/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// DuneBuggy class to represent the player's vehicle
var DuneBuggy = Container.expand(function () {
	var self = Container.call(this);
	var buggyGraphics = self.attachAsset('duneBuggy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		// Update logic for the buggy, if needed
	};
});
// Obstacle class to represent obstacles in the game
var GasCan = Container.expand(function () {
	var self = Container.call(this);
	var gascanGraphics = self.attachAsset('gascan', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -3;
	self.update = function () {
		self.y += self.speed;
	};
});
// Tire class to represent tires that can be picked up
var Tire = Container.expand(function () {
	var self = Container.call(this);
	var tireGraphics = self.attachAsset('tire', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -3;
	self.update = function () {
		self.y += self.speed;
	};
});
// Track class to represent the scrolling track
var Track = Container.expand(function () {
	var self = Container.call(this);
	var trackGraphics = self.attachAsset('track', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -13;
	self.update = function () {
		self.y -= self.speed;
		if (self.y >= 2732) {
			self.y = -4200;
		}
	};
});

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

/**** 
* Game Code
****/ 
// Initialize the track
var track1 = game.addChild(new Track());
track1.x = 1500 / 2;
track1.y = 2732 / 2;
var track2 = game.addChild(new Track());
track2.x = 1500 / 2;
track2.y = 15000 / 2;
var duneBuggy = game.addChild(new DuneBuggy());
duneBuggy.x = 2048 / 2;
duneBuggy.y = 2732 - 200;
var gasCans = [];
for (var i = gasCans.length - 1; i >= 0; i--) {
	gasCans[i].update();
	if (gasCans[i].y < -50) {
		gasCans[i].destroy();
		gasCans.splice(i, 1);
		var tires = [];
		for (var j = tires.length - 1; j >= 0; j--) {
			tires[j].update();
			if (tires[j].y < -50) {
				tires[j].destroy();
				tires.splice(j, 1);
				var score = 0;
				var scoreTxt = new Text2('Score: 0', {
					size: 100,
					fill: "#ffffff"
				});
				scoreTxt.anchor.set(0.5, 0);
				LK.gui.top.addChild(scoreTxt);
				game.update = function () {
					// Update obstacles and track
					track1.update();
					track2.update();
				};
				if (duneBuggy.intersects(gasCans[i])) {
					LK.effects.flashScreen(0xff0000, 1000);
					LK.showGameOver();
				}
			}
			// Update supplies
		}
		if (duneBuggy.intersects(tires[j])) {
			score += 10;
			scoreTxt.setText('Score: ' + score);
			tires[j].destroy();
			tires.splice(j, 1);
		}
	}
	// Spawn new obstacles and tires
	if (LK.ticks % 60 == 0) {
		var newGasCan = new GasCan();
		newGasCan.x = Math.random() * 2048;
		newGasCan.y = 0;
		gasCans.push(newGasCan);
		game.addChild(newGasCan);
	}
	if (LK.ticks % 120 == 0) {
		var newTire = new Tire();
		newTire.x = Math.random() * 2048;
		newTire.y = 0;
		tires.push(newTire);
		game.addChild(newTire);
	}
}
;
game.down = function (x, y, obj) {
	duneBuggy.x = x;
};
game.move = function (x, y, obj) {
	if (x > 1024 / 2 && x < 3 * 1024 / 2) {
		duneBuggy.x = x;
	}
};
game.up = function (x, y, obj) {
	// No action needed on up event
};

===================================================================
--- original.js
+++ change.js
@@ -47,9 +47,9 @@
 	});
 	self.speed = -13;
 	self.update = function () {
 		self.y -= self.speed;
-		if (self.y >= 4200) {
+		if (self.y >= 2732) {
 			self.y = -4200;
 		}
 	};
 });
@@ -65,13 +65,13 @@
 * Game Code
 ****/ 
 // Initialize the track
 var track1 = game.addChild(new Track());
-track1.x = 2048 / 2;
+track1.x = 1500 / 2;
 track1.y = 2732 / 2;
 var track2 = game.addChild(new Track());
-track2.x = 2048 / 2;
-track2.y = 4096 / 2;
+track2.x = 1500 / 2;
+track2.y = 15000 / 2;
 var duneBuggy = game.addChild(new DuneBuggy());
 duneBuggy.x = 2048 / 2;
 duneBuggy.y = 2732 - 200;
 var gasCans = [];