/**** 
* Classes
****/ 
//<Write imports for supported plugins here>
// Character class with gravity and jump functionality
var Character = Container.expand(function () {
	var self = Container.call(this);
	var characterGraphics = self.attachAsset('character', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityY = 0;
	self.gravity = 0.5;
	self.jumpStrength = -15;
	self.update = function () {
		self.velocityY += self.gravity;
		self.y += self.velocityY;
		// Prevent character from falling through the ground
		if (self.y > 2732 - 100) {
			self.y = 2732 - 100;
			self.velocityY = 0;
		}
	};
	self.jump = function () {
		if (self.y >= 2732 - 100) {
			// Allow jump only if on the ground
			self.velocityY = self.jumpStrength;
		}
	};
});

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

/**** 
* Game Code
****/ 
// Initialize assets used in this game.
// Create and position the character in the middle of the screen
var character = game.addChild(new Character());
character.x = 2048 / 2;
character.y = 2732 / 2;
// Create and position the sky at the top of the screen
var sky = LK.getAsset('sky', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 5
});
game.addChild(sky);
// Create and position the ground at the bottom of the screen
var ground = LK.getAsset('ground', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 - 5
});
game.addChild(ground);
// Create and position the tube off the right side of the screen
var tube = LK.getAsset('tube', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 + 50,
	y: 2732 - 150
});
game.addChild(tube);
// Handle touch events to make the character jump
game.down = function (x, y, obj) {
	character.jump();
};
// Update game state every tick
game.update = function () {
	character.update();
};

===================================================================
--- original.js
+++ change.js
@@ -9,10 +9,10 @@
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.velocityY = 0;
-	self.gravity = 0.3;
-	self.jumpStrength = -20;
+	self.gravity = 0.5;
+	self.jumpStrength = -15;
 	self.update = function () {
 		self.velocityY += self.gravity;
 		self.y += self.velocityY;
 		// Prevent character from falling through the ground
@@ -42,9 +42,9 @@
 // Initialize assets used in this game.
 // Create and position the character in the middle of the screen
 var character = game.addChild(new Character());
 character.x = 2048 / 2;
-character.y = 2732 - 100;
+character.y = 2732 / 2;
 // Create and position the sky at the top of the screen
 var sky = LK.getAsset('sky', {
 	anchorX: 0.5,
 	anchorY: 0.5,