Function  
 follow
(obj: GameObj | null, offset?: Vec2): FollowCompFollow another game obj's position.
param obj- The game obj to follow.
param offset- The offset to follow at.
const bean = add(...)
add([
    sprite("bag"),
    pos(),
    follow(bean) // Follow bean's position
]);
// Using offset
const target = add(...)
const mark = add([
  sprite("mark"),
  pos(),
  follow(target, vec2(32, 32)) // Follow target's position with an offset
])
mark.follow.offset = vec2(64, 64) // Change the offsetreturns The follow comp.
since v2000.0
group Components