make blokus in rust

This commit is contained in:
Noa Aarts 2025-12-05 15:10:02 +01:00
parent 98f161c620
commit eca2b4acb8
Signed by: noa
GPG key ID: 1850932741EFF672
11 changed files with 706 additions and 156 deletions

1
.envrc
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@ -1 +1,2 @@
use flake
source .venv/bin/activate

177
blokus.py
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@ -1,159 +1,30 @@
#!/usr/bin/env python
from typing import Any
import numpy as np
import random
import game
BOARD_SIZE = 14
def make_board():
a = np.array([[0 for i in range(BOARD_SIZE)] for j in range(BOARD_SIZE)])
a[4, 4] = -1
a[9, 9] = -1
return a
tiles = [
np.array([[1]]),
np.array([[1], [1]]),
np.array([[1], [1], [1]]),
np.array([[1, 0], [1, 1]]),
np.array([[1], [1], [1], [1]]),
np.array([[1, 0], [1, 0], [1, 1]]),
np.array([[1, 0], [1, 1], [1, 0]]),
np.array([[1, 1], [1, 1]]),
np.array([[1, 1, 0], [0, 1, 1]]),
np.array([[1], [1], [1], [1], [1]]),
np.array([[1, 0], [1, 0], [1, 0], [1, 1]]),
np.array([[1, 0], [1, 0], [1, 1], [0, 1]]),
np.array([[1, 0], [1, 1], [1, 1]]),
np.array([[1, 1], [1, 0], [1, 1]]),
np.array([[1, 0], [1, 1], [1, 0], [1, 0]]),
np.array([[0, 1, 0], [0, 1, 0], [1, 1, 1]]),
np.array([[1, 0, 0], [1, 0, 0], [1, 1, 1]]),
np.array([[1, 1, 0], [0, 1, 1], [0, 0, 1]]),
np.array([[1, 0, 0], [1, 1, 1], [0, 0, 1]]),
np.array([[1, 0, 0], [1, 1, 1], [0, 1, 0]]),
np.array([[0, 1, 0], [1, 1, 1], [0, 1, 0]]),
]
def get_permutations(which_tiles: list[int]) -> list[tuple[int, np.ndarray]]:
permutations: list[tuple[int, np.ndarray]] = []
for i, tile in enumerate(tiles):
if i not in which_tiles:
continue
rots = [np.rot90(tile, k) for k in range(4)]
flips = [np.flip(r, axis=1) for r in rots] # flip horizontally
all_orients = rots + flips # 8 orientations
seen: set[tuple[Any, bytes]] = set()
for t in all_orients:
key = (t.shape, t.tobytes())
if key not in seen:
seen.add(key)
permutations.append((i, t))
return permutations
tiles = game.game_tiles()
def can_place(
board: np.ndarray, tile: np.ndarray, player: int
board: game.Board, tile: game.Tile, player: game.Player
) -> list[tuple[int, int]]:
placements: list[tuple[int, int]] = []
has_minus_one = False
for x in range(BOARD_SIZE):
for y in range(BOARD_SIZE):
if board[x, y] == -1:
has_minus_one = True
with np.nditer(tile, flags=["multi_index"]) as it:
for v in it:
if v == 1:
(i, j) = it.multi_index
if x + i >= BOARD_SIZE:
break
if y + j >= BOARD_SIZE:
break
if board[x + i][y + j] > 0:
break
if x + i - 1 >= 0 and board[x + i - 1][y + j] == player:
break
if y + j - 1 >= 0 and board[x + i][y + j - 1] == player:
break
if x + i + 1 < BOARD_SIZE and board[x + i + 1][y + j] == player:
break
if y + j + 1 < BOARD_SIZE and board[x + i][y + j + 1] == player:
break
else:
placements.append((x, y))
final: list[tuple[int, int]] = []
if has_minus_one:
for x, y in placements:
with np.nditer(tile, flags=["multi_index"]) as it:
for v in it:
(i, j) = it.multi_index
if v == 1 and board[x + i, y + j] == -1:
final.append((x, y))
break
else:
for x, y in placements:
with np.nditer(tile, flags=["multi_index"]) as it:
for v in it:
(i, j) = it.multi_index
if (
x + i + 1 < BOARD_SIZE
and y + j + 1 < BOARD_SIZE
and board[x + i + 1][y + j + 1] == player
):
final.append((x, y))
break
if (
x + i + 1 < BOARD_SIZE
and y + j - 1 >= 0
and board[x + i + 1][y + j - 1] == player
):
final.append((x, y))
break
if (
x + i - 1 >= 0
and y + j + 1 < BOARD_SIZE
and board[x + i - 1][y + j + 1] == player
):
final.append((x, y))
break
if (
x + i - 1 >= 0
and y + j - 1 >= 0
and board[x + i - 1][y + j - 1] == player
):
final.append((x, y))
break
return final
placements = []
placements.extend
def do_placement(
tidx: int,
tile: np.ndarray,
placement: tuple[int, int],
game_state: tuple[np.ndarray, list[int], list[int]],
player: int,
):
assert player > 0
(x, y) = placement
with np.nditer(tile, flags=["multi_index"]) as it:
for v in it:
(i, j) = it.multi_index
if v == 1:
game_state[0][x + i, y + j] = player
game_state[player].remove(tidx)
def print_game_state(game_state: tuple[np.ndarray, list[int], list[int]]):
def print_game_state(game_state: tuple[game.Board, list[int], list[int]]):
(board, p1tiles, p2tiles) = game_state
for row in board:
barr = []
for i in range(BOARD_SIZE):
barr.append([])
for j in range(BOARD_SIZE):
barr[i].append(board[(j, i)])
for row in barr:
print(
"".join(
[
@ -169,7 +40,7 @@ def print_game_state(game_state: tuple[np.ndarray, list[int], list[int]]):
game_state = (
make_board(),
game.Board(),
[i for i in range(21)],
[i for i in range(21)],
)
@ -179,12 +50,15 @@ playing = True
player = 1
while playing:
moves = []
assert player > 0
for tidx, tile in get_permutations(game_state[player]):
for placement in can_place(game_state[0], tile, player):
moves.append((tidx, tile, placement))
assert player == 1 or player == 2
gp = game.Player.P1 if player == 1 else game.Player.P2
for tile_idx in game_state[player]:
tile = tiles[tile_idx]
perms = tile.permutations()
for perm in perms:
plcs = game_state[0].tile_placements(perm, gp)
moves.extend((tile_idx, perm, plc) for plc in plcs)
print_game_state(game_state)
print(f"player {player} has {len(moves)} options")
if len(moves) == 0:
@ -193,7 +67,12 @@ while playing:
continue
(tidx, tile, placement) = random.choice(moves)
do_placement(tidx, tile, placement, game_state, player)
print(
f"player {player} is placing the following tile with index {tidx} at {placement}\n{tile}"
)
game_state[0].place(tile, placement, gp)
game_state[player].remove(tidx)
print_game_state(game_state)
if player == 1:
player = 2

