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

2 files changed, 3 insertions, 12 deletions

diff --git a/azalea-world/src/entity/attributes.rs b/azalea-world/src/entity/attributes.rs
index f7e9682e..fca6b88f 100644
--- a/azalea-world/src/entity/attributes.rs
+++ b/azalea-world/src/entity/attributes.rs
@@ -1,4 +1,4 @@
-//! https://minecraft.fandom.com/wiki/Attribute
+//! <https://minecraft.fandom.com/wiki/Attribute>
 
 use std::{
     collections::HashMap,
diff --git a/azalea-world/src/entity/mod.rs b/azalea-world/src/entity/mod.rs
index 4611f215..dbf7e665 100644
--- a/azalea-world/src/entity/mod.rs
+++ b/azalea-world/src/entity/mod.rs
@@ -270,20 +270,11 @@ impl EntityData {
         &self.pos
     }
 
-    /// Convert this &mut self into a (mutable) pointer.
-    ///
-    /// # Safety
-    /// The entity MUST exist while this pointer exists.
-    pub unsafe fn as_ptr(&mut self) -> NonNull<EntityData> {
-        NonNull::new_unchecked(self as *mut EntityData)
-    }
-
     /// Convert this &self into a (mutable) pointer.
     ///
     /// # Safety
-    /// The entity MUST exist while this pointer exists. You also must not
-    /// modify the data inside the pointer.
-    pub unsafe fn as_const_ptr(&self) -> NonNull<EntityData> {
+    /// The entity MUST exist for at least as long as this pointer exists.
+    pub unsafe fn as_ptr(&self) -> NonNull<EntityData> {
         // this is cursed
         NonNull::new_unchecked(self as *const EntityData as *mut EntityData)
     }