T[] GetCollisionObjectsFromAChild(Vector2 checkPoint, float checkRadius, QuadtreeAction <T> child)
{
if (child._field.PointToFieldDistance(checkPoint) <= _maxRadius + checkRadius)
{
return(child.CheckCollision(checkPoint, checkRadius));
}
return(new T[0]);
}
public QuadtreeAction(float top, float right, float bottom, float left, int maxLeafNumber, float minSideLength, QuadtreeAction <T> root = null, QuadtreeAction <T> parent = null)
{
_field = new QuadtreeFieldAction(top, right, bottom, left);
_maxLeafsNumber = maxLeafNumber;
_minSideLength = minSideLength;
_root = root != null ? root : this;
_parent = parent;
}
void Split()
{
Debug.Log("<color=#808000>位置在" + _field.top + "," + _field.right + "," + _field.bottom + "," + _field.left + "的树梢节点达到分割条件，进行分割</color>");
Update();
float xCenter = (_field.left + _field.right) / 2;
float yCenter = (_field.bottom + _field.top) / 2;
_upperRightChild = new QuadtreeAction <T>(_field.top, _field.right, yCenter, xCenter, _maxLeafsNumber, _minSideLength, _root, this);
_lowerRightChild = new QuadtreeAction <T>(yCenter, _field.right, _field.bottom, xCenter, _maxLeafsNumber, _minSideLength, _root, this);
_lowerLeftChild = new QuadtreeAction <T>(yCenter, xCenter, _field.bottom, _field.left, _maxLeafsNumber, _minSideLength, _root, this);
_upperLeftChild = new QuadtreeAction <T>(_field.top, xCenter, yCenter, _field.left, _maxLeafsNumber, _minSideLength, _root, this);
foreach (QuadtreeLeafAction <T> leaf in _leafs)
{
SetLeafToChildren(leaf);
}
_leafs = null;
}
private void Awake()
{
_quadtree = new QuadtreeAction <GameObject>(_top, _right, _bottom, _left, _maxLeafsNumber, _minSideLength);
}