2 Copyright (c) 2007 Paolo Capriotti <p.capriotti@gmail.com>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
10 #ifndef CORE__BEHAVIOUR_H
11 #define CORE__BEHAVIOUR_H
21 * @brief Encapsulates general rules on piece movement.
23 class TAGUA_EXPORT IBehaviour
{
25 virtual ~IBehaviour();
28 * Perform a capture on a given square. In variants with drops, this
29 * adds the captured piece to the opponent pool. In games like chess,
32 virtual void captureOn(IState
* state
, const Point
& square
) const = 0;
35 * Set the moving piece in its destination square, without affecting
36 * the current turn or flags.
37 * This is a helper function normally called by move.
39 virtual void move(IState
* state
, const Move
& m
) const = 0;
42 * Set next turn as the current turn.
44 virtual void advanceTurn(IState
* state
) const = 0;
47 * @return The square where a given move would capture if executed.
49 virtual Point
captureSquare(const IState
* state
, const Move
& m
) const = 0;
52 * @return The opponent of @a color.
54 virtual const IColor
* opponent(const IColor
* player
) const = 0;
57 * Players can have associated directions. For example, in chess,
58 * white pieces move towards the 8th rank.
59 * Associated directions are often used during move validation.
60 * @return Direction associated with @a player.
62 virtual Point
direction(const IColor
* player
) const = 0;
65 #endif // CORE__BEHAVIOUR_H