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, 37 insertions, 0 deletions

diff --git a/azalea-protocol/src/packets/game/c_add_entity.rs b/azalea-protocol/src/packets/game/c_add_entity.rs
new file mode 100755
index 00000000..cf0adeb7
--- /dev/null
+++ b/azalea-protocol/src/packets/game/c_add_entity.rs
@@ -0,0 +1,37 @@
+use azalea_buf::AzBuf;
+use azalea_core::{position::Vec3, resource_location::ResourceLocation};
+use azalea_entity::{metadata::apply_default_metadata, EntityBundle};
+use azalea_protocol_macros::ClientboundGamePacket;
+use uuid::Uuid;
+
+#[derive(Clone, Debug, AzBuf, ClientboundGamePacket)]
+pub struct ClientboundAddEntity {
+    /// The id of the entity.
+    #[var]
+    pub id: u32,
+    pub uuid: Uuid,
+    pub entity_type: azalea_registry::EntityKind,
+    pub position: Vec3,
+    pub x_rot: i8,
+    pub y_rot: i8,
+    pub y_head_rot: i8,
+    #[var]
+    pub data: u32,
+    pub x_vel: i16,
+    pub y_vel: i16,
+    pub z_vel: i16,
+}
+
+impl ClientboundAddEntity {
+    /// Make the entity into a bundle that can be inserted into the ECS. You
+    /// must apply the metadata after inserting the bundle with
+    /// [`Self::apply_metadata`].
+    pub fn as_entity_bundle(&self, world_name: ResourceLocation) -> EntityBundle {
+        EntityBundle::new(self.uuid, self.position, self.entity_type, world_name)
+    }
+
+    /// Apply the default metadata for the given entity.
+    pub fn apply_metadata(&self, entity: &mut bevy_ecs::system::EntityCommands) {
+        apply_default_metadata(entity, self.entity_type);
+    }
+}