if true # << Make true to use this script, false to disable.
#===============================================================================
#
# ☆ $D13x - Simple Antilag
# -- Author   : Dekita
# -- Version  : 1.0
# -- Level    : Easy / Normal
# -- Requires : N/A
# -- Engine   : RPG Maker VX Ace.
#
#===============================================================================
# ☆ Import
#-------------------------------------------------------------------------------
$D13x={}if$D13x==nil
$D13x[:Antilag]=true
#===============================================================================
# ☆ Updates
#-------------------------------------------------------------------------------
# D /M /Y
# 29/o3/2o13 - Started, Finished,
#
#===============================================================================
# ☆ Introduction
#-------------------------------------------------------------------------------
# This simple script slightly reduces lag caused by events.
# It also stops animations from causing lag spikes when being played.
#
#===============================================================================
# ★☆★☆★☆★☆★☆★☆★☆★ TERMS AND CONDITIONS: ☆★☆★☆★☆★☆★☆★☆★☆★☆
#===============================================================================
# 1. You MUST give credit to "Dekita" !!
# 2. You are NOT allowed to repost this script.(or modified versions)
# 3. You are NOT allowed to convert this script.
# 4. You are NOT allowed to use this script for Commercial games.
# 5. ENJOY!
#
# "FINE PRINT"
# By using this script you hereby agree to the above terms and conditions,
#  if any violation of the above terms occurs "legal action" may be taken.
# Not understanding the above terms and conditions does NOT mean that
#  they do not apply to you.
# If you wish to discuss the terms and conditions in further detail you can
# contact me at http://dekitarpg.wordpress.com/
#
#===============================================================================
# ☆ Instructions
#-------------------------------------------------------------------------------
# Place Below " ▼ Materials " and Above " ▼ Main " in your script editor.
#
#===============================================================================
# ☆ Script Calls
#-------------------------------------------------------------------------------
# $game_system.anti_lag = Boolean
# ^- Event anti Lag
#
# $game_system.anti_lag_ani = Boolean
# ^- Animation anti Lag
#
#===============================================================================
# ☆ Notetags ( default )
#-------------------------------------------------------------------------------
# N/A
#
#===============================================================================
# ☆ HELP
#-------------------------------------------------------------------------------
# N/A
#
#===============================================================================
module Anti_Lag
#===============================================================================
  #-----------------------------------------------------------------------------
  # Out Of Screen Update Range
  #-----------------------------------------------------------------------------
  Event_Update_Range = 3
  #-----------------------------------------------------------------------------
  # Event Antilag
  #-----------------------------------------------------------------------------
  Event_Anti_Lag_On  = true
  #-----------------------------------------------------------------------------
  # Animation Antilag
  #-----------------------------------------------------------------------------
  Anima_Anti_lag_On  = true
                            #####################
                            # CUSTOMISATION END #
end                         #####################
#☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★#
#                                                                               #
#                       http://dekitarpg.wordpress.com/                         #
#                                                                               #
#★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆#
#===============================================================================#
# ARE YOU MODIFYING BEYOND THIS POINT? \.\.                                     #
# YES?\.\.                                                                      #
# OMG, REALLY? \|                                                               #
# WELL SLAP MY FACE AND CALL ME A DRAGONITE.\..\..                              #
# I REALLY DIDN'T THINK YOU HAD IT IN YOU.\..\..                                #
#===============================================================================#
module SceneManager
#===============================================================================
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  class << self
    alias :call_antilag  :call
    alias :goto_antilag  :goto
  end
  #-----------------------------------------------------------------------------
  # Call Scene
  #-----------------------------------------------------------------------------
  def self.call(scene_class)
    call_antilag(scene_class)
    dispose_ani_crap
  end
  #-----------------------------------------------------------------------------
  # Goto Scene
  #-----------------------------------------------------------------------------
  def self.goto(scene_class)
    goto_antilag(scene_class)
    dispose_ani_crap
  end
  #-----------------------------------------------------------------------------
  # Dispose Ani Crap
  #-----------------------------------------------------------------------------
  def self.dispose_ani_crap
    return if $game_temp.ani_crap == nil
    $game_temp.ani_crap.each do |ani|
      ani.dispose
    end
    $game_temp.ani_crap = nil
  end
end
#===============================================================================
class Game_Temp
#===============================================================================
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  alias :init_abs_antilag :initialize
  #-----------------------------------------------------------------------------
  # Pi Variables
  #-----------------------------------------------------------------------------
  attr_accessor :ani_crap
  #-----------------------------------------------------------------------------
  # Initialize
  #-----------------------------------------------------------------------------
  def initialize
    @ani_crap = []
    init_abs_antilag
  end
end
#===============================================================================
class Game_System
#===============================================================================
  #-----------------------------------------------------------------------------
  # Pi Variables
  #-----------------------------------------------------------------------------
  attr_accessor :anti_lag
  attr_accessor :anti_lag_ani
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  alias :initantilag :initialize
  #-----------------------------------------------------------------------------
  # Initialize
  #-----------------------------------------------------------------------------
  def initialize
    @anti_lag     = Anti_Lag::Event_Anti_Lag_On
    @anti_lag_ani = Anti_Lag::Anima_Anti_lag_On
    initantilag
  end
end
#===============================================================================
class Game_Map
#===============================================================================
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  alias :setup_de_antilag :setup
  #-----------------------------------------------------------------------------
  # Setup
  #-----------------------------------------------------------------------------
  def setup(map_id)
    SceneManager.dispose_ani_crap
    setup_de_antilag(map_id)
  end
end
#===============================================================================
class Game_Event < Game_Character
#===============================================================================
  #-----------------------------------------------------------------------------
  # Pi Variables
  #-----------------------------------------------------------------------------
  attr_reader :can_update
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  alias :anti_lag_init_GE :initialize
  alias :updt_anti_lag    :update
  #-----------------------------------------------------------------------------
  # Initialize
  #-----------------------------------------------------------------------------
  def initialize(map_id, event)
    @can_anti_lag = $game_system.anti_lag
    @can_update = true
    if $game_map.loop_horizontal? or $game_map.loop_vertical?
