NPC Actors, How to make some of your heroes controlled by CPU Options

[Jens of Zanicuud]

RPG NPC Actors

Author: Jens of Zanicuud
Version: 1.0
Released on: 9 Dec 2011
Terms of use: Free use, just credit; for commercial use, you have to ask for permission.
Customization: Free, just link the mod version in this topic...
FAQ or help:Feel free to ask for everything.

Hello everyone again.

This time I'll post the Game_NPC script system...

It handles with heroes controlled by computer. You can set their actions ratings in the Skill panel...
I think it could be useful for host characters or Summons.

To use it, just create a new script and paste the code below.

N.B. You'll need to download these files and put it in the Icons folder to let this script work.
 Icons.zip ( 1.46K ) Number of downloads: 44

CODE

#==============================================================================
# ** Game_NPC Version 1.0 - Jens of Zanicuud
#  Free use, but credit is needed. You can find me on www.rpgrevolution.com
#  Just advise me if you want to employ it anywhere
#------------------------------------------------------------------------------
#  This class handles with actors controlled by CPU...
#  In Skill Window you can set the rating of their actions.
#  
#==============================================================================

NPC = [5,6]  #Set here the IDs of all NPC actors

#==============================================================================
# ** Game_Party
#------------------------------------------------------------------------------
#  This class handles the party. It includes information on amount of gold
#  and items. Refer to "$game_party" for the instance of this class.
#==============================================================================

class Game_Party
  #--------------------------------------------------------------------------
  # * good_health? (i.e. all party with heal greater than 70%)
  #--------------------------------------------------------------------------
  def good_health?
    flag = true
    for actor in self.actors
      if actor.hp*100/actor.maxhp < 70.0
        flag = false
      end
    end
    return flag
  end
  #--------------------------------------------------------------------------
  # * weakest actor (i.e. actors with lesser heal)
  #--------------------------------------------------------------------------
  def weakest_actors_roulette
    weakest = [self.actors[0]]
    for actor in self.actors
      if actor.hp*100/actor.maxhp < weakest[0].hp*100/actor.maxhp
        weakest = [actor]
      elsif actor.hp*100/actor.maxhp == weakest[0].hp*100/actor.maxhp
        weakest.push(actor)
      end
    end
    return weakest[rand(weakest.size)]
  end
  
  
  
  end
#==============================================================================
# ** Game_Game_BattleAction
#------------------------------------------------------------------------------
#  Added ratings in actions
#==============================================================================

class Game_BattleAction
  #--------------------------------------------------------------------------
  # * Public Instance Variables
  #--------------------------------------------------------------------------
  attr_accessor :speed                    # speed
  attr_accessor :kind                     # kind (basic / skill / item)
  attr_accessor :basic                    # basic (attack / guard / escape)
  attr_accessor :skill_id                 # skill ID
  attr_accessor :item_id                  # item ID
  attr_accessor :target_index             # target index
  attr_accessor :forcing                  # forced flag
  attr_accessor :rating                   # rating
  #--------------------------------------------------------------------------
  # * Object Initialization
  #--------------------------------------------------------------------------
  def initialize
    clear
  end
  #--------------------------------------------------------------------------
  # * Clear
  #--------------------------------------------------------------------------
  def clear
    @speed = 0
    @kind = 0
    @basic = 3
    @skill_id = 0
    @item_id = 0
    @target_index = -1
    @forcing = false
    @rating = 0
  end
  #--------------------------------------------------------------------------
  # * Skill
  #--------------------------------------------------------------------------
  def skill
    return $data_skills[self.skill_id]
  end
  #--------------------------------------------------------------------------
  # * Random Target (for NPC)
  #--------------------------------------------------------------------------
  def decide_random_target_for_NPC
    # Diverge with effect scope
    
    #NEW HP check
    if self.kind == 1 and self.skill.power < 0
      if for_one_friend?
        battler = $game_party.weakest_actors_roulette
      end
    end
    
    if battler == nil
    if for_one_friend_hp0?
      battler = $game_party.random_target_actor_hp0
    elsif for_one_friend?
      battler = $game_party.random_target_actor
    else
      battler = $game_troop.random_target_enemy
    end
    end
    # If a target exists, get an index, and if a target doesn't exist,
    # clear the action
    if battler != nil
      @target_index = battler.index
    else
      clear
    end
  end
end

