public MTQuadTreeNode(int depth, Vector3 min, Vector3 max)
{
Vector3 center = 0.5f * (min + max);
Vector3 size = max - min;
Bound = new Bounds(center, size);
if (depth > 0)
{
mSubNode = new MTQuadTreeNode[4];
Vector3 subMin = new Vector3(center.x - 0.5f * size.x, min.y, center.z - 0.5f * size.z);
Vector3 subMax = new Vector3(center.x, max.y, center.z);
mSubNode[0] = new MTQuadTreeNode(depth - 1, subMin, subMax);
subMin = new Vector3(center.x, min.y, center.z - 0.5f * size.z);
subMax = new Vector3(center.x + 0.5f * size.x, max.y, center.z);
mSubNode[1] = new MTQuadTreeNode(depth - 1, subMin, subMax);
subMin = new Vector3(center.x - 0.5f * size.x, min.y, center.z);
subMax = new Vector3(center.x, max.y, center.z + 0.5f * size.z);
mSubNode[2] = new MTQuadTreeNode(depth - 1, subMin, subMax);
subMin = new Vector3(center.x, min.y, center.z);
subMax = new Vector3(center.x + 0.5f * size.x, max.y, center.z + 0.5f * size.z);
mSubNode[3] = new MTQuadTreeNode(depth - 1, subMin, subMax);
}
}
protected MTQuadTreeNode[] m_SubNodes;//四个子Node
public MTQuadTreeNode(int depth, Vector3 min, Vector3 max, Vector3 offset)
{
Vector3 center = 0.5f * (min + max);
Vector3 size = max - min;
Bound = new Bounds(center + offset, size);
Offset = offset;
if (depth > 0)
{
m_SubNodes = new MTQuadTreeNode[4];
Vector3 subMin = new Vector3(center.x - 0.5f * size.x, min.y, center.z - 0.5f * size.z);
Vector3 subMax = new Vector3(center.x, max.y, center.z);
m_SubNodes[0] = new MTQuadTreeNode(depth - 1, subMin, subMax, offset);
subMin = new Vector3(center.x, min.y, center.z - 0.5f * size.z);
subMax = new Vector3(center.x + 0.5f * size.x, max.y, center.z);
m_SubNodes[1] = new MTQuadTreeNode(depth - 1, subMin, subMax, offset);
subMin = new Vector3(center.x - 0.5f * size.x, min.y, center.z);
subMax = new Vector3(center.x, max.y, center.z + 0.5f * size.z);
m_SubNodes[2] = new MTQuadTreeNode(depth - 1, subMin, subMax, offset);
subMin = new Vector3(center.x, min.y, center.z);
subMax = new Vector3(center.x + 0.5f * size.x, max.y, center.z + 0.5f * size.z);
m_SubNodes[3] = new MTQuadTreeNode(depth - 1, subMin, subMax, offset);
}
}