Physics (#11)

* Put physics module in azalea-entity

* port aabb

* add more stuff to PositionXYZ

* azalea-physics

* important collision things

* more physics stuff

* backup because i'm about to delete shapes

* more shape stuff

* CubeVoxelShape

* no compile errors???

insane

* impl VoxelShape for ArrayVoxelShape

* Shapes stuff

* collide_x but it doesn't work yet

* binary_search

* it compiles

* Entity has bounding box

* Update discrete_voxel_shape.rs

* Entity::make_bounding_box

* ok i'm about to merge az-entity and az-world

might be a terrible idea which is why i'm committing first

* ok so i moved entity to world

* on_pos and move_entity compiles

* add send_position

* move collision stuff to collision module in az-physics

* dimension is no longer an Option

* start trying to do collision for the client

* collision works :tada:

* start adding palette resizing

* get_and_set (pain)

* it compiles but probably won't work

* add a test

* remove printlns

* add more tests for palette stuff

* ClientboundMoveVec3Packet -> ClientboundMoveEntityPosPacket

i think i changed this on accident once

* palette resizing works

todo: remove the printlns

* Remove printlns in palette.rs

* fix issues from merge

* fixes + work a bit more on physics

* Better entities (#19)

* well it compiles

* add tests to entity storage

* add suggestions in azalea-brigadier

* this probably causes ub

* fix brigadiersuggestions

* get rid of entityid

* test From<EntityMut> for EntityRef

* don't mention other libraries since there's too many

* fix warnings

* do todos in brigadier suggestions

* work on physics

* more physics stuff

* remove trait feature on az-block

i think rust gets confused and compiles the macro without the feature

* bump ahash

* aes tests in az-crypto

* optimize aes's deps

* fix crashes

* fix section_index for negative numbers and test

* fix BlockPos protocol implementation

* remove some debug prints

* prepare to add ai_step

* make ai step work

* clippy

1 files changed, 41 insertions, 2 deletions

diff --git a/azalea-core/src/lib.rs b/azalea-core/src/lib.rs
index a1fa1fca..5aca7d52 100755
--- a/azalea-core/src/lib.rs
+++ b/azalea-core/src/lib.rs
@@ -12,16 +12,55 @@ mod game_type;
 pub use game_type::*;
 
 mod slot;
-pub use slot::{Slot, SlotData};
+pub use slot::*;
 
 mod position;
 pub use position::*;
 
 mod direction;
-pub use direction::Direction;
+pub use direction::*;
 
 mod delta;
 pub use delta::*;
 
 mod particle;
 pub use particle::*;
+
+mod cursor3d;
+pub use cursor3d::*;
+
+mod bitset;
+pub use bitset::*;
+
+mod aabb;
+pub use aabb::*;
+
+mod block_hit_result;
+pub use block_hit_result::*;
+
+// java moment
+// TODO: add tests and optimize/simplify this
+pub fn floor_mod(x: i32, y: u32) -> u32 {
+    if x < 0 {
+        y - ((-x) as u32 % y)
+    } else {
+        x as u32 % y
+    }
+}
+
+// TODO: make this generic
+pub fn binary_search(mut min: u32, max: u32, predicate: &dyn Fn(u32) -> bool) -> u32 {
+    let mut diff = max - min;
+    while diff > 0 {
+        let diff_mid = diff / 2;
+        let mid = min + diff_mid;
+        if predicate(mid) {
+            diff = diff_mid;
+        } else {
+            min = mid + 1;
+            diff -= diff_mid + 1;
+        }
+    }
+
+    min
+}