/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	cubeColor: "cube_blue",
	selectedLevel: 1
});

/**** 
* Classes
****/ 
// Player Cube
var Cube = Container.expand(function () {
	var self = Container.call(this);
	// Attach cube asset (color set externally)
	self.cubeAsset = null;
	self.setCubeColor = function (colorId) {
		if (self.cubeAsset) {
			self.removeChild(self.cubeAsset);
		}
		self.cubeAsset = self.attachAsset(colorId, {
			anchorX: 0.5,
			anchorY: 1
		});
	};
	// Physics
	self.vy = 0;
	self.isOnGround = true;
	// Jump method
	self.jump = function () {
		if (self.isOnGround) {
			self.vy = -38;
			self.isOnGround = false;
			LK.getSound('jump').play();
		}
	};
	// Update method
	self.update = function () {
		// Gravity
		self.vy += 2.2;
		self.y += self.vy;
		// Ground collision
		if (self.y > groundY) {
			self.y = groundY;
			self.vy = 0;
			self.isOnGround = true;
		}
	};
	return self;
});
// Nave (Spaceship) for levels 3 and 4
var Nave = Container.expand(function () {
	var self = Container.call(this);
	var naveAsset = self.attachAsset('nave', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Nave physics
	self.vy = 0;
	self.moveUp = false;
	self.moveDown = false;
	self.maxY = 200; // Top boundary
	self.minY = groundY - 100; // Bottom boundary
	// Movement speed
	self.moveSpeed = 15;
	// Update method
	self.update = function () {
		if (self.moveUp) {
			self.vy = -self.moveSpeed;
		} else if (self.moveDown) {
			self.vy = self.moveSpeed;
		} else {
			self.vy = 0;
		}
		self.y += self.vy;
		// Boundary collision
		if (self.y < self.maxY) {
			self.y = self.maxY;
		}
		if (self.y > self.minY) {
			self.y = self.minY;
		}
	};
	return self;
});
// Spike Obstacle
var Spike = Container.expand(function () {
	var self = Container.call(this);
	var spikeAsset = self.attachAsset('spike', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.passed = false; // For scoring
	// Update method
	self.update = function () {
		self.x -= spikeSpeed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Level Configuration
// --- Global Variables ---
// Cube (player) - customizable color, default blue
// Spike obstacle
// Ground
// Jump sound
// Hit sound
// Music
var LevelConfig = {
	1: {
		name: 'Level 1: Warm Up',
		initialSpikeInterval: 100,
		initialSpikeSpeed: 12,
		difficultyMultiplier: 0.8
	},
	2: {
		name: 'Level 2: Challenge',
		initialSpikeInterval: 75,
		initialSpikeSpeed: 18,
		difficultyMultiplier: 1.0
	},
	3: {
		name: 'Level 3: Insane',
		initialSpikeInterval: 60,
		initialSpikeSpeed: 24,
		difficultyMultiplier: 1.3,
		isNaveMode: true
	},
	4: {
		name: 'Level 4: Nave Mode',
		initialSpikeInterval: 50,
		initialSpikeSpeed: 28,
		difficultyMultiplier: 1.5,
		isNaveMode: true
	} //{K_new}
};
var groundY = 2732 - 80; // y position of ground
var cube = null;
var spikes = [];
var spikeTimer = 0;
var spikeInterval = 90; // frames between spikes (decreases with difficulty)
var spikeSpeed = 18; // pixels per frame (increases with difficulty)
var score = 0;
var scoreTxt = null;
var running = false;
var menuContainer = null;
var playBtn = null;
var colorBtns = [];
var selectedColor = storage.cubeColor || 'cube_blue';
var ground = null;
var lastTick = 0;
var selectedLevel = storage.selectedLevel || 1;
var levelStartTime = 0;
var levelDuration = 60000; // 60 seconds in milliseconds
var levelTimerTxt = null;
var levelBtns = [];
var levelSelectorContainer = null;
var isNaveMode = false;
var nave = null;
// --- Main Menu ---
function showMenu() {
	running = false;
	// Remove game elements if present
	if (cube) {
		cube.destroy();
		cube = null;
	}
	for (var i = 0; i < spikes.length; i++) {
		spikes[i].destroy();
	}
	spikes = [];
	if (ground) {
		ground.destroy();
		ground = null;
	}
	if (scoreTxt) {
		scoreTxt.destroy();
		scoreTxt = null;
	}
	if (levelTimerTxt) {
		levelTimerTxt.destroy();
		levelTimerTxt = null;
	}