      @can_anti_lag = false
    end
    anti_lag_init_GE(map_id, event)
  end
  #-----------------------------------------------------------------------------
  # Update
  #-----------------------------------------------------------------------------
  def update
    update_anti_lag
    return unless @can_update
    updt_anti_lag
  end
  #-----------------------------------------------------------------------------
  # Update Anti Lag
  #-----------------------------------------------------------------------------
  def update_anti_lag
    if @can_anti_lag != $game_system.anti_lag
      @can_anti_lag = $game_system.anti_lag
      if $game_map.loop_horizontal? or $game_map.loop_vertical?
        @can_anti_lag = false
      end
    end
    event_is_on_screen?
  end
  #-----------------------------------------------------------------------------
  # Event Is On Screen ?
  #-----------------------------------------------------------------------------
  def event_is_on_screen?
    return unless @can_anti_lag
    w = Graphics.width / 32
    h = Graphics.height / 32
    @can_update = false
    os = Anti_Lag::Event_Update_Range
    px = ($game_map.display_x).truncate
    py = ($game_map.display_y).truncate
    dx = @x - px
    dy = @y - py
    if dx.between?(0-os,w+os) && dy.between?(0-os,h+os)
      @can_update = true
    end
  end
end
#===============================================================================
class Sprite_Base < Sprite
#===============================================================================
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  alias :dispose_antilagani :dispose_animation
  #-----------------------------------------------------------------------------
  # Dispose Animation
  #-----------------------------------------------------------------------------
  def dispose_animation
    if $game_system.anti_lag_ani
      make_ani_into_crap
      return
    end
    dispose_antilagani
  end
  #-----------------------------------------------------------------------------
  # Make Animation Garbage
  #-----------------------------------------------------------------------------
  def make_ani_into_crap
    $game_temp.ani_crap = [] if $game_temp.ani_crap == nil
    if @ani_bitmap1
      @@_reference_count[@ani_bitmap1] -= 1
      if @@_reference_count[@ani_bitmap1] == 0
        $game_temp.ani_crap << @ani_bitmap1
      end
    end
    if @ani_bitmap2
      @@_reference_count[@ani_bitmap2] -= 1
      if @@_reference_count[@ani_bitmap2] == 0
        $game_temp.ani_crap << @ani_bitmap2
      end
    end
    if @ani_sprites
      @ani_sprites.each {|sprite| sprite.dispose }
      @ani_sprites = nil
      @animation = nil
    end
    @ani_bitmap1 = nil
    @ani_bitmap2 = nil
  end
end
#===============================================================================
class Sprite_Character < Sprite_Base
#===============================================================================
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  alias :anti_lag_update :update
  #-----------------------------------------------------------------------------
  # Update
  #-----------------------------------------------------------------------------
  def update
    if $game_system.anti_lag and @character.is_a?(Game_Event)
      check_can_update_sprite
      return unless self.visible
    end
    anti_lag_update
  end
  #-----------------------------------------------------------------------------
  # Update
  #-----------------------------------------------------------------------------
  def check_can_update_sprite
    if self.visible and !@character.can_update
      reset_sprite_animation
    end
    self.visible = @character.can_update
  end
  #-----------------------------------------------------------------------------
  # Reset Sprite Animation
  #-----------------------------------------------------------------------------
  def reset_sprite_animation
    dispose_animation
  end
end
#===============================================================================
class Scene_Base
#===============================================================================
  #-----------------------------------------------------------------------------
  # Alias List
  #-----------------------------------------------------------------------------
  alias :term_antilag :terminate
  #-----------------------------------------------------------------------------
  # Terminate
  #-----------------------------------------------------------------------------
  def terminate
    term_antilag
    SceneManager.dispose_ani_crap
  end
end
#==============================================================================#
#                      http://dekitarpg.wordpress.com/                         #
#==============================================================================#
end  # if true # << Make true to use this script, false to disable.