NBT Data help for items

[Mecblader]

Hello I'm making a mod and I have an item that will eventually place a block according to the NBT data of the item. Basically by default the tag currentColor should be 0 at default and every time the player shift right clicks it should place the correct block. The issue that I'm having is that I can't seem to figure out how to add a tag to an item and increase it every time. I would appreciate it if someone could tell be how to add a tag to an item, set the default value, and how to make it increase, or possibly a tutorial giving the basic lines of code needed to do this. I am not asking for anyone to write it for me, I am just asking how to do this. Any help is appreciated.

[Draco18s]

        public NBTTagCompound createDefault()
        {
                NBTTagCompound nbt = new NBTTagCompound("tag");
                nbt.setInteger("someStringIdentifier",0);
          }

[TheGreyGhost]

Hi

 

Important to remember that you'll need to add NBT to the ItemStack not the Item (you know what the difference is, yeah?)

 

For vanilla examples, see ItemStack.setRepairCost(), ItemStack.setItemName, ItemStack.getDisplayName, etc.

 

-TGG

[Mecblader]

Sorry, but could you go a bit more into details. I know java but, I don't really understand nbt tags. If I wanted to call this method would I just call this in the onItemUse method and how do I get the current number for this tag and would I just put:

 

nbt.setInteger("currentColorInt",0);

 

if I wanted to change the value. Sorry for asking so many questions, but I have been having trouble understanding the nbt data system because some of the tutorials that I have looked at do not explain it well enough and they are all for tileEntities.

[Draco18s]

if I wanted to change the value. Sorry for asking so many questions, but I have been having trouble understanding the nbt data system because some of the tutorials that I have looked at do not explain it well enough and they are all for tileEntities.

 

int someColor = nbt.getInteger("currentColorInt");
someColor++;
nbt.setInteger("currentColorInt",someColor);