In case you need any help about the story it has occurred to me that the apprentice has a great hidden power and his power source comes from the magic red stone. For example, when the apprentice is near the rock, it begins to shine. It is only my opinion but to do what you want is your project :D
Sorry, I still can't pass the green button so I can't tell.
288 days ago(+1)
@svolozhanin7 Have you tried the Training Demo we just released? That is made with completely new engine so should work for you. Cheers! -din