Event Amplifier v1.01

# // Event Amplifier


# // Regular Expressions (In Event Comment)
# <bool: *>  : Adds a script condition to event page.
# <x/y += *> : Offsets X/Y coordinate of event.

# // Added Features
# self_var   : Variable Local to Event (Like Self Switch)

module Z21

  module REGEXP
    BOOL = /<(?:bool|condition)[ :]*(.*)>/i
    OFFSET = /<([xy])[ :]*(.*)>/i
  end
end

class Game_Event

  alias z21conditions_met? conditions_met? unless $@
  def conditions_met?(page)
    return false unless z21regexp_conditions_met?(page)
    return z21conditions_met?(page)
  end

  def z21regexp_conditions_met?(page)
    for line in page.list
      next unless line.code == 108
      line.parameters[0].scan(Z21::REGEXP::BOOL){|condition|
        return false unless eval(condition[0])
      }
    end
    return true
  end

end

class Game_Interpreter
  def event
    return $game_map.events[@event_id]
  end
  def self_var
    return event.self_var
  end
end

class Game_Event

  def self_var
    return $self_var[@event.id, @map.map_id]
  end

  def self_var=(new_value)
    $self_var[@event.id, @map.map_id] = new_value
  end

end

class Game_SelfVariables

  def initialize
    @data = {}
  end

  def [](key)
    return @data[key].nil? ? 0 : @data[key]
  end

  def []=(key, value)
    @data[key] = value
  end

end

class Scene_Title < Scene_Base

  alias z21create_game_objects create_game_objects unless $@
  def create_game_objects
    z21create_game_objects
    $self_var = Game_SelfVariables.new
  end

end

class Scene_File < Scene_Base

  alias z21write_save_data write_save_data unless $@
  def write_save_data(file)
    z21write_save_data(file)
    Marshal.dump($game_player,         file)
  end

  alias z21read_save_data read_save_data
  def read_save_data(file)
    z21read_save_data(file)
    $self_var = Marshal.load(file)
  end

end

class Game_Character

  alias z21screen_x screen_x unless $@
  def screen_x
    return z21screen_x + z21_offset_x
  end

  alias z21screen_y screen_y unless $@
  def screen_y
    return z21screen_y + z21_offset_y
  end

  def z21_offset_x
    return 0 unless self.is_a?(Game_Event)
    return z21_offset[0]
  end

  def z21_offset_y
    return 0 unless self.is_a?(Game_Event)
    return z21_offset[1]
  end

  def z21_offset
    param = [0, 0]
    return param if @page.nil?
    for line in @page.list
      next unless line.code == 108
      line.parameters[0].scan(Z21::REGEXP::OFFSET){|matches|
        for match in matches
          case $1.upcase
          when "X"
            param[0] += $2.to_i
          when "Y"
            param[1] += $2.to_i
          end
        end
      }
    end
    return param
  end

end