70
flake.lock generated
View file

@ -1,6 +1,56 @@
{
"nodes": {
"fix-py": {
"inputs": {
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs"
},
"locked": {
"lastModified": 1752329544,
"narHash": "sha256-LtZyywexRDB5FFmEU6A1e5tMIb0MX8/xxpjCHonUzYE=",
"owner": "GuillaumeDesforges",
"repo": "fix-python",
"rev": "248e2ea9620faee9b8a2ae10e12320de2a819fe9",
"type": "github"
},
"original": {
"owner": "GuillaumeDesforges",
"repo": "fix-python",
"type": "github"
}
},
"flake-utils": {
"inputs": {
"systems": "systems"
},
"locked": {
"lastModified": 1689068808,
"narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
"type": "github"
},
"original": {
"id": "flake-utils",
"type": "indirect"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1682786779,
"narHash": "sha256-m7QFzPS/CE8hbkbIVK4UStihAQMtczr0vSpOgETOM1g=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "08e4dc3a907a6dfec8bb3bbf1540d8abbffea22b",
"type": "github"
},
"original": {
"id": "nixpkgs",
"type": "indirect"
}
},
"nixpkgs_2": {
"locked": {
"lastModified": 1764167966,
"narHash": "sha256-nXv6xb7cq+XpjBYIjWEGTLCqQetxJu6zvVlrqHMsCOA=",
@ -18,8 +68,9 @@
},
"root": {
"inputs": {
"nixpkgs": "nixpkgs",
"systems": "systems"
"fix-py": "fix-py",
"nixpkgs": "nixpkgs_2",
"systems": "systems_2"
}
},
"systems": {
@ -36,6 +87,21 @@
"repo": "default",
"type": "github"
}
},
"systems_2": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
}
},
"root": "root",

