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Defining trainer Pokémon's EVs (Crosspost) 1.0

Pokémon Essentials Version
v16.2 ➖
Introduction
This is a crosspost of DoesntKnowHowToPlay's post from Pokecommunity, with his permission since I don't think he'll be making an account here, and this script is far too useful to not have be more public.


Original Post


I doubt anyone who knows what they're doing would have a hard time with this, but I'm led to believe this is harder than it looks so I'm going to post it anyway; it's quite possible I've forgotten something important.

Replace the set of definitions and first function at the top of "PTrainer_NPCTrainers" with this:
Code:
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TPSPECIES  = 0
TPLEVEL    = 1
TPITEM      = 2
TPMOVE1    = 3
TPMOVE2    = 4
TPMOVE3    = 5
TPMOVE4    = 6
TPABILITY  = 7
TPGENDER    = 8
TPFORM      = 9
TPSHINY    = 10
TPNATURE    = 11
TPIV        = 12
TPHAPPINESS = 13
TPNAME      = 14
TPSHADOW    = 15
TPBALL      = 16
TPHPEV      = 17
TPATKEV    = 18
TPDEFEV    = 19
TPSPEEDEV  = 20
TPSATKEV    = 21
TPSDEFEV    = 22
TPDEFAULTS = [0,10,0,0,0,0,0,nil,nil,0,false,nil,10,70,nil,false,0,0,0,0,0,0,0]

def pbLoadTrainer(trainerid,trainername,partyid=0)
  if trainerid.is_a?(String) || trainerid.is_a?(Symbol)
    if !hasConst?(PBTrainers,trainerid)
      raise _INTL("Trainer type does not exist ({1}, {2}, ID {3})",trainerid,trainername,partyid)
    end
    trainerid=getID(PBTrainers,trainerid)
  end
  success=false
  items=[]
  party=[]
  opponent=nil
  trainers=load_data("Data/trainers.dat")
  for trainer in trainers
    name=trainer[1]
    thistrainerid=trainer[0]
    thispartyid=trainer[4]
    next if trainerid!=thistrainerid || name!=trainername || partyid!=thispartyid
    items=trainer[2].clone
    name=pbGetMessageFromHash(MessageTypes::TrainerNames,name)
    for i in RIVALNAMES
      if isConst?(trainerid,PBTrainers,i[0]) && $game_variables[i[1]]!=0
        name=$game_variables[i[1]]
      end
    end
    opponent=PokeBattle_Trainer.new(name,thistrainerid)
    opponent.setForeignID($Trainer) if $Trainer
    for poke in trainer[3]
      species=poke[TPSPECIES]
      level=poke[TPLEVEL]
      pokemon=PokeBattle_Pokemon.new(species,level,opponent)
      pokemon.formNoCall=poke[TPFORM]
      pokemon.resetMoves
      pokemon.setItem(poke[TPITEM])
      if poke[TPMOVE1]>0 || poke[TPMOVE2]>0 || poke[TPMOVE3]>0 || poke[TPMOVE4]>0
        k=0
        for move in [TPMOVE1,TPMOVE2,TPMOVE3,TPMOVE4]
          pokemon.moves[k]=PBMove.new(poke[move])
          k+=1
        end
        pokemon.moves.compact!
      end
      pokemon.setAbility(poke[TPABILITY])
      pokemon.setGender(poke[TPGENDER])
      if poke[TPSHINY]  # if this is a shiny Pokémon
        pokemon.makeShiny
      else
        pokemon.makeNotShiny
      end
      pokemon.setNature(poke[TPNATURE])
      iv=poke[TPIV]
      for i in 0...6
        pokemon.iv[i]=iv&0x1F
      end
      pokemon.happiness=poke[TPHAPPINESS]
      pokemon.name=poke[TPNAME] if poke[TPNAME] && poke[TPNAME]!=""
      if poke[TPSHADOW]  # if this is a Shadow Pokémon
        pokemon.makeShadow rescue nil
        pokemon.pbUpdateShadowMoves(true) rescue nil
        pokemon.makeNotShiny
      end
      pokemon.ballused=poke[TPBALL]
      pokemon.ev[0]=poke[TPHPEV]
      pokemon.ev[1]=poke[TPATKEV]
      pokemon.ev[2]=poke[TPDEFEV]
      pokemon.ev[3]=poke[TPSPEEDEV]
      pokemon.ev[4]=poke[TPSATKEV]
      pokemon.ev[5]=poke[TPSDEFEV]
      pokemon.calcStats
      party.push(pokemon)
    end
    success=true
    break
  end
  return success ? [opponent,items,party] : nil
end

