instruction stringlengths 47 104 | output stringlengths 73 2.13k | category stringlengths 5 33 |
|---|---|---|
What are the basic Lua syntax fundamentals including variables, loops, conditionals, and functions? | --create variable--
word = "hello"
or
local word = "hello"
--if else--
if true then
print("1")
elseif false then
print("2")
else
print("3")
end
--while loop--
while true do
print("THIS IS WORKING YAY")
end
--for loop--
for i = 1, 5 do
print("IM PRINTING MANY TIMES")
end
--print--
print("REAL PRINT")
--wait... | Lua things |
How do I work with Roblox objects like parts, players, and instances using Luau? | --change brick color--
game.Workspace.Mypart.BrickColor = BrickColor.new("Black")
--change color through RGB--
game.Workspace.Mypart.Color = Color3.fromRGB(255, 255, 255)
--change brick transparency--
game.Workspace.Mypart.Transparency = 1
--get player name--
game.Players.LocalPlayer.Name
--check if thing exists--
... | Roblox things |
How do I handle UI events like hovering, clicking, and create moving platforms in Roblox? | --Hovering--
script.Parent.MouseEnter:Connect(function()
print("Mouse is hovering above")
end)
--leaving--
script.Parent.MouseLeave:Connect(function()
print("Mouse is no longer hovering")
end)
--clicking--
script.Parent.MouseButton1Click:Connect(function()
print("Button clicked")
end)
game.StarterGui:SetCoreGuiEn... | UI STUFF |
How do I save and load player data using DataStoreService in Roblox? | --Get DataStore service
local DataStoreService = game:GetService("DataStoreService")
local dataStore = DataStoreService:GetDataStore("MyDataStore")
--Save data
local success, err = pcall(function()
dataStore:SetAsync(player.UserId, player.leaderstats.Cash.Value)
end)
--Load data
local success, data = pcall(function(... | DATA STORES (Saving Data) |
How do I use RemoteFunctions to call the server from a client and get a return value in Roblox? | --Create RemoteFunction
local remoteFunction = Instance.new("RemoteFunction")
remoteFunction.Name = "MyRemoteFunction"
remoteFunction.Parent = game.ReplicatedStorage
--Client calls server and waits for response
local result = game.ReplicatedStorage.MyRemoteFunction:InvokeServer("request")
--Server handles the call
ga... | REMOTE FUNCTIONS |
How do I listen to player joining, leaving, and character spawning events in Roblox? | --Player joining
Players.PlayerAdded:Connect(function(player)
print(player.Name .. " joined!")
end)
--Player leaving
Players.PlayerRemoving:Connect(function(player)
print(player.Name .. " left!")
end)
--Character spawning
player.CharacterAdded:Connect(function(character)
print(player.Name .. " spawned!")
end)
--G... | PLAYER EVENTS |
How do I access and modify a player's Humanoid properties like health, speed, and jump power? | --Get Humanoid
local humanoid = character:WaitForChild("Humanoid")
--Change health
humanoid.Health = 100
--Change walk speed
humanoid.WalkSpeed = 16 -- Default is 16
--Change jump power
humanoid.JumpPower = 50 -- Default is 50
--Kill player
humanoid.Health = 0
--OR
humanoid:TakeDamage(25) -- Deals 25 damage
--C... | HUMANOID & CHARACTER |
How do I detect when a player or object touches a part in Roblox, including with debounce? | --Basic touch event
part.Touched:Connect(function(hit)
print("Something touched: " .. hit.Name)
end)
--Touch with player detection
part.Touched:Connect(function(hit)
local character = hit.Parent
local humanoid = character:FindFirstChild("Humanoid")
if humanoid then
print("Player touched: " .. character.Name)
... | TOUCH EVENTS |
How do I create and configure parts with physics properties in Roblox? | --Create a part
local newPart = Instance.new("Part")
newPart.Size = Vector3.new(4, 4, 4)
newPart.Position = Vector3.new(0, 10, 0)
newPart.Anchored = true
newPart.Parent = workspace
--Part properties
part.Anchored = true/false
part.CanCollide = true/false
part.Transparency = 0 -- 0 = visible, 1 = invisible
part.Materi... | PARTS & PHYSICS |
How do I use CFrame to move, rotate, and position parts in Roblox? | --Move part
part.CFrame = CFrame.new(0, 10, 0)
--Rotate part
part.CFrame = CFrame.new(0, 10, 0) * CFrame.Angles(0, math.rad(45), 0)
--Look at a position
part.CFrame = CFrame.new(part.Position, targetPosition)
--Move relative to current position
part.CFrame = part.CFrame * CFrame.new(0, 0, -5) -- Move forward 5 stud... | CFRAME (Position & Rotation) |
How do I create, move, and get the position of a Model in Roblox? | --Create model
local model = Instance.new("Model")
model.Name = "MyModel"
model.Parent = workspace
--Set PrimaryPart (required for movement)
model.PrimaryPart = partInsideModel
--Move model
model:PivotTo(CFrame.new(0, 10, 0))
--Get model position
local pos = model:GetPivot().Position | MODELS |
How do I use TweenService to smoothly animate parts in Roblox? | local TweenService = game:GetService("TweenService")
--Create tween
local tweenInfo = TweenInfo.new(
2, -- Duration (seconds)
Enum.EasingStyle.Linear, -- Easing style
Enum.EasingDirection.Out, -- Easing direction
0, -- Repeat count (-1 = infinite)
false, -- Reverses?
