[1.15.2] Weird function name

[costa99]

hi,

I'm a beginner in forge programming.

I tried making base mod that add blocks,items ecc.

Today i downloaded a mod and i decomplied with intellij to see how it's made but some functions has weird name like "func_77973_b".

 

I hope someone can explain me this names

Thank you

[Animefan8888]

7 minutes ago, costa99 said:

I hope someone can explain me this names

Minecraft code is obfuscated. You can't just decompile it and get readable human names.

[costa99]

14 minutes ago, Animefan8888 said:

Minecraft code is obfuscated. You can't just decompile it and get readable human names.

ok i know that minecraft code is obfuscated and there is mcp but i decompiled a forge mod jar 

this is the code : 

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//

package bl4ckscor3.mod.xptome;

import net.minecraft.item.Item;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.AnvilUpdateEvent;
import net.minecraftforge.event.RegistryEvent.Register;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;
import net.minecraftforge.registries.ObjectHolder;

@Mod("xpbook")
@EventBusSubscriber(
    modid = "xpbook",
    bus = Bus.MOD
)
public class XPTome {
    public static final String MODID = "xpbook";
    @ObjectHolder("xpbook:xp_book")
    public static final Item XP_BOOK = null;

    public XPTome() {
        MinecraftForge.EVENT_BUS.addListener(this::onAnvilUpdate);
    }

    @SubscribeEvent
    public static void onRegisterItems(Register<Item> event) {
        event.getRegistry().register((new ItemXPTome()).setRegistryName(new ResourceLocation("xpbook", "xp_book")));
    }

    @SubscribeEvent
    public void onAnvilUpdate(AnvilUpdateEvent event) {
        if (event.getLeft().func_77973_b() == XP_BOOK || event.getRight().func_77973_b() == XP_BOOK) {
            event.setCanceled(true);
        }

    }
}

 

i read somewhere about "mappings" but i don't know about

[Draco18s]

21 minutes ago, costa99 said:

i read somewhere about "mappings" but i don't know about

Search the forums for "MCP names" "SRG names" and "Notch names" (or "Mojang names").

There's like nine people who've asked that same question just in the last nine months.

 

Mappings are the SRG -> MCP names translation guide.

[costa99]

43 minutes ago, Draco18s said:

Search the forums for "MCP names" "SRG names" and "Notch names" (or "Mojang names").

I searched and i understand how it works thanks.

 

But my question is if  this mod use this functions means that who made this mod has the mcp name of it and why i didn't too?

I'm not up to date? 

[Draco18s]

If you downloaded and decompiled someone else's mod, you will never see MCP names.