Announcement

[Mithran]

Enemy AI State v 1.0
by Mithran

Introduction
This one is a little hard to explain. This script makes the actor mimic the action list of an enemy by adding a state. When the state is inflicted, the character will autobattle using the action list of the enemy specificed by the state. Certain enemy actions can be excluded altogether.

Features
- force actor into autobattle, using enemy action lists, by using a state

How to Use
Install on its own script page in the materials section of the script editor above main and below default scripts. Also move below any custom battle systems.

Script

» Click to show Spoiler - click again to hide... «

CODE

# Enemy AI State
# v 1.0
# By Mithran at RMVX.net
# Please do not redistribute without asking!
# Requested by squareenix at RMVX.net
# Allows the use of states to force an actor into autobattle.  The actor will
# use the action list of the chosen enemy.

# Note tag for states:
# <enemy ai n>
# Where n is the enemy index you want to copy the AI from.  Use the module below
# to exclue actors from using certain actions when under enemy AI state.
# State display priority is used for determining which AI is used if multiple
# are applied.
# Enemy AI states will not effect enemies.

# Note tag for enemies:
# <level n>
# replace in with the level you want to make the enemy.  If you have another
# script that defines enemy levels, this will be ignored and the script will
# the other method instead.  This is only for the condition 'Party Level' in the
# enemy action list.  An actor with this condition will react based on enemy
# troop level

# Tested SBS and ABS compatable.

# Install: Insert above main and below any custom battle scenes and default scripts.  

# = = = = = = = = = = = = = = = = CUSTOMIZATION = = = = = = = = = = = = = = = = =
module Mithran
  module EnemyAI
    EXCLUDED_KIND = []
    # The above 'kind' commands will not be executed by an actor in enemy AI
    # state. 0 = basic command, 1 = skill, 2 = item
    # Items cannot be used by enemies, so this is just in here for completness

    EXCLUDED_BASIC = [2]
    # The above 'basic' commands will not be executed by an actor in enemy AI
    # state. 0 = attack, 1 = guard, 2 = escape, 3 = wait
    
    EXCLUDED_SKILLS = []
    # The ids of skills that will not be used by an actor in enemy AI state
    
    EXCLUDED_ITEMS = []
    # The ids of items that will not be used by an actor in enemy AI state
    # Items cannot be used by enemies, so this is just in here for completness
  end
end

# = = = = = = = = = = = = = = END CUSTOMIZATION = = = = = = = = = = = = = = = = =

class RPG::State
  def enemy_ai
    return $1.to_i if self.note =~ /<enemy[\s_]?ai\s?(\d+)>/i
    return 0
  end
end

class RPG::Enemy::Action
  attr_accessor :item_id
  def item_id
    @item_id ||= 0
    return @item_id
  end
end

class Game_Battler
  alias add_state_enemyai add_state
  def add_state(state_id)
    if !actor?
      add_state_enemyai(state_id)
      return
    else
      last = use_enemy_ai_index
      add_state_enemyai(state_id)
      if use_enemy_ai_index != last
        make_enemy_action
        @at_count = 999 if !@at_count.nil? && @at_count > 999
        @act_count = 0 if !@act_count.nil?
        @act_active = false
        @at_active = false
        @atb_count_up = true
      end
    end
  end
end


class Game_Actor < Game_Battler
  
  alias auto_battle_enemyai auto_battle
  def auto_battle
    return true if use_enemy_ai_index > 0
    return auto_battle_enemyai
  end
  
  alias make_actor_action make_action
  def make_action
    if use_enemy_ai_index
      make_enemy_action
    else
      make_actor_action
    end
  end
  
  def use_enemy_ai_index
    ai_index = 0
    for state in states
      if state.enemy_ai > 0
        ai_index = state.enemy_ai
        break
      end
    end
    return ai_index
  end
    
  def enemy_actions
    if use_enemy_ai_index == 0
      return []
    elsif use_enemy_ai_index < 999
      enemy = $data_enemies[use_enemy_ai_index]
      if enemy.nil?
        return []
      else
        return enemy.actions
      end
    else
      return []
    end
  end
  
  def eai_conditions_met?(action)
    case action.condition_type
    when 1  # Number of turns
      n = $game_troop.turn_count
      a = action.condition_param1
      b = action.condition_param2
      return false if (b == 0 and n != a)
      return false if (b > 0 and (n < 1 or n < a or n % b != a % b))
    when 2  # HP
      hp_rate = hp * 100.0 / maxhp
      return false if hp_rate < action.condition_param1
      return false if hp_rate > action.condition_param2
    when 3  # MP
      mp_rate = mp * 100.0 / maxmp
      return false if mp_rate < action.condition_param1
      return false if mp_rate > action.condition_param2
    when 4  # State
      return false unless state?(action.condition_param1)
    when 5  # Troop level
      return false if $game_troop.max_level < action.condition_param1
    when 6  # Switch
      switch_id = action.condition_param1
      return false if $game_switches[switch_id] == false
    end
    return true
  end
  