0 -- Delay time
)
local goals = {
Pos... | TWEENING (Smooth Animations) |
How do I create, play, and configure sounds in Roblox? | --Create sound
local sound = Instance.new("Sound")
sound.SoundId = "rbxassetid://1234567890" -- Replace with actual ID
sound.Volume = 1
sound.Parent = workspace
--Play sound
sound:Play()
--Stop sound
sound:Stop()
--Sound properties
sound.Looped = true/false
sound.PlaybackSpeed = 1.0
sound.TimePosition = 0 -- Start... | SOUNDS |
How do I use ParticleEmitter to create particle effects in Roblox? | --Create particle emitter
local particles = Instance.new("ParticleEmitter")
particles.Parent = part
--Particle properties
particles.Rate = 10 -- Particles per second
particles.Lifetime = NumberRange.new(1, 2)
particles.Speed = NumberRange.new(5, 10)
particles.Color = ColorSequence.new(Color3.new(1, 0, 0))
particles.S... | PARTICLES & EFFECTS |
How do I cast a ray and detect what it hits in Roblox? | local rayParams = RaycastParams.new()
rayParams.FilterDescendantsInstances = {workspace}
rayParams.FilterType = Enum.RaycastFilterType.Exclude
--Cast ray
local origin = Vector3.new(0, 10, 0)
local direction = Vector3.new(0, -20, 0)
local result = workspace:Raycast(origin, direction, rayParams)
if result then
print("... | RAYCASTING |
How do I create teams and assign players to them in Roblox? | local Teams = game:GetService("Teams")
--Create team
local team = Instance.new("Team")
team.Name = "Red Team"
team.TeamColor = BrickColor.new("Bright red")
team.AutoAssignable = true
team.Parent = Teams
--Set player team
player.Team = team
player.Neutral = false
--Get players on team
local teamPlayers = team:GetPlay... | TEAMS |
How do I create tools, give them to players, and handle equip/unequip events in Roblox? | --Create tool
local tool = Instance.new("Tool")
tool.Name = "Sword"
tool.Parent = player.Backpack
--Tool equipped
tool.Equipped:Connect(function()
print("Tool equipped!")
end)
--Tool unequipped
tool.Unequipped:Connect(function()
print("Tool unequipped!")
end)
--Give tool to player
local tool = game.ReplicatedStora... | TOOLS |
How do I use BindableEvents to communicate between server-side scripts in Roblox? | --Create bindable event
local bindable = Instance.new("BindableEvent")
bindable.Name = "MyEvent"
bindable.Parent = game.ReplicatedStorage
--Fire event
bindable:Fire("data", 123)
--Connect to event
bindable.Event:Connect(function(data, number)
print("Event fired with: " .. data)
end) | BINDABLE EVENTS |
How do I create and use a ModuleScript in Roblox? | --ModuleScript code
local Module = {}
Module.variable = "Hello"
function Module.myFunction()
print("Function called!")
end
return Module
--Require module in another script
local myModule = require(game.ReplicatedStorage.MyModule)
myModule.myFunction()
print(myModule.variable) | MODULE SCRIPTS |
What math functions are available in Luau for Roblox scripting? | --Random numbers
local random = Random.new()
local num = random:NextInteger(1, 100)
local dec = random:NextNumber(0, 1)
--Math operations
math.abs(-5) -- Returns 5
math.floor(5.7) -- Returns 5
math.ceil(5.2) -- Returns 6
math.sqrt(16) -- Returns 4
math.pow(2, 3) -- Returns 8
math.min(5, 10) -- Returns 5
math.max... | MATH FUNCTIONS |
What string manipulation functions are available in Luau? | --String length
local length = #"Hello" -- Returns 5
--Find substring
local found = string.find("Hello World", "World") -- Returns 7
--Get substring
local sub = string.sub("Hello", 1, 3) -- Returns "Hel"
--Replace
local new = string.gsub("Hello", "l", "x") -- Returns "Hexxo"
--Split
local parts = string.split("... | STRING FUNCTIONS |
What are the common table functions in Luau for managing arrays and dictionaries? | --Create table
