/**** 
* Classes
****/ 
// Fish class: represents a single fish swimming in the ocean
var Fish = Container.expand(function () {
	var self = Container.call(this);
	// Create a simple ellipse as the fish
	var fishAsset = self.attachAsset('fish', {
		width: 120,
		height: 60,
		color: 0xffcc66,
		shape: 'ellipse',
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Randomize initial position and speed
	self.x = Math.random() * 2048;
	self.y = 400 + Math.random() * 1800;
	self.speed = 2 + Math.random() * 3;
	// Track lastX for edge detection
	self.lastX = self.x;
	// Fish swims to the right, loops back to left when off screen
	self.update = function () {
		self.lastX = self.x;
		self.x += self.speed;
		if (self.lastX <= 2048 && self.x > 2048) {
			self.x = -100;
			self.y = 400 + Math.random() * 1800;
			self.speed = 2 + Math.random() * 3;
		}
	};
	return self;
});
var Ocean = Container.expand(function () {
	var self = Container.call(this);
	// Create a large blue rectangle as the ocean background
	var oceanAsset = self.attachAsset('ocean', {
		width: 2048,
		height: 2732,
		color: 0x3399ff,
		shape: 'box',
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	return self;
});
// Shark class: represents the main character (shark) swimming in the ocean
var Shark = Container.expand(function () {
	var self = Container.call(this);
	// Attach a shark asset (box for now, can be replaced with a shark image asset)
	var sharkAsset = self.attachAsset('shark', {
		width: 220,
		height: 100,
		color: 0x444444,
		shape: 'box',
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Start in the center of the ocean
	self.x = 1024;
	self.y = 1366;
	// Track lastX and lastY for possible future movement logic
	self.lastX = self.x;
	self.lastY = self.y;
	// Shark floats gently up and down (idle animation)
	self._swimTick = 0;
	self.update = function () {
		self.lastX = self.x;
		self.lastY = self.y;
		self._swimTick++;
		// Gentle up and down motion
		self.y = 1366 + Math.sin(self._swimTick / 60) * 40;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Add ocean background
var ocean = new Ocean();
game.addChild(ocean);
// Add several fish swimming in the ocean
var fishArray = [];
for (var i = 0; i < 7; i++) {
	var fish = new Fish();
	fishArray.push(fish);
	game.addChild(fish);
}
// Add the shark character to the game
var shark = new Shark();
game.addChild(shark);
// Update fish and shark positions every frame
game.update = function () {
	for (var i = 0; i < fishArray.length; i++) {
		fishArray[i].update();
	}
	shark.update();
};

===================================================================
--- original.js
+++ change.js
@@ -45,8 +45,37 @@
 		y: 0
 	});
 	return self;
 });
+// Shark class: represents the main character (shark) swimming in the ocean
+var Shark = Container.expand(function () {
+	var self = Container.call(this);
+	// Attach a shark asset (box for now, can be replaced with a shark image asset)
+	var sharkAsset = self.attachAsset('shark', {
+		width: 220,
+		height: 100,
+		color: 0x444444,
+		shape: 'box',
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Start in the center of the ocean
+	self.x = 1024;
+	self.y = 1366;
+	// Track lastX and lastY for possible future movement logic
+	self.lastX = self.x;
+	self.lastY = self.y;
+	// Shark floats gently up and down (idle animation)
+	self._swimTick = 0;
+	self.update = function () {
+		self.lastX = self.x;
+		self.lastY = self.y;
+		self._swimTick++;
+		// Gentle up and down motion
+		self.y = 1366 + Math.sin(self._swimTick / 60) * 40;
+	};
+	return self;
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -66,10 +95,14 @@
 	var fish = new Fish();
 	fishArray.push(fish);
 	game.addChild(fish);
 }
-// Update fish positions every frame
+// Add the shark character to the game
+var shark = new Shark();
+game.addChild(shark);
+// Update fish and shark positions every frame
 game.update = function () {
 	for (var i = 0; i < fishArray.length; i++) {
 		fishArray[i].update();
 	}
+	shark.update();
 };
\ No newline at end of file