How do I make a surface walkable?

Development Programming & Scripting C++
1

I’m currently working on a project which involves a first person player rotating direction of gravity, so far, character rotates fine and gravity changes fine, but when he hits the ceiling while gravity is changed, so basically landing on a new floor, he bounces and if he hits the old floor, the player’s head will stick to the old floor.
So how can I make this new surface walkable?

2

If you look at the UCharacterMovementComponent class, you’ll see it assumes that in order to find the “floor” it can trace in the direction of the negative Z axis.

For example, CharacterMovementComponent.cpp line 3518:


bBlockingHit = GetWorld()->SweepSingle(Hit, CapsuleLocation, CapsuleLocation + **FVector(0.f,0.f,-TraceDist)**, FQuat::Identity, CollisionChannel, CapsuleShape, QueryParams, ResponseParam);

Similar assumptions are made on line 3531, line 3566, and possibly elsewhere.

3

I added a task to investigate making the character movement code flexible enough to support different gravity directions, with impacting performance in the normal case. Sounds like a cool feature if we can do it!

4

So…any luck?