/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	coins: 0,
	bestDistance: 0,
	upgrade_fuel: 0,
	upgrade_armor: 0,
	upgrade_power: 0
});

/**** 
* Classes
****/ 
// Car (player vehicle)
var Car = Container.expand(function () {
	var self = Container.call(this);
	var carSprite = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = carSprite.width;
	self.height = carSprite.height;
	self.fuel = 100;
	self.maxFuel = 100;
	self.health = 100;
	self.maxHealth = 100;
	self.speed = 1.3;
	self.alive = true;
	// For drag
	self.isDragging = false;
	// For upgrades
	self.applyUpgrades = function () {
		self.maxFuel = 100 + storage.upgrade_fuel * 30;
		self.fuel = self.maxFuel;
		self.maxHealth = 100 + storage.upgrade_armor * 40;
		self.health = self.maxHealth;
		self.speed = 16 + storage.upgrade_power * 2;
	};
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health < 0) self.health = 0;
		if (self.health === 0) {
			self.alive = false;
		}
	};
	self.refuel = function (amount) {
		self.fuel += amount;
		if (self.fuel > self.maxFuel) self.fuel = self.maxFuel;
	};
	self.update = function () {
		// Car movement is handled in game.update
	};
	return self;
});
// Coin
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinSprite = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = coinSprite.width;
	self.height = coinSprite.height;
	self.speed = 1.5;
	self.collected = false;
	self.update = function () {
		self.x -= self.speed;
	};
	return self;
});
// Zombie
var Zombie = Container.expand(function () {
	var self = Container.call(this);
	var zombieSprite = self.attachAsset('zombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = zombieSprite.width;
	self.height = zombieSprite.height;
	self.speed = 0.7 + Math.random() * 0.3;
	self.alive = true;
	self.update = function () {
		self.x -= self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Road
// Car (player vehicle)
// Zombie
// Coin
// Fuel Bar BG
// Fuel Bar FG
// Health Bar BG
// Health Bar FG
// Road
// Sound effects
// Music
var road = LK.getAsset('road', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 2200
});
game.addChild(road);
// Car
var car = new Car();
car.x = 400;
car.y = 2200 + 100; // Centered on road
car.applyUpgrades();
game.addChild(car);
// Arrays for zombies and coins
var zombies = [];
var coins = [];
// Distance tracking
var distance = 0;
var runActive = true;
// GUI: Distance
var distanceTxt = new Text2('0 m', {
	size: 90,
	fill: 0xFFFFFF
});
distanceTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(distanceTxt);
// GUI: Coins
var coinsTxt = new Text2(storage.coins + '', {
	size: 90,
	fill: 0xFFD700
});
coinsTxt.anchor.set(0.5, 0);
LK.gui.topRight.addChild(coinsTxt);
// GUI: Fuel Bar
var fuelBarBG = LK.getAsset('fuelBarBG', {
	anchorX: 0,
	anchorY: 0.5,
	x: 100,
	y: 120
});
var fuelBarFG = LK.getAsset('fuelBarFG', {
	anchorX: 0,
	anchorY: 0.5,
	x: 100,
	y: 120
});
LK.gui.top.addChild(fuelBarBG);
LK.gui.top.addChild(fuelBarFG);
// GUI: Health Bar
var healthBarBG = LK.getAsset('healthBarBG', {
	anchorX: 0,
	anchorY: 0.5,
	x: 100,
	y: 200
});
var healthBarFG = LK.getAsset('healthBarFG', {
	anchorX: 0,
	anchorY: 0.5,
	x: 100,
	y: 200
});
LK.gui.top.addChild(healthBarBG);
LK.gui.top.addChild(healthBarFG);
// PC controls: keyboard arrow keys or WASD for car movement
var keyState = {
	up: false,
	down: false
};
// Listen for keydown and keyup events using LK.on (simulated for PC)
// LK does not provide keyboard events, so we simulate with a global object for testing
// NOTE: In the FRVR/LK environment, keyboard events are not natively supported.
// For PC testing, you may need to use a custom event system or test with touch/mouse events.
