void UpdateItem(int count)
{
for (int i = 0; i < count; i++)
{
GameObject imageObj = adapter.GetGameObject(this, i);
if (imageObj == null)
{
continue;
}
imageObj.transform.SetParent(uiRoundTable.transform, false);
imageObj.AddComponent <KSPrivateDataReference>().setData <int>(i);
TurnTableItem item = imageObj.GetComponent <TurnTableItem>();
Destroy(images[i]);
images[i] = imageObj;
lastRoundTableRotationRadian = roundTableRotationRadian - 1;
UpdateLayout();
}
_updateItemDone = true;
}
//在update的时候调用，更新ui
public void UpdateLayout()
{
//如果没旋转，保持原样，不必刷新位置
if (lastRoundTableRotationRadian == roundTableRotationRadian)
{
return;
}
lastRoundTableRotationRadian = roundTableRotationRadian;
int newSelectedIndex = selectedIndex;
for (int i = 0; i < count; i++)
{
//计算占位元素的位置（相对圆心的位置）
float angleRadian = roundTableRotationRadian + i * Mathf.PI * 2 / maxCount + selectedRadian;
Vector3 pos = new Vector3(Mathf.Cos(angleRadian), 0, Mathf.Sin(angleRadian)) * roundTableRadius;
//设置占位元素的相对位置
GameObject placeHolder = placeHolders[i];
placeHolder.gameObject.transform.localPosition = pos;
GameObject imageObj = images[i];
//通知item位置设置变化（item可在此修改自己alpha 亮度等）
TurnTableItem item = imageObj.GetComponent <TurnTableItem>();
if (item != null)
{
item.OnPositionChanged(pos, roundTableRadius);
}
if (angleRadian >= selectMinRadian && angleRadian <= selectMaxRadian)
{
newSelectedIndex = i;
}
}
if (newSelectedIndex != selectedIndex)
{
selectedIndex = newSelectedIndex;
//通知选择变化
if (selectedListener != null)
{
selectedListener(selectedIndex);
}
}
}
//设置数据绑定对象。只能设置一次，并且在start调用才生效
public void SetAdapter(TurnTableAdapter adapter, bool coroutineLoading = false)
{
this.adapter = adapter;
//摆斜占位盘子、z轴偏移位置
float xOffset = 0;
float zOffset = 0;
float yOffset = 0;
switch (selectMode)
{
case SelectedMode.Bottom:
selectedRadian = Mathf.PI * 3 / 2;
xOffset = 0;
zOffset = Mathf.Cos(roundTableTiltDegree * Mathf.Deg2Rad) * roundTableRadius;
yOffset = Mathf.Sin(roundTableTiltDegree * Mathf.Deg2Rad) * roundTableRadius;
break;
case SelectedMode.Top:
selectedRadian = Mathf.PI / 2;
xOffset = 0;
zOffset = -Mathf.Cos(roundTableTiltDegree * Mathf.Deg2Rad) * roundTableRadius;
yOffset = -Mathf.Sin(roundTableTiltDegree * Mathf.Deg2Rad) * roundTableRadius;
break;
case SelectedMode.Right:
selectedRadian = 0;
xOffset = -Mathf.Cos(selectedRadian) * roundTableRadius;
zOffset = 0;
yOffset = 0;
break;
case SelectedMode.Left:
selectedRadian = Mathf.PI;
xOffset = -Mathf.Cos(selectedRadian) * roundTableRadius;
zOffset = 0;
yOffset = 0;
break;
case SelectedMode.Center:
selectedRadian = Mathf.PI / 2;
xOffset = 0;
zOffset = 0;
yOffset = 0;
break;
}
tiltTablePlaceHolder.transform.localPosition = new Vector3(xOffset, yOffset, zOffset);
tiltTablePlaceHolder.transform.rotation = Quaternion.Euler(new Vector3(-roundTableTiltDegree, 0, 0));
//通过adapter获取数据数量
maxCount = adapter.GetMaxCount();
count = adapter.GetCount();
//计算每个item占的角度、从而计算出可滑动最大、最小角度
eachRadian = 2 * Mathf.PI / maxCount;
minRotationRadian = -(eachRadian * (count - 1) + eachRadian / 2);
maxRotationRadian = eachRadian / 2;
selectMaxRadian = selectedRadian + eachRadian / 2;
selectMinRadian = selectedRadian - eachRadian / 2;
for (int i = 0; i < tiltTablePlaceHolder.transform.childCount; i++)
{
GameObject obj = tiltTablePlaceHolder.transform.GetChild(i).gameObject;
Destroy(obj);
}
for (int i = 0; i < uiRoundTable.transform.childCount; i++)
{
Destroy(uiRoundTable.transform.GetChild(i).gameObject);
}
if (coroutineLoading)
{
//动态添加占位元素 和 显示元素
placeHolders = new GameObject[count];
images = new GameObject[count];
for (int i = 0; i < count; i++)
{
GameObject placeHolder = new GameObject();
placeHolder.name = "" + i;
placeHolder.AddComponent <PlaceHolder>();
placeHolder.transform.SetParent(tiltTablePlaceHolder.transform, false);
GameObject imageObj = new GameObject();
imageObj.transform.SetParent(uiRoundTable.transform, false);
placeHolders[i] = placeHolder;
images[i] = imageObj;
}
lastRoundTableRotationRadian = roundTableRotationRadian - 1;
UpdateLayout();
UpdateItem(count);
}
else
{
_updateItemDone = true;
//动态添加占位元素 和 显示元素
placeHolders = new GameObject[count];
images = new GameObject[count];
for (int i = 0; i < count; i++)
{
GameObject placeHolder = new GameObject();
placeHolder.name = "" + i;
placeHolder.AddComponent <PlaceHolder>();
placeHolder.transform.SetParent(tiltTablePlaceHolder.transform, false);
GameObject imageObj = adapter.GetGameObject(this, i);
imageObj.transform.SetParent(uiRoundTable.transform, false);
imageObj.AddComponent <KSPrivateDataReference>().setData <int>(i);
TurnTableItem item = imageObj.GetComponent <TurnTableItem>();
placeHolders[i] = placeHolder;
images[i] = imageObj;
}
lastRoundTableRotationRadian = roundTableRotationRadian - 1;
UpdateLayout();
}
}
