// Update EnhanceItem state with curve fTime value
private void UpdateEnhanceScrollView(float fValue)
{
for (int i = 0; i < _listEnhanceItems.Count; i++)
{
EnhanceItem itemScript = _listEnhanceItems[i];
float xValue = GetXPosValue(fValue, itemScript.CenterOffSet);
float scaleValue = GetScaleValue(fValue, itemScript.CenterOffSet);
float depthCurveValue = _depthCurve.Evaluate(fValue + itemScript.CenterOffSet);
itemScript.UpdateScrollViewItems(xValue, depthCurveValue, _depthFactor, _listEnhanceItems.Count,
_yFixedPositionValue, scaleValue);
}
// 只处理了有4个的情况
if (IsShowThree)
{
if (_listEnhanceItems.Count > 3)
{
_listEnhanceItems.Sort((a, b) => a.SiblingIndex - b.SiblingIndex);
for (int i = 0; i < _listEnhanceItems.Count; i++)
{
if (i == 0)
{
_listEnhanceItems[i].gameObject.SetActive(false);
}
else
{
_listEnhanceItems[i].gameObject.SetActive(true);
}
}
}
}
}
private int GetMoveCurveFactorCount(EnhanceItem preCenterItem, EnhanceItem newCenterItem)
{
SortEnhanceItem();
int factorCount = Mathf.Abs(newCenterItem.RealIndex) - Mathf.Abs(preCenterItem.RealIndex);
return(Mathf.Abs(factorCount));
}
// On Drag End
public void OnDragEnhanceViewEnd()
{
// find closed item to be centered
int closestIndex = 0;
float value = (_curHorizontalValue - (int)_curHorizontalValue);
float min = float.MaxValue;
float tmp = 0.5f * (_curHorizontalValue < 0 ? -1 : 1);
for (int i = 0; i < _listEnhanceItems.Count; i++)
{
float dis = Mathf.Abs(Mathf.Abs(value) - Mathf.Abs((tmp - _listEnhanceItems[i].CenterOffSet)));
if (dis < min)
{
closestIndex = i;
min = dis;
}
}
_originHorizontalValue = _curHorizontalValue;
float target = ((int)_curHorizontalValue + (tmp - _listEnhanceItems[closestIndex].CenterOffSet));
_preCenterItem = _curCenterItem;
_curCenterItem = _listEnhanceItems[closestIndex];
LerpTweenToTarget(_originHorizontalValue, target, true);
_canChangeItem = false;
}
public void SetHorizontalTargetItemIndex(EnhanceItem selectItem)
{
if (!_canChangeItem)
{
return;
}
if (_curCenterItem == selectItem)
{
return;
}
_canChangeItem = false;
_preCenterItem = _curCenterItem;
_curCenterItem = selectItem;
// calculate the direction of moving
float centerXValue = _positionCurve.Evaluate(0.5f) * _totalHorizontalWidth;
bool isRight = selectItem.transform.localPosition.x > centerXValue;
// calculate the offset * dFactor
int moveIndexCount = GetMoveCurveFactorCount(_preCenterItem, selectItem);
float dvalue = isRight ? -_dFactor * moveIndexCount : _dFactor * moveIndexCount;
float originValue = _curHorizontalValue;
LerpTweenToTarget(originValue, _curHorizontalValue + dvalue, true);
}
public void InitData <T>(List <T> dataList)
{
LogManager.Assert(_itemObj != null, "预设不能为空");
if (_itemObj == null)
{
return;
}
if (_listEnhanceItems.Count <= 0)
{
int num = dataList.Count;
for (int i = 0; i < num; i++)
{
GameObject go = Instantiate(_itemObj);
go.transform.SetParent(transform, false);
EnhanceItem item = go.GetComponent <EnhanceItem>();
item.EnhanceScrollView = this;
item.ListIndex = i;
item.ListCount = num;
_listEnhanceItems.Add(item);
if (IsVertical)
{
item.transform.localRotation = Quaternion.Euler(new Vector3(0, 0, -90));
}
}
}
for (int i = 0; i < _listEnhanceItems.Count; i++)
{
_listEnhanceItems[i].SetData(dataList[i]);
}
InitView();
}
// sort item with X so we can know how much distance we need to move the timeLine(curve time line)
private int SortPosition(EnhanceItem a, EnhanceItem b)
{
return(a.transform.localPosition.x.CompareTo(b.transform.localPosition.x));
}
private void InitView()
{
_canChangeItem = true;
int count = _listEnhanceItems.Count;
if (count <= 0)
{
return;
}
_dFactor = (Mathf.RoundToInt((1f / count) * 10000f)) * 0.0001f;
_mCenterIndex = count / 2;
if (count % 2 == 0)
{
_mCenterIndex = count / 2 - 1;
}
int index = 0;
for (int i = count - 1; i >= 0; i--)
{
_listEnhanceItems[i].CurveOffSetIndex = i;
if (count != 2)
{
_listEnhanceItems[i].CenterOffSet = _dFactor * (_mCenterIndex - index);
}
else//只有2个item时,初始化时第二个item会显示在左边，是因为AnimationCurve的取值区间是[0,1],导致偏移量为1时取值0，[0,1)不知道怎么实现╮(╯▽╰)╭
{ //当前的曲线的走向看噩梦关卡/日常活动里的PositionCurve，改成其他曲线时这里可能有坑...
_listEnhanceItems[1].CenterOffSet = 0.49f;
_listEnhanceItems[0].CenterOffSet = 0.01f;
}
_listEnhanceItems[i].SetSelectState(false);
GameObject obj = _listEnhanceItems[i].gameObject;
UDragEnhanceView script = obj.GetComponent <UDragEnhanceView>() ?? obj.AddComponent <UDragEnhanceView>();
if (script != null)
{
script.SetScrollView(this);
}
index++;
}
// set the center item with startCenterIndex
if (_startCenterIndex < 0 || _startCenterIndex >= count)
{
LogManager.Error("## startCenterIndex < 0 || startCenterIndex >= listEnhanceItems.Count out of index ##");
_startCenterIndex = _mCenterIndex;
}
// sorted items
_listSortedItems = new List <EnhanceItem>(_listEnhanceItems.ToArray());
_totalHorizontalWidth = _cellWidth * count;
_curCenterItem = _listEnhanceItems[_startCenterIndex];
_curHorizontalValue = 0.5f - _curCenterItem.CenterOffSet;
LerpTweenToTarget(0f, _curHorizontalValue, false);
if (IsVertical)
{
_rectTrans.anchoredPosition = new Vector2(0, -_totalHorizontalWidth / 2);
_rectTrans.localRotation = Quaternion.Euler(new Vector3(0, 0, 90));
}
else
{
_rectTrans.anchoredPosition = new Vector2(-_totalHorizontalWidth / 2, 0);
_rectTrans.localRotation = Quaternion.Euler(new Vector3(0, 0, 0));
}
}
