My authentication

AuthController.php

<?php
/**
 * Log a player in.
 *
 * @param  LoginPlayerRequest $request
 * @return \Illuminate\Http\Response
 */
public function auth(LoginPlayerRequest $request)
{
    // The user supplied the wrong credentials.
    if ( ! $this->authenticatePlayer($request)) {
        return $this->authenticationFailed();
    }

    // Authentication successful!
    return $this->authenticationSuccessful();
}

/**
 * Log the player out.
 *
 * @return Illuminate\Http\Response
 */
public function logout()
{
    $this->auth->logout();

    return redirect()->route('index');
}

/**
 * Attempt to authenticate the player.
 *
 * @param  \App\Http\Requests\LoginPlayerRequest $request
 * @return bool
 */
protected function authenticatePlayer($request)
{
    // The user authorized with their username.
    $authWithUsername = $this->auth->attempt([
        'username' => $request->get('user'),
        'password' => $request->get('password'),
    ], $request->remember);

    // The user authorized with their email.
    $authWithEmail = $this->auth->attempt([
        'email' => $request->get('user'),
        'password' => $request->get('password'),
    ], $request->get('remember'));

    return (bool) $authWithEmail || $authWithUsername;
}

/**
 * Redirect the player back to the login page with a message.
 *
 * @return \Illuminate\Http\Response
 */
protected function authenticationFailed()
{
    return redirect()->route('auth.login')->withInput()->with('message', [
        'title'    => 'Whoopsie!',
        'body'     => 'Couldn\'t log you in with that username &amp; password combination. Please try again!',
        'severity' => 'warning',
    ]);
}

/**
 * Redirect the player upon successful authentication.
 *
 * @return \Illuminate\Http\Response
 */
protected function authenticationSuccessful()
{
    return redirect()->intended()->with('message', [
        'title'    => 'Success!',
        'body'     => 'You were logged in. Feel free to create a new character or edit an existing one.',
        'severity' => 'success',
    ]);
}