private void Shoot()
{
GeneralTransform objGeneralTransform = BulletOrigin.TransformToVisual(Application.Current.RootVisual);
Bullet bullet = new Bullet(Bullet(), 180 - ProjectoryAngle, objGeneralTransform.Transform(new Point(0, 0)), this.ImpactDamage, ttLive);
bullet.Position += BulletProjectory();
if (CollisionTargets != null)
{
bullet.AddCollisionTargets(CollisionTargets);
}
BulletEngine.Add <Bullet>(bullet);
_bulletLastFired = DateTime.Now;
}