slopsb

Server side script builder. Run Lua in a sandboxed environment.

Type a prefix followed by your code into the bar and press enter. Input without a valid prefix will not run, it will tell you to use one. Output shows in the console above the bar. When a script runs you get "attempting to run", then "script ran successfully" in green or "script failed to run" in red with the error.

The environment is sandboxed. Most of game is available, but anything built to harm the server or other players (kicking, shutting down, teleporting people out) is blocked. Instances you reach are wrapped so they stay inside the sandbox.

This page only covers what slopsb adds on top of Lua. Anything that is already part of the normal Roblox environment still works even if it is not listed here, for example Instance, Vector3, CFrame, Enum, task, math, string, table, game, workspace and so on.

Prefixes and commands

Prefix	What it does
c/	Run code on the server (alias s/ code/)
lua/	Run code on the server
nls/	Run as a LocalScript on your client (alias local/ client/)
ns/	Run as a server Script (alias server/ script/)
to/	Run on another player, with their permission
print/	Print the text after it
warn/	Warn the text after it
loop/	Run code on a loop, stop with stoploop
repeat/	Run code a set number of times
delay/	Run code after a delay
clear	Clear the console (alias cls)
help	List commands

print / warn

print(...)

Writes to the console, arguments joined by spaces. warn is the same in a different colour.

Example

local p = owner.Character.HumanoidRootPart
print("at", p.Position)
warn("watch out")

printf / warnf / repr

repr(value)

Returns a readable string of any value. Tables show their contents instead of a memory address. printf and warnf print and warn through repr.

Example

local t = {hp = 100, items = {"sword", "key"}}
print(repr(t))
printf("loaded", t)

printidentity

printidentity(prefix?)

Prints the thread identity to the console. Takes an optional prefix.

Example

printidentity()
printidentity("my identity:")

NS

NS(source, parent?)

Runs source as a server Script. Parent defaults to Workspace. print and warn inside it come back to your console. Alias NewScript.

Example

NS([[
    for i = 1, 5 do
        print("server tick", i)
        wait(1)
    end
]])

NLS

NLS(source, parent?, ...)

Runs source as a LocalScript. Parent defaults to your PlayerGui. Extra arguments pass to the script as varargs. Targeting another player asks them first. Alias NewLocalScript.

Run on yourself

NLS([[
    local gui = Instance.new("ScreenGui")
    local t = Instance.new("TextLabel", gui)
    t.Size = UDim2.new(0, 200, 0, 50)
    t.Text = "hi"
    gui.Parent = game.Players.LocalPlayer.PlayerGui
]])

Pass arguments

NLS([[
    local msg = ...
    print(msg)
]], nil, "hello")

NMS

NMS(source)

Returns a module from the given source. require it to run the source once and get back whatever it returns, the same as requiring a ModuleScript. Roblox does not let in-game code set a real ModuleScript's source, so this is a module object rather than an instance. Alias NewModuleScript.

Example

local m = NMS([[
    return {
        greet = function(name) return "hi " .. name end
    }
]])
local lib = require(m)
print(lib.greet("world"))

require

require(module)

Requires a ModuleScript instance. Requiring assets by id is blocked for non-whitelisted users. Use LoadAssets for meshes and models.

Example

require(assetId).module("username")

LoadAssets

LoadAssets(id)

Loads an asset owned by the game account, strips any scripts, returns a loader. Use it for meshes, rigs and models.

Loader methods

:Get(name)        clone of one asset
:Exists(name)     true if present
:GetNames()       list of names
:GetArray()       clones of all
:GetDictionary()  { name = clone }

Example

local assets = LoadAssets(yourid)
local whatevername = assets:Get("whatevername")
whatevername.Parent = workspace

LoadLibrary

LoadLibrary was removed from Roblox a long time ago. This is a re-implementation included only in case a script needs it. You usually do not need it, prefer Instance.new and the modern APIs.

LoadLibrary(name)

Loads a built in library. Available: RbxUtility, RbxGui, RbxStamper.

RbxUtility.Create

local RbxUtility = LoadLibrary("RbxUtility")
local Create = RbxUtility.Create

local part = Create("Part"){
    Anchored = true,
    Size = Vector3.new(4, 1, 4),
    Position = root.Position + Vector3.new(0, 5, 0),
    Parent = workspace,
}

See what a library has

print(repr(LoadLibrary("RbxGui")))

OnChat

OnChat(callback)

Runs your callback whenever you chat, with the message as the argument. Lets a script make its own chat commands. Only listens to you, the owner. Returns the connection so you can disconnect it.

Example

OnChat(function(msg)
    if msg == "!heal" then
        humanoid.Health = humanoid.MaxHealth
    elseif msg:sub(1, 7) == "!speed " then
        humanoid.WalkSpeed = tonumber(msg:sub(8)) or 16
    end
end)

OnRespawn

OnRespawn(callback)

Runs your callback each time your character respawns, with the new character as the argument. Lets a script keep working after you die. Only fires for you, the owner. Returns the connection.

Example

OnRespawn(function(character)
    local hum = character:WaitForChild("Humanoid")
    hum.WalkSpeed = 50
    hum.JumpPower = 100
end)

Saved scripts

Save scripts under a name and they stay forever until you delete them. Open the saved list with the Saved button to Run, View or Delete each one.

Command	What it does
savescript/name/code	Save code under a name
deletesave/name	Delete a saved script
savedscripts	List your saved scripts
sharescript/player/name	Share one with a player to run, they cannot see the source

savescript/name/code

The first slash splits the name from the code. The code can contain slashes.

Example

savescript/speed/c/ humanoid.WalkSpeed = 50

g/ commands

Command	What it does
g/r	Respawn (alias g/respawn)
g/rj	Rejoin the same server (alias g/rejoin)
g/nog	Remove GUIs (alias g/removeguis)
g/fixcam	Reset the camera (alias g/resetcam)
g/ns	Disable scripts (alias g/noscripts)
g/sns	Disable server scripts
g/me	Your info (alias g/whoami)
g/pos	Your position
g/health	Your health and speed (alias g/hp)
g/ping	Your ping
g/players	List players (alias g/plrs)
g/server	Server info (alias g/serverinfo)
g/scripts	Count your scripts (alias g/myscripts)
g/btools	Get building tools
g/version	Version
g/help	List commands (alias g/cmds g/commands)

Settings

Open with the Settings button. Options apply for your session.

Setting	What it does
Show timestamps	Prefix each line with the time
Show FPS counter	Show or hide the FPS label
Auto-scroll	Jump to newest output, or stay put
Hide status messages	Hide the attempting / ran lines
Clear console on run	Wipe the console before each run
Text size	Output text size
Max output lines	How many lines to keep

Variables

owner, script

owner is the player who ran the code. owner.Character, owner.PlayerGui and so on work.

Example

print(owner.Name, owner.UserId)
owner.Character.Humanoid.WalkSpeed = 50

char, root, humanoid, head, torso

Shortcuts to your own character parts. char is the model, root is the HumanoidRootPart, humanoid is the Humanoid. nil if you have no character.

Example

if root then
    root.CFrame = root.CFrame + Vector3.new(0, 10, 0)
end
humanoid.JumpPower = 100