SpriteKit：创建基于图块的迷宫

I want to create a game with a maze(not really) in it. The whole map should be surrounded by wall and inside these walls there should be a maze. This maze should be randomly created. On every tile where no wall is placed, the player should be randomly placed. Is there a build in class/function in SpriteKit that can fulfill my requirements or do I need to come up with an algorithm by myself?I want to create a game with a maze(not really)