path: root/src/player_relations.h

/*
 *  The Mana World
 *  Copyright 2008 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  The Mana World is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with The Mana World; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef TMW_PLAYER_RELATIONS_H_
#define TMW_PLAYER_RELATIONS_H_

#include "being.h"
#include "player.h"
#include "configuration.h"
#include <string>
#include <map>
#include <vector>
#include <list>

struct PlayerRelation
{
    static const unsigned int EMOTE        = (1 << 0);
    static const unsigned int SPEECH_FLOAT = (1 << 1);
    static const unsigned int SPEECH_LOG   = (1 << 2);
    static const unsigned int WHISPER      = (1 << 3);
    static const unsigned int TRADE        = (1 << 4);

    static const unsigned int RELATIONS_NR = 4;
    static const unsigned int RELATION_PERMISSIONS[RELATIONS_NR];

    static const unsigned int DEFAULT = EMOTE
                                      | SPEECH_FLOAT
                                      | SPEECH_LOG
//                                    | WHISPER      -- only for friends
                                      | TRADE;
    enum relation {
        NEUTRAL     = 0,
        FRIEND      = 1,
        DISREGARDED = 2,
        IGNORED     = 3
    };

    PlayerRelation(relation relation);

    relation mRelation; // bitmask for all of the above
};


/**
 * Ignore strategy: describes how we should handle ignores
 */
class
PlayerIgnoreStrategy
{
public:
    std::string mDescription;
    std::string mShortName;

    /**
     * Handle the ignoring of the indicated action by the indicated player
     */
    virtual void ignore(Player *player, unsigned int flags) = 0;
};

class
PlayerRelationsListener
{
public:
    PlayerRelationsListener(void) { }
    virtual ~PlayerRelationsListener(void) { }

    virtual void updatedPlayer(const std::string &name) = 0;
};

/**
 * Player relations class, represents any particular relations and/or preferences the
 * user of the local client has wrt other players (identified by std::string).
 */
class
PlayerRelationsManager
{
public:
    PlayerRelationsManager(void);

    /**
     * Initialise player relations manager (load config file etc.)
     */
    void init(void);

    /**
     * Load configuration from our config file, or substitute defaults
     */
    void load(void);

    /**
     * Save configuration to our config file
     */
    void store(void);

    /**
     * Determines whether the player in question is being ignored, filtered by the specified flags.
     *
     */
    unsigned int checkPermissionSilently(const std::string &player_name, unsigned int flags);

    /**
     * Tests whether the player in question is being ignored for any of the actions in the specified flags.
     * If so, trigger appropriate side effects if requested by the player.
     */
    bool hasPermission(Being *being, unsigned int flags);

    bool hasPermission(const std::string &being, unsigned int flags);

    /**
     * Updates the relationship with this player
     */
    void setRelation(const std::string &name, PlayerRelation::relation relation);

    /**
     * Updates the relationship with this player
     */
    PlayerRelation::relation getRelation(const std::string &name);

    /**
     * Deletes the information recorded for a player
     */
    void removePlayer(const std::string &name);



    /**
     * Retrieves the default permissions
     */
    unsigned int getDefault(void) const;

    /**
     * Sets the default permissions
     */
    void setDefault(unsigned int permissions);



    /**
     * Retrieves all known player ignore strategies
     *
     * The player ignore strategies are allocated statically and must not be deleted.
     */
    std::vector<PlayerIgnoreStrategy *> *getPlayerIgnoreStrategies(void);

    /**
     * Return the current player ignore strategy
     *
     * \return A player ignore strategy, or NULL
     */
    PlayerIgnoreStrategy *getPlayerIgnoreStrategy(void) { return mIgnoreStrategy; }

    /**
     * Sets the strategy to call when ignoring players
     */
    void setPlayerIgnoreStrategy(PlayerIgnoreStrategy *strategy) { mIgnoreStrategy = strategy; }

    /**
     * For a given ignore strategy short name, find the appropriate index in the ignore strategies vector
     *
     * \param The short name of the ignore strategy to look up
     * \return The appropriate index, or -1
     */
    int getPlayerIgnoreStrategyIndex(const std::string &shortname);

    /**
     * Retrieves a sorted vector of all players for which we have any relations recorded
     */
    std::vector<std::string> *getPlayers(void);

    /**
     * Removes all recorded player info
     */
    void clear(void);

    /**
     * Do we persist our `ignore' setup?
     *
     */
    bool
    getPersistIgnores(void) const { return mPersistIgnores; }

    /**
     * Change the `ignore persist' flag
     *
     * @param value Whether to persist ignores
     */
    void
    setPersistIgnores(bool value) { mPersistIgnores = value; }

    void addListener(PlayerRelationsListener *listener) { mListeners.push_back(listener); }
    void removeListener(PlayerRelationsListener *listener) { mListeners.remove(listener); }

private:
    void signalUpdate(const std::string &name);

    bool mPersistIgnores; // If NOT set, we delete the ignored data upon reloading
    unsigned int mDefaultPermissions;

    PlayerIgnoreStrategy *mIgnoreStrategy;
    std::map<std::string, PlayerRelation *> mRelations;
    std::list<PlayerRelationsListener *> mListeners;
};


extern PlayerRelationsManager player_relations; // singleton representation of player relations


#endif /* !defined(TMW_PLAYER_RELATIONS_H_) */