3 Commits

Author SHA1 Message Date
FloPinguin 4ae1fa2ebe Remove small islands on compact maps with half threshold 🏝️ (#3762)
## Description:

Small-island removal previously ran only on the full-size terrain. The
compact (4x downscaled) map inherited that filtering before being
downscaled, which meant islands that survived at full size could end up
as tiny specks in the compact map.

This PR runs `removeSmallIslands` on the 4x terrain as well, with half
the threshold (15 vs 30 tiles), so very small islands are pruned in
compact maps while the full-size map is unchanged.

## Please complete the following:

- [X] I have added screenshots for all UI updates
- [X] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [X] I have added relevant tests to the test directory
- [X] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

FloPinguin
2026-04-25 11:51:02 -06:00
gabigabogabu 371c51f05a Fix seam lines in Nile Delta map (#3432)
## Description:
Fix visible seam lines in the Nile Delta map caused by SVG tile
boundaries in the source image. Applied directional elevation blur (1x9
then 9x1 kernels) on land pixels only, preserving rivers and coastlines.

### Before

![before](https://raw.githubusercontent.com/openfrontio/OpenFrontIO/main/map-generator/assets/maps/niledelta/image.png)

### After

![after](https://raw.githubusercontent.com/gabigabogabu/OpenFrontIO/feature/nile-delta-seam-fix/map-generator/assets/maps/niledelta/image.png)

## Checklist
- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

Discord: gabigabogabu

---------

Co-authored-by: FloPinguin <25036848+FloPinguin@users.noreply.github.com>
2026-03-15 20:29:26 +00:00
gabigabogabu 9ca342e510 Add Nile Delta map (#3306)
## Description:
Add Nile Delta as a new regional map. Features 11 nations across the
delta region (Alexandria, Damietta, Faraskur, Sheremsah, El
Senbellawein, Aga, Mit Ghamr, Cairo, Heliopolis, Memphis, El Mansoura).
1.36M land tiles at 1556x1280, terrain generated from real relief data.
Includes the Suez Canal. Playlist frequency: 4.

![Nile Delta
thumbnail](https://raw.githubusercontent.com/gabigabogabu/OpenFrontIO/feature/nile-delta-map/resources/maps/niledelta/thumbnail.webp)

## Checklist
- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

Source: https://commons.wikimedia.org/wiki/File:Niledelta_33.svg
Discord: gabigabogabu
2026-03-01 20:14:26 -08:00