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

/**** 
* Classes
****/ 
var Bike = Container.expand(function () {
	var self = Container.call(this);
	var bikeBody = self.attachAsset('bike', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var frontWheel = self.attachAsset('wheel', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 25,
		y: 15
	});
	var backWheel = self.attachAsset('wheel', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: -25,
		y: 15
	});
	self.velocityY = 0;
	self.gravity = 0.8;
	self.jumpPower = -18;
	self.isGrounded = false;
	self.groundY = 0;
	self.jump = function (chargeMultiplier) {
		if (self.isGrounded) {
			var jumpStrength = self.jumpPower * (1 + chargeMultiplier);
			self.velocityY = jumpStrength;
			self.isGrounded = false;
			LK.getSound('jump').play();
		}
	};
	self.update = function () {
		// Apply gravity
		self.velocityY += self.gravity;
		self.y += self.velocityY;
		// Ground collision
		if (self.y >= self.groundY) {
			self.y = self.groundY;
			self.velocityY = 0;
			self.isGrounded = true;
		}
		// Animate wheels
		frontWheel.rotation += 0.3;
		backWheel.rotation += 0.3;
		// Bike tilt based on velocity
		bikeBody.rotation = self.velocityY * 0.02;
	};
	return self;
});
var Cloud = Container.expand(function () {
	var self = Container.call(this);
	var cloudGraphics = self.attachAsset('cloud', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -2; // Slow parallax movement
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});
var GroundSegment = Container.expand(function () {
	var self = Container.call(this);
	var groundGraphics = self.attachAsset('ground', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -18;
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});
var Mountain = Container.expand(function () {
	var self = Container.call(this);
	var mountainGraphics = self.attachAsset('mountain', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.speed = -4; // Medium parallax movement
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.speed = -18;
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});
var Ramp = Container.expand(function () {
	var self = Container.call(this);
	var rampGraphics = self.attachAsset('ramp', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.speed = -18;
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var bike;
var obstacles = [];
var ramps = [];
var groundSegments = [];
var clouds = [];
var mountains = [];
var skyBackground;
var gameSpeed = 18;
var distanceScore = 0;
var isGameRunning = true;
var groundLevel = 2400;
var lastObstacleSpawn = 0;
var spawnDistance = 300;
var currentLevel = 1;
var levelDistance = 500; // Distance between level changes
var levelConfigs = [
// Level 1: Easy - Single obstacles
{
	obstacleChance: 0.6,
	rampChance: 0.4,
	minSpacing: 250,
	maxSpacing: 400,
	patterns: ['single']
},
// Level 2: Medium - Paired obstacles
{
	obstacleChance: 0.7,
	rampChance: 0.3,
	minSpacing: 200,
	maxSpacing: 350,
	patterns: ['single', 'double']
},
// Level 3: Hard - Triple obstacles and gaps
{
	obstacleChance: 0.75,
	rampChance: 0.25,
	minSpacing: 180,
	maxSpacing: 300,
	patterns: ['single', 'double', 'triple']
},
// Level 4: Expert - Mixed patterns with tight spacing
{
	obstacleChance: 0.8,
	rampChance: 0.2,
	minSpacing: 150,
	maxSpacing: 250,
	patterns: ['single', 'double', 'triple', 'staggered']
},
// Level 5: Master - All patterns with minimal spacing
{
	obstacleChance: 0.85,
	rampChance: 0.15,
	minSpacing: 120,
	maxSpacing: 200,
	patterns: ['single', 'double', 'triple', 'staggered', 'wall']
}];
