Resource Advanced AI System 2.4

Sharte · Friday at 1:24 AM

The AI prioritizes physical and special moves over status moves, and doesn't use Stealth Rock, Light Screen, or Reflect on the first turn. It also doesn't use heal moves even when HP is below half, and doesn't use Swords Dance or Dragon Dance very often.
The skill level is 100.
Also, when there is only one member in the party, no move is used when the PP of the most effective move is 0, and no error log is displayed.

Nononever · Friday at 2:38 AM

Nononever updated Advanced AI System with a new update entry:

Fixed Status Moves in Move scorer/ fixed pp bug

Fixed Status Moves in Move scorer/ fixed pp bug

Read the rest of this update entry...

Sharte · Friday at 3:55 AM

Nononever said:
Nononever updated Advanced AI System with a new update entry:

Fixed Status Moves in Move scorer/ fixed pp bug

Read the rest of this update entry...

Sorry
So the PP issue has been resolved.

Nononever · Friday at 6:18 AM

Sharte said:
Sorry
So the PP issue has been resolved.

Huh all good, i want every bug report

Sharte · Friday at 6:50 AM

I don’t think this is a "bug" per se, but I believe the default AI is actually superior when it comes to using status moves.

This is because status moves are almost always chosen with a specific role or "utility" in mind. For example:

Stealth Rock is used to punish switching and to nullify items like Focus Sash or abilities like Sturdy.
Recovery moves are meant to increase a Pokémon's longevity on the field.
Setup moves (stat boosters) are essential for breaking through defensive "walls" or minimizing incoming damage.
Light Screen, Reflect, and Tailwind are specifically brought in to create a tactical advantage for the rest of the team.

Every Pokémon equipped with status moves has a defined role. Therefore, if a Pokémon has a status move and the situation allows it to function effectively, I want the AI to prioritize using it.

Sharte · Friday at 9:51 AM

# Sweep Potential
if user.hp > user.totalhp * 0.7
score += 30
end
else
score -= 40 # Dangerous to setup
end

0_Move_Scorer.rb

Error: I solved it by deleting "end".

Sharte · Friday at 9:55 AM

[Pokémon Essentials version 21.1]
[v21.1 Hotfixes 1.0.9]

Script error in event 2 (coords 11,10), map 544 (AIbattle)
Exception: LoadError
Message: cannot load such file -- pp

***Full script:
pbEntryAndBattle(:KIRIGIRI, "Kirigiri",3,2)
Backtrace:
<internal:prelude>:14:in `require'
<internal:prelude>:14:in `pp'
[Advanced AI System] 0_Move_Scorer.rb:26:in `score_move_advanced'
[Advanced AI System] Core.rb:57:in `pbGetMoveScore'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:522:in `block (3 levels) in pbGetMoveScores'
PBDebug:6:in `logonerr'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:522:in `block (2 levels) in pbGetMoveScores'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:517:in `each'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:517:in `block in pbGetMoveScores'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:481:in `each'
Error occurred

Nononever · Friday at 2:43 PM

Sharte said:
[Pokémon Essentials version 21.1]
[v21.1 Hotfixes 1.0.9]

Script error in event 2 (coords 11,10), map 544 (AIbattle)
Exception: LoadError
Message: cannot load such file -- pp

***Full script:
pbEntryAndBattle(:KIRIGIRI, "Kirigiri",3,2)
Backtrace:
<internal:prelude>:14:in `require'
<internal:prelude>:14:in `pp'
[Advanced AI System] 0_Move_Scorer.rb:26:in `score_move_advanced'
[Advanced AI System] Core.rb:57:in `pbGetMoveScore'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:522:in `block (3 levels) in pbGetMoveScores'
PBDebug:6:in `logonerr'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:522:in `block (2 levels) in pbGetMoveScores'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:517:in `each'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:517:in `block in pbGetMoveScores'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:481:in `each'
Error occurred

Some problems after the overhaul

i fix it today

komeiji514 · Friday at 4:47 PM

There still remains some other bugs/mistakes not reported though.
The plugin names used in self.dbk_enabled?(plugin) isn't correct, and Settings::ZMOVE_TRIGGER_KEY never exist in Z-Power plugin.
Should be the one below.

