Play & Fade Out Audio Object

[Potatofactory]

I've been working on some networking that once a player has started this activity we will begin piping in music using sound.PlayURL()

[B][U]Server-Side:[/U][/B]

[B]To Play Song:[/B]

net.Start( "SetupAmbient" )
	net.WriteBool( true )
	net.WriteSting( "http://media.soundcloud.com/stream/jwxK3NYUGF2a.mp3" ) -- Placeholder Song
net.Send( ply )

[B]To Fadeout Song:[/B]

net.Start( "SetupAmbient" )
	net.WriteBool( false )
	net.WriteSting( "http://media.soundcloud.com/stream/jwxK3NYUGF2a.mp3" ) -- Placeholder Song
net.Send( ply )

[B][U]Client-Side:[/U][/B]

[B]To Initialize The Song:[/B]

net.Receive( "SetupAmbient", function( length )
	URL = net.ReadString()
	START = net.ReadBool()
	sound.PlayURL( URL, "mono", function( audio_obj )
		audio_obj:Play()
	end )
end )

However, It's impossible to fadeout the song without creating a new audio object and running sound.PlayURL() again

[Splerge]

isn't it net.WriteString? not net.WriteSting

[Mista Tea]

You need to [B]read [/B]the net message arguments in the[B] same order[/B] that you [B]write [/B]them.
Right now you're writing a bool/string but reading a string/bool. Make them consistent.

This isn't a great example, but the idea is to just store the IGModAudioChannel that gets passed when you use sound.PlayURL into a table, allowing you to use it later.

-- need a table with a persistent scope, doesn't need to be global
-- just don't make it local unless you will never modify the containing file while the server is running
channels = channels or {}

net.Receive( "SetupAmbient", function( length )
    local URL = net.ReadString() -- make sure you localize your variables unless you are using them elsewhere in your code
    local START = net.ReadBool()
    
    if ( START ) then
        sound.PlayURL( URL, "mono", function( audio_obj )
            if ( !IsValid( audio_obj ) ) then return end -- bad URL, audio format, etc
            
            -- if you try to play the sound again, but it's already playing, stop it
            if ( IsValid( channels[ URL ] ) ) then 
                channels[ URL ]:Stop()
            end
            
            -- store the channel so we can access it later
            channels[ URL ] = audio_obj
        end )
    else
        -- timer or hook to decrement audio_obj's volume over time
        -- access the channel again using:
        -- channels[ URL ]
    end
end )

[Chessnut]

Just make a timer and change the volume to it approaches 0 over time.