command /test:
  trigger:
    set {location} to head location of player
    set {yaw} to yaw of location
    set {pitch} to pitch of location
    set {rotation} to vector from yaw {yaw} and pitch {pitch}
    loop 10 times:
      set {location} to {location} ~ {rotation}
      play ender signal at {location}
      wait 5 ticks