View file

@ -2,10 +2,11 @@
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
systems.url = "github:nix-systems/default";
fix-py.url = "github:GuillaumeDesforges/fix-python";
};
outputs =
{ nixpkgs, ... }:
{ nixpkgs, fix-py, ... }:
let
eachSystem =
f:
@ -15,10 +16,10 @@
devShells = eachSystem (pkgs: {
default = pkgs.mkShell {
buildInputs = [
(pkgs.python3.withPackages (ppkgs: [
ppkgs.numpy
ppkgs.torch
]))
pkgs.cargo
pkgs.rustc
pkgs.stdenv.cc.cc.lib
fix-py.packages.${pkgs.system}.default
];
};
});

72
game/.gitignore vendored Normal file
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@ -0,0 +1,72 @@
/target
# Byte-compiled / optimized / DLL files
__pycache__/
.pytest_cache/
*.py[cod]
# C extensions
*.so
# Distribution / packaging
.Python
.venv/
env/
bin/
build/
develop-eggs/
dist/
eggs/
lib/
lib64/
parts/
sdist/
var/
include/
man/
venv/
*.egg-info/
.installed.cfg
*.egg
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
pip-selfcheck.json
# Unit test / coverage reports
htmlcov/
.tox/
.coverage
.cache
nosetests.xml
coverage.xml
# Translations
*.mo
# Mr Developer
.mr.developer.cfg
.project
.pydevproject
# Rope
.ropeproject
# Django stuff:
*.log
*.pot
.DS_Store
# Sphinx documentation
docs/_build/
# PyCharm
.idea/
# VSCode
.vscode/
# Pyenv
.python-version

173
game/Cargo.lock generated Normal file
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@ -0,0 +1,173 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
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"once_cell",
"portable-atomic",
"pyo3-build-config",
"pyo3-ffi",
"pyo3-macros",
"unindent",
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name = "pyo3-build-config"
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12
game/Cargo.toml Normal file
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@ -0,0 +1,12 @@
[package]
name = "game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[lib]
name = "game"
crate-type = ["cdylib"]
[dependencies]
pyo3 = "0.25.0"

15
game/pyproject.toml Normal file
View file

@ -0,0 +1,15 @@
[build-system]
requires = ["maturin>=1.9,<2.0"]
build-backend = "maturin"
[project]
name = "game"
requires-python = ">=3.8"
classifiers = [
"Programming Language :: Rust",
"Programming Language :: Python :: Implementation :: CPython",
"Programming Language :: Python :: Implementation :: PyPy",
]
dynamic = ["version"]
[tool.maturin]
features = ["pyo3/extension-module"]

