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| 1 | +--Allow stressed dwarves to emigrate from the fortress |
| 2 | +-- For 34.11 by IndigoFenix; update and cleanup by PeridexisErrant |
| 3 | +-- old version: http://dffd.bay12games.com/file.php?id=8404 |
| 4 | +--[[=begin |
| 5 | +
|
| 6 | +emigration |
| 7 | +========== |
| 8 | +Allows dwarves to emigrate from the fortress when stressed, |
| 9 | +in proportion to how badly stressed they are and adjusted |
| 10 | +for who they would have to leave with - a dwarven merchant |
| 11 | +being more attractive than leaving alone (or with an elf). |
| 12 | +The check is made monthly. |
| 13 | +
|
| 14 | +A happy dwarf (ie with negative stress) will never emigrate. |
| 15 | +
|
| 16 | +Usage: ``emigration enable|disable`` |
| 17 | +
|
| 18 | +=end]] |
| 19 | + |
| 20 | +local args = {...} |
| 21 | +if args[1] == "enable" then |
| 22 | + enabled = true |
| 23 | +elseif args[1] == "disable" then |
| 24 | + enabled = false |
| 25 | +end |
| 26 | + |
| 27 | +function desireToStay(unit,method,civ_id) |
| 28 | + -- on a percentage scale |
| 29 | + value = 100 - unit.status.current_soul.personality.stress_level / 5000 |
| 30 | + if method == 'merchant' or method == 'diplomat' then |
| 31 | + if civ_id ~= unit.civ_id then value = value*2 end end |
| 32 | + if method == 'wild' then |
| 33 | + value = value*5 end |
| 34 | + return value |
| 35 | +end |
| 36 | + |
| 37 | +function desert(u,method,civ) |
| 38 | + u.relations.following = nil |
| 39 | + local line = dfhack.TranslateName(dfhack.units.getVisibleName(u)) .. " has " |
| 40 | + if method == 'merchant' then |
| 41 | + line = line.."joined the merchants" |
| 42 | + u.flags1.merchant = true |
| 43 | + u.civ_id = civ |
| 44 | + elseif method == 'diplomat' then |
| 45 | + line = line.."followed the diplomat" |
| 46 | + u.flags1.diplomat = true |
| 47 | + u.civ_id = civ |
| 48 | + else |
| 49 | + line = line.."abandoned the settlement in search of a better life." |
| 50 | + u.civ_id = -1 |
| 51 | + u.flags1.forest = true |
| 52 | + u.animal.leave_countdown = 2 |
| 53 | + end |
| 54 | + print(line) |
| 55 | + dfhack.gui.showAnnouncement(line, COLOR_WHITE) |
| 56 | +end |
| 57 | + |
| 58 | +function canLeave(unit) |
| 59 | + for _, skill in pairs(unit.status.current_soul.skills) do |
| 60 | + if skill.rating > 14 then return false end |
| 61 | + end |
| 62 | + if unit.flags1.caged |
| 63 | + or u.race ~= df.global.ui.race_id |
| 64 | + or u.civ_id ~= df.global.ui.civ_id |
| 65 | + or dfhack.units.isDead(u) |
| 66 | + or dfhack.units.isOpposedToLife(u) |
| 67 | + or u.flags1.merchant |
| 68 | + or u.flags1.diplomat |
| 69 | + or unit.flags1.chained |
| 70 | + or dfhack.units.getNoblePositions(unit) ~= nil |
| 71 | + or unit.military.squad_id ~= -1 |
| 72 | + or dfhack.units.isCitizen(unit) |
| 73 | + or dfhack.units.isSane(unit) |
| 74 | + or unit.profession ~= 103 |
| 75 | + or not dfhack.units.isDead(unit) |
| 76 | + then return false end |
| 77 | + return true |
| 78 | +end |
| 79 | + |
| 80 | +function checkForDeserters(method,civ_id) |
| 81 | + local allUnits = df.global.world.units.active |
| 82 | + for i=#allUnits-1,0,-1 do -- search list in reverse |
| 83 | + local u = allUnits[i] |
| 84 | + if canLeave(u) and math.random(100) < desireToStay(u,method,civ_id) then |
| 85 | + desert(u,method,civ_id) |
| 86 | + end |
| 87 | + end |
| 88 | +end |
| 89 | + |
| 90 | +function checkmigrationnow() |
| 91 | + local merchant_civ_ids = {} |
| 92 | + local diplomat_civ_ids = {} |
| 93 | + local allUnits = df.global.world.units.active |
| 94 | + for i=0, #allUnits-1 do |
| 95 | + local unit = allUnits[i] |
| 96 | + if dfhack.units.isSane(unit) |
| 97 | + and not dfhack.units.isDead(unit) |
| 98 | + and not dfhack.units.isOpposedToLife(unit) |
| 99 | + and not unit.flags1.tame |
| 100 | + then |
| 101 | + if unit.flags1.merchant then table.insert(merchant_civ_ids, unit.civ_id) end |
| 102 | + if unit.flags1.diplomat then table.insert(diplomat_civ_ids, unit.civ_id) end |
| 103 | + end |
| 104 | + end |
| 105 | + |
| 106 | + for _, civ_id in pairs(merchant_civ_ids) do checkForDeserters('merchant', civ_id) end |
| 107 | + for _, civ_id in pairs(diplomat_civ_ids) do checkForDeserters('diplomat', civ_id) end |
| 108 | + checkForDeserters('wild', -1) |
| 109 | +end |
| 110 | + |
| 111 | +local function event_loop() |
| 112 | + checkmigrationnow() |
| 113 | + dfhack.timeout(1, 'months', event_loop) |
| 114 | +end |
| 115 | + |
| 116 | +dfhack.onStateChange.loadEmigration = function(code) |
| 117 | + if code==SC_MAP_LOADED then |
| 118 | + if enabled then |
| 119 | + print("Emigration enabled.") |
| 120 | + event_loop() |
| 121 | + else |
| 122 | + print("Emigration disabled.") |
| 123 | + end |
| 124 | + end |
| 125 | +end |
| 126 | + |
| 127 | +if dfhack.isMapLoaded() then |
| 128 | + dfhack.onStateChange.loadEmigration(SC_MAP_LOADED) |
| 129 | +end |
| 130 | + |
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