roblox-input

When to Load

Load for keyboard, mouse, gamepad, touch, motion, or cross-platform action binding. Client-side only. For simulation-affecting input in a Server Authority project, use the Input Action System rather than traditional input events.

Quick Reference

Core events (UserInputService): InputBegan, InputChanged, InputEnded fire as (input: InputObject, gameProcessedEvent: boolean). InputBegan does NOT fire for mouse wheel. Events only fire while the client window is focused.

Prefer ContextActionService over InputBegan for gameplay — free conflict resolution (chat won't steal H) and free mobile buttons:

local CAS = game:GetService("ContextActionService")

local function onAction(name, state, _input)
    if name == "Jump" and state == Enum.UserInputState.Begin then
        humanoid.Jump = true
    end
end