public static TubeInputs GetOposite(TubeInputs input)
{
TubeInputs oposite = 0;
switch (input)
{
case TubeInputs.Top:
oposite = TubeInputs.Bottom;
break;
case TubeInputs.Right:
oposite = TubeInputs.Left;
break;
case TubeInputs.Bottom:
oposite = TubeInputs.Top;
break;
case TubeInputs.Left:
oposite = TubeInputs.Right;
break;
}
return(oposite);
}
public WaterFlowIterator(ICell <ITube> cell, IBoard <ITube> board)
{
_start = cell;
_board = board;
_exclude = 0;
Current = _start;
}
private TubeInputs Rotate()
{
TubeInputs newInputs = 0;
if (_direction == RotationDirection.Clockwise)
{
if ((Owner.InternalInputs & TubeInputs.Top) == TubeInputs.Top)
{
newInputs |= TubeInputs.Right;
}
if ((Owner.InternalInputs & TubeInputs.Right) == TubeInputs.Right)
{
newInputs |= TubeInputs.Bottom;
}
if ((Owner.InternalInputs & TubeInputs.Bottom) == TubeInputs.Bottom)
{
newInputs |= TubeInputs.Left;
}
if ((Owner.InternalInputs & TubeInputs.Left) == TubeInputs.Left)
{
newInputs |= TubeInputs.Top;
}
}
else
{
if ((Owner.InternalInputs & TubeInputs.Top) == TubeInputs.Top)
{
newInputs |= TubeInputs.Left;
}
if ((Owner.InternalInputs & TubeInputs.Left) == TubeInputs.Left)
{
newInputs |= TubeInputs.Bottom;
}
if ((Owner.InternalInputs & TubeInputs.Bottom) == TubeInputs.Bottom)
{
newInputs |= TubeInputs.Right;
}
if ((Owner.InternalInputs & TubeInputs.Right) == TubeInputs.Right)
{
newInputs |= TubeInputs.Top;
}
}
return(newInputs);
}
public bool MoveNext()
{
var result = false;
var to = Current.Instance.Inputs ^ _exclude;
var column = Current.Column;
var row = Current.Row;
switch (to)
{
case TubeInputs.Top:
row--;
break;
case TubeInputs.Right:
column++;
break;
case TubeInputs.Bottom:
row++;
break;
case TubeInputs.Left:
column--;
break;
}
if (row >= 0 && row < _board.Rows &&
column >= 0 && column < _board.Columns &&
_board[column, row].Instance.Inputs.HasFlag(TubeInputsHelper.GetOposite(to)))
{
result = true;
_exclude = TubeInputsHelper.GetOposite(to);
Current = _board[column, row];
}
else
{
Current = null;
}
return(result);
}
public FakeTube(TubeInputs inputs)
{
Inputs = inputs;
}
