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

/**** 
* Classes
****/ 
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 9 + Math.random() * 4.5; // Increase base speed and range
	self.health = 1;
	self.lastWasIntersecting = false;
	self.update = function () {
		// Move towards the player's current position
		self.x += self.vx;
		self.y += self.vy;
		// Check collision with player
		var isIntersecting = self.intersects(player);
		// Only deal damage if enemy collides with the white part of the player (not the headDot)
		// Since headDot is not a child, calculate its global position based on player's position and rotation
		var headDotOffset = 90; // Distance from player center to nose (approximate, based on player asset height/2 - headDot radius)
		var headDotLocalX = 0;
		var headDotLocalY = -headDotOffset;
		var sin = Math.sin(player.rotation);
		var cos = Math.cos(player.rotation);
		var headDotGlobal = {
			x: player.x + (headDotLocalX * cos - headDotLocalY * sin),
			y: player.y + (headDotLocalX * sin + headDotLocalY * cos)
		};
		var enemyGlobal = self.toGlobal({
			x: 0,
			y: 0
		});
		var dx = headDotGlobal.x - enemyGlobal.x;
		var dy = headDotGlobal.y - enemyGlobal.y;
		var distToHead = Math.sqrt(dx * dx + dy * dy);
		// The headDot has a radius of 12, so if the enemy is within 24px of the headDot center, it's hitting the head
		var isHittingHead = distToHead < 24;
		if (!self.lastWasIntersecting && isIntersecting && !isHittingHead) {
			player.takeDamage(10);
			self.destroy();
			var index = enemies.indexOf(self);
			if (index > -1) {
				enemies.splice(index, 1);
			}
		}
		self.lastWasIntersecting = isIntersecting;
		// Check if the enemy has exited the screen without colliding with the player
		if (!isIntersecting && (self.x < -self.width || self.x > 2048 + self.width || self.y < -self.height || self.y > 2732 + self.height)) {
			LK.setScore(LK.getScore() + 10);
			self.destroy();
			var index = enemies.indexOf(self);
			if (index > -1) {
				enemies.splice(index, 1);
			}
		}
	};
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health <= 0) {
			LK.getSound('explosion').play();
			LK.effects.flashObject(self, 0xFFFFFF, 100);
			self.destroy();
			var index = enemies.indexOf(self);
			if (index > -1) {
				enemies.splice(index, 1);
			}
			LK.setScore(LK.getScore() + 10);
		}
	};
	return self;
});
// Set background color
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// The headDot is not added to the player, so the red ellipse is not visible
	self.health = 100;
	self.rotation = 0;
	self.shootCooldown = 0;
	// Store targetX and targetY for movement and aiming
	self.targetX = 2048 / 2;
	self.targetY = 2732 / 2;
	self.update = function () {
		if (self.shootCooldown > 0) {
			self.shootCooldown--;
		}
		// Move player towards target position
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist > 1) {
			self.x += dx / dist * 8; // Slightly increased speed for faster movement
			self.y += dy / dist * 8; // Slightly increased speed for faster movement
		}
		// Rotate player so the head (red dot) points away from the target
		self.rotation = Math.atan2(self.targetY - self.y, self.targetX - self.x) + Math.PI / 2;
	};
	self.shoot = function () {
		// Shooting functionality removed
	};
	self.takeDamage = function (amount) {
		self.health -= 20;
		LK.getSound('damage').play();
		LK.effects.flashObject(self, 0xFF0000, 300);
		healthBarForeground.width = self.health / 100 * 400; // Update health bar width to match new size
		// Update health text
		healthText.setText(self.health);
		// Calculate the gray overlay intensity based on remaining health
		var grayIntensity = 1 - self.health / 100;
		LK.effects.flashScreen(0x808080, 300, {
