Creating a building that spawns units

For this recipe, we will create a building that spawns units at a fixed time interval at a particular location.

How to do it...

1. Create a new Actor subclass in the editor, which we will name Barracks:

2. Then, add the following implementation to the class:

UCLASS()
class CHAPTER_04_API ABarracks : public AActor
{
    GENERATED_BODY()
    
public: 
    // Sets default values for this actor's properties
    ABarracks();

protected:
    // Called when the game starts or when spawned
    virtual void BeginPlay() override;

public: 
    // Called every frame
    virtual void Tick(float DeltaTime) override;

    UPROPERTY() 
    UStaticMeshComponent* BuildingMesh; 

    UPROPERTY() 
    UParticleSystemComponent...