Then open the "Compilers" script and replace function pbCompileTrainers with the following:

Code:
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def pbCompileTrainers
  # Trainer types
  records=[]
  trainernames=[]
  count=0
  maxValue=0
  pbCompilerEachPreppedLine("PBS/trainertypes.txt"){|line,lineno|
    record=pbGetCsvRecord(line,lineno,[0,"unsUSSSeUs", # ID can be 0
        nil,nil,nil,nil,nil,nil,nil,{
        ""=>2,"Male"=>0,"M"=>0,"0"=>0,"Female"=>1,"F"=>1,"1"=>1,"Mixed"=>2,"X"=>2,"2"=>2
        },nil,nil]
    )
    if record[3] && (record[3]<0 || record[3]>255)
      raise _INTL("Bad money amount (must be from 0 through 255)\r\n{1}",FileLineData.linereport)
    end
    record[3]=30 if !record[3]
    if record[8] && (record[8]<0 || record[8]>255)
      raise _INTL("Bad skill value (must be from 0 through 255)\r\n{1}",FileLineData.linereport)
    end
    record[8]=record[3] if !record[8]
    record[9]="" if !record[9]
    trainernames[record[0]]=record[2]
    if records[record[0]]
      raise _INTL("Two trainer types ({1} and {2}) have the same ID ({3}), which is not allowed.\r\n{4}",
          records[record[0]][1],record[1],record[0],FileLineData.linereport)
    end
    records[record[0]]=record
    maxValue=[maxValue,record[0]].max
  }
  count=records.compact.length
  MessageTypes.setMessages(MessageTypes::TrainerTypes,trainernames)
  code="class PBTrainers\r\n"
  for rec in records
    next if !rec
    code+="#{rec[1]}=#{rec[0]}\r\n"
  end
  code+="\r\ndef PBTrainers.getName(id)\r\nreturn pbGetMessage(MessageTypes::TrainerTypes,id)\r\nend"
  code+="\r\ndef PBTrainers.getCount\r\nreturn #{count}\r\nend"
  code+="\r\ndef PBTrainers.maxValue\r\nreturn #{maxValue}\r\nend\r\nend"
  eval(code)
  pbAddScript(code,"PBTrainers")
  File.open("Data/trainertypes.dat","wb"){|f|
    Marshal.dump(records,f)
  }
  # Individual trainers
  lines=[]
  linenos=[]
  lineno=1
  File.open("PBS/trainers.txt","rb"){|f|
    FileLineData.file="PBS/trainers.txt"
    f.each_line {|line|
        if lineno==1 && line[0]==0xEF && line[1]==0xBB && line[2]==0xBF
          line=line[3,line.length-3]
        end
        line=prepline(line)
        if line!=""
          lines.push(line)
          linenos.push(lineno)
        end
        lineno+=1
    }
  }
  nameoffset=0
  trainers=[]
  trainernames.clear
  i=0; loop do break unless i<lines.length
    FileLineData.setLine(lines[i],linenos[i])
    trainername=parseTrainer(lines[i])
    FileLineData.setLine(lines[i+1],linenos[i+1])
    nameline=strsplit(lines[i+1],/\s*,\s*/)
    name=nameline[0]
    raise _INTL("Trainer name too long\r\n{1}",FileLineData.linereport) if name.length>=0x10000
    trainernames.push(name)
    partyid=0
    if nameline[1] && nameline[1]!=""
      raise _INTL("Expected a number for the trainer battle ID\r\n{1}",FileLineData.linereport) if !nameline[1][/^\d+$/]
      partyid=nameline[1].to_i
    end
    FileLineData.setLine(lines[i+2],linenos[i+2])
    items=strsplit(lines[i+2],/\s*,\s*/)
    items[0].gsub!(/^\s+/,"")  # Number of Pokémon
    raise _INTL("Expected a number for the number of Pokémon\r\n{1}",FileLineData.linereport) if !items[0][/^\d+$/]
    numpoke=items[0].to_i
    realitems=[]
    for j in 1...items.length  # Items held by Trainer
      realitems.push(parseItem(items[j])) if items[j] && items[j]!=""
    end
    pkmn=[]
    for j in 0...numpoke
      FileLineData.setLine(lines[i+j+3],linenos[i+j+3])
      poke=strsplit(lines[i+j+3],/\s*,\s*/)
      begin
        # Species
