Override GenerateNew from worldgen_main.lua:

[KucheKlizma]

Hi,

I'm trying to make a simple mod to easily change the seed for world generation.

I found that this could be possible if I can override the savedata.meta.seed value.

It's declared in the following function from worldgen_main.lua and I think I have to override it in order to do so, but I'm not sure where to begin:

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function GenerateNew(debug, world_gen_data)

....

    savedata.meta = {     
                        build_version = APP_VERSION, 
                        build_date = APP_BUILD_DATE,
                        build_time = APP_BUILD_TIME,
                        seed = SEED,
                        level_id = level.id,
                        session_identifier = WorldSim:GenerateSessionIdentifier(),
                        saveversion = savefileupgrades.VERSION,
                    }

...

end

I've done similar stuff in a different API, but there I only had to create a lua file with the same filename in the mod and override as I please.

I tried supplying a value for savedata.meta.seed  in various forms, but that didn't achieve anything:

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Global.savedata.meta.seed = 3
savedata.meta.seed = 3

global.savedata.meta["seed"] = 3
savedata.meta["seed"] = 3

 

local require = GLOBAL.require

gen = require("worldgen_main")

gen.savedata.meta.seed= 3
gen.savedata.meta["seed"] = 3

I'm using this console command to check after generating a world:

print(TheWorld.meta.seed)

I'm currently trying something like this in modworldgenmain.lua - it's probably very wrong:

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local require = GLOBAL.require

gen = require("worldgen_main")

function gen.GenerateNew = function (debug, world_gen_data)

....

modified seed.

...

end

 

 

I'm getting this error:

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[string "../mods/World_Seed_DST/modworldgenmain.lua"]:31: '<name>' expected near '?'

This is line 31 - it's part of the GenerateNew function:

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    print("level_type", tostring(world_gen_data.level_type))

Tbh I'm not certain if it would even work with correct synthax, as I don't know if mods get loaded in time for world generation, but I thought it's worth a try.

If I manage to at least get the basic functionality working, I'll probably have to work out how to read seeds from a .txt file, as the UI doesn't support direct number/string input. Trying the aforementioned input from file caused the game to crash, but I'll troubleshoot that one out later once it's meaningful. If it's possible to mod the API/UI so it supports direct numberic input that would be much more elegant than reading from a file, but idk if that's a realistic goal.

Any tips would be appreciated!

Thanks!

Edited January 19, 2018 by KucheKlizma