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, 98 insertions, 0 deletions

diff --git a/azalea-protocol/src/packets/game/s_set_structure_block.rs b/azalea-protocol/src/packets/game/s_set_structure_block.rs
new file mode 100755
index 00000000..7f05a3a7
--- /dev/null
+++ b/azalea-protocol/src/packets/game/s_set_structure_block.rs
@@ -0,0 +1,98 @@
+use std::io::{Cursor, Write};
+
+use azalea_buf::AzBuf;
+use azalea_buf::{AzaleaRead, AzaleaWrite};
+use azalea_core::{bitset::FixedBitSet, position::BlockPos};
+use azalea_protocol_macros::ServerboundGamePacket;
+
+use crate::packets::BufReadError;
+
+#[derive(Clone, Debug, AzBuf, ServerboundGamePacket)]
+pub struct ServerboundSetStructureBlock {
+    pub pos: BlockPos,
+    pub update_type: UpdateType,
+    pub mode: StructureMode,
+    pub name: String,
+    pub offset: BytePosition,
+    pub size: BytePosition,
+    pub mirror: Mirror,
+    pub rotation: Rotation,
+    pub data: String,
+    pub integrity: f32,
+    #[var]
+    pub seed: u64,
+    pub flags: Flags,
+}
+
+#[derive(Clone, Debug, AzBuf)]
+pub struct BytePosition {
+    pub x: u8,
+    pub y: u8,
+    pub z: u8,
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum UpdateType {
+    UpdateData = 0,
+    SaveArea = 1,
+    LoadArea = 2,
+    ScanArea = 3,
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum StructureMode {
+    Save = 0,
+    Load = 1,
+    Corner = 2,
+    Data = 3,
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum Mirror {
+    None = 0,
+    LeftRight = 1,
+    FrontBack = 2,
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum Rotation {
+    None = 0,
+    Clockwise90 = 1,
+    Clockwise180 = 2,
+    Counterclockwise90 = 3,
+}
+
+#[derive(Debug, Clone)]
+pub struct Flags {
+    pub ignore_entities: bool,
+    pub show_air: bool,
+    pub show_bounding_box: bool,
+}
+
+impl AzaleaRead for Flags {
+    fn azalea_read(buf: &mut Cursor<&[u8]>) -> Result<Self, BufReadError> {
+        let set = FixedBitSet::<3>::azalea_read(buf)?;
+        Ok(Self {
+            ignore_entities: set.index(0),
+            show_air: set.index(1),
+            show_bounding_box: set.index(2),
+        })
+    }
+}
+
+impl AzaleaWrite for Flags {
+    fn azalea_write(&self, buf: &mut impl Write) -> Result<(), std::io::Error> {
+        let mut set = FixedBitSet::<3>::new();
+        if self.ignore_entities {
+            set.set(0);
+        }
+        if self.show_air {
+            set.set(1);
+        }
+        if self.show_bounding_box {
+            set.set(2);
+        }
+        set.azalea_write(buf)?;
+        Ok(())
+    }
+}