Bruno BELANYI
93d255623b
Use 'pcg64_fast' for RNG
...
ci/woodpecker/push/check Pipeline was successful
This is a higher quality source of randomness than a XOR-shift
generator, while still being fast and easy to write.
2024-04-06 19:38:10 +01:00
Bruno BELANYI
7dd0da6628
Simplify error-handling in seed generation
2024-04-06 19:22:16 +01:00
Bruno BELANYI
a667e6b7f2
Move RNG code to its own module
2024-04-06 17:59:14 +01:00
Bruno BELANYI
85ac65408f
Remove unused 'en_passant_origins'
...
I don't think I'll need it after all.
2024-04-06 12:50:31 +01:00
Bruno BELANYI
d74605ba5c
Use 'NUM_VARIANTS' where appropriate
2024-04-03 21:26:18 +01:00
Bruno BELANYI
388c26f4ac
Use 'writeln' in magic seed generation
2024-04-03 20:01:00 +01:00
Bruno BELANYI
52772167a6
Pre-generate the magic bitboard seeds
...
My naive RNG implementation takes about ~40 seconds to generate the
magic bitboards for both bishops and rooks (or ~1 second in release
mode).
If we pre-generate the seeds, we can instead make it ~instantaneous.
The self-modifying code is inspired by matklad [1].
[1]: https://matklad.github.io/2022/03/26/self-modifying-code.html
2024-04-01 22:20:39 +01:00
Bruno BELANYI
072a1ea13c
Add '*Assign' operators to 'Bitboard'
2024-04-01 22:20:39 +01:00
Bruno BELANYI
02768b6d96
Remove all useless 'allow(unused)'
2024-04-01 22:20:39 +01:00
Bruno BELANYI
af421a9452
Tighten item visibilities
2024-04-01 22:20:39 +01:00
Bruno BELANYI
06087358de
Add bitboard-based move generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI
459b878342
Expose magic bitboard generation to parent module
2024-04-01 22:20:39 +01:00
Bruno BELANYI
2bdfbbf467
Add 'MagicMoves'
2024-04-01 22:20:39 +01:00
Bruno BELANYI
d519cfb817
Make 'Magic' 'pub(crate)'
2024-04-01 22:20:39 +01:00
Bruno BELANYI
25494700d7
Add missing derives to 'Magic'
2024-04-01 22:20:39 +01:00
Bruno BELANYI
028c4543e7
Move 'Magic' to 'wizardry' submodule
2024-04-01 22:20:39 +01:00
Bruno BELANYI
868edda9d7
Move naive move generation into sub-module
2024-04-01 22:20:39 +01:00
Bruno BELANYI
23d01d4d3f
Make all modules at least 'pub(crate)'
2024-04-01 22:20:39 +01:00
Bruno BELANYI
066d442823
Add magic bitboard generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI
5ef3737b98
Make 'Magic' fields 'pub(crate)'
2024-04-01 22:20:39 +01:00
Bruno BELANYI
1951db0720
Add magic mask generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI
2601abdc76
Add 'Magic' type
2024-04-01 22:20:39 +01:00
Bruno BELANYI
d3a84750f5
Add naive pawn move generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI
bf23d0eaae
Add naive rook move generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI
8ff47231a0
Add naive bishop move generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI
f0847a4e49
Add naive knight move generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI
d91f63b5ed
Add naive king move generation
2024-04-01 22:20:39 +01:00
Bruno BELANYI