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hangman_text_client
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Text client for the Hangman Game.
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lib/hangman/text/client/prompter.ex
defmodule Hangman.Text.Client.Prompter do
@moduledoc """
Prompts a player for a move.
"""
alias Hangman.Text.Client.{Player, State}
@doc """
Accepts a player's move.
"""
@spec accept_move(State.t()) :: State.t() | no_return
def accept_move(%State{} = state) do
IO.gets("Your guess (or stop): ") |> check_input(state)
end
## Private functions
# "Player's input"
@typep input :: String.t() | {:error, atom} | :eof
@spec check_input(input, State.t()) :: State.t() | no_return
defp check_input({:error, reason}, state),
do: Player.end_game(state, "Game ended: #{inspect(reason)}.")
defp check_input(:eof, state),
do: Player.end_game(state, "Looks like you gave up somehow.")
defp check_input(input, state) do
case String.trim(input) do
"stop" ->
Player.end_game(state, "Looks like you gave up.")
<<code>> = guess when code in ?a..?z ->
put_in(state.guess, guess)
_bad_input ->
IO.puts("Please enter a single lowercase non-accented letter.\n")
accept_move(state)
end
end
end