/// <summary>
/// Use for a 'step by step' search only. This method is alternate to SearchPath.
/// Initializes AStar before performing search steps manually with NextStep.
/// </summary>
/// <exception cref="ArgumentNullException">StartNode and EndNode cannot be null.</exception>
/// <param name="StartNode">The node from which the path must start.</param>
/// <param name="EndNode">The node to which the path must end.</param>
public void Initialize(Node StartNode, Node EndNode)
{
if (StartNode == null || EndNode == null)
{
throw new ArgumentNullException();
}
_Closed.Clear();
_Open.Clear();
Track.Target = EndNode;
_Open.Add(new Track(StartNode));
_NbIterations = 0;
_LeafToGoBackUp = null;
}
public bool ContainsPoint(List <Point2> _polygon, Point2 _target)
{
int len = _polygon.Count;
for (int i = 0; i < len; i++)
{
m_rowPoints.Add(_polygon[i]);
}
//ShowPoints("-----polygon points-----");
m_rowPoints.Add(_target);
//sort from left to right
m_rowPoints.QuickSort();
//ShowPoints("-----sorted points-----");
//sweep from left to right
int _bufLen = m_rowPoints.Count;
bool _result = false;
for (int i = 0; i < _bufLen; i++)
{
Point2 _pI = m_rowPoints[i];
if (_pI == _target)
{
_result = m_sweepLine0.InoutOf(_target) == InOut.In;
break;
}
Point2 _pIL = _pI.m_left;
Point2 _pIR = _pI.m_right;
Vector2 _pIV = _pI.getValue();
Vector2 _toLeft = _pIL.getValue() - _pIV;
Vector2 _toRight = _pIR.getValue() - _pIV;
if (_toLeft.x > 0 && _toRight.x > 0) //Open Site,add double slope
{
m_sweepLine0.OpenRegion(_pI);
}
else if (_toLeft.x < 0 && _toRight.x < 0) //Close Site,remove double slopes
{
m_sweepLine0.CloseRegion(_pI, _toLeft, _toRight);
}
else //Turn Site,add single slope
{
m_sweepLine0.TurnReion(_pI);
}
}
m_rowPoints.Clear();
m_sweepLine0.Clear();
return(_result);
}
public void Clear()
{
foreach (var item in m_sweepRegions)
{
SlopeRegion.Pool.GiveBack(item);
}
m_sweepRegions.Clear();
}
