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| author | Simponic <loganhunt@simponic.xyz> | 2023-01-13 10:00:58 -0700 |
|---|---|---|
| committer | Simponic <loganhunt@simponic.xyz> | 2023-01-13 10:00:58 -0700 |
| commit | a93119b25033248decda7477575e214a1b254fbd (patch) | |
| tree | e581569ca49b27251e7da64014eee13095625248 /lib/chessh/utils.ex | |
| parent | aa2ff6e1374e8a6a546aa04ee3430d1152c58553 (diff) | |
| download | chessh-a93119b25033248decda7477575e214a1b254fbd.tar.gz chessh-a93119b25033248decda7477575e214a1b254fbd.zip | |
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Diffstat (limited to 'lib/chessh/utils.ex')
| -rw-r--r-- | lib/chessh/utils.ex | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/chessh/utils.ex b/lib/chessh/utils.ex index 3e83d5e..d1acf44 100644 --- a/lib/chessh/utils.ex +++ b/lib/chessh/utils.ex @@ -11,4 +11,9 @@ defmodule Chessh.Utils do split = String.split(text, "\n") {Enum.reduce(split, 0, fn x, acc -> max(acc, String.length(x)) end), length(split)} end + + def wrap_around(index, delta, length) do + calc = index + delta + if(calc < 0, do: length, else: 0) + rem(calc, length) + end end |