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

/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletSprite = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = bulletSprite.width * 0.5;
	self.speed = 32;
	self.dx = 0;
	self.dy = 0;
	self.update = function () {
		self.x += self.dx * self.speed;
		self.y += self.dy * self.speed;
		// Rotate bullet sprite to face its movement direction
		if (self.dx !== 0 || self.dy !== 0) {
			bulletSprite.rotation = Math.atan2(self.dy, self.dx);
		}
	};
	return self;
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemySprite = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = enemySprite.width * 0.5;
	self.speed = 2 + Math.random() * 1.2;
	self.hp = 2;
	self.target = null; // set to player
	self.update = function () {
		if (!self.target) return;
		var dx = self.target.x - self.x;
		var dy = self.target.y - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist > 0) {
			self.x += dx / dist * self.speed;
			self.y += dy / dist * self.speed;
		}
	};
	self.hit = function () {
		self.hp--;
		LK.getSound('enemyhit').play();
		LK.effects.flashObject(self, 0xffffff, 120);
		if (self.hp <= 0) {
			self.destroyed = true;
		}
	};
	return self;
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerSprite = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = playerSprite.width * 0.5;
	self.speed = 18;
	self.hp = 5;
	self.invuln = 0; // frames of invulnerability after hit
	// For upgrades
	self.fireRate = 60; // frames between shots (1 saniye)
	self.bulletSpeed = 32;
	self.bulletSpread = 0; // degrees
	self.lastShot = 0;
	self.update = function () {
		if (self.invuln > 0) {
			self.invuln--;
			playerSprite.alpha = 0.5 + 0.5 * Math.sin(LK.ticks * 0.4);
		} else {
			playerSprite.alpha = 1;
		}
	};
	// Called when player is hit
	self.hit = function () {
		if (self.invuln > 0) return;
		self.hp--;
		self.invuln = 60;
		LK.effects.flashObject(self, 0xff0000, 400);
		LK.getSound('playerhit').play();
		updateHpText();
		if (self.hp <= 0) {
			LK.effects.flashScreen(0xff0000, 1200);
			LK.showGameOver();
		}
	};
	// Called when player picks up a powerup
	self.applyPowerup = function (type) {
		if (type === 'firerate') {
			self.fireRate = Math.max(8, self.fireRate - 4);
		} else if (type === 'spread') {
			self.bulletSpread = Math.min(30, self.bulletSpread + 10);
		} else if (type === 'hp') {
			self.hp = Math.min(8, self.hp + 1);
			updateHpText();
		} else if (type === 'bulletspeed') {
			self.bulletSpeed = Math.min(48, self.bulletSpeed + 4);
		}
	};
	return self;
});
// Powerup class
var Powerup = Container.expand(function () {
	var self = Container.call(this);
	var powerupSprite = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = powerupSprite.width * 0.5;
	self.type = 'firerate'; // default, can be changed
	self.update = function () {};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x7c3f1c
});

/**** 
* Game Code
****/ 
// Add background
// Play button and cover logic
var coverBg = LK.getAsset('Playbg', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
game.addChild(coverBg);
// Create Play button as a container with Playbg as background
var playBtn = new Container();
var playBgSprite = LK.getAsset('Playbg', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 0,
	y: 0
});
playBtn.addChild(playBgSprite);
var playText = new Text2('PLAY', {
	size: 200,
	fill: "#fff",
	font: "Impact, Arial Black, Tahoma"
});
playText.anchor.set(0.5, 0.5);
playText.x = 0;
playText.y = 0;
playBtn.addChild(playText);
playBtn.x = 2048 / 2;
playBtn.y = 2732 / 2 + 300;
playBtn.interactive = true;
playBtn.buttonMode = true;
game.addChild(playBtn);
// Hide all gameplay and GUI until play button is pressed
var gameStarted = false;
// GUI
var scoreTxt = new Text2('Score: 0', {
	size: 90,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var timerTxt = new Text2('20:00', {
	size: 90,
	fill: "#fff"
});
timerTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(timerTxt);
var hpTxt = new Text2('HP: 5', {
	size: 90,
	fill: "#fff"
});
hpTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(hpTxt);
// Hide GUI elements until game starts
scoreTxt.visible = false;
timerTxt.visible = false;
hpTxt.visible = false;
// Play button event
playBtn.down = function (x, y, obj) {
	// Remove cover and play button
	coverBg.visible = false;
	playBtn.visible = false;
	gameStarted = true;
	// Show GUI
	scoreTxt.visible = true;
	timerTxt.visible = true;
	hpTxt.visible = true;
	// Add main background
