Made more use of nil_or_empty?, fixed incorrect default species body shape, fixed Illusion, fixed potential foreign Pokémon with blank names

Data/Scripts/019_Utilities/001_Utilities.rb

@@ -89,19 +89,19 @@ end
 
 # Unused
 def hasConst?(mod,constant)
-  return false if !mod || !constant || constant==""
+  return false if !mod || nil_or_empty?(constant)
   return mod.const_defined?(constant.to_sym) rescue false
 end
 
 # Unused
 def getConst(mod,constant)
-  return nil if !mod || !constant || constant==""
+  return nil if !mod || nil_or_empty?(constant)
   return mod.const_get(constant.to_sym) rescue nil
 end
 
 # Unused
 def getID(mod,constant)
-  return nil if !mod || !constant || constant==""
+  return nil if !mod || nil_or_empty?(constant)
   if constant.is_a?(Symbol) || constant.is_a?(String)
     if (mod.const_defined?(constant.to_sym) rescue false)
       return mod.const_get(constant.to_sym) rescue 0

Data/Scripts/019_Utilities/002_Utilities_Pokemon.rb

@@ -120,7 +120,7 @@ def pbAddForeignPokemon(pkmn, level = 1, owner_name = nil, nickname = nil, owner
   # Set original trainer to a foreign one
   pkmn.owner = Pokemon::Owner.new_foreign(owner_name || "", owner_gender)
   # Set nickname
-  pkmn.name = nickname[0, Pokemon::MAX_NAME_SIZE]
+  pkmn.name = nickname[0, Pokemon::MAX_NAME_SIZE] if !nil_or_empty?(nickname)
   # Recalculate stats
   pkmn.calc_stats
   if owner_name

Data/Scripts/019_Utilities/003_Utilities_BattleAudio.rb

@@ -68,7 +68,7 @@ end
 #===============================================================================
 def pbPlayTrainerIntroME(trainer_type)
   trainer_type_data = GameData::TrainerType.get(trainer_type)
-  return if !trainer_type_data.intro_ME || trainer_type_data.intro_ME == ""
+  return if nil_or_empty?(trainer_type_data.intro_ME)
   bgm = pbStringToAudioFile(trainer_type_data.intro_ME)
   pbMEPlay(bgm)
 end