  alias skill_can_use_enemyai skill_can_use?
  def skill_can_use?(skill)
    return super if use_enemy_ai_index > 0
    return skill_can_use_enemyai(skill)
  end
  
  def make_enemy_action
    @action.clear
    return unless movable?
    available_actions = []
    rating_max = 0
    for action in enemy_actions
      next unless eai_conditions_met?(action)
      next if Mithran::EnemyAI::EXCLUDED_KIND.include?(action.kind)
      if action.kind == 0
        next if Mithran::EnemyAI::EXCLUDED_BASIC.include?(action.basic)
      elsif action.kind == 1
        next if Mithran::EnemyAI::EXCLUDED_SKILLS.include?(action.skill_id)
        next unless skill_can_use?($data_skills[action.skill_id])
      elsif action.kind == 2
        next if Mithran::EnemyAI::EXCLUDED_ITEMS.include?(action.item_id)
        next unless $game_party.item_can_use?($data_items[action.item_id])
      end
      available_actions.push(action)
      rating_max = [rating_max, action.rating].max
    end
    ratings_total = 0
    rating_zero = rating_max - 3
    for action in available_actions
      next if action.rating <= rating_zero
      ratings_total += action.rating - rating_zero
    end
    return if ratings_total == 0
    value = rand(ratings_total)
    for action in available_actions
      next if action.rating <= rating_zero
      if value < action.rating - rating_zero
        @action.kind = action.kind
        @action.basic = action.basic
        @action.skill_id = action.skill_id
        @action.item_id = action.item_id
        @action.decide_random_target
        return
      else
        value -= action.rating - rating_zero
      end
    end
  end
end

class Game_Troop < Game_Unit
  unless method_defined?(:max_level)
  def max_level
    max = 0
    for member in members
      max = member.level if member.level > max
    end
    return max
  end
  end
end

class Game_Enemy < Game_Battler
  unless method_defined?(:level)
  def level
    return $1.to_i if enemy.note =~ /<LEVEL (\d+)>/i
    return 0
  end
  end
end

FAQ
q: I want to make my own AI list and give it to an actor.
a: For now, you can create a 'dummy enemy' not used in game. Make the state use enemy AI from the dummy enemy.

q: I want to mimic the stats and or auto states of the enemy, also.
a: Well, you can set something up with my State Parameters PLUS script and Conditional Autostate script. Both are found in my signature.

q: How about a full 'rage' system like on 'Gau' from FFVI?
a: I dont have time for another full system at the moment. For now, you will have to event this out.

Credit and Thanks
- Mithran
- requested by squareenix

Author's Notes
Feedback is welcome. Please do not redistribute without asking. I may expand on this at some point.

[Zxaldien]

wow mithran. you've been pumping out a lot of quality scripts recently. Nice job!

[Mr. Bubble]

Very cool, Mithran. Scripter of the Year in 10 months time for sure.

This can be used to customize the Auto Battle AI of actors like if they only join you for a short time. This is probably the closest way to customize the priority of usage for skills used by Auto Battle members aside from events.

Got a question: Did you script this normally and it turned out to be compatible with the SBS or was there anything you needed to add for it to work?

[Mithran]

Very cool, Mithran. Scripter of the Year in 10 months time for sure.

This can be used to customize the Auto Battle AI of actors like if they only join you for a short time. This is probably the closest way to customize the priority of usage for skills used by Auto Battle members aside from events.

Got a question: Did you script this normally and it turned out to be compatible with the SBS or was there anything you needed to add for it to work?

The methods used for determining auto battle are, thankfully, the same in ATB/SBS as they are in the default battler. It was requested to be compatable with SBS and ATB. This probably would have been compatible with SBS had I just made it for the normal battler. I just turned the autobattle flag on if any of the actor's states specified AI input, then directed them to make their action according to the list, which is essentialy the same methods enemies use with very minor changes for certain conditions (party level) and exclusion of certain actions from the list (like escape). The only bug I ran into with this is that actor's stayed in command input mode if hit by one of these states, when they should have been forced into autobattle. All I really had to do here for ATB compatability is to have, on state add, if the actor's enemy AI index changed, to reset the battler's currently charging(atc, I think?) atb action and to subtract 1 from the atb counter (if full) to kill 'input' mode (so actor command window closes and they use the action list instead). After changing that, everything ran smoothly.

Oh, and in case you were wondering why I had options to exclude items from the action list, well.. I *might* do something with that at some point.

