RGSS2 .NOTE

# ** Conditional Skills And Equipment
------------------------------------------------------------------------------
# By Syvkal
# Version 2.6.1
# 05-09-08
#==============================================================================
#
#  - INTRODUCTION -
#
# This script can be used to set special use conditions to skills and equipment
# There are a number of different ones you can check:
#
#------------------------------------------------------------------------------
#
#  - FEATURES - 
#
#  There are a number of different Conditional features that can be used
#  These include:
#
#  STATE  - Whether certain states are inflicted
#  WEAPON - Whether certain weapons are equipped
#  ARMOUR - Whether certain armours are equipped
#  ITEM   - Whether certain items are in your inventory (which can be used up)
#  HP     - Whether HP is MORE or LESS than a percent of the MAXHP
#  GOLD   - Whether the party has a certain amount of gold (which can be used up)
#  LEVEL  - Whether the LEVEL is MORE or LESS than a certain point
#  CLASS  - Whether the actor is a certain class
#  PARTYMEMBER - Whether a certain actor is in your party (and alive)
#  PARTYNUMBER - Whether a certain amount of actors are in your party (and alive)
#  FREEHAND    - Whether the actor has 1 or 2 free hands
#  ATK  -  Whether the actor has a certain amount of ATK
#  DEF  -  Whether the actor has a certain amount of DEF
#  SPI  -  Whether the actor has a certain amount of SPI
#  AGI  -  Whether the actor has a certain amount of AGI
#
#  NOSHOW - Add this to make a skill not appear when it can't be used
#
#  More than one can be used on any skill or equipement
#  However only some can be used for skills and only some for equipement
#
#------------------------------------------------------------------------------
#
#  - USAGE -
#
#  First make a skill/equipment in the Database and in it's note box place this:
#
#        <skill>                  <equip>
#         .....         or         .....
#        <skill>                  <equip>
#
#  You must place any necessary Coding or tags in there
#  Anything you place in there must be on a separate line
#
#  Condition tags must be followed by a number, multiple numbers can be entered
#  these must be separated by a comma ','
#  Some conditions can use the '&' feature
#
#  See EXAMPLES if you are unsure  
#
#------------------------------------------------------------------------------
#
#  - SKILLS -
#
#   The special conditions that can be set to skills are as follows:
#
#           STATE  WEAPON  ARMOUR  HPLESS  HPMORE
#           FREEHAND  ITEM  ITEMUSE  GOLD  GOLDUSE
#                LEVELLESS  LEVELMORE  CLASS
#                 PARTYNUMBER  PARTYMEMBER
#
#------------------------------------------------------------------------------
#
# - EQUIPMENT - 
#
#   The special conditions that can be set to equipment are as follows:
#
#           LEVELLESS  LEVELMORE  WEAPON  ARMOUR
#                    ATK  DEF  SPI  AGI
#
#------------------------------------------------------------------------------
#
#  - EXAMPLES -
#
#   Here is a list of examples to show you how to use each condition:
#
#   STATE12    -  State 12 must be inflicted to use the skill
#   WEAPON1    -  Weapon 1 must be equipped to use the skill
#   ARMOUR2,9  -  Both armours 2 and 9 must be equipped to use the skill
#   FREEHAND2  -  Both of the actors hands must be free to use the skill
#   HPLESS25   -  Health must be below 25% to use the skill
#   HPMORE50   -  Health must be above 50% to use the skill
#   ITEM1,2    -  Must have items 1, 2 and 3 to use the skill
#   ITEMUSE1,2 -  Must have and will use 1 of items 1 and 2 to use the skill
#   ITEM1&3,2  -  Must have 3 of item 1 and 1 of item 2 to use the skill
#   ITEMUSE1&3 -  Must have and will use 3 of item 1 to use the skill
#   GOLD1000   -  Must have 1000 Gold to use the skill
#   GOLDUSE100 -  Must have and will use 100 Gold to use the skill
#   CLASS1,2   -  Must be Class 1 or 2 (RTP : Paladin, Warrior) to use the skill
#   LEVELLESS5 -  Must be under Level 5 to use the skill
#   LEVELMORE9 -  Must be over level 9 to use the skill
#   PARTYMEMBER4 -  Must have Actor 4 (RTP : Ylva) to use the skill
#   PARTYNUMBER3 -  Must have 3 or more actors in the party to use the skill
#   ATK100  -  Must have ATK greater than or equal to 100
#   DEF100  -  Must have DEF greater than or equal to 100
#   SPI100  -  Must have SPI greater than or equal to 100
#   AGI100  -  Must have AGI greater than or equal to 100
#
#==============================================================================

