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function make_4way_animation_from_spritesheet(animation)
  local function make_animation_layer(idx, anim)
    local start_frame = (anim.frame_count or 1) * idx
    local x = 0
    local y = 0
    if anim.line_length then
      y = anim.height * math.floor(start_frame / (anim.line_length or 1))
    else
      x = idx * anim.width
    end
    return
    {
      filename = anim.filename,
      priority = anim.priority or "high",
      x = x,
      y = y,
      width = anim.width,
      height = anim.height,
      frame_count = anim.frame_count or 1,
      line_length = anim.line_length,
      repeat_count = anim.repeat_count,
      shift = anim.shift,
      draw_as_shadow = anim.draw_as_shadow,
      force_hr_shadow = anim.force_hr_shadow,
      apply_runtime_tint = anim.apply_runtime_tint,
      scale = anim.scale or 1,
      tint = anim.tint
    }
  end

  local function make_animation_layer_with_hr_version(idx, anim)
    local anim_parameters = make_animation_layer(idx, anim)
    if anim.hr_version and anim.hr_version.filename then
      anim_parameters.hr_version = make_animation_layer(idx, anim.hr_version)
    end
    return anim_parameters
  end

  local function make_animation(idx)
    if animation.layers then
      local tab = { layers = {} }
      for k,v in ipairs(animation.layers) do
        table.insert(tab.layers, make_animation_layer_with_hr_version(idx, v))
      end
      return tab
    else
      return make_animation_layer_with_hr_version(idx, animation)
    end
  end

  return
  {
    north = make_animation(0),
    east = make_animation(1),
    south = make_animation(2),
    west = make_animation(3)
  }
end