Hey guys,
I’m trying to get it so that my main character can detect when it hits (bumps into) one of my enemy characters in the game. So far I have this code:
Header file:
#pragma once
#include "CoreMinimal.h"
#include "Components/ActorComponent.h"
#include "Components/CapsuleComponent.h"
#include "MainCharacterController1.generated.h"
UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) )
class CPLUSPLUSTEST2_API UMainCharacterController1 : public UActorComponent
{
GENERATED_BODY()
public:
// Sets default values for this component's properties
UMainCharacterController1();
protected:
// Called when the game starts
virtual void BeginPlay() override;
public:
// Called every frame
virtual void TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction) override;
UFUNCTION()
void OnHit1(AActor * OtherActor, UPrimitiveComponent * OtherComp, FVector NormalImpulse, const FHitResult& Hit);
private:
AActor* mainCharacterActor; // The owning actor of this component script
UCapsuleComponent* mainCharacterCapsule; // Main character's capsule collider
};
CPP file:
#include "MainCharacterController1.h"
#include "GameFramework/Actor.h"
#include "Components/CapsuleComponent.h"
#include "Components/PrimitiveComponent.h"
// Sets default values for this component's properties
UMainCharacterController1::UMainCharacterController1()
{
// Set this component to be initialized when the game starts, and to be ticked every frame. You can turn these features
// off to improve performance if you don't need them.
PrimaryComponentTick.bCanEverTick = true;
}
// Called when the game starts
void UMainCharacterController1::BeginPlay()
{
Super::BeginPlay();
mainCharacterActor = GetOwner();
mainCharacterCapsule = mainCharacterActor->FindComponentByClass<UCapsuleComponent>();
//mainCharacterCapsule = ObjectInitializer.CreateDefaultSubobject
mainCharacterCapsule->OnComponentHit.AddDynamic(this, &UMainCharacterController1::OnHit1);
}
// Called every frame
void UMainCharacterController1::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction)
{
Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
}
//void UMainCharacterController1::OnOverlapBegin(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
void UMainCharacterController1::OnHit1(AActor * OtherActor, UPrimitiveComponent * OtherComp, FVector NormalImpulse, const FHitResult& Hit)
{
// Other Actor is the actor that triggered the event. Check that is not ourself.
if ((OtherActor != nullptr) && (OtherActor != mainCharacterActor) && (OtherComp != nullptr))
{
// Turn off the light
// PointLight->SetVisibility(false);
UE_LOG(LogTemp, Warning, TEXT("I collided with something!"));
}
}
I’ve seen different versions, some with initializers etc… , but also most of the examples seem to be on a standalone “Actor” object. My scripts are “Actor Component” C++ files that I attached to my main character. I’m not sure if that has anything to do with anything…
Also, the code line below is where I’m getting the error/problem, as it doesn’t seem to be “setup” correctly for the “AddDynamic” function to work. And I’m not sure why or what to do. It’s this code line in the CPP script:
mainCharacterCapsule->OnComponentHit.AddDynamic(this, &UMainCharacterController1::OnHit1);
Can I do this from an Actor Component on my main character? Or do I need to do it from somewhere else?
Thanks for any help!
