henri/trictrac
1
1
Fork 0
Code Issues 10 Pull requests Projects 1 Releases Packages Wiki Activity Actions

feat: add GameState::from_string_id

Browse source
This commit is contained in:
Henri Bourcereau 2025-08-30 14:09:57 +02:00
parent 7a501c90ea
commit 41383eddf6
4 changed files with 166 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

49
store/src/board.rs
View file

@ -639,6 +639,55 @@ impl Board {
self.positions[field - 1] += unit;
Ok(())
}
pub fn from_gnupg_pos_id(bits: &str) -> Result<Board, String> {
let mut positions = [0i8; 24];
let mut bit_idx = 0;
let bit_chars: Vec<char> = bits.chars().collect();
// White checkers (points 1 to 24)
for i in 0..24 {
if bit_idx >= bit_chars.len() {
break;
}
let mut count = 0;
while bit_idx < bit_chars.len() && bit_chars[bit_idx] == '1' {
count += 1;
bit_idx += 1;
}
positions[i] = count;
if bit_idx < bit_chars.len() && bit_chars[bit_idx] == '0' {
bit_idx += 1; // Consume the '0' separator
}
}
// Black checkers (points 24 down to 1)
for i in (0..24).rev() {
if bit_idx >= bit_chars.len() {
break;
}
let mut count = 0;
while bit_idx < bit_chars.len() && bit_chars[bit_idx] == '1' {
count += 1;
bit_idx += 1;
}
if positions[i] == 0 {
positions[i] = -count;
} else if count > 0 {
return Err(format!(
"Invalid board: checkers of both colors on point {}",
i + 1
));
}
if bit_idx < bit_chars.len() && bit_chars[bit_idx] == '0' {
bit_idx += 1; // Consume the '0' separator
}
}
Ok(Board { positions })
}
}
// Unit Tests