Character Graphic Extension

#==============================================================================
# ■ Character Graphic Extension
#------------------------------------------------------------------------------
# 　Rotate a character image and adjust the display coordinates in pixels.
#
# ●How to use
# 1. Use "Script" from "Set Move Route..." and put-
#    self.rotate(90, 0, 0) -> rotate 90 degrees clockwise
# 2. Rotation is used ot the origin, adjusts X and Y coordinates
#    self.rotate(90, 16, -16) -> rotate 90 degrees clockwise
#    X coordinate move 16 to the right and the Y coordinate 16 upward.
#
# ●Terms of use
#  It can be modified and redistributed without permission from the author.
#  Free for commercial and non-commercial use.
#-----------------------------------------------------------------------------
# Copyright (c) 2016 Triacontane
# This software is released under the MIT License.
# http://opensource.org/licenses/mit-license.php
#-----------------------------------------------------------------------------
# Version
# 1.0.1 2016/05/05 Fixed an error when loading save data without using a script.
# 1.0.0 2016/05/04 Initial release
# ----------------------------------------------------------------------------
# [Blog]   : http://triacontane.blogspot.jp/
# [Twitter]: https://twitter.com/triacontane/
# [GitHub] : https://github.com/triacontane/
#=============================================================================

class Game_CharacterBase
  #--------------------------------------------------------------------------
  # ● Public instance variables
  #--------------------------------------------------------------------------
  attr_accessor :angle                       # Rotation angle
  attr_accessor :adjustment_x                # X coordinate adjuster
  attr_accessor :adjustment_y                # Y coordinate adjuster
  #--------------------------------------------------------------------------
  # ● Initializing public member variables
  #--------------------------------------------------------------------------
  alias cge_init_public_members init_public_members
  def init_public_members
    cge_init_public_members
    @angle = 0
    @adjustment_x = 0
    @adjustment_y = 0
  end
  #--------------------------------------------------------------------------
  # ● Get the screen X coordinate
  #--------------------------------------------------------------------------
  alias cge_screen_x screen_x
  def screen_x
    cge_screen_x + (@adjustment_x ? @adjustment_x : 0)
  end
  #--------------------------------------------------------------------------
  # ● Get the screen Y coordinate
  #--------------------------------------------------------------------------
  alias cge_screen_y screen_y
  def screen_y
    cge_screen_y + (@adjustment_y ? @adjustment_y : 0)
  end
  #--------------------------------------------------------------------------
  # ● Rotation
  #--------------------------------------------------------------------------
  def rotate(angle, adjustment_x, adjustment_y)
    @angle = angle
    @adjustment_x = adjustment_x
    @adjustment_y = adjustment_y
  end
end

class Sprite_Character
  #--------------------------------------------------------------------------
  # ● Other updates
  #--------------------------------------------------------------------------
  alias cge_update_other update_other
  def update_other
    cge_update_other
    self.angle = (@character.angle ? @character.angle : 0)
  end
end