Minor tweaks

apps/amethyst/lib/states/login.ex

@@ -60,7 +60,7 @@ defmodule Amethyst.ConnectionState.Login do
   Macros.defpacket_serverbound :login_acknowledged, 0x03, 767, []
   Macros.defpacket_serverbound :cookie_response, 0x04, 767, [identifier: :string, payload: {:optional, :byte_array}]
 
-  def handle(%{packet_type: :login_start, name: name, player_uuid: player_uuid}, 767, state) do
+  def handle(%{packet_type: :login_start, name: name, player_uuid: player_uuid}, 767, _state) do
     Logger.debug("Received login start for #{name} with UUID #{player_uuid}")
     if Application.fetch_env!(:amethyst, :encryption) do
       raise RuntimeError, "Encryption is not currently supported"

apps/amethyst/lib/states/macros.ex

@@ -78,7 +78,7 @@ defmodule Amethyst.ConnectionState.Macros do
   end
 
   def write_signature(packet, signature) do
-    data = Enum.reduce(signature, "", fn {name, type}, acc ->
+    Enum.reduce(signature, "", fn {name, type}, acc ->
       #acc <> apply(Write, type, [Map.get(packet, name)])
       case type do
         {:optional, {:compound, signature}} ->
@@ -145,7 +145,7 @@ defmodule Amethyst.ConnectionState.Macros do
       _ -> false
     end
   end
-  def type_matches(value, {:optional, type}) when is_nil(value), do: true
+  def type_matches(value, {:optional, _type}) when is_nil(value), do: true
   def type_matches(value, {:optional, type}), do: type_matches(value, type)
   def type_matches(value, {:array, signature}) when is_list(value), do: Enum.all?(value, fn item -> check_type(item, signature) end)
   def type_matches(value, {:compound, signature}) when is_map(value), do: check_type(value, signature)