[Game Discussion] What's up, RMers?

Part1 - The mostly Custom Code

Code:
module AntiLag

  # The dimensions of you game window, useful if a resolution script in use

  TILES_HORIZONTAL = 20

  TILES_VERTICAL   = 15

  # How far out (in tiles) beyond the viewport to permit activity

  BUFFER_SIZE = 2

end

#==============================================================================

# ** Game_Map

#------------------------------------------------------------------------------

#  This class handles the map. It includes scrolling and passable determining

#  functions. Refer to "$game_map" for the instance of this class.

#==============================================================================

class Game_Map

  #--------------------------------------------------------------------------

  # * Gets the minimmum and maximum x/y map coordinates for updating events

  #--------------------------------------------------------------------------  

  def get_antilag_tile_area

    #

    # Gets the upper left x and y tile-coordinate

    x = $game_map.display_x / 128

    y = $game_map.display_y / 128

    #

    # Get configurable buffer and ensure it isn't negative or invalid

    al_buffer_size = AntiLag::BUFFER_SIZE

    al_buffer_size = 0 if al_buffer_size.nil?

    al_buffer_size = 0 if !al_buffer_size.is_a?(Integer)

    al_buffer_size = 0 if al_buffer_size < 0

    #

    # Computes the min and max coordinates when considering the buffer-size

    min_x = x - al_buffer_size

    min_y = y - al_buffer_size

    max_x = x + AntiLag::TILES_HORIZONTAL + al_buffer_size

    max_y = y + AntiLag::TILES_VERTICAL   + al_buffer_size

    #

    # Makes sure the min and max coordinates are within the map

    min_x = 0 if min_x < 0

    min_y = 0 if min_y < 0

    max_x = $game_map.width  - 1  if max_x >= $game_map.width

    max_y = $game_map.height - 1  if max_y >= $game_map.height

    #

    # Returns the result as the min and max coordinates

    return min_x, max_x, min_y, max_y

    #

  end

  #--------------------------------------------------------------------------

  # * Update the antilag tile coordinates for tile area testing

  #--------------------------------------------------------------------------  

  def update_antilag_tile_area

    #

    # Don't bother updating if the player hasn't even moved

    return unless antilag_player_moved?

    #

    # Since the player HAS moved, update the new antilag coordinates

    @al_min_x, @al_max_x, @al_min_y, @al_max_y =  get_antilag_tile_area

    #

  end

  #--------------------------------------------------------------------------

  # * Determine if an object is in the viable viewport

  #--------------------------------------------------------------------------  

  def antilag_tile_area?(object)

    #

    # Exit false if the player is not within the x/y boundaries

    return false if object.x < @al_min_x || object.x > @al_max_x

    return false if object.y < @al_min_y || object.y > @al_max_y    

    #

    # Exit true if the player is within the area

    return true

    #

  end

  #--------------------------------------------------------------------------

  # * Determine if the player moved enough to require updating the tile area

  #--------------------------------------------------------------------------  

  def antilag_player_moved?

    #

    # If the player moved even a single tile, let alone to a new map

    if @antilag_old_x   != $game_player.x || 

        @antilag_old_y  != $game_player.y ||

        @antilag_old_id != $game_map.map_id

      # Update the player's current coordinates

      @antilag_old_x  = $game_player.x

      @antilag_old_y  = $game_player.y

      @antilag_old_id = $game_map.map_id

      # And exit true that the player moved

      return true

    end

    #

    # Exit false if there's no change

    return false

    #

  end  

end

Part2 - Mainly Game_Map's update edited

Code:
#==============================================================================

# ** Game_Map

#------------------------------------------------------------------------------

#  This class handles the map. It includes scrolling and passable determining

#  functions. Refer to "$game_map" for the instance of this class.

#==============================================================================

class Game_Map

  #--------------------------------------------------------------------------

  # * Frame Update

  #--------------------------------------------------------------------------

  def update

    # Refresh map if necessary

    if $game_map.need_refresh

      refresh

    end

    # If scrolling

    if @scroll_rest > 0

      # Change from scroll speed to distance in map coordinates

      distance = 2 ** @scroll_speed

      # Execute scrolling

      case @scroll_direction

      when 2  # Down

        scroll_down(distance)

      when 4  # Left

        scroll_left(distance)

      when 6  # Right

        scroll_right(distance)

      when 8  # Up

        scroll_up(distance)

