Struct GhostSpawnClassificationSystem
The default GhostSpawnClassificationSystem will set the SpawnType to the default specified in the GhostAuthoringComponent, unless some other classification has already set the SpawnType. This system will also check ghost owner to set the spawn type correctly for owner predicted ghosts. For predictive spawning you usually add a system after GhostSpawnClassificationSystem which only looks at items with SpawnType set to Predicted and set the PredictedSpawnEntity if you find a matching entity. The reason to put predictive spawn systems after the default is so the owner predicted logic has run.
Implements
Inherited Members
Namespace: Unity.NetCode
Assembly: Unity.NetCode.dll
Syntax
[WorldSystemFilter(WorldSystemFilterFlags.ClientSimulation, WorldSystemFilterFlags.Default)]
[UpdateInGroup(typeof(GhostSpawnClassificationSystemGroup))]
[CreateAfter(typeof(GhostCollectionSystem))]
[CreateAfter(typeof(GhostReceiveSystem))]
[BurstCompile]
public struct GhostSpawnClassificationSystem : ISystem, ISystemCompilerGeneratedMethods
OnCreate(ref SystemState)
Called when this system is created.
Declaration
[BurstCompile]
public void OnCreate(ref SystemState state)Parameters
| Type | Name | Description |
|---|---|---|
| SystemState | state | The Unity.Entities.SystemState backing this system instance |
Remarks
Implement an OnCreate function to set up system resources when it is created.
OnCreate is invoked before the the first time Unity.Entities.ISystemStartStop.OnStartRunning(ref Unity.Entities.SystemState)
and Unity.Entities.ISystem.OnUpdate(ref Unity.Entities.SystemState) are invoked.
OnCreateForCompiler(ref SystemState)
Generated by compilation pipeline and used internally.
Declaration
public void OnCreateForCompiler(ref SystemState state)Parameters
| Type | Name | Description |
|---|---|---|
| SystemState | state | The Unity.Entities.SystemState backing this system instance |
OnUpdate(ref SystemState)
Implement OnUpdate to perform the major work of this system.
Declaration
[BurstCompile]
public void OnUpdate(ref SystemState state)Parameters
| Type | Name | Description |
|---|---|---|
| SystemState | state | The Unity.Entities.SystemState backing this system instance |
Remarks
By default, the system invokes `OnUpdate` once every frame on the main thread. To skip OnUpdate if all of the system's [EntityQueries] are empty, use the [RequireMatchingQueriesForUpdateAttribute]. To limit when OnUpdate is invoked, you can specify components that must exist, or queries that match specific Entities. To do this, call Unity.Entities.SystemState.RequireForUpdate<T>() or Unity.Entities.SystemState.RequireForUpdate(Unity.Entities.EntityQuery) in the system's OnCreate method. For more information, see Unity.Entities.SystemState.ShouldRunSystem().
You can instantiate and schedule an Unity.Entities.IJobChunk instance; you can use the [C# Job System] or you can perform work on the main thread. If you call Unity.Entities.EntityManager methods that perform structural changes on the main thread, be sure to arrange the system order to minimize the performance impact of the resulting [sync points].
[sync points]: xref:concepts-structural-changes
[C# Job System]: https://docs.unity.cn/Manual/JobSystem.html
[EntityQueries]: xref:Unity.Entities.EntityQuery
[RequireMatchingQueriesForUpdateAttribute]: xref:Unity.Entities.RequireMatchingQueriesForUpdateAttribute