void SimpleFire()
{
UseEnergy(simpleCost);
GameObject bullet = factory.Spawn(FactoryManager.ProductType.playerBullet);
PlayerBullet playerBullet = bullet.GetComponent <PlayerBullet>();
Vector2 bulletPosition = new Vector2(transform.position.x, transform.position.y);
playerBullet.SetBulletType(bulletType);
playerBullet.Init(damage, speed, Vector2.right, bulletPosition);
}
void SpiralFire()
{
UseEnergy(spiralCost);
for (int i = 0; i < 4; i++)
{
GameObject bullet = factory.Spawn(FactoryManager.ProductType.playerBullet);
PlayerBullet playerBullet = bullet.GetComponent <PlayerBullet>();
Vector2 bulletPosition = new Vector2(transform.position.x, transform.position.y);
playerBullet.SetBulletType(bulletType);
playerBullet.Init(damage, speed, Rotate(Vector2.right, i * Mathf.PI / 2), bulletPosition);
}
}