#ifndef _STATS_H_
#define _STATS_H_

#include <string>
#include <list>

/*
    Elements for all tangible entities.
*/

// Elemental Makeup, 0 to 100.
#define ELEMENT_WOOD 0
#define ELEMENT_FIRE 1
#define ELEMENT_EARTH 2
#define ELEMENT_METAL 3
#define ELEMENT_WATER 4
#define ELEMENT_AIR 5

// The number of elements.
#define NUM_ELEMENTS 6

/*
    Attributes for all creatures.
*/

// Attributes, 0 to +100.
#define BODY_POTENTIAL 0
#define BODY_CURRENT 1 

#define MIND_POTENTIAL 2
#define MIND_CURRENT 3

#define SOUL_POTENTIAL 4     
#define SOUL_CURRENT 5

// Attributes, -100 to +100.
#define APPEARANCE 6
#define AURA 7

// The number of attributes.
#define NUM_ATTRIBUTES 8

/*
    Skills for all characters.
*/

// Combat Skills, 0 to +100.
#define SKILL_UNARMED 0
#define SKILL_MELEE 1
#define SKILL_RANGED 2

// Mundane Skills, 0 to +100.
#define SKILL_BUSINESS 3
#define SKILL_MEDICINE 4
#define SKILL_SEDUCTION 5
#define SKILL_SPEECH 6
#define SKILL_TECHNOLOGY 7
#define SKILL_THEFT 8
#define SKILL_MUSIC 9

// Spell Skills, 0 to +100.
#define SKILL_NECROMANCY 10
#define SKILL_TELEPATHY 11
#define SKILL_SUMMONING 12
#define SKILL_ENCHANTING 13
#define SKILL_NATURE 14

#define NUM_SKILLS 15

/*
    Any Entity in the game.
*/
class Entity
{
    private:
    protected:
        static std::list <Entity*> s_entities;
    public:
};

/*
    Any tangible entity in the game. Eg. An instance of a creature or item.
    Every tangible entity in the game has an elemental makeup.
*/
class Tangible : public Entity
{
    private:
    protected:
        float m_elements[NUM_ELEMENTS];
    public:
};

/*
    Any item.
*/
class Item : public Tangible
{
    private:
    protected:
        float m_weight, m_value;
        std::string m_name, m_description;
    public:
};

/*
    Any item that can be equipped by a creature.
*/
class Equippable : public Item
{
    private:
    protected:
        std::vector <Trait*> m_traits;
    public:
};

/*
    An item that is weilded to do damage in combat.
*/
class Weildable : public Equippable
{
    private:
    protected:
        float m_range;
    public:
};

/*
    An item that is worn.
*/
class Wearable : public Equippable
{
    private:
    protected:
        float m_appearance;
    public:
};

/*
    An item that characters can own, and use for transport.
*/
class Vehicle : public Tangible
{
    private:
    protected:
    public:
};

/*
    A living creature.
*/
class Creature : public Tangible
{
    private:
    protected:
        float m_attributes[NUM_ATTRIBUTES];
        float m_skills[NUM_SKILLS];
        bool m_usesItems, m_usesVehicles, m_eatsMeat, m_eatsVeges, m_male, 
        m_female, m_livesIndoors;
    public:
};

/*
    A creature that follows a character.
*/
class Companion : public Creature
{
    private:
    protected:
    public:
};

/*
    A kind of creature that can have other creatures follow it and can move
    around, etc.
*/
class Character : public Creature
{
    private:
    protected:
        std::vector <Trait*> m_traits;
    public:
};   

/*
    A character that is automatically controlled.
*/
class NonPlayerCharacter : public Character
{
    private:
    protected:
    public:
};

/*
    A character that is controlled by a human player.
*/
class PlayerCharacter : public Character
{
    private:
    protected:
    public:
};

/*
    Any location.
*/
class Location : public Tangible
{
    private:
    protected:
    public:
};

/*
    A world contains cities, has DateTime.
*/
class World : public Location
{
    private:
    protected:
    public:
};

/*
    A city contains areas, has weather.
*/
class City : public Location
{
    private:
    protected:
    public:
};

/*
    An area can store items, can be owned, can be visited by characters.
*/
class Area : public Location
{
    private:
    protected:
    public:
};

/*
    Any entity that is abstract. Eg. kinds of traits, weather, etc.
*/
class Intangible : public Entity
{
    private:
    protected:
    public:
};

/*
    Keeps track of the date and time of a world.
*/
class DateTime : public Intangible
{
    private:
    protected:
    public:
};

/*
    Keeps track of the weather of a city, seasons, etc.
*/
class Weather : public Intangible
{
    private:
    protected:
    public:
};

/*
    Some experience/trait/knowledge/form that a character has or that is 
    achieved from some item.
*/
class Modifier : public Intangible
{
    private:
    protected:
        std::string m_name, m_desc;
    public:
};

/*
    May modify attributes: Body, Elemental stats, appearance, and aura.
    Eg. Human(stat change), Female(maybe no stat change), Feline.
*/
class BodyForm : public Modifier
{
    private:
    protected:
    public:
};

/*
    May modify skills only. Eg. Combat Training, etc.
*/
class Trait : public Modifier
{
    private:
    protected:
    public:
};

/*
    An action that creatures and characters might be able to perform.
*/
class Action : public Intangible
{
    private:
    protected:
    public:
};

#endif