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

/**** 
* Classes
****/ 
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemySprite = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = enemySprite.width;
	self.height = enemySprite.height;
	self.speed = 12; // Downwards, can be increased by game speed
	self.alive = true;
	self.update = function () {
		self.y += self.speed * gameSpeed;
	};
	return self;
});
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroSprite = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = heroSprite.width;
	self.height = heroSprite.height;
	self.shootCooldown = 0; // frames until next allowed shot
	// Shoot method
	self.shoot = function () {
		if (self.shootCooldown > 0) return;
		var bullet = new HeroBullet();
		bullet.x = self.x;
		bullet.y = self.y - self.height / 2 - bullet.height / 2;
		heroBullets.push(bullet);
		game.addChild(bullet);
		self.shootCooldown = 12; // 0.2s at 60fps
		LK.getSound('shoot').play();
	};
	// Called every tick
	self.update = function () {
		if (self.shootCooldown > 0) self.shootCooldown--;
	};
	return self;
});
// Hero bullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletSprite = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = bulletSprite.width;
	self.height = bulletSprite.height;
	self.speed = -36; // Upwards
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Speed boost drop class
var SpeedBoost = Container.expand(function () {
	var self = Container.call(this);
	var boostSprite = self.attachAsset('speedBoost', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = boostSprite.width;
	self.height = boostSprite.height;
	self.speed = 10;
	self.update = function () {
		self.y += self.speed * gameSpeed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x111111
});

