
	// Bottom boundary
	if (heart.y + heartRadius > boxY + boxHeight - 8) {
		heart.y = boxY + boxHeight - 8 - heartRadius;
	}
}
// Touch/mouse down event
game.down = function (x, y, obj) {
	// Check if touch is on the heart
	var heartBounds = {
		left: heart.x - 50,
		right: heart.x + 50,
		top: heart.y - 50,
		bottom: heart.y + 50
	};
	if (x >= heartBounds.left && x <= heartBounds.right && y >= heartBounds.top && y <= heartBounds.bottom) {
		isDragging = true;
		dragOffsetX = x - heart.x;
		dragOffsetY = y - heart.y;
	}
};
// Touch/mouse move event
game.move = function (x, y, obj) {
	if (isDragging) {
		heart.x = x - dragOffsetX;
		heart.y = y - dragOffsetY;
		constrainHeartPosition();
	}
};
// Touch/mouse up event
game.up = function (x, y, obj) {
	isDragging = false;
	dragOffsetX = 0;
	dragOffsetY = 0;
};
// Movement variables
var heartSpeed = 3;
var movementDirection = {
	x: 1,
	y: 0.5
}; // Initial movement direction
var lastDirectionChangeTime = 0;
var directionChangeInterval = 2000; // Change direction every 2 seconds
// Game update loop
game.update = function () {
	// Auto movement - change direction periodically
	if (LK.ticks % 120 === 0) {
		// Every 2 seconds at 60fps
		movementDirection.x = (Math.random() - 0.5) * 2; // Random x direction between -1 and 1
		movementDirection.y = (Math.random() - 0.5) * 2; // Random y direction between -1 and 1
	}
	// Apply movement if not being dragged
	if (!isDragging) {
		heart.x += movementDirection.x * heartSpeed;
		heart.y += movementDirection.y * heartSpeed;
	}
	// Ensure heart stays within bounds each frame
	constrainHeartPosition();
	// Bounce off walls by reversing direction
	var heartRadius = 50;
	if (heart.x - heartRadius <= boxX + 8 || heart.x + heartRadius >= boxX + boxWidth - 8) {
		movementDirection.x *= -1; // Reverse horizontal direction
	}
	if (heart.y - heartRadius <= boxY + 8 || heart.y + heartRadius >= boxY + boxHeight - 8) {
		movementDirection.y *= -1; // Reverse vertical direction
	}
};

===================================================================
--- original.js
+++ change.js
@@ -123,9 +123,36 @@
 	isDragging = false;
 	dragOffsetX = 0;
 	dragOffsetY = 0;
 };
+// Movement variables
+var heartSpeed = 3;
+var movementDirection = {
+	x: 1,
+	y: 0.5
+}; // Initial movement direction
+var lastDirectionChangeTime = 0;
+var directionChangeInterval = 2000; // Change direction every 2 seconds
 // Game update loop
 game.update = function () {
+	// Auto movement - change direction periodically
+	if (LK.ticks % 120 === 0) {
+		// Every 2 seconds at 60fps
+		movementDirection.x = (Math.random() - 0.5) * 2; // Random x direction between -1 and 1
+		movementDirection.y = (Math.random() - 0.5) * 2; // Random y direction between -1 and 1
+	}
+	// Apply movement if not being dragged
+	if (!isDragging) {
+		heart.x += movementDirection.x * heartSpeed;
+		heart.y += movementDirection.y * heartSpeed;
+	}
 	// Ensure heart stays within bounds each frame
 	constrainHeartPosition();
+	// Bounce off walls by reversing direction
+	var heartRadius = 50;
+	if (heart.x - heartRadius <= boxX + 8 || heart.x + heartRadius >= boxX + boxWidth - 8) {
+		movementDirection.x *= -1; // Reverse horizontal direction
+	}
+	if (heart.y - heartRadius <= boxY + 8 || heart.y + heartRadius >= boxY + boxHeight - 8) {
+		movementDirection.y *= -1; // Reverse vertical direction
+	}
 };
\ No newline at end of file