[woratana]

Is it really compatible with ABS?
This would be definitely a good script. ^^/

Nice work as always, Mithran

[Mithran]

Is it really compatible with ABS?
This would be definitely a good script. ^^/

Nice work as always, Mithran

Yep, tested compatable with all three wait modes in the RPG Tankentai Sideview Battle System. Let me know if there are any issues.

[woratana]

Is it worked with PRABS or Requiem?

[Mithran]

Is it worked with PRABS or Requiem?

Sorry, I meant to say compatable with ATB. As for ABS, uses pretty much the methods to determine action as normal enemy actions do. If ATB has some extra or redefined methods to determine enemy actions, I can update it to use those too for ATB compatability. How about a link?

[woratana]

I think most ABS scripts don't use the same way to determine action.
That's why I'm pretty much surprised when you said it worked with ABS. >_>"

Though, still a nice script. ^^

[squareenix]

Sorry for the late reply.
Thanks a million!

EDIT: For some reason, whenever an actor in this state tries to do a skill that attacks all enemies, he/she attacks themselves instead. Any suggestions?

This post has been edited by squareenix: Mar 1 2009, 07:58 AM

[Mithran]

Sorry for the late reply.
Thanks a million!

EDIT: For some reason, whenever an actor in this state tries to do a skill that attacks all enemies, he/she attacks themselves instead. Any suggestions?

Im not seeing this problem. I gave a dummy enemy a few 'attack all' spells (sickle weasel, poison breath, blizzard II) and gave their AI state to Ulrika. Tested it in the ATB/SBS demo and it worked just fine. Is it a particular skill you are having a problem with? Is it just the animation? Not sure how reflect works in SBS, but maybe they are reflecting? Perhaps they fell under 'confusion' before the attack executed, which will force them to attack allies over using the AI list (confusion, berzerk take priority).

[John Dane]

Hey Mitrhan, this is one of my favorite scripts. I see no one has posted here for a while, so I hope this isn't a necropost, seeing as you're an active member of the forum.

I'm using this script extensively for my auto battle actors (in my game, you essentially only control the main character), but I've changed it a bit so they only use skills if they have learned them already.

On line 161, I changed it to:

CODE

return super if use_enemy_ai_index > 0 && @skills.include?(skill.id)

This allows me to set up more conditions where a skill can be used by an auto battle actor. Before I was just using switches for each and every skill that an actor could learn, but of course that got tedious. It's amazing what a tiny line of code can achieve...(or in some cases, ruin).

I'm just posting my results here just in case someone else had similar preferences.

There don't seem to be any bugs so far. I'm also using this in conjunction with Yanfly's YEZ Aggro/AI script. Now my autobattle actors are geniuses.

Thanks Mithran.

[Mithran]

Yep, that will work. You can also accomplish the same by simply commenting out the entire definition for 'skill_can_use?' here, because the only thing it accomplishes is to allow actors to use skills they wouldn't otherwise have access to. Thanks for pointing that out.

[John Dane]

Thanks for all your hard work Mithran.

This post has been edited by John Dane: May 26 2010, 09:42 AM

[tioluko]

Did I understand, or with this the actor can completely imitate the enemy actions?

Serious this is the most "Gau" thing xD

Awesome script^^

Whould you give me authorization to show it in an brazilian community?


Thanks and See ya^^

[Sky00Valentine]

Hey Mithran found a little fix for someones issue with using skills they don't want. Thought you could put this in or make your own edit.

Spoiler:

CODE

module Mithran
  module EnemyAI
    
    KNOWN_SKILLS = [3,4]
    #Any actor_id's in KNOWN_SKILLS will only use skills they know at that time.
    
  end
end

alias skill_can_use_enemyai skill_can_use?
  def skill_can_use?(skill)
    unless Mithran::EnemyAI::KNOWN_SKILLS.include?(id.to_i)
       return super if use_enemy_ai_index > 0
    end
    return skill_can_use_enemyai(skill)
  end

[luigi bros]

Sorry if this is against the rules (for the necropost), but I have a question about the script. How do I set which enemy is used for the state? I want to pick enemy 001 (only attacks), but I have no idea how to customize it.

[Mithran]

Sorry if this is against the rules (for the necropost), but I have a question about the script. How do I set which enemy is used for the state? I want to pick enemy 001 (only attacks), but I have no idea how to customize it.

This script operates off note tags. All you need to do is put the appropriate text in the note box of a state, and whoever is inflicted with that state will use the specified enemy AI.

The note tag is:

CODE

<enemy ai n>

Where n is the id of the enemy.

So in order to have the state make the character use enemy 1's AI:

CODE

<enemy ai 1>

When the state is inflicted upon an actor, they will use the AI of the enemy ID 1.

However, no script is needed if all you want to do is have the actor uncontrollably attack enemies with normal attack, all you need to do is have a state with the restriction field set to "always attack enemies". This script is intended to instead have actors autobattle with a certain skillset they wouldn't otherwise have access to.