Hinsdale Central boys swimming coach Bob Barber chose a basic way to describe the mood of his team at Wednesday’s practice.After the Illinois High School Association approved a plan Tuesday to give the green light for winter sports — besides boys and girl basketball — to resume practice and to be played seven days after the first practice, Barber said his swimmers were happy to be back in the pool.“We were blasting music and cranking out yardage,” Barber said. “We were having fun.”