public virtual void OnEnable()
{
m_State = Loadm_State.Unloaded;
m_ReadyState = Loadm_State.None;
m_Root = null;
m_Data = null;
m_Coroutine = null;
}
//开始加载
public override void Load(UnityLODGroupFast data, ChildTreeRoot root)
{
if (m_State == Loadm_State.Unloaded)
{
m_Data = data;
m_Root = root;
Addressables.InstantiateAsync(m_Data._assetPath).Completed += OnAssetInstantiated;
m_State = Loadm_State.Loading;
}
else if (m_State == Loadm_State.UnLoading)
{
m_State = Loadm_State.Loading;
}
}
/*开始加载*/
public virtual void Load(UnityLODGroupFast data, ChildTreeRoot root)
{
//子类实现
}
public virtual void Set(UnityLODGroupFast data, ChildTreeRoot root)
{
m_Data = data;
m_Root = root;
}
/*更新BVH，对生成的BVH做后处理，广度遍历*/
public IEnumerator UpdateRootVolume(Action <List <LODVolume> > action)
{
Queue <LODVolume> queue = new Queue <LODVolume>();
//给每个子树添加ChildTreeRoot
queue.Enqueue(this);
while (queue.Count > 0)
{
LODVolume lodVolume = queue.Dequeue();
if (lodVolume.combined != null)
{
ChildTreeRoot treeRoot = lodVolume.gameObject.AddComponent <ChildTreeRoot>();
continue;
}
foreach (LODVolume lv in lodVolume.childVolumes)
{
queue.Enqueue(lv);
}
EditorUtility.DisplayProgressBar("添加ChildTreeRoot", lodVolume.name, 0.3f);
}
//叶子节点，给每个UnityLODGroup做引用，同时所有子树的节点引用ChildTreeRoot
queue.Enqueue(this);
while (queue.Count > 0)
{
LODVolume lodVolume = queue.Dequeue();
foreach (LODVolume lv in lodVolume.childVolumes)
{
queue.Enqueue(lv);
}
if (lodVolume.childVolumes.Count < 1)
{
foreach (var fast in lodVolume.lodGroups)
{
fast._lodVolume = lodVolume;
}
}
lodVolume.childTreeRoot = lodVolume.GetComponentInParent <ChildTreeRoot>();
EditorUtility.DisplayProgressBar("引用ChildTreeRoot", lodVolume.name, 0.6f);
}
//设置节点深度
int curLevelNum = 0; //当前层的节点数
int curLevel = 1; //层数
queue.Enqueue(this);
while (queue.Count > 0)
{
curLevelNum = queue.Count;
while (curLevelNum-- > 0)
{
LODVolume lodVolume = queue.Dequeue();
lodVolume.deep = curLevel;
foreach (LODVolume lv in lodVolume.childVolumes)
{
queue.Enqueue(lv);
}
EditorUtility.DisplayProgressBar("深度设置", lodVolume.name, 0.8f);
}
curLevel++;
}
//构造后续遍历列表
List <LODVolume> backSort = new List <LODVolume>();
Stack <LODVolume> stack = new Stack <LODVolume>();
stack.Push(this);
while (stack.Count > 0)
{
LODVolume lodVolume = stack.Pop();
backSort.Add(lodVolume);
foreach (LODVolume lv in lodVolume.childVolumes)
{
stack.Push(lv);
}
EditorUtility.DisplayProgressBar("构造后续遍历列表", lodVolume.name, 0.9f);
}
backSort.Reverse();
if (action != null)
{
action.Invoke(backSort);
}
yield return(null);
}