Nets and Barclays Center employees are getting the same checks they would have if they’d worked events as scheduled through the end of May. And it’s not just NBA games, but concerts, Islanders games, college basketball like the A-10 tourney and even graduations. A source familiar with the unions and the overall process told The Post the checks cut could end up totaling an estimated $6 million. Barclays Center also donated 10,000 pounds of food from the arena to City Harvest, the city’s biggest food bank. (The arena’s food and beverage partner Levy helped facilitate the donation).