local myTable = {"apple", "banana", "orange"}
--Add to table
table.insert(myTable, "grape")
--Remove from table
table.remove(myTable, 1) -- Remove first item
--Find in table
local index = table.find(myTable, "banana") -- Returns index or nil
--Sort table
table.sort(myTable) -- Alphabetical
--Get ... | TABLE FUNCTIONS |
How do I iterate over a dictionary table in Luau? | for key, value in pairs(dict) do
print(key .. ": " .. tostring(value))
end | DICTIONARY ITERATION |
How do I iterate over an array table in Luau using ipairs? | for index, value in ipairs(myTable) do
print(index .. ": " .. value)
end | ARRAY ITERATION |
How do I use time functions and waits in Roblox Luau scripts? | --Wait
task.wait(1) -- Wait 1 second
--Get time
local time = os.time() -- Unix timestamp
local date = os.date() -- Current date string
--Tick (precise time)
local startTime = tick()
-- do stuff
local elapsed = tick() - startTime | TIME & WAIT |
How do I search for and retrieve parts or objects in the Workspace in Roblox? | --Get all parts
local parts = workspace:GetDescendants()
--Find by name
local part = workspace:FindFirstChild("MyPart")
--Find by class
local part = workspace:FindFirstChildWhichIsA("Part")
--Get children
local children = workspace:GetChildren()
--Get bounding box
local cframe, size = model:GetBoundingBox() | WORKSPACE FUNCTIONS |
What are the main Roblox game services and how do I access them? | game:GetService("Players")
game:GetService("Workspace")
game:GetService("ReplicatedStorage")
game:GetService("ServerScriptService")
game:GetService("Lighting")
game:GetService("SoundService")
game:GetService("Teams")
game:GetService("DataStoreService")
game:GetService("TweenService")
game:GetService("RunService")
game:... | GAME SERVICES |
How do I control lighting settings like time of day, fog, and brightness in Roblox? | local Lighting = game:GetService("Lighting")
--Time of day
Lighting.ClockTime = 12 -- Noon (0-24)
--Ambient
Lighting.Ambient = Color3.new(0.5, 0.5, 0.5)
--Brightness
Lighting.Brightness = 2
--Fog
Lighting.FogEnd = 100
Lighting.FogColor = Color3.new(0.8, 0.8, 0.8) | LIGHTING |
How do I run code every frame using RunService in Roblox? | local RunService = game:GetService("RunService")
--Runs every frame (client)
RunService.RenderStepped:Connect(function(deltaTime)
print("Frame time: " .. deltaTime)
end)
--Runs every frame (server)
RunService.Heartbeat:Connect(function(deltaTime)
print("Frame time: " .. deltaTime)
end) | RUN SERVICE (Every Frame) |
How do I create a proximity prompt that players can interact with in Roblox? | --Create proximity prompt
local prompt = Instance.new("ProximityPrompt")
prompt.ObjectText = "Press to interact"
prompt.ActionText = "Open"
prompt.KeyboardKeyCode = Enum.KeyCode.E
prompt.Parent = part
--Triggered event
prompt.Triggered:Connect(function(player)
print(player.Name .. " interacted!")
end) | PROXIMITY PROMPT |
How do I detect mouse clicks on a part using ClickDetector in Roblox? | --Create click detector
local clickDetector = Instance.new("ClickDetector")
clickDetector.MaxActivationDistance = 10
clickDetector.Parent = part
--Mouse click
clickDetector.MouseClick:Connect(function(player)
print(player.Name .. " clicked!")
end)
--Right click
clickDetector.RightMouseClick:Connect(function(player)
... | CLICK DETECTOR |
How do I run a function asynchronously in the background in Roblox? | --Spawn function (runs async)
task.spawn(function()
while true do
print("Running in background")
task.wait(1)
end
end) | SPAWN FUNCTION |
How do I delay the execution of a function by a set number of seconds in Roblox? | --Run after delay
task.delay(3, function()
print("3 seconds later!")
