private DecDirections GetOppositeDirection(DecDirections direction)
{
switch (direction)
{
case DecDirections.Right:
return DecDirections.Left;
case DecDirections.Left:
return DecDirections.Right;
case DecDirections.Up:
return DecDirections.Down;
case DecDirections.Down:
return DecDirections.Up;
}
return DecDirections.Left;
}
/// <summary>
/// This method replaces two identical code parts
/// </summary>
private Point MoveTo(Point currentPoint, DecDirections direction)
{
Point result = currentPoint;
switch (direction)
{
case DecDirections.Down:
result.Y++;
break;
case DecDirections.Up:
result.Y--;
break;
case DecDirections.Left:
result.X--;
break;
case DecDirections.Right:
result.X++;
break;
}
return result;
}
private DecDirections GetNeighborDirection(DecDirections direction, int number)
{
switch (direction)
{
case DecDirections.Right:
if (number == 1)
return DecDirections.Up;
else
return DecDirections.Down;
case DecDirections.Left:
if (number == 1)
return DecDirections.Up;
else
return DecDirections.Down;
case DecDirections.Up:
if (number == 1)
return DecDirections.Left;
else
return DecDirections.Right;
case DecDirections.Down:
if (number == 1)
return DecDirections.Left;
else
return DecDirections.Right;
}
return DecDirections.Left;
}
