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, 143 insertions, 0 deletions

diff --git a/azalea-protocol/src/packets/game/c_boss_event.rs b/azalea-protocol/src/packets/game/c_boss_event.rs
new file mode 100755
index 00000000..e54ab59f
--- /dev/null
+++ b/azalea-protocol/src/packets/game/c_boss_event.rs
@@ -0,0 +1,143 @@
+use std::io::Cursor;
+use std::io::Write;
+
+use azalea_buf::{AzBuf, AzaleaRead, AzaleaReadVar, AzaleaWrite, AzaleaWriteVar, BufReadError};
+use azalea_chat::FormattedText;
+use azalea_core::bitset::FixedBitSet;
+use azalea_protocol_macros::ClientboundGamePacket;
+use uuid::Uuid;
+
+#[derive(Clone, Debug, AzBuf, ClientboundGamePacket)]
+pub struct ClientboundBossEvent {
+    pub id: Uuid,
+    pub operation: Operation,
+}
+
+#[derive(Clone, Debug)]
+pub enum Operation {
+    Add(AddOperation),
+    Remove,
+    UpdateProgress(f32),
+    UpdateName(FormattedText),
+    UpdateStyle(Style),
+    UpdateProperties(Properties),
+}
+
+impl AzaleaRead for Operation {
+    fn azalea_read(buf: &mut Cursor<&[u8]>) -> Result<Self, BufReadError> {
+        let operation_id = u32::azalea_read_var(buf)?;
+        Ok(match operation_id {
+            0 => Operation::Add(AddOperation::azalea_read(buf)?),
+            1 => Operation::Remove,
+            2 => Operation::UpdateProgress(f32::azalea_read(buf)?),
+            3 => Operation::UpdateName(FormattedText::azalea_read(buf)?),
+            4 => Operation::UpdateStyle(Style::azalea_read(buf)?),
+            5 => Operation::UpdateProperties(Properties::azalea_read(buf)?),
+            _ => {
+                return Err(BufReadError::UnexpectedEnumVariant {
+                    id: operation_id as i32,
+                })
+            }
+        })
+    }
+}
+
+impl AzaleaWrite for Operation {
+    fn azalea_write(&self, buf: &mut impl Write) -> Result<(), std::io::Error> {
+        match self {
+            Operation::Add(add) => {
+                0u32.azalea_write_var(buf)?;
+                add.azalea_write(buf)?;
+            }
+            Operation::Remove => {
+                1u32.azalea_write_var(buf)?;
+            }
+            Operation::UpdateProgress(progress) => {
+                2u32.azalea_write_var(buf)?;
+                progress.azalea_write(buf)?;
+            }
+            Operation::UpdateName(name) => {
+                3u32.azalea_write_var(buf)?;
+                name.azalea_write(buf)?;
+            }
+            Operation::UpdateStyle(style) => {
+                4u32.azalea_write_var(buf)?;
+                style.azalea_write(buf)?;
+            }
+            Operation::UpdateProperties(properties) => {
+                5u32.azalea_write_var(buf)?;
+                properties.azalea_write(buf)?;
+            }
+        }
+        Ok(())
+    }
+}
+
+#[derive(Clone, Debug, AzBuf)]
+pub struct AddOperation {
+    pub name: FormattedText,
+    pub progress: f32,
+    pub style: Style,
+    pub properties: Properties,
+}
+
+#[derive(Clone, Debug, AzBuf)]
+pub struct Style {
+    pub color: BossBarColor,
+    pub overlay: BossBarOverlay,
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum BossBarColor {
+    Pink = 0,
+    Blue = 1,
+    Red = 2,
+    Green = 3,
+    Yellow = 4,
+    Purple = 5,
+    White = 6,
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum BossBarOverlay {
+    Progress = 0,
+    Notched6 = 1,
+    Notched10 = 2,
+    Notched12 = 3,
+    Notched20 = 4,
+}
+
+#[derive(Clone, Debug)]
+pub struct Properties {
+    pub darken_screen: bool,
+    pub play_music: bool,
+    pub create_world_fog: bool,
+}
+
+impl AzaleaRead for Properties {
+    fn azalea_read(buf: &mut Cursor<&[u8]>) -> Result<Self, BufReadError> {
+        let set = FixedBitSet::<3>::azalea_read(buf)?;
+        Ok(Self {
+            darken_screen: set.index(0),
+            play_music: set.index(1),
+            create_world_fog: set.index(2),
+        })
+    }
+}
+
+impl AzaleaWrite for Properties {
+    fn azalea_write(&self, buf: &mut impl Write) -> Result<(), std::io::Error> {
+        let mut set = FixedBitSet::<3>::new();
+        if self.darken_screen {
+            set.set(0);
+        }
+        if self.play_music {
+            set.set(1);
+        }
+        if self.create_world_fog {
+            set.set(2);
+        }
+        set.azalea_write(buf)?;
+        Ok(())
+    }
+}