/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0,
	currentLevel: 1
});

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collected = false;
	self.update = function () {
		// Make the coin bounce slightly
		self.y += Math.sin(LK.ticks / 10) * 0.5;
	};
	self.collect = function () {
		if (!self.collected) {
			self.collected = true;
			// Animation for collection
			tween(self, {
				alpha: 0,
				scaleX: 2,
				scaleY: 2
			}, {
				duration: 300,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
			LK.getSound('collect').play();
			return true;
		}
		return false;
	};
	return self;
});
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var platformGraphics = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = platformGraphics.width;
	self.height = platformGraphics.height;
	self.moving = false;
	self.movingLeft = false;
	self.moveSpeed = 0;
	self.leftBound = 0;
	self.rightBound = 0;
	self.setMoving = function (isMoving, speed, leftBound, rightBound) {
		self.moving = isMoving;
		self.moveSpeed = speed || 2;
		self.leftBound = leftBound || 0;
		self.rightBound = rightBound || 2048;
		self.movingLeft = false;
	};
	self.update = function () {
		if (self.moving) {
			if (self.movingLeft) {
				self.x -= self.moveSpeed;
				if (self.x <= self.leftBound) {
					self.x = self.leftBound;
					self.movingLeft = false;
				}
			} else {
				self.x += self.moveSpeed;
				if (self.x >= self.rightBound) {
					self.x = self.rightBound;
					self.movingLeft = true;
				}
			}
		}
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocity = {
		x: 0,
		y: 0
	};
	self.isJumping = false;
	self.isOnGround = false;
	self.moveDirection = 0; // -1 for left, 0 for none, 1 for right
	self.speed = 8;
	self.jumpForce = -20;
	self.gravity = 1;
	self.jump = function () {
		if (self.isOnGround) {
			self.velocity.y = self.jumpForce;
			self.isJumping = true;
			self.isOnGround = false;
			LK.getSound('jump').play();
		}
	};
	self.update = function () {
		// Apply horizontal movement
		self.velocity.x = self.moveDirection * self.speed;
		// Apply gravity
		self.velocity.y += self.gravity;
		// Update position
		self.x += self.velocity.x;
		self.y += self.velocity.y;
		// Boundary checks
		if (self.x < 50) {
			self.x = 50;
		} else if (self.x > 2048 - 50) {
			self.x = 2048 - 50;
		}
	};
	return self;
});
var Spike = Container.expand(function () {
	var self = Container.call(this);
	var spikeGraphics = self.attachAsset('spike', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Make it look more like a spike
	spikeGraphics.rotation = Math.PI / 4; // 45 degrees
	return self;
});

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

/**** 
* Game Code
****/ 
// Game state variables
var player;
var platforms = [];
var coins = [];
var spikes = [];
var ground;
var isGameActive = false;
var score = 0;
var level = storage.currentLevel || 1;
var leftTouchActive = false;
var rightTouchActive = false;
// UI Elements
var scoreTxt;
var levelTxt;
var instructionsTxt;
// Initialize game elements
function initGame() {
	// Reset game state
	platforms = [];
	coins = [];
	spikes = [];
	score = 0;
	isGameActive = true;
	// Play background music with fade in
	LK.playMusic('gameMusic', {
		fade: {
			start: 0,
			end: 0.8,
			duration: 1000
		}
	});
	// Create player
	player = new Player();
	player.x = 150;
	player.y = 2732 - 200;
	game.addChild(player);
	// Create ground
	ground = LK.getAsset('ground', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	ground.x = 2048 / 2;
	ground.y = 2732 - 20;
	game.addChild(ground);
	// Create UI elements
	scoreTxt = new Text2('Score: 0', {
		size: 70,
		fill: 0xFFFFFF
	});
	scoreTxt.anchor.set(0, 0);
	LK.gui.topRight.addChild(scoreTxt);
	scoreTxt.x = -300; // Offset from right edge
	levelTxt = new Text2('Level: ' + level, {
		size: 70,
		fill: 0xFFFFFF
	});
	levelTxt.anchor.set(0, 0);
	LK.gui.top.addChild(levelTxt);
	// Add instructions at first
	if (level === 1) {
		instructionsTxt = new Text2('Tap left/right sides to move\nTap middle to jump', {
			size: 70,
			fill: 0xFFFFFF
		});