	// Menu container
	menuContainer = new Container();
	// Title
	var title = new Text2('Cube Runner', {
		size: 180,
		fill: 0x222222
	});
	title.anchor.set(0.5, 0);
	title.x = 2048 / 2;
	title.y = 220;
	menuContainer.addChild(title);
	// Subtitle
	var subtitle = new Text2('Spike Escape', {
		size: 90,
		fill: 0x888888
	});
	subtitle.anchor.set(0.5, 0);
	subtitle.x = 2048 / 2;
	subtitle.y = 420;
	menuContainer.addChild(subtitle);
	// Level selector label
	var levelLabel = new Text2('Select Level', {
		size: 70,
		fill: 0x444444
	}); //{level_label}
	levelLabel.anchor.set(0.5, 0);
	levelLabel.x = 2048 / 2;
	levelLabel.y = 600;
	menuContainer.addChild(levelLabel);
	// Level buttons
	levelBtns = [];
	for (var l = 1; l <= 4; l++) {
		(function (levelNum) {
			var levelBtn = new Container();
			var levelBtnShape = levelBtn.attachAsset('cube_blue', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			levelBtnShape.width = 280;
			levelBtnShape.height = 100;
			levelBtn.x = 2048 / 2 - 300 + (levelNum - 1) * 300;
			levelBtn.y = 750;
			// Highlight if selected
			if (selectedLevel === levelNum) {
				levelBtnShape.tint = 0x2ecc71;
			}
			// Label with level name
			var levelNameTxt = new Text2(LevelConfig[levelNum].name, {
				size: 36,
				fill: 0xFFFFFF
			});
			levelNameTxt.anchor.set(0.5, 0.5);
			levelBtn.addChild(levelNameTxt);
			// Touch event
			levelBtn.down = function (x, y, obj) {
				selectedLevel = levelNum;
				storage.selectedLevel = selectedLevel;
				showMenu();
			};
			levelBtns.push(levelBtn);
			menuContainer.addChild(levelBtn);
		})(l);
	}
	// Customizer label
	var customLabel = new Text2('Customize Your Cube', {
		size: 70,
		fill: 0x444444
	});
	customLabel.anchor.set(0.5, 0);
	customLabel.x = 2048 / 2;
	customLabel.y = 950;
	menuContainer.addChild(customLabel);
	// Color buttons
	var colors = ['cube_blue', 'cube_red', 'cube_green', 'cube_yellow', 'cube_purple'];
	var colorNames = ['Blue', 'Red', 'Green', 'Yellow', 'Purple'];
	colorBtns = [];
	for (var i = 0; i < colors.length; i++) {
		(function (idx) {
			var btn = new Container();
			var asset = btn.attachAsset(colors[idx], {
				anchorX: 0.5,
				anchorY: 0.5
			});
			btn.x = 2048 / 2 - 350 + idx * 175;
			btn.y = 1150;
			btn.scale.set(1.1, 1.1);
			// Highlight if selected
			if (selectedColor === colors[idx]) {
				asset.width += 18;
				asset.height += 18;
			}
			// Label
			var lbl = new Text2(colorNames[idx], {
				size: 38,
				fill: 0x222222
			});
			lbl.anchor.set(0.5, 0);
			lbl.x = 0;
			lbl.y = 90;
			btn.addChild(lbl);
			// Touch event
			btn.down = function (x, y, obj) {
				selectedColor = colors[idx];
				storage.cubeColor = selectedColor;
				showMenu();
			};
			colorBtns.push(btn);
			menuContainer.addChild(btn);
		})(i);
	}
	// Play button
	playBtn = new Container();
	var playBtnShape = playBtn.attachAsset('cube_green', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	playBtnShape.width = 320;
	playBtnShape.height = 120;
	playBtn.x = 2048 / 2;
	playBtn.y = 1450;
	var playTxt = new Text2('PLAY', {
		size: 80,
		fill: 0xFFFFFF
	});
	playTxt.anchor.set(0.5, 0.5);
	playBtn.addChild(playTxt);
	playBtn.down = function (x, y, obj) {
		startGame();
	};
	menuContainer.addChild(playBtn);
	// Instructions
	var inst = new Text2('Tap to jump. Dodge the spikes!\nSelect a level and customize your cube.', {
		size: 50,
		fill: 0x666666
	});
	inst.anchor.set(0.5, 0);
	inst.x = 2048 / 2;
	inst.y = 1700;
	menuContainer.addChild(inst);
	game.addChild(menuContainer);
	// Play music
	LK.playMusic('bgmusic', {
		fade: {
			start: 0,
			end: 1,
			duration: 1000
		}
	});
}
// --- Start Game ---
function startGame() {
	running = true;
	if (menuContainer) {
		menuContainer.destroy();
		menuContainer = null;
	}
	// Reset variables
	score = 0;
	spikeTimer = 0;
	// Apply level-specific settings
	var levelConfig = LevelConfig[selectedLevel];
