An asset that allows users to vote for what plays next — games, maps or modes — and every part of it is a setting.

Rock the vote, nominations, per-choice time limits, a ballot, and the change at the end of it. The shape every server in this genre has had since 2005 (rtv, nominate, mapchooser, timeleft, extend), rebuilt so that a community that wants it to work differently changes a number rather than forking it.

var votes := DotVoteDirector.new()
votes.rules = DotVoteRules.new()
votes.source = DotVoteGameSource.of(server.games)   # or a map catalogue, or your own
votes.player_count_fn = func() -> int: return players.size()
add_child(votes)

votes.begin(&"lobby")        # what is running now

# once per tick
votes.advance(delta)

That is the whole integration. Everything else is configuration.

What it does

Rock the vote	A fraction of the players, with a minimum player count, a delay at the start of every map, idempotent per player, and votes withdrawn when their owner disconnects.
Nominations	Per-player caps, a total cap, seconding (so "most nominated" means something), admin bypass, and reserved places on the ballot so three organised players cannot decide every map.
Time limits	In seconds, in rounds, or both — per choice, so a forty-minute surf map and a ten-minute bhop map are not forced under one number. Multiple warnings, extending with a cap.
The ballot	Up to N options, filled five ways, with "extend" and "none of these" as options a server can turn on or off. Opens a configurable lead time before the map ends, so the change happens on time.
Counting	Plurality, approval, instant runoff, or a majority runoff. Quorums, weighted ballots, and five tie-breaks — four of which a player watching can predict.
Cooldowns	In plays or in wall-clock minutes, per choice, clamped against the pool so a long cooldown on a short rotation cannot exclude everything.
Applying	Immediately, at the end of the round, or when the clock runs out — with a delay so players can read the result.
Commands	nominate, rtv, votefor, timeleft, nextmap, revote, extend, endvote, and more, on a dot-server console and in chat. Every name configurable.

The pieces

DotVoteRules	Every policy decision, as one DotConfig. Layers defaults < file < DOT_VOTE_* < --vote-*, and enum settings are written by name (method: instant_runoff).
DotVoteChoice	One thing that can be voted for: an id, a name, and the few facts a ballot needs — player counts, its own time limit, its own cooldown, its weight.
DotVoteSource	Where the choices come from and what "play this" means. The one seam.
DotVoteDirector	The Node that joins them, driven by one advance(delta) per tick.
DotVoteClock	The limit, the warnings, the extends and the rock-the-vote.
DotVoteBallot	The open ballot and the four counting methods.
DotVoteNominations	What players have asked for, in order.
DotVoteHistory	What has been played, and what is still on cooldown.
DotVoteResult	What was decided, and how — including which tie-break, so the announcement can explain itself.

Pointing it at something

Three sources ship with it, and none of them names a class outside dot-core:

DotVoteGameSource.of(server.games)          # dot-server's games
DotVoteMapSource.of(catalogue, session)     # dot-map's maps
DotVoteListSource.of(my_choices)            # anything else, with a Callable

The two integrations are duck-typed, so this addon installs in a project that has never heard of dot-server or dot-map. Per-choice settings live in the thing's own metadata, so a game's time limit is written beside the game:

# content/arena/game.yml
metadata:
  vote:
    time_limit_sec: 2400
    weight: 2.0

A source that cannot change anything is legitimate: the director runs the whole vote and emits change_due for the host to act on, which is what a client mirroring a server's ballot does.

Configuring it

trigger: time_limit
duration_sec: 1800
vote_lead_sec: 120           # the ballot opens two minutes before the end
warn_at_sec: "300,60,30"

rtv_fraction: 0.6
rtv_min_players: 2
rtv_delay_sec: 120           # no rtv in the first two minutes

max_options: 6
nomination_slots: 4
fill: least_recently_played
method: instant_runoff
tie_break: nomination_order
quorum: 0.4
on_no_quorum: keep

cooldown: 5
apply: end_of_round
apply_delay_sec: 5

Fifty-five settings, and the self-test fails if any one of them is read by nothing.

Validating it

godot --headless --path . --import
find . -name '*.gd' -not -path './.godot/*' | while read f; do
    godot --headless --path . --check-only --script "res://${f#./}"
done
godot --headless --path . res://examples/vote_selftest.tscn

231 checks. The last two sections run this addon against a real DotGameManager and a real DotMapCatalogue and change what they are running, because "the two ends have never met" is how the expensive bugs in this family start.

Dependencies

dot-core, and nothing else. dot-server and dot-map are optional and are reached by duck typing.

ln -s ../../dot-core/addons/dot_core addons/dot_core

# optional, and only so the self-test can run the integrations for real
ln -s ../../dot-map/addons/dot_map addons/dot_map
ln -s ../../dot-server/addons/dot_server addons/dot_server