   #===================================================#
   #  **  C O N F I G U R A T I O N   S Y S T E M  **  #
   #===================================================#
   
 # Remove Equipment when conditions don't apply anymore?
 REMOVE_EQUIP  = true
 # Show a message saying that the equipment has been removed?
 SHOW_MESSAGE  = true
 # Speed at which the message will disappear
 MESSAGE_SPEED = 2     # 1 = Slow     2 = Medium     3+ = Very Fast
 # Amount of frames the message will stay for
 MESSAGE_STAY = 20     # 20 is average - You want it lower if the speed is slow
 # Use an Icon in the message?
 USE_ICON      = true
 # Message that tells you what has been removed
 EQUIP_REMOVE  = "%s unequipped"
 # Message explain's why
 EQUIP_MESSAGE = "%s can't use it anymore."

   #===================================================#
   #  **     E N D   C O N F I G U R A T I O N     **  #
   #===================================================#

#==============================================================================
# ** Script Import
#------------------------------------------------------------------------------
#  Added to make it work with or without Conditional Skills
#==============================================================================
  
  $imported = {} if $imported == nil
  $imported["ConditionalSkill"] = true
   
#==============================================================================
# ** Game_Battler
#------------------------------------------------------------------------------
#  Added Checks for Conditional Skills And Equipment
#==============================================================================

