[RGSS] Blizz ABS Hit & Damage Sprite

#:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=
# Blizz ABS Damage Sprite
# Version: 2.00
# Author : LiTTleDRAgo
#:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=
#
# Explanation :
#
# This script will change your character graphic while get damaged / healed
#
# Graphic required :
# {Actor.name}_hit (ex : Aluxes_hit)
# {Actor.name}_heal (ex : Aluxes_heal)
#
# Set any to nil if you don't want it
#
#:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=

class Map_Battler

  ANIDamage = 14                 # ID of the animation when character damaged
  ANIHeal   = 22                 # ID of the animation when character healed
  SPRDamage = '_hit'             # Sprite when character damaged
  SPRHeal   = '_heal'            # Sprite when character healed

  alias sprite_animation_setup_hit_sprite sprite_animation_setup
  def sprite_animation_setup(*args)
    if @battler && (dif = @battler.hp - (@old_hp_ny ||= @battler.hp)) != 0
      ani = dif > 0 ? ANIHeal : dif < 0 ? ANIDamage : nil
      spr = dif > 0 ? SPRHeal : dif < 0 ? SPRDamage : nil
      ani && @animation_id = ani
      spr && setup_sprites_ex(spr, [6,6,6,6])
      return @old_hp_ny = @battler.hp
    elsif @character_name_org != '' &&
      (@current_sprite == SPRHeal || @current_sprite == SPRDamage)
      @sframes[@sindex] -= 1
      @sindex += 1 if @sframes[@sindex] <= 0
      if @sindex >= @sframes.size
        (@sindex = 0) && reset_sprites
      else
        @character_name = @character_name_org + @current_sprite
      end
      return
    end
    sprite_animation_setup_hit_sprite(*args)
  end

  def setup_sprites_ex(type, frames = BlizzABS::Cache::FramesDefault)
    return if check_char_exist(@character_name_org + type) == 'false'
    @character_name = @character_name_org + (@current_sprite = type)
    setup_frames(frames.clone)
  end

  def check_char_exist(n)
    return (@sprexist||={})[n] ||= RPG::Cache.character(n,0).to_s rescue 'false'
  end
end