text: //
  // Copyright (c) 2008-2015 the Urho3D project.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  //
  
  #pragma once
  
  #include "Sample.h"
  
  /// Console input example.
  /// This sample demonstrates:
  ///     - Implementing a crude text adventure game, which accepts input both through the engine console,
  ///       and standard input.
  class ConsoleInput : public Sample
  {
      OBJECT(ConsoleInput);
  
  public:
      /// Construct.
      ConsoleInput(Context* context);
  
      /// Setup after engine initialization and before running the main loop.
      virtual void Start();
  
  protected:
      /// Return XML patch instructions for screen joystick layout for a specific sample app, if any.
      virtual String GetScreenJoystickPatchString() const { return
          "<patch>"
          "    <add sel=\"/element/element[./attribute[@name='Name' and @value='Button2']]\">"
          "        <attribute name=\"Is Visible\" value=\"false\" />"
          "    </add>"
          "    <add sel=\"/element/element[./attribute[@name='Name' and @value='Hat0']]\">"
          "        <attribute name=\"Is Visible\" value=\"false\" />"
          "    </add>"
          "</patch>";
      }
  
  private:
      /// Handle console command event.
      void HandleConsoleCommand(StringHash eventType, VariantMap& eventData);
      /// Handle frame update event.
      void HandleUpdate(StringHash eventType, VariantMap& eventData);
      /// Handle ESC key down event to quit the engine.
      void HandleEscKeyDown(StringHash eventType, VariantMap& eventData);
      /// Print intro message and initialize the game state.
      void StartGame();
      /// Print game over message.
      void EndGame(const String& message);
      /// Advance the game state.
      void Advance();
      /// Handle user input either from the engine console or standard input.
      void HandleInput(const String& input);
      /// Print text to the engine console and standard output.
      void Print(const String& output);
  
      /// Game on flag.
      bool gameOn_;
      /// Food dispensed flag.
      bool foodAvailable_;
      /// Whether ate on the previous turn.
      bool eatenLastTurn_;
      /// Number of turns survived.
      int numTurns_;
      /// Player's hunger level.
      int hunger_;
      /// Threat of Urho level.
      int urhoThreat_;
  };
  