	var marsbg = LK.getAsset('marsbg', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	game.addChild(marsbg);
	// Spawn player in center
	player = new Player();
	player.x = 2048 / 2;
	player.y = 2732 / 2;
	game.addChild(player);
	// Start music
	LK.playMusic('marsmusic');
	// Initial GUI update
	updateScoreText();
	updateTimerText();
	updateHpText();
	// Oyun başında ilk düşmanı doğur
	spawnEnemy();
	lastEnemySpawn = LK.ticks;
};
// Game variables
var player;
var enemies = [];
var bullets = [];
var powerups = [];
var dragNode = null;
var lastMoveX = 0,
	lastMoveY = 0;
var score = 0;
var timeLeft = 20 * 60; // 20 minutes in seconds, but we use frames (20*60*60)
var timerFrames = 20 * 60 * 60; // 20 minutes * 60 seconds * 60 frames
var lastEnemySpawn = 0;
var enemySpawnInterval = 120; // 2 saniye * 60 fps = 120 frame (daha hızlı başlasın)
var lastPowerupSpawn = 0;
var powerupInterval = 600; // every 10 seconds (10*60)
// GUI
var scoreTxt = new Text2('Score: 0', {
	size: 90,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var timerTxt = new Text2('20:00', {
	size: 90,
	fill: "#fff"
});
timerTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(timerTxt);
var hpTxt = new Text2('HP: 5', {
	size: 90,
	fill: "#fff"
});
hpTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(hpTxt);
function updateScoreText() {
	scoreTxt.setText('Score: ' + score);
}
function updateTimerText() {
	var seconds = Math.floor(timerFrames / 60);
	var min = Math.floor(seconds / 60);
	var sec = seconds % 60;
	var t = (min < 10 ? '0' : '') + min + ':' + (sec < 10 ? '0' : '') + sec;
	timerTxt.setText(t);
}
function updateHpText() {
	if (player) hpTxt.setText('HP: ' + player.hp);
}
// (Player, music, and first enemy spawn are now handled in playBtn.down)
// Move handler (drag to move player)
function handleMove(x, y, obj) {
	if (!gameStarted) return;
	if (dragNode) {
		// Clamp to game area
		var px = Math.max(player.radius, Math.min(2048 - player.radius, x));
		var py = Math.max(player.radius, Math.min(2732 - player.radius, y));
		dragNode.x = px;
		dragNode.y = py;
		lastMoveX = px;
		lastMoveY = py;
		// Ateş yönünü güncelle (basılı tutarken)
		if (isFiring) {
			var dx = x - player.x;
			var dy = y - player.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist > 0) {
				fireDirection.dx = dx / dist;
				fireDirection.dy = dy / dist;
			}
		}
	}
}
game.move = handleMove;
var isFiring = false;
var fireDirection = {
	dx: 0,
	dy: -1
}; // Varsayılan yukarı
game.down = function (x, y, obj) {
	if (!gameStarted) return;
	// Sadece karakterin üstüne basılı tutulduğunda karakteri hareket ettir
	var dx = x - player.x;
	var dy = y - player.y;
	var dist = Math.sqrt(dx * dx + dy * dy);
	// Eğer dokunulan nokta karakterin üstündeyse (yarıçap dahil)
	if (dist <= player.radius) {
		dragNode = player;
		handleMove(x, y, obj);
		isFiring = false; // karakteri hareket ettirirken ateş etme
	} else if (x > 100 || y > 100) {
		// Karakterin dışında bir yere basıldıysa ateş et
		isFiring = true;
		// Ateş yönünü belirle
		if (dist > 0) {
			fireDirection.dx = dx / dist;
			fireDirection.dy = dy / dist;
		} else {
			fireDirection.dx = 0;
			fireDirection.dy = -1;
		}
		// Hemen ateş et
		fireBullets();
	}
};
game.up = function (x, y, obj) {
	if (!gameStarted) return;
	dragNode = null;
	isFiring = false;
};
// Fire bullets when called (manual fire)
function fireBullets() {
	if (LK.ticks - player.lastShot < player.fireRate) return;
	player.lastShot = LK.ticks;
	var spread = player.bulletSpread;
	var angles = [0];
	if (spread > 0) {
		angles = [-spread, 0, spread];
	}
	for (var i = 0; i < angles.length; i++) {
		var baseAngle = Math.atan2(fireDirection.dy, fireDirection.dx);
		var angle = baseAngle + angles[i] * Math.PI / 180;
		var b = new Bullet();
		b.x = player.x;
		b.y = player.y;
		b.speed = player.bulletSpeed;
		b.dx = Math.cos(angle);
		b.dy = Math.sin(angle);
		bullets.push(b);
		game.addChild(b);
	}
	LK.getSound('shoot').play();
}
// Spawn enemies at random edge
function spawnEnemy() {
	var e = new Enemy();
	// Pick random edge
	var edge = Math.floor(Math.random() * 4);
	var ex, ey;
	if (edge === 0) {
		// top
		ex = Math.random() * 2048;
		ey = -e.radius - 10;
	} else if (edge === 1) {
		// right
		ex = 2048 + e.radius + 10;
		ey = Math.random() * 2732;
	} else if (edge === 2) {
		// bottom
		ex = Math.random() * 2048;
		ey = 2732 + e.radius + 10;
	} else {
		// left
		ex = -e.radius - 10;
		ey = Math.random() * 2732;
	}
	e.x = ex;
	e.y = ey;
	e.target = player;
	enemies.push(e);
	game.addChild(e);
}
// Spawn powerup at random location
