領域を広げて表示をシフトする

gistfile1.txt

    #文字用のimageを作成
    @entity.dispose if @entity and !(@entity.disposed?)
    @entity = DXRuby::Image.new(@width+64, @height+64, [0, 0, 0, 0])
    self.offset_sync = true
    self.center_x = 32 
    self.center_y = 32
    
    #フォントを描画
    @entity.draw_font_ex( offset_x+32, 
                          offset_y+32, 
                          @char, 
                          @font_obj, 
                          @font_draw_option)