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The 2 drawtypes 'glasslike_framed' and 'glasslike_framed_optional' have the ability to act as hollow tanks of liquid containing a liquid level with 64 levels defined by param2. This has until now been completely undocumented and was missing a 'paramtype2' for that use of param2.

I have now fixed this, but this means that nodes being used as liquid tanks now need to have this line added to their node definitions:

Okay then; how do we use this?

Examples for how to set fill level in 1/16ths.

Examples for settings textures to liquid and glass node.

If you don't tell us how to use it, then it's a useless feature as there's no documentation in useful terms.

I added some documentation in my commit https://github.com/minetest/minetest/co ... 5a4b404409
Param2 values 0 to 63 define 64 levels, so for 1/16ths use values 0, 3, 7, 11 ...
Glass and frame textures are as standard glaslike_framed.

wow this is awesome! it looks odd though with solid blue color.

paramat wrote:I added some documentation in my commit https://github.com/minetest/minetest/co ... 5a4b404409

Code: Select all

    paramtype2 == "glasslikeliquidlevel"
    ^ Only valid for "glasslike_framed" or "glasslike_framed_optional" drawtypes.
      param2 defines 64 levels of internal liquid.
      Liquid texture is defined using `special_tiles = {"modname_tilename.png"},`

Param2 values 0 to 63 define 64 levels, so for 1/16ths use values 0, 3, 7, 11 ...
Glass and frame textures are as standard glaslike_framed.

~~Is it using param2 = 0-63 or 0-127?~~

^ Ignore that.

Absolutely fabulous.

Does this mean we can fill a window with water?

Does this mean we can fill mutiple windows like if it was only one big window?

azekill_DIABLO wrote:Does this mean we can fill mutiple windows like if it was only one big window?

That is an interesting idea. How does this interact with glass_like_framed?

To be clear, a liquid tank only supports 64 levels, with 64 being 'full', and param2 values 0 to 63 control the level.
So 1/2 full is 31, 1/4 full is 15, 1/8 full is 7 etc.

Connected tanks work horizontally only.

So how do I place water inside glass? Do I need to edit the mods?

Good Work developers and you Paramat +10

Is it possible to change the colour?

Wasn't this an April Fools prank!?

It was posted 30 March, so no

maikerumine wrote:Wasn't this an April Fools prank!?

https://github.com/minetest/minetest/pull/5478

Erm, there are questions in this thread that are all answered in the 3rd post.
Not a prank, it was a feature added by RealBadAngel years ago and never properly documented.

My apologies :)

this is really nice feature

paramat, is it possible to make connected tanks work vertically too, eventually?

texmex, you can set the bottom ones to full and the top ones to empty, which would result in the same result, I'm guessing

old videos documenting RealBadAngel's experiments with this
Glasslike Framed - Liquid Oxygen tanks
Tanks update

Thank you both.

paramat wrote: The 2 drawtypes 'glasslike_framed' and 'glasslike_framed_optional' have the ability
to act as hollow tanks of liquid containing a liquid level with 64 levels defined by param2.

Can it use negative numbers too, to reverse the placement,
i.e. put the 'liquid' on top, growing down ?

Then it could be used for a window-shade.

And if the liquid could be placed on the left edge, growing to the right,
we could have an ingame-progressbar.

> paramat, is it possible to make connected tanks work vertically too, eventually?

That would be quite complex as you need to search up and down and detect vertical dimensions. Horizontally naturally works with almost no effort.
You could do this with Lua code in a mod setting param2 according to position in the stacked nodes.