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 "physics" 167 results closeClear
codeAPI Reference
May 3, 2026

ToolMode SelectionPoint and Trace Helpers

ToolMode.SelectionPoint and Trace Helpers Helper methods and data structures for toolgun selection and placement. SelectionPoint Struct Trace Methods Placement …

menu_bookDocumentation
May 5, 2026

Explore the Engine - s&box Documentation

Explore the Engine Learn how s&box works by exploring the testbed and understanding the core concepts. Play Testbed Start s&box (not the editor) and find the ga…

menu_bookDocumentation
May 5, 2026

Mapping - s&box Editor Documentation

Mapping s&box includes Hammer, the Source 2 level editor, for creating maps and environments. Build worlds with brushes, props, lighting, and gameplay entities.…

menu_bookDocumentation
May 4, 2026

GameObjectFlags: DontDestroyOnLoad, NotNetworked, Absolute, and Destroy vs DestroyImmediate

GameObjectFlags: Controlling GameObject Behavior is a flags enum that controls special behaviors for GameObjects. Values Usage ```csharp // Survive scene loads …

codeAPI Reference
May 12, 2026

TraceAttackInfo record struct

TraceAttackInfo Record Struct Information about a trace-based attack in s&box, used to pass attack data through the weapon system. Properties Target () - The Ga…

terminalCode Example
May 12, 2026

ControlSystem: Vehicle seat control with IPlayerControllable

ControlSystem: Vehicle Seat Control with IPlayerControllable This example shows the ControlSystem which manages vehicle seat control, sorting seats by occupatio…

menu_bookDocumentation
May 4, 2026

DamageInfo: The Standard Damage Payload — Properties, Usage, and Custom Types

DamageInfo: The Standard Damage Payload is a class (not a struct) used to pass damage information between game systems. It is intentionally a class so games can…

menu_bookDocumentation
May 4, 2026

Scene Tick Order: Full Frame Pipeline — FixedUpdate, Update, PreRender, ProcessDeletes, and Stage Hooks

Scene Tick Order: The Full Frame Pipeline Understanding the exact order of operations in a scene tick is critical for writing correct game logic. Game Tick Orde…

terminalCode Example
May 4, 2026

Sandbox: BaseConstraintToolMode — two-stage constraint creation with IToolActionEvents

BaseConstraintToolMode — Two-Stage Constraint Creation Pattern is the base for all two-point constraint tools (Weld, Rope, BallSocket, Elastic, Hydraulic, NoCol…

menu_bookDocumentation
May 5, 2026

GameObjectSystem — scene-wide systems with stage-ordered execution and static access

GameObjectSystem — Scene-Wide Systems is a base class for scene-level systems that need to run at specific points in the frame — before or after physics, render…

codeAPI Reference
May 4, 2026

s&box Game Static Class: Core Game State and Operations

s&box Game Static Class: Core Game State and Operations The static class provides global access to core game state, utilities, and operations. Scene Management …

menu_bookDocumentation
May 4, 2026

Engine Frame Loop Order: FrameStart, Scene Tick, and FrameEnd Sequence

Engine Frame Loop Order The s&box engine frame loop runs in a specific order each frame. Understanding this is important for knowing when your code runs relativ…

groupsCommunity
May 5, 2026

Scene setup checklist — minimum viable scene with lighting, post-processing, and physics

Scene Setup Checklist for New Projects A quick reference for the components every new s&box scene typically needs. Minimum Viable Scene Lighting Post-Processing…

terminalCode Example
May 3, 2026

ControlSystem Pattern for Seat/Vehicle Control

ControlSystem - Seat/Vehicle Control Management A that manages control transfer between players and seated entities (vehicles, chairs). Handles input routing an…

menu_bookDocumentation
May 5, 2026

Execution Order - s&box Documentation

Execution Order Understanding the order in which component methods are called. Flowchart Component lifecycle follows a specific order: Constructor — Object crea…

menu_bookDocumentation
May 5, 2026

Network Events - s&box Networking Documentation

Network Events Network events allow you to broadcast and listen for events across the network. Unlike RPCs which target specific objects, network events are glo…

menu_bookDocumentation
May 5, 2026

NavMesh Agent - s&box Gameplay Documentation

NavMesh Agent The NavMeshAgent component provides automatic navigation along the NavMesh. It handles pathfinding, obstacle avoidance, and smooth movement to tar…

codeAPI Reference
May 3, 2026

BasePickup with ITriggerListener and ICollisionListener

BasePickup Abstract Class Abstract base for item pickups using trigger and collision detection with host-only consumption. Key Patterns **** — trigger volume pi…

menu_bookDocumentation
May 5, 2026

Connection Permissions - s&box Networking Documentation

Connection Permissions Connection permissions control what clients can do in your multiplayer game. Set permissions for spawning objects, using tools, or perfor…

menu_bookDocumentation
May 5, 2026

Custom Editors - s&box Editor Documentation

Custom Editors Custom editors let you create specialized inspector interfaces for your components and assets. Build custom widgets, property drawers, and full i…