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--- tutorial:primer [2024/07/04 16:30] – mineblock11
+++ tutorial:primer [2024/08/25 11:50] (current) – solidblock
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 Minecraft: Java Edition is a huge project, with years and years of code built on top of each other. It can seem chaotic (because it is), but there are a few key concepts that are (mostly) consistent across the board.
-=== Registries ===
+==== Registries ====
 Most "features" (things you might want to add) in the game (blocks, items, screens, entities, chunk generators, etc.) are loaded into Registries when the game is loaded. For example, each ''Item'' has a single static instance that is initialized when the game starts, and is put into the item registry. The game uses that instance to determine the properties that ''ItemStack''s (the memory representation of the items you can hold in your inventory) of that item have. **If you add something to the game, you probably have to register it.** There are exceptions to this rule, however: some features in Minecraft are **data-driven**, meaning that they can be defined purely in terms of data (as opposed to code). If you've ever wondered why datapacks can add some things but not others, this is why: datapacks can only add data-driven content. Some examples of data-driven content in Minecraft include biomes, textures, *some* chunk generators, and crafting recipes. When a world with a datapack is loaded, the game automatically adds these features to a special transient registry only used while that world is loaded. If you've developed datapacks before, you can integrate datapacks into your mods very easily, which makes some content easier to create. You can even add your own data-drivable content that other people can make datapacks for using Codecs.
-=== Sides ===
+==== Sides ====
 Minecraft's processing is split between two threads, commonly called "sides": the server side, and the client side. The client always runs on a player's computer and handles rendering and input. The server can run either on its own as a dedicated server (what you probably think of as a "Minecraft server"), or, in singleplayer, on the player's computer along with the client as an integrated server. The server handles everything the client doesn't-- inventories, the world itself, et cetera.