#==============================================================================
# ** Game_NPC
#------------------------------------------------------------------------------
#  This class handles the actor. It's used within the Game_Actors class
#  ($game_actors) and refers to the Game_Party class ($game_party).
#==============================================================================


class Game_NPC < Game_Actor
  #--------------------------------------------------------------------------
  # * Setup
  #     actor_id : actor ID
  #--------------------------------------------------------------------------
  def setup(actor_id)
  super
  @rates = {}
  for i in -3...$data_skills.size
  @rates[i] = 4
  end
  end
  #--------------------------------------------------------------------------
  # * Actions
  #--------------------------------------------------------------------------
  def actions
    act = []
    for id in self.skills
      skill = $data_skills[id]
      ab = Game_BattleAction.new
      ab.kind = 1
      ab.skill_id = skill.id
      ab.rating = @rates[skill.id]
      act.push(ab)
    end
      ab = Game_BattleAction.new
      ab.kind = 0
      ab.basic = 0
      ab.rating = @rates[0]
      act.push(ab)
      ab = Game_BattleAction.new
      ab.kind = 0
      ab.basic = 1
      ab.rating = @rates[-1]
      act.push(ab)
    return act
  end
  #--------------------------------------------------------------------------
  # * Rates
  #--------------------------------------------------------------------------
  def rates(index)
    return @rates[index]
  end
  #--------------------------------------------------------------------------
  # * Change Rates
  #--------------------------------------------------------------------------
  def change_rate(skill_id,rate)
    @rates[skill_id] = rate
  end
  #--------------------------------------------------------------------------
  # * Make Action
  #--------------------------------------------------------------------------
  def make_action
    # Clear current action
    self.current_action.clear
    # If unable to move
    unless self.movable?
      # End Method
      return
    end
    # Extract current effective actions
    available_actions = []
    rating_max = 0
    for action in self.actions
      # Confirm sp conditions
      if action.kind == 1 and $data_skills[action.skill_id].sp_cost>self.sp
        next
      end
      # Confirm rating conditions
      if action.rating == 0
        next
      end
  #NEW# Stop healing skills to be used if there's no target
      test_skill = $data_skills[action.skill_id]
      if action.kind == 1 and test_skill.power < 0 and
        (test_skill.scope == 3 or test_skill.scope == 4)
        if $game_party.good_health?
        next
        end
      end
      # Add this action to applicable conditions
      available_actions.push(action)
      if action.rating > rating_max
        rating_max = action.rating
      end
    end
    # Calculate total with max rating value at 3 (exclude 0 or less)
    ratings_total = 0
    for action in available_actions
      if action.rating > rating_max - 3
        ratings_total += action.rating - (rating_max - 3)
      end
    end
    # If ratings total isn't 0
    if ratings_total > 0
      # Create random numbers
      value = rand(ratings_total)
      # Set things that correspond to created random numbers as current action
      for action in available_actions
        if action.rating > rating_max - 3
          if value < action.rating - (rating_max - 3)
            self.current_action.kind = action.kind
            self.current_action.basic = action.basic
            self.current_action.skill_id = action.skill_id
            self.current_action.decide_random_target_for_NPC
            return
          else
            value -= action.rating - (rating_max - 3)
          end
        end
      end
    end
  end
  #--------------------------------------------------------------------------
  # * Inputable?
  #--------------------------------------------------------------------------
  def inputable?
    return false
  end
end

#==============================================================================
# ** Game_Actors
#------------------------------------------------------------------------------
#  This class handles the actor array. Refer to "$game_actors" for each
#  instance of this class.
#==============================================================================

class Game_Actors
  #--------------------------------------------------------------------------
  # * Object Initialization
  #--------------------------------------------------------------------------
  def initialize
    @data = []
  end
  #--------------------------------------------------------------------------
  # * Get Actor
  #     actor_id : actor ID
  #--------------------------------------------------------------------------
  def [](actor_id)
    if actor_id > 999 or $data_actors[actor_id] == nil
      return nil
    end
    if @data[actor_id] == nil
      if NPC.include?(actor_id)
      @data[actor_id] = Game_NPC.new(actor_id)
      else
      @data[actor_id] = Game_Actor.new(actor_id)
      end
    end
    return @data[actor_id]
  end
  #--------------------------------------------------------------------------
  # * Change to NPC
  #     actor_id : actor ID
  #--------------------------------------------------------------------------
  def change_to_NPC(id)
    @data[id] = Game_NPC.new(id)
  end
end

