def get_opponent_level
  return $Trainer.highest_level_pokemon_in_party
end

def get_egg_group_from_id(id)
  case id
  when 0;
    return nil
  when 1;
    return :Monster
  when 2;
    return :Water1
  when 3;
    return :Bug
  when 4;
    return :Flying
  when 5;
    return :Field
  when 6;
    return :Fairy
  when 7;
    return :Grass
  when 8;
    return :Humanlike
  when 9;
    return :Water3
  when 10;
    return :Mineral
  when 11;
    return :Amorphous
  when 12;
    return :Water2
  when 13;
    return :Ditto
  when 14;
    return :Dragon
  when 15;
    return :Undiscovered
  end
end

def get_egg_group_name(id)
  case id
  when 0;
    return nil
  when 1;
    return "Monster Pokémon"
  when 2;
    return :"Aquatic Pokémon"
  when 3;
    return :"Bug Pokémon"
  when 4;
    return :"Bird Pokémon"
  when 5;
    return :"Land Pokémon"
  when 6;
    return :"Cute Pokémon"
  when 7;
    return :"Plant Pokémon"
  when 8;
    return :"Human-like Pokémon"
  when 9;
    return :"Aquatic Pokémon"
  when 10;
    return :"Mineral Pokémon"
  when 11;
    return :"Blob Pokémon"
  when 12;
    return :"Fish Pokémon"
  when 13;
    return :"Ditto"
  when 14;
    return :"Dragon Pokémon"
  when 15;
    return :"Legendary Pokémon"
  end
end

def get_random_trainer_name(trainer_class)
  #0: male, 1: female
  gender = GameData::TrainerType.get(trainer_class).gender
  if (gender == 0)
    return RandTrainerNames_male[rand(RandTrainerNames_male.length)]
  else
    return RandTrainerNames_female[rand(RandTrainerNames_female.length)]
  end
end

def get_random_battle_lounge_egg_group
  _DISABLED_EGG_GROUPS = [0, 13, 15]
  group = 0
  while _DISABLED_EGG_GROUPS.include?(group)
    group = rand(0, 15)
  end
  return group
end

GENERIC_PRIZES_MULTI = [:HEARTSCALE, :HEARTSCALE,:HEARTSCALE,:HEARTSCALE,:HEARTSCALE,
                        :LEMONADE, :PERFECTBALL, :BOOSTBALL,
                        :GENDERBALL, :ABILITYBALL, :VIRUSBALL, :SHINYBALL, :RARECANDY]
GENERIC_PRIZES_SINGLE = [:RARECANDY, :RARECANDY, :PPUP, :EJECTBUTTON, :FOCUSBAND, :FOCUSSASH,
                         :RESETURGE, :ABILITYURGE, :ITEMURGE, :ITEMDROP, :HPUP, :INCUBATOR, :LUCKYEGG]
MONSTER_PRIZES = [:RAREBONE, :LAGGINGTAIL, :RAZORFANG, :RAZORCLAW, :GRIPCLAW, :MANKEYPAW]
WATER_PRIZES = [:MYSTICWATER, :BIGPEARL, :SHELLBELL]
BUG_PRIZES = [:SILVERPOWDER, :SHEDSHELL, :EVIOLITE]
FLYING_PRIZES = [:AIRBALLOON, :FLOATSTONE, :COMETSHARD]
FIELD_PRIZES = [:MOOMOOMILK, :IRONBALL, :RAREBONE, :MANKEYPAW, :FLAMEORB]
FAIRY_PRIZES = [:STARPIECE, :DESTINYKNOT, :MAXELIXIR, :LIFEORB]
HUMAN_PRIZES = [:BLACKBELT, :RINGTARGET, :EXPERTBELT, :GOLDRING, :AMULETCOIN]
GRASS_PRIZES = [:REVIVALHERB, :POWERHERB, :HEALPOWDER, :ABSORBBULB, :BIGMUSHROOM]
MINERAL_PRIZES = [:CELLBATTERY, :SHINYSTONE, :BIGNUGGET, :RELICCOPPER, :RELICGOLD, :RELICSILVER, :DIAMOND, :ROCKYHELMET]
AMORPHOUS_PRIZES = [:SPELLTAG, :WIDELENS, :ZOOMLENS, :SCOPELENS, :TOXICORB]
DRAGON_PRIZES = [:DRAGONSCALE, :DRAGONFANG, :RARECANDY, :GOLDRING]
UNDISCOVERED_PRIZES = [:MASTERBALL, :SACREDASH]
#todo: prizes related to the group (ex: dragon fang for dragon types, TMs, etc. )
# todo: if heartscale, give a random amount from 10-20
def get_random_battle_lounge_prize(group_type)
  generic_prizes = [GENERIC_PRIZES_MULTI, GENERIC_PRIZES_SINGLE]
  is_generic_prize = rand(3) == 1
  if is_generic_prize
    type = generic_prizes.sample
    return type.sample
  else
    case get_egg_group_from_id(group_type)
    when :Monster;
      return MONSTER_PRIZES.sample
    when :Water1, :Water2, :Water3;
      return WATER_PRIZES.sample
    when :Bug;
      return BUG_PRIZES.sample
    when :Flying;
      return FLYING_PRIZES.sample
    when :Field;
      return FIELD_PRIZES.sample
    when :Fairy;
      return FAIRY_PRIZES.sample
    when :Grass;
      return GRASS_PRIZES.sample
    when :Mineral;
      return MINERAL_PRIZES.sample
    when :Humanlike;
      return HUMAN_PRIZES.sample
    when :Amorphous;
      return AMORPHOUS_PRIZES.sample
    when :Dragon;
      return DRAGON_PRIZES.sample
    when :Undiscovered;
      return UNDISCOVERED_PRIZES.sample
    end
  end

