private TrackedPointerEventData GetOrCreateCachedTrackedPointerEvent()
{
var result = m_CachedTrackedPointerEventData;
if (result == null)
{
result = new TrackedPointerEventData(eventSystem);
m_CachedTrackedPointerEventData = result;
}
return(result);
}
public void CopyFrom(TrackedPointerEventData eventData)
{
m_InternalData.pointerTarget = eventData.pointerEnter;
m_InternalData.isDragging = eventData.dragging;
m_InternalData.pressedTime = eventData.clickTime;
m_InternalData.pressedPosition = eventData.pressPosition;
m_InternalData.pressedRaycast = eventData.pointerPressRaycast;
m_InternalData.pressedGameObject = eventData.pointerPress;
m_InternalData.pressedGameObjectRaw = eventData.rawPointerPress;
m_InternalData.draggedGameObject = eventData.pointerDrag;
var hoverTargets = m_InternalData.hoverTargets;
hoverTargets.ClearWithCapacity();
hoverTargets.Append(eventData.hovered);
m_InternalData.hoverTargets = hoverTargets;
}
public void CopyTo(TrackedPointerEventData eventData)
{
eventData.ray = new Ray(m_Position, m_Orientation * Vector3.forward);
eventData.maxDistance = 1000;
// Demolish the position so we don't trigger any checks from the Graphics Raycaster.
eventData.position = new Vector2(float.MinValue, float.MinValue);
eventData.pointerEnter = m_InternalData.pointerTarget;
eventData.dragging = m_InternalData.isDragging;
eventData.clickTime = m_InternalData.pressedTime;
eventData.pressPosition = m_InternalData.pressedPosition;
eventData.pointerPressRaycast = m_InternalData.pressedRaycast;
eventData.pointerPress = m_InternalData.pressedGameObject;
eventData.rawPointerPress = m_InternalData.pressedGameObjectRaw;
eventData.pointerDrag = m_InternalData.draggedGameObject;
eventData.hovered.Clear();
eventData.hovered.AddRange(m_InternalData.hoverTargets);
}
private void PerformRaycast(TrackedPointerEventData eventData, List <RaycastResult> resultAppendList)
{
if (canvas == null)
{
return;
}
if (eventCamera == null)
{
return;
}
var ray = eventData.ray;
var hitDistance = eventData.maxDistance;
if (checkFor3DOcclusion)
{
var hits = Physics.RaycastAll(ray, hitDistance, m_BlockingMask);
if (hits.Length > 0 && hits[0].distance < hitDistance)
{
hitDistance = hits[0].distance;
}
}
if (checkFor2DOcclusion)
{
var raycastDistance = hitDistance;
var hits = Physics2D.GetRayIntersectionAll(ray, raycastDistance, m_BlockingMask);
if (hits.Length > 0 && hits[0].fraction * raycastDistance < hitDistance)
{
hitDistance = hits[0].fraction * raycastDistance;
}
}
m_RaycastResultsCache.Clear();
SortedRaycastGraphics(canvas, ray, m_RaycastResultsCache);
var screenPosition = Vector2.zero;
if (m_RaycastResultsCache.Count == 0)
{
Vector3 endPosition = ray.origin + (ray.direction.normalized * hitDistance);
screenPosition = eventCamera.WorldToScreenPoint(endPosition);
}
else
{
screenPosition = m_RaycastResultsCache[0].screenPosition;
}
var thisFrameDelta = screenPosition - eventData.position;
eventData.position = screenPosition;
eventData.delta = thisFrameDelta;
//Now that we have a list of sorted hits, process any extra settings and filters.
for (var i = 0; i < m_RaycastResultsCache.Count; i++)
{
var validHit = true;
var hitData = m_RaycastResultsCache[i];
var go = hitData.graphic.gameObject;
if (ignoreReversedGraphics)
{
var forward = ray.direction;
var goDirection = go.transform.rotation * Vector3.forward;
validHit = Vector3.Dot(forward, goDirection) > 0;
}
validHit &= hitData.distance < hitDistance;
if (validHit)
{
var castResult = new RaycastResult
{
gameObject = go,
module = this,
distance = hitData.distance,
index = resultAppendList.Count,
depth = hitData.graphic.depth,
worldPosition = hitData.worldHitPosition
};
resultAppendList.Add(castResult);
}
}
}
