Understanding Opcode and Data

I’m trying to understand opcodes but working with nonsense numbers on my screen is going to blow my mind. Is there any document to cross codes with each other to learn opcode job? Like
(Opcode) 0xB021 = PICK_UP_ITEM or something. If not then I will keep going on with my cave man logic. Thanks in advance for your help.


I don’t know if there’s such a thing yet, I had the same issues about 10 years ago :smiley:
The maybe hardest but most rewarding way would be decompiling the client and reverse engineering opcodes and packet data parsing.