static float FaceRaycast(Vector3 mousePosition,
ScenePickerPreferences pickerOptions,
bool allowUnselected,
SceneSelection selection,
int deepClickOffset = 0,
bool isPreview = true)
{
GameObject pickedGo = null;
ProBuilderMesh pickedPb = null;
Face pickedFace = null;
int newHash = 0;
// If any event modifiers are engaged don't cycle the deep click
EventModifiers em = Event.current.modifiers;
// Reset cycle if we used an event modifier previously.
// Move state back to single selection.
if ((em != EventModifiers.None) != s_AppendModifierPreviousState)
{
s_AppendModifierPreviousState = (em != EventModifiers.None);
s_DeepSelectionPrevious = newHash;
}
if (isPreview || em != EventModifiers.None)
{
EditorHandleUtility.GetHovered(mousePosition, s_OverlappingGameObjects);
}
else
{
EditorHandleUtility.GetAllOverlapping(mousePosition, s_OverlappingGameObjects);
}
selection.Clear();
float distance = Mathf.Infinity;
for (int i = 0, next = 0, pickedCount = s_OverlappingGameObjects.Count; i < pickedCount; i++)
{
var go = s_OverlappingGameObjects[i];
var mesh = go.GetComponent <ProBuilderMesh>();
Face face = null;
if (mesh != null && (allowUnselected || MeshSelection.topInternal.Contains(mesh)))
{
Ray ray = UHandleUtility.GUIPointToWorldRay(mousePosition);
RaycastHit hit;
if (UnityEngine.ProBuilder.HandleUtility.FaceRaycast(ray,
mesh,
out hit,
Mathf.Infinity,
pickerOptions.cullMode))
{
face = mesh.facesInternal[hit.face];
distance = Vector2.SqrMagnitude(((Vector2)mousePosition) - HandleUtility.WorldToGUIPoint(mesh.transform.TransformPoint(hit.point)));
}
}
// pb_Face doesn't define GetHashCode, meaning it falls to object.GetHashCode (reference comparison)
int hash = face == null?go.GetHashCode() : face.GetHashCode();
if (s_DeepSelectionPrevious == hash)
{
next = (i + (1 + deepClickOffset)) % pickedCount;
}
if (next == i)
{
pickedGo = go;
pickedPb = mesh;
pickedFace = face;
newHash = hash;
// a prior hash was matched, this is the next. if
// it's just the first iteration don't break (but do
// set the default).
if (next != 0)
{
break;
}
}
}
if (!isPreview)
{
s_DeepSelectionPrevious = newHash;
}
if (pickedGo != null)
{
Event.current.Use();
if (pickedPb != null)
{
if (pickedPb.selectable)
{
selection.gameObject = pickedGo;
selection.mesh = pickedPb;
selection.SetSingleFace(pickedFace);
return(Mathf.Sqrt(distance));
}
}
// If clicked off a pb_Object but onto another gameobject, set the selection
// and dip out.
selection.gameObject = pickedGo;
return(Mathf.Sqrt(distance));
}
return(distance);
}
