cleak / RapierWallTest

An example of a couple failure cases in Bevy/Rapier.

Example failure cases for Bevy/Rapier

This a minimal project to demonstrate how a KinematicCharacterController can get stuck on walls. See main.rs for details.

Running

cargo run --release

Getting stuck on walls

Here's a quick example of how collide-and-slide seems to fail with vertical walls. Note that the forward key is being held almost the whole time - the stops are the collider getting stuck on the wall.

Offset collapse Example

In trying to resolve the above issue, I ran across a potentially related issue: offset values (at least large ones) aren't respected. Below is an example with a large offset:

KinematicCharacterController {
    offset: CharacterLength::Relative(1.00),
    .. default()
}

but as can be seen in the video, this offset is only maintained when initially approaching the wall. After pushing against it for a second, the collider moves in much closer than this offset.