var isCharging = false;
var chargeStartTime = 0;
var currentCharge = 0;
var maxCharge = 100;
var chargeRate = 2;
// Create score display
var scoreTxt = new Text2('Distance: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create jump meter background
var meterBg = LK.getAsset('obstacle', {
	anchorX: 0,
	anchorY: 0,
	scaleX: 4,
	scaleY: 0.5,
	tint: 0x333333
});
meterBg.x = 100;
meterBg.y = 150;
LK.gui.topLeft.addChild(meterBg);
// Create jump meter fill
var meterFill = LK.getAsset('obstacle', {
	anchorX: 0,
	anchorY: 0,
	scaleX: 0,
	scaleY: 0.5,
	tint: 0x00ff00
});
meterFill.x = 100;
meterFill.y = 150;
LK.gui.topLeft.addChild(meterFill);
// Create jump meter label
var meterLabel = new Text2('JUMP POWER', {
	size: 40,
	fill: 0xFFFFFF
});
meterLabel.anchor.set(0, 0);
meterLabel.x = 100;
meterLabel.y = 100;
LK.gui.topLeft.addChild(meterLabel);
// Create level indicator
var levelTxt = new Text2('LEVEL 1', {
	size: 60,
	fill: 0xFFFF00
});
levelTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(levelTxt);
// Create sky background
skyBackground = game.addChild(LK.getAsset('sky', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
}));
// Create mountains
function createMountains() {
	for (var i = 0; i < 8; i++) {
		var mountain = new Mountain();
		mountain.x = i * 300 + Math.random() * 100;
		mountain.y = groundLevel - 100;
		mountain.scaleY = 0.8 + Math.random() * 0.4;
		mountains.push(mountain);
		game.addChild(mountain);
	}
}
// Create clouds
function createClouds() {
	for (var i = 0; i < 6; i++) {
		var cloud = new Cloud();
		cloud.x = i * 400 + Math.random() * 200;
		cloud.y = 300 + Math.random() * 400;
		cloud.scaleX = 0.7 + Math.random() * 0.6;
		cloud.scaleY = 0.7 + Math.random() * 0.6;
		cloud.alpha = 0.8;
		clouds.push(cloud);
		game.addChild(cloud);
	}
}
createMountains();
createClouds();
// Create bike
bike = game.addChild(new Bike());
bike.x = 400;
bike.y = groundLevel;
bike.groundY = groundLevel;
// Initialize ground segments
function createGroundSegments() {
	for (var i = 0; i < 15; i++) {
		var segment = new GroundSegment();
		segment.x = i * 200;
		segment.y = groundLevel + 40;
		groundSegments.push(segment);
		game.addChild(segment);
	}
}
createGroundSegments();
// Spawn obstacle patterns based on current level
function spawnObstaclePattern(pattern) {
	switch (pattern) {
		case 'single':
			spawnSingleObstacle();
			break;
		case 'double':
			spawnDoubleObstacles();
			break;
		case 'triple':
			spawnTripleObstacles();
			break;
		case 'staggered':
			spawnStaggeredObstacles();
			break;
		case 'wall':
			spawnWallObstacles();
			break;
		default:
			spawnSingleObstacle();
	}
}
// Single obstacle
function spawnSingleObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = 2200;
	obstacle.y = groundLevel;
	obstacle.speed = -gameSpeed;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
// Double obstacles - side by side gap
function spawnDoubleObstacles() {
	var obstacle1 = new Obstacle();
	obstacle1.x = 2200;
	obstacle1.y = groundLevel;
	obstacle1.speed = -gameSpeed;
	obstacles.push(obstacle1);
	game.addChild(obstacle1);
	var obstacle2 = new Obstacle();
	obstacle2.x = 2280;
	obstacle2.y = groundLevel;
	obstacle2.speed = -gameSpeed;
	obstacles.push(obstacle2);
	game.addChild(obstacle2);
}
// Triple obstacles - requires precise jumping
function spawnTripleObstacles() {
	for (var i = 0; i < 3; i++) {
		var obstacle = new Obstacle();
		obstacle.x = 2200 + i * 70;
		obstacle.y = groundLevel;
		obstacle.speed = -gameSpeed;
		obstacles.push(obstacle);
		game.addChild(obstacle);
	}
}
// Staggered obstacles - different heights
