Roblox pet system: make pets follow the player smoothly
Short answer
Move pets on the client every frame: compute a target position behind the player's HumanoidRootPart for each pet (spread in an arc), add a small sine-wave bob, and lerp each pet's CFrame toward its target with an alpha based on deltaTime so the speed is the same at any frame rate. Ownership and equipping stay on the server.
Copy-paste code
StarterPlayerScripts/PetFollow.client.lua (pets in workspace.Pets[player.Name])
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local player = Players.LocalPlayer
local RADIUS, SPREAD = 5, math.rad(140)
RunService.RenderStepped:Connect(function(dt)
local char = player.Character
local root = char and char:FindFirstChild("HumanoidRootPart")
local folder = workspace:FindFirstChild("Pets") and workspace.Pets:FindFirstChild(player.Name)
if not (root and folder) then return end
local pets = folder:GetChildren()
local alpha = 1 - math.exp(-10 * dt) -- frame-rate independent smoothing
for i, pet in pets do
local t = #pets == 1 and 0.5 or (i - 1) / (#pets - 1)
local angle = -SPREAD / 2 + SPREAD * t
local offset = Vector3.new(math.sin(angle) * RADIUS, 1.5 + math.sin(os.clock() * 2 + i) * 0.3, math.cos(angle) * RADIUS)
local target = root.CFrame * CFrame.new(offset)
pet:PivotTo(pet:GetPivot():Lerp(target, alpha))
end
end)Good to know
Anchor the pet models and turn off CanCollide, so physics never fights the script.
Other players see your pets move only if each client runs the same script for every player's folder, or if the server moves them; client-side for everyone looks smoothest.
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Why do my pets lag behind?
A fixed lerp alpha like 0.1 depends on frame rate. Use 1 - math.exp(-k * dt) as above.
How do pets face the player's direction?
The target uses root.CFrame, so they turn with the player.
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