[1.6.4] How to make "meta items" based on NBT Tags.

[SackCastellon]

I want to make a "meta items" based on NBT Tags.

 

Anyone knows how?

[Draco18s]

https://github.com/Draco18s/Artifacts

[SackCastellon]

https://github.com/Draco18s/Artifacts

 

Ok, cool, but can you explain it a little bit?

 

Please

[Draco18s]

I need a better idea of what the goal you have in mind is, first.

[SackCastellon]

I need a better idea of what the goal you have in mind is, first.

 

OK, i want to create items like the ones which have your mod, not artfacts or something like it, items that can have different damages (like tools, every tool have a different max damage) and also items that are "normal" items (with lore, multiple render passes, etc.)

 

I hope you can help me 

[Draco18s]

Ok, so to start off, all you're talking about is making new items that behave in different ways, each one will have its own class.  Different maximum damage is simply just a property of that class instance.  You haven't even gotten to the point where you need NBT data yet.

 

My artifacts are unique in that they all use the same class, and the effects ("throws fireballs" "heals the player" "causes lightning") are handled separately with key-value data stored in the NBT.

[Moritz]

Feom that what i read you could create a interface that handle every case and you can store the maxDamage in every class.

And the Item call the interface and call the functions you implemented. Like BC Pipes.

Its a little bit advanced Programming but with that you have a modular Item.

 

 

[GotoLink]

Override methods in Item which have ItemStack as argument.

Add different behaviour according to that ItemStack NBTTagCompound.

 

Example:

@Override
public int getMaxDamage(ItemStack stack)
    {
if(stack.hasTagCompound() && stack.stackTagCompound.hasKey("SubType")){
return new ItemBehavior(stack.getKey("SubType")).getMaxDamage();
}
        else 
return super.getMaxDamage(stack);
    }

[SackCastellon]

Ok, so to start off, all you're talking about is making new items that behave in different ways, each one will have its own class.  Different maximum damage is simply just a property of that class instance.  You haven't even gotten to the point where you need NBT data yet.

 

My artifacts are unique in that they all use the same class, and the effects ("throws fireballs" "heals the player" "causes lightning") are handled separately with key-value data stored in the NBT.

 

Yes, i know it can be make without NBT, but using various IDs, but i want to make this items using only one ID, and the cause that i don't use metadata is that the tool are already using it to store damage.

 

P.D.: I think i should have said  if before 

[Draco18s]

So use an NBT tag to store your "metadata" and just use that value everywhere the Item class calls a function and passes an ItemStack.

[SackCastellon]

So use an NBT tag to store your "metadata" and just use that value everywhere the Item class calls a function and passes an ItemStack.

 

Yes, basically i want it

[Draco18s]

So start coding o..o

[SackCastellon]

So start coding o..o

 

Ohh, no. I don't know what i were thinking about, I want to create items which will have a common class, like your artifacts. 

[Draco18s]

So look at Artifacts.  You're going to be using almost the entire code base.  "Components" you'll be replacing to be the effects YOU want, and the FactoryArtifacts is going to need to be changed as well (as its based on the assumption that things are random).