end) | DELAY FUNCTION |
How do I handle errors safely using pcall in Luau? | --Safe function call
local success, result = pcall(function()
return riskyFunction()
end)
if success then
print("Success: " .. result)
else
warn("Error: " .. result)
end | PCALL (Error Handling) |
How do I check the type of a variable in Luau, including Roblox-specific types? | --Check type
type(variable) -- Returns type string
typeof(variable) -- Returns Roblox type
--Type checking examples
type(5) == "number"
type("hello") == "string"
type(true) == "boolean"
type({}) == "table"
type(nil) == "nil"
typeof(part) == "Instance"
typeof(Vector3.new()) == "Vector3"
typeof(CFrame.new()) == "CFra... | TYPE CHECKING |
How do I set and get custom attributes on Instances in Roblox? | local part = Instance.new("Part")
part:SetAttribute("Health", 100)
part:SetAttribute("Speed", 16)
--Get attribute
local health = part:GetAttribute("Health")
--Get all attributes
local attrs = part:GetAttributes() | INSTANCE ATTRIBUTES |
How do I tag objects and retrieve them using CollectionService in Roblox? | local CollectionService = game:GetService("CollectionService")
--Add tag
CollectionService:AddTag(part, "Interactable")
--Get tagged objects
local objects = CollectionService:GetTagged("Interactable")
--Tag added event
CollectionService:GetInstanceAddedSignal("Interactable"):Connect(function(instance)
print("New ob... | COLLECTION SERVICE (Tag System) |
How do I create a ScreenGui with frames, labels, and buttons in Roblox? | --Create ScreenGui
local screenGui = Instance.new("ScreenGui")
screenGui.Parent = player.PlayerGui
--Create Frame
local frame = Instance.new("Frame")
frame.Size = UDim2.new(0, 200, 0, 100)
frame.Position = UDim2.new(0.5, -100, 0.5, -50)
frame.BackgroundColor3 = Color3.new(0.2, 0.2, 0.2)
frame.Parent = screenGui
--Cre... | GUI CREATION |
What are the common properties for configuring GUI elements like UDim2, text, and frames in Roblox? | --UDim2 (size/position)
UDim2.new(0, 100, 0, 50) -- 100 pixels wide, 50 pixels tall
UDim2.new(0.5, 0, 0.5, 0) -- Center of screen
UDim2.new(1, -20, 1, -20) -- Full screen with 10 pixel margin
--Text properties
label.Text = "Hello"
label.TextColor3 = Color3.new(1, 1, 1)
label.TextSize = 24
label.Font = Enum.Font.Got... | GUI PROPERTIES |
How do I add rounded corners and a border stroke to UI elements in Roblox? | --Rounded corners
local corner = Instance.new("UICorner")
corner.CornerRadius = UDim.new(0, 10)
corner.Parent = frame
--Border stroke
local stroke = Instance.new("UIStroke")
stroke.Color = Color3.new(1, 1, 1)
stroke.Thickness = 2
stroke.Parent = frame | UI CORNER & STROKE |
How do I add padding and list/grid layouts to a UI Frame in Roblox? | --Padding
local padding = Instance.new("UIPadding")
padding.PaddingTop = UDim.new(0, 10)
padding.PaddingLeft = UDim.new(0, 10)
padding.Parent = frame
--List layout (vertical)
local listLayout = Instance.new("UIListLayout")
listLayout.Padding = UDim.new(0, 5)
listLayout.Parent = frame
--Grid layout
local gridLayout = ... | UI PADDING & LIST |
How do I create a scrollable frame in Roblox GUI? | local scrollFrame = Instance.new("ScrollingFrame")
scrollFrame.Size = UDim2.new(0, 200, 0, 300)
scrollFrame.CanvasSize = UDim2.new(0, 0, 0, 500) -- Scrollable area
scrollFrame.Parent = screenGui | SCROLLING FRAME |
How do I display an image inside a Roblox GUI using ImageLabel? | local imageLabel = Instance.new("ImageLabel")
imageLabel.Image = "rbxassetid://1234567890"
imageLabel.Size = UDim2.new(0, 100, 0, 100)
imageLabel.Parent = screenGui | IMAGE LABEL |
How do I create a text input field and read player input in Roblox GUI? | local textBox = Instance.new("TextBox")
textBox.Size = UDim2.new(0, 200, 0, 30)
textBox.PlaceholderText = "Type here..."
textBox.Parent = screenGui
--Get text when submitted
textBox.FocusLost:Connect(function(enterPressed)
if enterPressed then
print("Submitted: " .. textBox.Text)
end
end) | TEXTBOX (Input) |
How do I load and play animations on a character in Roblox? | --Load animation on character
local animation = Instance.new("Animation")
animation.AnimationId = "rbxassetid://1234567890"
local animator = humanoid:WaitForChild("Animator")
local track = animator:LoadAnimation(animation)
--Play animation
track:Play()
--Stop animation
track:Stop()
--Animation properties
track.Loop... | ANIMATIONS |
How do I create and configure a SpawnLocation for players in Roblox? | --Create spawn location
local spawn = Instance.new("SpawnLocation")
spawn.Position = Vector3.new(0, 1, 0)
spawn.Anchored = true
spawn.Parent = workspace
--Set as neutral spawn
spawn.Neutral = true
--Set team spawn
spawn.TeamColor = BrickColor.new("Bright red") | SPAWN LOCATION |
How do I build a basic round system with a timer and intermission in Roblox? | local roundDuration = 60 -- seconds
local intermission = 15 -- seconds
local inRound = false
local function startRound()
inRound = true
print("Round started!")
task.wait(roundDuration)
inRound = false
print("Round ended!")
