float IClickable3D.DistanceToObject(Ray pointer)
{
mouseHovering = false;
float distance = drawSlice.Plane.Distance(pointer);
Vector3 mousePoint = pointer.Start + pointer.Direction * distance - locationOffset;
hovered = false;
float closestPointDistance = float.PositiveInfinity;
Vector3 closestPoint = Vector3.Zero;
if (distance > 0)
{
selectedTabIndex = -1;
float minDistanceToTab = tabRadius;
for (int i = 0; i < tabLocations.Count; i++)
{
float d = (mousePoint - tabLocations[i]).Length;
if (d < minDistanceToTab)
{
selectedTabIndex = i;
minDistanceToTab = d;
hovered = true;
}
}
if (selectedTabIndex < 0)
{
foreach (var segment in TabPath.Segments(LineStrip.Type.Closed))
{
Vector3 test = segment.ClosestPoint(mousePoint);
float d = (mousePoint - test).Length;
if (d < closestPointDistance)
{
closestPoint = test;
closestPointDistance = d;
}
}
if (closestPointDistance < toolRadius)
{
hovered = true;
hoveredPoint = closestPoint;
}
}
}
if (!hovered)
{
return(float.PositiveInfinity);
}
return(distance);
}
void IClickable3D.MouseMove(Ray pointer)
{
float distance = drawSlice.Plane.Distance(pointer);
Vector3 mousePoint = pointer.Start + pointer.Direction * distance + mouseOffset - locationOffset;
selectedTabDraggedOff = true;
float closestPointDistance = tabRadius;
Vector3 closestPoint = mousePoint;
foreach (var segment in TabPath.Segments(LineStrip.Type.Closed))
{
Vector3 test = segment.ClosestPoint(mousePoint);
float d = (mousePoint - test).Length;
if (d < closestPointDistance)
{
selectedTabDraggedOff = false;
closestPoint = test;
closestPointDistance = d;
}
}
tabLocations[selectedTabIndex] = closestPoint;
}