323
game/src/lib.rs Normal file
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@ -0,0 +1,323 @@
use pyo3::prelude::*;
#[pymodule]
mod game {
use pyo3::{exceptions::PyIndexError, prelude::*, types::PySequence};
use std::{
collections::HashSet,
fmt::{Display, Formatter},
ops::{Index, IndexMut},
};
const BOARD_SIZE: usize = 14;
const START_SQUARES: [(usize, usize); 2] = [(4, 4), (9, 9)];
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum Square {
Start,
Empty,
Player(Player),
}
impl Square {
fn is_player(&self, player: Player) -> bool {
match self {
Square::Player(p) if *p == player => true,
_ => false,
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[pyclass]
enum Player {
P1,
P2,
}
#[derive(Debug, Clone, PartialEq)]
#[pyclass(str)]
struct Tile {
parts: HashSet<(usize, usize)>,
size: (usize, usize),
}
impl Display for Tile {
fn fmt(&self, fmt: &mut Formatter) -> Result<(), std::fmt::Error> {
let (xs, ys) = self.size;
let mut vvec = Vec::new();
for _ in 0..=ys {
let mut vec = Vec::new();
for _ in 0..=xs {
vec.push(" ")
}
vvec.push(vec)
}
for &(x, y) in self.parts.iter() {
vvec[y][x] = "██"
}
// Print the grid
for row in vvec {
for cell in row {
write!(fmt, "{}", cell)?;
}
writeln!(fmt)?; // Newline per row
}
Ok(())
}
}
#[pyfunction]
fn game_tiles() -> Vec<Tile> {
vec![
Tile::new(vec![vec![1]]),
Tile::new(vec![vec![1], vec![1]]),
Tile::new(vec![vec![1], vec![1], vec![1]]),
Tile::new(vec![vec![1, 0], vec![1, 1]]),
Tile::new(vec![vec![1], vec![1], vec![1], vec![1]]),
Tile::new(vec![vec![1, 0], vec![1, 0], vec![1, 1]]),
Tile::new(vec![vec![1, 0], vec![1, 1], vec![1, 0]]),
Tile::new(vec![vec![1, 1], vec![1, 1]]),
Tile::new(vec![vec![1, 1, 0], vec![0, 1, 1]]),
Tile::new(vec![vec![1], vec![1], vec![1], vec![1], vec![1]]),
Tile::new(vec![vec![1, 0], vec![1, 0], vec![1, 0], vec![1, 1]]),
Tile::new(vec![vec![1, 0], vec![1, 0], vec![1, 1], vec![0, 1]]),
Tile::new(vec![vec![1, 0], vec![1, 1], vec![1, 1]]),
Tile::new(vec![vec![1, 1], vec![1, 0], vec![1, 1]]),
Tile::new(vec![vec![1, 0], vec![1, 1], vec![1, 0], vec![1, 0]]),
Tile::new(vec![vec![0, 1, 0], vec![0, 1, 0], vec![1, 1, 1]]),
Tile::new(vec![vec![1, 0, 0], vec![1, 0, 0], vec![1, 1, 1]]),
Tile::new(vec![vec![1, 1, 0], vec![0, 1, 1], vec![0, 0, 1]]),
Tile::new(vec![vec![1, 0, 0], vec![1, 1, 1], vec![0, 0, 1]]),
Tile::new(vec![vec![1, 0, 0], vec![1, 1, 1], vec![0, 1, 0]]),
Tile::new(vec![vec![0, 1, 0], vec![1, 1, 1], vec![0, 1, 0]]),
]
}
#[pymethods]
impl Tile {
#[new]
fn new(arr: Vec<Vec<usize>>) -> Self {
let mut parts = HashSet::new();
for (y, row) in arr.iter().enumerate() {
for (x, val) in row.iter().enumerate() {
if *val != 0 {
parts.insert((x, y));
}
}
}
let xs = parts
.iter()
.max_by(|x, y| x.0.cmp(&y.0))
.unwrap_or(&(0, 0))
.0;
let ys = parts
.iter()
.max_by(|x, y| x.1.cmp(&y.1))
.unwrap_or(&(0, 0))
.1;
Tile {
parts,
size: (xs, ys),
}
}
fn permutations(&self) -> Vec<Tile> {
let mut vfinal = Vec::new();
for val in vec![
self.clone(),
self.rotate(),
self.rotate().rotate(),
self.rotate().rotate().rotate(),
self.flip(),
self.rotate().flip(),
self.rotate().rotate().flip(),
self.rotate().rotate().rotate().flip(),
] {
if !vfinal.contains(&val) {
vfinal.push(val);
}
}
vfinal
}
fn flip(&self) -> Self {
let (xs, ys) = self.size;
let v = self.parts.iter().map(|&(i, j)| (xs - i, j)).collect();
Tile {
parts: v,
size: (xs, ys),
}
}
fn rotate(&self) -> Self {
let (xs, ys) = self.size;
let v = self
.parts
.iter()
.map(|&(i, j)| (j, self.size.0 - i))
.collect();
Tile {
parts: v,
size: (ys, xs),
}
}
}
#[pyclass]
#[derive(Clone)]
struct Board {
tiles: [[Square; BOARD_SIZE]; BOARD_SIZE],
