public static ProjectileBase CreateProjectile(GameObject prefab, Vector3 _spawnPos, Vector3 _euler, Vector3 _targetPos, GameObject _owner)
{
ProjectileBase instance = Instantiate <GameObject>(prefab).GetComponent <ProjectileBase>();
instance.transform.position = _spawnPos;
instance.transform.eulerAngles = _euler;
float s = instance.speed;
instance.SetTargetPosition(_targetPos, s, s, s);
instance.SetOwner(_owner);
return(instance);
}