TPG.Voting.RockTheVote

Register ply's RTV vote and start the map vote once enough players agree. Any connected player counts toward both the numerator and totalPlayers, spectators included -- there is no team check here, unlike most other TPG systems. The threshold is max(ceil(totalPlayers * TPG.Config.rtvPercentRequired), TPG.Config.rtvMinPlayers), recomputed from scratch on every vote. Voting again after already voting is harmless (it just re-sets the same flag to true); there is no way to un-vote.