DJ Playlist

--DJ Playlist by Poppamunz
--This program will loop music discs in a playlist-type fashion.
--Usage:
--Place a turtle next to a disk drive. (Wired modems won't work)
--Place all the music discs you want to loop in the turtle's inventory.
--Run this program on the turtle.

length = {
["C418 - strad"] = 188,
["C418 - 13"] = 178,
["C418 - cat"] = 185,
["C418 - blocks"] = 345,
["C418 - chirp"] = 185,
["C418 - far"] = 174,
["C418 - mall"] = 197,
["C418 - mellohi"] = 96,
["C418 - stal"] = 150,
["C418 - ward"] = 251,
["C418 - 11"] = 71,
["C418 - wait"] = 238,
["portalgun:wantyougone"] = 141,
["portalgun:stillalive"] = 176}

assert(turtle,"Program must be run on a turtle.")

for k,v in pairs(redstone.getSides()) do
    if peripheral.getType(v) == "drive" then
        side = v
        break
    end
end

if side == "left" then
    turtle.turnLeft()
    drive = peripheral.wrap("front")
elseif side == "right" then
    turtle.turnRight()
    drive = peripheral.wrap("front")
elseif side == "back" then
    turtle.turnRight()
    turtle.turnRight()
    drive = peripheral.wrap("front")
elseif side == "top" then
    top = true
    drive = peripheral.wrap("top")
elseif side == "bottom" then
    bottom = true
    drive = peripheral.wrap("bottom")
else
    drive = peripheral.wrap("front")
end

function getItem()
    if top then
        turtle.suckUp()
    elseif bottom then
        turtle.suckDown()
    else
        turtle.suck()
    end
end
function putItem()
    if top then
        turtle.dropUp()
    elseif bottom then
        turtle.dropDown()
    else
        turtle.drop()
    end
end
function getItemToEmptySlot()
    for i=1, 16 do
        if turtle.getItemCount(i) == 0 then
            turtle.select(i)
            getItem()
            break
        end
    end
end
getItemToEmptySlot()
turtle.select(1)
selectedSlot = 1
while true do
    putItem()
    if drive.hasAudio() then
        print("Now playing: ",drive.getAudioTitle())
        drive.playAudio()
        sleep(length[drive.getAudioTitle()])
    end
    getItem()
    if selectedSlot == 16 then
        selectedSlot = 1
    else
        selectedSlot = selectedSlot + 1
    end
    turtle.select(selectedSlot)
end