//--------------------------------------------------------------------------------------
#region Monobehaviour Functions
protected virtual void Awake()
{
FocusList = new List <GameObject>();
FocusExitList = new List <GameObject>();
FocusEnterList = new List <GameObject>();
FocusHitInfo = new FocusInfo();
if (CursorPrefab != null)
{
SetCursor(CursorPrefab);
}
}
/// <summary>
/// Will fill the list with UI elements from EventSystem raycast.
/// </summary>
/// <param name="focusedItems">The list to be filled.</param>
/// <returns>Did the raycast hit anything.</returns>
private bool GetUIRaycasts(ref List <FocusInfo> focusedItems)
{
bool hit = false;
// Get UI raycasts
m_UIRaycastResults.Clear();
if (EventSystem.current != null)
{
EventSystem.current.RaycastAll(GetPointerData(), m_UIRaycastResults);
hit = hit ? hit : (m_UIRaycastResults != null && m_UIRaycastResults.Count > 0);
if (hit)
{
// Add UI hits
for (int i = 0; i < m_UIRaycastResults.Count; ++i)
{
UnityEngine.EventSystems.RaycastResult raycastResult = m_UIRaycastResults[i];
float distance = raycastResult.distance;
if (distance <= FocusManager.Instance.MaxGazeDistance)
{
FocusInfo focusInfo = m_FocusInfoPool.GetObject();
focusInfo.SetUI(raycastResult.gameObject, true, raycastResult.index, distance, TargetOrigin + (TargetDirection.normalized * distance), -raycastResult.gameObject.transform.forward, raycastResult.gameObject.transform, Vector2.zero, raycastResult);
focusedItems.Add(focusInfo);
}
}
// Sort via render order
focusedItems.Sort((FocusInfo a, FocusInfo b) => {
if (a.raycastResult.sortingLayer != b.raycastResult.sortingLayer)
{
return(a.raycastResult.sortingLayer.CompareTo(b.raycastResult.sortingLayer));
}
if (a.raycastResult.sortingOrder != b.raycastResult.sortingOrder)
{
return(b.raycastResult.sortingOrder.CompareTo(a.raycastResult.sortingOrder));
}
bool distanceSimilar = Mathf.Approximately(a.distance, b.distance);
if (distanceSimilar)
{
return(a.raycastResult.index.CompareTo(b.raycastResult.index));
}
return(a.distance.CompareTo(b.distance));
});
}
}
return(hit);
}
/// <summary>
/// Will fill the list will all colliders from physics raycast.
/// </summary>
/// <param name="focusedItems">The list to be filled.</param>
/// <returns>Did the raycast hit anything.</returns>
private bool GetColliderRaycasts(ref List <FocusInfo> focusedItems)
{
// Get world collider raycasts
int numberOfHits = Physics.RaycastNonAlloc(FocusRay, m_ColliderRaycastHits, FocusManager.Instance.MaxGazeDistance, FocusManager.Instance.RaycastLayerMask);
bool hit = numberOfHits > 0;
if (hit)
{
for (int i = 0; i < numberOfHits; ++i)
{
RaycastHit raycastHit = m_ColliderRaycastHits[i];
FocusInfo focusInfo = m_FocusInfoPool.GetObject();
focusInfo.Set(raycastHit.transform.gameObject, raycastHit.distance, raycastHit.point, raycastHit.normal, raycastHit.transform, raycastHit.textureCoord);
focusedItems.Add(focusInfo);
}
}
return(hit);
}
/// <summary>
/// Calculates the Focus hit position and normal.
/// </summary>
public void UpdateRaycast()
{
OnPreRaycast();
Hit = false;
FocusInfo hitInfo = null;
FocusRay = new Ray(TargetOrigin, TargetDirection);
// This must be called at the start of the function, as functions called later in the frame rely on the data.
CleanFocusedItemCollection();
// Add UI items
bool hitUI = GetUIRaycasts(ref m_FocusedItems);
FocusInfo mainUIFocus = null;
if (hitUI && m_FocusedItems.Count > 0)
{
mainUIFocus = m_FocusedItems[0];
}
// Perform a preemptive raycast to determine if we are looking at the SR or nothing.
// If we are doing either, return out of the function early to avoid doing the extra raycast.
// Bug-Fix: This also fixed a bug where the SR would not allow the pins panel to be opened.
if (!hitUI)
{
RaycastHit hit;
bool hitSomething = Physics.Raycast(FocusRay, out hit, FocusManager.Instance.MaxGazeDistance, FocusManager.Instance.RaycastLayerMask);
if (!hitSomething || hit.transform.gameObject.layer == LayerMask.NameToLayer("SR"))
{
if (hitSomething)
{
Position = hit.point;
Normal = hit.normal;
}
else
{
Position = TargetOrigin + TargetDirection * FocusManager.Instance.MaxGazeDistance;
Normal = TargetDirection;
}
return;
}
}
// Add colliders
bool hitCollider = GetColliderRaycasts(ref m_FocusedItems);
// Check if we hit anything
if (hitCollider || hitUI)
{
// Sort via distance
m_FocusedItems.Sort((FocusInfo focusInfo1, FocusInfo focusInfo2) => {
int ret = focusInfo1.distance.CompareTo(focusInfo2.distance);
if (ret == 0)
{
Graphic graph1 = focusInfo1.gameObject.GetComponent <Graphic>();
Graphic graph2 = focusInfo2.gameObject.GetComponent <Graphic>();
if (graph1 != null && graph2 != null)
{
ret = graph2.depth.CompareTo(graph1.depth);
}
}
return(ret);
});
// Get the closest valid collider
for (int i = 0; i < m_FocusedItems.Count; ++i)
{
FocusInfo focusInfo = m_FocusedItems[i];
// Check if the transform has a valid filter
if (FocusManager.Instance.ContainsValidFilter(focusInfo.transform))
{
if (focusInfo.isUI && mainUIFocus != null)
{
focusInfo = mainUIFocus;
}
hitInfo = focusInfo;
Hit = true;
break;
}
}
}
if (hitInfo != null)
{
// The raycast hit a valid hologram
FocusHitInfo = hitInfo;
Position = hitInfo.point;
Normal = hitInfo.normal;
}
else
{
// If raycast did not hit a hologram... Save defaults
Position = TargetOrigin + (TargetDirection * FocusManager.Instance.MaxGazeDistance);
Normal = TargetDirection;
}
OnPostRaycast();
}
