Fluid physics (#199)

* start implementing fluid physics

* Initial implementation of fluid pushing

* different travel function in water

* bubble columns

* jumping in water

* cleanup

* change ultrawarm to be required

* fix for clippy

5 files changed, 16 insertions, 10 deletions

diff --git a/azalea-world/src/chunk_storage.rs b/azalea-world/src/chunk_storage.rs
index 94ffb362..8362385a 100755
--- a/azalea-world/src/chunk_storage.rs
+++ b/azalea-world/src/chunk_storage.rs
@@ -7,7 +7,8 @@ use std::{
     sync::{Arc, Weak},
 };
 
-use azalea_block::{BlockState, BlockStateIntegerRepr, FluidState};
+use azalea_block::block_state::{BlockState, BlockStateIntegerRepr};
+use azalea_block::fluid_state::FluidState;
 use azalea_buf::{AzaleaRead, AzaleaWrite, BufReadError};
 use azalea_core::position::{BlockPos, ChunkBlockPos, ChunkPos, ChunkSectionBlockPos};
 use nohash_hasher::IntMap;
diff --git a/azalea-world/src/container.rs b/azalea-world/src/container.rs
index 0b3a13fd..7e5927e3 100644
--- a/azalea-world/src/container.rs
+++ b/azalea-world/src/container.rs
@@ -56,14 +56,14 @@ impl InstanceContainer {
             let existing = existing_lock.read();
             if existing.chunks.height != height {
                 error!(
-                    "Shared dimension height mismatch: {} != {}",
-                    existing.chunks.height, height,
+                    "Shared dimension height mismatch: {} != {height}",
+                    existing.chunks.height
                 );
             }
             if existing.chunks.min_y != min_y {
                 error!(
-                    "Shared world min_y mismatch: {} != {}",
-                    existing.chunks.min_y, min_y,
+                    "Shared world min_y mismatch: {} != {min_y}",
+                    existing.chunks.min_y
                 );
             }
             existing_lock.clone()
diff --git a/azalea-world/src/find_blocks.rs b/azalea-world/src/find_blocks.rs
index ff69dd2f..6228687f 100644
--- a/azalea-world/src/find_blocks.rs
+++ b/azalea-world/src/find_blocks.rs
@@ -1,4 +1,4 @@
-use azalea_block::{BlockState, BlockStates};
+use azalea_block::{block_state::BlockState, BlockStates};
 use azalea_core::position::{BlockPos, ChunkPos};
 
 use crate::{iterators::ChunkIterator, palette::Palette, ChunkStorage, Instance};
diff --git a/azalea-world/src/palette.rs b/azalea-world/src/palette.rs
index 269e443b..31a03f3d 100755
--- a/azalea-world/src/palette.rs
+++ b/azalea-world/src/palette.rs
@@ -1,6 +1,6 @@
 use std::io::{Cursor, Write};
 
-use azalea_block::BlockStateIntegerRepr;
+use azalea_block::block_state::BlockStateIntegerRepr;
 use azalea_buf::{AzaleaRead, AzaleaReadVar, AzaleaWrite, AzaleaWriteVar, BufReadError};
 use azalea_core::math;
 use tracing::warn;
diff --git a/azalea-world/src/world.rs b/azalea-world/src/world.rs
index 0a09d387..298bd598 100644
--- a/azalea-world/src/world.rs
+++ b/azalea-world/src/world.rs
@@ -5,7 +5,8 @@ use std::{
     fmt::Debug,
 };
 
-use azalea_block::{BlockState, FluidState};
+use azalea_block::fluid_state::FluidState;
+use azalea_block::BlockState;
 use azalea_core::position::{BlockPos, ChunkPos};
 use azalea_core::registry_holder::RegistryHolder;
 use bevy_ecs::{component::Component, entity::Entity};
@@ -88,8 +89,12 @@ pub struct Instance {
     /// An index of all the entities we know are in the chunks of the world
     pub entities_by_chunk: HashMap<ChunkPos, HashSet<Entity>>,
 
-    /// An index of Minecraft entity IDs to Azalea ECS entities. You should
-    /// avoid using this and instead use `azalea_entity::EntityIdIndex`
+    /// An index of Minecraft entity IDs to Azalea ECS entities.
+    ///
+    /// You should avoid using this (particularly if you're using swarms) and
+    /// instead use `azalea_entity::EntityIdIndex`, since some servers may
+    /// give different entity IDs for the same entities to different
+    /// players.
     pub entity_by_id: IntMap<MinecraftEntityId, Entity>,
 
     pub registries: RegistryHolder,