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fail miserably at parsing fen (i have failed in the same way like 7! times now)

This commit is contained in:
c0repwn3r 2023-02-12 22:19:20 -05:00
parent 530d316dc1
commit 73be31dd27
Signed by: core
GPG Key ID: FDBF740DADDCEECF
2 changed files with 39 additions and 3 deletions
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40
src/board.rs
View File

@ -90,7 +90,41 @@ impl Board {
let mut piecelist = Vec::new();
let mut bitfield = Boardfield::new();
let mut rank = 0;
let mut file = 0;
// parse component 1: piece data
for char in components[0].chars() {
match char {
'r' | 'n' | 'b' | 'q' | 'k' | 'p' | 'R' | 'N' | 'B' | 'Q' | 'K' | 'P' => {
piecelist.push(create_fen_piece(char, 8 - rank, file)?);
bitfield.set_pos(((8 - rank) + file * 8) - 1, create_bitfield_piece(char)?);
file += 1;
},
_ if char.is_numeric() => {
let num = char.to_digit(10).unwrap() as usize;
if !(1..=8).contains(&num) {
return Err(FENParseError::CannotSkipToOutsideOfBoard {got: num, which_is: num})
}
if file + num > 8 {
return Err(FENParseError::CannotSkipToOutsideOfBoard {got: num, which_is: file + num})
}
file += num;
},
'/' => {
if rank == 8 {
return Err(FENParseError::CannotSkipToOutsideOfBoard { got: 1, which_is: file + 1 })
}
rank += 1;
file = 0;
}
_ => return Err(FENParseError::InvalidPieceCharacter {got: char})
}
}
Ok(Self {
bitfield,
@ -133,14 +167,16 @@ fn create_bitfield_piece(c: char) -> Result<u8, FENParseError> {
'n' => Ok(PieceColor::Black as u8 | PieceType::Knight as u8),
'b' => Ok(PieceColor::Black as u8 | PieceType::Bishop as u8),
'q' => Ok(PieceColor::Black as u8 | PieceType::Queen as u8),
'k' => Ok(PieceColor::Black as u8 | PieceType::Knight as u8),
'k' => Ok(PieceColor::Black as u8 | PieceType::King as u8),
'p' => Ok(PieceColor::Black as u8 | PieceType::Pawn as u8),
'R' => Ok(PieceColor::White as u8 | PieceType::Rook as u8),
'N' => Ok(PieceColor::White as u8 | PieceType::Knight as u8),
'B' => Ok(PieceColor::White as u8 | PieceType::Bishop as u8),
'Q' => Ok(PieceColor::White as u8 | PieceType::Queen as u8),
'K' => Ok(PieceColor::White as u8 | PieceType::Knight as u8),
'K' => Ok(PieceColor::White as u8 | PieceType::King as u8),
'P' => Ok(PieceColor::White as u8 | PieceType::Pawn as u8),
_ => Err(FENParseError::InvalidPieceCharacter { got: c })
}
}

2
src/boardfield.rs
View File

@ -101,7 +101,7 @@ impl BoardfieldOps for Boardfield {
fn set_pos(&mut self, boardloc: usize, piece: u8) {
if boardloc > 63 {
panic!("boardloc out of range");
panic!("boardloc out of range {}", boardloc);
}
let field = self[boardloc / 2];