The Spawn Marker is an editor-visible, runtime-invisible actor used to designate dynamic spawn locations for in-game objects such as collectible rocks, NPCs, or other actors. These markers are designed to be placed manually in the level and managed by the ObjectManagementSystem, a Game Instance Subsystem responsible for runtime instantiation and lifecycle management.

• Reduce manual placement of multiple actors
• Provide a centralized, scalable method to spawn and respawn items
• Allow designers to configure spawn behavior using instance parameters

• Billboard Component: Provides a visual icon in the editor for easy location and manipulation
  • Visible only in the editor
  • Uses a spawn icon or custom texture for identification

• Actor Hidden In Game set to true
• Collision disabled
• Optional debug visuals can be added using EditorConstructionScript

During initialization or at relevant runtime intervals, the ObjectManagementSystem will:

1. Query all actors of type AGameSpawnerMarker
2. Extract configuration data
3. Spawn the specified number of actors of SpawnClass within SpawnRadius
4. Monitor spawned instances for lifecycle events (destruction, collection)
5. Trigger respawn after RespawnDelay if bRespawn is true

TArray<AActor*> SpawnerMarkers;
UGameplayStatics::GetAllActorsOfClass(GetWorld(), AGameSpawnerMarker::StaticClass(), SpawnerMarkers);

for (AActor* Marker : SpawnerMarkers) {
    AGameSpawnerMarker* Spawner = Cast<AGameSpawnerMarker>(Marker);
    if (Spawner) {
        // Handle spawning logic here
    }
}

• Support for weighted spawn tables
• Integration with region-based streaming or spawn culling
• UI indicators in editor for better visualization of spawn radius
• Optional blueprint interface for per-spawn customization

Author: Steamforge Systems Team
Last Updated: April 8, 2025