private void InitDepth()
{
List <TechNode> children = new List <TechNode>();
foreach (Transform child in transform)
{
TechNode node = child.GetComponent <TechNode>();
if (node)
{
node.InitDepth();
children.Add(node);
}
}
m_children = children.ToArray();
m_depth = 0;
for (int i = 0; i < m_children.Length; i++)
{
m_depth = Mathf.Max(m_depth, m_children[i].depth + 1);
}
}