function spawnStaggeredObstacles() {
	var obstacle1 = new Obstacle();
	obstacle1.x = 2200;
	obstacle1.y = groundLevel;
	obstacle1.speed = -gameSpeed;
	obstacles.push(obstacle1);
	game.addChild(obstacle1);
	var obstacle2 = new Obstacle();
	obstacle2.x = 2300;
	obstacle2.y = groundLevel - 60;
	obstacle2.speed = -gameSpeed;
	obstacles.push(obstacle2);
	game.addChild(obstacle2);
}
// Wall pattern - high obstacle requiring max jump
function spawnWallObstacles() {
	var obstacle1 = new Obstacle();
	obstacle1.x = 2200;
	obstacle1.y = groundLevel;
	obstacle1.speed = -gameSpeed;
	obstacles.push(obstacle1);
	game.addChild(obstacle1);
	var obstacle2 = new Obstacle();
	obstacle2.x = 2200;
	obstacle2.y = groundLevel - 60;
	obstacle2.speed = -gameSpeed;
	obstacles.push(obstacle2);
	game.addChild(obstacle2);
}
// Legacy single obstacle function for compatibility
function spawnObstacle() {
	spawnSingleObstacle();
}
// Spawn ramp
function spawnRamp() {
	var ramp = new Ramp();
	ramp.x = 2200;
	ramp.y = groundLevel;
	ramp.speed = -gameSpeed;
	ramps.push(ramp);
	game.addChild(ramp);
}
// Game input - start charging
game.down = function (x, y, obj) {
	if (isGameRunning && bike.isGrounded) {
		isCharging = true;
		chargeStartTime = LK.ticks;
		currentCharge = 0;
	}
};
// Game input - release jump
game.up = function (x, y, obj) {
	if (isGameRunning && isCharging) {
		var chargeMultiplier = currentCharge / maxCharge;
		bike.jump(chargeMultiplier);
		isCharging = false;
		currentCharge = 0;
	}
};
// Main game loop
game.update = function () {
	if (!isGameRunning) return;
	// Update jump charge system
	if (isCharging && bike.isGrounded) {
		currentCharge += chargeRate;
		if (currentCharge > maxCharge) {
			currentCharge = maxCharge;
		}
	} else if (!bike.isGrounded) {
		isCharging = false;
		currentCharge = 0;
	}
	// Update jump meter UI
	var fillPercent = currentCharge / maxCharge;
	meterFill.scaleX = 4 * fillPercent;
	// Change color based on charge level
	if (fillPercent < 0.3) {
		meterFill.tint = 0xff0000; // Red
	} else if (fillPercent < 0.7) {
		meterFill.tint = 0xffff00; // Yellow
	} else {
		meterFill.tint = 0x00ff00; // Green
	}
	// Update distance score
	distanceScore += 1;
	LK.setScore(Math.floor(distanceScore / 10));
	scoreTxt.setText('Distance: ' + Math.floor(distanceScore / 10));
	// Update level indicator
	levelTxt.setText('LEVEL ' + currentLevel);
	// Increase game speed gradually
	if (LK.ticks % 300 === 0) {
		gameSpeed += 1.2;
	}
	// Update ground segments
	for (var i = groundSegments.length - 1; i >= 0; i--) {
		var segment = groundSegments[i];
		segment.speed = -gameSpeed;
		if (segment.x < -200) {
			segment.x = (groundSegments.length - 1) * 200;
		}
	}
	// Update mountains with parallax effect
	for (var i = mountains.length - 1; i >= 0; i--) {
		var mountain = mountains[i];
		mountain.speed = -gameSpeed * 0.3; // Slower parallax
		if (mountain.x < -400) {
			mountain.x = mountains.length * 300 + Math.random() * 100;
			mountain.scaleY = 0.8 + Math.random() * 0.4;
		}
	}
	// Update clouds with parallax effect
	for (var i = clouds.length - 1; i >= 0; i--) {
		var cloud = clouds[i];
		cloud.speed = -gameSpeed * 0.15; // Very slow parallax
		if (cloud.x < -300) {
			cloud.x = clouds.length * 400 + Math.random() * 200;
			cloud.y = 300 + Math.random() * 400;
			cloud.scaleX = 0.7 + Math.random() * 0.6;
			cloud.scaleY = 0.7 + Math.random() * 0.6;
		}
	}
	// Update current level based on distance
	var newLevel = Math.min(5, Math.floor(distanceScore / levelDistance) + 1);
	if (newLevel !== currentLevel) {
