Dynamic gravity for characters

[Arveum]

@;262892

If you just want the code, visit each link and click on the “Raw” button (there might be a better way):
https://github.com//UnrealEngine/blob/Arbitrary_Gravity_Orientation/Engine/Source/Runtime/Engine/Classes/GameFramework/CharacterMovementComponent.h
https://github.com//UnrealEngine/blob/Arbitrary_Gravity_Orientation/Engine/Source/Runtime/Engine/Private/Components/CharacterMovementComponent.cpp
Remember to recompile the engine code.

Use code in the .cpp file (find and replace functions):

void UCharacterMovementComponent::UpdateGravity(float DeltaTime)
{
	if (IsMovingOnGround())
	{
		SetGravityDirection(CurrentFloor.HitResult.ImpactNormal * -1.0f);
	}

	UpdateComponentRotation();
}

FVector UCharacterMovementComponent::GetComponentDesiredAxisZ() const
{
	if (IsMovingOnGround())
	{
		return CurrentFloor.HitResult.ImpactNormal;
	}

	return GetGravityDirection(true) * -1.0f;
}

About changing the gravity of other actors, I didn’t do anything about that, but I remember there were threads about that matter in these forums.

Sorry if is a noobish question, but how do I now use that updated code?
At the moment I do a line trace from my character to the center of an object (in my case a sphere). I understand that I need to break the hit > get the normal > reverse it, but what do I do then? I’ve tried plugging that result into the Set Gravity Direction node but that’s not giving the desired result. I read something about applying a rotation to the CapsuleComponent of the character?

I think you’d help out alot of people if you’d explain how to use logic in blueprints.

Thanks in advance!