Ad vote module and correct readme

depends.txt

@@ -1 +1 @@
- 
+vote?

init.lua

@@ -12,7 +12,7 @@ if not mpd.modpath then
 end
 --{name, length, gain~1}
 mpd.songs = {}
-local sfile, sfileerr=io.open(mpd.modpath.."/songs.txt")
+local sfile, sfileerr=io.open(mpd.modpath..DIR_DELIM.."songs.txt")
 if not sfile then error("Error opening songs.txt: "..sfileerr) end
 for line in sfile:lines() do
 	if line~="" and line[1]~="#" then
@@ -206,3 +206,7 @@ minetest.register_chatcommand("mvolume", {
 		end
 	end,		
 })
+
+if vote then
+	dofile(mpd.modpath..DIR_DELIM.."vote.lua")
+end

readme.txt

@@ -5,15 +5,34 @@ This mod is licensed under the WTFPL.
 
 Adds an easy but powerful background music backend.
 
-Music credits:
+## Usage:
+
+For all players:
+/mvolume <volume>
+Set your individual music volume or disable background music (/mvolume 0). Saved across server restarts.
+/mpd_list: list available music
+
+With mpd privilege:
+/mpd_play <id>: play a song
+/mpd_stop: stop the current song. Unless /mpd_play or /mpd_next are invoked, no more music is played
+/mpd_next [time]: Play the next song after [time] seconds, immediately if omitted.
+
+## Votes:
+This mod integrates with the [vote] mod by rubenwardy (https://github.com/minetest-mods/vote)
+/vote_mpd_next - vote to start next song
+/vote_mpd_play <id> - Vote to play certain sing
+
+## Music credits:
 
 StrangelyBeautifulShort	3:01	0.7
 AvalonShort		2:58	1.4
-eastern_feeling		3:51	1.0
 EtherealShort		3:04	0.7
 FarawayShort		3:05	0.7
-dark_ambiance		0:44	1.0
--> see the [ambience] mod for copyright info, I couldn't find any.
+-> Music from [ambience] mod
+-> Author is Amethystium <http://amethystium.com/>.
+
+eastern_feeling		3:51	1.0
+-> created by Jordach. It can be found in the BFD subgame. License is GPLv3 (license of BFD).
 
 bensound_deepblue	4:48	1.0
 bensound_ofeliasdream	4:59	1.0
@@ -22,4 +41,4 @@ bensound_slowmotion	3:26	1.0
 
 rainymemory		2:10	1.0
 anonnp4014		2:30	1.6
--> (c) Deemo collection (game music collection)
+-> (c) Deemo collection (game music collection)

vote.lua

@@ -0,0 +1,68 @@
+--mpd
+--vote.lua - vote module to change songs
+
+function mpd.vote_play(name, param)
+	id=tonumber(param)
+	if id and id>0 and id<=#mpd.songs then
+		vote.new_vote(name, {
+			description = "Play "..mpd.song_human_readable(id),
+			help = "/yes or /no",
+			duration = 20,
+			perc_needed = 0.4,
+
+			on_result = function(self, result, results)
+				if result == "yes" then
+					minetest.chat_send_all("Vote to play " .. mpd.song_human_readable(id) .. " passed " ..
+							#results.yes .. " to " .. #results.no)
+					mpd.play_song(id)
+				else
+					minetest.chat_send_all("Vote to play " .. mpd.song_human_readable(id) .. " failed " ..
+							#results.yes .. " to " .. #results.no)
+				end
+			end,
+
+			on_vote = function(self, name, value)
+				minetest.chat_send_all(name .. " voted " .. value .. " to '" ..
+						self.description .. "'")
+			end,
+		})
+		return true
+	end
+	return false,"Invalid song ID! See available song IDs using /mpd_list"
+end
+
+minetest.register_chatcommand("vote_mpd_play", {
+	func = mpd.vote_play
+})
+
+function mpd.vote_next(name, param)
+	vote.new_vote(name, {
+		description = "Play next song",
+		help = "/yes or /no",
+		duration = 20,
+		perc_needed = 0.4,
+
+		on_result = function(self, result, results)
+			minetest.chat_send_all(result..dump(results))
+			if result == "yes" then
+				minetest.chat_send_all("Vote to play next song passed " ..
+						#results.yes .. " to " .. #results.no)
+				mpd.next_song()
+			else
+				minetest.chat_send_all("Vote to play next song failed " ..
+						#results.yes .. " to " .. #results.no)
+			end
+		end,
+
+		on_vote = function(self, name, value)
+			minetest.chat_send_all(name .. " voted " .. value .. " to '" ..
+					self.description .. "'")
+		end
+	})
+	return true
+end
+
+minetest.register_chatcommand("vote_mpd_next", {
+	func = mpd.vote_next
+})
+