Simple question: Why has the isBadPotion() method the @SideOnly(Side.CLIENT) annotation (thus making it only accessible on the client only)? Since it only returns a (private final) field, which hasn't this annotation.

So I would like to either know if this is intended (and yes, why) or if this can be changed (since I intended to use this to easily filter the potions by their "badness" and I don't see a reason for making this accessible client-only).

The @SideOnly annotations are generated automatically by FML during the client-server merge. In the vanilla code this method only exists on the client, so it gets this annotation.

Why that, you might ask. The obfuscator mojang uses strips out methods that aren't used. And since isBadPotion is never used in any server code, it gets stripped out there (not contained in the minecraft_server.jar). But the client code contains references to that method, so it stays in the minecraft.jar.

Thats what the annotation means. Removing the annotation would mean a base edit on the server (to add the method back in).

If you need access to the field use reflection or AccessTransformers (I am sure you are familiar with stuff like that ).

 

Oh, that's how the annotations get added

 

Well then, If I can't just remove the annotation with ASM, I'll add a dummy method to access that field. I don't want to use reflection for what I'm aiming at, because of performance.

I don't want to use reflection for what I'm aiming at, because of performance.

It's not as bad as you might think, at least if you are not stupid

But if you are a coremod anyhow, a dynamically created setter is definitely cleaner and the way to go.

 

Reflection is not really an option, since I check something every tick (armor which removes bad potion effects), so a new getter (not a setter, I don't need one) would be fine, and yes, my Manager Pack (requirement for some time for my mods) will be a coremod in the next release.

An AccessTransformer would be an another option, but I don't like to have files in the root directory (/Minecraft/src/)

Yup. Totally agree

If you want a tip for adding methods via ASM what I usually do is make a dummy interface that contains these methods, e.g. called EntityPlayerAccessor. Then via ASM I add the methods and the Interface to the EntityPlayer class. When I call the method i use something like ((EntityPlayerAccessor)player).someMethod(). That way you don't have to edit the base class files in eclipse.

 

Thanks, I'll make use of it when I need it

protip everything is public at runtime.