/*
 * factions.h
 *      written by Keith Fulton <keith@paqrat.com>
 *
 * Copyright (C) 2003 Atomic Blue (info@planeshift.it, http://www.atomicblue.org) 
 *
 *
 * This program 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 (version 2 of the License)
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */ 
#ifndef __FACTIONS_H__
#define __FACTIONS_H__

#include <csutil/hash.h>
#include <csutil/csstring.h>

/** An ingame faction group.
 *
 */
struct Faction
{
    csString name;
    int      id;
    float    weight;
    bool operator==(Faction& other) const
    { return name == other.name; }
    bool operator<(Faction& other) const
    { return strcmp(name,other.name)<0; }
};


/** This struct stores the particular score of a particular player to a
 *   particular faction.
 *   
 */
struct FactionStanding
{
    Faction *faction;
    int score;
};

/**
 * This class is a set of faction structures. It's designed for storing,
 * updating and saving many faction scores per player in a compact way.
 */
class FactionSet
{
protected:
    /// A list of all the standings with each faction
    csHash<FactionStanding*, int>   factionstandings;   
    
    /// A list of all the factions in this set
    csHash<Faction*, int>   factions_by_id;

public:
    /** Construct the faction set based on the comma delimited text.
      * @param csv_list The list of comma delimited factions.  Faction,score.
      * @param factionset The global list of factions.
      */
    FactionSet(const char *csv_list,csHash<Faction*, int, CS::Memory::AllocatorMalloc> &factionset);
    
    ~FactionSet();
   
    bool GetFactionStanding(int factionID,int& standing, float& weight);
    
    /** Updates a faction standing.
      * If the factionID is not in the current list of standings a new standing
      * is added.
      *
      * @param factionID The ID of the faction to update.
      * @param delta The amount to change the faction score by.  If the faction is 
      *              not in the current list this will be the starting score.
      */
    void UpdateFactionStanding(int factionID,int delta);

    /** Create a comma delimited string based on the current faction standings.
      * @param csv The destination for the constructed string.
      */
    void GetFactionListCSV(csString& csv);

    float FindWeightedDiff(FactionSet* other);
};



#endif