public void ReleaseSphere(ICullingSystemListener listener)
{
if (cullingGroup == null)
{
return;
}
var sphereIndex = indices[listener];
cullingGroup.EraseSwapBack(sphereIndex);
indices[listeners[boundingSphereCount - 1]] = sphereIndex;
CullingGroup.EraseSwapBack(sphereIndex, listeners, ref boundingSphereCount);
}
public static int EraseSwapBack(IntPtr l)
{
int result;
try
{
CullingGroup cullingGroup = (CullingGroup)LuaObject.checkSelf(l);
int index;
LuaObject.checkType(l, 2, out index);
cullingGroup.EraseSwapBack(index);
LuaObject.pushValue(l, true);
result = 1;
}
catch (Exception e)
{
result = LuaObject.error(l, e);
}
return(result);
}
/// <summary>
/// 移除一个裁剪请求
/// </summary>
/// <param name="_cullingObject"></param>
public void RemoveRequest(IViewCullingObject _cullingObject)
{
var index = _cullingObject.index;
//如果Index为-1，说明根本就不在队列中
if (index != -1)
{
//从CullingGroup中移除该元素
cullingGroup.EraseSwapBack(index);
//减少数量，并且同步设置CullingGroup的数量
--currentRequestingCount;
cullingGroup.SetBoundingSphereCount(currentRequestingCount);
//CullingGroup中是将最后一个元素移动到当前元素进行替换的
//因此ViewCullingObjects这边也采取相同的措施
//并更新被替换的Object的Index
viewCullingObjects[index] = viewCullingObjects[currentRequestingCount];
viewCullingObjects[index].index = index;
//将申请者的Index设置为-1，表示其已经不属于列表内
_cullingObject.index = -1;
}
}
/// <summary>
/// Removes Bounding Sphere at specified Index and records that array position as available
/// </summary>
/// <param name="index">Index of Bounding Sphere to remove</param>
public void RemoveSphere(int index)
{
//only do this if the index exists
if (!cullGroupBehaveDict.ContainsKey(index))
{
return;
}
//clearedSpaces.Enqueue(index);//record that this space is open if we add a new Bounding Sphere later
//cullGroupBehaveDict.Remove(index);
//remove the desired Bounding Sphere by moving the last Bounding Sphere on top of it
cullGroup.EraseSwapBack(index);
//update the information on the Culling Group Behaviour to preserve callback functionality
cullGroupBehaveDict[index] = cullGroupBehaveDict[cullGroupBehaveDict.Count - 1];
cullGroupBehaveDict[index].boundingSphereIndex = index;
//remove the old Culling Group Behaviour from the callback Dictionary
//cullGroupBehaveDict[cullGroupBehaveDict.Count - 1] = null;
cullGroupBehaveDict.Remove(cullGroupBehaveDict.Count - 1);
}
