#==============================================================================
# ** Cache
#------------------------------------------------------------------------------
#  This module loads each of graphics, creates a Bitmap object, and retains it.
# To speed up load times and conserve memory, this module holds the created
# Bitmap object in the internal hash, allowing the program to return
# preexisting objects when the same bitmap is requested again.
#==============================================================================

module Cache
  #--------------------------------------------------------------------------
  # * Get Animation Graphic
  #     filename : Filename
  #     hue      : Hue change value
  #--------------------------------------------------------------------------
  def self.animation(filename, hue)
    load_bitmap("Graphics/Animations/", filename, hue)
  end
  #--------------------------------------------------------------------------
  # * Get Battler Graphic
  #     filename : Filename
  #     hue      : Hue change value
  #--------------------------------------------------------------------------
  def self.battler(filename, hue)
    load_bitmap("Graphics/Battlers/", filename, hue)
  end
  #--------------------------------------------------------------------------
  # * Get Character Graphic
  #     filename : Filename
  #--------------------------------------------------------------------------
  def self.character(filename)
    load_bitmap("Graphics/Characters/", filename)
  end
  #--------------------------------------------------------------------------
  # * Get Face Graphic
  #     filename : Filename
  #--------------------------------------------------------------------------
  def self.face(filename)
    load_bitmap("Graphics/Faces/", filename)
  end
  #--------------------------------------------------------------------------
  # * Get Parallax Background Graphic
  #     filename : Filename
  #--------------------------------------------------------------------------
  def self.parallax(filename)
    load_bitmap("Graphics/Parallaxes/", filename)
  end
  #--------------------------------------------------------------------------
  # * Get Picture Graphic
  #     filename : Filename
  #--------------------------------------------------------------------------
  def self.picture(filename)
    load_bitmap("Graphics/Pictures/", filename)
  end
  #--------------------------------------------------------------------------
  # * Get System Graphic
  #     filename : Filename
  #--------------------------------------------------------------------------
  def self.system(filename)
    load_bitmap("Graphics/System/", filename)
  end
  #--------------------------------------------------------------------------
  # * Clear Cache
  #--------------------------------------------------------------------------
  def self.clear
    @cache = {} if @cache == nil
    @cache.clear
    GC.start
  end
  #--------------------------------------------------------------------------
  # * Load Bitmap
  #--------------------------------------------------------------------------
  def self.load_bitmap(folder_name, filename, hue = 0)
    @cache = {} if @cache == nil
    path = folder_name + filename
    if not @cache.include?(path) or @cache[path].disposed?
      if filename.empty?
        @cache[path] = Bitmap.new(32, 32)
      else
        @cache[path] = Bitmap.new(path)
      end
    end
    if hue == 0
      return @cache[path]
    else
      key = [path, hue]
      if not @cache.include?(key) or @cache[key].disposed?
        @cache[key] = @cache[path].clone
        @cache[key].hue_change(hue)
      end
      return @cache[key]
    end
  end
end

#==============================================================================
# ? VX-RGSS2-7 Change Battle Background [Ver.1.0.0]     by Claimh
#------------------------------------------------------------------------------
# English Translation By: Elemental Crisis [http://rpgcrisis.net]
#------------------------------------------------------------------------------
# Changes the battle background.
#==============================================================================


module BattleBack
  #   Select Battle Background Type
  #   0:Current map with wave effect for battle background (Default VX Style).
  #   1:Current map used as battle background.
  #   2:Uses a picture for battle background.
  BB_TYPE = 2
  
  # Display Battle Floor
  BT_FLOOR = false

  # Picture (Only required if BB_TYPE = 2)
  M_B_BACK = {
    # All picture files must be in the Graphics/System folder.
    # Map ID => "Picture File Name"
    1 => "plains"
  }
end


#==============================================================================
# ? Spriteset_Battle
#==============================================================================
class Spriteset_Battle
  #--------------------------------------------------------------------------
  # ? Creating Battle Back Sprite
  #--------------------------------------------------------------------------
  def create_battleback
    case BattleBack::BB_TYPE
    when 0
      source = $game_temp.background_bitmap
      bitmap = Bitmap.new(640, 480)
      bitmap.stretch_blt(bitmap.rect, source, source.rect)
      bitmap.radial_blur(90, 12)
      @battleback_sprite = Sprite.new(@viewport1)
      @battleback_sprite.bitmap = bitmap
      @battleback_sprite.ox = 320
      @battleback_sprite.oy = 240
      @battleback_sprite.x = 272
      @battleback_sprite.y = 176
      @battleback_sprite.wave_amp = 8
      @battleback_sprite.wave_length = 240
      @battleback_sprite.wave_speed = 120
    when 1
      source = $game_temp.background_bitmap
      bitmap = Bitmap.new(640, 480)
      bitmap.stretch_blt(bitmap.rect, source, source.rect)
      @battleback_sprite = Sprite.new(@viewport1)
      @battleback_sprite.bitmap = bitmap
      @battleback_sprite.ox = 320
      @battleback_sprite.oy = 240
      @battleback_sprite.x = 272
      @battleback_sprite.y = 176
    when 2
      @battleback_sprite = BattleBackSprite.new(@viewport1)
    end
  end
  #--------------------------------------------------------------------------
  # ? Creating Battle Floor Sprite
  #--------------------------------------------------------------------------
  alias create_battlefloor_mbb create_battlefloor
  def create_battlefloor
    create_battlefloor_mbb if BattleBack::BT_FLOOR
  end
  #--------------------------------------------------------------------------
  # ? Delete Battle Floor Sprite
  #--------------------------------------------------------------------------
  alias dispose_battlefloor_mbb dispose_battlefloor
  def dispose_battlefloor
    dispose_battlefloor_mbb if BattleBack::BT_FLOOR
  end
  #--------------------------------------------------------------------------
  # ? Update Battle Floor Sprite
  #--------------------------------------------------------------------------
  alias update_battlefloor_mbb update_battlefloor
  def update_battlefloor
    update_battlefloor_mbb if BattleBack::BT_FLOOR
  end
end


#==============================================================================
# ? BattleBackSprite
#==============================================================================
class BattleBackSprite   # Background Screen Size
  WIDTH  = 544.00
  HEIGHT = 288.00
  #--------------------------------------------------------------------------
  # ? Object Initialization
  #     viewport : viewport
  #--------------------------------------------------------------------------
  def initialize(viewport = nil)
    super(viewport)
    self.bitmap = Cache.system(BattleBack::M_B_BACK[$game_map.map_id])
    # Zoom is carried out according to picture size.
    @x_zoom = WIDTH / self.bitmap.width
    @y_zoom = HEIGHT / self.bitmap.height
    @zoom = @x_zoom > @y_zoom ? @x_zoom : @y_zoom
    # Zoom is carried out.
    self.zoom_x = @zoom
    self.zoom_y = @zoom
    # Made into central display.
    self.ox = self.bitmap.width / 2
    self.oy = self.bitmap.height / 2
    self.x = (self.bitmap.width / 2)  * @zoom
    self.y = (self.bitmap.height / 2) * @zoom
  end
end