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

4 files changed, 23 insertions, 14 deletions

diff --git a/azalea/examples/mine_a_chunk.rs b/azalea/examples/mine_a_chunk.rs
index 2e30b2c5..f9b208a2 100755..100644
--- a/azalea/examples/mine_a_chunk.rs
+++ b/azalea/examples/mine_a_chunk.rs
@@ -1,13 +1,16 @@
-use azalea::{Account, Accounts, Client, Event, Swarm};
+use azalea::{prelude::*, SwarmEvent};
+use azalea::{Account, Client, Event, Swarm};
 use parking_lot::Mutex;
 use std::sync::Arc;
 
 #[tokio::main]
 async fn main() {
-    let accounts = Accounts::new();
+    let mut accounts = Vec::new();
+    let mut states = Vec::new();
 
     for i in 0..10 {
-        accounts.add(Account::offline(&format!("bot{}", i)));
+        accounts.push(Account::offline(&format!("bot{}", i)));
+        states.push(Arc::new(Mutex::new(State::default())));
     }
 
     azalea::start_swarm(azalea::SwarmOptions {
@@ -15,13 +18,15 @@ async fn main() {
         address: "localhost",
 
         swarm_state: State::default(),
-        state: State::default(),
+        states,
 
-        swarm_plugins: plugins![azalea_pathfinder::Plugin::default()],
+        swarm_plugins: plugins![],
         plugins: plugins![],
 
-        handle: Box::new(handle),
-        swarm_handle: Box::new(swarm_handle),
+        handle,
+        swarm_handle,
+
+        join_delay: None,
     })
     .await
     .unwrap();
@@ -37,9 +42,13 @@ async fn handle(bot: Client, event: Event, state: State) -> anyhow::Result<()> {
     Ok(())
 }
 
-async fn swarm_handle(swarm: Swarm, event: Event, state: SwarmState) -> anyhow::Result<()> {
-    match event {
-        Event::Login => {
+async fn swarm_handle(
+    swarm: Swarm<State>,
+    event: SwarmEvent,
+    state: SwarmState,
+) -> anyhow::Result<()> {
+    match &event {
+        SwarmEvent::Login => {
             swarm.goto(azalea::BlockPos::new(0, 70, 0)).await;
             // or bots.goto_goal(pathfinder::Goals::Goto(azalea::BlockPos(0, 70, 0))).await;
 
diff --git a/azalea/examples/potatobot/autoeat.rs b/azalea/examples/potatobot/autoeat.rs
index 0f0ccc6d..89934fa2 100755
--- a/azalea/examples/potatobot/autoeat.rs
+++ b/azalea/examples/potatobot/autoeat.rs
@@ -14,7 +14,7 @@ pub struct Plugin {
 pub struct State {}
 
 #[async_trait]
-impl azalea::Plugin for Plugin {
+impl azalea::PluginState for Plugin {
     async fn handle(self: Box<Self>, event: Event, bot: Client) {
         match event {
             Event::UpdateHunger => {
diff --git a/azalea/examples/potatobot/main.rs b/azalea/examples/potatobot/main.rs
index e585c41d..8d40c48e 100755
--- a/azalea/examples/potatobot/main.rs
+++ b/azalea/examples/potatobot/main.rs
@@ -15,7 +15,7 @@ async fn main() {
         account,
         address: "localhost",
         state: State::default(),
-        plugins: plugins![autoeat::Plugin::default(), pathfinder::Plugin::default(),],
+        plugins: plugins![autoeat::Plugin, pathfinder::Plugin],
         handle,
     })
     .await
diff --git a/azalea/examples/pvp.rs b/azalea/examples/pvp.rs
index 87d83c6d..157ad9e2 100755
--- a/azalea/examples/pvp.rs
+++ b/azalea/examples/pvp.rs
@@ -15,7 +15,7 @@ async fn main() {
         swarm_state: State::default(),
         state: State::default(),
 
-        swarm_plugins: plugins![pathfinder::Plugin::default()],
+        swarm_plugins: plugins![pathfinder::Plugin],
         plugins: plugins![],
 
         handle: Box::new(handle),
@@ -32,7 +32,7 @@ struct State {}
 struct SwarmState {}
 
 async fn handle(bot: Client, event: Event, state: State) {}
-async fn swarm_handle(swarm: Swarm, event: Event, state: State) {
+async fn swarm_handle<S>(swarm: Swarm<S>, event: Event, state: State) {
     match event {
         Event::Tick => {
             // choose an arbitrary player within render distance to target