Tweaks desert code

[BadAtThisGame302]

About The Pull Request

Basically just rewrites code for desert edge spawning to reduce lag, ported from THE Sunset coder....

Pre-Merge Checklist

• [ ] You tested this on a local server.
• [x] This code did not runtime during testing.
• [x] You documented all of your changes.

Changelog

:cl: tweak: tweaked desert code /:cl:

[BadAtThisGame302]

no clue why this is failing integration tests??? It literally succeeded in the previous commits.