class Game_Battler
  #--------------------------------------------------------------------------
  # * Alias Listings
  #--------------------------------------------------------------------------  
  alias skill_use_original skill_can_use?
  #--------------------------------------------------------------------------
  # * Includes The NOTES Module
  #--------------------------------------------------------------------------  
  include NOTES
  #--------------------------------------------------------------------------
  # * Determine Usable Skills
  #--------------------------------------------------------------------------
  def skill_can_use?(skill)
    return false unless skill_condition_can_use?(skill)
    skill_use_original(skill)
  end
  #--------------------------------------------------------------------------
  # * Determine Usable Skill Conditions
  #--------------------------------------------------------------------------
  def skill_condition_can_use?(skill)
    if has_tag?(skill.note, '<skill>')
      @conditions = get_tag_area(skill.note, '<skill>')
      if has_tag?(@conditions,'STATE')
        @tags = get_tag(@conditions,'STATE')
        for i in 0...@tags.size
          return false unless state?(@tags[i].to_i)
        end
      end
      if has_tag?(@conditions,'WEAPON')
        @tags = get_tag(@conditions,'WEAPON')
        for i in 0...@tags.size
          return false unless weapons.include?($data_weapons[@tags[i].to_i])
        end
      end
      if has_tag?(@conditions,'ARMOUR')
        @tags = get_tag(@conditions,'ARMOUR')
        for i in 0...@tags.size
          return false unless armors.include?($data_armors[@tags[i].to_i])
        end
      end 
      if has_tag?(@conditions,'ITEM')
        @tags = get_multiple_tag(@conditions,'ITEM','USE')
        for i in 0...@tags.size
          if @tags[i].is_a?(Array)
            return false unless $game_party.item_number($data_items[@tags[i][0].to_i]) >= @tags[i][1].to_i
          else
            return false unless $game_party.item_number($data_items[@tags[i].to_i]) >= 1
          end
        end  
      end
      if has_tag?(@conditions,'ITEM','USE')
        @tags = get_multiple_tag(@conditions,'ITEM','USE')
        for i in 0...@tags.size
          if @tags[i].is_a?(Array)
            return false unless $game_party.item_number($data_items[@tags[i][0].to_i]) >= @tags[i][1].to_i
          else
            return false unless $game_party.item_number($data_items[@tags[i].to_i]) >= 1
          end
        end  
      end
      if has_tag?(@conditions,'HP','LESS')
        @tags = get_tag(@conditions,'HP','LESS')
        return false unless hp <= maxhp / (100 / @tags[0].to_i)
      end
      if has_tag?(@conditions,'HP','MORE')
        @tags = get_tag(@conditions,'HP','MORE')
        return false unless hp >= maxhp / (100 / @tags[0].to_i)
      end
      if has_tag?(@conditions,'LEVEL','LESS')
        @tags = get_tag(@conditions,'LEVEL','LESS')
        return false unless @level < @tags[0].to_i
      end
      if has_tag?(@conditions,'LEVEL','MORE')
        @tags = get_tag(@conditions,'LEVEL','MORE')
        return false unless @level > @tags[0].to_i
      end
      if has_tag?(@conditions,'CLASS')
        @tags = get_tag(@conditions,'CLASS')
        return false unless @class_id == @tags[0].to_i or @tags[1].to_i
      end
      if has_tag?(@conditions,'GOLD')
        @tags = get_multiple_tag(@conditions,'GOLD','USE')
        return false unless $game_party.gold >= @tags[0].to_i
      end
      if has_tag?(@conditions,'GOLD','USE')
        @tags = get_multiple_tag(@conditions,'GOLD','USE')
        return false unless $game_party.gold >= @tags[0].to_i
      end
      if has_tag?(@conditions,'PARTY','NUMBER')
        @tags = get_multiple_tag(@conditions,'PARTY','NUMBER')
        return false unless $game_party.existing_members.size >= @tags[0].to_i
      end
      if has_tag?(@conditions,'PARTY','MEMBER')
        @tags = get_multiple_tag(@conditions,'PARTY','MEMBER')
        return false unless $game_party.existing_members.include?($game_actors[@tags[0].to_i])
      end
      if has_tag?(@conditions,'FREEHAND')
        @tags = get_tag(@conditions,'FREEHAND')
        return false unless free_hands >= @tags[0].to_i
      end
    end
    return true
  end
  #--------------------------------------------------------------------------
  # * Determine Usable Equipment Conditions
  #--------------------------------------------------------------------------
  def equipment_can_use?(equip)
    if equip != nil
      if has_tag?(equip.note, '<equip>')
        @conditions = get_tag_area(equip.note, '<equip>')
        if has_tag?(@conditions,'LEVEL','LESS')
          @tags = get_tag(@conditions,'LEVEL','LESS')
          return false unless @level < @tags[0].to_i
        end
        if has_tag?(@conditions,'LEVEL','MORE')
          @tags = get_tag(@conditions,'LEVEL','MORE')
          return false unless @level > @tags[0].to_i
        end
        if has_tag?(@conditions,'WEAPON')
          @tags = get_tag(@conditions,'WEAPON')
          for i in 0...@tags.size
            return false unless weapons.include?($data_weapons[@tags[i].to_i])
          end
        end
        if has_tag?(@conditions,'ARMOUR')
          @tags = get_tag(@conditions,'ARMOUR')
          for i in 0...@tags.size
            return false unless armors.include?($data_armors[@tags[i].to_i])
          end
        end 
        if has_tag?(@conditions,'ATK')
          @tags = get_tag(@conditions,'ATK')
          return false unless actor.parameters[2, @level] >= @tags[0].to_i
        end
        if has_tag?(@conditions,'DEF')
          @tags = get_tag(@conditions,'DEF')
          return false unless actor.parameters[3, @level] >= @tags[0].to_i
        end
        if has_tag?(@conditions,'SPI')
          @tags = get_tag(@conditions,'SPI')
          return false unless actor.parameters[4, @level] >= @tags[0].to_i
        end
        if has_tag?(@conditions,'AGI')
          @tags = get_tag(@conditions,'AGI')
          return false unless actor.parameters[5, @level] >= @tags[0].to_i
        end
      end
    end
    return true
  end
  #--------------------------------------------------------------------------
  # * Determine Hidden Skills
  #--------------------------------------------------------------------------
  def show_skill?(skill)
    return true if skill_can_use?(skill)
    if has_tag?(skill.note,'NOSHOW')
      return skill_condition_can_use?(skill)
    end
    return true
  end
  #--------------------------------------------------------------------------
  # * Check For Free Hands
  #--------------------------------------------------------------------------
  def free_hands
    @free_hands = 0
    @free_hands += @weapon_id==0 ? 1 : 0
    @free_hands += @armor1_id==0 ? 1 : 0
    return @free_hands
  end
end

