Clean some warnings

apps/amethyst/lib/apps/connection_handler.ex

@@ -19,7 +19,6 @@ defmodule Amethyst.ConnectionHandler do
   This module is responsible for handling incoming packets and sending outgoing packets. It keeps track of what state the connection is in and which game should
   receive the packets.
   """
-alias ElixirSense.Log
   require Logger
 
   @spec child_spec(:gen_tcp.socket()) :: Supervisor.child_spec()
@@ -30,7 +29,7 @@ alias ElixirSense.Log
     }
   end
 
-  @spec start(:gen_tcp.socket(), atom(), pos_integer()) :: no_return()
+  @spec start(:gen_tcp.socket(), atom(), integer()) :: no_return()
   def start(socket, connstate, version) do
     {:ok, spawn(fn ->
       Process.set_label("ConnectionHandler for #{inspect(socket)}")
@@ -38,7 +37,7 @@ alias ElixirSense.Log
     end)}
   end
 
-  @spec start_link(:gen_tcp.socket(), atom(), pos_integer()) :: no_return()
+  @spec start_link(:gen_tcp.socket(), atom(), integer()) :: no_return()
   def start_link(socket, connstate, version) do
     {:ok, spawn_link(fn ->
       Process.set_label("ConnectionHandler for #{inspect(socket)}")
@@ -46,7 +45,7 @@ alias ElixirSense.Log
     end)}
   end
 
-  @spec loop(:gen_tcp.socket(), atom(), pos_integer(), map()) :: no_return()
+  @spec loop(:gen_tcp.socket(), atom(), integer(), map()) :: no_return()
   defp loop(socket, connstate, version, state) do
     receive do
       :closed ->

apps/amethyst/lib/nbt.ex

@@ -36,7 +36,7 @@ defmodule Amethyst.NBT.Write do
   def check_type({:byte_array, values}) when is_list(values), do: Enum.all?(values, &is_integer/1)
   def check_type({:string, value}) when is_binary(value), do: true
   def check_type({:list, {type, values}}) when is_list(values), do: Enum.all?(values, &check_type({type, &1}))
-  def check_type({:compound, values}) when is_map(values), do: Enum.all?(values, fn {name, {type, value}} -> check_type({type, value}) end)
+  def check_type({:compound, values}) when is_map(values), do: Enum.all?(values, fn {_name, {type, value}} -> check_type({type, value}) end)
   def check_type({:int_array, values}) when is_list(values), do: Enum.all?(values, &is_integer/1)
   def check_type({:long_array, values}) when is_list(values), do: Enum.all?(values, &is_integer/1)
   def check_type(_), do: false

apps/example_game/lib/example/game.ex

@@ -16,13 +16,13 @@ defmodule Example.Game do
   end
 
   @impl true
-  def player_position(from, {x, y, z}, refs) do
+  def player_position(from, {x, y, z}, _refs) do
     Logger.info("Player at #{inspect(from)} moved to #{x}, #{y}, #{z}")
     :ok
   end
 
   @impl true
-  def joinable?(refs) do
+  def joinable?(_refs) do
     true
   end
 end