Lock is leaking when placed at sea level.

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#237 6 comments 0 reactions 0 assignees View on GitHub

@zephyris is already working on this.

Since Jan 21, 2026.

  • #238 by @zephyris — open

Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Domain
computer-graphics, game-dev

Research direction

Start by reproducing the lock at sea level beside a non-sea tile, then compare it with a higher-level lock and the sea-adjacent case shown in the issue. Determine whether the leaking appearance comes from OpenGFX2 graphics or OpenTTD's tile classification; done means the sea-level lock matches the expected higher-level behavior.

Written by the indexing model from the issue text.

Description

Lock is leaking when placed at sea level adjacent to tiles that are not sea.

Expected result

Similar to one found on higher levels.
Image

Actual result

Image

Limitations

Works as expected when adjacent tile is sea.
Image
It might be an OTTD bug that those tiles are not sea but are at sea level.

Dominant language
Python
Stars
94
Forks
16
Avg merge
7d 4h
Merged PRs (30d)
3

Getting set up

This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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