Qi.cr
Qi
(棋) is an abstraction for initializing and updating positions of chess variants (including Chess, Janggi, Markruk, Shogi, Xiangqi).
Installation
-
Add the dependency to your
shard.yml
:dependencies: qi: github: sashite/qi.cr
-
Run
shards install
Example
require "qi"
in_hand = %w()
square = {
0 => "l",
1 => "n",
2 => "s",
3 => "g",
4 => "k",
5 => "g",
6 => "s",
7 => "n",
8 => "l",
10 => "r",
16 => "b",
18 => "p",
19 => "p",
20 => "p",
21 => "p",
22 => "p",
23 => "p",
24 => "p",
25 => "p",
26 => "p",
54 => "P",
55 => "P",
56 => "P",
57 => "P",
58 => "P",
59 => "P",
60 => "P",
61 => "P",
62 => "P",
64 => "B",
70 => "R",
72 => "L",
73 => "N",
74 => "S",
75 => "G",
76 => "K",
77 => "G",
78 => "S",
79 => "N",
80 => "L",
}
starting_position_piece_set = {in_hand: in_hand, square: square}
moves = [
[56, 47, "P"],
[3, 11, "g", nil],
[64, 24, "+B", "P"],
[5, 14, "g", nil],
[24, 14, "+B", "G"],
[4, 3, "k", nil],
[nil, 13, "G", nil],
]
last_piece_set =
moves.reduce(starting_position_piece_set) do |piece_set, move|
Qi.call(move, **piece_set)
end
last_piece_set # => {in_hand: ["P"], square: {0 => "l", 1 => "n", 2 => "s", 6 => "s", 7 => "n", 8 => "l", 10 => "r", 16 => "b", 18 => "p", 19 => "p", 20 => "p", 21 => "p", 22 => "p", 23 => "p", 25 => "p", 26 => "p", 54 => "P", 55 => "P", 57 => "P", 58 => "P", 59 => "P", 60 => "P", 61 => "P", 62 => "P", 70 => "R", 72 => "L", 73 => "N", 74 => "S", 75 => "G", 76 => "K", 77 => "G", 78 => "S", 79 => "N", 80 => "L", 47 => "P", 11 => "g", 14 => "+B", 3 => "k", 13 => "G"}}
License
The code is available as open source under the terms of the MIT License.
About Sashite
This library is maintained by Sashite.
With some lines of code, let's share the beauty of Chinese, Japanese and Western cultures through the game of chess!