The base class

The base class will hold the major behaviors and instructions for all the collectables. Go ahead and create a new class based on the Actor class and name it PickupBase. Once Visual Studio opens, let's write some code for it.

PickupBase.h

As all we have to do (so far) for this class is based on the Actor class, I didn't have to include something special for its header file. At the same time, write the code for the defining the constructor and the class:

#pragma once

#include "GameFramework/Actor.h"
#include "PickupBase.generated.h"

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

Then you can remove the definition set of the default two functions, but I kept them just in case I need them in the near future:

// Called when the game starts or when spawned
  virtual void BeginPlay() override;
  
// Called every frame
  virtual void Tick(...