#==============================================================================
# ** Scene_Battle
#------------------------------------------------------------------------------
#  This class performs battle screen processing.
#==============================================================================

class Scene_Battle

  #--------------------------------------------------------------------------
  # * Start Main Phase
  #--------------------------------------------------------------------------
  def start_phase4
    # Shift to phase 4
    @phase = 4
    # Turn count
    $game_temp.battle_turn += 1
    # Search all battle event pages
    for index in 0...$data_troops[@troop_id].pages.size
      # Get event page
      page = $data_troops[@troop_id].pages[index]
      # If this page span is [turn]
      if page.span == 1
        # Clear action completed flags
        $game_temp.battle_event_flags[index] = false
      end
    end
    # Set actor as unselectable
    @actor_index = -1
    @active_battler = nil
    # Enable party command window
    @party_command_window.active = false
    @party_command_window.visible = false
    # Disable actor command window
    @actor_command_window.active = false
    @actor_command_window.visible = false
    # Set main phase flag
    $game_temp.battle_main_phase = true
    # Make enemy action
    for enemy in $game_troop.enemies
      enemy.make_action
    end
    for actor in $game_party.actors
      if actor.is_a?(Game_NPC)
      actor.make_action
      end
    end
    # Make action orders
    make_action_orders
    # Shift to step 1
    @phase4_step = 1
  end
  end


#==============================================================================
# ** Window_Skill
#------------------------------------------------------------------------------
#  This window displays usable skills on the skill and battle screens.
#==============================================================================

class Window_Skill < Window_Selectable
  #--------------------------------------------------------------------------
  # * Refresh
  #--------------------------------------------------------------------------
  def refresh
    if self.contents != nil
      self.contents.dispose
      self.contents = nil
    end
    @data = []
    @data.push("Attacco") if @actor.is_a?(Game_NPC)
    @data.push("Guardia") if @actor.is_a?(Game_NPC)
    for i in 0...@actor.skills.size
      skill = $data_skills[@actor.skills[i]]
      if skill != nil
        @data.push(skill)
      end
    end
    # If item count is not 0, make a bit map and draw all items
    @item_max = @data.size
    if @item_max > 0
      self.contents = Bitmap.new(width - 32, row_max * 32)
      for i in 0...@item_max
        draw_item(i)
      end
    end
  end
  #--------------------------------------------------------------------------
  # * Draw Item
  #     index : item number
  #--------------------------------------------------------------------------
  def draw_item(index)
    skill = @data[index]
    if skill.is_a?(String)
      case skill
      when "Attacco"
        id = 0
      when "Guardia"
        id = -1
      end
    self.contents.font.color = normal_color
    x = 4 + index % 2 * (288 + 32)
    y = index / 2 * 32
    rect = Rect.new(x, y, self.width / @column_max - 32, 32)
    self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
    case @actor.rates(id)
    when 5
    bitmap = RPG::Cache.icon("High")
    when 4
    bitmap = RPG::Cache.icon("Medium")
    when 3
    bitmap = RPG::Cache.icon("Low")
    when 0
    bitmap = RPG::Cache.icon("Never")
    end
    opacity = 255
    self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24), opacity)
    self.contents.draw_text(x + 28, y, 204, 32, skill, 0)
    else
    if @actor.skill_can_use?(skill.id) or @actor.is_a?(Game_NPC)
      self.contents.font.color = normal_color
    else
      self.contents.font.color = disabled_color
    end
    x = 4 + index % 2 * (288 + 32)
    y = index / 2 * 32
    rect = Rect.new(x, y, self.width / @column_max - 32, 32)
    self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
    if @actor.is_a?(Game_NPC)
    case @actor.rates(skill.id)
    when 5
    bitmap = RPG::Cache.icon("High")
    when 4
    bitmap = RPG::Cache.icon("Medium")
    when 3
    bitmap = RPG::Cache.icon("Low")
    when 0
    bitmap = RPG::Cache.icon("Never")
    end
    else
    bitmap = RPG::Cache.icon(skill.icon_name)
    end
    opacity = self.contents.font.color == normal_color ? 255 : 128
    self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24), opacity)
    self.contents.draw_text(x + 28, y, 204, 32, skill.name, 0)
    self.contents.draw_text(x + 232, y, 48, 32, skill.sp_cost.to_s, 2)
  end
end
  #--------------------------------------------------------------------------
  # * Help Text Update
  #--------------------------------------------------------------------------
  def update_help
    if self.skill == "Attack"
    description = "Regular attack with equipped weapon."
  elsif self.skill == "Guard"
    description = "Halves damage received."
    else
    description = self.skill.description if self.skill != nil
    end
    @help_window.set_text(description == nil ? "" : description )
  end
end

