/**** 
* Classes
****/ 
// Bird class to be created when the dolphin jumps
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vx = 5; // Horizontal velocity
	self.update = function () {
		// Make the bird move horizontally
		self.x += self.vx;
		if (self.x > 2048 || self.x < 0) {
			self.vx *= -1; // Change direction when reaching the screen borders
		}
	};
});
// Cloud class to be created when the dolphin jumps
var Cloud = Container.expand(function () {
	var self = Container.call(this);
	var cloudGraphics = self.attachAsset('cloud', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.alpha = 0.5; // Make the cloud transparent
	self.update = function () {
		// Make the cloud disappear after a while
		self.alpha -= 0.01;
		if (self.alpha <= 0) {
			self.destroy();
		}
	};
});
// Dolphin class to be thrown
var Dolphin = Container.expand(function () {
	var self = Container.call(this);
	var dolphinGraphics = self.attachAsset('dolphin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vy = 0; // Vertical velocity
	self.update = function () {
		self.y += self.vy;
		self.vy += 1; // Gravity effect
		if (self.y > 2732) {
			// Reset position if it falls below the screen
			self.y = 2732;
			self.vy = 0;
		}
		// Make the dolphin spin as it jumps
		self.rotation += 0.1;
	};
});
// Mar class to be placed on the ground
var Mar = Container.expand(function () {
	var self = Container.call(this);
	var marGraphics = self.attachAsset('Mar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// The mar stays still on the ground
	};
});
// NormalCloud class to be created in the background
var NormalCloud = Container.expand(function () {
	var self = Container.call(this);
	var normalCloudGraphics = self.attachAsset('normalcloud', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.alpha = 0.5; // Make the normal cloud a little transparent
	self.vx = -5; // Horizontal velocity
	self.update = function () {
		// Make the normal cloud move horizontally
		self.x += self.vx;
		if (self.x < 0) {
			self.x = 2048; // Reset position when reaching the left border
		}
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Whale class to support the dolphin
var Whale = Container.expand(function () {
	var self = Container.call(this);
	var whaleGraphics = self.attachAsset('whale', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vy = 0; // Vertical velocity
	self.update = function () {
		// Make the whale follow the dolphin horizontally
		self.x = dolphin.x;
		// Apply gravity to the whale
		self.y += self.vy;
		self.vy += 1; // Gravity effect
		if (self.y > 2500) {
			// Reset position if it falls below the initial position
			self.y = 2500;
			self.vy = 0;
		}
	};
	self.flatten = function () {
		// Play a toy sound
		LK.getSound('toy').play();
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Sky blue background
});

/**** 
* Game Code
****/ 
// Create NormalCloud instances and distribute them across the sky
var normalClouds = [];
for (var i = 0; i < 5; i++) {
	var normalCloud = game.addChild(new NormalCloud());
	normalCloud.x = Math.random() * 2048; // Random horizontal position
	normalCloud.y = Math.random() * 1366; // Random vertical position (only in the upper half of the screen)
	normalClouds.push(normalCloud);
}
var whale = game.addChild(new Whale());
whale.x = 1024; // Center horizontally
whale.y = 2500; // Near the bottom
var dolphin = game.addChild(new Dolphin());
dolphin.x = whale.x;
dolphin.y = whale.y - 100; // Position above the whale
// Create 10 Mar instances and distribute them across the ground
var mars = [];
for (var i = 0; i < 10; i++) {
	var mar = game.addChild(new Mar());
	mar.x = i * 204.8; // Distribute horizontally
	mar.y = 2732; // At the bottom
	mar.scaleX = 10; // Make them smaller
	mar.scaleY = 10; // Make them smaller
	mars.push(mar);
}
// Event listener for throwing the dolphin
game.down = function (x, y, obj) {
	if (dolphin.y >= whale.y - 100 && Math.abs(dolphin.x - whale.x) < whale.width / 2) {
		dolphin.vy = -50; // Increase upward velocity if jumping on the whale
		whale.vy = -20; // Make the whale jump a little
		LK.getSound('toy').play(); // Play a toy sound
	} else {
		dolphin.vy = -20; // Initial upward velocity
		// Create a cloud at the dolphin's position
		var cloud = game.addChild(new Cloud());
		cloud.x = dolphin.x;
		cloud.y = dolphin.y;
	}
};
// Create a variable to store the number of birds to be created
var numBirds = Math.floor(Math.random() * 2) + 1;
// Create Bird instances and distribute them a little more to the middle
var birds = [];
for (var i = 0; i < numBirds; i++) {
	var bird = game.addChild(new Bird());
	bird.x = Math.random() * (2048 - 500) + 500; // Random position from the left to the right, a little more to the middle
	bird.y = Math.random() * (2732 - 500 - 500) + 500; // Random position from the top to the bottom, a little more to the middle but not underwater
	birds.push(bird);
}
// Play background music
LK.playMusic('Jumping_song');
// Update game state
game.update = function () {
	dolphin.update();
	whale.update();
	birds.forEach(function (bird) {
		bird.update();
		if (dolphin.intersects(bird)) {
			normalClouds.forEach(function (normalCloud) {
				normalCloud.update();
			});
			LK.showGameOver("Oh no! You've hit a bird. Try again!");
		}
	});
	if (dolphin.y <= 0) {
		// Dolphin reached the top
		LK.showYouWin("Congratulations! You've reached the top! Play again for a new difficulty");
	}
};

===================================================================
--- original.js
+++ change.js
@@ -70,8 +70,9 @@
 	var normalCloudGraphics = self.attachAsset('normalcloud', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
+	self.alpha = 0.5; // Make the normal cloud a little transparent
 	self.vx = -5; // Horizontal velocity
 	self.update = function () {
 		// Make the normal cloud move horizontally
 		self.x += self.vx;