private void OnScrollChange(float _Offsetpercentage)
{
for (int i = 0; i < listTransPerc.Count; i++)
{
int index = i;
TransPercentageStruct itemStruct = listTransPerc[i];
itemStruct.curveItemData.Percentage += _Offsetpercentage;
if (itemStruct.curveItemData.Percentage >= 1f)
{
itemStruct.curveItemView.transform.SetAsFirstSibling();
// 取出最后一个然后把当前的插入到开头
CurveScrollerItemData data = listData.RemoveEnd();
float offset = itemStruct.curveItemData.Percentage - 1f;
data.Percentage = 0 + offset;
listData.AddStart(itemStruct.curveItemData);
itemStruct.SetData(data);
OnTailChanged?.Invoke();
}
else if (itemStruct.curveItemData.Percentage <= 0f)
{
itemStruct.curveItemView.transform.SetAsLastSibling();
//往上滑动 取出第一个然后把当前的插到最后一个
CurveScrollerItemData data = listData.RemoveStart();
listData.Add(itemStruct.curveItemData);
float offset = 0f - itemStruct.curveItemData.Percentage;
data.Percentage = 1f - offset;
itemStruct.SetData(data);
OnHeadChanged?.Invoke();
}
listTransPerc[index] = itemStruct;
SetTransPosForTweenPerc(listTransPerc[index].curveItemView.transform, listTransPerc[index].curveItemData.Percentage);
}
}
public abstract void SetData(CurveScrollerItemData t);
/// <summary>
/// 初始化
/// </summary>
/// <param name="curveItems"></param>
public void Init(CurveScrollerItemData[] curveItems)
{
if (isInit)
{
return;
}
if (tweenPath.path.wpLengths.Length <= 1)
{
Debug.LogError("tween Path 没有点位信息");
return;
}
isInit = true;
//获取path总长度
float pathLength = tweenPath.tween.PathLength();
//获取每个点的长度 第一个点为0 排除
float[] needwplengths = new float[tweenPath.path.wpLengths.Length - 1];
for (int i = 0; i < tweenPath.path.wpLengths.Length; i++)
{
//第一个永远是0 不需要
if (i == 0)
{
continue;
}
needwplengths[i - 1] = tweenPath.path.wpLengths[i];
}
//添加数据
//数据过少 就循环添加
if (curveItems.Length < needwplengths.Length)
{
int arrayIndex = 0;
//多添加一个
for (int i = 0; i <= needwplengths.Length; i++)
{
listData.Add(curveItems[arrayIndex]);
arrayIndex++;
if (arrayIndex > curveItems.Length - 1)
{
arrayIndex = 0;
}
}
}
else
{
for (int i = 0; i < curveItems.Length; i++)
{
listData.Add(curveItems[i]);
}
}
//计算比例
basePercentages = new float[needwplengths.Length];
float tempPercentage = 0;
for (int i = 0; i < needwplengths.Length; i++)
{
tempPercentage += needwplengths[i] / pathLength;
basePercentages[i] = tempPercentage;
}
for (int i = 0; i < basePercentages.Length; i++)
{
//克隆对象
CurveScrollerItemView cutveItem = Instantiate(curveItemPrefab.gameObject).GetComponent <CurveScrollerItemView>();
cutveItem.transform.transform.SetParent(this.transform);
//cutveItem.transform.localScale = Vector3.one;
CurveScrollerItemData curveItemData = listData.RemoveStart();
curveItemData.Percentage = basePercentages[i];
cutveItem.SetData(curveItemData);
SetTransPosForTweenPerc(cutveItem.transform, basePercentages[i]);
//添加到列表
listTransPerc.Add(new TransPercentageStruct(cutveItem, curveItemData));
}
listTransPerc.Capacity = listTransPerc.Count;
}
public void SetData(CurveScrollerItemData _curveItemData)
{
this.curveItemData = _curveItemData;
curveItemView.SetData(_curveItemData);
}
public TransPercentageStruct(CurveScrollerItemView _curveItemView, CurveScrollerItemData _curveItemData)
{
this.curveItemView = _curveItemView;
this.curveItemData = _curveItemData;
}