display actual names for unique beasts

changelog.txt

@@ -58,6 +58,7 @@ Template for new versions:
 - `assign-minecarts`: reassign vehicles to routes where the vehicle has been destroyed (or has otherwise gone missing)
 - `fix/dry-buckets`: prompt DF to recheck requests for aid (e.g. "bring water" jobs) when a bucket is unclogged and becomes available for use
 - `exterminate`: show descriptive names for the listed races in addition to their IDs
+- `exterminate`: show actual names for unique creatures such as forgotten beasts and titans
 - `fix/ownership`: now also checks and fixes room ownership links
 
 ## Documentation

exterminate.lua

@@ -134,12 +134,23 @@ local function getMapRaces(opts)
     local map_races = {}
     for _, unit in pairs(df.global.world.units.active) do
         if not checkUnit(opts, unit) then goto continue end
-        local craw = df.creature_raw.find(unit.race)
-        local unit_race_name = dfhack.units.isUndead(unit) and 'UNDEAD' or craw.creature_id
-        local race = ensure_key(map_races, unit_race_name)
+        local race_name, display_name
+        if dfhack.units.isUndead(unit) then
+            race_name = 'UNDEAD'
+            display_name = 'UNDEAD'
+        else
+            local craw = df.creature_raw.find(unit.race)
+            race_name = craw.creature_id
+            if race_name:match('^FORGOTTEN_BEAST_[0-9]+$') or race_name:match('^TITAN_[0-9]+$') then
+                display_name = dfhack.units.getReadableName(unit)
+            else
+                display_name = craw.name[0]
+            end
+        end
+        local race = ensure_key(map_races, race_name)
         race.id = unit.race
-        race.name = unit_race_name
-        race.display_name = unit_race_name == 'UNDEAD' and '' or craw.name[0]
+        race.name = race_name
+        race.display_name = display_name
         race.count = (race.count or 0) + 1
         ::continue::
     end
@@ -195,6 +206,17 @@ if not positionals[1] or positionals[1] == 'list' then
         table.insert(sorted_races, v)
     end
     table.sort(sorted_races, function(a, b)
+        if a.count == b.count then
+            local asuffix, bsuffix = a.name:match('([0-9]+)$'), b.name:match('([0-9]+)$')
+            if asuffix and bsuffix then
+                local aname, bname = a.name:match('(.*)_[0-9]+$'), b.name:match('(.*)_[0-9]+$')
+                local anum, bnum = tonumber(asuffix), tonumber(bsuffix)
+                if aname == bname and anum and bnum then
+                    return anum < bnum
+                end
+            end
+            return a.name < b.name
+        end
         return a.count > b.count
     end)
     for _,v in ipairs(sorted_races) do