Random TP

[SirmittensI]

Hey, I am trying to make a /trp command which will teleport you anywhere within 10k blocks of spawn.
Here is what I have

command /tpr:
    description: Teleports you to a random area in your world
    permission: dh.tpr
    permission message:&cYou are unable to use this command
    trigger:
        set {_x} to a random integer between -9000 and 9000
        set {_y} to 30
        set {_z} to a random integer between -9000 and 9000
        set {_world} to "Survival"
        send "Teleporting you to %{_location}%" to player
        set {_location} to location at {_x}, {_y}, {_z} in world {_world}
        teleport the player to {_location}
        wait 5 ticks
        make player run cmd "top" as op

For the most part, everything works except for

set {_location} to location at {_x}, {_y}, {_z} in world {_world}

Wich returns <none>

 

[Phuple]

You can use the inbuilt Location function

teleport player to location({_x}, {_y}, {_z}, player's world)