task.wait(intermission)
startRound()
end | ROUND SYSTEM |
How do I create an explosion effect at a position in Roblox? | local explosion = Instance.new("Explosion")
explosion.Position = Vector3.new(0, 10, 0)
explosion.BlastPressure = 100000
explosion.BlastRadius = 10
explosion.DestroyJointRadiusPercent = 0.5
explosion.Parent = workspace | EXPLOSION |
How do I add a highlight glow effect to a part in Roblox? | local highlight = Instance.new("Highlight")
highlight.FillColor = Color3.new(1, 0, 0)
highlight.OutlineColor = Color3.new(1, 1, 1)
highlight.FillTransparency = 0.5
highlight.Parent = part | HIGHLIGHT EFFECT |
How do I add a bloom post-processing effect to the Roblox Lighting? | local bloom = Instance.new("BloomEffect")
bloom.Intensity = 0.5
bloom.Size = 24
bloom.Threshold = 0.9
bloom.Parent = game.Lighting | BLOOM EFFECT |
How do I add a blur effect to the screen in Roblox? | local blur = Instance.new("BlurEffect")
blur.Size = 10
blur.Parent = game.Lighting | BLUR EFFECT |
How do I use ColorCorrectionEffect to adjust the game's color in Roblox? | local colorCorrection = Instance.new("ColorCorrectionEffect")
colorCorrection.Saturation = 0.2
colorCorrection.Contrast = 0.1
colorCorrection.Brightness = 0.05
colorCorrection.Parent = game.Lighting | COLOR CORRECTION |
How do I create an atmosphere with haze and fog in Roblox Lighting? | local atmosphere = Instance.new("Atmosphere")
atmosphere.Density = 0.3
atmosphere.Color = Color3.new(0.8, 0.8, 0.8)
atmosphere.Haze = 2
atmosphere.Parent = game.Lighting | ATMOSPHERE |
How do I control the camera's position, type, and field of view using a LocalScript in Roblox? | local camera = workspace.CurrentCamera
camera.CameraType = Enum.CameraType.Scriptable
camera.CFrame = CFrame.new(0, 50, 50)
camera.FieldOfView = 70 | CAMERA MANIPULATION (LocalScript) |
How do I lerp (linearly interpolate) between two numbers, colors, or vectors in Luau? | local function lerp(a, b, t)
return a + (b - a) * t
end
local function lerpColor(color1, color2, t)
return Color3.new(
lerp(color1.R, color2.R, t),
lerp(color1.G, color2.G, t),
lerp(color1.B, color2.B, t)
)
end
local function lerpVector3(v1, v2, t)
return Vector3.new(
lerp(v1.X, v2.X, t),
lerp(v1.Y, v2.... | LERP (LINEAR INTERPOLATION) |
How do I build a simple inventory system to add, remove, and check items per player in Roblox? | local inventory = {}
local function addItem(player, itemName)
if not inventory[player] then inventory[player] = {} end
table.insert(inventory[player], itemName)
end
local function removeItem(player, itemName)
local inv = inventory[player]
if not inv then return false end
for i, item in ipairs(inv) do
if item =... | INVENTORY SYSTEM |
How do I make an NPC follow a player using MoveTo in Roblox? | local function followPlayer(npc, targetPlayer)
local hrp = npc:FindFirstChild("HumanoidRootPart")
local targetChar = targetPlayer.Character
if not hrp or not targetChar then return end
local targetHrp = targetChar:FindFirstChild("HumanoidRootPart")
if targetHrp then
npc.Humanoid:MoveTo(targetHrp.Position)
end
e... | FOLLOW PLAYER AI |
How do I create a patrolling NPC that moves between waypoints in Roblox? | local waypoints = {Vector3.new(0, 0, 0), Vector3.new(50, 0, 0), Vector3.new(50, 0, 50)}
local currentWaypoint = 1
local function patrol(npc)
while true do
npc.Humanoid:MoveTo(waypoints[currentWaypoint])
npc.Humanoid.MoveToFinished:Wait()
currentWaypoint = currentWaypoint % #waypoints + 1
end
end | PATROL AI |
How do I build a basic shop system where players can buy items using in-game currency in Roblox? | local shopItems = {
{ name = "Sword", price = 100 },
{ name = "Shield", price = 50 },
{ name = "Potion", price = 25 }
}
local function buyItem(player, itemName)
for _, item in ipairs(shopItems) do
if item.name == itemName then
local cash = player.leaderstats.Cash
if cash.Value < item.price then
return ... | SHOP SYSTEM |
How do I create a checkpoint system that tracks and respawns players at their last checkpoint in Roblox? | local checkpoints = {checkpoint1, checkpoint2, checkpoint3}
local playerCheckpoints = {}
local function setupCheckpoint(checkpoint, index)
checkpoint.Touched:Connect(function(hit)
local player = Players:GetPlayerFromCharacter(hit.Parent)
if player then
playerCheckpoints[player] = index
end
end)
end | CHECKPOINT SYSTEM |
How do I make collectible coins that give players cash when touched in Roblox? | local coins = workspace.Coins
for _, coin in ipairs(coins:GetChildren()) do
coin.Touched:Connect(function(hit)
local character = hit.Parent
local humanoid = character:FindFirstChild("Humanoid")
local player = Players:GetPlayerFromCharacter(character)
if humanoid and player then
player.leaderstats.Cash.Valu... | COIN COLLECT SYSTEM |
How do I create a door that opens and closes by rotating its CFrame in Roblox? | local door = workspace.Door
local isOpen = false
local function toggleDoor()
if isOpen then
door.CFrame = door.CFrame * CFrame.Angles(0, math.rad(-90), 0)
else
door.CFrame = door.CFrame * CFrame.Angles(0, math.rad(90), 0)
end
isOpen = not isOpen
end
----DEBRIS SERVICE (Auto-Cleanup)----
local Debris = game:G... | DOOR SYSTEM |
How do I make a part float up and down using a sine wave in Roblox? | local function float(part, height, speed)
local startY = part.Position.Y
task.spawn(function()
while part.Parent do
part.Position = Vector3.new(part.Position.X, startY + math.sin(tick() * speed) * height, part.Position.Z)
task.wait()
end
end)
end | PART FLOAT |
How do I make a part orbit around a center point in Roblox? | local function orbit(part, center, radius, speed)
task.spawn(function()
while part.Parent do
local angle = tick() * speed
local x = center.X + math.cos(angle) * radius
local z = center.Z + math.sin(angle) * radius
part.Position = Vector3.new(x, part.Position.Y, z)
task.wait()
end
end)
end | PART ORBIT |
How do I check the distance between two parts and do something when they are close enough in Roblox? | local distance = (part1.Position - part2.Position).Magnitude
if distance < 10 then
print("Close enough!")
