------------------------------------------------------------------------

  ####   #####    ####      #    #       ######  #####    ####
 #       #    #  #    #     #    #       #       #    #  #
  ####   #    #  #    #     #    #       #####   #    #   ####
      #  #####   #    #     #    #       #       #####        #
 #    #  #       #    #     #    #       #       #   #   #    #
  ####   #        ####      #    ######  ######  #    #   ####

- When falling nodes are returned, should probably raycast from the
  player outward to make it possible to sanely contain falling_node
  ents within a "portal room".

- Do "bump up" logic on return from skyrealm, same as travel to?

- Add a recipe to destroy portals.
	- Maybe keep a global list somewhere and require that there
	  be at least one remaining to each block?

------------------------------------------------------------------------
