Shoot arrow from loc at nearest player

[NonicPvP]

Hello. I can't get this to work, and you are allowed to change what I currently have or you can make a completely new skript for this to work.

command /turrettest:
    trigger:
        shoot an arrow from {blueturret.1} at speed 1 nearest player
command /settheturretblue:
    trigger:
        set {blueturret.1} to player's location

So I need an arrow to be shot from block at location {blueturret.1} at speed 1 towards the nearest player to the block at {blueturret.1}, but I don't know how to do it.
If you know how, please tell me by leaving a working code! <3 thanks
[doublepost=1549046909,1548875974][/doublepost]bump

 

[TPGamesNL]

try

command /turrettest:
    trigger:
        loop players in world of {blueturret.1}:
            set {_d::%loop-value%} to distance between loop-value and {blueturret.1}
        set {_l::*} to sorted {_d::*}
        set {_p} to {_l::1}
        {_p} is set
        set {_v} to vector from {blueturret.1} to location of {_p}
        set vector length of {_v} to 1
        shoot an arrow from {blueturret.1} {_v}
command /settheturretblue:
    trigger:
        set {blueturret.1} to player's location