end | DISTANCE CHECK |
How do I create a countdown timer that prints each second in Roblox? | local function countdown(seconds)
for i = seconds, 1, -1 do
print(i)
task.wait(1)
end
print("Time is up!")
end | COUNTDOWN TIMER |
How do I use IntValue, StringValue, and BoolValue objects and detect when their value changes in Roblox? | local intValue = Instance.new("IntValue")
intValue.Value = 100
local stringValue = Instance.new("StringValue")
stringValue.Value = "Hello"
local boolValue = Instance.new("BoolValue")
boolValue.Value = true
intValue.Changed:Connect(function(newValue)
print("Value changed to: " .. newValue)
end) | VALUE OBJECTS |
How do I implement pathfinding service in Roblox Luau? | local PathfindingService = game:GetService("PathfindingService")
local Players = game:GetService("Players")
local npc = workspace.NPC
local humanoid = npc:WaitForChild("Humanoid")
local hrp = npc:WaitForChild("HumanoidRootPart")
local path = PathfindingService:CreatePath({
AgentHeight = 5,
AgentRadius = 2,
... | AI & NPC |
How do I implement pathfinding with obstacle recompute in Roblox Luau? | local PathfindingService = game:GetService("PathfindingService")
local npc = workspace.NPC
local humanoid = npc.Humanoid
local hrp = npc.HumanoidRootPart
local path = PathfindingService:CreatePath({ AgentCanJump = true })
local waypoints = {}
local currentWaypointIndex = 1
local reachedConnection
local function foll... | AI & NPC |
How do I implement oop with metatables in Roblox Luau? | -- Define a class
local Enemy = {}
Enemy.__index = Enemy
function Enemy.new(name, health, damage)
local self = setmetatable({}, Enemy)
self.Name = name
self.Health = health
self.Damage = damage
return self
end
function Enemy:TakeDamage(amount)
self.Health -= amount
print(self.Name .. " too... | OOP & Metatables |
How do I implement oop inheritance in Roblox Luau? | local Animal = {}
Animal.__index = Animal
function Animal.new(name, sound)
return setmetatable({ Name = name, Sound = sound }, Animal)
end
function Animal:Speak()
print(self.Name .. " says " .. self.Sound)
end
-- Subclass
local Dog = setmetatable({}, { __index = Animal })
Dog.__index = Dog
function Dog.new(... | OOP & Metatables |
How do I implement singleton pattern in Roblox Luau? | -- Singleton module (only one instance exists)
local GameManager = {}
GameManager.__index = GameManager
local instance = nil
function GameManager.getInstance()
if not instance then
instance = setmetatable({
round = 0,
isRunning = false,
scores = {}
}, GameManage... | OOP & Metatables |
How do I implement coroutines basics in Roblox Luau? | -- Create a coroutine
local co = coroutine.create(function(a, b)
print("Start:", a, b)
coroutine.yield("first yield")
print("Resumed!")
coroutine.yield("second yield")
print("Done!")