	spikeInterval = levelConfig.initialSpikeInterval;
	spikeSpeed = levelConfig.initialSpikeSpeed;
	isNaveMode = levelConfig.isNaveMode || false;
	spikes = [];
	levelStartTime = Date.now();
	// Ground
	ground = LK.getAsset('ground', {
		anchorX: 0,
		anchorY: 0
	});
	ground.x = 0;
	ground.y = groundY;
	game.addChild(ground);
	// Create player based on mode
	if (isNaveMode) {
		nave = new Nave();
		nave.x = 420;
		nave.y = groundY - 100;
		game.addChild(nave);
		cube = null;
	} else {
		cube = new Cube();
		cube.setCubeColor(selectedColor);
		cube.x = 420;
		cube.y = groundY;
		game.addChild(cube);
		nave = null;
	}
	// Score text
	scoreTxt = new Text2('0', {
		size: 120,
		fill: 0x222222
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	// Level timer text
	levelTimerTxt = new Text2('60', {
		size: 100,
		fill: 0x222222
	});
	levelTimerTxt.anchor.set(0.5, 0);
	levelTimerTxt.x = 2048 - 150;
	levelTimerTxt.y = 40;
	LK.gui.top.addChild(levelTimerTxt);
	// Play music (if not already playing)
	LK.playMusic('bgmusic', {
		fade: {
			start: 0,
			end: 1,
			duration: 1000
		}
	});
}
// --- Game Over ---
function gameOver() {
	running = false;
	LK.getSound('hit').play();
	LK.effects.flashScreen(0xff0000, 800);
	LK.showGameOver();
	// After game over, return to menu
	LK.setTimeout(function () {
		showMenu();
	}, 1200);
}
// --- Game Tap (Jump) or Nave Control ---
game.down = function (x, y, obj) {
	if (!running) return;
	if (isNaveMode && nave) {
		if (y < 2732 / 2) {
			nave.moveUp = true;
		} else {
			nave.moveDown = true;
		}
	} else if (cube) {
		cube.jump();
	}
};
// --- Game Up (Stop Nave Movement) ---
game.up = function (x, y, obj) {
	if (!running) return;
	if (isNaveMode && nave) {
		nave.moveUp = false;
		nave.moveDown = false;
	}
};
// --- Main Update Loop ---
game.update = function () {
	if (!running) return;
	// Update player
	if (cube) cube.update();
	if (nave) nave.update();
	// Check level timer
	var elapsedTime = Date.now() - levelStartTime;
	var remainingSeconds = Math.ceil((levelDuration - elapsedTime) / 1000);
	if (remainingSeconds < 0) remainingSeconds = 0;
	if (levelTimerTxt) {
		levelTimerTxt.setText(remainingSeconds);
	}
	// Win condition: survive 60 seconds
	if (elapsedTime >= levelDuration) {
		running = false;
		LK.showYouWin();
		LK.setTimeout(function () {
			showMenu();
		}, 1200);
		return;
	}
	// Update spikes
	for (var i = spikes.length - 1; i >= 0; i--) {
		var s = spikes[i];
		s.update();
		// Remove if off screen
		if (s.x < -120) {
			s.destroy();
			spikes.splice(i, 1);
			continue;
		}
		// Score if passed
		var playerX = isNaveMode ? nave ? nave.x : 0 : cube ? cube.x : 0;
		if (playerX > 0 && !s.passed && s.x + 50 < playerX) {
			s.passed = true;
			score += 1;
			scoreTxt.setText(score);
			// Increase difficulty based on level multiplier
			var difficultyMultiplier = LevelConfig[selectedLevel].difficultyMultiplier;
			if (score % 10 === 0 && spikeInterval > 30) {
				spikeInterval -= Math.ceil(7 * difficultyMultiplier);
				spikeSpeed += 2.5 * difficultyMultiplier;
			}
		}
		// Collision
		var playerCollider = isNaveMode ? nave : cube;
		if (playerCollider && playerCollider.intersects(s)) {
			gameOver();
			return;
		}
	}
	// Spawn spikes
	spikeTimer++;
	if (spikeTimer >= spikeInterval) {
		spikeTimer = 0;
		var spike = new Spike();
		spike.x = 2048 + 80;
		spike.y = groundY;
		game.addChild(spike);
		spikes.push(spike);
	}
};
// --- Show Menu on Load ---
showMenu();

===================================================================
--- original.js
+++ change.js
@@ -472,9 +472,9 @@
 			continue;
 		}
 		// Score if passed
 		var playerX = isNaveMode ? nave ? nave.x : 0 : cube ? cube.x : 0;
-		if (!s.passed && s.x + 50 < playerX) {
+		if (playerX > 0 && !s.passed && s.x + 50 < playerX) {
 			s.passed = true;
 			score += 1;
 			scoreTxt.setText(score);
 			// Increase difficulty based on level multiplier