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-- Counts monsters in a specify level, or level range.
local niters = 150
local output_file = "monster-report.out"
local excluded_things = util.set({}) -- "plant", "fungus", "bush" })
local function count_monsters_at(place, set)
debug.goto_place(place)
test.regenerate_level()
local monsters_here = set or { }
for mons in test.level_monster_iterator() do
local mname = mons.name
if not excluded_things[mname] then
local count = monsters_here[mname] or 0
monsters_here[mname] = count + 1
end
end
return monsters_here
end
local function report_monster_counts_at(place, mcount_map)
local text = ''
text = text .. "\n-------------------------------------------\n"
text = text .. place .. " monsters per-level\n"
text = text .. "-------------------------------------------\n"
local monster_counts = util.pairs(mcount_map)
table.sort(monster_counts, function (a, b)
return a[2].total > b[2].total
end)
local total = 0
for _, monster_pop in ipairs(monster_counts) do
total = total + monster_pop[2].total
end
for _, monster_pop in ipairs(monster_counts) do
text = text .. string.format("%5.2f (min: %2d, max: %2d, sd: %6.2f, %%: %6.2f%%) %s\n",
monster_pop[2].mean,
monster_pop[2].min,
monster_pop[2].max,
monster_pop[2].sigma,
monster_pop[2].total * 100.0 / total,
monster_pop[1])
end
return text
end
local function report_monster_counts(mcounts)
local places = util.keys(mcounts)
table.sort(places)
local text = ''
for _, place in ipairs(places) do
text = text .. report_monster_counts_at(place, mcounts[place])
end
file.writefile(output_file, text)
crawl.mpr("Dumped monster stats to " .. output_file)
end
local function calculate_monster_stats(iter_mpops)
local final_stats = { }
local n = #iter_mpops
for _, mpop in ipairs(iter_mpops) do
for mons, count in pairs(mpop) do
local mstats =
final_stats[mons] or { total = 0, max = 0, min = 0, pops = { } }
mstats.total = mstats.total + count
if count > mstats.max then
mstats.max = count
end
if count < mstats.min then
mstats.min = count
end
table.insert(mstats.pops, count)
final_stats[mons] = mstats
end
end
for mons, stat in pairs(final_stats) do
stat.mean = stat.total / n
local totaldelta2 = 0
local mean = stat.mean
for _, count in ipairs(stat.pops) do
local delta = count - mean
totaldelta2 = totaldelta2 + delta * delta
end
stat.sigma = math.sqrt(totaldelta2 / n)
end
return final_stats
end
local function count_monsters_from(start_place, end_place)
local place = start_place
local mcounts = { }
while place do
local mset = { }
local iter_mpops = { }
for i = 1, niters do
crawl.mesclr()
crawl.mpr("Counting monsters at " .. place .. " (" ..
i .. "/" .. niters .. ")")
local res = count_monsters_at(place)
table.insert(iter_mpops, res)
end
mcounts[place] = calculate_monster_stats(iter_mpops)
if place == end_place then
break
end
place = test.deeper_place_from(place)
end
report_monster_counts(mcounts)
end
local function parse_resets(resets)
local pieces = crawl.split(resets, ",")
local resets = { }
for _, p in ipairs(pieces) do
local _, _, place, depth = string.find(p, "^(.+)=(%d+)$")
table.insert(resets, { place, tonumber(depth) })
end
return resets
end
local function branch_resets()
local args = crawl.script_args()
local resets = { }
for _, arg in ipairs(args) do
local _, _, rawresets = string.find(arg, "^-reset=(.*)")
if rawresets then
util.append(resets, parse_resets(rawresets))
end
end
return resets
end
local function set_branch_depths()
for _, reset in ipairs(branch_resets()) do
debug.goto_place(reset[1], reset[2])
end
end
local function start_end_levels()
local args = script.simple_args()
if #args == 0 then
script.usage([[
Usage: place-population <start> [<end>]
For instance: place-population Shoal:1 Shoal:5
place-population Lair:3
You may optionally force branches to have entrances at specific places
with:
place-population -reset=Lair:1=8,Snake:1=3 Snake:5
With the general form:
-reset=<place>=<depth>[,<place>=<depth>,...]
where <place> is a valid place name as used in .des files, and <depth> is the
depth of the branch's entrance in its parent branch. Thus -reset=Snake:1=3
implies that the entrance of the Snake Pit is assumed to be on Lair:3.
]])
end
return args[1], args[2] or args[1]
end
set_branch_depths()
local lstart, lend = start_end_levels()
count_monsters_from(lstart, lend)
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