Need help with intro to UE4 Programming 3 - Creating the base pickup class.

Development Programming & Scripting C++
1

I’m following the tutorial series about c++ programming as the title says and I’ve gotten to video three, followed all her steps, wrote the code exactly as she did and I get this:



1>C:/Users/Luna/Documents/Unreal Projects/TutorialCode_CPP/Source/TutorialCode_CPP/Public/PickUp.h(17): error : In PickUp: Member variable declaration: Missing variable type
1>Error : Failed to generate code for TutorialCode_CPPEditor - error code: 2

here is my pickup header and .cpp file.

pickup.h:




// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

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

/**
 * 
 */
UCLASS()
class TUTORIALCODE_CPP_API APickUp : public AActor
{
	GENERATED_UCLASS_BODY()

	/*True when pick up is touched.*/
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = PickUp);
	bool bIsActive;

	// set this to a UPROPERTY
	UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category = PickUp);
	TSubobjectPtr<USphereComponent> BaseCollisionComponent;

	UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category = PickUp);
	TSubobjectPtr<UStaticMesh> PickupMesh;

	/** Function to call when the pick up is collected.*/
	UFUNCTION(BlueprintNativeEvent);
	void onPickedUp();

};

pickup.cpp:




// Fill out your copyright notice in the Description page of Project Settings.

#include "TutorialCode_CPP.h"
#include "PickUp.h"


APickUp::APickUp(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	// The pickup is active when created.
	bIsActive = true;

	BaseCollisionComponent = PCIP.CreateDefaultSubobject<USphereComponent>(this, TEXT("Base Sphere Component"));

	// set Sphere component as the root component,
	RootComponent = BaseCollisionComponent;

	// create static mesh.
	PickupMesh = PCIP.CreateDefaultSubobject<UStaticMesh>(this, TEXT("Static Mesh"));

	// turn physics on for the battery
	PickupMesh->SetSimulatePhysics(true);

	PickupMesh->AttachTo(RootComponent);
}

void APickUp::onPickedUp_Implementation()
{
	// there is no function here, move along.
}

not sure what I’m doing wrong…

2

If I remember correctly, there was an error in one of these, or rather a deprecated function that is called. It should be covered in the youtube comments…

EDIT: I can see from the error message that this is not the case…
It is complaining about the bool, which is called correctly afaik.

EDIT again: Doh. Remove the ; at the end of all your macros (the UPROPERTY() ones)

3

Hmm, Usually that doesn’t do anything (error wise, anyways) But thanks. Can’t believe it was THAT simple.

4

Quick Question: It’s telling me that these functions aren’t defined in UStaticMesh




	PickupMesh->SetSimulatePhysics(true);

	PickupMesh->AttachTo(RootComponent);

I’m using UE4 4.5.1 so I assume they changed a few things? Sorry if this info is else where.

5

Try AddToRoot() instead…

6

Update: Turns out I was making a static mesh, not a static mesh component…totally different functionality.