		currentLevel = newLevel;
		// Flash screen to indicate level change
		LK.effects.flashScreen(0x00ff00, 500);
	}
	// Get current level configuration
	var config = levelConfigs[currentLevel - 1];
	// Spawn obstacles and ramps based on current level
	if (distanceScore - lastObstacleSpawn > spawnDistance) {
		var randomValue = Math.random();
		if (randomValue < config.obstacleChance) {
			// Choose random pattern from current level patterns
			var patterns = config.patterns;
			var randomPattern = patterns[Math.floor(Math.random() * patterns.length)];
			spawnObstaclePattern(randomPattern);
		} else {
			spawnRamp();
		}
		lastObstacleSpawn = distanceScore;
		spawnDistance = config.minSpacing + Math.random() * (config.maxSpacing - config.minSpacing);
	}
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.speed = -gameSpeed;
		// Remove off-screen obstacles
		if (obstacle.x < -100) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Collision detection
		if (bike.intersects(obstacle)) {
			// Game over
			isGameRunning = false;
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
	}
	// Update ramps
	for (var i = ramps.length - 1; i >= 0; i--) {
		var ramp = ramps[i];
		ramp.speed = -gameSpeed;
		// Remove off-screen ramps
		if (ramp.x < -100) {
			ramp.destroy();
			ramps.splice(i, 1);
			continue;
		}
		// Ramp boost effect
		if (bike.intersects(ramp) && bike.isGrounded) {
			bike.velocityY = bike.jumpPower * 1.2;
			bike.isGrounded = false;
		}
	}
	// Check if bike fell off the track
	if (bike.y > groundLevel + 200) {
		isGameRunning = false;
		LK.getSound('crash').play();
		LK.effects.flashScreen(0xff0000, 1000);
		LK.showGameOver();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -5,25 +5,8 @@
 
 /**** 
 * Classes
 ****/ 
-var Background = Container.expand(function () {
-	var self = Container.call(this);
-	var mountainLayer = self.attachAsset('mountains', {
-		anchorX: 0,
-		anchorY: 1
-	});
-	mountainLayer.y = 2732;
-	self.speed = -2; // Slower parallax speed
-	self.update = function () {
-		self.x += self.speed;
-		// Reset position for seamless scrolling
-		if (self.x <= -2048) {
-			self.x = 0;
-		}
-	};
-	return self;
-});
 var Bike = Container.expand(function () {
 	var self = Container.call(this);
 	var bikeBody = self.attachAsset('bike', {
 		anchorX: 0.5,
@@ -71,21 +54,17 @@
 		bikeBody.rotation = self.velocityY * 0.02;
 	};
 	return self;
 });
-var CloudLayer = Container.expand(function () {
+var Cloud = Container.expand(function () {
 	var self = Container.call(this);
-	var cloudGraphics = self.attachAsset('clouds', {
-		anchorX: 0,
+	var cloudGraphics = self.attachAsset('cloud', {
+		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	self.speed = -1; // Very slow parallax speed
+	self.speed = -2; // Slow parallax movement
 	self.update = function () {
 		self.x += self.speed;
-		// Reset position for seamless scrolling
-		if (self.x <= -400) {
-			self.x = 2048;
-		}
 	};
 	return self;
 });
 var GroundSegment = Container.expand(function () {
@@ -99,8 +78,20 @@
 		self.x += self.speed;
 	};
 	return self;
 });
+var Mountain = Container.expand(function () {
+	var self = Container.call(this);
+	var mountainGraphics = self.attachAsset('mountain', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.speed = -4; // Medium parallax movement
+	self.update = function () {
+		self.x += self.speed;
+	};
+	return self;
+});
 var Obstacle = Container.expand(function () {
 	var self = Container.call(this);
 	var obstacleGraphics = self.attachAsset('obstacle', {
 		anchorX: 0.5,
@@ -138,10 +129,11 @@
 var bike;
