Add AIR_DRAG_DEFAULT and AIR_DRAG_NONE constants
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- Dominant language
- Python
- Stars
- 58
- Forks
- 46
- Avg merge
- 11d 15h
- Merged PRs (30d)
- 3
Description
The air_drag_coefficient property of trains and road vehicles has some magic values:
- Integer 0: use some default max_speed-dependent value.
- Integer 1: apply no air drag.
Currently NML applies unit conversion to this value, so to get no air drag you have to set "1/255", while "0" does something entirely different.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing the air_drag_coefficient property and its unit conversion in NML. Check how integer values 0 and 1 are currently handled, then identify the relevant tests or test entry point. Done means exposing AIR_DRAG_DEFAULT and AIR_DRAG_NONE constants so users no longer need the 1/255 workaround while preserving the distinct default behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100