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

/**** 
* Classes
****/ 
// Class for Bubbles
var Bubble = Container.expand(function () {
	var self = Container.call(this);
	var bubbleGraphics = self.attachAsset('bubble', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -5;
	self.update = function () {
		self.x += self.speed;
		// Check for intersection with any floor
		for (var i = 0; i < floors.length; i++) {
			if (self.intersects(floors[i])) {
				// Create a PoppedBubble at the bubble's position
				var pop = game.addChild(new PoppedBubble());
				pop.x = self.x;
				pop.y = self.y;
				// Destroy the bubble
				self.destroy();
				bubbles.splice(bubbles.indexOf(self), 1);
				// Destroy the PoppedBubble after 0.5 seconds
				LK.setTimeout(function () {
					pop.destroy();
				}, 500);
				break;
			}
		}
		// Update last known positions
		self.lastX = self.x;
		self.lastY = self.y;
	};
});
//<Assets used in the game will automatically appear here>
// Class for the Dragon character
var Dragon = Container.expand(function () {
	var self = Container.call(this);
	var dragonGraphics = self.attachAsset('dragon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.isIntersectingBubble = false; // Add a variable to track if the dragon is intersecting a bubble
	self.shootBubble = function () {
		var bubble = new Bubble();
		bubble.x = self.x + 200 * self.scaleX;
		bubble.y = self.y;
		// If the dragon is looking right, the bubble should move to the right
		if (self.scale.x == 1) {
			bubble.speed = 5;
		} else {
			// If the dragon is looking left, the bubble should move to the left
			bubble.speed = -5;
		}
		game.addChild(bubble);
		bubbles.push(bubble);
	};
});
// Class for Enemies
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Enemy movement logic
	};
});
// Class for Pop
var PoppedBubble = Container.expand(function () {
	var self = Container.call(this);
	var popGraphics = self.attachAsset('poppedBubble', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
// Check for dragon movement and floor intersection
if (dragon.lastX !== undefined && dragon.x !== dragon.lastX) {
	for (var i = 0; i < floors.length; i++) {
		if (dragon.intersects(floors[i])) {
			// Stop the dragon at the point of intersection
			tween.stop(dragon, {
				x: true
			});
			break;
		}
	}
}
// Update last known dragon position
dragon.lastX = dragon.x;
//<Assets used in the game will automatically appear here>
game.move = function (x, y, obj) {
	// Interpolate dragon's x position to target x over 0.5 seconds
	tween(dragon, {
		x: x
	}, {
		duration: 500,
		easing: tween.linear
	});
	// Adjust dragon's scale based on x position
	if (x > 1024) {
		dragon.scale.x = -1;
	} else {
		dragon.scale.x = 1;
	}
};
var dragon = game.addChild(new Dragon());
dragon.lastX = dragon.x; // Initialize lastX to prevent undefined error
dragon.lastX = dragon.x; // Initialize lastX to prevent undefined error
dragon.x = 1024; // Center horizontally
dragon.y = 2732 - 100 - dragon.height / 2; // Position the dragon on top of the floor
var bubbles = [];
var enemies = [];
var floors = [];
// Handle game updates
game.update = function () {
	// Update bubbles
	for (var i = bubbles.length - 1; i >= 0; i--) {
		var bubble = bubbles[i];
		bubble.update();
		// Check for bubble-bubble intersections
		for (var j = i - 1; j >= 0; j--) {
			var otherBubble = bubbles[j];
			if (bubble.intersects(otherBubble)) {
				// Create a PoppedBubble for each intersecting bubble
				var pop1 = game.addChild(new PoppedBubble());
				pop1.x = bubble.x;
				pop1.y = bubble.y;
				var pop2 = game.addChild(new PoppedBubble());
				pop2.x = otherBubble.x;
				pop2.y = otherBubble.y;
				// Destroy both bubbles
				bubble.destroy();
				otherBubble.destroy();
				bubbles.splice(i, 1);
				bubbles.splice(j, 1);
				// Destroy the PoppedBubbles after 0.5 seconds
				LK.setTimeout(function () {
					pop1.destroy();
					pop2.destroy();
				}, 500);
				break;
			}
		}
		if (bubble.y < -50) {
			bubble.destroy();
			bubbles.splice(i, 1);
		}
	}
	// Check for bubble-enemy collisions
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		for (var j = bubbles.length - 1; j >= 0; j--) {
			var bubble = bubbles[j];
			if (bubble.intersects(enemy)) {
				// Capture enemy
				enemy.destroy();
				enemies.splice(i, 1);
				bubble.destroy();
				bubbles.splice(j, 1);
				break;
			}
		}
	}
	// Check if the dragon is intersecting a bubble
	for (var i = 0; i < bubbles.length; i++) {
		if (dragon.intersects(bubbles[i])) {
			dragon.isIntersectingBubble = true;
			break;
		} else {
			dragon.isIntersectingBubble = false;
		}
	}
};
// Handle touch events for shooting bubbles
var lastShot = 0;
var lastClick = 0;
var isJumping = false; // Add a variable to track if the dragon is jumping
game.down = function (x, y, obj) {
	var now = Date.now();
	if (now - lastShot > 500) {
		dragon.shootBubble();
		lastShot = now;
	}
	if (now - lastClick < 200 && (!isJumping || dragon.isIntersectingBubble)) {
		// Only allow the dragon to jump if it is not already jumping or if it is intersecting a bubble
		isJumping = true; // Set isJumping to true when the dragon starts jumping
		// Make the dragon jump using a smooth animation
		tween(dragon, {
			y: dragon.y - 200
		}, {
			duration: 500,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				// After the jump, make the dragon fall down until it intersects a floor
				var fallInterval = LK.setInterval(function () {
					dragon.y += 5; // Apply a downward speed
					for (var i = 0; i < floors.length; i++) {
						if (dragon.intersects(floors[i])) {
							isJumping = false; // Stop falling when intersecting a floor
							LK.clearInterval(fallInterval); // Clear the interval to stop the dragon from falling
							break;
						}
					}
				}, 16); // Run the interval at approximately 60 FPS
			}
		});
		// If the dragon is intersecting a bubble, show the pop asset before destroying the bubble
		if (dragon.isIntersectingBubble) {
			for (var i = 0; i < bubbles.length; i++) {
				if (dragon.intersects(bubbles[i])) {
					var pop = game.addChild(new PoppedBubble());
					pop.x = bubbles[i].x;
					pop.y = bubbles[i].y;
					bubbles[i].destroy();
					bubbles.splice(i, 1);
					LK.setTimeout(function () {
						pop.destroy();
					}, 500);
					break;
				}
			}
		}
	}
	lastClick = now;
};
// Add a floor to the bottom of the screen
for (var i = 0; i < 21; i++) {
	var floor = LK.getAsset('floor', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: i * 100,
		y: 2732 - 30
	});
	game.addChild(floor);
	floors.push(floor);
}
// Add continuous floor on the left margin of the screen
for (var j = 0; j < 28; j++) {
	var leftFloor = LK.getAsset('floor', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: j * 100
	});
	game.addChild(leftFloor);
	floors.push(leftFloor);
}
// Add continuous floor on the right margin of the screen
for (var k = 0; k < 28; k++) {
	var rightFloor = LK.getAsset('floor', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 - 50,
		y: k * 100
	});
	game.addChild(rightFloor);
	floors.push(rightFloor);
}

===================================================================
--- original.js
+++ change.js