private BindingVector3 Raycast(FRay ray, WCamera camera)
{
BindingVector3 selected_vec = null;
List <BindingVector3> vecs_to_raycast = GetCameraVectorProperties();
List <Tuple <float, BindingVector3> > results = new List <Tuple <float, BindingVector3> >();
foreach (BindingVector3 bv in vecs_to_raycast)
{
FPlane plane = new FPlane(ray.Direction.Normalized(), bv.BackingVector);
float dist = float.MaxValue;
plane.RayIntersectsPlane(ray, out dist);
Vector3 plane_intersect_point = camera.Transform.Position + (plane.Normal * dist);
float distance_from_billboard_center = (plane_intersect_point - bv.BackingVector).Length;
if (distance_from_billboard_center < 50.0f)
{
float point_dist = (camera.Transform.Position - bv.BackingVector).Length;
results.Add(new Tuple <float, BindingVector3>(point_dist, bv));
}
}
results.Sort(delegate(Tuple <float, BindingVector3> x, Tuple <float, BindingVector3> y)
{
return(x.Item1.CompareTo(y.Item1));
});
if (results.Count > 0)
{
selected_vec = results[0].Item2;
}
return(selected_vec);
}
public void Update(WSceneView view)
{
m_View = view;
UpdateSelectionGizmo(view);
// Add our gizmo to the renderer this frame.
if (TransformGizmo != null)
{
((IRenderable)TransformGizmo).AddToRenderer(view);
}
// If we have a gizmo and we're transforming it, don't check for selection change.
if (TransformGizmo != null && TransformGizmo.IsTransforming)
{
return;
}
if (WInput.GetMouseButtonDown(0) && !WInput.GetMouseButton(1) && !m_bOverrideSceneCamera)
{
FRay mouseRay = view.ProjectScreenToWorld(WInput.MousePosition);
BindingVector3 addedVec = Raycast(mouseRay, view.ViewCamera);
// Check the behaviour of this click to determine appropriate selection modification behaviour.
// Click w/o Modifiers = Clear Selection, add result to selection
// Click /w Ctrl = Toggle Selection State
// Click /w Shift = Add to Selection
bool ctrlPressed = WInput.GetKey(Key.LeftCtrl) || WInput.GetKey(Key.RightCtrl);
bool shiftPressed = WInput.GetKey(Key.LeftShift) || WInput.GetKey(Key.RightShift);
// Replace the previous selection with the current selection, if it's valid.
if (!ctrlPressed & !shiftPressed)
{
EditorSelection.ClearSelection();
if (addedVec != null)
{
EditorSelection.AddToSelection(addedVec);
}
}
else if (addedVec != null && (ctrlPressed && !shiftPressed))
{
if (EditorSelection.SelectedObjects.Contains(addedVec))
{
EditorSelection.RemoveFromSelection(addedVec);
}
else
{
EditorSelection.AddToSelection(addedVec);
}
}
else if (addedVec != null && shiftPressed)
{
if (!EditorSelection.SelectedObjects.Contains(addedVec))
{
EditorSelection.AddToSelection(addedVec);
}
}
}
if (m_CopyCameraRequest != null)
{
m_CopyCameraRequest.RequestingCut.CopySettingsFromCamera(view.ViewCamera, m_CopyCameraRequest.IsStart);
m_CopyCameraRequest = null;
}
if (WInput.GetMouseButton(1) && m_bOverrideSceneCamera)
{
RestoreSceneCamera(view);
}
UpdateGizmoTransform();
}