			alpha: grayIntensity
		});
		if (self.health <= 0) {
			LK.effects.flashScreen(0xFF0000, 1000);
			LK.showGameOver();
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Main menu overlay
var mainMenuOverlay = new Container();
mainMenuOverlay.interactive = true;
// Add background image to menu
var menuBg = LK.getAsset('backround', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	width: 2048,
	height: 2732
});
mainMenuOverlay.addChild(menuBg);
// Add title text
var titleText = new Text2('AIR RAID', {
	size: 180,
	fill: 0xffffff,
	font: "'GillSans-Bold',Impact,'Arial Black',Tahoma"
});
titleText.anchor.set(0.5, 0.5);
titleText.x = 2048 / 2;
titleText.y = 900;
mainMenuOverlay.addChild(titleText);
// Add start button
var startButton = LK.getAsset('healthBarForeground', {
	anchorX: 0.5,
	anchorY: 0.5,
	width: 600,
	height: 160,
	x: 2048 / 2,
	y: 1400
});
mainMenuOverlay.addChild(startButton);
var startText = new Text2('START', {
	size: 100,
	fill: 0x000000,
	font: "'GillSans-Bold',Impact,'Arial Black',Tahoma"
});
startText.anchor.set(0.5, 0.5);
startText.x = 2048 / 2;
startText.y = 1400;
mainMenuOverlay.addChild(startText);
// Add overlay to game
game.addChild(mainMenuOverlay);
// Play music in menu
LK.playMusic('ss');
// Hide game elements until game starts
var gameStarted = false;
// Define player and enemies in the global scope so they are accessible everywhere
var player;
var enemies = []; // Ensure enemies is always defined as an array
var spawnTimer;
var spawnInterval;
var spawnDistance;
var aimDirection;
var score;
// Initialize isTouching to false to avoid undefined errors
if (typeof player === 'undefined' || player === null) {
	player = {};
}
player.isTouching = false;
// Define level variable in global scope so it is accessible everywhere
var level = 1;
// Start game handler
function startGame() {
	if (gameStarted) return;
	gameStarted = true;
	mainMenuOverlay.visible = false;
	// Set the background image as the game background
	var backgroundImage = LK.getAsset('backround', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0,
		width: 2048,
		height: 2732
	});
	game.addChildAt(backgroundImage, 0); // Add as the bottom-most layer
	// Always play the background music asset 'ss'
	LK.playMusic('ss');
	// Game variables
	player = new Player();
	player.x = 2048 / 2;
	player.y = 2732 / 2;
	game.addChild(player);
	enemies = [];
	spawnTimer = 0;
	level = 1;
	spawnInterval = 60;
	spawnDistance = 800;
	aimDirection = 0;
	score = 0;
	// Spawn an initial enemy at the start of the game
	spawnEnemy();
}
// Touch/click handler for start button
mainMenuOverlay.down = function (x, y, obj) {
	// Only start if touch/click is inside the start button
	var local = startButton.toLocal({
		x: x,
		y: y
	}, game);
	if (local.x >= -startButton.width / 2 && local.x <= startButton.width / 2 && local.y >= -startButton.height / 2 && local.y <= startButton.height / 2) {
		startGame();
	}
};
// Create graphical health bar
var healthBarContainer = new Container();
var healthBarBackground = LK.getAsset('healthBarBackground', {
	anchorX: 0,
	anchorY: 0
});
var healthBarForeground = LK.getAsset('healthBarForeground', {
	anchorX: 0,
	anchorY: 0
});
healthBarContainer.addChild(healthBarBackground);
healthBarContainer.addChild(healthBarForeground);
// Add text to display remaining health
var healthText = new Text2('100', {
	size: 40,
	fill: 0xFFFFFF,
	font: "'GillSans-Bold',Impact,'Arial Black',Tahoma" // Suitable font for the game
});
healthText.anchor.set(0.5, 0.5);
healthBarContainer.addChild(healthText);
healthText.x = healthBarBackground.width / 2;
healthText.y = healthBarBackground.height / 2;
healthBarForeground.anchorX = 0;
healthBarForeground.anchorY = 0;
