s&box MCP Knowledgebase

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

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Results for "OnStart()" in terminalCode Example 21 results closeClear
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 18, 2026

Randomized Clothing for NPC Citizens using Dresser.Randomize() on Prefabs

Overview This demonstrates how to create NPC citizen prefabs with randomized clothing using the built-in component. Each time the prefab spawns or is enabled, i…

terminalCode Example
May 10, 2026

Extensible Player Data Save Hooks for World Components

This pattern lets gameplay components plug into a player's save/load flow without putting every feature directly inside one large class. The framework has three…

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 5, 2026

VerletRope — rope physics with attachment, slack, and stiffness

VerletRope simulates rope physics using Verlet integration. The rope hangs from the GameObject's position and optionally attaches its end to another GameObject.…

terminalCode Example
May 3, 2026

WebSockets

Use WebSockets for real-time communication with external servers. Basic Setup With Auth Token Common Use Cases Custom networking — External matchmaking, chat se…

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 4, 2026

Sandbox: Stacker tool — duplicate objects in a line or arc with StackAlignMode

Stacker Tool — Duplicate Objects in a Line or Arc The Stacker tool clones a selected object N times along a configurable axis with optional rotation and gap. It…

terminalCode Example
May 5, 2026

Rendering entities — TextRenderer, LineRenderer, SpriteRenderer, TrailRenderer, and ModelRenderer

Rendering Entities — Text, Line, Sprite, and Trail Renderers s&box provides several lightweight renderer components for common visual needs that don't require a…

terminalCode Example
May 3, 2026

Working with Models and Rendering

Guide to displaying 3D models in s&box. ModelRenderer Component Loading Models SkinnedMeshRenderer (Animated Models) Dynamic Model Creation LODs (Level of Detai…

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

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 5, 2026

Custom GameResource assets — defining asset types with ResourceLibrary and PostLoad registry

Custom GameResource Assets lets you define your own asset types with a custom file extension, inspector UI, and hot-reload support. Assets are JSON files under …

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 10, 2026

s&box JSONObject Save Data Helper for Components

This s&box-focused sample shows how to programmatically construct and deconstruct JSON for component save data. It is useful for player saves, world unlock stat…

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 3, 2026

Rigidbody Physics

The component enables physics simulation on GameObjects. Basic Usage Rigidbody Properties Forces Collision Detection Wake/Sleep Spawn with Velocity

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 4, 2026

Sandbox: ToolMode system — creating custom Tool Gun modes

ToolMode System — Creating Custom Tool Gun Modes is the base class for all Tool Gun tools in Sandbox. Tools are components on the Toolgun and are enabled/disabl…

terminalCode Example
May 4, 2026

Sandbox: NPC system — Schedule, Task, and Layer architecture

NPC System — Schedule, Task, and Layer Architecture The Sandbox NPC system uses a layered architecture: Layers handle continuous behaviours (navigation, senses,…