public AnalyzerCanvas(int numRows, int numColumns, AnalyzerCanvasNode[] nodes)
{
this.currentPosition = new RowColumnPosition(0, 0);
this.numRows = numRows;
this.numColumns = numColumns;
this.nodes = nodes;
}
private AnalyzerCanvasNode this[RowColumnPosition position]
{
get { return nodes[position.Row * numColumns + position.Column]; }
}
private bool TryMove(RowColumnPosition position)
{
if (position.Row < 0 || position.Row >= numRows)
{
return false;
}
else if (position.Column < 0 || position.Column >= numColumns)
{
return false;
}
else if (this[position].IsVisited)
{
return false;
}
else if (this[position].IsWhite)
{
return false;
}
else
{
currentPosition = position;
return true;
}
}
private void ForceMove(RowColumnPosition position)
{
if (position.Row < 0 || position.Row >= numRows)
{
throw new ArgumentOutOfRangeException("position.Row");
}
else if (position.Column < 0 || position.Column >= numColumns)
{
throw new ArgumentOutOfRangeException("position.Column");
}
else
{
currentPosition = position;
}
}