[Ace] Scrolling Parallax Speed

scrolling_parallax_speed.rb

# Script that allows you to specify custom scroll speeds for parallax scrolling.
# Note-tag maps with:
#
#   <horz scroll: VALUE />
#   <vert scroll: VALUE />
#
# The VALUE is a number that determines how fast it scrolls.
#
# You can specify positive or negative numbers depending on whether you want it to scroll left or right.

module TH
  module Scrolling_Parallax_Speed
    Horz_Regex = /<horz[-_ ]scroll:\s*(.+?)\s*\/>/i
    Vert_Regex = /<vert[-_ ]scroll:\s*(.+?)\s*\/>/i
  end
end

module RPG
  class Map
    
    alias :th_scrolling_parallax_speed_parallax_sx :parallax_sx 
    def parallax_sx 
      parse_notetag_scrolling_parallax unless @scrolling_parallax_notetag_loaded
      th_scrolling_parallax_speed_parallax_sx
    end
    
    alias :th_scrolling_parallax_speed_parallax_sy :parallax_sy
    def parallax_sy
      parse_notetag_scrolling_parallax unless @scrolling_parallax_notetag_loaded
      th_scrolling_parallax_speed_parallax_sy
    end
    
    def parse_notetag_scrolling_parallax
      res = self.note.match(TH::Scrolling_Parallax_Speed::Horz_Regex)
      if res
        @parallax_sx = res[1].to_i
      end
      
      res = self.note.match(TH::Scrolling_Parallax_Speed::Vert_Regex)
      if res
        @parallax_sy = res[1].to_i
      end
    end
  end
end