Do not crash if there is no physical entity

[andrsd]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 76.33%. Comparing base (69cc682) to head (54f1b58).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/main.cpp	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #29      +/-   ##
==========================================
- Coverage   76.36%   76.33%   -0.04%     
==========================================
  Files           1        1              
  Lines         275      300      +25     
==========================================
+ Hits          210      229      +19     
- Misses         65       71       +6     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.