/**** 
* Classes
****/ 
var Arrow = Container.expand(function (target) {
	var self = Container.call(this);
	var arrowGraphics = self.attachAsset('arrow', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 18;
	self.angle = 0;
	self.target = target;
	self.lastX = self.x;
	self.lastY = self.y;
	self._move_migrated = function () {
		// Move in the direction of angle
		self.lastX = self.x;
		self.lastY = self.y;
		self.x += self.speed * Math.cos(self.angle);
		self.y += self.speed * Math.sin(self.angle);
		self.rotation = self.angle;
	};
	return self;
});
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 20;
	self._move_migrated = function () {
		self.x += self.speed * Math.cos(self.angle);
		self.y += self.speed * Math.sin(self.angle);
		self.rotation += 0.1;
	};
});
var Enemy = Container.expand(function (hero) {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 2; // Enemy needs 2 hits to die
	self._move_migrated = function () {
		var dx = hero.x - self.x;
		var dy = hero.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		self.x += dx / distance * 1.8;
		self.y += dy / distance * 1.8;
	};
});
var Enemy2 = Container.expand(function (hero) {
	var self = Container.call(this);
	var enemy2Graphics = self.attachAsset('enemy2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 3; // Enemy2 needs 3 hits to die
	self._move_migrated = function () {
		var dx = hero.x - self.x;
		var dy = hero.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		self.x += dx / distance * 1.25;
		self.y += dy / distance * 1.25;
	};
});
var Enemy3 = Container.expand(function (hero) {
	var self = Container.call(this);
	var enemy3Graphics = self.attachAsset('enemy3', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 4; // Enemy3 needs 4 hits to die
	self.arrowCooldown = 0;
	self._move_migrated = function () {
		var dx = hero.x - self.x;
		var dy = hero.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		self.x += dx / distance * 2.5;
		self.y += dy / distance * 2.5;
		// Arrow attack logic
		if (distance > 400) {
			// Only shoot if at a distance
			if (self.arrowCooldown <= 0) {
				var arrow = new Arrow(hero);
				arrow.x = self.x;
				arrow.y = self.y;
				arrow.angle = Math.atan2(hero.y - self.y, hero.x - self.x);
				enemyBullets.push(arrow);
				game.addChild(arrow);
				self.arrowCooldown = 60 + Math.floor(Math.random() * 60); // 1-2 seconds between shots
			}
		}
		if (self.arrowCooldown > 0) {
			self.arrowCooldown--;
		}
	};
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self._move_migrated = function () {
		if (self.targetPos) {
			var dx = self.targetPos.x - self.x;
			var dy = self.targetPos.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 5) {
				self.x += dx / distance * 10;
				self.y += dy / distance * 10;
			} else {
				self.x = self.targetPos.x;
				self.y = self.targetPos.y;
				self.targetPos = null;
			}
		}
	};
});

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

/**** 
* Game Code
****/ 
// You should replace id with a unique asset for enemy2
game.setBackgroundColor(0x008000);
var hero = game.addChild(new Hero());
hero.enemies = [];
var heroBullets = [];
var enemyBullets = [];
hero.x = 2048 / 2;
hero.y = 2732 / 2;
game.targetPos = null;
game.on('down', function (x, y, obj) {
	hero.targetPos = game.toLocal(obj.global);
});
var spawnEnemy = function spawnEnemy() {
	var side = Math.floor(Math.random() * 4);
	var enemy;
	var rand = Math.random();
	if (rand < 0.4) {
		enemy = new Enemy(hero);
	} else if (rand < 0.8) {
		enemy = new Enemy2(hero);
	} else {
		enemy = new Enemy3(hero);
	}
	switch (side) {
		case 0:
			enemy.x = Math.random() * 2048;
			enemy.y = 0;
			break;
