public bool Compare(MoveNotation target)
{
if (MoveType != target.MoveType)
{
return(false);
}
if (MoveType == NotatedMoveType.MoveStack)
{
if (UnstackDirection != target.UnstackDirection ||
Position != target.Position ||
UnstackCounts.Count != target.UnstackCounts.Count)
{
return(false);
}
for (int i = 0; i < UnstackCounts.Count; i++)
{
if (UnstackCounts[i] != target.UnstackCounts[i])
{
return(false);
}
}
return(true);
}
else
{
return(StoneType == target.StoneType && Position == target.Position);
}
}
public override void ExitSan_move(Generated.TakPGNParser.San_moveContext context)
{
var notationText = context.SYMBOL().GetText();
MoveNotation notation;
if (!MoveNotation.TryParse(notationText, out notation))
{
throw new ApplicationException("Unrecognized move notation: " + notationText);
}
_currentGame.MoveNotations.Add(notation);
base.ExitSan_move(context);
}
public static bool TryParse(string s, out MoveNotation notated)
{
notated = null;
// minimum move notation length
if (s.Length < 2)
{
throw new ApplicationException(s + " is too short: " + s.Length.ToString());
}
//return false;
notated = new MoveNotation();
notated.Text = s;
// try to find a direction
int dirIndex = s.IndexOfAny(Direction.DirName);
if (dirIndex >= 0)
{
notated.UnstackDirection = Array.IndexOf(Direction.DirName, s[dirIndex]);
notated.MoveType = NotatedMoveType.MoveStack;
// direction must be immediately preceded by position
int positionStart = dirIndex - 2;
if (positionStart < 0)
{
throw new ApplicationException(s + " doesn't have a valid position before the direction " + notated.UnstackDirection);
}
//return false;
if (!TryParsePosition(s, out notated.Position, index: positionStart))
{
return(false);
}
// Pickup count is optional if we're only picking up a single stone
if (positionStart == 0)
{
notated.PickupCount = 1;
}
// Otherwise we need to be able to parse the number of stones picked up
else if (!int.TryParse(s.Substring(0, positionStart), out notated.PickupCount))
{
throw new ApplicationException("Number of stones picked up doesn't look like an int: " + s.Substring(0, positionStart));
}
//return false;
// Paranoia
if (notated.PickupCount < 0 || notated.PickupCount > 8)
{
throw new ApplicationException("PickupCount is out of range: " + notated.PickupCount.ToString());
}
//return false;
notated.UnstackCounts = new List <int>(4);
int remaining = notated.PickupCount;
for (int i = dirIndex + 1; i < s.Length; i++)
{
int count = (int)(s[i] - '0');
if (count < 0 || count > remaining)
{
throw new ApplicationException("dropped more than remaining: " + count.ToString() + " vs. " + remaining.ToString());
}
//return false;
notated.UnstackCounts.Add(count);
remaining -= count;
if (remaining == 0)
{
// optional F, S, or C to indicate the top of the stack at the end of the move
if (i < s.Length - 2)
{
throw new ApplicationException("too many characters at the end of the string!");
}
//return false;
else if (i == s.Length - 2)
{
var c = s[i + 1];
if (c != 'F' && c != 'S' && c != 'C')
{
throw new ApplicationException("unrecognized stone type, don't know what to do with this");
}
//return false;
}
break;
}
}
// Drop count is optional if we're dropping all the stones we picked up on the first hop
if (remaining == notated.PickupCount)
{
notated.UnstackCounts.Add(remaining);
}
else if (remaining != 0)
{
throw new ApplicationException("didn't drop all stones - remaining count: " + remaining.ToString());
}
//return false;
return(true);
}
else
{
// no direction found, this must be a placement move
notated.MoveType = NotatedMoveType.Place;
if (s.Length > 3)
{
throw new ApplicationException("notation too long for placement");
}
//return false;
if (s.StartsWith("S"))
{
notated.StoneType = Piece.Stone_Standing;
}
else if (s.StartsWith("C"))
{
notated.StoneType = Piece.Stone_Cap;
}
else if (s.StartsWith("F") || s.Length == 2)
{
notated.StoneType = Piece.Stone_Flat;
}
else
{
throw new ApplicationException("unknown stone type prefix");
}
//return false;
if (!TryParsePosition(s, out notated.Position, index: s.Length - 2))
{
return(false);
}
return(true);
}
}
public static bool TryParse(string s, out MoveNotation notated)
{
notated = null;
// minimum move notation length
if (s.Length < 2)
{
return(false);
}
notated = new MoveNotation();
notated.Text = s;
// try to find a direction
int dirIndex = s.IndexOfAny(Direction.DirName);
if (dirIndex >= 0)
{
notated.UnstackDirection = Array.IndexOf(Direction.DirName, s[dirIndex]);
notated.MoveType = NotatedMoveType.MoveStack;
// direction must be immediately preceded by position
int positionStart = dirIndex - 2;
if (positionStart < 0)
{
return(false);
}
if (!TryParsePosition(s, out notated.Position, index: positionStart))
{
return(false);
}
// Pickup count is optional if we're only picking up a single stone
if (positionStart == 0)
{
notated.PickupCount = 1;
}
// Otherwise we need to be able to parse the number of stones picked up
else if (!int.TryParse(s.Substring(0, positionStart), out notated.PickupCount))
{
return(false);
}
// Paranoia
if (notated.PickupCount < 0 || notated.PickupCount > 8)
{
return(false);
}
notated.UnstackCounts = new List <int>(4);
int remaining = notated.PickupCount;
for (int i = dirIndex + 1; i < s.Length; i++)
{
int count = (int)(s[i] - '0');
if (count < 0 || count > remaining)
{
return(false);
}
notated.UnstackCounts.Add(count);
remaining -= count;
if (remaining == 0)
{
// optional F, S, or C to indicate the top of the stack at the end of the move
if (i < s.Length - 2)
{
// too many characters at the end of the string!
return(false);
}
else if (i == s.Length - 2)
{
var c = s[i + 1];
if (c != 'F' && c != 'S' && c != 'C')
{
// unrecognized stone type, don't know what to do with this
return(false);
}
}
break;
}
}
// Drop count is optional if we're only moving a single stone
if (notated.UnstackCounts.Count == 0 && remaining > 0)
{
notated.UnstackCounts.Add(remaining);
remaining = 0;
}
if (remaining != 0)
{
return(false);
}
return(true);
}
else
{
// no direction found, this must be a placement move
notated.MoveType = NotatedMoveType.Place;
if (s.Length > 3)
{
return(false);
}
if (s.StartsWith("S"))
{
notated.StoneType = Piece.Stone_Standing;
}
else if (s.StartsWith("C"))
{
notated.StoneType = Piece.Stone_Cap;
}
else if (s.StartsWith("F") || s.Length == 2)
{
notated.StoneType = Piece.Stone_Flat;
}
else
{
return(false);
}
if (!TryParsePosition(s, out notated.Position, index: s.Length - 2))
{
return(false);
}
return(true);
}
}
