What's wrong with implementing Accelaration

[Ashok_santharaman]

I just try for Acceleration

Under Tick()

void AVRCharacter::Accelaration()
{
if (VRCharacter->GetCharacterMovement()->GetCurrentAcceleration().Size() > 0.0f)
{
BlinkerMaterialBase;
}

}

HEADER files

#include “VRCharacter.h”
#include “Components/InputComponent.h”
#include “Camera/CameraComponent.h”
#include “Components/SceneComponent.h”
#include “Components/StaticMeshComponent.h”
#include “Engine/World.h”
#include “Camera/PlayerCameraManager.h”
#include “TimerManager.h”
#include “NavigationSystem.h”
#include “Components/PostProcessComponent.h”
#include “Materials/MaterialInstanceDynamic.h”
#include “GameFramework/CharacterMovementComponent.h”

when i called my function Accelaration()
in Tick ()

void AVRCharacter::Tick(float DeltaTime)
{
Super::Tick(DeltaTime);

  Accelaration();

}

unreal engine send me the crash report by mentioning Accelaration(); in Super::Tick(DeltaTime);

[beegeedee]

What you have is chaining of calls where a number of items could potentially return nullptr as a result and this will crash the editor.

VRCharacter->GetCharacterMovement()->GetCurrentAcceleration().Size()

VRCharacter could be a nullptr, and the result of GetCharacterMovement as well. Get Current Acceleration because it uses a . should be fine - I am assuming this is an FVector being returned from it. You really have to check for nullptrs