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

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bobOffset = Math.random() * Math.PI * 2;
	self.initialY = 0;
	self.update = function () {
		if (self.initialY === 0) {
			self.initialY = self.y;
		}
		// Bobbing animation
		self.y = self.initialY + Math.sin(LK.ticks * 0.1 + self.bobOffset) * 10;
		// Check collection by knight
		if (knight && self.intersects(knight)) {
			self.collect();
		}
	};
	self.collect = function () {
		LK.getSound('coinCollect').play();
		LK.setScore(LK.getScore() + 5);
		scoreText.setText('Score: ' + LK.getScore());
		// Remove from coins array
		for (var i = coins.length - 1; i >= 0; i--) {
			if (coins[i] === self) {
				coins.splice(i, 1);
				break;
			}
		}
		self.destroy();
	};
	return self;
});
// Game arrays to track objects
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.health = 100;
	self.maxHealth = 100;
	self.speed = 1;
	self.lastX = 0;
	self.update = function () {
		// Move towards knight
		if (knight) {
			var dx = knight.x - self.x;
			if (Math.abs(dx) > 5) {
				self.x += dx > 0 ? self.speed : -self.speed;
			}
		}
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		// Flash red when hit
		LK.effects.flashObject(self, 0xFF0000, 200);
		if (self.health <= 0) {
			self.die();
		}
	};
	self.die = function () {
		// Drop coin
		var coin = game.addChild(new Coin());
		coin.x = self.x;
		coin.y = self.y - 50;
		// Add experience to knight
		knight.gainExperience(25);
		// Remove from enemies array
		for (var i = enemies.length - 1; i >= 0; i--) {
			if (enemies[i] === self) {
				enemies.splice(i, 1);
				break;
			}
		}
		self.destroy();
		LK.setScore(LK.getScore() + 10);
		scoreText.setText('Score: ' + LK.getScore());
	};
	return self;
});
var Knight = Container.expand(function () {
	var self = Container.call(this);
	var knightGraphics = self.attachAsset('knight', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.attackCooldown = 0;
	self.level = 1;
	self.experience = 0;
	self.update = function () {
		if (self.attackCooldown > 0) {
			self.attackCooldown--;
		}
	};
	self.attack = function () {
		if (self.attackCooldown <= 0) {
			// Create sword swing effect
			var sword = game.addChild(LK.getAsset('sword', {
				anchorX: 0.5,
				anchorY: 1.0,
				x: self.x + 50,
				y: self.y - 60,
				rotation: Math.PI / 4
			}));
			// Animate sword swing
			tween.to(sword, 200, {
				rotation: -Math.PI / 4
			}).onComplete(function () {
				sword.destroy();
			});
			self.attackCooldown = 30; // 0.5 seconds at 60fps
			LK.getSound('swordHit').play();
			return true;
		}
		return false;
	};
	self.gainExperience = function (amount) {
		self.experience += amount;
		var expNeeded = self.level * 100;
		if (self.experience >= expNeeded) {
			self.levelUp();
		}
	};
	self.levelUp = function () {
		self.level++;
		self.experience = 0;
		// Visual level up effect
		LK.effects.flashObject(self, 0xFFD700, 500);
		levelText.setText('Level: ' + self.level);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2F4F2F // Dark forest green for medieval atmosphere
});

/**** 
* Game Code
****/ 
// Game arrays to track objects
var enemies = [];
var coins = [];
// Create castle background
var castle = game.addChild(LK.getAsset('castle', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 2048 / 2,
	y: 2732 - 200
}));
// Create knight
var knight = game.addChild(new Knight());
knight.x = 2048 / 2;
knight.y = 2732 - 250;
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFD700
});
scoreText.anchor.set(0, 0);
LK.gui.topRight.addChild(scoreText);
scoreText.x = -20;
scoreText.y = 20;
var levelText = new Text2('Level: 1', {
	size: 60,
	fill: 0xFFFFFF
});
levelText.anchor.set(0, 0);
LK.gui.topRight.addChild(levelText);
levelText.x = -20;
levelText.y = 110;
var tapText = new Text2('TAP TO ATTACK!', {
	size: 100,
	fill: 0xFF6B6B
});
tapText.anchor.set(0.5, 0.5);
LK.gui.center.addChild(tapText);
tapText.y = -200;
// Enemy spawning variables
var enemySpawnTimer = 0;
var enemySpawnRate = 180; // 3 seconds at 60fps
// Game input handling
game.down = function (x, y, obj) {
	// Knight attacks when player taps
	knight.attack();
	// Check if attack hits any enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		var distance = Math.abs(enemy.x - knight.x);
		if (distance < 100) {
			// Attack range
			enemy.takeDamage(50);
		}
	}
};
// Main game update loop
game.update = function () {
	// Spawn enemies
	enemySpawnTimer++;
	if (enemySpawnTimer >= enemySpawnRate) {
		enemySpawnTimer = 0;
		var enemy = game.addChild(new Enemy());
		enemy.x = Math.random() < 0.5 ? -50 : 2048 + 50; // Spawn from left or right
		enemy.y = 2732 - 250;
		enemy.lastX = enemy.x;
		enemies.push(enemy);
		// Increase difficulty over time
		if (enemySpawnRate > 60) {
			enemySpawnRate -= 2;
		}
	}
	// Check enemy-knight collisions
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (enemy.intersects(knight)) {
			// Game over when enemy reaches knight
			LK.effects.flashScreen(0xFF0000, 1000);
			LK.showGameOver();
			break;
		}
	}
	// Make tap text pulse
	var pulse = 1 + Math.sin(LK.ticks * 0.1) * 0.2;
	tapText.scale.set(pulse, pulse);
};
// Start medieval music
LK.playMusic('medievalTheme');