Struct ServerPopulatePrespawnedGhostsSystem

Responsible for assigning a unique ghostId to each pre-spawned ghost, and and adding the ghosts to the spawned ghosts maps. Relies on the previous initializations step to determine the subscene subset to process.

Implements
ISystem
ISystemCompilerGenerated
Inherited Members
Namespace: Unity.NetCode
Assembly: Unity.NetCode.dll
Syntax
[WorldSystemFilter(WorldSystemFilterFlags.ServerSimulation, WorldSystemFilterFlags.Default)]
[UpdateInGroup(typeof(PrespawnGhostSystemGroup))]
[UpdateAfter(typeof(PrespawnGhostInitializationSystem))]
[BurstCompile]
public struct ServerPopulatePrespawnedGhostsSystem : ISystem, ISystemCompilerGenerated
Remarks

The server is authoritative and it is responsible for assigning unique id ranges to the each scene. For each section that present prespawn ghosts, the prespawn hash, id range and baseline hash are sent to client as part of the streaming protocol. Clients will use the received subscene hash and baseline hash for validation and the ghost range to assign the ghost id to the pre-spawned ghosts like the server. This remove any necessity for loading order determinism. Finally, clients will ack the server about the loaded scenes and the server, upon ack receipt, will start streaming the pre-spawned ghosts

### The Full Prespawn Subscene Sync Protocol

The Server calculates the prespawn baselines. The Server assigns runtime ghost IDs to the prespawned ghosts. The Server stores the `SubSceneHash`, `BaselineHash`, `FirstGhostId`, and `PrespawnCount` inside the the `PrespawnSceneLoaded` collection. The Server creates a new ghost with a `PrespawnSceneLoaded` buffer that is serialized to the clients.

Methods

OnCreate(ref SystemState)

Declaration
[BurstCompile]
public void OnCreate(ref SystemState state)
Parameters
Type Name Description
SystemState state
See Also

OnCreateForCompiler(ref SystemState)

Declaration
public void OnCreateForCompiler(ref SystemState state)
Parameters
Type Name Description
SystemState state
See Also

OnUpdate(ref SystemState)

Declaration
[BurstCompile]
public void OnUpdate(ref SystemState state)
Parameters
Type Name Description
SystemState state
See Also

Implements

Unity.Entities.ISystem
Unity.Entities.ISystemCompilerGenerated

See Also