Added a config for map voting types.

code/controllers/configuration/entries/general.dm

@@ -267,6 +267,9 @@
 
 /datum/config_entry/flag/tgstyle_maprotation
 
+/datum/config_entry/string/map_vote_type
+	config_entry_value = "SCORE"
+
 /datum/config_entry/number/maprotatechancedelta
 	config_entry_value = 0.75
 	min_val = 0

code/controllers/subsystem/ticker.dm

@@ -477,7 +477,15 @@ SUBSYSTEM_DEF(ticker)
 	if(CONFIG_GET(flag/tgstyle_maprotation))
 		INVOKE_ASYNC(SSmapping, /datum/controller/subsystem/mapping/.proc/maprotate)
 	else
+		switch(CONFIG_GET(string/map_vote_type))
+			if("PLURALITY")
 				SSvote.initiate_vote("map","server",TRUE)
+			else if("APPROVAL")
+				SSvote.initiate_vote("map","server",TRUE,votesystem = APPROVAL_VOTING)
+			else if("IRV")
+				SSvote.initiate_vote("map","server",TRUE,votesystem = INSTANT_RUNOFF_VOTING)
+			else if("SCORE")
+				SSvote.initiate_vote("map","server",TRUE,votesystem = MAJORITY_JUDGEMENT_VOTING)
 
 /datum/controller/subsystem/ticker/proc/HasRoundStarted()
 	return current_state >= GAME_STATE_PLAYING

config/config.txt

@@ -384,6 +384,15 @@ MAPROTATION
 ## When it's set to zero, the map will be randomly picked each round
 ALLOW_MAP_VOTING 1
 
+## Map voting type
+## Determines what kind of vote the map vote is
+## Options are:
+##   PLURALITY (default, only vote for one option)
+##   APPROVAL (can vote for as many as you want), I
+##   IRV (vote by ranked choice, winner determined by instant runoff algorithm)
+##   SCORE (give individual rankings of each choice, winner determined by majority judgement algorithm)
+MAP_VOTE_TYPE SCORE
+
 ## Map rotate chance delta
 ## This is the chance of map rotation factored to the round length.
 ## A value of 1 would mean the map rotation chance is the round length in minutes (hour long round == 60% rotation chance)