MSS Correct Sprite Display

#==============================================================================
#
# ▼ Moby's Script System - Correct Sprite Display V1.0
# -- Last Updated: 2012.06.26
#
#==============================================================================

$imported = {} if $imported.nil?
$imported["MSS-Correct_Sprite_Display"] = 1.0

#==============================================================================
# ▼ Updates
# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
# N/A
#
#==============================================================================
# ▼ Introduction
# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
# This script corrects how sprites will be displayed, to prevent errors
# happening when the sprite is higher than 32px and the tile above it is set
# to star passability.
#
#==============================================================================
# ▼ Instructions
# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
# To install this script, open up your script editor and copy/paste this script
# to an open slot below ▼ Materials/素材 but above ▼ Main. Remember to save.
#
#
# If you have any questions, bugs you want to report or anything else,
# please contact me at mobychan@gmx.de or via my profile on
# http://forums.rpgmakerweb.com (mobychan).
#
#
# This script is Plug and Play.
# It automatically checks if the Sprite is bigger then 32px and adjust the
# tiles around that sprite accordingly.
# If you're using Anaryu's Particle Engine (ported by Yami)
# there won't be any issues.
#
#==============================================================================
# ▼ Compatibility
# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
# This script is made strictly for RPG Maker VX Ace. It is highly unlikely that
# it will run with RPG Maker VX without adjusting.
#
#==============================================================================
#
#==============================================================================
# ▼ Compatibility Issues
# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
# N/A
#
#==============================================================================



#==============================================================================
# ** Spriteset_Map
#------------------------------------------------------------------------------
#  This class brings together map screen sprites, tilemaps, etc. It's used
# within the Scene_Map class.
#==============================================================================

class Spriteset_Map
  #--------------------------------------------------------------------------
  # * Update Character Sprite
  #--------------------------------------------------------------------------
  alias msscsd_update_characters update_characters unless $@
  def update_characters
    msscsd_update_characters

    @character_sprites.each do |curr_sprite|
      if curr_sprite.character.class.name == "Game_Event" ||
          curr_sprite.character.class.name == "Game_Player" ||
          curr_sprite.character.class.name == "Game_Follower"
        height = get_height(curr_sprite)

        if height > 1
          x = curr_sprite.character.x
          curr_sprite.viewport = @viewport1

          id = $game_map.data[x, curr_sprite.character.y, 2]
          flag_pos = $game_map.tileset.flags[id]

          if (!(flag_pos & 0x10 != 0) || id == 0)
            for i in 2..height
              y = curr_sprite.character.y - (i - 1)

              if !$game_map.data[x, y, 2].nil?
                flag = $game_map.tileset.flags[$game_map.data[x, y, 2]]

                if flag & 0x10 != 0 && # [☆]: No effect on passage
                    $game_map.data[x, y, 2] != 0
                  curr_sprite.viewport = @viewport2
                  break
                else
                  curr_sprite.viewport = @viewport1
                end
              end
            end
          end
        end
      end
    end
  end
  #--------------------------------------------------------------------------
  # * Gets the given Sprites height
  #--------------------------------------------------------------------------
  def get_height(curr_sprite)
    height = 0

    if curr_sprite.character.character_name.scan(/$/)
      height = (curr_sprite.bitmap.height / 4) / 32
      height += 1 if (curr_sprite.bitmap.height / 4) % 32 > 0
    else
      height = (curr_sprite.bitmap.height / 8) / 32
      height += 1 if (curr_sprite.bitmap.height / 8) % 32 > 0
    end
    return height
  end
  #--------------------------------------------------------------------------
  # * Add Particle
  #--------------------------------------------------------------------------
  def add_particle(target, name, blend, setting, offset, v = nil, a = nil)
        particle = Particle.new(@viewport2, target, name, blend, setting, offset, v, a)
        @particles.push(particle)
  end
end