      end

      # Subtract distance scrolled

      @scroll_rest -= distance

    end

    #------------------------------------------------------------------------

    # >> EDITED AREA (contents below)<<

    update_events                       # Update all map events

    #------------------------------------------------------------------------

    # Update common event

    for common_event in @common_events.values

      common_event.update

    end

    # Manage fog scrolling

    @fog_ox -= @fog_sx / 8.0

    @fog_oy -= @fog_sy / 8.0

    # Manage change in fog color tone

    if @fog_tone_duration >= 1

      d = @fog_tone_duration

      target = @fog_tone_target

      @fog_tone.red = (@fog_tone.red * (d - 1) + target.red) / d

      @fog_tone.green = (@fog_tone.green * (d - 1) + target.green) / d

      @fog_tone.blue = (@fog_tone.blue * (d - 1) + target.blue) / d

      @fog_tone.gray = (@fog_tone.gray * (d - 1) + target.gray) / d

      @fog_tone_duration -= 1

    end

    # Manage change in fog opacity level

    if @fog_opacity_duration >= 1

      d = @fog_opacity_duration

      @fog_opacity = (@fog_opacity * (d - 1) + @fog_opacity_target) / d

      @fog_opacity_duration -= 1

    end

  end

  #--------------------------------------------------------------------------

  # * Frame Update (when handling map events)           an SDK derived method

  #--------------------------------------------------------------------------

  def update_events

    #

    update_antilag_tile_area                # Update tile area coords if needed

    for event in @events.values             # Cycle through all events

      next unless antilag_tile_area?(event) # Skip if not in the viewport

      event.update                          # Update the event

    end    

  end

end

Part 3 - Mainly Spriteset_Map's update edited

Code:
#==============================================================================

# ** Spriteset_Map

#------------------------------------------------------------------------------

#  This class brings together map screen sprites, tilemaps, etc.

#  It's used within the Scene_Map class.

#==============================================================================

class Spriteset_Map

  #--------------------------------------------------------------------------

  # * Frame Update

  #--------------------------------------------------------------------------

  def update

    # If panorama is different from current one

    if @panorama_name != $game_map.panorama_name or

       @panorama_hue != $game_map.panorama_hue

      @panorama_name = $game_map.panorama_name

      @panorama_hue = $game_map.panorama_hue

      if @panorama.bitmap != nil

        @panorama.bitmap.dispose

        @panorama.bitmap = nil

      end

      if @panorama_name != ""

        @panorama.bitmap = RPG::Cache.panorama(@panorama_name, @panorama_hue)

      end

      Graphics.frame_reset

    end

    # If fog is different than current fog

    if @fog_name != $game_map.fog_name or @fog_hue != $game_map.fog_hue

      @fog_name = $game_map.fog_name

      @fog_hue = $game_map.fog_hue

      if @fog.bitmap != nil

        @fog.bitmap.dispose

        @fog.bitmap = nil

      end

      if @fog_name != ""

        @fog.bitmap = RPG::Cache.fog(@fog_name, @fog_hue)

      end

      Graphics.frame_reset

    end

    # Update tilemap

    @tilemap.ox = $game_map.display_x / 4

    @tilemap.oy = $game_map.display_y / 4

    @tilemap.update

    # Update panorama plane

    @panorama.ox = $game_map.display_x / 8

    @panorama.oy = $game_map.display_y / 8

    # Update fog plane

    @fog.zoom_x = $game_map.fog_zoom / 100.0

    @fog.zoom_y = $game_map.fog_zoom / 100.0

    @fog.opacity = $game_map.fog_opacity

    @fog.blend_type = $game_map.fog_blend_type

    @fog.ox = $game_map.display_x / 4 + $game_map.fog_ox

    @fog.oy = $game_map.display_y / 4 + $game_map.fog_oy

    @fog.tone = $game_map.fog_tone

    #------------------------------------------------------------------------

    # >> EDITED AREA (contents below)<<

    update_sprites                      # Update all character sprites

    #------------------------------------------------------------------------

    # Update weather graphic

    @weather.type = $game_screen.weather_type

    @weather.max = $game_screen.weather_max

    @weather.ox = $game_map.display_x / 4

    @weather.oy = $game_map.display_y / 4

    @weather.update

    # Update picture sprites

    for sprite in @picture_sprites

      sprite.update

    end

    # Update timer sprite

    @timer_sprite.update

    # Set screen color tone and shake position

    @viewport1.tone = $game_screen.tone

    @viewport1.ox = $game_screen.shake

    # Set screen flash color

    @viewport3.color = $game_screen.flash_color

    # Update viewports

    @viewport1.update

    @viewport3.update

  end

  #--------------------------------------------------------------------------

  # * Frame Update (when handling map sprites)          an SDK derived method

  #--------------------------------------------------------------------------

  def update_sprites

    #

    # Cycle through all character sprites

    for sprite in @character_sprites

      # Skip if the sprite is not in the viewport ares

      next unless $game_map.antilag_tile_area?(sprite.character)

      # Update the sprite

      sprite.update

    end    

    #

  end 

end