Files
OpenFrontIO/resources
RickD004 37b7a781c2 Huge map update: Re-make of the terrain of multiple maps for better gameplay (#4139)
Resolves #4099

## Description:

Remake the terrain of various maps with green gaps in their terrain,
example below (strait of gibraltar)
<img width="608" height="383" alt="image"
src="https://github.com/user-attachments/assets/9272cf00-6620-4711-81a9-64ebf6a7990d"
/>

### Why?

In maps with continuous brown and white terrain, it is easier for a
player to defend against an attacker, as these types of terrains slow
down troops. However in maps with green gaps like the one in the
example, the troops will just rush in the green gaps and surround all
the white terrain, instantly absorbing them, which makes the terrain
mostly useless against defending.

I believe that this new type of terrain (using proper elevation data
instead of "hillshade like the ones used in these maps) is better for
gameplay as it adds more complexity to attacks and defense, and also
brings diversity to spawns, as right now these maps have functionally
all-green terrain all across them

I also changed the coastline of some maps that had them very pixelated.
This sometimes caused some rivers to dissapear and some islands to be
merged into blobs.

I kept the rivers of all maps even if slightly updated, to not change
naval gameplay.

The maps changed were:

Black Sea (terrain and coastline)
Gateway to the Atlantic (terrain only)
Between 2 seas (terrain only)
Iceland (terrain and coastline)
East Asia (terrain only)
Falklands (terrain and coastline)
Halkidiki (terrain only)
Strait of Gibraltar (terrain and coastline)
Italia (terrain and coastline)
Japan (terrain only)
Two Lakes (terrain only)

<img width="1058" height="536" alt="Captura de pantalla 2026-06-02
213132"
src="https://github.com/user-attachments/assets/58fb357b-8738-4388-bbc5-d6c9c1ac4699"
/>
<img width="625" height="583" alt="Captura de pantalla 2026-06-02
213251"
src="https://github.com/user-attachments/assets/99ead586-f790-4088-baef-ad179f3c0119"
/>
<img width="535" height="537" alt="Captura de pantalla 2026-06-02
213336"
src="https://github.com/user-attachments/assets/66755b25-e362-4ef0-b7ff-48b51fdabbbd"
/>
<img width="639" height="561" alt="Captura de pantalla 2026-06-02
231736"
src="https://github.com/user-attachments/assets/22802e9a-5989-4204-9002-61afef22696b"
/>
<img width="680" height="543" alt="Captura de pantalla 2026-06-02
231804"
src="https://github.com/user-attachments/assets/bfae63b6-81e3-4d53-bf17-962332b2c9b0"
/>
<img width="742" height="545" alt="Captura de pantalla 2026-06-02
212309"
src="https://github.com/user-attachments/assets/cdb933c7-5361-4db5-aa4f-c641d0fc4662"
/>
<img width="613" height="546" alt="Captura de pantalla 2026-06-02
212531"
src="https://github.com/user-attachments/assets/352148be-01fb-491b-ae39-746c54d3c278"
/>
<img width="908" height="548" alt="Captura de pantalla 2026-06-02
212709"
src="https://github.com/user-attachments/assets/f6a1ec03-fed8-4872-9a65-0a1ef4268035"
/>
<img width="718" height="536" alt="Captura de pantalla 2026-06-02
212839"
src="https://github.com/user-attachments/assets/5ec1e581-142c-45d6-af0d-e642989e1be1"
/>
<img width="516" height="544" alt="Captura de pantalla 2026-06-02
212937"
src="https://github.com/user-attachments/assets/9843ef29-81f1-45c3-ba7e-49ad2693571d"
/>
<img width="801" height="537" alt="Captura de pantalla 2026-06-02
213028"
src="https://github.com/user-attachments/assets/252822b5-2f2d-456e-a207-85367fab8e02"
/>

Terrain sources from NASA and OpenTopography, both already credited in
CREDITS

## 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

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

tri.star1011
2026-06-04 15:59:30 -07:00
..
2026-06-01 17:29:56 -07:00
2026-01-09 20:26:34 -08:00
2026-06-04 15:58:34 -07:00
2026-05-31 15:09:08 +01:00
2026-05-31 15:09:08 +01:00
2026-01-09 20:26:34 -08:00