/// <summary>
/// 从缓存中获取节点
/// </summary>
/// <param name="cube"></param>
/// <returns></returns>
public bool TryHitCache(QuadTreeSpaceCube cube)
{
CubeTime hitCube = null;
for (int i = 0; i < cachedCube.Count; ++i)
{
var cache_info = cachedCube[i];
if (cache_info == null)
{
continue;
}
if (cache_info.mCube == cube)
{
hitCube = cache_info;
break;
}
}
if (hitCube != null)
{
// 将节点移动到队列结尾，并设置新的访问时间
cachedCube.Remove(hitCube);
cachedCube.Add(hitCube);
hitCube.mTime = Time.unscaledTime;
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 释放超过一定时候都还没有显示的节点
/// </summary>
void ReleaseTooOld()
{
cubeNeedDelete.Clear();
for (int i = 0; i < cachedCube.Count; i++)
{
if (!cachedCube[i].mCube.IsShow)
{
if (Time.unscaledTime - cachedCube[i].mTime > DIE_TIME)
{
cubeNeedDelete.Add(cachedCube[i]);
}
}
}
if (cubeNeedDelete.Count > 0)
{
for (int j = 0; j < cubeNeedDelete.Count; j++)
{
QuadTreeSpaceCube c = cubeNeedDelete[j].mCube;
if (c.Release())
{
cachedCube.Remove(cubeNeedDelete[j]);
}
}
}
}
/// <summary>
/// 将场景节点加入到缓存中
/// </summary>
/// <param name="cube"></param>
public void AddToCache(QuadTreeSpaceCube cube)
{
cachedCube.Add(new CubeTime(cube, Time.unscaledTime));
cubeNeedDelete.Clear();
int exceed = cachedCube.Count - MAX_CACHE_NUM;// 超出了可用缓存的数量
if (exceed > 0)
{
for (int i = 0; i < cachedCube.Count; i++)
{
if (!cachedCube[i].mCube.IsShow)// 如果缓存中的节点没有显示，则将其添加到需要删除的列表中
{
cubeNeedDelete.Add(cachedCube[i]);
if (cubeNeedDelete.Count >= exceed)// 如果需要删除的节点释放后在最大缓存范围内
{
break;
}
}
}
}
if (cubeNeedDelete.Count > 0)
{
for (int j = 0; j < cubeNeedDelete.Count; j++)// 释放需要删除节点的资源
{
QuadTreeSpaceCube c = cubeNeedDelete[j].mCube;
if (c.Release())
{
cachedCube.Remove(cubeNeedDelete[j]);
}
}
}
}
/// <summary>
/// 移除对QuadTreeSpaceCube的监听
/// </summary>
/// <param name="cube"></param>
public void RemoveListener(QuadTreeSpaceCube cube)
{
if (!mIsListen)
{
return;
}
if (mListenerList.Contains(cube))
{
mListenerList.Remove(cube);
}
}
/// <summary>
/// 添加对QuadTreeSpaceCube的监听
/// </summary>
/// <param name="cube"></param>
public void AddListener(QuadTreeSpaceCube cube)
{
if (!mIsListen)
{
return;
}
if (!mListenerList.Contains(cube))
{
mListenerList.Add(cube);
mMaxListenerNum++;
}
}
public float mTime;// 加入缓存的时间
public CubeTime(QuadTreeSpaceCube cube, float time)
{
mCube = cube;
mTime = time;
}