#==============================================================================
# ** Scene_Battle
#------------------------------------------------------------------------------
#  Added removal of necessary skill components
#==============================================================================

class Scene_Battle < Scene_Base
  #--------------------------------------------------------------------------
  # * Alias Listings
  #--------------------------------------------------------------------------  
  alias execute_skill_original execute_action_skill
  #--------------------------------------------------------------------------
  # * Includes The NOTES Module
  #--------------------------------------------------------------------------  
  include NOTES
  #--------------------------------------------------------------------------
  # * Execute Battle Action: Skill
  #--------------------------------------------------------------------------
  def execute_action_skill
    execute_skill_original
    skill = @active_battler.action.skill
    if has_tag?(skill.note, '<skill>')
      @conditions = get_tag_area(skill.note, '<skill>')
      if has_tag?(@conditions,'ITEM','USE')
        @tags = get_multiple_tag(@conditions,'ITEM','USE')
        for i in 0...@tags.size
          if @tags[i].is_a?(Array)
            $game_party.lose_item($data_items[@tags[i][0].to_i],@tags[i][1].to_i,true)
          else
            $game_party.lose_item($data_items[@tags[i].to_i],1,true)
          end
        end
      end
      if has_tag?(@conditions,'GOLD','USE')
        @tags = get_tag(@conditions,'GOLD','USE')
        $game_party.lose_gold(@tags[0].to_i)
      end
    end  
  end
end

#==============================================================================
# ** Scene_Skill
#------------------------------------------------------------------------------
#  Added removal of necessary skill components
#==============================================================================

class Scene_Skill < Scene_Base
  #--------------------------------------------------------------------------
  # * Alias Listings
  #--------------------------------------------------------------------------  
  alias use_skill_original use_skill_nontarget
  #--------------------------------------------------------------------------
  # * Includes The NOTES Module
  #--------------------------------------------------------------------------  
  include NOTES
  #--------------------------------------------------------------------------
  # * Use Skill (apply effects to non-ally targets)
  #--------------------------------------------------------------------------
  def use_skill_nontarget
    if has_tag?(@skill.note, '<skill>')
      @conditions = get_tag_area(@skill.note, '<skill>')
      if has_tag?(@conditions,'ITEM','USE')
        @tags = get_multiple_tag(@conditions,'ITEM','USE')
        for i in 0...@tags.size
          if @tags[i].is_a?(Array)
            $game_party.lose_item($data_items[@tags[i][0].to_i],@tags[i][1].to_i,true)
          else
            $game_party.lose_item($data_items[@tags[i].to_i],1,true)
          end
        end
      end
      if has_tag?(@conditions,'GOLD','USE')
        @tags = get_tag(@conditions,'GOLD','USE')
        $game_party.lose_gold(@tags[0].to_i)
      end  
      use_skill_original
    end
  end
end

#==============================================================================
# ** Window_EquipItem
#------------------------------------------------------------------------------
#  Added Check for Conditional Equipment
#==============================================================================

class Window_EquipItem < Window_Item
  #--------------------------------------------------------------------------
  # * Alias Listings
  #--------------------------------------------------------------------------  
  alias enable_original enable?
  #--------------------------------------------------------------------------
  # * Whether to display item in enabled state
  #--------------------------------------------------------------------------
  def enable?(item)
    return false unless @actor.equipment_can_use?(item)
    enable_original(item)
  end
end

#==============================================================================
# ** Scene_Map
#------------------------------------------------------------------------------
#  Added removal of Equipment when conditions don't apply anymore
#==============================================================================

class Scene_Map < Scene_Base
  #--------------------------------------------------------------------------
  # * Alias Listings
  #--------------------------------------------------------------------------  
  alias update_original update
  alias terminate_original terminate
  alias start_original start
  #--------------------------------------------------------------------------
  # * Start processing
  #--------------------------------------------------------------------------
  def start
    start_original
    @stay = MESSAGE_STAY
  end
  #--------------------------------------------------------------------------
  # * Termination Processing
  #--------------------------------------------------------------------------
  def terminate
    terminate_original
    @notify_window.dispose if @notify_window
  end
  #--------------------------------------------------------------------------
  # * Frame Update
  #--------------------------------------------------------------------------
  def update
    update_original
    if @notify_window
      @notify_window.update
      @stay -= 1
      if @stay <= 0
        @notify_window.opacity -= MESSAGE_SPEED
        @notify_window.contents_opacity -= MESSAGE_SPEED
      end
      if @notify_window.opacity == 0
        @notify_window.dispose
        @notify_window = nil
      end
    end
    if REMOVE_EQUIP
      update_equipment
    end
  end
  #--------------------------------------------------------------------------
  # * Update Equipment
  #--------------------------------------------------------------------------
  def update_equipment
    for actor in $game_party.members
      for i in 0...actor.equips.size
        unless actor.equipment_can_use?(actor.equips[i])
          if SHOW_MESSAGE
            unless @notify_window
              @notify_window = Window_Base.new(0, 0, 320, 80)
              w = @notify_window.width-32; h = @notify_window.height-32
              @notify_window.contents = Bitmap.new(w, h)
              @notify_window.x = (544 - @notify_window.width) / 2
              @notify_window.y = (416 - @notify_window.height) / 2
              @notify_window.z = 9998
              icon_index = actor.equips[i].icon_index
              if USE_ICON
                @notify_window.draw_icon(icon_index, 0, 4,true)
              end
              @notify_window.contents.draw_text(USE_ICON ? 24 : 0, 0, w, 24, sprintf(EQUIP_REMOVE, actor.equips[i].name), 0)
              @notify_window.contents.draw_text(0, 24, w, 24, sprintf(EQUIP_MESSAGE, actor.name), 2)
              @stay = MESSAGE_STAY
              actor.change_equip(i, nil)
            end
          end
        end
      end      
    end
  end
end