// Here, we provide a fallback for environments that do support document events.
if (typeof document !== "undefined" && typeof document.addEventListener === "function") {
	document.addEventListener('keydown', function (e) {
		if (!runActive) return;
		if (e.code === 'ArrowUp' || e.code === 'KeyW') keyState.up = true;
		if (e.code === 'ArrowDown' || e.code === 'KeyS') keyState.down = true;
	});
	document.addEventListener('keyup', function (e) {
		if (e.code === 'ArrowUp' || e.code === 'KeyW') keyState.up = false;
		if (e.code === 'ArrowDown' || e.code === 'KeyS') keyState.down = false;
	});
}
// Spawn zombies
function spawnZombie() {
	var zombie = new Zombie();
	zombie.x = 2048 + 100;
	// Random vertical position on road
	var minY = road.y + zombie.height / 2;
	var maxY = road.y + road.height - zombie.height / 2;
	zombie.y = minY + Math.random() * (maxY - minY);
	zombies.push(zombie);
	game.addChild(zombie);
}
// Spawn coins
function spawnCoin() {
	var coin = new Coin();
	coin.x = 2048 + 60;
	// Random vertical position on road
	var minY = road.y + coin.height / 2;
	var maxY = road.y + road.height - coin.height / 2;
	coin.y = minY + Math.random() * (maxY - minY);
	coins.push(coin);
	game.addChild(coin);
}
// Reset run
function startRun() {
	// Remove all zombies and coins
	for (var i = 0; i < zombies.length; ++i) zombies[i].destroy();
	for (var i = 0; i < coins.length; ++i) coins[i].destroy();
	zombies = [];
	coins = [];
	// Reset car
	car.applyUpgrades();
	car.x = 400;
	car.y = 2200 + 100;
	car.alive = true;
	// Reset distance
	distance = 0;
	runActive = true;
	// Update GUI
	distanceTxt.setText('0 m');
	coinsTxt.setText(storage.coins + '');
	// Reset bars
	updateBars();
	// Play music
	LK.playMusic('bgmusic');
}
// Update fuel and health bars
function updateBars() {
	// Fuel
	var fuelFrac = car.fuel / car.maxFuel;
	if (fuelFrac < 0) fuelFrac = 0;
	if (fuelFrac > 1) fuelFrac = 1;
	fuelBarFG.width = 400 * fuelFrac;
	// Health
	var healthFrac = car.health / car.maxHealth;
	if (healthFrac < 0) healthFrac = 0;
	if (healthFrac > 1) healthFrac = 1;
	healthBarFG.width = 400 * healthFrac;
}
// Game update
game.update = function () {
	if (!runActive) return;
	// PC controls: move car up/down with keyboard
	var moveAmount = 18 + storage.upgrade_power * 1.5;
	if (keyState.up) {
		car.y -= moveAmount;
	}
	if (keyState.down) {
		car.y += moveAmount;
	}
	// Clamp car to road
	var minY = road.y + car.height / 2;
	var maxY = road.y + road.height - car.height / 2;
	if (car.y < minY) car.y = minY;
	if (car.y > maxY) car.y = maxY;
	// Move car forward
	car.x += car.speed * 0.22;
	if (car.x > 800) car.x = 800; // Car stays at 800, world scrolls
	// Scroll world: move all objects left by car.speed
	for (var i = 0; i < zombies.length; ++i) zombies[i].x -= car.speed * 0.13;
	for (var i = 0; i < coins.length; ++i) coins[i].x -= car.speed * 0.13;
	// Fuel consumption
	car.fuel -= 0.022 + 0.0015 * car.speed;
	if (car.fuel < 0) car.fuel = 0;
	// Distance
	distance += car.speed * 0.13;
	distanceTxt.setText(parseInt(distance / 10) + ' m');
	// Spawn zombies
	if (LK.ticks % 45 === 0) {
		spawnZombie();
	}
	// Spawn coins
	if (LK.ticks % 90 === 0) {
		spawnCoin();
	}
	// Update zombies
	for (var i = zombies.length - 1; i >= 0; --i) {
		var z = zombies[i];
		z.update();