}
impl Index<(usize, usize)> for Board {
type Output = Square;
fn index(&self, index: (usize, usize)) -> &Self::Output {
&self.tiles[index.1][index.0]
}
}
impl IndexMut<(usize, usize)> for Board {
fn index_mut(&mut self, index: (usize, usize)) -> &mut Self::Output {
&mut self.tiles[index.1][index.0]
}
}
#[pymethods]
impl Board {
#[new]
fn new() -> Self {
let mut board = Board {
tiles: [[Square::Empty; BOARD_SIZE]; BOARD_SIZE],
};
for sq in START_SQUARES {
board[sq] = Square::Start
}
board
}
fn __len__(&self) -> PyResult<usize> {
Ok(BOARD_SIZE * BOARD_SIZE)
}
fn __getitem__(&self, idx: (isize, isize)) -> PyResult<usize> {
let (x, y) = idx;
if x >= BOARD_SIZE as isize {
return Err(PyIndexError::new_err("x is larger than BOARD_SIZE"));
}
if y >= BOARD_SIZE as isize {
return Err(PyIndexError::new_err("y is larger than BOARD_SIZE"));
}
if x < -(BOARD_SIZE as isize) {
return Err(PyIndexError::new_err("x is smaller than -BOARD_SIZE"));
}
if y < -(BOARD_SIZE as isize) {
return Err(PyIndexError::new_err("y is smaller than -BOARD_SIZE"));
}
let sq = self[(
((x + BOARD_SIZE as isize) % BOARD_SIZE as isize) as usize,
((y + BOARD_SIZE as isize) % BOARD_SIZE as isize) as usize,
)];
Ok(match sq {
Square::Start => 3,
Square::Empty => 0,
Square::Player(Player::P1) => 1,
Square::Player(Player::P2) => 2,
})
}
fn place(&mut self, tile: Tile, pos: (usize, usize), player: Player) {
let (x, y) = pos;
for &(i, j) in tile.parts.iter() {
assert!(
self[(x + i, y + j)] == Square::Empty || self[(x + i, y + j)] == Square::Start,
"Can't put a tile in a place where it collides with another"
);
self[(x + i, y + j)] = Square::Player(player)
}
}
fn tile_placements(&self, tile: Tile, player: Player) -> Vec<(usize, usize)> {
let mut starting = false;
for sq in START_SQUARES {
if self[sq] == Square::Start {
starting = true;
break;
}
}
let mut possible_placements = Vec::new();
for y in 0..BOARD_SIZE {
for x in 0..BOARD_SIZE {
let mut can_place = true;
let mut on_start = false;
'inner: for &(i, j) in tile.parts.iter() {
if x + i >= BOARD_SIZE {
can_place = false;
break 'inner;
}
if y + j >= BOARD_SIZE {
can_place = false;
break 'inner;
}
if self[(x + i, y + j)] == Square::Start {
on_start = true;
}
if let Square::Player(_p) = self[(x + i, y + j)] {
can_place = false;
break 'inner;
}
if x + i >= 1 && self[(x + i - 1, y + j)] == Square::Player(player) {
can_place = false;
break 'inner;
}
if y + j >= 1 && self[(x + i, y + j - 1)] == Square::Player(player) {
can_place = false;
break 'inner;
}
if x + i + 1 < BOARD_SIZE
&& self[(x + i + 1, y + j)] == Square::Player(player)
{
can_place = false;
break 'inner;
}
if y + j + 1 < BOARD_SIZE
&& self[(x + i, y + j + 1)] == Square::Player(player)
{
can_place = false;
break 'inner;
}
}
if can_place {
if starting {
if on_start {
possible_placements.push((x, y));
}
} else {
for &(i, j) in tile.parts.iter() {
if (x + i + 1 < BOARD_SIZE
&& y + j + 1 < BOARD_SIZE
&& self[(x + i + 1, y + j + 1)].is_player(player))
|| (x + i + 1 < BOARD_SIZE
&& y + j >= 1
&& self[(x + i + 1, y + j - 1)].is_player(player))
|| (x + i >= 1
&& y + j + 1 < BOARD_SIZE
&& self[(x + i - 1, y + j + 1)].is_player(player))
|| (x + i >= 1
&& y + j >= 1
&& self[(x + i - 1, y + j - 1)].is_player(player))
{
possible_placements.push((x, y));
break;
}
}
}
}
}
}
possible_placements
}
}
}

4
pyproject.toml Normal file
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@ -0,0 +1,4 @@
[project]
name = "blokus"
requires-python = ">=3.8"

4
pyrightconfig.json Normal file
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@ -0,0 +1,4 @@
{
"venv": ".venv",
"venvPath": "./"
}