/**** 
* 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);
		if (!self.lastWasIntersecting && isIntersecting) {
			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
	});
	self.health = 100;
	self.rotation = 0;
	self.shootCooldown = 0;
	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 * 7; // Increase speed for faster movement
			self.y += dy / dist * 7; // Increase speed for faster movement
		}
	};
	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
****/ 
// Update player
game.setBackgroundColor(0x2c3e50);
// Game variables
var player;
var enemies = [];
var spawnTimer = 0;
var level = 1;
// Removed duplicate initialization of levelText
var spawnInterval = 60; // Decrease interval for more frequent spawns
var spawnDistance = 800; // Distance from center to spawn enemies
var aimDirection = 0;
var score = 0;
// Create player in center of screen
player = new Player();
player.x = 2048 / 2;
player.y = 2732 / 2;
game.addChild(player);
// Spawn an initial enemy at the start of the game
spawnEnemy();
// 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
});
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
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
// Create level text
var levelText = new Text2('Level: ' + level, {
	size: 60,
	fill: 0xFFFFFF
});
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
	player.targetX = x;
	player.targetY = y;
};
game.move = function (x, y, obj) {
	// No movement logic needed here
};
game.up = function (x, y, obj) {
	// Could add additional logic here
};
// 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 round part
	enemy.rotation = Math.atan2(dy, dx) + Math.PI;
	game.addChild(enemy);
	enemies.push(enemy);
	// Increase difficulty
	if (spawnInterval > 30) {
		spawnInterval -= 0.5;
	}
}
// Game update loop
game.update = function () {
	// Update player
	player.update();
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].update();
		// Add animation to enemy
		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();
	}
};