		// Remove if off screen
		if (z.x < -200) {
			z.destroy();
			zombies.splice(i, 1);
			continue;
		}
		// Collision with car
		if (car.alive && z.alive && car.intersects(z)) {
			z.alive = false;
			LK.getSound('zombiehit').play();
			tween(z, {
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					z.destroy();
				}
			});
			zombies.splice(i, 1);
			// Damage car
			car.takeDamage(20 - storage.upgrade_armor * 3);
			// Flash car
			LK.effects.flashObject(car, 0xff0000, 300);
			// Bump car back
			tween(car, {
				x: car.x - 40
			}, {
				duration: 120,
				easing: tween.easeOut
			});
			// If car dead, end run
			if (!car.alive) {
				endRun();
				return;
			}
		}
	}
	// Update coins
	for (var i = coins.length - 1; i >= 0; --i) {
		var c = coins[i];
		c.update();
		// Remove if off screen
		if (c.x < -100) {
			c.destroy();
			coins.splice(i, 1);
			continue;
		}
		// Collect coin
		if (!c.collected && car.intersects(c)) {
			c.collected = true;
			LK.getSound('coin').play();
			storage.coins += 1;
			coinsTxt.setText(storage.coins + '');
			tween(c, {
				alpha: 0,
				scaleX: 1.5,
				scaleY: 1.5
			}, {
				duration: 200,
				onFinish: function onFinish() {
					c.destroy();
				}
			});
			coins.splice(i, 1);
		}
	}
	// Update bars
	updateBars();
	// Out of fuel
	if (car.fuel <= 0) {
		car.fuel = 0;
		endRun();
		return;
	}
};
// End run
function endRun() {
	runActive = false;
	// Save best distance
	var meters = parseInt(distance / 10);
	if (meters > storage.bestDistance) storage.bestDistance = meters;
	// Show game over
	LK.effects.flashScreen(0xff0000, 800);
	LK.showGameOver();
	LK.stopMusic();
}
// On game over, reset run
LK.on('gameover', function () {
	startRun();
});
// On you win (not used, but for completeness)
LK.on('youwin', function () {
	startRun();
});
// Garage menu logic
function showGarageMenu(onDone) {
	// Simple garage menu using Text2 and GUI overlay
	// Remove any previous garage UI
	if (typeof garageUI !== "undefined" && garageUI) {
		LK.gui.center.removeChild(garageUI);
		garageUI = null;
	}
	var garageUI = new Container();
	// Title
	var title = new Text2("Garage", {
		size: 120,
		fill: "#fff"
	});
	title.anchor.set(0.5, 0);
	title.x = 0;
	title.y = 0;
	garageUI.addChild(title);
	// Coin display
	var coinsLabel = new Text2("Coins: " + storage.coins, {
		size: 80,
		fill: 0xFFD700
	});
	coinsLabel.anchor.set(0.5, 0);
	coinsLabel.x = 0;
	coinsLabel.y = 140;
	garageUI.addChild(coinsLabel);
	// Upgrade buttons and labels
	var upgrades = [{
		key: "upgrade_fuel",
		label: "Fuel",
		cost: 10,
		y: 300,
		desc: "+30 max fuel"
	}, {
		key: "upgrade_armor",
		label: "Armor",
		cost: 15,
		y: 500,
		desc: "+40 max health"
	}, {
		key: "upgrade_power",
		label: "Power",
		cost: 20,
		y: 700,
		desc: "+2 speed"
	}];
	var upgradeButtons = [];
	for (var i = 0; i < upgrades.length; ++i) {
		(function (i) {
			var upg = upgrades[i];
			// Label
			var upgLabel = new Text2(upg.label + " Lv." + (storage[upg.key] || 0) + " (" + upg.desc + ")", {
				size: 70,
				fill: "#fff"
			});
			upgLabel.anchor.set(0.5, 0);
			upgLabel.x = 0;
			upgLabel.y = upg.y;
			garageUI.addChild(upgLabel);
			// Cost
			var costLabel = new Text2("Cost: " + upg.cost, {
				size: 60,
				fill: 0xFFD700
			});
			costLabel.anchor.set(0.5, 0);
