FMLDeobfuscatingRemapper unmapping field/method

[CreativeMD]

Hello,

 

is there a way to "unmap" names of field/ method?

 

Example:

I'm using the "IClassTransformer" and want to edit the 2"onUpdate" ("()V") in "EntityItem".

I can "unmap" EntityItem using this method:

FMLDeobfuscatingRemapper.INSTANCE.map("net/minecraft/entity/item/EntityItem")

 

but "unmapping" onUpdate is not possible...

i can only map fields/methods

FMLDeobfuscatingRemapper.INSTANCE.mapFieldName(owner, name, desc);

FMLDeobfuscatingRemapper.INSTANCE.mapMethodName(owner, name, desc);

 

So my question is:

Is there a way to unmap Fields/Methods?

[CreativeMD]

The MCP names (onUpdate, onBlockActivated, etc.) are not available at runtime outside the dev environment. All you have access to are the SRG names (field_xxxxx_x, func_xxxxx_x) and you can map between those and the "fully obfuscated names" (the names in the original jar file).

How? I will need that, too .

FMLDeobfuscatingRemapper.INSTANCE.mapFieldName(owner, name, desc); doesn't work , maybe i'm doing it wrong?

 

If you only want 1 name in your code you need to use SRG names in the code and translate to MCP names in the development environment. I use this class for that: https://github.com/diesieben07/SevenCommons/blob/master/src/main/java/de/take_weiland/mods/commons/asm/MCPNames.java

You will need to update the path to the mappings files for 1.7 though.

I searched for these two files (fields.csv and methods.csv), but couldn't find it for 1.8 .

 

Also i don't understand these lines:

String prop = System.getProperty(SYS_PROP);
if (prop == null) {
mappingsDir = "./../build/unpacked/mappings/";
} else {
mappingsDir = prop;
}

Does this also work outside of my eclipse environment?

[CreativeMD]

but this does only work in m eclipse enviroment:

public void replaceOnUpdateMethod(ClassNode node)
{
	String targetMethodName = "onUpdate";
	String targetDESC = "(Lnet/minecraft/entity/item/EntityItem;)V";

	Iterator<MethodNode> methods = node.methods.iterator();
	while(methods.hasNext())
	{
		MethodNode m = methods.next();
		if ((m.name.equals(targetMethodName) && m.desc.equals("()V")))
		{
			m.instructions.clear();
			m.instructions.add(new VarInsnNode(ALOAD, 0));
			m.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "com/creativemd/itemphysic/physics/ServerPhysic",  "update", targetDESC, false));
			m.instructions.add(new InsnNode(RETURN));
		}
	}
}

I think because it's not a real "link" to the method, but only a string.

[CreativeMD]

I don't know the name, but i used names like a, ai or something like that, but i thought i could use this class "map" these names.

Obviously this is not possible .

[CreativeMD]

Hm,

what are SRG names?

I used the file 'notch-mcp.srg' in he past

here is one extract:

MD: adw/s_ ()V net/minecraft/entity/item/EntityItem/onUpdate ()V

so i would have to replace onUpdate with s_, that's how i did it in the past.

[CreativeMD]

So is there a way to get the notch names?

Also i couldn't get the srg names as well, the only thing i found was mapping func_xxxxxx to onUpdate(), but not the other way round. Did i something wrong?

[CreativeMD]

I'm confused, i don't think that i could use srg name ("funcxxxx") instead of ("s_") do transform the class.

MethodNode m = methods.next();
if ((m.name.equals(targetMethodName) && m.desc.equals("()V")))

Therefore i need the notch names ...

 

[CreativeMD]

After i implement it, how do i have to change my code?

[CreativeMD]

I will try it out .

Thanks for helping me out.

[CreativeMD]

After a little break, i continued working on it and failed

I'm using "@IFMLLoadingPlugin.SortingIndex(1001)"

but there is no way i can map an methodname like "interactFirst" to something like "func....".

I tried everything but couldn't find anything which could help me doing it.

FMLDeobfuscatingRemapper is saving these names in "rawFieldMaps", but there is no way i could access them, also it's only saving the SRG names.

So i don't know if this class is able to find the SRG name for a given MCP name.

Could someone help me out?

[CreativeMD]

You mean i should use SRG names and map it to mcp names.

Not my favorite, but a better way than before.

[CreativeMD]

I could use these files 'notch-mcp.srg',

but this would consume a way to much time for a startup.