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, 53 insertions, 0 deletions

diff --git a/azalea-protocol/src/packets/game/c_player_abilities.rs b/azalea-protocol/src/packets/game/c_player_abilities.rs
new file mode 100755
index 00000000..c32a99fe
--- /dev/null
+++ b/azalea-protocol/src/packets/game/c_player_abilities.rs
@@ -0,0 +1,53 @@
+use std::io::{Cursor, Write};
+
+use azalea_buf::{AzBuf, BufReadError};
+use azalea_buf::{AzaleaRead, AzaleaWrite};
+use azalea_core::bitset::FixedBitSet;
+use azalea_protocol_macros::ClientboundGamePacket;
+
+#[derive(Clone, Debug, AzBuf, ClientboundGamePacket)]
+pub struct ClientboundPlayerAbilities {
+    pub flags: PlayerAbilitiesFlags,
+    pub flying_speed: f32,
+    /// Used for the fov
+    pub walking_speed: f32,
+}
+
+#[derive(Clone, Debug)]
+pub struct PlayerAbilitiesFlags {
+    pub invulnerable: bool,
+    pub flying: bool,
+    pub can_fly: bool,
+    pub instant_break: bool,
+}
+
+impl AzaleaRead for PlayerAbilitiesFlags {
+    fn azalea_read(buf: &mut Cursor<&[u8]>) -> Result<Self, BufReadError> {
+        let set = FixedBitSet::<4>::azalea_read(buf)?;
+        Ok(PlayerAbilitiesFlags {
+            invulnerable: set.index(0),
+            flying: set.index(1),
+            can_fly: set.index(2),
+            instant_break: set.index(3),
+        })
+    }
+}
+
+impl AzaleaWrite for PlayerAbilitiesFlags {
+    fn azalea_write(&self, buf: &mut impl Write) -> Result<(), std::io::Error> {
+        let mut set = FixedBitSet::<4>::new();
+        if self.invulnerable {
+            set.set(0);
+        }
+        if self.flying {
+            set.set(1);
+        }
+        if self.can_fly {
+            set.set(2);
+        }
+        if self.instant_break {
+            set.set(3);
+        }
+        set.azalea_write(buf)
+    }
+}