Make the reverse random shuffle button work infinitely

[poco0317]

In til death you can hold shift and click the random button to go backwards 1 selection. There is not really any reason it is like that.

Also implement this entirely in rebirth

etterna/Themes/Rebirth/BGAnimations/playerInfoFrame/main.lua

Lines 1076 to 1097 in b656600

	InvokeCommand = function(self, params)
	if selectable(self:GetName()) then
	TOOLTIP:Hide()
	local scr = SCREENMAN:GetTopScreen()
	if not params or params and params.event == "DeviceButton_left mouse button" then
	-- full random
	local group = WHEELDATA:GetRandomFolder()
	local song = WHEELDATA:GetRandomSongInFolder(group)
	scr:GetChild("WheelFile"):playcommand("FindSong", {song = song})
	else
	if openedGroup ~= nil and #openedGroup > 0 then
	-- random song in group
	local song = WHEELDATA:GetRandomSongInFolder(openedGroup)
	scr:GetChild("WheelFile"):playcommand("FindSong", {song = song, group = openedGroup})
	else
	-- when not in any group, get a random group
	local group = WHEELDATA:GetRandomFolder()
	scr:GetChild("WheelFile"):playcommand("FindGroup", {group = group})
	end
	end
	end
	end,

etterna/Themes/Rebirth/BGAnimations/ScreenSelectMusic decorations/wheel.lua

Lines 1454 to 1467 in b656600

	MouseDownCommand = function(self, params)
	if not visible then return end
	if params.event == "DeviceButton_left mouse button" then
	if not self:GetParent():GetChild("GroupPage"):IsInvisible() then
	-- left clicking the group header gives a random song in the group
	local song = WHEELDATA:GetRandomSongInFolder(openedGroup)
	self:GetParent():GetParent():GetChild("WheelContainer"):playcommand("FindSong", {song = song, group = openedGroup})
	elseif not self:GetParent():GetChild("MiscPage"):IsInvisible() then
	-- left clicking the normal header gives a random group (???)
	local group = WHEELDATA:GetRandomFolder()
	self:GetParent():GetParent():GetChild("WheelContainer"):playcommand("FindGroup", {group = group})
	end
	end
	end,

etterna/Themes/Til Death/BGAnimations/ScreenSelectMusic overlay/default.lua

Lines 87 to 108 in b656600

	MouseDownCommand = function(self, params)
	if params.event == "DeviceButton_left mouse button" then
	local w = SCREENMAN:GetTopScreen():GetMusicWheel()
	if INPUTFILTER:IsShiftPressed() and self.lastlastrandom ~= nil then
	-- if the last random song wasnt filtered out, we can select it
	-- so end early after jumping to it
	if w:SelectSong(self.lastlastrandom) then
	return
	end
	-- otherwise, just pick a new random song
	end
	local t = w:GetSongs()
	if #t == 0 then return end
	local random_song = t[math.random(#t)]
	w:SelectSong(random_song)
	self.lastlastrandom = self.lastrandom
	self.lastrandom = random_song
	end
	end

etterna/Themes/Til Death/BGAnimations/ScreenSelectMusic overlay/currentsort.lua

Lines 66 to 87 in b656600

	MouseDownCommand = function(self, params)
	if group_rand ~= "" and params.event == "DeviceButton_left mouse button" then
	local w = SCREENMAN:GetTopScreen():GetMusicWheel()
	if INPUTFILTER:IsShiftPressed() and self.lastlastrandom ~= nil then
	-- if the last random song wasnt filtered out, we can select it
	-- so end early after jumping to it
	if w:SelectSong(self.lastlastrandom) then
	return
	end
	-- otherwise, just pick a new random song
	end
	local t = w:GetSongsInGroup(group_rand)
	if #t == 0 then return end
	local random_song = t[math.random(#t)]
	w:SelectSong(random_song)
	self.lastlastrandom = self.lastrandom
	self.lastrandom = random_song
	end
	end,