The Battle for Wesnoth  1.17.0-dev
filter_context.hpp
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1 /*
2  Copyright (C) 2014 - 2021
3  by Chris Beck <render787@gmail.com>
4  Part of the Battle for Wesnoth Project https://www.wesnoth.org/
5 
6  This program is free software; you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation; either version 2 of the License, or
9  (at your option) any later version.
10  This program is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY.
12 
13  See the COPYING file for more details.
14 */
15 
16 /**
17  *
18  * This class is an abstract base class which represents a display context
19  * (game map, units, and teams) together with a TOD manager. This, plus
20  * the game data (WML variables) and a lua kernel (currently a singleton)
21  * is sufficient to evaluate filters.
22  *
23  **/
24 
25 #pragma once
26 
27 #include <vector>
28 
29 class display_context;
30 class tod_manager;
31 class game_data;
32 class game_lua_kernel;
33 
35 public:
36  // accessors
37 
38  virtual const display_context & get_disp_context() const = 0;
39  virtual const tod_manager & get_tod_man() const = 0;
40  virtual const game_data * get_game_data() const = 0;
41  virtual game_lua_kernel * get_lua_kernel() const = 0;
42 
43  // Dtor
44 
45  virtual ~filter_context() {}
46 };
virtual const display_context & get_disp_context() const =0
virtual ~filter_context()
virtual const tod_manager & get_tod_man() const =0
virtual const game_data * get_game_data() const =0
virtual game_lua_kernel * get_lua_kernel() const =0