public GizmoHandleHoverData GetGizmoHandleHoverData(Gizmo gizmo)
{
Camera focusCamera = gizmo.FocusCamera;
Ray hoverRay = RTInputDevice.Get.Device.GetRay(focusCamera);
var hoverDataCollection = gizmo.GetAllHandlesHoverData(hoverRay);
Vector3 screenRayOrigin = focusCamera.WorldToScreenPoint(hoverRay.origin);
hoverDataCollection.Sort(delegate(GizmoHandleHoverData h0, GizmoHandleHoverData h1)
{
var handle0 = gizmo.GetHandleById_SystemCall(h0.HandleId);
var handle1 = gizmo.GetHandleById_SystemCall(h1.HandleId);
// Same dimensions?
bool sameDims = (h0.HandleDimension == h1.HandleDimension);
if (sameDims)
{
// 2D dimension?
if (h0.HandleDimension == GizmoDimension.Dim2D)
{
// If the priorities are equal, we sort by distance from screen ray origin.
// Otherwise, we sort by priority.
if (handle0.HoverPriority2D == handle1.HoverPriority2D)
{
float d0 = (screenRayOrigin - h0.HoverPoint).sqrMagnitude;
float d1 = (screenRayOrigin - h1.HoverPoint).sqrMagnitude;
return(d0.CompareTo(d1));
}
else
{
return(handle0.HoverPriority2D.CompareTo(handle1.HoverPriority2D));
}
}
// 3D dimension
else
{
// If the priorities are equal, we sort by hover enter. Otherwise, we sort by priority.
if (handle0.HoverPriority3D == handle1.HoverPriority3D)
{
return(h0.HoverEnter3D.CompareTo(h1.HoverEnter3D));
}
else
{
return(handle0.HoverPriority3D.CompareTo(handle1.HoverPriority3D));
}
}
}
else
{
// When the dimensions differ, we will sort by the gizmo generic priority. If the priorities are equal,
// we will give priority to 2D handles.
if (handle0.GenericHoverPriority == handle1.GenericHoverPriority)
{
if (h0.HandleDimension == GizmoDimension.Dim2D)
{
return(-1);
}
return(1);
}
return(handle0.GenericHoverPriority.CompareTo(handle1.GenericHoverPriority));
}
});
return(hoverDataCollection.Count != 0 ? hoverDataCollection[0] : null);
}