			costLabel.x = -200;
			costLabel.y = upg.y + 90;
			garageUI.addChild(costLabel);
			// Upgrade button
			var btn = LK.getAsset('fuelBarFG', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: 200,
				y: upg.y + 120,
				width: 220,
				height: 80
			});
			btn.tint = 0x44ff44;
			garageUI.addChild(btn);
			// Button label
			var btnLabel = new Text2("Upgrade", {
				size: 50,
				fill: "#222"
			});
			btnLabel.anchor.set(0.5, 0.5);
			btnLabel.x = btn.x;
			btnLabel.y = btn.y;
			garageUI.addChild(btnLabel);
			// Touch/click handler
			btn.interactive = true;
			btn.down = function (x, y, obj) {
				if (storage.coins >= upg.cost) {
					storage.coins -= upg.cost;
					storage[upg.key] = (storage[upg.key] || 0) + 1;
					coinsLabel.setText("Coins: " + storage.coins);
					upgLabel.setText(upg.label + " Lv." + storage[upg.key] + " (" + upg.desc + ")");
				}
			};
			upgradeButtons.push(btn);
		})(i);
	}
	// Start button
	var startBtn = LK.getAsset('fuelBarFG', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: 1100,
		// moved down by 100px
		width: 400,
		height: 120
	});
	startBtn.tint = 0x4488ff;
	garageUI.addChild(startBtn);
	var startLabel = new Text2("Start Run", {
		size: 70,
		fill: "#fff"
	});
	startLabel.anchor.set(0.5, 0.5);
	startLabel.x = startBtn.x;
	startLabel.y = startBtn.y;
	garageUI.addChild(startLabel);
	startBtn.interactive = true;
	startBtn.down = function (x, y, obj) {
		// Remove garage UI and start run
		LK.gui.center.removeChild(garageUI);
		garageUI = null;
		if (typeof onDone === "function") onDone();
	};
	// Center garage UI
	garageUI.x = 0;
	garageUI.y = -350; // Move the garage menu up by 350px (higher than before)
	LK.gui.center.addChild(garageUI);
}
// Show garage menu before starting run
showGarageMenu(function () {
	startRun();
});
// Add a garage button under the game that opens the garage menu when pressed
var garageBtn = LK.getAsset('fuelBarFG', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 0,
	y: -80,
	// moved up by 80px
	width: 400,
	height: 120
});
garageBtn.tint = 0x8888ff;
var garageBtnLabel = new Text2("Garage", {
	size: 70,
	fill: "#fff"
});
garageBtnLabel.anchor.set(0.5, 0.5);
garageBtnLabel.x = garageBtn.x;
garageBtnLabel.y = garageBtn.y;
// Container for button and label
var garageBtnContainer = new Container();
garageBtnContainer.addChild(garageBtn);
garageBtnContainer.addChild(garageBtnLabel);
// Place the button at the bottom center of the GUI
LK.gui.bottom.addChild(garageBtnContainer);
// Button handler to open garage menu
garageBtn.interactive = true;
garageBtn.down = function (x, y, obj) {
	// Just open the garage menu, do not end the run or stop the game
	showGarageMenu(function () {
		// Do not resume run, as game is over
	});
};

===================================================================
--- original.js
+++ change.js
@@ -490,9 +490,10 @@
 	var startBtn = LK.getAsset('fuelBarFG', {
 		anchorX: 0.5,
 		anchorY: 0.5,
 		x: 0,
-		y: 1000,
+		y: 1100,
+		// moved down by 100px
 		width: 400,
 		height: 120
 	});
 	startBtn.tint = 0x4488ff;
@@ -525,9 +526,10 @@
 var garageBtn = LK.getAsset('fuelBarFG', {
 	anchorX: 0.5,
 	anchorY: 0.5,
 	x: 0,
-	y: 0,
+	y: -80,
+	// moved up by 80px
 	width: 400,
 	height: 120
 });
 garageBtn.tint = 0x8888ff;