		instructionsTxt.anchor.set(0.5, 0);
		instructionsTxt.y = 200;
		LK.gui.center.addChild(instructionsTxt);
		// Hide instructions after 5 seconds
		LK.setTimeout(function () {
			if (instructionsTxt) {
				tween(instructionsTxt, {
					alpha: 0
				}, {
					duration: 1000,
					onFinish: function onFinish() {
						if (instructionsTxt && instructionsTxt.parent) {
							instructionsTxt.parent.removeChild(instructionsTxt);
						}
					}
				});
			}
		}, 5000);
	}
	// Create level elements
	createLevel(level);
}
// Level creation
function createLevel(levelNum) {
	// Clear level text
	levelTxt.setText('Level: ' + levelNum);
	var platformCount = 5 + levelNum * 2; // More platforms in higher levels
	var coinCount = 3 + levelNum; // More coins in higher levels
	var spikeCount = levelNum; // Spikes start appearing from level 1
	// Create platforms with increasing complexity based on level
	for (var i = 0; i < platformCount; i++) {
		var platform = new Platform();
		// Calculate platform position
		var xPos = 100 + Math.random() * (2048 - 200);
		var yPos = 2732 - 200 - i * 300 - Math.random() * 100;
		platform.x = xPos;
		platform.y = yPos;
		// Make some platforms moving in higher levels
		if (levelNum > 1 && Math.random() < 0.3) {
			platform.setMoving(true, 2 + Math.random() * levelNum, Math.max(50, xPos - 300), Math.min(2048 - 50, xPos + 300));
		}
		platforms.push(platform);
		game.addChild(platform);
	}
	// Create coins
	for (var j = 0; j < coinCount; j++) {
		var coin = new Coin();
		// Place coins above platforms
		var platformIndex = Math.floor(Math.random() * platforms.length);
		coin.x = platforms[platformIndex].x + (-100 + Math.random() * 200);
		coin.y = platforms[platformIndex].y - 70 - Math.random() * 50;
		coins.push(coin);
		game.addChild(coin);
	}
	// Create spikes (hazards)
	for (var k = 0; k < spikeCount; k++) {
		var spike = new Spike();
		// Place spikes on some platforms
		var platformIndex = Math.floor(Math.random() * (platforms.length - 1)) + 1; // Avoid first platform
		spike.x = platforms[platformIndex].x + (-50 + Math.random() * 100);
		spike.y = platforms[platformIndex].y - 30;
		spikes.push(spike);
		game.addChild(spike);
	}
}
// Handle input events
game.down = function (x, y, obj) {
	if (!isGameActive) {
		return;
	}
	// Determine touch position for controls
	if (x < 2048 / 3) {
		// Left third of screen
		leftTouchActive = true;
		player.moveDirection = -1;
	} else if (x > 2048 / 3 * 2) {
		// Right third of screen
		rightTouchActive = true;
		player.moveDirection = 1;
	} else {
		// Middle third - jump
		player.jump();
	}
};
game.up = function (x, y, obj) {
	// Reset movement when touch ends
	if (x < 2048 / 3) {
		leftTouchActive = false;
	} else if (x > 2048 / 3 * 2) {
		rightTouchActive = false;
	}
	// If both left and right are released, stop moving
	if (!leftTouchActive && !rightTouchActive) {
		player.moveDirection = 0;
	} else if (leftTouchActive) {
		player.moveDirection = -1;
	} else if (rightTouchActive) {
		player.moveDirection = 1;
	}
};
game.move = function (x, y, obj) {
	// Handle dragging (not critical for this game)
};
// Main game loop
game.update = function () {
	if (!isGameActive) {
		return;
	}
	// Update player
	player.update();
	// Check if player fell off the bottom
	if (player.y > 2732 + 100) {
		gameOver();
		return;
	}
	// Check for collisions with ground
	if (player.y + 50 >= ground.y - 20 && player.velocity.y > 0) {
		player.y = ground.y - 20 - 50;
		player.velocity.y = 0;
		player.isOnGround = true;
		player.isJumping = false;
	}
	// Check for platform collisions
	var wasOnGround = player.isOnGround;
	player.isOnGround = false;
	for (var i = 0; i < platforms.length; i++) {
		var platform = platforms[i];
		platform.update();
		// Only check for landing on top of platforms
		if (player.y + 50 <= platform.y - platform.height / 2 && player.y + 50 + player.velocity.y >= platform.y - platform.height / 2 && player.x + 40 > platform.x - platform.width / 2 && player.x - 40 < platform.x + platform.width / 2) {
			player.y = platform.y - platform.height / 2 - 50;