#==============================================================================
# ** Scene_Equip
#------------------------------------------------------------------------------
#  Edited to add 'equipment_can_use?' function
#==============================================================================

class Scene_Equip < Scene_Base
  #--------------------------------------------------------------------------
  # * Update Item Selection
  #--------------------------------------------------------------------------
  def update_item_selection
    if Input.trigger?(Input::B)
      Sound.play_cancel
      @equip_window.active = true
      @item_window.active = false
      @item_window.index = -1
    elsif Input.trigger?(Input::C)
      if @actor.equipment_can_use?(@item_window.item) # Added 'equipment_can_use?'
        Sound.play_equip
        @actor.change_equip(@equip_window.index, @item_window.item)
        @equip_window.active = true
        @item_window.active = false
        @item_window.index = -1
        @equip_window.refresh
        for item_window in @item_windows
          item_window.refresh
        end
      else
        Sound.play_buzzer
      end
    end
  end
end

#==============================================================================
# ** Window_Skill
#------------------------------------------------------------------------------
#  Edited to hide certain skills
#==============================================================================

class Window_Skill < Window_Selectable
  #--------------------------------------------------------------------------
  # * Refresh
  #--------------------------------------------------------------------------
  def refresh
    @data = []
    for skill in @actor.skills
      @data.push(skill) if @actor.show_skill?(skill) # Added 'If' statement
      if skill.id == @actor.last_skill_id
        self.index = @data.size - 1
      end
    end
    @item_max = @data.size
    create_contents
    for i in 0...@item_max
      draw_item(i)
    end
  end
end

What's weird is all of this guy's scripts have the ACTION.merge! in it.
#==================================================================================
#"Dash" Element Script

module N01
# Element used to define a skill as a Dash skill
DASH_ELEMENT = 30 # Default is 30, my Dash Element.

SHOW_SKILL_ANIM_DASH = true #When true, if a skill has the Dash element it will have the magic animation before the dash. When false, it is the same as the
#weapon dash animation.
# Action Sequence
DASH_ATTACK_ACTION = {
"DASH_ATTACK_SKILL" => ["START_MAGIC_ANIM","45","JUMP_TO_TARGET","JUMP_AWAY","JUMP_AWAY","JUMP_AWAY","DASH_ATTACK","16","OBJ_ANIM_WEIGHT",
"One Wpn Only","16","Can Collapse","COORD_RESET"],
"DASH_ATTACK" => ["JUMP_TO_TARGET","JUMP_AWAY","JUMP_AWAY","JUMP_AWAY","DASH_ATTACK","16","OBJ_ANIM_WEIGHT","One Wpn Only","16","Can Collapse","COORD_RESET"],}
 ACTION.merge(DASH_ATTACK_ACTION)
end

module RPG
class Skill
alias enelvon_dash_base_action base_action
def base_action
# If the Dash Element is checked on the skills tab in the database,
# the Dash attack action sequence is used.
if $data_skills[@id].element_set.include?(N01::DASH_ELEMENT) && N01::SHOW_SKILL_ANIM_DASH == true
return "DASH_ATTACK_SKILL"
elsif $data_skills[@id].element_set.include?(N01::DASH_ELEMENT) && N01::SHOW_SKILL_ANIM_DASH == false
return "DASH_ATTACK"
end
enelvon_dash_base_action
end
end
class Weapon
alias enelvon_dash_weapon_base_action base_action
def base_action
# If the Dash Element is checked on the weapons tab in the database,
# the Dash attack action sequence is used.
if $data_weapons[@id].element_set.include?(N01::DASH_ELEMENT)
return "DASH_ATTACK"
end
enelvon_dash_weapon_base_action
end
end
end