nine-slice (stretching) for dragonruby

nine_slice.rb

def nine_slice sprite
  x = sprite.x
  y = sprite.y
  w = sprite.w
  h = sprite.h
  path = sprite.path
  t_x = sprite.tile_x
  t_y = sprite.tile_y
  o_w = sprite.tile_w
  o_h = sprite.tile_h
  c_w = sprite.corner_w || sprite.corner_s
  c_h = sprite.corner_h || sprite.corner_s
  
  return [
   # center
   {
      x: x + c_w,
      y: y + c_h,
      w: w - 2 * c_w,
      h: h - 2 * c_h,
      path: path,
      tile_x: t_x + c_w,
      tile_y: t_y + c_h,
      tile_w: o_w - 2 * c_w,
      tile_h: o_h - 2 * c_h,
      section: "center",
    },
   # corners
   {
      x: x,
      y: y + h - c_h,
      w: c_w,
      h: c_h,
      path: path,
      tile_x: t_x,
      tile_y: t_y,
      tile_w: c_w,
      tile_h: c_h,
      section: "top_left_corner",
    },
   {
      x: x + w - c_w,
      y: y + h - c_h,
      w: c_w,
      h: c_h,
      path: path,
      tile_x: t_x + o_w - c_w,
      tile_y: t_y,
      tile_w: c_w,
      tile_h: c_h,
      section: "top_right_corner",
    },
   {
      x: x,
      y: y,
      w: c_w,
      h: c_h,
      path: path,
      tile_x: t_x,
      tile_y: t_y + o_h - c_h,
      tile_w: c_w,
      tile_h: c_h,
      section: "bottom_left_corner",
    },
   {
      x: x + w - c_w,
      y: y,
      w: c_w,
      h: c_h,
      path: path,
      tile_x: t_x + o_w - c_w,
      tile_y: t_y + o_h - c_h,
      tile_w: c_w,
      tile_h: c_h,
      section: "bottom_right_corner",
    },
   # edges
   {
      x: x + c_w,
      y: y + h - c_h,
      w: w - 2 * c_w,
      h: c_h,
      path: path,
      tile_x: t_x + c_w,
      tile_y: t_y,
      tile_w: o_w - 2 * c_w,
      tile_h: c_h,
      section: "top_edge",
    },
   {
      x: x + c_w,
      y: y,
      w: w - 2 * c_w,
      h: c_h,
      path: path,
      tile_x: t_x + c_w,
      tile_y: t_y + o_w - c_h,
      tile_w: o_w - 2 * c_w,
      tile_h: c_h,
      section: "bottom_edge",
    },
   {
      x: x,
      y: y + c_h,
      w: c_w,
      h: h - 2 * c_h,
      path: path,
      tile_x: t_x,
      tile_y: t_y + c_h,
      tile_w: c_w,
      tile_h: o_h - 2 * c_h,
      section: "left_edge",
    },
   {
      x: x + w - c_w,
      y: y + c_h,
      w: c_w,
      h: h - 2 * c_h,
      path: path,
      tile_x: t_x + o_w - c_w,
      tile_y: t_y + c_h,
      tile_w: c_w,
      tile_h: o_h - 2 * c_h,
      section: "right_edge",
    }
  ]
end