Factorio Forums

Is there a way to stop trees from removing pollution? In an ideal world, the only way to remove pollution would be because bitters absorbed it.

What I am trying to do, is to create some settings, where there are almost constant bitter attacks, but where expansion is not a chore, because you have to clear 100 bases just to expand.

I tried to create a world with
Diffusion ratio: 10%
Dissipation ratio: 0
Minimum damage to trees: 9999
Absorbed per damaged tree: 0

But trees still absorb the pollution -(

You need to make a mod with something like this in data.lua:

DaveMcW wrote:You need to make a mod with something like this in data.lua:

Code: Select all

for _,tree in pairs(data.raw.tree) do
    tree.emissions_per_tick = 0
end

thanks, I might start a mod then

But then what does "Absorbed per damaged tree:" do then? I thought this was the way pollution got absorbed by trees.

mtilsted wrote:But then what does "Absorbed per damaged tree:" do then? I thought this was the way pollution got absorbed by trees.

When polution gets too high it can damage trees. You probably won't notice this if you clear the trees around your factory as there may not be any trees left in chunks where pollution is high enough to cause damage.

Tubig wrote:

mtilsted wrote:But then what does "Absorbed per damaged tree:" do then? I thought this was the way pollution got absorbed by trees.

When polution gets too high it can damage trees. You probably won't notice this if you clear the trees around your factory as there may not be any trees left in chunks where pollution is high enough to cause damage.

I don't think that part works correct then. I tried to start a game with both "Minimum damage to trees:" and "Absorbed per damaged tree" set to 68 (The lowest possible value > 0) and even when a square had over 500 pollution, i newer saw a single tree take damage.

They don't take damage in the sense of losing HP (like they do when you drive into them) - they just gradually get more brown and withered until eventually they look "dead". See https://www.reddit.com/r/factorio/comme ... _there_is/ for a before/after shot of what it looks like.

Nuke 'em

Here was breath flag, that means pollution removing.

Besides trees tiles also absorb pollution.

https://wiki.factorio.com/Pollution

Every chunk has a natural absorption rate per tick which is determined by the weighted average of its floor tiles.

So you need to also modify all tiles in the world.