Object Pooling

v1.0
View as Markdown

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Workflow

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Collision Debug View
Collision Debug View

Integration Tips

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Setup

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 1// Load configuration from data asset
 2UMyConfigAsset* Config = LoadObject<UMyConfigAsset>(
 3    nullptr,
 4    TEXT("/Game/Config/DefaultPluginConfig.DefaultPluginConfig")
 5);
 6
 7if (Config)
 8{
 9    Settings.MaxPoolSize = Config->MaxPoolSize;
10    Settings.TickRate = Config->TickRate;
11    Settings.bEnableDebugDraw = Config->bEnableDebugDraw;
12    Settings.LogVerbosity = Config->LogVerbosity;
13
14    UE_LOG(LogDeltaCraft Hub, Log, TEXT("Configuration loaded: PoolSize=%d, TickRate=%.2f"),
15        Settings.MaxPoolSize, Settings.TickRate);
16}

Verification

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Quick Start

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Component Details Settings
Component Details Settings

Prerequisites

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 1; DefaultEngine.ini
 2[/Script/DeltaCraft Hub.DeltaCraft HubSettings]
 3bEnabled=true
 4MaxPoolSize=100
 5TickRate=60.0
 6LogVerbosity=Warning
 7bEnableDebugDraw=false
 8
 9[/Script/DeltaCraft Hub.DeltaCraft HubNetworkSettings]
10bReplicateState=true
11UpdateFrequency=10.0
12MaxReplicationDistance=10000.0

Installation

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  • Initialize: Call once during BeginPlay to set up internal state
  • Configure: Pass a configuration struct or Data Asset reference
  • Activate: Enable the component to begin processing
  • Query: Perform spatial or logical queries against the managed data
  • Deactivate: Temporarily stop processing without losing state
  • Teardown: Clean up resources during EndPlay

Common Patterns

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Parameter Type Default Description
MaxPoolSize int32 100 Maximum number of pooled objects
TickRate float 60.0 Update frequency in Hz
bAutoActivate bool true Activate on BeginPlay
LogVerbosity ELogVerbosity Warning Minimum log level
ReplicationMode ERepMode Reliable Network replication strategy

Code Examples

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Performance

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 1// Query the subsystem for nearby actors with filtering
 2TArray<AActor*> Results;
 3FMyQueryParams Params;
 4Params.Origin = GetActorLocation();
 5Params.Radius = 1000.0f;
 6Params.MaxResults = 10;
 7Params.bIncludeHidden = false;
 8Params.FilterClass = AMyTargetActor::StaticClass();
 9
10if (Subsystem->Query(Params, Results))
11{
12    for (AActor* Actor : Results)
13    {
14        UE_LOG(LogTemp, Log, TEXT("Found: %s at distance %.1f"),
15            *Actor->GetName(),
16            FVector::Dist(Params.Origin, Actor->GetActorLocation()));
17    }
18}

Properties

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 1// Declare delegates for event-driven communication
 2DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnStateChanged, EMyState, NewState);
 3DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FOnProgressUpdated, float, Progress, FString, Message);
 4
 5UPROPERTY(BlueprintAssignable, Category = "Events")
 6FOnStateChanged OnStateChanged;
 7
 8UPROPERTY(BlueprintAssignable, Category = "Events")
 9FOnProgressUpdated OnProgressUpdated;
10
11// Broadcasting events
12void UMyManager::UpdateState(EMyState NewState)
13{
14    CurrentState = NewState;
15    OnStateChanged.Broadcast(NewState);
16    OnProgressUpdated.Broadcast(GetProgress(), GetStatusMessage());
17}