/**** 
* Game Code
****/ 
// Music
// Sound effects
// Road (background)
// Speed boost drop
// Enemy
// Hero bullet
// Hero (player)
// --- Global variables ---
var hero;
var heroBullets = [];
var enemies = [];
var boosts = [];
var lives = 3;
var gameTime = 0; // ms
var gameDuration = 20000; // 20 seconds
var gameSpeed = 1; // Multiplier, affected by boosts
var boostActive = false;
var boostTimer = 0;
var lastEnemySpawnTick = 0;
var enemySpawnInterval = 48; // frames (0.8s at 60fps)
var score = 0;
var finished = false;
// --- Road background ---
var road = LK.getAsset('road', {
	anchorX: 0.5,
	anchorY: 0
});
road.x = 2048 / 2;
road.y = 0;
game.addChild(road);
// --- Hero ---
hero = new Hero();
hero.x = 2048 / 2;
hero.y = 2732 - 350;
game.addChild(hero);
// --- GUI: Lives ---
var livesTxt = new Text2('♥♥♥', {
	size: 90,
	fill: 0xFF4D4D
});
livesTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(livesTxt);
// --- GUI: Timer ---
var timerTxt = new Text2('20.0', {
	size: 90,
	fill: 0xFFFFFF
});
timerTxt.anchor.set(0.5, 0);
LK.gui.topRight.addChild(timerTxt);
// --- GUI: Score ---
var scoreTxt = new Text2('0', {
	size: 90,
	fill: 0xFFE066
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// --- Music ---
LK.playMusic('bgmusic');
// --- Helper: Update GUI ---
function updateLivesDisplay() {
	var s = '';
	for (var i = 0; i < lives; i++) s += '♥';
	livesTxt.setText(s);
}
function updateTimerDisplay() {
	var t = Math.max(0, (gameDuration - gameTime) / 1000);
	timerTxt.setText(t.toFixed(1));
}
function updateScoreDisplay() {
	scoreTxt.setText(score);
}
// --- Touch controls: Move hero, shoot ---
var dragHero = false;
function clampHero(x, y) {
	// Clamp hero inside road
	var minX = road.x - road.width / 2 + hero.width / 2 + 20;
	var maxX = road.x + road.width / 2 - hero.width / 2 - 20;
	var minY = 200 + hero.height / 2;
	var maxY = 2732 - hero.height / 2 - 40;
	hero.x = Math.max(minX, Math.min(maxX, x));
	hero.y = Math.max(minY, Math.min(maxY, y));
}
game.down = function (x, y, obj) {
	// If touch is on hero, drag; else, shoot
	var local = hero.toLocal(game.toGlobal({
		x: x,
		y: y
	}));
	if (local.x >= -hero.width / 2 && local.x <= hero.width / 2 && local.y >= -hero.height / 2 && local.y <= hero.height / 2) {
		dragHero = true;
	} else {
		hero.shoot();
	}
};
game.move = function (x, y, obj) {
	if (dragHero) {
		clampHero(x, y);
	}
};
game.up = function (x, y, obj) {
	dragHero = false;
};
// --- Enemy spawn logic ---
function spawnEnemy() {
	// Enemies spawn randomly within road
	var enemy = new Enemy();
	var minX = road.x - road.width / 2 + enemy.width / 2 + 20;
	var maxX = road.x + road.width / 2 - enemy.width / 2 - 20;
	enemy.x = minX + Math.random() * (maxX - minX);
	enemy.y = -enemy.height / 2 - 10;
	// Randomize speed a bit
	enemy.speed = 10 + Math.random() * 6;
	enemies.push(enemy);
	game.addChild(enemy);
}
// --- Boost logic ---
function spawnBoost(x, y) {
	var boost = new SpeedBoost();
	boost.x = x;
	boost.y = y;
	boosts.push(boost);
	game.addChild(boost);
}
// --- Game update ---
game.update = function () {
	if (finished) return;
	// --- Timer ---
	gameTime += 1000 / 60;
	updateTimerDisplay();
	// --- Win condition ---
	if (gameTime >= gameDuration) {
		finished = true;
		LK.showYouWin();
		return;
	}
	// --- Boost logic ---
	if (boostActive) {
		boostTimer -= 1000 / 60;
		if (boostTimer <= 0) {
			boostActive = false;
			gameSpeed = 1;
		}
	}
	// --- Enemy spawn ---
	if (LK.ticks - lastEnemySpawnTick >= enemySpawnInterval) {
		spawnEnemy();
		lastEnemySpawnTick = LK.ticks;
	}
	// --- Update hero ---
	hero.update();
	// --- Update hero bullets ---
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var b = heroBullets[i];
		b.update();
		// Remove if off screen
		if (b.y < -b.height) {
			b.destroy();
			heroBullets.splice(i, 1);
		}
	}
	// --- Update enemies ---
	for (var i = enemies.length - 1; i >= 0; i--) {
		var e = enemies[i];
		e.update();
		// Remove if off screen
		if (e.y > 2732 + e.height) {
			e.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Check collision with hero
		if (e.alive && e.intersects(hero)) {
			// Lose a life, destroy enemy
			lives--;
			updateLivesDisplay();
			LK.getSound('hit').play();
			LK.effects.flashObject(hero, 0xff0000, 400);
			e.alive = false;
			e.destroy();
			enemies.splice(i, 1);
			// Game over?
			if (lives <= 0) {
				finished = true;
				LK.showGameOver();
				return;
			}
			continue;
		}
		// Check collision with hero bullets
		for (var j = heroBullets.length - 1; j >= 0; j--) {
			var b = heroBullets[j];
			if (e.alive && b.intersects(e)) {
				// Enemy down
				e.alive = false;
				e.destroy();
				enemies.splice(i, 1);
				b.destroy();
				heroBullets.splice(j, 1);
				score++;
				updateScoreDisplay();
				LK.getSound('enemyDown').play();
				// Win if 10 enemies killed
				if (score >= 10) {
					finished = true;
					LK.showYouWin();
					return;
				}
				// Chance to drop boost (30%)
				if (Math.random() < 0.3) {
					spawnBoost(e.x, e.y);
				}
				break;
			}
		}
	}
	// --- Update boosts ---
	for (var i = boosts.length - 1; i >= 0; i--) {
		var boost = boosts[i];
		boost.update();
		// Remove if off screen
		if (boost.y > 2732 + boost.height) {
			boost.destroy();
			boosts.splice(i, 1);
			continue;
		}
		// Check collision with hero
		if (boost.intersects(hero)) {
			// Activate speed boost
			boostActive = true;
			boostTimer = 2000; // 2 seconds
			gameSpeed = 2.2;
			LK.getSound('boost').play();
			LK.effects.flashObject(hero, 0x44e07b, 400);
			boost.destroy();
			boosts.splice(i, 1);
		}
	}
};
// --- Initial GUI update ---
updateLivesDisplay();
updateTimerDisplay();
updateScoreDisplay();

===================================================================
--- original.js
+++ change.js
@@ -290,8 +290,14 @@
 				heroBullets.splice(j, 1);
 				score++;
 				updateScoreDisplay();
 				LK.getSound('enemyDown').play();
+				// Win if 10 enemies killed
+				if (score >= 10) {
+					finished = true;
+					LK.showYouWin();
+					return;
+				}
 				// Chance to drop boost (30%)
 				if (Math.random() < 0.3) {
 					spawnBoost(e.x, e.y);
 				}