Ruby:

  # Check if DBK plugin is enabled
  def self.dbk_enabled?(plugin)
    return false unless DBK_PLUGINS[plugin]
   
    # 1. Try PluginManager check (most reliable)
    if defined?(PluginManager) && PluginManager.respond_to?(:installed?)
      plugin_id = case plugin
        when :dynamax           then "[DBK] Dynamax"
        when :terastallization  then "[DBK] Terastalization"
        when :z_moves           then "[DBK] Z-Power"
        when :raid_battles      then "[DBK] Raid Battles"
        when :sos_battles       then "[DBK] SOS Battles"
        else nil
      end
      return true if plugin_id && PluginManager.installed?(plugin_id)
    end
   
    # 2. Fallback to method/constant checks
    case plugin
    when :mega_evolution
      return true # Built-in to Essentials, always available if item held
    when :dynamax
      # Check if Dynamax methods exist (more reliable than constants)
      return defined?(Battle) && Battle.instance_methods.include?(:pbCanDynamax?)
    when :terastallization
      # Check if Terastallization methods exist
      return defined?(Battle) && Battle.instance_methods.include?(:pbCanTerastallize?)
    when :z_moves
      return defined?(Battle) && Battle.instance_methods.include?(:pbCanZMove?)
    when :raid_battles
      return defined?(Battle) && Battle.instance_methods.include?(:pbRaidBattle?)
    when :sos_battles
      return defined?(Battle) && Battle.instance_methods.include?(:pbSOSBattle?)
    else
      return false
    end
  end

And in should_z_move?, user.can_z_move? should be @battle.pbCanZMove?(user.index) to prevent NoMethodError.

MakerBlack · Friday at 7:50 PM

Nononever said:
Nononever updated Advanced AI System with a new update entry:

Fixed Status Moves in Move scorer/ fixed pp bug

Read the rest of this update entry...

I just imported the latest version and it seems to have a structural error in it...

Nononever · Friday at 10:04 PM

MakerBlack said:
I just imported the latest version and it seems to have a structural error in it...

Did a new Structure in 2.0 and posted in the update notes to remove the old version first

The old structure got a bad look with that much files and was not looking good

Since 2.0 all files are sorted

Nononever · Friday at 11:13 PM

komeiji514 said:

There still remains some other bugs/mistakes not reported though.
The plugin names used in self.dbk_enabled?(plugin) isn't correct, and Settings::ZMOVE_TRIGGER_KEY never exist in Z-Power plugin.
Should be the one below.

Ruby:

  # Check if DBK plugin is enabled
  def self.dbk_enabled?(plugin)
    return false unless DBK_PLUGINS[plugin]
  
    # 1. Try PluginManager check (most reliable)
    if defined?(PluginManager) && PluginManager.respond_to?(:installed?)
      plugin_id = case plugin
        when :dynamax           then "[DBK] Dynamax"
        when :terastallization  then "[DBK] Terastalization"
        when :z_moves           then "[DBK] Z-Power"
        when :raid_battles      then "[DBK] Raid Battles"
        when :sos_battles       then "[DBK] SOS Battles"
        else nil
      end
      return true if plugin_id && PluginManager.installed?(plugin_id)
    end
  
    # 2. Fallback to method/constant checks
    case plugin
    when :mega_evolution
      return true # Built-in to Essentials, always available if item held
    when :dynamax
      # Check if Dynamax methods exist (more reliable than constants)
      return defined?(Battle) && Battle.instance_methods.include?(:pbCanDynamax?)
    when :terastallization
      # Check if Terastallization methods exist
      return defined?(Battle) && Battle.instance_methods.include?(:pbCanTerastallize?)
    when :z_moves
      return defined?(Battle) && Battle.instance_methods.include?(:pbCanZMove?)
    when :raid_battles
      return defined?(Battle) && Battle.instance_methods.include?(:pbRaidBattle?)
    when :sos_battles
      return defined?(Battle) && Battle.instance_methods.include?(:pbSOSBattle?)
    else
      return false
    end
  end

And in should_z_move?, user.can_z_move? should be @battle.pbCanZMove?(user.index) to prevent NoMethodError.

My bad, thanks for the report

Nononever · Saturday at 8:51 AM

Nononever updated Advanced AI System with a new update entry:

Fixes

### Critical Fixes
- Side/Field-Targeting Moves Scoring 0
Stealth Rock, Spikes, Reflect, Light Screen, Tailwind and all other moves with
num_targets == 0 were never scored because vanilla Essentials calls
pbGetMoveScore() without a target argument. The scorer's guard clause
(return 0 unless move && user && target) rejected them all.
- Core.rb: Added fallback target resolution — picks the first non-fainted...

Read the rest of this update entry...

Sharte · Saturday at 3:37 PM

[Pokémon Essentials version 21.1]
[v21.1 Hotfixes 1.0.9]

Exception: ArgumentError
Message: malformed format string - %H

Backtrace:
DebugConsole:39:in `printf'
DebugConsole:39:in `echo'
DebugConsole:43:in `echoln'
[Advanced AI System] Core.rb:336:in `rescue in choose_best_replacement_pokemon'
[Advanced AI System] Core.rb:287:in `choose_best_replacement_pokemon'
[Advanced AI System] Debug_Replacement.rb:37:in `choose_best_replacement_pokemon'
AI_Switch:37:in `pbChooseToSwitchOut'
BattlePalaceBattle:185:in `pbChooseToSwitchOut'
BattleArenaBattle:215:in `pbChooseToSwitchOut'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:442:in `block in pbDefaultChooseEnemyCommand'

