Roblox Input

When to Load

Touch, gamepad, keyboard, mouse or motion input, on-screen action buttons, cross-platform binding. Client-only; Server Authority simulation input uses the Input Action System.

Quick Reference

• Events: InputBegan/Changed/Ended give (input, gameProcessedEvent); filter it for gameplay. Wheel fires only InputChanged.
• Bindings: prefer ContextActionService:BindAction(name, handler, touchButton, ...keys); gate on state (touch is KeyCode.Unknown); stack order, so BindActionAtPriority. Server Authority: InputAction/InputContext + RunService:BindToSimulation() (needs Workspace.UseFixedSimulation).
• Mobile first, hybrid aware: show controls from UserInputService.PreferredInput (Enum.PreferredInput), observed with GetPropertyChangedSignal, not from TouchEnabled cached once.
• Touch action buttons: fire only for touches that began on the button; camera drags across it never fire. Place from the measured jump button under PlayerGui.TouchGui; clear the thumbstick zone.
• Gate gameplay: block attacks while a game window is open, a TextBox is focused, GuiService.MenuIsOpen, or GuiService.SelectedObject is set.
• Cancel is not release: holds cancel on window open, Cancel, unequip, focus loss, input switch or pad disconnect.
• Gamepad tools: default controls bind ButtonR2 through BindActivate; Tool.ManualActivationOnly = true disables it. Aim from the screen center on gamepad, not GetMouseLocation().
• Hints: GetStringForKeyCode(key, Enum.KeyCodeStringFormat.Abbreviated), GetImageForKeyCode, or InputActionLabel; never hardcode Xbox names.
• Test: Device Simulator + Controller Emulator; menu focus is in roblox-gui.

Details: references/full.md