Swarm (#36)

* make azalea-pathfinder dir

* start writing d* lite impl

* more work on d* lite

* work more on implementing d* lite

* full d* lite impl

* updated edges

* add next() function

* add NoPathError

* why does dstar lite not work

* fix d* lite implementation

* make the test actually check the coords

* replace while loop with if statement

* fix clippy complaints

* make W only have to be PartialOrd

* fix PartialOrd issues

* implement mtd* lite

* add a test to mtd* lite

* remove normal d* lite

* make heuristic only take in one arg

* add `success` function

* Update README.md

* evil black magic to make .entity not need dimension

* start adding moves

* slightly improve the vec3/position situation

new macro that implements all the useful functions

* moves stuff

* make it compile

* update deps in az-pathfinder

* make it compile again

* more pathfinding stuff

* add Bot::look_at

* replace EntityMut and EntityRef with just Entity

* block pos pathfinding stuff

* rename movedirection to walkdirection

* execute path every tick

* advance path

* change az-pf version

* make azalea_client keep plugin state

* fix Plugins::get

* why does it think there is air

* start debugging incorrect air

* update some From methods to use rem_euclid

* start adding swarm

* fix deadlock

i still don't understand why it was happening but the solution was to keep the Client::player lock for shorter so it didn't overlap with the Client::dimension lock

* make lookat actually work probably

* fix going too fast

* Update main.rs

* make a thing immutable

* direction_looking_at

* fix rotations

* import swarm in an example

* fix stuff from merge

* remove azalea_pathfinder import

* delete azalea-pathfinder crate

already in azalea::pathfinder module

* swarms

* start working on shared dimensions

* Shared worlds work

* start adding Swarm::add_account

* add_account works

* change "client" to "bot" in some places

* Fix issues from merge

* Update world.rs

* add SwarmEvent::Disconnect(Account)

* almost add SwarmEvent::Chat and new plugin system

it panics rn

* make plugins have to provide the State associated type

* improve comments

* make fn build slightly cleaner

* fix SwarmEvent::Chat

* change a println in bot/main.rs

* Client::shutdown -> disconnect

* polish

fix clippy warnings + improve some docs a bit

* fix shared worlds*

*there's a bug that entities and bots will have their positions exaggerated because the relative movement packet is applied for every entity once per bot

* i am being trolled by rust

for some reason some stuff is really slow for literally no reason and it makes no sense i am going insane

* make world an RwLock again

* remove debug messages

* fix skipping event ticks

unfortunately now sending events is `.send().await?` instead of just `.send()`

* fix deadlock + warnings

* turns out my floor_mod impl was wrong

and i32::rem_euclid has the correct behavior LOL

* still errors with lots of bots

* make swarm iter & fix new chunks not loading

* improve docs

* start fixing tests

* fix all the tests

except the examples i don't know how to exclude them from the tests

* improve docs some more

1 files changed, 19 insertions, 15 deletions

diff --git a/azalea/src/pathfinder/mod.rs b/azalea/src/pathfinder/mod.rs
index f119c645..8a9d7540 100644
--- a/azalea/src/pathfinder/mod.rs
+++ b/azalea/src/pathfinder/mod.rs
@@ -13,9 +13,14 @@ use parking_lot::Mutex;
 use std::collections::VecDeque;
 use std::sync::Arc;
 
-#[derive(Default, Clone)]
-pub struct Plugin {
-    pub state: State,
+#[derive(Clone, Default)]
+pub struct Plugin;
+impl crate::Plugin for Plugin {
+    type State = State;
+
+    fn build(&self) -> State {
+        State::default()
+    }
 }
 
 #[derive(Default, Clone)]
@@ -25,10 +30,10 @@ pub struct State {
 }
 
 #[async_trait]
-impl crate::Plugin for Plugin {
+impl crate::PluginState for State {
     async fn handle(self: Box<Self>, event: Event, mut bot: Client) {
         if let Event::Tick = event {
-            let mut path = self.state.path.lock();
+            let mut path = self.path.lock();
 
             if !path.is_empty() {
                 tick_execute_path(&mut bot, &mut path);
@@ -102,9 +107,8 @@ impl Trait for azalea_client::Client {
 
         let state = self
             .plugins
-            .get::<Plugin>()
+            .get::<State>()
             .expect("Pathfinder plugin not installed!")
-            .state
             .clone();
         // convert the Option<Vec<Node>> to a VecDeque<Node>
         *state.path.lock() = p.expect("no path").into_iter().collect();
@@ -127,7 +131,7 @@ fn tick_execute_path(bot: &mut Client, path: &mut VecDeque<Node>) {
     }
 
     if target.is_reached(&bot.entity()) {
-        println!("ok target {target:?} reached");
+        // println!("ok target {target:?} reached");
         path.pop_front();
         if path.is_empty() {
             bot.walk(WalkDirection::None);
@@ -165,13 +169,13 @@ impl Node {
     /// Returns whether the entity is at the node and should start going to the
     /// next node.
     pub fn is_reached(&self, entity: &EntityData) -> bool {
-        println!(
-            "entity.delta.y: {} {:?}=={:?}, self.vertical_vel={:?}",
-            entity.delta.y,
-            BlockPos::from(entity.pos()),
-            self.pos,
-            self.vertical_vel
-        );
+        // println!(
+        //     "entity.delta.y: {} {:?}=={:?}, self.vertical_vel={:?}",
+        //     entity.delta.y,
+        //     BlockPos::from(entity.pos()),
+        //     self.pos,
+        //     self.vertical_vel
+        // );
         BlockPos::from(entity.pos()) == self.pos
             && match self.vertical_vel {
                 VerticalVel::NoneMidair => entity.delta.y > -0.1 && entity.delta.y < 0.1,