		case 1:
			enemy.x = 2048;
			enemy.y = Math.random() * 2732;
			break;
		case 2:
			enemy.x = Math.random() * 2048;
			enemy.y = 2732;
			break;
		case 3:
			enemy.x = 0;
			enemy.y = Math.random() * 2732;
			break;
	}
	hero.enemies.push(enemy);
	game.addChild(enemy);
};
LK.on('tick', function () {
	hero._move_migrated();
	for (var i = 0; i < heroBullets.length; i++) {
		heroBullets[i]._move_migrated();
	}
	for (var i = 0; i < enemyBullets.length; i++) {
		enemyBullets[i]._move_migrated();
	}
	// Track arrow hits on hero
	if (typeof hero.arrowHits === "undefined") {
		hero.arrowHits = 0;
	}
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		if (enemyBullets[i].intersects(hero)) {
			enemyBullets[i].destroy();
			enemyBullets.splice(i, 1);
			hero.arrowHits++;
			if (hero.arrowHits >= 10) {
				LK.showGameOver();
			}
		}
	}
	// Track Enemy2 kills for arrow reset
	if (typeof hero.enemy2Kills === "undefined") {
		hero.enemy2Kills = 0;
	}
	// Track total kills for bullet upgrades
	if (typeof hero.totalKills === "undefined") {
		hero.totalKills = 0;
	}
	for (var i = 0; i < hero.enemies.length; i++) {
		hero.enemies[i]._move_migrated();
		for (var j = 0; j < heroBullets.length; j++) {
			if (heroBullets[j].intersects(hero.enemies[i])) {
				heroBullets[j].destroy();
				heroBullets.splice(j, 1);
				if (typeof hero.enemies[i].health === "number") {
					hero.enemies[i].health--;
					if (hero.enemies[i].health <= 0) {
						// Check if this is an Enemy2
						if (hero.enemies[i].attachAsset && hero.enemies[i].attachAsset.toString().indexOf("enemy2") !== -1) {
							hero.enemy2Kills++;
							if (hero.enemy2Kills >= 3) {
								hero.arrowHits = 0;
								hero.enemy2Kills = 0;
							}
						}
						hero.totalKills++; // Increment total kills
						hero.enemies[i].destroy();
						hero.enemies.splice(i, 1);
						i--;
						j--;
						break;
					}
				} else {
					// fallback: destroy if no health property
					hero.enemies[i].destroy();
					hero.enemies.splice(i, 1);
					i--;
					j--;
					break;
				}
			}
		}
		if (hero.intersects(hero.enemies[i])) {
			LK.showGameOver();
		}
	}
	if (LK.ticks % 30 === 0) {
		spawnEnemy();
	}
	if (LK.ticks % 20 === 0 && hero.enemies.length > 0) {
		// Find the closest enemy
		var closestEnemy = null;
		var minDist = Infinity;
		for (var i = 0; i < hero.enemies.length; i++) {
			var dx = hero.enemies[i].x - hero.x;
			var dy = hero.enemies[i].y - hero.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist < minDist) {
				minDist = dist;
				closestEnemy = hero.enemies[i];
			}
		}
		if (closestEnemy) {
			// Always fire the main bullet
			var bullet = new Bullet();
			bullet.x = hero.x;
			bullet.y = hero.y;
			var dx = closestEnemy.x - hero.x;
			var dy = closestEnemy.y - hero.y;
			bullet.angle = Math.atan2(dy, dx);
			heroBullets.push(bullet);
			game.addChild(bullet);
			// After 5 kills, fire a second bullet with a slight delay
			if (hero.totalKills >= 5) {
				LK.setTimeout(function () {
					if (!hero || !closestEnemy) return;
					var bullet2 = new Bullet();
					bullet2.x = hero.x;
					bullet2.y = hero.y;
					var dx2 = closestEnemy.x - hero.x;
					var dy2 = closestEnemy.y - hero.y;
					bullet2.angle = Math.atan2(dy2, dx2);
					heroBullets.push(bullet2);
					game.addChild(bullet2);
				}, 120); // ~2 frames later
			}
			// After 25 kills, fire a third bullet in the opposite direction
			if (hero.totalKills >= 25) {
				var bullet3 = new Bullet();
				bullet3.x = hero.x;
				bullet3.y = hero.y;
				// Opposite direction
				bullet3.angle = Math.atan2(dy, dx) + Math.PI;
				heroBullets.push(bullet3);
				game.addChild(bullet3);
			}
		}
	}
});