Minecraft guides — page 3

A .mrpack is a manifest, not an archive of mods. Unzipping it gives you a JSON file and no jars. Here is what is actually inside and what a converter has to do.

One wrong integer makes Minecraft grey out your pack. Here is the format-to-version mapping, the supported_formats range that avoids the whole problem, and where the file must sit.

Triangulation works with two throws, not six eyes of guesswork. Here is the technique, the two mistakes that make it fail, and the coordinate maths behind it.

A loom allows six layers but a give command allows more. Here is how layers stack, which patterns need a banner pattern item, and how to duplicate a banner exactly.

Mobs stop spawning because the cap is full of something else, somewhere else. Here is how the per-category cap works, what counts toward it, and how to empty it.

locate searches a bounded radius and gives up rather than looking forever. Here is the difference between structure, biome and poi, and what to do when it fails.

A datapack that does not appear in /datapack list has a path problem, not a code problem. Here is the exact tree, the namespace rule, and the folders that got renamed.

Enchantments became datapack JSON, so a custom one needs no mod. Here is the file shape, the effect components that actually do something, and how to make it obtainable.

The four numbers after the position are not a direction. Here is what delta and speed do, why count=0 behaves completely differently, and how to aim a particle.

A head stores a skin snapshot, not a live link. Here is the profile component, why an old head shows the wrong skin, and how UUID lookup fits in.