public void Update_SINGLE()
{
//const double SIZE = 800;
const double SIZE = 3000;
const double HALF = SIZE / 2;
if (_visual == null)
{
#region Create
_visual = new StarfieldVisual1(SIZE, 10, 1, 1);
Canvas.SetLeft(_visual, (_canvas.ActualWidth / 2) - HALF);
Canvas.SetTop(_visual, (_canvas.ActualHeight / 2) - HALF);
_canvas.Children.Add(_visual);
#endregion
}
TransformGroup transform = new TransformGroup();
#region Translate
Point3D position = _player.Ship.PositionWorld;
transform.Children.Add(new TranslateTransform(-position.X, position.Y)); // don't need to negate Y, because it's already backward
#endregion
#region Rotate
Vector3D desiredUp = new Vector3D(0, -1, 0);
Vector3D up = _player.Ship.PhysicsBody.DirectionToWorld(desiredUp);
double angle = Vector.AngleBetween(desiredUp.ToVector2D(), up.ToVector2D());
transform.Children.Add(new RotateTransform(angle, HALF, HALF));
#endregion
_visual.RenderTransform = transform;
}
public void Update_SINGLE()
{
//const double SIZE = 800;
const double SIZE = 3000;
const double HALF = SIZE / 2;
if (_visual == null)
{
#region Create
_visual = new StarfieldVisual1(SIZE, 10, 1, 1);
Canvas.SetLeft(_visual, (_canvas.ActualWidth / 2) - HALF);
Canvas.SetTop(_visual, (_canvas.ActualHeight / 2) - HALF);
_canvas.Children.Add(_visual);
#endregion
}
TransformGroup transform = new TransformGroup();
#region Translate
Point3D position = _player.Ship.PositionWorld;
transform.Children.Add(new TranslateTransform(-position.X, position.Y)); // don't need to negate Y, because it's already backward
#endregion
#region Rotate
Vector3D desiredUp = new Vector3D(0, -1, 0);
Vector3D up = _player.Ship.PhysicsBody.DirectionToWorld(desiredUp);
double angle = Vector.AngleBetween(desiredUp.ToVector2D(), up.ToVector2D());
transform.Children.Add(new RotateTransform(angle, HALF, HALF));
#endregion
_visual.RenderTransform = transform;
}