registry.cs

class Registry : MonoBehaviour {
  // ...
  
  public static void GetNewReceiver(Transmitter transmitter) {
    // If the controller is already controlling a receiver, we'll look for the next
    // free receiver starting above that index. Otherwise, we'll start the search
    // from receiver 0
    int transmitterIdx = Array.IndexOf(_instance.transmitterAssignments, transmitter);
    int nextFreeIndex = NextFreeRecvIdx(transmitterIdx);

    // If there is no free receiver, abort.
    if (nextFreeIndex == -1) return;

    RevokeReceiver(transmitter, transmitterIdx);
    AssignReceiver(transmitter, nextFreeIndex);
  }
}