/// <summary>
/// 获取或修改子结点
/// </summary>
/// <param name="direction"></param>
/// <returns></returns>
public QuadNode this[QuadNodeDirection direction]
{
get
{
if (IsLeaf)
{
return(null);
}
return(ChildNodes[(int)direction - 1]);
}
internal set
{
ChildNodes[(int)direction - 1] = value;
if (value != null)
{
value.ParentNode = this;
}
}
}
/// <summary>
/// 设置结点中的数据，为了节省内存已创建的结点将会使用缓存池循环使用
/// </summary>
/// <param name="depth"></param>
/// <param name="direction"></param>
/// <param name="bounds"></param>
internal void SetData(int depth, QuadNodeDirection direction, AABB2D bounds)
{
Depth = depth;
Bounds = bounds;
Direction = direction;
}