        poke[TPSPECIES]=parseSpecies(poke[TPSPECIES])
      rescue
        raise _INTL("Expected a species name: {1}\r\n{2}",poke[0],FileLineData.linereport)
      end
      # Level
      poke[TPLEVEL]=poke[TPLEVEL].to_i
      raise _INTL("Bad level: {1} (must be from 1-{2})\r\n{3}",poke[TPLEVEL],
        PBExperience::MAXLEVEL,FileLineData.linereport) if poke[TPLEVEL]<=0 || poke[TPLEVEL]>PBExperience::MAXLEVEL
      # Held item
      if !poke[TPITEM] || poke[TPITEM]==""
        poke[TPITEM]=TPDEFAULTS[TPITEM]
      else
        poke[TPITEM]=parseItem(poke[TPITEM])
      end
      # Moves
      moves=[]
      for j in [TPMOVE1,TPMOVE2,TPMOVE3,TPMOVE4]
        moves.push(parseMove(poke[j])) if poke[j] && poke[j]!=""
      end
      for j in 0...4
        index=[TPMOVE1,TPMOVE2,TPMOVE3,TPMOVE4][j]
        if moves[j] && moves[j]!=0
          poke[index]=moves[j]
        else
          poke[index]=TPDEFAULTS[index]
        end
      end
      # Ability
      if !poke[TPABILITY] || poke[TPABILITY]==""
        poke[TPABILITY]=TPDEFAULTS[TPABILITY]
      else
        poke[TPABILITY]=poke[TPABILITY].to_i
        raise _INTL("Bad abilityflag: {1} (must be 0 or 1 or 2-5)\r\n{2}",poke[TPABILITY],FileLineData.linereport) if poke[TPABILITY]<0 || poke[TPABILITY]>5
      end
      # Gender
      if !poke[TPGENDER] || poke[TPGENDER]==""
        poke[TPGENDER]=TPDEFAULTS[TPGENDER]
      else
        if poke[TPGENDER]=="M"
          poke[TPGENDER]=0
        elsif poke[TPGENDER]=="F"
          poke[TPGENDER]=1
        else
          poke[TPGENDER]=poke[TPGENDER].to_i
          raise _INTL("Bad genderflag: {1} (must be M or F, or 0 or 1)\r\n{2}",poke[TPGENDER],FileLineData.linereport) if poke[TPGENDER]<0 || poke[TPGENDER]>1
        end
      end
      # Form
      if !poke[TPFORM] || poke[TPFORM]==""
        poke[TPFORM]=TPDEFAULTS[TPFORM]
      else
        poke[TPFORM]=poke[TPFORM].to_i
        raise _INTL("Bad form: {1} (must be 0 or greater)\r\n{2}",poke[TPFORM],FileLineData.linereport) if poke[TPFORM]<0
      end
      # Shiny
      if !poke[TPSHINY] || poke[TPSHINY]==""
        poke[TPSHINY]=TPDEFAULTS[TPSHINY]
      elsif poke[TPSHINY]=="shiny"
        poke[TPSHINY]=true
      else
        poke[TPSHINY]=csvBoolean!(poke[TPSHINY].clone)
      end
      # Nature
      if !poke[TPNATURE] || poke[TPNATURE]==""
        poke[TPNATURE]=TPDEFAULTS[TPNATURE]
      else
        poke[TPNATURE]=parseNature(poke[TPNATURE])
      end
      # IVs
      if !poke[TPIV] || poke[TPIV]==""
        poke[TPIV]=TPDEFAULTS[TPIV]
      else
        poke[TPIV]=poke[TPIV].to_i
        raise _INTL("Bad IV: {1} (must be from 0-31)\r\n{2}",poke[TPIV],FileLineData.linereport) if poke[TPIV]<0 || poke[TPIV]>31
      end
      # Happiness
      if !poke[TPHAPPINESS] || poke[TPHAPPINESS]==""
        poke[TPHAPPINESS]=TPDEFAULTS[TPHAPPINESS]
      else
        poke[TPHAPPINESS]=poke[TPHAPPINESS].to_i
        raise _INTL("Bad happiness: {1} (must be from 0-255)\r\n{2}",poke[TPHAPPINESS],FileLineData.linereport) if poke[TPHAPPINESS]<0 || poke[TPHAPPINESS]>255
      end
      # Nickname
      if !poke[TPNAME] || poke[TPNAME]==""
        poke[TPNAME]=TPDEFAULTS[TPNAME]
      else
        poke[TPNAME]=poke[TPNAME].to_s
        raise _INTL("Bad nickname: {1} (must be 1-20 characters)\r\n{2}",poke[TPNAME],FileLineData.linereport) if (poke[TPNAME].to_s).length>20
      end
      # Shadow
      if !poke[TPSHADOW] || poke[TPSHADOW]==""
        poke[TPSHADOW]=TPDEFAULTS[TPSHADOW]
      else
