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[frankwilliams]

So I've been running my main fort for 23 years dwarven time, a few have died (maybe 100 or so?) but most stayed alive, and I'm stuck at a population of 120. I tried increasing my population cap but it did nothing. I generated in a pretty huge size world so I doubt my civ just ran out of dwarves but I guess it's possible. Is it possible to just "run out of migrants"? If so, how do I fix it? I still want my fort to grow without waiting for dwarves to have their kids grow up.

[Mushroo]

Do you trade with the dwarf traders in the autumn? I've read this is necessary to "get the word out" to potential migrants...

[Garath]

If too many creatures die at your fort, migration can stop too, iirc

[Sutremaine]

I had that problem (have you lost the brown 'fortress has attracted no migrants this season' message as well?). I think a DFHack fix existed for 31.25 -- it's the same as the one for 34.11, and clears out the unit list.

[frankwilliams]

I had that problem (have you lost the brown 'fortress has attracted no migrants this season' message as well?). I think a DFHack fix existed for 31.25 -- it's the same as the one for 34.11, and clears out the unit list.

I have lost that message, yeah. What is the name of the hack? I don't see anything in the list running it now.

Do you trade with the dwarf traders in the autumn? I've read this is necessary to "get the word out" to potential migrants...

No, I stopped trading when my fortress became so capable of production as to render trading useless... will try to trade with them again I guess.

[Sutremaine]

I have lost that message, yeah. What is the name of the hack? I don't see anything in the list running it now.

I don't have it in my 21.25 folder, but here's the text from the lua file for the 34.11 version:

Spoiler (click to show/hide)

Code: [Select]

-- Remove uninteresting dead units from the unit list.

local units = df.global.world.units.active
local dwarf_race = df.global.ui.race_id
local dwarf_civ = df.global.ui.civ_id
local count = 0

for i=#units-1,0,-1 do
    local unit = units[i]
    local flags1 = unit.flags1
    local flags2 = unit.flags2
    if flags1.dead and unit.race ~= dwarf_race then
        local remove = false
        if flags2.slaughter then
            remove = true
        elseif not unit.name.has_name then
            remove = true
        elseif unit.civ_id ~= dwarf_civ and
               not (flags1.merchant or flags1.diplomat) then
            remove = true
        end
        if remove then
            count = count + 1
            units:erase(i)
        end
    end
end

print('Units removed from active: '..count)


I can't get it to work in 21.25, but I can't get any of the existing lua scripts to work either. You should probably go ask in the DFHack thread.

[frankwilliams]

I have lost that message, yeah. What is the name of the hack? I don't see anything in the list running it now.

I don't have it in my 21.25 folder, but here's the text from the lua file for the 34.11 version:

Spoiler (click to show/hide)

Code: [Select]

-- Remove uninteresting dead units from the unit list.

local units = df.global.world.units.active
local dwarf_race = df.global.ui.race_id
local dwarf_civ = df.global.ui.civ_id
local count = 0

for i=#units-1,0,-1 do
    local unit = units[i]
    local flags1 = unit.flags1
    local flags2 = unit.flags2
    if flags1.dead and unit.race ~= dwarf_race then
        local remove = false
        if flags2.slaughter then
            remove = true
        elseif not unit.name.has_name then
            remove = true
        elseif unit.civ_id ~= dwarf_civ and
               not (flags1.merchant or flags1.diplomat) then
            remove = true
        end
        if remove then
            count = count + 1
            units:erase(i)
        end
    end
end

print('Units removed from active: '..count)


I can't get it to work in 21.25, but I can't get any of the existing lua scripts to work either. You should probably go ask in the DFHack thread.

That's interesting but I have no idea how to run it or what to do with that section of code. Sorry!

[Garath]

so, ask what you can do in the dfhack thread (and how)
http://www.bay12forums.com/smf/index.php?topic=91166.0

[madmario]

DFHack:  fix/dead-units

If you get over 3k dead units--dwarves or zombies or whatever--dwarfs can stop getting preggo, migrants stop coming, and so on.  This script removes a great deal of the ostensibly "uninteresting" units.  It's super key if you're somewhere plagued by zombies.

[Quietust]

If you get over 3k dead units--dwarves or zombies or whatever--dwarfs can stop getting preggo, migrants stop coming, and so on.

Last I checked, it only affects the size of migrant waves, nothing else.

[madmario]

Well, in my game in an evil biome, dwarfs stopped getting preggo as well--for years. I applied the fix and they started having babies again. *shrug*. I may have a backup save somewhere if you'd like

There are two population caps. The soft cap (default 200 dwarf adults) does not affect pregnancies, but does affect migrant waves.  This is the 3000 cap.

[Quietust]

I know where to find both the migrant code and the pregnancy code (I'm the one who discovered the migrant wave size cap and confirmed the animal breeding population cap), and only the former contains the 3000-unit cap logic (which isn't strictly a cap, since it also reduces migrant wave sizes as you approach 3000 in-play units) - the latter just checks your BABY_CHILD_CAP, and getting more migrants can allow you to get more children if you were at the maximum children-per-adults ratio.