s&box MCP Knowledgebase

Documentation, API references, code examples and community knowledge for s&box development.

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Results for "onupdate" in terminalCode Example 24 results closeClear
terminalCode Example
May 5, 2026

Async tasks in s&box — coroutines, parallel tasks, and frame-by-frame animation

Async Tasks in s&box Components s&box async tasks run on the main thread — they behave like coroutines. Use to yield one frame, to wait, and to run tasks in par…

terminalCode Example
May 3, 2026

Chat UI Pattern with RPC Broadcasting

Chat UI with RPC Broadcasting A Razor UI component for game chat that handles local input, RPC broadcasting, Steam filtering, and automatic message expiration. …

terminalCode Example
May 3, 2026

Camera and View Control

Working with cameras and player viewpoints in s&box. Main Camera Access Creating a Player Camera First-Person Camera Screen to World Ray World to Screen Camera …

terminalCode Example
May 5, 2026

WorldPanel and ScreenPanel — HUD overlays and 3D world-space UI with Razor PanelComponent

WorldPanel and ScreenPanel — UI in the World s&box UI uses (Razor) attached to either a (HUD overlay) or (3D world-space UI). The same component works with both…

terminalCode Example
May 5, 2026

DebugOverlay — in-game visualization for spheres, lines, text, and traces

DebugOverlay — In-Editor and In-Game Visualization draws shapes, text, and traces in the world for debugging. All draws are temporary and disappear after a spec…

terminalCode Example
May 10, 2026

Reusable World-Space Interaction Prompt Framework

A small, compartmentalized interaction framework can be built from three pieces: : the base component placed on objects the player can use. : the player-side ra…

terminalCode Example
May 5, 2026

BeamEffect — laser and energy beams between two points

BeamEffect — Laser and Energy Beams renders a beam between two points in the world. Use it for lasers, electricity, tractor beams, or any line-based visual effe…

terminalCode Example
May 5, 2026

RadiusDamage — explosion area damage with IDamageable, occlusion, and physics force

RadiusDamage Component is a built-in s&box component that applies damage to all objects within a sphere. It integrates with the system and can apply outward phy…

terminalCode Example
May 5, 2026

Math types — Vector3, Rotation, Angles, Transform, TimeSince, and BBox

Math Types — Vector3, Rotation, Angles, and Transform s&box uses its own math types. Here's a practical reference for the ones you'll use constantly. Vector3 Ro…

terminalCode Example
May 5, 2026

VirtualGrid — efficiently rendering large scrollable lists in s&box UI

VirtualGrid — Efficiently Rendering Large Lists in UI is a s&box UI panel that virtualizes a large collection — only the visible cells are created in the DOM. S…

terminalCode Example
May 3, 2026

Prefab Spawning and Cloning

Prefab Spawning and Cloning Prefabs are reusable GameObject templates that can be instantiated at runtime. Creating Prefabs Create a GameObject in the scene wit…

terminalCode Example
May 5, 2026

Custom editor tools — EditorTool, Gizmo drawing, scene tracing, and overlay UI

Custom Editor Tools Editor tools appear in the s&box toolbar and let you build scene editing workflows — painting, placement, custom gizmos. They must live in a…

terminalCode Example
May 10, 2026

Trigger-Based Background Music Crossfade Framework

This pattern replaces area music with a small local-client music framework. Each zone requests a target , while one controller crossfades the currently playing …

terminalCode Example
May 11, 2026

UIDecal Component - Render Razor UI as a Decal

A Render Component for s&box that allows you to project Razor UI onto surfaces as a Decal. Great for sticking UI onto rounded walls, curved surfaces, or any geo…

terminalCode Example
May 12, 2026

RPC-based chat system with avatars and Steam filtering

RPC-Based Chat System with Avatar Support This example shows a complete chat system using Razor, RPC broadcasting, Steam filtering, and avatar display. Key Feat…

terminalCode Example
May 12, 2026

Slot-based inventory UI with BuildHash optimization

Slot-Based Inventory UI with BuildHash Optimization This example shows a slot-based inventory UI with BuildHash() optimization to prevent unnecessary rebuilds a…

terminalCode Example
May 12, 2026

Drag-and-drop system with static instance pattern

Drag-and-Drop System with Static Instance Pattern This example shows a drag-and-drop system using a static instance pattern for global state management and visu…

terminalCode Example
May 3, 2026

Moving a SceneObject with Transform in s&box

Use to move a SceneObject each frame in s&box. This moves the object forward at 100 units per second. Prefer over direct manipulation of the SceneObject for net…

terminalCode Example
May 12, 2026

IPlayerControllable example: ThrusterEntity

IPlayerControllable Example: ThrusterEntity ThrusterEntity demonstrates how to implement IPlayerControllable for a thruster that responds to player input while …

terminalCode Example
May 3, 2026

Inventory Hotbar UI Component

Inventory HUD with Hotbar A Razor PanelComponent that displays player inventory slots as a hotbar with mouse wheel and number key support. Implementation Key Fe…