LK.gui.topLeft.addChild(healthBarContainer);
healthBarContainer.x = 10; // Position health bar away from the left edge
healthBarContainer.y = 10; // Position health bar away from the top edge
// Create score text
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF,
	font: "'GillSans-Bold',Impact,'Arial Black',Tahoma" // Suitable font for the game
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
// Create level text
var levelText = new Text2('Level: ' + level, {
	size: 60,
	fill: 0xFFFFFF,
	font: "'GillSans-Bold',Impact,'Arial Black',Tahoma" // Suitable font for the game
});
levelText.anchor.set(1, 0);
LK.gui.topRight.addChild(levelText);
levelText.x = -10; // Position level text away from the right edge
// Handle touch/click input for aiming and shooting
game.down = function (x, y, obj) {
	// Set target position for player to move towards and rotate head to this position
	player.targetX = x;
	player.targetY = y;
	// Mark that the player is being controlled
	player.isTouching = true;
};
game.move = function (x, y, obj) {
	// If the player is being touched/dragged, update the target position continuously
	if (player.isTouching) {
		player.targetX = x;
		player.targetY = y;
	}
};
game.up = function (x, y, obj) {
	// Stop continuous control when touch/click is released
	player.isTouching = false;
};
// Spawn enemy at random position around the player
function spawnEnemy() {
	var enemy;
	enemy = new Enemy();
	// Randomly choose an edge of the screen to spawn the enemy
	var edge = Math.floor(Math.random() * 4);
	switch (edge) {
		case 0:
			// Top edge
			enemy.x = Math.random() * 2048;
			enemy.y = -enemy.height;
			break;
		case 1:
			// Right edge
			enemy.x = 2048 + enemy.width;
			enemy.y = Math.random() * 2732;
			break;
		case 2:
			// Bottom edge
			enemy.x = Math.random() * 2048;
			enemy.y = 2732 + enemy.height;
			break;
		case 3:
			// Left edge
			enemy.x = -enemy.width;
			enemy.y = Math.random() * 2732;
			break;
	}
	// Calculate direction towards player
	var dx = player.x - enemy.x;
	var dy = player.y - enemy.y;
	var dist = Math.sqrt(dx * dx + dy * dy);
	enemy.vx = dx / dist * (enemy.speed + level * 0.5);
	enemy.vy = dy / dist * (enemy.speed + level * 0.5);
	// Rotate enemy to face the player with its sharp edge
	enemy.rotation = Math.atan2(dy, dx);
	game.addChild(enemy);
	enemies.push(enemy);
	// Increase difficulty
	if (spawnInterval > 30) {
		spawnInterval -= 0.5;
	}
}
// Game update loop
game.update = function () {
	// Update player
	if (typeof player !== 'undefined' && player !== null && typeof player.update === 'function') {
		player.update();
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].update();
		// Add animation to enemy
		if (typeof enemies[i] !== 'undefined' && typeof enemies[i].rotation !== 'undefined') {
			tween(enemies[i], {
				rotation: enemies[i].rotation + Math.PI * 2
			}, {
				duration: 2000,
				easing: tween.easeInOut
			});
		}
	}
	// Spawn enemies
	spawnTimer++;
	if (spawnTimer >= spawnInterval) {
		spawnEnemy();
		spawnTimer = 0;
	}
	// Update score and level display
	scoreText.setText('Score: ' + LK.getScore());
	levelText.setText('Level: ' + level);
	// Increase level every 30 points
	if (LK.getScore() >= level * 30) {
		level++;
		levelText.setText('Level: ' + level);
		// Play level up sound
		LK.getSound('levelUp').play();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -351,9 +351,9 @@
 }
 // Game update loop
 game.update = function () {
 	// Update player
-	if (typeof player !== 'undefined' && player !== null) {
+	if (typeof player !== 'undefined' && player !== null && typeof player.update === 'function') {
 		player.update();
 	}
 	// Update enemies
 	for (var i = enemies.length - 1; i >= 0; i--) {