return "finished"
end)
-- Run it step by step
local ok, val = coroutine.resume(co, 10, 20)
print(val) -- "first... | Coroutines |
How do I implement producer-consumer with coroutines in Roblox Luau? | -- Producer generates values, consumer processes them
local function producer()
local items = {"sword", "shield", "potion", "bow"}
for _, item in ipairs(items) do
print("Producing: " .. item)
coroutine.yield(item)
end
end
local function consumer(prod)
while true do
local ok, ite... | Coroutines |
How do I implement network ownership in Roblox Luau? | -- Server script
-- By default server owns all unanchored parts
-- Giving ownership to a player reduces lag for that player
local part = workspace.MovingPart
local Players = game:GetService("Players")
-- Give ownership to specific player
local function giveOwnership(player)
part:SetNetworkOwner(player)
print(... | Networking |
How do I implement streaming enabled handling in Roblox Luau? | -- LocalScript: safely wait for parts to exist with streaming enabled
local function waitForPart(parent, name, timeout)
timeout = timeout or 10
local part = parent:FindFirstChild(name)
if part then return part end
local startTime = tick()
while not part and (tick() - startTime) < timeout do
... | Networking |
How do I implement tween ui elements in Roblox Luau? | local TweenService = game:GetService("TweenService")
local frame = script.Parent -- Frame inside ScreenGui
local button = frame.OpenButton
local tweenInfo = TweenInfo.new(0.4, Enum.EasingStyle.Quart, Enum.EasingDirection.Out)
local openTween = TweenService:Create(frame, tweenInfo, {
Position = UDim2.new(0.5, -1... | UI & GUI |
How do I implement tween button hover effect in Roblox Luau? | local TweenService = game:GetService("TweenService")
local button = script.Parent
local normalSize = UDim2.new(0, 200, 0, 50)
local hoverSize = UDim2.new(0, 210, 0, 55)
local growTween = TweenService:Create(button, TweenInfo.new(0.15), { Size = hoverSize })
local shrinkTween = TweenService:Create(button, TweenInfo.... | UI & GUI |
How do I implement notification ui system in Roblox Luau? | -- LocalScript
local TweenService = game:GetService("TweenService")
local Players = game:GetService("Players")
local player = Players.LocalPlayer
local gui = player.PlayerGui
local function showNotification(message, color)
color = color or Color3.fromRGB(40, 40, 40)
local screenGui = Instance.new("ScreenGui")... | UI & GUI |
How do I implement character appearance & body color in Roblox Luau? | local Players = game:GetService("Players")
local function customizeCharacter(character)
-- Change body colors
local bodyColors = character:FindFirstChild("Body Colors")
if bodyColors then
bodyColors.HeadColor3 = Color3.fromRGB(255, 200, 150)
bodyColors.TorsoColor3 = Color3.fromRGB(0, 1... | Character |
How do I implement give accessory to character in Roblox Luau? | local function giveHat(character, assetId)
local accessory = game:GetService("InsertService"):LoadAsset(assetId)
local hat = accessory:FindFirstChildOfClass("Accessory")
if hat then
hat.Parent = character
end
accessory:Destroy()
end
-- Or create accessory manually
local function createAcces... | Character |
How do I implement resize character in Roblox Luau? | local function resizeCharacter(character, scale)
local humanoid = character:FindFirstChild("Humanoid")
if not humanoid then return end
-- Use HumanoidDescription for proper scaling
local desc = humanoid:GetAppliedDescription()
desc.HeightScale = scale
desc.WidthScale = scale
desc.Depth... | Character |
How do I implement basic server-side anti-cheat in Roblox Luau? | -- Server Script: never trust the client
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local MAX_SPEED = 30 -- studs/sec threshold
local lastPositions = {}
Players.PlayerAdded:Connect(function(player)
player.CharacterAdded:Connect(function(character)
local hr... | Anti-Cheat |
How do I implement validate remoteevent inputs server-side in Roblox Luau? | -- NEVER trust data sent from client
-- Always validate on server
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local buyEvent = ReplicatedStorage:WaitForChild("BuyItem")
local VALID_ITEMS = {
sword = { price = 100, maxBuy = 1 },
potion = { price = 25, maxBuy = 10 }
}
buyEvent.OnServerEven... | Anti-Cheat |
How do I implement datastore with retry logic in Roblox Luau? | local DataStoreService = game:GetService("DataStoreService")
local Players = game:GetService("Players")
local dataStore = DataStoreService:GetDataStore("PlayerData_v2")
local MAX_RETRIES = 3
local RETRY_DELAY = 2
local function safeGet(key)
for attempt = 1, MAX_RETRIES do
local success, result = pcall(fun... | DataStore |
How do I implement nested datastore save structure in Roblox Luau? | -- Save complex nested data (inventory, stats, settings)
local DataStoreService = game:GetService("DataStoreService")
local store = DataStoreService:GetDataStore("PlayerData_v3")
local DEFAULT_DATA = {
stats = {
cash = 0,
gems = 0,
level = 1,
xp = 0,
},
inventory = ... | DataStore |
How do I implement datastore with updateasync (safe concurrent saves) in Roblox Luau? | local DataStoreService = game:GetService("DataStoreService")
local store = DataStoreService:GetDataStore("SafeData")
-- UpdateAsync is safer than SetAsync for concurrent updates