 var obstacles = [];
 var ramps = [];
 var groundSegments = [];
-var backgrounds = [];
 var clouds = [];
+var mountains = [];
+var skyBackground;
 var gameSpeed = 18;
 var distanceScore = 0;
 var isGameRunning = true;
 var groundLevel = 2400;
@@ -239,8 +231,41 @@
 	fill: 0xFFFF00
 });
 levelTxt.anchor.set(1, 0);
 LK.gui.topRight.addChild(levelTxt);
+// Create sky background
+skyBackground = game.addChild(LK.getAsset('sky', {
+	anchorX: 0,
+	anchorY: 0,
+	x: 0,
+	y: 0
+}));
+// Create mountains
+function createMountains() {
+	for (var i = 0; i < 8; i++) {
+		var mountain = new Mountain();
+		mountain.x = i * 300 + Math.random() * 100;
+		mountain.y = groundLevel - 100;
+		mountain.scaleY = 0.8 + Math.random() * 0.4;
+		mountains.push(mountain);
+		game.addChild(mountain);
+	}
+}
+// Create clouds
+function createClouds() {
+	for (var i = 0; i < 6; i++) {
+		var cloud = new Cloud();
+		cloud.x = i * 400 + Math.random() * 200;
+		cloud.y = 300 + Math.random() * 400;
+		cloud.scaleX = 0.7 + Math.random() * 0.6;
+		cloud.scaleY = 0.7 + Math.random() * 0.6;
+		cloud.alpha = 0.8;
+		clouds.push(cloud);
+		game.addChild(cloud);
+	}
+}
+createMountains();
+createClouds();
 // Create bike
 bike = game.addChild(new Bike());
 bike.x = 400;
 bike.y = groundLevel;
@@ -255,29 +280,8 @@
 		game.addChild(segment);
 	}
 }
 createGroundSegments();
-// Initialize background layers
-function createBackgrounds() {
-	for (var i = 0; i < 3; i++) {
-		var bg = new Background();
-		bg.x = i * 2048;
-		backgrounds.push(bg);
-		game.addChild(bg);
-	}
-}
-createBackgrounds();
-// Initialize cloud layers
-function createClouds() {
-	for (var i = 0; i < 8; i++) {
-		var cloud = new CloudLayer();
-		cloud.x = i * 300 + Math.random() * 200;
-		cloud.y = 300 + Math.random() * 400;
-		clouds.push(cloud);
-		game.addChild(cloud);
-	}
-}
-createClouds();
 // Spawn obstacle patterns based on current level
 function spawnObstaclePattern(pattern) {
 	switch (pattern) {
 		case 'single':
@@ -427,26 +431,36 @@
 	// Increase game speed gradually
 	if (LK.ticks % 300 === 0) {
 		gameSpeed += 1.2;
 	}
-	// Update background layers
-	for (var i = 0; i < backgrounds.length; i++) {
-		var bg = backgrounds[i];
-		bg.speed = -gameSpeed * 0.1; // Slow parallax effect
-	}
-	// Update cloud layers
-	for (var i = 0; i < clouds.length; i++) {
-		var cloud = clouds[i];
-		cloud.speed = -gameSpeed * 0.05; // Very slow parallax effect
-	}
 	// Update ground segments
 	for (var i = groundSegments.length - 1; i >= 0; i--) {
 		var segment = groundSegments[i];
 		segment.speed = -gameSpeed;
 		if (segment.x < -200) {
 			segment.x = (groundSegments.length - 1) * 200;
 		}
 	}
+	// Update mountains with parallax effect
+	for (var i = mountains.length - 1; i >= 0; i--) {
+		var mountain = mountains[i];
+		mountain.speed = -gameSpeed * 0.3; // Slower parallax
+		if (mountain.x < -400) {
+			mountain.x = mountains.length * 300 + Math.random() * 100;
+			mountain.scaleY = 0.8 + Math.random() * 0.4;
+		}
+	}
+	// Update clouds with parallax effect
+	for (var i = clouds.length - 1; i >= 0; i--) {
+		var cloud = clouds[i];
+		cloud.speed = -gameSpeed * 0.15; // Very slow parallax
+		if (cloud.x < -300) {
+			cloud.x = clouds.length * 400 + Math.random() * 200;
+			cloud.y = 300 + Math.random() * 400;
+			cloud.scaleX = 0.7 + Math.random() * 0.6;
+			cloud.scaleY = 0.7 + Math.random() * 0.6;
+		}
+	}
 	// Update current level based on distance
 	var newLevel = Math.min(5, Math.floor(distanceScore / levelDistance) + 1);
 	if (newLevel !== currentLevel) {
 		currentLevel = newLevel;