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, 63 insertions, 0 deletions

diff --git a/azalea-protocol/src/packets/game/s_set_command_block.rs b/azalea-protocol/src/packets/game/s_set_command_block.rs
new file mode 100755
index 00000000..dacb79de
--- /dev/null
+++ b/azalea-protocol/src/packets/game/s_set_command_block.rs
@@ -0,0 +1,63 @@
+use std::io::Cursor;
+
+use azalea_buf::{AzBuf, AzaleaRead, BufReadError};
+use azalea_core::{bitset::FixedBitSet, position::BlockPos};
+use azalea_protocol_macros::ServerboundGamePacket;
+
+use crate::packets::AzaleaWrite;
+
+#[derive(Clone, Debug, ServerboundGamePacket)]
+pub struct ServerboundSetCommandBlock {
+    pub pos: BlockPos,
+    pub command: String,
+    pub mode: Mode,
+
+    pub track_output: bool,
+    pub conditional: bool,
+    pub automatic: bool,
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum Mode {
+    Sequence = 0,
+    Auto = 1,
+    Redstone = 2,
+}
+
+impl AzaleaRead for ServerboundSetCommandBlock {
+    fn azalea_read(buf: &mut Cursor<&[u8]>) -> Result<Self, BufReadError> {
+        let pos = BlockPos::azalea_read(buf)?;
+        let command = String::azalea_read(buf)?;
+        let mode = Mode::azalea_read(buf)?;
+
+        let set = FixedBitSet::<3>::azalea_read(buf)?;
+        Ok(Self {
+            pos,
+            command,
+            mode,
+            track_output: set.index(0),
+            conditional: set.index(1),
+            automatic: set.index(2),
+        })
+    }
+}
+
+impl AzaleaWrite for ServerboundSetCommandBlock {
+    fn azalea_write(&self, buf: &mut impl std::io::Write) -> Result<(), std::io::Error> {
+        self.pos.azalea_write(buf)?;
+        self.command.azalea_write(buf)?;
+        self.mode.azalea_write(buf)?;
+
+        let mut set = FixedBitSet::<3>::new();
+        if self.track_output {
+            set.set(0);
+        }
+        if self.conditional {
+            set.set(1);
+        }
+        if self.automatic {
+            set.set(2);
+        }
+        set.azalea_write(buf)
+    }
+}