Map Modding & Map Editor 101

[Snow Crystal]

@Carlberg I see that the formerly white outer reaches of the map now have their own province colors and are designated as wasteland seas. I also see that those areas are broken up into multiple provinces instead of a single one; is this because there is some pixel limit to the maximum province size? If so, what is the limit (even rough idea would help)? Does the limit apply only to these sea wastelands or all provinces generally (I have a massive land wasteland as well)? I think this is the reason a map that works in 1.2 without errors won't open in 1.3 because I used a single province for a massive sea wasteland.

The reason it was done was because all of it counted as one province. Which meant that everyone who was in the top left or bottom right corners of the map would be considered close for the sake of things like colonization, which was fairly awkward.

 

[Carlberg]

I am trying to create a world map using this the attached heightmap.

I created a mod folder via the launcher, placed the heightmap inside a folder map_data, openned the map editor and now I cannot figure out how to open the new heightmap.

Do i need to replace the heightmap of the vanilla folder? Wouldn't that break the game?

Replacing the heightmap would change it in the editor, so keep a copy of the original file (or just re-verify game cache if you're using steam and it'll reset)
The game itself uses the packed heightmap and indirection heightmap files. You can temporarily replace the heightmap in the base game, then use the "save as" button in the top left to designate the new area for the heightmap to end up (your mod folders).

When loading a new heightmap odds are it'll not look correctly, but its usually because the editor is seeing both old and new data. By saving it (and possibly doing a heightmap resolution repack under the heightmap resolution tool) it should get a fresh set of data to work from. So after saving, reboot the game/editor and it should have the new data.

 

[Snow Crystal]

Hello lads,

thank you for all the support on modding the map. Its all super easy to understand and modify.

Im just having on minor issue when adding a new province.

Any new province is displayed as: PROV7908_hellenic on the map instead of the name I assigned in the ImperatorRome\game\common\province_names file.

Can you help me?

Thanks in advance

Go to Imperator\game\localization\english\provincenames_l_english.yml, here you can see how we have localized all the province names in the game. Just add your new entry to the list somewhere, and it should be shown in-game.

 

[Carlberg]

Is this still the case?

That should be fixed to the best of my knowledge. I will amend the statement

 

[Carlberg]

So I'm working on completely replacing the vanilla map with my own and I've sort of hit a roadblock with the rivers. As you can see below the entire bottom half of the map doesn't appear for some reason.

If it isn't there than the bottom of the map shows up fine. error.log spits out a bunch of stuff about it being too short/circular, which leads me to believe that I put too many adjacent pixels somewhere. There's a pair of numbers to the side of each log entry which I assume are the co-ordinates of where the bad pixel is, but I have no idea how to find the location on the image that matches those cords.

Any help is appreciated!

PS: I tried posting this with screenshots of the half-rendered map and the river in rivers.bmp, but I think the spam filter flagged it since this is my first post. (I made my account to ask about this issue actually)

it's most probably that the river system either has too many adjacent pixels, or you've tried splitting off a river and then reconnecting it. That will cause the river to fail. Also, a river system can only have one river which has a green starting dot, all others need to have connecting or splitting off pixels.

If you use Photoshop you can go to window>info, that window will tell you the coordinate you're pointing at on the canvas ( X Y )

 

[Carlberg]

Can anyone further elaborate this?

Sure, excuse the Swedish OS text, but it should look similar in the English version of Windows

Alternatively I believe steam might also be able to do the same thing via the launch options if you do not wish to create a permanent map editor shortcut