Electric Energy Interface Animations

[Pandemoneus]

Hi,

how do I add a (dis-)charge animation to electric-energy-interface entity types similar to the accumulator?
My goal is not to add a whole animation, but to simply change the sprite when the electric energy interface is outputting power to the network.

This is the base pic definition:

Code: Select all

    picture =
    {
      filename = "__biter_spire__/graphics/biter_spire_neutral.png",
      priority = "extra-high",
      width = 128,
      height = 128,
      shift = {1, -1}
    },

And this is what I've tried to get some "animation":

Code: Select all

      animation =
    {
      filename = "__biter_spire__/graphics/biter_spire_unload.png",
      width = 128,
      height = 128,
      shift = {1, -1},
      line_length = 1,
      frame_count = 1,
      animation_speed = 1,
    },

and

Code: Select all

      charge_animation =
    {
      filename = "__biter_spire__/graphics/biter_spire_unload.png",
      width = 128,
      height = 128,
      shift = {1, -1},
      line_length = 1,
      frame_count = 1,
      animation_speed = 1,
    },

[Pandemoneus]

So I guess nobody knows?