Sophisticated Backpacks

Features

• Added advanced jukebox upgrade
  • Has multiple slots that can hold music discs and plays them one by one
  • Has controls to go skip between discs played
  • Allows playing discs in random order by using Shuffle toggle
  • Allows repeating all or the current disc played
  • Mobs that spawn with jukebox in their backpack will now sometimes have an advanced one with possibly more than one disc in them