Position of a block, where x and z are signed and y is always positive (as blocks cannot be placed under 0).
Chunk's blocks, lights and other immutable data.
Informations about a player that will be added to the player's list in the pause menu.
A game rule that prevents the client from doing client-side actions and animations.
Section of a chunk with informations about blocks and lights. The array of bytes are always ordered xzy.
Player's skin.
Informations about a slot, that, if not empty, contains an item id and meta, the count (0-255) and, optionally, an nbt tag for enchantments, custom name, colours and more.