NBT Compound in ItemStack seem to not exist

[Spyeedy]

So I'm having a capability attached onto my Item to store NBT datas. However, each time I get the capability from the ItemStack, it seems to think that the stack has no tag compound at all. So it keeps resetting the data.

 

https://gist.github.com/Spyeedy/23e51fcf00f4ec2aec4a263943af1d08

[Draco18s]

1. Capabilities do not store NBT data. NBT is a serialization format (like txt or json or xml).

2. Your read and write NBT methods do fuck all, what did you expect to happen?

[V0idWa1k3r]

What's the point in doing capabilities the way you are doing it here? If you want to manipulate the NBT then there is no need for a capability and vice-versa.

Edited May 12, 2019 by V0idWa1k3r

[Spyeedy]

7 minutes ago, Draco18s said:

1. Capabilities do not store NBT data. NBT is a serialization format (like txt or json or xml).

2. Your read and write NBT methods do fuck all, what did you expect to happen?

I see, well, someone recommended to me to use capabilities. 

[Draco18s]

5 hours ago, Spyeedy said:

I see, well, someone recommended to me to use capabilities. 

Yes. You should.

 

Here's the thing:

 

Would you rather deal with integers and floats?

 

Or the zip-compressed string representation thereof?