Restore "planned fluid" alt-view overlay for pipes removed with 0.18.32

[Reika]

With the "reduced" version of the fluid mixing prevention system in 0.18.32, it appears we also lost the "marker overlay" that showed what fluid would go into each pipe.

This makes some amount of sense, but that was actually a really nice tool for keeping complex piping systems readily understandable, and a very useful aid when designing those same systems.

Compare a before and after of this system:






I am making a small tweak and I am already having a hell of a time keeping the fluid "channels" straight.

[valneq]

Since some fluids can go into the same fluid system now, how is this suggested feature supposed to handle conflicting pipe connections?

[Reika]

Since some fluids can go into the same fluid system now, how is this suggested feature supposed to handle conflicting pipe connections?

The simplest to implement would probably be a naive flood-fill approach, that is, fluid type propagates until it reaches a pipe segment already marked with some other type. That might also make identifying mix points/channel fistulas(ae?) easier.

[xenoscepter]

What is that big ol' jet turbine lookin' thingy? The just above the rightmost building at the bottom... a refinery I think it is.

Never seen that one before, is it a new pump? A re-designed turbine?

[Reika]

What is that big ol' jet turbine lookin' thingy? The just above the rightmost building at the bottom... a refinery I think it is.

Never seen that one before, is it a new pump? A re-designed turbine?

That is a NauvisDay pollution fan, to help disperse the pollution the refineries generate; It is not relevant to this issue.

[ixnorp]

I hope this can be modded back in. I am really going to miss this feature. It was so nice to have since pipes are such a pain in the ass to work with.