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Posted

Hello guys.

 

I have one problem. There is a mod for Minecraft 1.7.2 and the problem is that I want to downgrade it to 1.6.4, because its easier to downgrade it instead of working with the buggy 1.6.4 source and because of many guys from the community want a 1.6.4 version. (well it takes not so much time...) Oh and aswell, its allowed from the mod creators.

 

So my problem: In Minecraft Forge 1.7.2 there is a class called "net.minecraftforge.common.util.Constants". https://github.com/MinecraftForge/MinecraftForge/blob/master/src/main/java/net/minecraftforge/common/util/Constants.java

I want now to know if such a class exits in 1.6.4 and if not what must I change here?

 

    @Override
    public void readFromNBT(NBTTagCompound nbtTagCompound)
    {
        super.readFromNBT(nbtTagCompound);
        this.cityName = nbtTagCompound.getString("cityName");
        NBTTagList nbtTagOwnersList = nbtTagCompound.getTagList("owners", Constants.NBT.TAG_COMPOUND);
        this.owners = new ArrayList<UUID>();
        for(int i = 0; i < nbtTagOwnersList.tagCount(); i++)
        {
            NBTTagCompound nbtTagOwnersCompound = nbtTagOwnersList.getCompoundTagAt(i);
            UUID uuid = UUID.fromString(nbtTagOwnersCompound.getString("owner"));
            owners.add(i, uuid);
            System.out.println("UUID Size = " + this.owners.size());
            System.out.println("UUID name = " + this.owners.get(i).toString());
        }
    }

Oh and is it right that I must change "UUID" to EntityPlayer?

 

Bektor

Developer of Primeval Forest.

  • Author

I know it's easier but UUID? Wtf is that? What are you trying to do?

Read up on the newest updates by Mojang. Players are no longer identified by their username, but by a UUID (google it if you don't know what it is -.-), to ultimately support changing your username.

 

@OP: The Constants class is not present in 1.6.4 yet, because it's not technically needed. Only in 1.7 take NBTTagLists their component type.

With UUIDs, yes, use usernames for that in 1.6.

Ok, thanks. But which class must I use for the usernames? I think its EntityPlayer, but I'm not 100% sure and so I want not to test it out, because if it isn't EntityPlayer then I have to change a log of code.

Oh and how must then this line look like?

NBTTagList nbtTagOwnersList = nbtTagCompound.getTagList("owners", Constants.NBT.TAG_COMPOUND);

Must I only remove the "Constants.NBT.TAG_COMPOUND" or must I replace it with something different or change it? And if yes, in what must I change this line?

Developer of Primeval Forest.

  • Author

Ok, I found some other things that are different from 1.7 to 1.6.

 

So how must look like this code in 1.6?

    @Override
    public void readFromNBT(NBTTagCompound nbtTagCompound)
    {
        super.readFromNBT(nbtTagCompound);
        this.cityName = nbtTagCompound.getString("cityName");
        NBTTagList nbtTagOwnersList = nbtTagCompound.getTagList("owners", Constants.NBT.TAG_COMPOUND);
        this.owners = new ArrayList<UUID>();
        for(int i = 0; i < nbtTagOwnersList.tagCount(); i++)
        {
            NBTTagCompound nbtTagOwnersCompound = nbtTagOwnersList.getCompoundTagAt(i);
            UUID uuid = UUID.fromString(nbtTagOwnersCompound.getString("owner"));
            owners.add(i, uuid);
            System.out.println("UUID Size = " + this.owners.size());
            System.out.println("UUID name = " + this.owners.get(i).toString());
        }
    }

 

I hope that you guys can help me!

Bektor

Developer of Primeval Forest.

  • Author

I won't give you fully working code, you need to do some work yourself. UUIDs are Strings in 1.6 (containing the username). And for getTagList you can just remove the 2nd parameter.

Ok, but what is with "getCompoundTagAt"?

NBTTagCompound nbtTagOwnersCompound = nbtTagOwnersList.getCompoundTagAt(i);

Developer of Primeval Forest.

  • Author

The method name probably changed. Search "getTag" or similar.

Well I searched already but I dindn't find a method that do the same thing, only methods for 1.7 but nothing for 1.6.

Developer of Primeval Forest.

  • Author

Please, use your brain. It's called

tagAt

in 1.6.

Ok, thanks. Well now I don't get an error after I changed some more lines that gaves me an error after I used

tagAt

.

I hope that this will work, because I can't test it, because there I need to add many many other lines...

 

"Old" code: (1.7.2)

    @Override
    public void readFromNBT(NBTTagCompound nbtTagCompound)
    {
        super.readFromNBT(nbtTagCompound);
        this.cityName = nbtTagCompound.getString("cityName");
        NBTTagList nbtTagOwnersList = nbtTagCompound.getTagList("owners", Constants.NBT.TAG_COMPOUND);
        this.owners = new ArrayList<UUID>();
        for(int i = 0; i < nbtTagOwnersList.tagCount(); i++)
        {
            NBTTagCompound nbtTagOwnersCompound = nbtTagOwnersList.getCompoundTagAt(i);
            UUID uuid = UUID.fromString(nbtTagOwnersCompound.getString("owner"));
            owners.add(i, uuid);
            System.out.println("UUID Size = " + this.owners.size());
            System.out.println("UUID name = " + this.owners.get(i).toString());
        }
    }

Changed code: (1.6.4)

    
@Override
    public void readFromNBT(NBTTagCompound nbtTagCompound)
    {
        super.readFromNBT(nbtTagCompound);
        this.cityName = nbtTagCompound.getString("cityName");
        NBTTagList nbtTagOwnersList = nbtTagCompound.getTagList("owners");
        this.owners = new ArrayList<UUID>();
        for(int i = 0; i < nbtTagOwnersList.tagCount(); i++)
        {
            NBTBase nbtTagOwnersCompound = nbtTagOwnersList.tagAt(i);
            UUID uuid = UUID.fromString(((NBTTagCompound) nbtTagOwnersCompound).getString("owner"));
            owners.add(i, uuid);
            System.out.println("UUID Size = " + this.owners.size());
            System.out.println("UUID name = " + this.owners.get(i).toString());
        }
    }

 

Developer of Primeval Forest.

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