z(z: number): ZComp

Determines the draw order for objects on the same layer. Object will be drawn on top if z value is bigger.

const bean = add([
   sprite("bean"),
   pos(100, 100),
   z(10), // Bean has a z value of 10
])

// Mark has a z value of 20, so he will always be drawn on top of bean
const mark = add([
  sprite("mark"),
  pos(100, 100),
  z(20),
])

bean.z = 30 // Bean now has a higher z value, so it will be drawn on top of mark