s&box MCP Knowledgebase

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

library_books 595 entries menu_book 352 Documentation code 133 API Reference terminal 100 Code Example groups 10 Community
Results for "events" in menu_bookDocumentation 65 results closeClear
menu_bookDocumentation
May 4, 2026

Sound.Play and SoundHandle: 3D Audio, Volume, Pitch, Occlusion, UI Sounds, and Dedicated Server Behavior

Sound.Play and SoundHandle: Audio Playback in s&box is the static entry point for audio playback. is the returned handle for controlling a playing sound. Playin…

menu_bookDocumentation
May 4, 2026

SceneAnimationSystem: Threaded Animation, Bone Merge Order, Procedural Bones, and Ragdoll Physics Step

SceneAnimationSystem: Threaded Animation Updates and Bone Merge Order drives all animation updates. It runs at (after , before ). Threading Model Animation upda…

menu_bookDocumentation
May 12, 2026

s&box DamageTags: Damage type constants

DamageTags Static Class DamageTags is a static class that defines constant string tags used for damage type identification in the s&box damage system. These tag…

menu_bookDocumentation
May 5, 2026

Player Controller - s&box Scene Documentation

Player Controller The Player Controller component provides character movement for games. It handles physics-based movement, ground detection, jumping, and camer…

menu_bookDocumentation
May 20, 2026

Component Interfaces: IDamageable, ICollisionListener, ExecuteInEditor

s&box provides several built-in component interfaces for physics, damage, networking, and editor execution. ExecuteInEditor Runs component methods (OnAwake, OnE…

menu_bookDocumentation
May 20, 2026

PlayerController: Physics-Based Character with Events Interface

The component is a physics-based first/third person player controller. Add it to a scene and be running around with no programming required. Core Features Physi…

menu_bookDocumentation
May 20, 2026

NavMesh Links: Custom Agent Traversal with Jump, Ladder, and Physics Examples

NavMesh Links in s&box connect disconnected navigation areas, allowing agents to jump, climb ladders, or traverse gaps. Add a NavMeshLink component to a GameObj…

menu_bookDocumentation
May 20, 2026

ISceneStartup: Host and Client Scene Initialization Events

is a scene event interface for listening to scene initialization on host and client. It runs when pressing play in editor, loading a game, or joining a server. …

menu_bookDocumentation
May 20, 2026

Animation System: Animgraph, Skeletal Animation, IK, and Ragdolls

s&box uses Valve's Animgraph system for character animation, providing a powerful node-based animation state machine. Key Features Animgraph — node-based animat…

menu_bookDocumentation
May 5, 2026

Animation - s&box Documentation

Animation s&box supports skeletal animation for characters and objects. Animate models using imported animations, blend between states, and control playback fro…

menu_bookDocumentation
May 4, 2026

s&box Rigidbody Component: Physics Body Reference

s&box Rigidbody Component: Physics Body Reference adds physics simulation to a . It requires at least one component on the same object. Key Properties Force and…

menu_bookDocumentation
May 20, 2026

UI Style Properties: CSS Reference with Custom Pseudo-Classes and Sound Events

s&box UI styling follows web CSS conventions with some differences. Everything is flex by default. Key custom properties include / for hover/click sounds, , and…

menu_bookDocumentation
May 4, 2026

s&box Hotload System: How Code Reloading Works, SkipHotload, ConVar Persistence, and NetworkObject.OnHotload

s&box Hotload System: How Code Reloading Works s&box supports live code reloading (hotload) without restarting the game. Understanding how it works helps avoid …

menu_bookDocumentation
Jun 16, 2026

Building a Networked Radio System with 3D Audio and Sync

Building a functional, interactive, and multiplayer-compatible radio system in s&box requires coordinating networked replication, local 3D audio handles, extern…

menu_bookDocumentation
May 3, 2026

Component Lifecycle Methods Reference

Component Lifecycle Methods s&box Components have a well-defined lifecycle with specific methods you can override for different phases of initialization and upd…

menu_bookDocumentation
May 5, 2026

Networked Objects - s&box Documentation

Official s&box documentation for Networked Objects and ownership. Networked Objects covers GameObject networking setup and configuration. Ownership determines w…

menu_bookDocumentation
May 3, 2026

Particle Effects System

Particle Effects System CPU-simulated, fully controllable particle system for effects like fire, smoke, sparks, and explosions. Architecture The particle system…

menu_bookDocumentation
May 4, 2026

NetworkObject: Ownership, Proxy State, and Automatic Culling

NetworkObject Ownership, Proxy State, and Culling Derived from in the s&box engine source. Ownership Model Every networked has a (internal) that tracks: **** — …

menu_bookDocumentation
May 3, 2026

Media Support - Video and Audio Codecs

Media Support - Video and Audio Codecs Video and audio codec/format support for playback, streaming, and encoding. Video Codecs Recommendation: Use VP9 or AV1 f…

menu_bookDocumentation
May 3, 2026

Network Ownership System

Network Ownership System Control who simulates and updates networked GameObjects with the ownership system. Ownership Basics Every networked object has an Owner…