thirst factor should change for all players on server.

months.lua

@@ -88,8 +88,11 @@ local day = mymonths.day_counter
 					mymonths.month = m2
 					mymonths.day_speed = m3
 					mymonths.night_speed = m4
-					if thirst == true then --This effects the players thirst speed.
-						thirsty.set_thirst_factor(player, m5) --I'm assuming that a faster factor means getting thirsty faster???
+					if thirst == true then
+						for _,player in ipairs(minetest.get_connected_players()) do
+							local name = player:get_player_name()
+							thirsty.set_thirst_factor(name, m5)
+						end
 					end
 				end
 			end