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[Meph]

I know that force event can trigger migrants to appear. Would it be possible to make a script that checks for such an event to occur and set it to "no migrants came"?

I want to stop migration completely for a race; formerly I've been doing that by ensuring that the civ dies out in world gen. That is no longer easily done, because breeding castes are now necessary for the civ to be placed and scholars, mercenaries, etc join the civ, keeping it artificially alive.

[lethosor]

It might be possible to delete the scheduled migrant events before they occur. I don't know how far in advance DF schedules them before they occur, though.

[Putnam]

http://www.bay12forums.com/smf/index.php?topic=125638.msg7048513#msg7048513

?

[Meph]

Aaahhhh... I forgot to send you feedback about it, didnt I? Sorry.

Code: [Select]

local function removeMigrantWaves()
    local indexesToErase={}
    for k,v in ipairs(df.global.timed_events) do
        if v.type==df.timed_event_type['Migrants'] then
            table.insert(indexesToErase,k)
        end
    end
    for i=#indexesToErase,1,-1 do
        df.global.timed_events:erase(indexesToErase[i])
    end
end

require('repeat-util').scheduleEvery('remove migrant waves',1,'ticks',removeMigrantWaves)
That works, but I have to run it from a workshop every time I load a save. I cant just put it in the onload.init, because it would stop all migration to all civs. To use it, it would need to be smart enough to know which race you are playing. Adding one argument, the civID, would be enough... it could check if the local civ is the civID in question, if yes, stop migrants; if no, do nothing.

[Roses]

Code: [Select]

local function removeMigrantWaves()
  if df.global.world.entities.all[df.global.ui.civ_id].entity_raw.code == 'MOUNTAIN' then
    local indexesToErase={}
    for k,v in ipairs(df.global.timed_events) do
        if v.type==df.timed_event_type['Migrants'] then
            table.insert(indexesToErase,k)
        end
    end
    for i=#indexesToErase,1,-1 do
        df.global.timed_events:erase(indexesToErase[i])
    end
  end
end

require('repeat-util').scheduleEvery('remove migrant waves',1,'ticks',removeMigrantWaves)
Replace mountain with whatever entity you want.

[Bogus]

That works, but I have to run it from a workshop every time I load a save.

dfhack.onStateChange should do?

[Quietust]

In prior versions, migrant waves were only scheduled at the very beginning of the season; given what you're describing, however, it would seem to no longer be the case...

[Putnam]

His problem is operating it on a per-entity basis, not having migrants not be prevented AFAIK. The script I posted seems to work, and based on what you're saying can probably be changed to run every 1200 ticks instead of every tick.