Interfered with the switch

EricaDesu · Sunday at 1:35 AM

Very nice plugin.
But during testing there was an error

[2026-02-15 01:29:30 +0100]
[Pokémon Essentials version 21.1]
[v21.1 Hotfixes 1.0.9]

Exception: NoMethodError
Message: undefined method `>' for nil:NilClass

Backtrace:
[Advanced AI System] 0_Move_Scorer.rb:1696:in `score_protect_utility'
[Advanced AI System] 0_Move_Scorer.rb:417:in `score_move_advanced'
[Advanced AI System] Core.rb:98:in `pbGetMoveScore'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:512:in `block (2 levels) in pbGetMoveScores'
PBDebug:6:in `logonerr'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:512:in `block in pbGetMoveScores'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:481:in `each'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:481:in `each_with_index'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:481:in `pbGetMoveScores'
[Deluxe Battle Kit] [003] Command Menu Refactor.rb:463:in `pbDefaultChooseEnemyCommand'

I've tried to use U-turn (super-effective in this case (but I don't know if that's important)) and immediately got this.
Game didn't crash after that, but still.

Nononever · Tuesday at 1:16 AM

Nononever updated Advanced AI System with a new update entry:

Missing Moves/Abilities/Items - Bugfixes

v2.4.0 Update — Full Gen 1–9 Coverage + Bug Fixes

Missing support for moves, abilities, and items has been implemented — the AI should now cover everything from Gen 1–9.

Console bug and some other small bugs are fixed too.

Read the rest of this update entry...

Sharte · Tuesday at 2:30 AM

[Pokémon Essentials version 21.1]
[v21.1 Hotfixes 1.0.9]

Exception: NoMethodError
Message: undefined method `damagingMove?' for #<Pokemon::Move>

Backtrace:
[Advanced AI System] Win_Conditions.rb:494:in `block in find_best_attacking_move'
[Advanced AI System] Win_Conditions.rb:493:in `each'
[Advanced AI System] Win_Conditions.rb:493:in `find_best_attacking_move'
[Advanced AI System] Win_Conditions.rb:85:in `block (2 levels) in check_sweep_condition'
[Advanced AI System] Win_Conditions.rb:81:in `each'
[Advanced AI System] Win_Conditions.rb:81:in `block in check_sweep_condition'
[Advanced AI System] Win_Conditions.rb:75:in `each'
[Advanced AI System] Win_Conditions.rb:75:in `check_sweep_condition'
[Advanced AI System] Win_Conditions.rb:57:in `identify_win_condition'
[Advanced AI System] Win_Conditions.rb:386:in `apply_win_condition_bonus'
error!

Nononever · Tuesday at 2:49 AM

Sharte said:
[Pokémon Essentials version 21.1]
[v21.1 Hotfixes 1.0.9]

Exception: NoMethodError
Message: undefined method `damagingMove?' for #<Pokemon::Move>

Backtrace:
[Advanced AI System] Win_Conditions.rb:494:in `block in find_best_attacking_move'
[Advanced AI System] Win_Conditions.rb:493:in `each'
[Advanced AI System] Win_Conditions.rb:493:in `find_best_attacking_move'
[Advanced AI System] Win_Conditions.rb:85:in `block (2 levels) in check_sweep_condition'
[Advanced AI System] Win_Conditions.rb:81:in `each'
[Advanced AI System] Win_Conditions.rb:81:in `block in check_sweep_condition'
[Advanced AI System] Win_Conditions.rb:75:in `each'
[Advanced AI System] Win_Conditions.rb:75:in `check_sweep_condition'
[Advanced AI System] Win_Conditions.rb:57:in `identify_win_condition'
[Advanced AI System] Win_Conditions.rb:386:in `apply_win_condition_bonus'
error!

damn

Nononever · Tuesday at 2:57 AM

Nononever updated Advanced AI System with a new update entry:

undefined method `damagingMove?' for #<Pokemon::Move>

Fixed undefined method `damagingMove?' for #<Pokemon::Move>

Read the rest of this update entry...

Lucem_Wolf · Tuesday at 4:26 AM

I've been waiting for this resource for literally years, thank you so much for taking on the challenge of making it!

A small thing I noticed in a very niche context. Not an error, but potentially of interest anyways. I set up a double battle that had a vivillon that could use rage powder next to an eevee that could use helping hand. They both had attacking moves, but the AI had the eevee use helping hand and the vivillon use rage powder the same turn, leading to the essentially no action from the opponent.

It's definitely niche, but I wonder if there's a way to build in a check that would prevent the usage of rage powder/follow me + helping hand in the same turn? Off the top of my head, it's pretty much the only move combo that literally leads to no actions occurring on the opponent's side (other than splash of course) regardless of what you, the player, does.

Thank you again for the incredible resource!

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