/**** 
* 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 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 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 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);
// Add sky background
var skyBackground = game.addChild(LK.getAsset('sky', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 1366 / 2
}));
// 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 current level based on distance
	var newLevel = Math.min(5, Math.floor(distanceScore / levelDistance) + 1);
	if (newLevel !== currentLevel) {
		currentLevel = newLevel;
	}
	// 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.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.showGameOver();
	}
};
// Start background music
LK.playMusic('1crossbikecountryracetheme');

===================================================================
--- original.js
+++ change.js
@@ -390,10 +390,8 @@
 	// 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
@@ -424,9 +422,8 @@
 		if (bike.intersects(obstacle)) {
 			// Game over
 			isGameRunning = false;
 			LK.getSound('crash').play();
-			LK.effects.flashScreen(0xff0000, 1000);
 			LK.showGameOver();
 			return;
 		}
 	}
@@ -449,9 +446,8 @@
 	// 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();
 	}
 };
 // Start background music