feat(client): bring a few commands from v0.1.0

src/lua/client/interaction.rs

@@ -1,5 +1,11 @@
 use super::{Client, Vec3};
-use azalea::{BlockPos, BotClientExt, attack::AttackEvent, world::MinecraftEntityId};
+use azalea::{
+    BlockPos, BotClientExt,
+    attack::AttackEvent,
+    protocol::packets::game::{ServerboundUseItem, s_interact::InteractionHand},
+    world::MinecraftEntityId,
+};
+use log::error;
 use mlua::{Lua, Result, UserDataRef};
 
 pub async fn attack(_lua: Lua, client: UserDataRef<Client>, entity_id: u32) -> Result<()> {
@@ -60,3 +66,19 @@ pub fn start_mining(_lua: &Lua, client: &mut Client, position: Vec3) -> Result<(
     ));
     Ok(())
 }
+
+pub fn use_item(_lua: &Lua, client: &Client, hand: Option<u8>) -> Result<()> {
+    let d = client.direction();
+    if let Err(error) = client.write_packet(ServerboundUseItem {
+        hand: match hand {
+            Some(1) => InteractionHand::OffHand,
+            _ => InteractionHand::MainHand,
+        },
+        sequence: 0,
+        yaw: d.0,
+        pitch: d.1,
+    }) {
+        error!("failed to send UseItem packet: {error:?}");
+    }
+    Ok(())
+}