Natural Hidden abilities [V.18]

[Turn20Negate]

Hey, just a quick piece of code to enable hidden abilities naturally for wild, trainer and obtainable Pokemon.The only drawback of this method is that it doesn't feel elegant, because it overrides every newly created Pokemon's ability. This leads to Pokemon not having natural abilities anymore.This may sound bad, but it actually only affects the debug screen so it won't matter in the actual game.
To implement it you simply have to insert 2 pieces of code.(Keep in mind this was made in EssentialsV.18 and may not work in other versions)
First put this in Pokebattle_Pokemon below "@mail = nil":

Spoiler:

# This enables Pokemon to get their hidden abilities in a natural way
    list=getAllAbilityList[1]
    self.setAbility(list[rand(list.length)])

Now insert this right above "#=============================================================================
# Nature
#=============================================================================":

Spoiler:

# Returns the list of abilities this Pokémon can have treating hidden abilities as normal ones
  def getAllAbilityList
    abils=[]; ret=[[],[]]
    abilities = pbGetSpeciesData(@species,formSimple,SpeciesAbilities)
    hiddenAbil = pbGetSpeciesData(@species,formSimple,SpeciesHiddenAbility)
    if abilities.is_a?(Array)
      abils.push(abilities[0])
      abils.push(abilities[1])
    else
      abils.push(abilities)
    end
    if hiddenAbil.is_a?(Array)
      abils.push(hiddenAbil[0])
      abils.push(hiddenAbil[1])
      abils.push(hiddenAbil[2])
      abils.push(hiddenAbil[3])
    else
      abils.push(hiddenAbil)
    end
    for i in 0...abils.length
      next if !abils[i] || abils[i]<=0
      ret[0].push(abils[i]); ret[1].push(i)
    end
    return ret
  end

That's it, but I got a little extra if you want ability capsules be able to change abilities to hidden abilities.
Just replace the whole function "ItemHandlers::UseOnPokemon.add(:ABILITYCAPSULE,proc { |item,pkmn,scene|" with:

Spoiler:

ItemHandlers::UseOnPokemon.add(:ABILITYCAPSULE,proc { |item,pkmn,scene|
  # Get a list of both the abilities' constants and their indexes
  abils = pkmn.getAllAbilityList
  # Check if the Pokemon only has 1 ability or is Zygarde
  if abils[1].length<=1 || isConst?(pkmn.species,PBSpecies,:ZYGARDE)
    scene.pbDisplay(_INTL("It won't have any effect."))
    next false
  end
  # Check if this is the Pokemon's last ability(start from the beginning if true)
  if pkmn.abilityIndex==abils[1][abils[1].length-1]
    newabil = 0
    newabilname = PBAbilities.getName(abils[0][0])
  else
    newabil = pkmn.abilityIndex+1
    newabilname = PBAbilities.getName(abils[0][newabil])
  end
  # Let the player confirm the change
  if scene.pbConfirm(_INTL("Would you like to change {1}'s Ability to {2}?",
     pkmn.name,newabilname))
    # Change the ability
    pkmn.setAbility(newabil)
    scene.pbRefresh
    scene.pbDisplay(_INTL("{1}'s Ability changed to {2}!",pkmn.name,
       PBAbilities.getName(pkmn.ability)))
    next true
  end
  next false
})

If you encounter any problem's while using this script be sure to comment them. :)