Quasi Random Animation Size

#==============================================================================
#** Quasi Animation Random +- Size
#==============================================================================

module Quasi
  # Change this value to set the amount to + or - it's animation size
  # Default is set in a range (-20..20) if you are to change the values
  # in a range, make sure the smaller number is on the left, and larger on the
  # right Ex: -100..-99 NOT -99..-100
  # You can set this as an interger, such as only -20- this would result in the
  # same as 0..20
  # Positive values make the animation larger, while negative make it smaller.
  ANI_ZOOM = -20..20

  # Add the ID of animations you do not want this effect to happen to, in this
  # array.  Example array:
  # ANI_FIXED = [1, 5, 10]
  # Would result in animations 1, 5 and 10 to always have the same size
  ANI_FIXED = []
end
#==============================================================================#
# By Quasi (http://quasixi.wordpress.com/)
#  - 8/23/14
#==============================================================================#
#   ** Stop! Do not edit anything below, unless you know what you      **
#   ** are doing!                                                      **
#==============================================================================#
#==============================================================================
# ** Sprite_Base
#------------------------------------------------------------------------------
#  A sprite class with animation display processing added.
#==============================================================================

class Sprite_Base < Sprite
  alias quasi_start_animation start_animation
  alias quasi_animation_set animation_set_sprites
  #--------------------------------------------------------------------------
  # * Start Animation
  #--------------------------------------------------------------------------
  def start_animation(animation, mirror = false)
    quasi_start_animation(animation, mirror)
    if @animation
      @rand = Random.new.rand(Quasi::ANI_ZOOM)
    end
  end
  #--------------------------------------------------------------------------
  # * Set Animation Sprite
  #     frame : Frame data (RPG::Animation::Frame)
  #--------------------------------------------------------------------------
  def animation_set_sprites(frame)
    quasi_animation_set(frame)
    return if Quasi::ANI_FIXED.include?(@animation.id)
    cell_data = frame.cell_data
    @ani_sprites.each_with_index do |sprite, i|
      next unless sprite
      pattern = cell_data[i, 0]
      next if !pattern || pattern < 0
      sprite.zoom_x += @rand/100.0
      sprite.zoom_y += @rand/100.0
    end
  end
end