Interrupt Event

#=======================================================
# http://thiagodd.blogspot.com.br
#
# [TSDA] Interrupt Event
#   --> Version 1.0
# by thiago_d_d
#=======================================================
# * Features
#=======================================================
# With this script, the player can interrupt some events
# by simply pressing an directional key, so it will not
# need to wait ofr sign messages for example.
#=======================================================
# * How to use
#=======================================================
# Put the event that can be be interrupted as PlacaDirection
# Direction can be: 2 for down, 4 for left, 6 for right,
# 8 for up.
# Example:
# Placa8 - with this, the event will be interrupted if
# the player presses up.
#=======================================================
class Interpreter
  attr_reader    :event_id
end
#-------------------------------------------------------
class Game_Event
  def name
    return @event.name
  end
end
#-------------------------------------------------------
class Game_Player
  attr_reader    :direction
  alias sign_th_check_event_trigger_here check_event_trigger_here
  def check_event_trigger_here(triggers)
    result = false
    if $game_system.map_interpreter.running?
      return result
    end
    for i in $game_map.events.values
      if is_sign?(i)
        dir = sign_dir(i)
        x = i.x
        y = i.y
        dir2 = 0
        case dir
        when 2
          y += 1
          dir2 = 8
        when 4
          x -= 1
          dir2 = 6
        when 6
          x += 1
          dir2 = 4
        when 8
          y -= 1
          dir2 = 2
        end
        if @x == x && @y == y && @direction == dir2
          if not i.jumping?
            i.start
            result = true
          end
        end
      end
    end
    if result == true
      return result
    end
    sign_th_check_event_trigger_here(triggers)
  end
end
#-------------------------------------------------------
class Scene_Map
  alias sign_th_update update
  def update
    if (!$game_player.moving? &&
      $game_system.map_interpreter.event_id > 0 &&
      $game_system.map_interpreter.running?)
      event_id = $game_system.map_interpreter.event_id
      event = $game_map.events[event_id]
      if is_sign?(event)
        ar = [2,4,6,8]
        ar2 = ["down","left","right","up"]
        index = ar.index($game_player.direction)
        ar.delete_at(index)
        ar2.delete_at(index)
        case Input.dir4
        when ar[0]
          eval("$game_player.move_" + ar2[0])
          sign_end
        when ar[1]
          eval("$game_player.move_" + ar2[1])
          sign_end
        when ar[2]
          eval("$game_player.move_" + ar2[2])
          sign_end
        end
      end
    end
    sign_th_update
  end
  #-----------------------------------------------------
  def sign_end
    $game_system.map_interpreter.command_end
    @message_window.terminate_message
  end
  #-----------------------------------------------------
end
def is_sign?(event)
  name = event.name.clone
  if (/Placa\d/) === name
    return true
  else
    return false
  end
end
#-----------------------------------------------------
def sign_dir(event)
  if is_sign?(event)
    name = event.name.clone
    name.gsub!(/Placa/,"")
    dir = name.to_i
    return dir
  else
    return 0
  end
end