local function addCurrency(userId, amount)
local success, newValue = pcall(function()
return store:UpdateAsync("uid_" .. userId, ... | DataStore |
How do I implement custom signal class in Roblox Luau? | -- A clean Signal implementation (no BindableEvents needed)
local Signal = {}
Signal.__index = Signal
function Signal.new()
return setmetatable({ _listeners = {} }, Signal)
end
function Signal:Connect(callback)
local connection = { callback = callback, connected = true }
table.insert(self._listeners, conn... | Patterns & Signals |
How do I implement viewportframe (3d preview in ui) in Roblox Luau? | -- LocalScript
local Players = game:GetService("Players")
local player = Players.LocalPlayer
local gui = player.PlayerGui
local screenGui = Instance.new("ScreenGui")
screenGui.Parent = gui
-- Create viewport frame
local viewport = Instance.new("ViewportFrame")
viewport.Size = UDim2.new(0, 200, 0, 200)
viewport.Positi... | UI & GUI |
How do I implement surfaceappearance (pbr textures) in Roblox Luau? | -- SurfaceAppearance enables PBR (physically based rendering) textures
local part = workspace.MyPart
local sa = Instance.new("SurfaceAppearance")
-- Color / albedo map
sa.ColorMap = "rbxassetid://111111111"
-- Normal map (surface detail / bumps)
sa.NormalMap = "rbxassetid://222222222"
-- Roughness map (0 = mirror, ... | Visual Effects |
How do I implement simple queue matchmaking system in Roblox Luau? | local Players = game:GetService("Players")
local TeleportService = game:GetService("TeleportService")
local GAME_PLACE_ID = 1234567890
local MIN_PLAYERS = 2
local MAX_PLAYERS = 10
local queue = {}
local function tryStartMatch()
if #queue < MIN_PLAYERS then return end
local batch = {}
for i = 1, math.min... | Game Systems |
How do I implement party system in Roblox Luau? | local Players = game:GetService("Players")
local parties = {} -- { [leaderId] = { leader, members = {} } }
local function createParty(leader)
parties[leader.UserId] = {
leader = leader,
members = { leader }
}
print(leader.Name .. " created a party")
end
local function inviteToParty(leader... | Game Systems |
How do I implement contextactionservice (mobile + keyboard) in Roblox Luau? | -- Works on keyboard AND mobile (creates on-screen button)
local ContextActionService = game:GetService("ContextActionService")
local function onAction(actionName, inputState, inputObject)
if inputState == Enum.UserInputState.Begin then
if actionName == "Sprint" then
print("Sprint started")
... | Input |
How do I implement mobile touch input detection in Roblox Luau? | local UserInputService = game:GetService("UserInputService")
local Players = game:GetService("Players")
local player = Players.LocalPlayer
-- Detect if on mobile
local isMobile = UserInputService.TouchEnabled and not UserInputService.KeyboardEnabled
-- Touch began
UserInputService.TouchStarted:Connect(function(touch,... | Input |
How do I implement billboardgui (floating ui above parts) in Roblox Luau? | -- BillboardGui floats above a part in 3D world space
local part = workspace.NPC
local billboard = Instance.new("BillboardGui")
billboard.Size = UDim2.new(0, 100, 0, 40)
billboard.StudsOffset = Vector3.new(0, 3, 0) -- float 3 studs above part
billboard.AlwaysOnTop = false
billboard.Adornee = part
billboard.Parent = p... | UI & GUI |
How do I implement surfacegui (ui painted on part surface) in Roblox Luau? | -- SurfaceGui renders UI directly on a part's surface
local part = workspace.Screen
local surfaceGui = Instance.new("SurfaceGui")
surfaceGui.Face = Enum.NormalId.Front
surfaceGui.PixelsPerStud = 50
surfaceGui.AlwaysOnTop = false
surfaceGui.Parent = part
local background = Instance.new("Frame")
background.Size = UDim2... | UI & GUI |
How do I implement spring module for smooth camera in Roblox Luau? | -- Spring utility for smooth damped motion
local Spring = {}
Spring.__index = Spring
function Spring.new(initial)
return setmetatable({
position = initial,
velocity = initial * 0,
target = initial,
damping = 10,
speed = 20
}, Spring)
end
function Spring:update(dt)... | Camera & Effects |
How do I implement head bobbing camera effect in Roblox Luau? | -- LocalScript: head bobbing while walking
local RunService = game:GetService("RunService")
local Players = game:GetService("Players")
local player = Players.LocalPlayer
local camera = workspace.CurrentCamera
local bobSpeed = 10
local bobAmount = 0.15
local bobTimer = 0
RunService.RenderStepped:Connect(function(dt)... | Camera & Effects |
How do I implement save player settings with datastore in Roblox Luau? | local DataStoreService = game:GetService("DataStoreService")
local Players = game:GetService("Players")
local settingsStore = DataStoreService:GetDataStore("PlayerSettings")
local DEFAULT_SETTINGS = {
musicVolume = 0.5,
sfxVolume = 1.0,
showHints = true,
quality = "High"
}
local playerSettings... | DataStore |
How do I implement hitbox combat system in Roblox Luau? | -- Server Script
local Players = game:GetService("Players")
local function getHumanoid(part)
local char = part.Parent
return char:FindFirstChild("Humanoid"), char
end
local function createHitbox(attacker, size, offset, damage, duration)
local hrp = attacker.Character and attacker.Character:FindFirstChild(... | Combat |
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