/// <summary>
/// 手指检测最近的平面
/// </summary>
private bool FingerRaycast(XRPointEventData eventData, out Vector3 raycasterDirection)
{
raycasterDirection = Vector3.forward;
if (UICanvas == null)
{
return(false);
}
if (UICanvas.renderMode == RenderMode.ScreenSpaceOverlay)
{
return(false);
}
var canvasGraphics = GraphicRegistry.GetGraphicsForCanvas(UICanvas);
if (canvasGraphics == null || canvasGraphics.Count == 0)
{
return(false);
}
float maxSqrDistance = eventData.hitDistance * eventData.hitDistance;
int lengthOfGraphics = canvasGraphics.Count;
float minSqrDistance = maxSqrDistance + 1f;
for (int i = 0; i < lengthOfGraphics; i++)
{
Graphic graphic = canvasGraphics[i];
if (graphic.depth == -1 || !graphic.raycastTarget || graphic.canvasRenderer.cull)
{
continue;
}
RectTransform rectTransform = graphic.rectTransform;
if (ignoreReversedGraphics)
{
var rayDir = eventData.origin - rectTransform.position;
if (Vector3.Dot(rayDir, rectTransform.forward) > 0)
{
continue;
}
}
float sqrDistance = maxSqrDistance + 1;
if (rectTransform.InRectangle(eventData.origin, out sqrDistance))
{
if (sqrDistance < minSqrDistance && sqrDistance <= maxSqrDistance)
{
minSqrDistance = sqrDistance;
raycasterDirection = rectTransform.forward;
}
}
}
return(minSqrDistance <= maxSqrDistance);
}
private bool GetFingerPointerData(int id, out XRPointEventData data, bool create)
{
if (!m_FingerPointerData.TryGetValue(id, out data) && create)
{
data = new XRPointEventData(eventSystem)
{
pointerId = id,
};
m_FingerPointerData.Add(id, data);
return(true);
}
return(false);
}
private MouseButtonEventData GetLaserPointerEventData(LaserPointer laser)
{
MouseButtonEventData mouseButtonData;
var created = GetLaserPointerData(laser.fingerId, out mouseButtonData, true);
XRPointEventData pointerData = mouseButtonData.buttonData as XRPointEventData;
pointerData.Reset();
pointerData.origin = laser.origin;
pointerData.direction = laser.direction;
pointerData.hitDistance = laser.raycastDistance;
pointerData.button = PointerEventData.InputButton.Left;
pointerData.raycastCamera = laser.raycastCamera;
pointerData.position = new Vector2(laser.raycastCamera.pixelWidth * 0.5f, laser.raycastCamera.pixelHeight * 0.5f);
pointerData.useFingerRaycast = false;
eventSystem.RaycastAll(pointerData, m_RaycastResultCache);
var raycast = FindFirstRaycast(m_RaycastResultCache);
pointerData.pointerCurrentRaycast = raycast;
m_RaycastResultCache.Clear();
//更新射线状态
laser.UpdateStateFormRaycast(ref raycast);
mouseButtonData.buttonState = XRPointEventData.StateForButton(laser.isPressed, laser.isReleased);
if (laser.isHit)
{
if (created)
{
pointerData.hitPoint = laser.hitPoint;
}
pointerData.scrollDelta = laser.scrollDelta;
pointerData.delta = laser.delta;
pointerData.hitNormal = laser.hitNormal;
pointerData.hitPoint = laser.hitPoint;
}
return(mouseButtonData);
}
private void RecordPressedPosition(XRPointEventData eventData)
{
eventData.pressHitPosition = eventData.hitPoint;
}
/// <summary>
/// 手指检测最近的平面
/// 优化:
/// </summary>
private bool FingerRaycast(XRPointEventData eventData, ref Vector3 nearGrapicNormal)
{
return(false);
}