Add World::find_block (#80)

* start adding World::find_block

* keep working on find_block

* BlockStates

* fix sorting

* update examples that use find_one_block

* azalea_block::properties

* fix tests

* add a gotoblock command to testbot

5 files changed, 31 insertions, 12 deletions

diff --git a/azalea/examples/testbot.rs b/azalea/examples/testbot.rs
index 7b7b32b0..a25b28e3 100644
--- a/azalea/examples/testbot.rs
+++ b/azalea/examples/testbot.rs
@@ -52,17 +52,17 @@ async fn main() -> anyhow::Result<()> {
     }
 
     loop {
-        // let e = SwarmBuilder::new()
-        //     .add_accounts(accounts.clone())
-        //     .set_handler(handle)
-        //     .set_swarm_handler(swarm_handle)
-        //     .join_delay(Duration::from_millis(1000))
-        //     .start("localhost")
-        //     .await;
-        let e = azalea::ClientBuilder::new()
+        let e = SwarmBuilder::new()
+            .add_accounts(accounts.clone())
             .set_handler(handle)
-            .start(Account::offline("bot"), "localhost")
+            .set_swarm_handler(swarm_handle)
+            .join_delay(Duration::from_millis(1000))
+            .start("localhost")
             .await;
+        // let e = azalea::ClientBuilder::new()
+        //     .set_handler(handle)
+        //     .start(Account::offline("bot"), "localhost")
+        //     .await;
         eprintln!("{e:?}");
     }
 }
@@ -140,6 +140,25 @@ async fn handle(mut bot: Client, event: Event, _state: State) -> anyhow::Result<
                     "lag" => {
                         std::thread::sleep(Duration::from_millis(1000));
                     }
+                    "findblock" => {
+                        let target_pos = bot.world().read().find_block(
+                            bot.component::<Position>(),
+                            &azalea_registry::Block::DiamondBlock.into(),
+                        );
+                        bot.chat(&format!("target_pos: {target_pos:?}",));
+                    }
+                    "gotoblock" => {
+                        let target_pos = bot.world().read().find_block(
+                            bot.component::<Position>(),
+                            &azalea_registry::Block::DiamondBlock.into(),
+                        );
+                        if let Some(target_pos) = target_pos {
+                            // +1 to stand on top of the block
+                            bot.goto(BlockPosGoal::from(target_pos.up(1)));
+                        } else {
+                            bot.chat("no diamond block found");
+                        }
+                    }
                     _ => {}
                 }
             }
diff --git a/azalea/examples/todo/README.md b/azalea/examples/todo/README.md
new file mode 100644
index 00000000..ab31cf22
--- /dev/null
+++ b/azalea/examples/todo/README.md
@@ -0,0 +1 @@
+These examples don't work yet and were only written to help design APIs. They will work in the future (probably with minor changes).
diff --git a/azalea/examples/craft_dig_straight_down.rs b/azalea/examples/todo/craft_dig_straight_down.rs
index 0632776e..4c980ccf 100755..100644
--- a/azalea/examples/craft_dig_straight_down.rs
+++ b/azalea/examples/todo/craft_dig_straight_down.rs
@@ -38,7 +38,7 @@ async fn handle(bot: Client, event: Event, state: State) -> anyhow::Result<()> {
                 bot.goto(pathfinder::Goals::NearXZ(5, azalea::BlockXZ(0, 0)))
                     .await;
                 let chest = bot
-                    .open_container(&bot.world().find_one_block(|b| b.id == "minecraft:chest"))
+                    .open_container(&bot.world().find_block(azalea_registry::Block::Chest))
                     .await
                     .unwrap();
                 bot.take_amount(&chest, 5, |i| i.id == "#minecraft:planks")
@@ -47,8 +47,7 @@ async fn handle(bot: Client, event: Event, state: State) -> anyhow::Result<()> {
 
                 let crafting_table = bot
                     .open_crafting_table(
-                        &bot.world
-                            .find_one_block(|b| b.id == "minecraft:crafting_table"),
+                        &bot.world.find_block(azalea_registry::Block::CraftingTable),
                     )
                     .await
                     .unwrap();
diff --git a/azalea/examples/mine_a_chunk.rs b/azalea/examples/todo/mine_a_chunk.rs
index 74ffacac..74ffacac 100644
--- a/azalea/examples/mine_a_chunk.rs
+++ b/azalea/examples/todo/mine_a_chunk.rs
diff --git a/azalea/examples/pvp.rs b/azalea/examples/todo/pvp.rs
index fb5a768d..fb5a768d 100755..100644
--- a/azalea/examples/pvp.rs
+++ b/azalea/examples/todo/pvp.rs