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Code Issues Releases Wiki Activity

Make code clearer

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This commit is contained in:
Daniel Barber 2018-03-13 22:45:13 -04:00
parent 682ce67652
commit bfa49b48b6
Signed by: danbarber
GPG Key ID: 931D8112E0103DD8
1 changed files with 15 additions and 14 deletions
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29
lib/chess/moves/pawn.ex
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@ -3,28 +3,29 @@ defmodule Chess.Moves.Pawn do
def moves(board, {file, rank}) do
board["#{file},#{rank}"]
|> Map.get("colour")
|> _moves(board, {file, rank})
end
defp _moves(%{"colour" => "white"}, board, {file, rank}) do
defp _moves("white", board, {file, rank}) do
cond do
obstruction?(board, {file, rank + 1}) -> []
rank == 1 -> [
{file, rank + 1} |
_moves(%{"colour" => "white"}, board, {file, rank + 1})
]
true -> [{file, rank + 1}]
obstruction?(board, {file, rank + 1}) ->
[]
rank == 1 ->
[{file, rank + 1} | _moves("white", board, {file, rank + 1})]
true ->
[{file, rank + 1}]
end
end
defp _moves(%{"colour" => "black"}, board, {file, rank}) do
defp _moves("black", board, {file, rank}) do
cond do
obstruction?(board, {file, rank - 1}) -> []
rank == 6 -> [
{file, rank - 1} |
_moves(%{"colour" => "black"}, board, {file, rank - 1})
]
true -> [{file, rank - 1}]
obstruction?(board, {file, rank - 1}) ->
[]
rank == 6 ->
[{file, rank - 1} | _moves("black", board, {file, rank - 1})]
true ->
[{file, rank - 1}]
end
end