I am creating a game but i want to add a Gameover/Youwin screen, i want to start with the winners screen, i have created a world class called WinScreen and i want this world to appear after my character collects all items called "mushrooms", after finding all 15 of them I want an endscreen to appear, i don't, however, know the code for this, i know none of the scoreboard method codes and i only know the mouseclick method for changing worlds, if someone could give me the codes and/or explain it to me, that would be appreciated.

