[Change] Attribute: Callbacks When Properties Change — Works with [Sync] and [ConVar], Priority, and All-Client Firing
[Change] Attribute: Callbacks When Properties Change The attribute invokes a method whenever a property's value changes. It works with any property but is espec…
s&box Component Lifecycle: Exact Execution Order and Internal Guards
s&box Component Lifecycle: Exact Execution Order and Internal Guards Derived directly from and in the s&box engine source. Execution Order **** — Called once wh…
IGameObjectNetworkEvents: StartControl, StopControl, and NetworkOwnerChanged Callbacks
IGameObjectNetworkEvents: Ownership Change Callbacks Implement on a component to receive callbacks when network ownership of the parent changes. Interface Metho…
Particle Effects System
Particle Effects System CPU-simulated, fully controllable particle system for effects like fire, smoke, sparks, and explosions. Architecture The particle system…
Scene.Load and Scene.LoadFromFile: Loading Scenes, DontDestroyOnLoad, and the Loading Sequence
Scene.Load and Scene.LoadFromFile: Loading Scenes Locally loads a scene file into the current scene. This is a local-only operation — it does not bring other cl…
Property Attributes for Editor Inspector
Property Attributes for Editor Inspector Property attributes customize how fields appear and behave in the s&box editor inspector. Organization Attributes Visib…
NetList and NetDictionary: Delta Sync, OnChanged Callbacks, Write Guard, and CanWriteChanges
NetList and NetDictionary: Networked Collections with Delta Sync and are s&box networked collection types for use with . They only send changes (deltas) over th…
Sandbox: Map entities — Door, Button, FuncMover, TriggerPush, TriggerTeleport
Sandbox Map Entities — Door, Button, FuncMover, TriggerPush, TriggerTeleport These components implement interactive map elements. They live in the namespace and…
Input - s&box Gameplay Documentation
Input s&box provides a comprehensive input system that handles keyboard, mouse, and gamepad input. The input system uses named actions defined in your project s…
ISceneLoadingEvents: Async Scene Load Hooks with BeforeLoad, OnLoad, and AfterLoad
ISceneLoadingEvents: Async Scene Load Hooks Implement on a to hook into the scene loading pipeline. The game waits for async tasks to complete before proceeding…
ActionGraph — visual scripting with action nodes, delegates, and C# integration
ActionGraph — Visual Scripting ActionGraph is s&box's visual scripting system. Nodes represent actions or expressions, and links carry values or signals between…
Platform Chat - Built-in Multiplayer Text Chat System
Built-in text chat for multiplayer games. Messages are routed through the host, validated, filtered, and displayed via the standard overlay UI - no game code re…
ISceneStartup: OnHostPreInitialize, OnHostInitialize, OnClientInitialize — Scene Initialization Hooks
ISceneStartup: Scene Initialization Hooks for GameObjectSystems provides callbacks for scene initialization events. It is intended for implementations, not comp…
Scene.Push(), BatchGroup(), FindInPhysics, and FindAllWithTag — Scene Context Management
Scene.Push() and Scene.BatchGroup(): Scene Context Management Scene.Push() makes a scene the active scene for the duration of a scope. This is required when cre…
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…
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: **** — …
RPC Attributes: Rpc.Broadcast, Rpc.Host, Rpc.Owner — Targeting, NetFlags, and Rpc.FilterInclude/Exclude
RPC Attributes: Rpc.Broadcast, Rpc.Host, Rpc.Owner — Targeting and Flags s&box RPCs are declared with nested attributes on the static class. The old top-level a…
Inspector property attributes — Range, Group, ShowIf, Title, Feature, and more
Inspector Property Attributes Attributes control how component properties appear in the s&box editor inspector. Apply them alongside on your component fields to…
PlayerController: Architecture, Ground Detection, Jump System, WishVelocity Sync, and Physics Step Integration
PlayerController: Architecture, Ground Detection, and Jump System is the built-in s&box character movement component. It uses a internally and implements to hoo…
Component Lifecycle: Full Callback Order — OnAwake, OnEnabled, OnStart, OnUpdate, OnFixedUpdate, OnDisabled, OnDestroy
Component Lifecycle: Full Callback Order s&box components have a well-defined lifecycle. Understanding the exact order prevents subtle bugs. Callback Order Key …