        poke[TPSHADOW]=csvBoolean!(poke[TPSHADOW].clone)
      end
      # Ball
      if !poke[TPBALL] || poke[TPBALL]==""
        poke[TPBALL]=TPDEFAULTS[TPBALL]
      else
        poke[TPBALL]=poke[TPBALL].to_i
        raise _INTL("Bad form: {1} (must be 0 or greater)\r\n{2}",poke[TPBALL],FileLineData.linereport) if poke[TPBALL]<0
      end
      # EVs
      # HP
      if !poke[TPHPEV] || poke[TPHPEV]==""
        poke[TPHPEV]=TPDEFAULTS[TPHPEV]
      else
        poke[TPHPEV]=poke[TPHPEV].to_i
        raise _INTL("Bad EV: {1} (must be from 0-255)\r\n{2}",poke[TPHPEV],FileLineData.linereport) if poke[TPHPEV]<0 || poke[TPHPEV]>255
      end
      # Atk
      if !poke[TPATKEV] || poke[TPATKEV]==""
        poke[TPATKEV]=TPDEFAULTS[TPATKEV]
      else
        poke[TPATKEV]=poke[TPATKEV].to_i
        raise _INTL("Bad EV: {1} (must be from 0-255)\r\n{2}",poke[TPATKEV],FileLineData.linereport) if poke[TPATKEV]<0 || poke[TPATKEV]>255
      end
      # Def
      if !poke[TPDEFEV] || poke[TPDEFEV]==""
        poke[TPDEFEV]=TPDEFAULTS[TPDEFEV]
      else
        poke[TPDEFEV]=poke[TPDEFEV].to_i
        raise _INTL("Bad EV: {1} (must be from 0-255)\r\n{2}",poke[TPDEFEV],FileLineData.linereport) if poke[TPDEFEV]<0 || poke[TPDEFEV]>255
      end
      # Speed
      if !poke[TPSPEEDEV] || poke[TPSPEEDEV]==""
        poke[TPSPEEDEV]=TPDEFAULTS[TPSPEEDEV]
      else
        poke[TPSPEEDEV]=poke[TPSPEEDEV].to_i
        raise _INTL("Bad EV: {1} (must be from 0-255)\r\n{2}",poke[TPSPEEDEV],FileLineData.linereport) if poke[TPSPEEDEV]<0 || poke[TPSPEEDEV]>255
      end
      # Sp.Atk
      if !poke[TPSATKEV] || poke[TPSATKEV]==""
        poke[TPSATKEV]=TPDEFAULTS[TPSATKEV]
      else
        poke[TPSATKEV]=poke[TPSATKEV].to_i
        raise _INTL("Bad EV: {1} (must be from 0-255)\r\n{2}",poke[TPSATKEV],FileLineData.linereport) if poke[TPSATKEV]<0 || poke[TPSATKEV]>255
      end
      # Sp.Def
      if !poke[TPSDEFEV] || poke[TPSDEFEV]==""
        poke[TPSDEFEV]=TPDEFAULTS[TPSDEFEV]
      else
        poke[TPSDEFEV]=poke[TPSDEFEV].to_i
        raise _INTL("Bad EV: {1} (must be from 0-255)\r\n{2}",poke[TPSDEFEV],FileLineData.linereport) if poke[TPSDEFEV]<0 || poke[TPSDEFEV]>255
      end
      pkmn.push(poke)
    end
    i+=3+numpoke
    MessageTypes.setMessagesAsHash(MessageTypes::TrainerNames,trainernames)
    trainers.push([trainername,name,realitems,pkmn,partyid])
    nameoffset+=name.length
  end
  save_data(trainers,"Data/trainers.dat")
end

These will allow you to give custom EV spreads to trainers. The EVs come after everything else, and in the usual order for Essentials (speed/satk/sdef), so you'd define a trainer's mon like this for a 252 Atk/Speed mon:

Code:
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GYARADOS,50,CHOICEBAND,AQUATAIL,EARTHQUAKE,STONEEDGE,BOUNCE,0,F,,,ADAMANT,31,,kogasa,,,0,252,0,252,0,0

As with the other fields, you don't have to give every trainer's pokemon specially defined EVs, or even extend commas that far. They'll default to 0 in every EV instead of the weird inflated formula vanilla Essentials uses, though.
Credits
DoesntKnowHowToPlay is responsible for making and posting it publicly, all credit goes to him.
Author
DerxwnaKapsyla
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to VS Rival and gyms more competitive, is very cool! Ty ty!
this is awesome for when you want to make AI Trainers at their very best, like with a world championship event or something like it.
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