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…
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…
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…
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…
[Sync] Attribute: SyncFlags.FromHost, SyncFlags.Interpolate, SyncFlags.Query — How Property Sync Works
[Sync] Attribute: SyncFlags and How Property Synchronization Works The attribute marks a component property for automatic network synchronization from the owner…
s&box Input System: Down, Pressed, Released, AnalogLook, AnalogMove, Input Contexts, and Suppression
s&box Input System: Actions, Contexts, and How Input State Works The s&box static class provides all player input querying. Actions are defined in the project's…
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 …
SpawnPoint and TriggerHurt — spawn locations and damage trigger volumes
SpawnPoint and TriggerHurt in s&box SpawnPoint is a built-in s&box component that marks a world location for player or NPC spawning. uses to find valid spawn lo…
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…
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…
s&box Hints GameObjectSystem: UI hint queue
Hints GameObjectSystem Example Hints is a GameObjectSystem that manages the display of timed popup hints in the UI. It queues hints with delays and displays the…
Network Visibility Culling: AlwaysTransmit, INetworkVisible, CullDelay, and PVS-Based Object Culling
Network Visibility Culling: How s&box Decides What to Send to Each Client s&box has a built-in network visibility culling system that avoids sending updates for…
Sandbox: ControlSystem — vehicle seat and contraption control with IPlayerControllable
ControlSystem — Vehicle Seat and Contraption Control is a that drives components on contraptions. When a player sits in a , the system walks the connected contr…
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 …
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…
s&box CharacterController: Physics-Free Movement Component
s&box CharacterController: Physics-Free Movement Component provides collision-constrained movement without a . It only moves when you explicitly call or . Key P…
Sync Properties for Networked State
Sync Properties for Multiplayer The attribute automatically synchronizes property values to all clients when they change. Basic Sync Sync Flags Customize sync b…
Sync Properties - Complete Networking Guide
Sync Properties Sync Attribute Adding the attribute to a property on a Component will have its latest value sent to other players each time it changes. These pr…
MainThread.Queue: Running Code on the Main Thread from Worker Threads
MainThread.Queue: Running Code on the Main Thread from Worker Threads s&box is single-threaded for game logic. If you have code running on a worker thread (e.g.…
s&box ISceneEvent: Scene-Wide and Per-Object Event Broadcasting
s&box ISceneEvent<T>: Scene-Wide and Per-Object Event Broadcasting is the base interface for all scene event systems. It provides static methods for broadcastin…