No slipping when lying down

- No slipping when lying down
- Doesn’t change slipping mechanics otherwise.
I spend four hours merging my commits and I find this

- if it was any other programming language it wouldn’t have even
compiled.
Removes magic numbers and an useless check

- it shouldn’t runtime.
Merge pull request #2066 from Perakp/slipFix4

No slipping when lying down