Refactor azalea-protocol (#190)

* start updating to 1.21.4

* fix block codegen and stop using block data from burger

* rename packet related modules and structs to be simpler

* ItemSlot -> ItemStack for more consistency with mojmap

* .get() -> .into_packet()

* simplify declare_state_packets by removing packet ids

* rename read_from and write_into to azalea_read and azalea_write

* rename McBufReadable and McBufWritable to AzaleaRead and AzaleaWrite

* McBuf -> AzBuf

* remove most uses of into_variant

* update codegen and use resourcelocation names for packets

* implement #[limit(i)] attribute for AzBuf derive macro

* fixes for 1.21.4

* fix examples

* update some physics code and fix ChatType

* remove unused imports in codegen

* re-add some things to migrate.py and update +mc version numbers automatically

* downgrade to 1.21.3 lol

1 files changed, 1 insertions, 1 deletions

diff --git a/azalea-physics/src/collision/shape.rs b/azalea-physics/src/collision/shape.rs
index fab8d8dc..3f584952 100755
--- a/azalea-physics/src/collision/shape.rs
+++ b/azalea-physics/src/collision/shape.rs
@@ -423,7 +423,7 @@ impl VoxelShape {
             return None;
         }
         let vector = to - from;
-        if vector.length_sqr() < EPSILON {
+        if vector.length_squared() < EPSILON {
             return None;
         }
         let right_after_start = from + &(vector * 0.0001);