[RGSS2] Center Message Align

# [VX] Center Message Alignment with Fade In
# Author: DrDhoom
# Date: 06-04-2013

class Window_Message < Window_Selectable

  def update_message
    loop do
      c = @text.slice!(/./m)            # Get next text character
      case c
      when nil                          # There is no text that must be drawn
        finish_message                  # Finish update
        break
      when "\x00"                       # New line
        update_display_text
        @text_display = ""
        new_line
        if @line_count >= MAX_LINE      # If line count is maximum
          unless @text.empty?           # If there is more
            self.pause = true           # Insert number input
            break
          end
        end
      when "\x01"                       # \C[n]  (text character color change)
        @text.sub!(/\[([0-9]+)\]/, "")
        contents.font.color = text_color($1.to_i)
        next
      when "\x02"                       # \G  (gold display)
        @gold_window.refresh
        @gold_window.open
      when "\x03"                       # \.  (wait 1/4 second)
        @wait_count = 15
        break
      when "\x04"                       # \|  (wait 1 second)
        @wait_count = 60
        break
      when "\x05"                       # \!  (Wait for input)
        self.pause = true
        break
      when "\x06"                       # \>  (Fast display ON)
        @line_show_fast = true
      when "\x07"                       # \<  (Fast display OFF)
        @line_show_fast = false
      when "\x08"                       # \^  (No wait for input)
        @pause_skip = true
      else                              # Normal text character
        @text_display = "" if @text_display == nil
        @text_display += c
      end
    end
  end

  def update_display_text
    @color = contents.font.color.clone
    @color.alpha = 0
    Sound.play_cursor
    loop do
      if @show_fast or @line_show_fast
        @color.alpha = 255
      end
      Graphics.update
      Input.update
      update_show_fast
      contents.clear_rect(0,@contents_y, contents.width, WLH)
      @color.alpha += 16
      contents.font.color = @color
      contents.draw_text(0, @contents_y, contents.width, WLH, @text_display,1)
      if @color.alpha == 255
        break
      end
    end
  end
end