			player.velocity.y = 0;
			player.isOnGround = true;
			player.isJumping = false;
			// If platform is moving, move the player with it
			if (platform.moving) {
				if (platform.movingLeft) {
					player.x -= platform.moveSpeed;
				} else {
					player.x += platform.moveSpeed;
				}
			}
		}
	}
	// Check for coin collisions
	for (var j = 0; j < coins.length; j++) {
		var coin = coins[j];
		coin.update();
		if (player.intersects(coin) && !coin.collected) {
			if (coin.collect()) {
				// Increase score
				score += 10;
				scoreTxt.setText('Score: ' + score);
				// Remove from array
				coins.splice(j, 1);
				j--;
			}
		}
	}
	// Check for spike collisions
	for (var k = 0; k < spikes.length; k++) {
		var spike = spikes[k];
		if (player.intersects(spike)) {
			LK.getSound('hit').play();
			gameOver();
			return;
		}
	}
	// Check if player reached the top of the screen to complete level
	if (player.y < 100) {
		completeLevel();
	}
};
// Level completion
function completeLevel() {
	isGameActive = false;
	// Briefly fade music for level transition effect
	LK.playMusic('gameMusic', {
		fade: {
			start: 0.8,
			end: 0.3,
			duration: 400
		}
	});
	LK.setTimeout(function () {
		LK.playMusic('gameMusic', {
			fade: {
				start: 0.3,
				end: 0.8,
				duration: 600
			}
		});
	}, 400);
	// Save progress
	level++;
	storage.currentLevel = level;
	// Add level completion bonus
	var levelBonus = level * 50;
	score += levelBonus;
	// Check for high score
	if (score > storage.highScore) {
		storage.highScore = score;
	}
	// Show level complete message
	var completeTxt = new Text2('Level Complete!\nScore: ' + score + '\nBonus: ' + levelBonus, {
		size: 90,
		fill: 0xFFFFFF
	});
	completeTxt.anchor.set(0.5, 0.5);
	LK.gui.center.addChild(completeTxt);
	// Flash screen with success color
	LK.effects.flashScreen(0x27ae60, 1000);
	// Create next level after delay
	LK.setTimeout(function () {
		// Clear all game objects
		for (var i = 0; i < platforms.length; i++) {
			platforms[i].destroy();
		}
		for (var j = 0; j < coins.length; j++) {
			coins[j].destroy();
		}
		for (var k = 0; k < spikes.length; k++) {
			spikes[k].destroy();
		}
		player.destroy();
		ground.destroy();
		if (completeTxt && completeTxt.parent) {
			completeTxt.parent.removeChild(completeTxt);
		}
		// Start next level
		initGame();
	}, 3000);
}
// Game over handling
function gameOver() {
	isGameActive = false;
	LK.getSound('hit').play();
	// Fade out music
	LK.playMusic('gameMusic', {
		fade: {
			start: 0.8,
			end: 0,
			duration: 800
		}
	});
	// Check for high score
	if (score > storage.highScore) {
		storage.highScore = score;
	}
	// Flash screen red
	LK.effects.flashScreen(0xe74c3c, 1000);
	// Show game over
	LK.showGameOver();
}
// Initialize the game when it loads
initGame();

===================================================================
--- original.js
+++ change.js
@@ -166,10 +166,16 @@
 	coins = [];
 	spikes = [];
 	score = 0;
 	isGameActive = true;
-	// Play background music
-	LK.playMusic('gameMusic');
+	// Play background music with fade in
+	LK.playMusic('gameMusic', {
+		fade: {
+			start: 0,
+			end: 0.8,
+			duration: 1000
+		}
+	});
 	// Create player
 	player = new Player();
 	player.x = 150;
 	player.y = 2732 - 200;
@@ -377,8 +383,25 @@
 };
 // Level completion
 function completeLevel() {
 	isGameActive = false;
+	// Briefly fade music for level transition effect
+	LK.playMusic('gameMusic', {
+		fade: {
+			start: 0.8,
+			end: 0.3,
+			duration: 400
+		}
+	});
+	LK.setTimeout(function () {
+		LK.playMusic('gameMusic', {
+			fade: {
+				start: 0.3,
+				end: 0.8,
+				duration: 600
+			}
+		});
+	}, 400);
 	// Save progress
 	level++;
 	storage.currentLevel = level;
 	// Add level completion bonus
@@ -421,8 +444,16 @@
 // Game over handling
 function gameOver() {
 	isGameActive = false;
 	LK.getSound('hit').play();
+	// Fade out music
+	LK.playMusic('gameMusic', {
+		fade: {
+			start: 0.8,
+			end: 0,
+			duration: 800
+		}
+	});
 	// Check for high score
 	if (score > storage.highScore) {
 		storage.highScore = score;
 	}