Pokémon Gen. V Base Stats Structure

typedef unsigned char char_t;
typedef unsigned short short_t;


enum Type { NORMAL = 0x00, FIGHTING = 0x01, FLYING = 0x02, POISON = 0x03,
  GROUND = 0x04, ROCK = 0x05, BUG = 0x06, GHOST = 0x07, STEEL = 0x08, FIRE = 0x09,
  WATER = 0x0A, GRASS = 0x0B, ELECTRIC = 0x0C, PSYCHIC = 0x0D, ICE = 0x0E, DRAGON = 0x0F,
  DARK = 0x10 };

#pragma pack(1)
struct BaseStats
{
  char_t base_hp; //#0
  char_t base_atk;
  char_t base_def;
  char_t base_spd;
  char_t base_spatk;
  char_t base_spdef;

  char_t type1;
  char_t type2;

  char_t catch_rate; //#8

  //#9 = stage of evolution (Legendaries get 3, Pokémon not part of an evolution line get 2)
  //1 = not evolved, 2 = evolved once (or doesn't evolve), 3 = evolved twice (or legendary)
  char_t evolution_stage;

  //#10 - 11 = EV yield
  union
  {
    struct
    {
      //byte 1
      size_t ev_hp : 2;
      size_t ev_atk : 2;
      size_t ev_def : 2;
      size_t ev_spd : 2;
      //byte 2
      size_t ev_spatk : 2;
      size_t ev_spdef : 2;
      size_t ev_padding : 4;
      //item1
      size_t ev_extra : 16;
    };
    struct
    {
      short ev_data;
      short_t item1;
    };
  };

  //#12 - 13 = held item 1 (little endian)
  //#14 - 15 = held item 2
  short_t item2;

  //#16 - 17 = Dream World item (Pokémon will be holding this item when brought from the Dream world)
  short_t item_special;

  enum GENDER { GENDERLESS = 0xFF }; //The rest are a female percentage out of 254
  //#18 = gender ratio
  char_t gender;
  //#19 = base egg cycles
  char_t egg_cycles;
  //#20 = base happiness
  char_t base_happy;


  enum GROWTH { ERRATIC = 1, FAST = 4, MED_FAST = 0, MED_SLOW = 3, SLOW = 5, FLUCTUATING = 2 };
  //Lv. 100 Exp.: Erratic = 600,000; Fast = 800,000; Med. Fast = 1,000,000;
  //              Med. Slow = 1,059,860; Slow = 1,250,000; Fluctuating = 1,640,000
  //#21 = experience growth
  char_t growth;

  enum EGG_GROUP { MONSTER = 0x01, WATER_1 = 0x02, BUG = 0x03, FLYING = 0x04, GROUND = 0x05, FAIRY = 0x06, PLANT = 0x07,
    HUMAN_SHAPE = 0x08, WATER_3 = 0x09, MINERAL = 0x0A, INDETERMINATE = 0x0B, WATER_2 = 0x0C, DITTO = 0x0D, DRAGON = 0x0E };
  //The rest cannot breed

  //#22 = egg group 1
  //#23 = egg group 2
  char_t egg_group1;
  char_t egg_group2;

  //#24 = ability 1
  //#25 = ability 2
  //#26 = special ability (Dream World ability)
  char_t ability1;
  char_t ability2;
  char_t ability_special;

  //#27 = 0, 60, 90, 120 or 150 (not sure why)
  char_t _3;

  //#28 - 29 = index of alternate form list (starting from 1 = Bulbasaur)
  //This is strictly for Pokémon where base stat data changes in other forms
  short_t form_index;

  //#30 - 31 = Something related to alternate forms (0 for Pokémon without alternate forms)
  short_t form_thing;

  //32 = the number of forms this Pokémon has (1 for Pokémon without alternate forms)
  char_t form_num;

  //33 = bitfields of some sort
  char_t _8;

  //#34 = base exp
  char_t base_exp;

  //#35 - 59 = ?
  char_t _5[25];
};
#pragma pack()