function spawnPowerup() {
	var p = new Powerup();
	p.type = 'hp'; // Sadece hp powerup
	p.x = 200 + Math.random() * (2048 - 400);
	p.y = 200 + Math.random() * (2732 - 400);
	powerups.push(p);
	game.addChild(p);
}
// Main update loop
game.update = function () {
	if (!gameStarted) return;
	// Timer
	if (timerFrames > 0) {
		timerFrames--;
		updateTimerText();
	}
	if (timerFrames === 0) {
		LK.effects.flashScreen(0x00ff00, 1200);
		LK.showYouWin();
		return;
	}
	// Player update
	player.update();
	// Fire bullets only every 3 seconds (180 frames)
	if (typeof lastAllowedFire === "undefined") {
		lastAllowedFire = 0;
	}
	// Fire bullets only if player is pressing (isFiring)
	// If there is at least one enemy, auto-fire at the nearest enemy
	if (enemies.length > 0) {
		// Find nearest enemy
		var nearest = null;
		var minDist = Infinity;
		for (var i = 0; i < enemies.length; i++) {
			var e = enemies[i];
			var dx = e.x - player.x;
			var dy = e.y - player.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < minDist) {
				minDist = dist;
				nearest = e;
			}
		}
		if (nearest) {
			// Set fire direction toward nearest enemy
			var dx = nearest.x - player.x;
			var dy = nearest.y - player.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist > 0) {
				fireDirection.dx = dx / dist;
				fireDirection.dy = dy / dist;
			} else {
				fireDirection.dx = 0;
				fireDirection.dy = -1;
			}
			if (LK.ticks - lastAllowedFire >= 90) {
				fireBullets();
				lastAllowedFire = LK.ticks;
			}
		}
	} else if (isFiring) {
		if (LK.ticks - lastAllowedFire >= 90) {
			fireBullets();
			lastAllowedFire = LK.ticks;
		}
	}
	// Bullets update
	for (var i = bullets.length - 1; i >= 0; i--) {
		var b = bullets[i];
		b.update();
		// Remove if off screen
		if (b.x < -60 || b.x > 2048 + 60 || b.y < -60 || b.y > 2732 + 60) {
			b.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check collision with enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			var e = enemies[j];
			var dx = b.x - e.x;
			var dy = b.y - e.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < b.radius + e.radius) {
				e.hp = 1; // 1 mermi 1 düşman öldürsün
				e.hit();
				if (e.hp <= 0) {
					e.destroy();
					enemies.splice(j, 1);
					score += 10;
					updateScoreText();
				}
				b.destroy();
				bullets.splice(i, 1);
				break;
			}
		}
	}
	// Enemies update
	for (var i = enemies.length - 1; i >= 0; i--) {
		var e = enemies[i];
		e.update();
		// Check collision with player
		var dx = e.x - player.x;
		var dy = e.y - player.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist < e.radius + player.radius) {
			player.hit();
			e.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Remove if off screen (shouldn't happen, but just in case)
		if (e.x < -200 || e.x > 2048 + 200 || e.y < -200 || e.y > 2732 + 200) {
			e.destroy();
			enemies.splice(i, 1);
		}
	}
	// Powerups update
	for (var i = powerups.length - 1; i >= 0; i--) {
		var p = powerups[i];
		// Check collision with player
		var dx = p.x - player.x;
		var dy = p.y - player.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist < p.radius + player.radius) {
			player.applyPowerup(p.type);
			LK.getSound('powerup').play();
			p.destroy();
			powerups.splice(i, 1);
			continue;
		}
	}
	// Enemy spawn logic (increase spawn rate over time)
	// Düşman sadece 5 saniyede bir tane doğsun ve sayısı 10 saniyede bir artsın
	if (typeof enemyPerSpawn === "undefined") {
		enemyPerSpawn = 1;
		lastEnemyPerSpawnIncrease = LK.ticks;
	}
	if (LK.ticks - lastEnemyPerSpawnIncrease >= 600) {
		// 10 saniye = 10*60 = 600 frame
		enemyPerSpawn += 1;
		lastEnemyPerSpawnIncrease += 600; // Artışı tam 10 saniyede bir yap
	}
	// Her 5 saniyede bir (300 frame) sadece enemyPerSpawn kadar düşman doğur
	if (LK.ticks - lastEnemySpawn >= 300) {
		for (var i = 0; i < enemyPerSpawn; i++) {
			spawnEnemy();
		}
		lastEnemySpawn = LK.ticks;
	}
	// Powerup spawn logic
	if (LK.ticks - lastPowerupSpawn > powerupInterval) {
		spawnPowerup();
		lastPowerupSpawn = LK.ticks;
	}
};
// (Initial GUI update and enemy spawn are now handled in playBtn.down)

===================================================================
--- original.js
+++ change.js
@@ -164,9 +164,9 @@
 playBtn.y = 2732 / 2 + 300;
 playBtn.interactive = true;
 playBtn.buttonMode = true;
 game.addChild(playBtn);
-// Hide game UI and logic until play is pressed
+// Hide all gameplay and GUI until play button is pressed
 var gameStarted = false;
 // GUI
 var scoreTxt = new Text2('Score: 0', {
 	size: 90,