#==============================================================================
# ** Scene_Skill
#------------------------------------------------------------------------------
#  This class performs skill screen processing.
#==============================================================================

class Scene_Skill
  #--------------------------------------------------------------------------
  # * Object Initialization
  #     actor_index : actor index
  #--------------------------------------------------------------------------
  def initialize(actor_index = 0, equip_index = 0)
    @actor_index = actor_index
  end
  #--------------------------------------------------------------------------
  # * Main Processing
  #--------------------------------------------------------------------------
  def main
    # Get actor
    @actor = $game_party.actors[@actor_index]
    # Make help window, status window, and skill window
    @help_window = Window_Help.new
    @status_window = Window_SkillStatus.new(@actor)
    @skill_window = Window_Skill.new(@actor)
    # Associate help window
    @skill_window.help_window = @help_window
    # Make target window (set to invisible / inactive)
    @target_window = Window_Target.new
    @target_window.visible = false
    @target_window.active = false
    # Execute transition
    Graphics.transition
    # Main loop
    loop do
      # Update game screen
      Graphics.update
      # Update input information
      Input.update
      # Frame update
      update
      # Abort loop if screen is changed
      if $scene != self
        break
      end
    end
    # Prepare for transition
    Graphics.freeze
    # Dispose of windows
    @help_window.dispose
    @status_window.dispose
    @skill_window.dispose
    @target_window.dispose
  end
  #--------------------------------------------------------------------------
  # * Frame Update
  #--------------------------------------------------------------------------
  def update
    # Update windows
    @help_window.update
    @status_window.update
    @skill_window.update
    @target_window.update
    # If skill window is active: call update_skill
    if @skill_window.active
      update_skill
      return
    end
    # If skill target is active: call update_target
    if @target_window.active
      update_target
      return
    end
  end
  #--------------------------------------------------------------------------
  # * Frame Update (if skill window is active)
  #--------------------------------------------------------------------------
  def update_skill
    # If B button was pressed
    if Input.trigger?(Input::B)
      # Play cancel SE
      $game_system.se_play($data_system.cancel_se)
      # Switch to menu screen
      $scene = Scene_Menu.new(1)
      return
    end
    # If C button was pressed
    if @actor.is_a?(Game_NPC)
      if Input.trigger?(Input::C)
      $game_system.se_play($data_system.decision_se)
      @skill = @skill_window.skill if @skill_window.index > 0
      update_command
      return
      end
      else
    if Input.trigger?(Input::C)
      # Get currently selected data on the skill window
      @skill = @skill_window.skill
      # If unable to use
      if @skill == nil or not @actor.skill_can_use?(@skill.id)
        # Play buzzer SE
        $game_system.se_play($data_system.buzzer_se)
        return
      end
      # Play decision SE
      $game_system.se_play($data_system.decision_se)
      # If effect scope is ally
      if @skill.scope >= 3
        # Activate target window
        @skill_window.active = false
        @target_window.x = (@skill_window.index + 1) % 2 * 304
        @target_window.visible = true
        @target_window.active = true
        # Set cursor position to effect scope (single / all)
        if @skill.scope == 4 || @skill.scope == 6
          @target_window.index = -1
        elsif @skill.scope == 7
          @target_window.index = @actor_index - 10
        else
          @target_window.index = 0
        end
      # If effect scope is other than ally
      else
        # If common event ID is valid
        if @skill.common_event_id > 0
          # Common event call reservation
          $game_temp.common_event_id = @skill.common_event_id
          # Play use skill SE
          $game_system.se_play(@skill.menu_se)
          # Use up SP
