protected override ScrollElement RemoveElementFromShoing(int Idx)
{
ScrollElement removedElement = m_ShowingElements[Idx];
m_ShowingElements.RemoveAt(Idx);
return(removedElement);
}
protected override int GetCenterNearlyElement()
{
float centerPos = CountCeneterPos();
ScrollElement element = m_ShowingElements[0];
int midleIdx = 0;
float startPos = element.rect.localPosition.x;
float elementWidth = m_SampleElement.rect.width;
float elementSpace = elementWidth + m_SpaceBTElements;
float lastDst = 999999999999999999;
for (int idx = 0; idx < m_ShowingElements.Count; ++idx)
{
float elementCeneter = startPos + elementWidth / 2;
float countDst = Mathf.Abs(centerPos - elementCeneter);
if (countDst < lastDst)
{
lastDst = countDst;
midleIdx = idx;
startPos += elementSpace;
}
else
{
break;
}
}
return(midleIdx);
}
public override void Reset()
{
base.Reset();
Vector2 size = m_ElementContainer.sizeDelta;
Vector2 countSize = (Vector2)(elementEndShift * m_ElementsInfoAgent.GetInfoCount() - elementLineDirector * m_SpaceBTElements);
size.x = Mathf.Abs(countSize.x) > 0 ? Mathf.Abs(countSize.x) : size.x;
size.y = Mathf.Abs(countSize.y) > 0 ? Mathf.Abs(countSize.y) : size.y;
Vector2 elementdir = elementLineDirector;
elementdir.x = Mathf.Abs(elementdir.x);
elementdir.y = Mathf.Abs(elementdir.y);
size += elementdir * (m_HeadSpace + m_TailSpace);
m_ElementContainer.sizeDelta = size;
IEnumerator <ScrollElement> chipsEnumerator = m_ShowingElements.GetEnumerator();
chipsEnumerator.Reset();
while (chipsEnumerator.MoveNext())
{
DisPawnElement(chipsEnumerator.Current);
}
m_ShowingElements.Clear();
int headIdx = CountHeadIdx();
if (headIdx < m_ElementsInfoAgent.GetInfoCount() - 1)
{
ScrollElement headElement = SpawnElement();
AddHead(headElement);
}
}
protected override bool IsOutTailBounce()
{
ScrollElement tailElement = m_ShowingElements[showingElementsNum - 1];
CountItemAnchorsPosOnContentPositon(m_ItemAchorsInContentPos, tailElement.rect);
if (m_ViewAnchorsInContentPos[2].x < m_ItemAchorsInContentPos[0].x)
{
return(true);
}
return(false);
}
protected override bool IsOutHeadBounce()
{
ScrollElement headElement = m_ShowingElements[0];
CountItemAnchorsPosOnContentPositon(m_ItemAchorsInContentPos, headElement.rect);
if (m_ViewAnchorsInContentPos[0].x > m_ItemAchorsInContentPos[2].x)
{
return(true);
}
return(false);
}
protected override void AddTail(ScrollElement tailElement)
{
ScrollElement perTailEleemnt = m_ShowingElements[showingElementsNum - 1];
Vector2 anchorPositon = perTailEleemnt.rect.anchoredPosition;
anchorPositon += elementEndShift;
tailElement.rect.anchoredPosition = anchorPositon;
tailElement = InitScrollElement(tailElement, perTailEleemnt.idx + 1);
m_ShowingElements.Add(tailElement);
}
protected override void AddTail(ScrollElement tailElement)
{
ScrollElement perTailEleemnt = m_ShowingElements[showingElementsNum - 1];
tailElement = InitScrollElement(tailElement, perTailEleemnt.idx + 1);
Vector3 anchorPositon = perTailEleemnt.rect.anchoredPosition;
anchorPositon.x += m_SampleElement.rect.width + m_SpaceBTElements;
tailElement.rect.anchoredPosition = anchorPositon;
m_ShowingElements.Add(tailElement);
}
protected override void Bounce()
{
float centerPos = CountCeneterPos();
ScrollElement element = m_ShowingElements[GetCenterNearlyElement()];
float dist = centerPos - m_SampleElement.rect.width / 2 - element.rect.localPosition.x;
Vector3 targetPos = m_ElementContainer.localPosition;
targetPos.x += dist;
Vector3 finalyPos = new Vector3();
finalyPos = Vector3.SmoothDamp(m_ElementContainer.localPosition, targetPos, ref bounceSpeed, m_BounceBackTime);
m_ElementContainer.localPosition = finalyPos;
}
protected override bool IsOutTailBounce()
{
ScrollElement tailElement = m_ShowingElements[showingElementsNum - 1];
Vector2 viewHeadPos = CountHeadPosOfView();
Vector2 viewTailPos = CountTailPosOfView();
Vector2 viewVector = viewTailPos - viewHeadPos;
Vector2 elementVector = viewTailPos - tailElement.rect.anchoredPosition;
if (Vector2.Dot(viewVector, elementVector) < 0)
{
return(true);
}
return(false);
}