end

def generateSameEggGroupFusionsTeam(eggGroup_id)
  eggGroup = get_egg_group_from_id(eggGroup_id)
  teamComplete = false
  generatedTeam = []
  while !teamComplete
    foundFusionPartner = false
    species1 = rand(Settings::NB_POKEMON) + 1
    if getPokemonEggGroups(species1).include?(eggGroup)
      foundFusionPartner = false
      while !foundFusionPartner
        species2 = rand(Settings::NB_POKEMON) + 1
        if getPokemonEggGroups(species2).include?(eggGroup)
          generatedTeam << getFusionSpecies(species1, species2)
          foundFusionPartner = true
        end
      end
    end
    teamComplete = generatedTeam.length == 3
  end
  return generatedTeam
end

def listLegendaryPokemonIds()
  return [144, 145, 146, 150, 151, 245, 243, 244, 245, 249, 250, 251, 315, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 378, 379, 380, 381]
end

def pokemonIsPartLegendary(species)
  head = getBasePokemonID(species, false)
  body = getBasePokemonID(species, true)
  return listLegendaryPokemonIds().include?(head) || listLegendaryPokemonIds().include?(body)
end


def generateRandomFusionFromPokemon(dexNum, onlyCustomSprites = false, allowLegendaries=true)
  speciesList = onlyCustomSprites ? getCustomSpeciesListForPokemon(dexNum,allowLegendaries) : getAllPokemonWithBase(dexNum)
  return speciesList.sample
end

def getRandomBasePokemon(includeLegendaries = false,maxNb=NB_POKEMON)
  legendaries =listLegendaryPokemonIds()
  poke = rand(maxNb + 1)
  return poke if includeLegendaries
  while legendaries.include?(poke)
    poke = rand(maxNb + 1)
  end
  return poke
end

def getAllPokemonWithBase(dexNum)
  #todo Unimplemented
  return [25]
end

def getCustomSpeciesListForPokemon(dexNum,allowLegendaries=true)
  excluded = allowLegendaries ? [] : listLegendaryPokemonIds()
  filesList = Dir["./Graphics/CustomBattlers/*"]
  speciesList = []
  maxDexNumber = (NB_POKEMON * NB_POKEMON) + NB_POKEMON
  maxVal = filesList.length - 1
  for i in 0..maxVal
    path = filesList[i]
    file = File.basename(path, ".*")
    splitPoke = file.split(".")
    head = splitPoke[0].to_i
    body = splitPoke[1].to_i
    if (head == dexNum || body == dexNum) && !(excluded.include?(head) || excluded.include?(body))
      fused = (body * NB_POKEMON) + head
      if fused <= maxDexNumber && fused > 0
        speciesList << fused
      end
    end
  end
  if speciesList.length == 0
    speciesList << dexNum
  end
  return speciesList
end