          @actor.sp -= @skill.sp_cost
          # Remake each window content
          @status_window.refresh
          @skill_window.refresh
          @target_window.refresh
          # Switch to map screen
          $scene = Scene_Map.new
          return
        end
      end
      return
    end
    end
    # If R button was pressed
    if Input.trigger?(Input::R)
      # Play cursor SE
      $game_system.se_play($data_system.cursor_se)
      # To next actor
      @actor_index += 1
      @actor_index %= $game_party.actors.size
      # Switch to different skill screen
      $scene = Scene_Skill.new(@actor_index)
      return
    end
    # If L button was pressed
    if Input.trigger?(Input::L)
      # Play cursor SE
      $game_system.se_play($data_system.cursor_se)
      # To previous actor
      @actor_index += $game_party.actors.size - 1
      @actor_index %= $game_party.actors.size
      # Switch to different skill screen
      $scene = Scene_Skill.new(@actor_index)
      return
    end
  end
  #--------------------------------------------------------------------------
  # * Frame Update (when target window is active)
  #--------------------------------------------------------------------------
  def update_target
    # If B button was pressed
    if Input.trigger?(Input::B)
      # Play cancel SE
      $game_system.se_play($data_system.cancel_se)
      # Erase target window
      @skill_window.active = true
      @target_window.visible = false
      @target_window.active = false
      return
    end
    # If C button was pressed
    if Input.trigger?(Input::C)
      # If unable to use because SP ran out
      unless @actor.skill_can_use?(@skill.id)
        # Play buzzer SE
        $game_system.se_play($data_system.buzzer_se)
        return
      end
      # If target is all
      if @target_window.index == -1
        # Apply skill use effects to entire party
        used = false
        for i in $game_party.actors
          used |= i.skill_effect(@actor, @skill)
        end
      end
      # If target is user
      if @target_window.index <= -2
        # Apply skill use effects to target actor
        target = $game_party.actors[@target_window.index + 10]
        used = target.skill_effect(@actor, @skill)
      end
      # If single target
      if @target_window.index >= 0
        # Apply skill use effects to target actor
        target = $game_party.actors[@target_window.index]
        used = target.skill_effect(@actor, @skill)
      end
      # If skill was used
      if used
        # Play skill use SE
        $game_system.se_play(@skill.menu_se)
        # Use up SP
        @actor.sp -= @skill.sp_cost
        # Remake each window content
        @status_window.refresh
        @skill_window.refresh
        @target_window.refresh
        # If entire party is dead
        if $game_party.all_dead?
          # Switch to game over screen
          $scene = Scene_Gameover.new
          return
        end
        # If command event ID is valid
        if @skill.common_event_id > 0
          # Command event call reservation
          $game_temp.common_event_id = @skill.common_event_id
          # Switch to map screen
          $scene = Scene_Map.new
          return
        end
      end
      # If skill wasn't used
      unless used
        # Play buzzer SE
        $game_system.se_play($data_system.buzzer_se)
      end
      return
    end
  end
  #--------------------------------------------------------------------------
  # * Frame Update (when arrow window is active)
  #--------------------------------------------------------------------------
  def update_command
      if @skill_window.index == 0
      rate = 0
      elsif @skill_window.index == 1
      rate = -1
      else
      rate = @skill.id
      end
      case @actor.rates(rate)
      when 0
      rate = 3
      when 3
      rate = 4
      when 4
      rate = 5
      when 5
      rate = 0
      end
      if @skill_window.index == 0
      @actor.change_rate(0,rate)
      elsif @skill_window.index == 1
      @actor.change_rate(-1,rate)
      else
      @actor.change_rate(@skill.id,rate)
      end
      @skill_window.refresh
      return
    end
end

That's all folks! I hope it can be useful.
See you next script...

Jens

This post has been edited by Jens of Zanicuud: Dec 10 2011, 04:51 AM