module Graphics

  Sfml_Draw = Win32API.new('WOM32', 'sfml_draw', 'pllllll', 'i')
  Sfml_Draw_Rectangle = Win32API.new('WOM32', 'sfml_draw_rectangle', 'lllllllll', 'l')
  Sfml_Draw_Text = Win32API.new('WOM32', 'sfml_draw_text', 'plllllllllll', 'l')
  Sfml_Display = Win32API.new('WOM32', 'sfml_display', '', 'l')
  Sfml_Clear = Win32API.new('WOM32', 'sfml_clear', '', 'l')

  DRAW_TYPE_NORMAL = 0
  DRAW_TYPE_RECTANGLE = 1
  DRAW_TYPE_TEXT = 2

  module_function

  @sprites = []

  def self.load_texture(path)
    s = Win32API.new('WOM32', 'sfml_load_texture', 'p', 'p').call path
    size = [s.split(';')[0].to_i, s.split(';')[1].to_i]
    return size
  end

  def draw(filename, rec_x, rec_y, width, height, x, y)
    result = Sfml_Draw.call filename, rec_x, rec_y, width, height, x, y
  end

  def fill_rect(r, g, b, a, x, y, width, height, thickness)
    result = Sfml_Draw_Rectangle.call r, g, b, a, x, y, width, height, thickness
  end

  def draw_text(str, x, y, size, r, g, b, a, bold, underline, italic, regular)
    result = Sfml_Draw_Text.call str, x, y, size, r, g, b, a, bold, underline, italic, regular
  end

  def display
    result = Sfml_Display.call
  end

  def clear
    result = Sfml_Clear.call
  end

  def update
    clear
    #
    sprlist =  @sprites.clone

    #test = Tick.tackPrecise

    sprlist.sort! { |a,b| a.z <=> b.z }

    sprlist.map!{|spr|;
      if spr.visible && !spr.bitmap.nil?
        spr.bitmap.draws.each{|draw|;
          if draw.type == DRAW_TYPE_NORMAL
            draw(draw.filepath, draw.rect.x, draw.rect.y, draw.rect.width, draw.rect.height, spr.x + draw.x, spr.y + draw.y)
          elsif draw.type == DRAW_TYPE_RECTANGLE
            #fill_rect(draw.r, draw.g, draw.b, draw.a, draw.x, draw.y, draw.width, draw.height, draw.thickness)
          elsif draw.type == DRAW_TYPE_TEXT
            draw_text(draw.text, spr.x + draw.x, spr.y + draw.y, draw.size, draw.r, draw.g, draw.b, draw.a, draw.bold, draw.underlined, draw.italic, draw.regular)
          end
        }
      end
    }

    #test2 = Tick.tackPrecise

    #p "AH"
    #p test2 - test

    display
  end

  def self.newSpr(spr)
    @sprites = [] if @sprites.nil?
    @sprites.push(spr)
  end
end