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, 86 insertions, 0 deletions

diff --git a/azalea-protocol/src/packets/game/s_interact.rs b/azalea-protocol/src/packets/game/s_interact.rs
new file mode 100755
index 00000000..cdd9cba5
--- /dev/null
+++ b/azalea-protocol/src/packets/game/s_interact.rs
@@ -0,0 +1,86 @@
+use std::io::{Cursor, Write};
+
+use azalea_buf::{AzBuf, AzaleaRead, AzaleaReadVar, AzaleaWrite, AzaleaWriteVar};
+use azalea_core::position::Vec3;
+use azalea_protocol_macros::ServerboundGamePacket;
+
+use crate::packets::BufReadError;
+
+#[derive(Clone, Debug, AzBuf, ServerboundGamePacket)]
+pub struct ServerboundInteract {
+    #[var]
+    pub entity_id: u32,
+    pub action: ActionType,
+    /// Whether the player is sneaking
+    pub using_secondary_action: bool,
+}
+
+#[derive(Clone, Copy, Debug)]
+pub enum ActionType {
+    Interact {
+        hand: InteractionHand,
+    },
+    Attack,
+    InteractAt {
+        location: Vec3,
+        hand: InteractionHand,
+    },
+}
+
+impl AzaleaWrite for ActionType {
+    fn azalea_write(&self, buf: &mut impl Write) -> Result<(), std::io::Error> {
+        match self {
+            ActionType::Interact { hand } => {
+                0u32.azalea_write_var(buf)?;
+                hand.azalea_write(buf)?;
+            }
+            ActionType::Attack => {
+                1u32.azalea_write_var(buf)?;
+            }
+            ActionType::InteractAt { location, hand } => {
+                2u32.azalea_write_var(buf)?;
+                (location.x as f32).azalea_write(buf)?;
+                (location.y as f32).azalea_write(buf)?;
+                (location.z as f32).azalea_write(buf)?;
+                hand.azalea_write(buf)?;
+            }
+        }
+        Ok(())
+    }
+}
+
+impl AzaleaRead for ActionType {
+    fn azalea_read(buf: &mut Cursor<&[u8]>) -> Result<Self, BufReadError> {
+        let action_type = u32::azalea_read_var(buf)?;
+        match action_type {
+            0 => {
+                let hand = InteractionHand::azalea_read(buf)?;
+                Ok(ActionType::Interact { hand })
+            }
+            1 => Ok(ActionType::Attack),
+            2 => {
+                let x = f32::azalea_read(buf)?;
+                let y = f32::azalea_read(buf)?;
+                let z = f32::azalea_read(buf)?;
+                let hand = InteractionHand::azalea_read(buf)?;
+                Ok(ActionType::InteractAt {
+                    location: Vec3 {
+                        x: f64::from(x),
+                        y: f64::from(y),
+                        z: f64::from(z),
+                    },
+                    hand,
+                })
+            }
+            _ => Err(BufReadError::UnexpectedEnumVariant {
+                id: action_type as i32,
+            }),
+        }
+    }
+}
+
+#[derive(AzBuf, Clone, Copy, Debug)]
+pub enum InteractionHand {
+    MainHand = 0,
+    OffHand = 1,
+}