Descriptive Problem Summary: adjusting pixel and step offsets of an object on the map behaves incorrectly; adding/subtracting to the old value instead of replacing.

Numbered Steps to Reproduce Problem: https://mega.nz/folder/00FA1YQR#gYAZTk7l5hjYYzIEM91zWA

Code Snippet (if applicable) to Reproduce Problem:


Expected Results: values get set to the inputted value

Actual Results: inputted values get added/subtracted from current value

Does the problem occur:
Every time? Or how often? every time
In other games? yes
In other user accounts? yes
On other computers? yes

When does the problem NOT occur? n/a

Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? (Visit http://www.byond.com/download/build to download old versions for testing.) n/a

Workarounds: n/a