Character clipping through walls (Game Animation Sample)

Development Character & Animation
,
3

So I managed to put together something in BP and its C++ equivalent using your idea, sharing here in case it helps anyone:

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image2340×1167 483 KB

void APlayerCharacter::HandleMovementInput(float X, float Y)
{
    FVector Forward = GetActorForwardVector();
    FVector Right = GetActorRightVector();
    FVector InputVector = (Forward * Y + Right * X);
    FVector InputDirection = InputVector.GetSafeNormal();
    FVector CounterDirection;

    FVector TraceStart = GetActorLocation();
    FVector TraceEnd = GetActorLocation() + InputDirection * 100.0f;

    FHitResult Hit;
    FCollisionQueryParams Params;
    Params.AddIgnoredActor(this);
    
    bool bHit = GetWorld()->LineTraceSingleByChannel(Hit, TraceStart, TraceEnd, ECC_Visibility, Params);

    if (bHit && Hit.bBlockingHit)
    {
        float Distance = (Hit.ImpactPoint - TraceStart).Size();
        float Ratio = FMath::GetMappedRangeValueClamped(FVector2D(50.f, 200.f), FVector2D(0.f, 1.0f), Distance);
        
        CounterDirection = (InputVector * (1.0f -  Ratio)) * -1;
        AddMovementInput(InputDirection + CounterDirection, 1.0f);
    }
    else
    {
        AddMovementInput(InputDirection, 1.0f);
    }
    
    // Debug
    if (bDrawCollisionChecks)
    {
        DrawDebugLine(GetWorld(), TraceStart, TraceEnd, bHit ? FColor::Red : FColor::Green, false, .015f, 0, .5f);
        if (bHit) DrawDebugPoint(GetWorld(), Hit.ImpactPoint, 50, FColor::Red, false, .015f);
    }
}

It does works well to prevent basic clipping, but if you run into a wall and shake the mouse, you can still clip your head through. So if anyone has ideas to improve this, I’m all ears.