[1.16.1] Library Mod / Dependencies

[Maxi07]

I have made a mod which contains a few class I need across other mods. I want to use the code of this mod like I can use the minecraft and forge code in all my mods.

Unfortunately I dont know anything about gradle and was unable to find something helpful...

 

I have built the jar of my lib mod with gradlew build and now I want to use it in my other mods, what do I have to do?

 

Thanks for helping!

[DaemonUmbra]

You have two choices, either you put it somewhere and then each of your mods points to where you put it, or you create a multi-build project

[Maxi07]

I think I want the first option: I want to have this mod as a dependency for every other mod

 

But what do I have to do, to get this working?

[Crazzy4999]

1 hour ago, Maxi07 said:

I think I want the first option: I want to have this mod as a dependency for every other mod

 

But what do I have to do, to get this working?

I think this what you are looking for these can be found in any ExampleMod classes forge show us how communcation works between other mods
 

private void enqueueIMC(final InterModEnqueueEvent event)
    {
        // some example code to dispatch IMC to another mod
        InterModComms.sendTo("examplemod", "helloworld", () -> { LOGGER.info("Hello world from the MDK"); return "Hello world";});
    }

    private void processIMC(final InterModProcessEvent event)
    {
        // some example code to receive and process InterModComms from other mods
        LOGGER.info("Got IMC {}", event.getIMCStream().
                map(m->m.getMessageSupplier().get()).
                collect(Collectors.toList()));
    }

But i'm not sure about this i never tried anything like this but if this is not working then you can take a look at the source of any library mod on curseforge

[Crazzy4999]

By the way this is from the 1.16.1 ExampleMod class so it's up to date for you

[Maxi07]

@Crazzy4999 Thanks for helping, but I think this not what I want.

I am pretty sure a have to add something to my build.gradle, but because I dont know anything about gradle I dont know what.

 

What I want:

23 hours ago, Maxi07 said:

I want to use the code of this mod like I can use the minecraft and forge code in all my mods.

In all mods I am able to use the minecraft classes like "Item" and "Block" (e.g. "new Item(new Properties().group(ItemGroup.MATERIALS))" )

[Crazzy4999]

Oh i see yeah i'm not sure about how would you do that than the best thing you can do in my opinion is to take a look at other library mods how they do their stuffs that's probably going to help you

[DaemonUmbra]

I believe you'll probably want to set up publishing your library to mavenLocal (it's a maven repository structure on your disk), then pull it from there.

(Please attempt to look up what I've mentioned before continuing)

[Maxi07]

What about that "libs" folder I have heard of?

[DaemonUmbra]

I'm not sure that works anymore, I need to look at that.

And even if it works the same way it used to, it working would depend on how your library is built, whether it's reobfed or not

[Maxi07]

1 minute ago, DaemonUmbra said:

And even if it works the same way it used to, it working would depend on how your library is built, whether it's reobfed or not

I don't fully understand this, but enough for me to say that I don't want this problem.

So you recommend using mavenLocal... I dont know what this is and how I can get it working, but I will try it. And could you please give a few examples or, even better, a guide?

[DaemonUmbra]

Well you'll still have the issue of do you want to reobf with build or do you want to reobf with publish?

[Maxi07]

Okay... Just to make sure I got it right: What does reobf do? (Sorry for asking)

Edited August 12, 2020 by Maxi07

[BlockyPenguin]

I'm not going to pretend to know anything about making a library mod, but don't you just add it as a dependency in the mods.toml file of the mods that depend on your library?

[Maxi07]

Just now, BlockyPenguin said:

I'm not going to pretend to know anything about making a library mod, but don't you just add it as a dependency in the mods.toml file of the mods that depend on your library?

Thanks for helping, but this is only for forge, to say the mod is missing instead of just crashing

[BlockyPenguin]

Just now, Maxi07 said:

Thanks for helping, but this is only for forge, to say the mod is missing instead of just crashing

Ah right ok  What about adding it to the build path of the other mod? In eclipse, if you right click your project folder, go to build path > configure build path > libraries and then press "Add external JARs"
 

I mean, I can see forge in there? Again, I don't know much about lib mods, this is just my guesswork.

[Maxi07]

49 minutes ago, Maxi07 said:

What about that "libs" folder I have heard of?

Quoted from the example mod mdk: You may put jars on which you depend on in ./libs or you may define them like so..

Just putting the in ./libs does not work...

 

But now I found this:

repositories {

    flatdir { dir 'libs' }

}

 

----------------------------------------------------------

 

1 minute ago, BlockyPenguin said:

Ah right ok  What about adding it to the build path of the other mod? In eclipse, if you right click your project folder, go to build path > configure build path > libraries and then press "Add

I will try this

[DaemonUmbra]

4 minutes ago, BlockyPenguin said:

Ah right ok  What about adding it to the build path of the other mod? In eclipse, if you right click your project folder, go to build path > configure build path > libraries and then press "Add external JARs"
 

I mean, I can see forge in there? Again, I don't know much about lib mods, this is just my guesswork.

No that's not how you do it. (I mean it is for regular Eclipse projects, but this is a Gradle project)

 

If you make a multi-build project you just have the mod project depend on the library project's output and have everything reobf on publish.

If you have every project separate you reobf with build, have the library publish to mavenLocal (or use a flatDir repo) and have your mod project get the library and fg.deobf() it

[Maxi07]

30 minutes ago, Maxi07 said:

Okay... Just to make sure I got it right: What does reobf do? (Sorry for asking)

And what does fg.deobf() do?

[DaemonUmbra]

It deobfuscates things to your current mappings

[BlockyPenguin]

2 minutes ago, DaemonUmbra said:

No that's not how you do it. (I mean it is for regular Eclipse projects, but this is a Gradle project)

 

If you make a multi-build project you just have the mod project depend on the library project's output and have everything reobf on publish.

If you have every project separate you reobf with build, have the library publish to mavenLocal (or use a flatDir repo) and have your mod project get the library and fg.deobf() it

ah ok

[Maxi07]

I was unable to get it working...

[DaemonUmbra]

https://docs.gradle.org/current/userguide/core_dependency_management.html

[Maxi07]

I am making progress...

 

I added

repositories {
   flatDir { dir 'libs' }
}

and 

implementation fg.deobf('maxi.simpledev:simpledev-1.16.1:1.0')

to my build.gradle and run

.\gradlew --refresh-dependencies

.\gradlew genEclipseRuns eclipse

again...

 

It only works halfway: Eclipse always says: "Source not found". Maybe it is this problem:

20 hours ago, DaemonUmbra said:

Well you'll still have the issue of do you want to reobf with build or do you want to reobf with publish?

My build.gradle has this default line:

jar.finalizedBy('reobfJar') 

But my jar is not obfuscated, I can use an online decompiler and can read my code (only one subclass where I override one function, the function is only numbers and letters)

But then, why I need fg.deobf if it does not do anything (it seems like)?

 

Edit: 

19 hours ago, DaemonUmbra said:

If you make a multi-build project you just have the mod project depend on the library project's output and have everything reobf on publish.

Maybe a multi-build project is easier?

Edited August 13, 2020 by Maxi07

[DaemonUmbra]

Does your library use any Minecraft code?