protected override bool IsOutHeadBounce()
{
ScrollElement headElement = m_ShowingElements[0];
Vector2 viewHeadPos = CountHeadPosOfView();
Vector2 viewTailPos = CountTailPosOfView();
Vector2 viewVector = viewTailPos - viewHeadPos;
Vector2 elementVector = viewHeadPos - headElement.rect.anchoredPosition - elementTailShift;
if (Vector2.Dot(viewVector, elementVector) > 0)
{
return(true);
}
return(false);
}
protected override bool IsNeedAddTail()
{
ScrollElement tailElement = m_ShowingElements[showingElementsNum - 1];
if (tailElement.idx >= m_ElementsAgent.GetInfoCount() - 1)
{
return(false);
}
CountItemAnchorsPosOnContentPositon(m_ItemAchorsInContentPos, tailElement.rect);
if (m_ViewAnchorsInContentPos[2].x > m_ItemAchorsInContentPos[2].x)
{
return(true);
}
return(false);
}
protected override bool IsNeedAddHead()
{
if (showingElementsNum <= 0)
{
return(true);
}
ScrollElement headElement = m_ShowingElements[0];
if (headElement.idx <= 0)
{
return(false);
}
CountItemAnchorsPosOnContentPositon(m_ItemAchorsInContentPos, headElement.rect);
if (m_ViewAnchorsInContentPos[0].x < m_ItemAchorsInContentPos[0].x)
{
return(true);
}
return(false);
}
protected override bool IsNeedAddTail()
{
ScrollElement tailElement = m_ShowingElements[showingElementsNum - 1];
if (tailElement.idx >= m_ElementsInfoAgent.GetInfoCount() - 1)
{
return(false);
}
Vector2 viewHeadPos = CountHeadPosOfView();
Vector2 viewTailPos = CountTailPosOfView();
Vector2 viewVector = viewTailPos - viewHeadPos;
Vector2 elementVector = viewTailPos - tailElement.rect.anchoredPosition - elementTailShift;
if (Vector2.Dot(viewVector, elementVector) > 0)
{
return(true);
}
return(false);
}
protected override void AddHead(ScrollElement headElement)
{
if (showingElementsNum > 0)
{
ScrollElement perHeadEleemnt = m_ShowingElements[0];
headElement = InitScrollElement(headElement, perHeadEleemnt.idx - 1);
Vector2 anchorPositon = perHeadEleemnt.rect.anchoredPosition;
anchorPositon -= elementEndShift;
headElement.rect.anchoredPosition = anchorPositon;
m_ShowingElements.Insert(0, headElement);
}
else
{
int headIdx = CountHeadIdx();
headElement = InitScrollElement(headElement, headIdx);
Vector2 newPosition = CountPosByIdx(headIdx);
headElement.rect.anchoredPosition = newPosition;
m_ShowingElements.Insert(0, headElement);
}
}
protected override void AddHead(ScrollElement headElement)
{
if (showingElementsNum > 0)
{
ScrollElement perHeadEleemnt = m_ShowingElements[0];
headElement = InitScrollElement(headElement, perHeadEleemnt.idx - 1);
Vector3 anchorPositon = perHeadEleemnt.rect.anchoredPosition;
anchorPositon.x -= m_SampleElement.rect.width + m_SpaceBTElements;
headElement.rect.anchoredPosition = anchorPositon;
m_ShowingElements.Insert(0, headElement);
}
else
{
int headIdx = CountHeadIdx();
headElement = InitScrollElement(headElement, headIdx);
Vector3 newPosition = headElement.rect.anchoredPosition;
newPosition.x = CountPosByIdx(headIdx);
headElement.rect.anchoredPosition = newPosition;
m_ShowingElements.Insert(0, headElement);
}
}
public void Reset()
{
float with = m_ElementsAgent.GetInfoCount() * (m_SampleElement.rect.width + m_SpaceBTElements) - m_SpaceBTElements;
Vector2 size = m_ElementContainer.sizeDelta;
size.x = with;
m_ElementContainer.sizeDelta = size;
IEnumerator <ScrollElement> chipsEnumerator = m_ShowingElements.GetEnumerator();
chipsEnumerator.Reset();
while (chipsEnumerator.MoveNext())
{
DisPawnElement(chipsEnumerator.Current);
}
m_ShowingElements.Clear();
int headIdx = CountHeadIdx();
if (headIdx < m_ElementsAgent.GetInfoCount() - 1)
{
ScrollElement headElement = SpawnElement();
AddHead(headElement);
}
}
protected override bool IsNeedAddHead()
{
if (showingElementsNum <= 0)
{
return(true);
}
ScrollElement headElement = m_ShowingElements[0];
if (headElement.idx <= 0)
{
return(false);
}
Vector2 viewHeadPos = CountHeadPosOfView();
Vector2 viewTailPos = CountTailPosOfView();
Vector2 viewVector = viewTailPos - viewHeadPos;
Vector2 elmentVector = viewHeadPos - headElement.rect.anchoredPosition;
if (Vector2.Dot(viewVector, elmentVector) < 0)
{
return(true);
}
return(false);
}
