use std::{collections::VecDeque, path::Path};
use bevy::{
ecs::{
component::Component,
entity::Entity,
event::EventWriter,
query::With,
system::{Commands, Query, Res, ResMut, Resource},
},
math::IVec2,
reflect::Reflect,
utils::{EntityHashMap, HashMap},
};
use crate::{
math::{aabb::IAabb2d, extension::ChunkIndex},
render::chunk::{ChunkUnload, UnloadRenderChunk},
serializing::{map::TilemapLayer, save_object},
tilemap::{
buffers::TileBuilderBuffer,
map::{TilemapName, TilemapStorage},
tile::Tile,
},
};
#[cfg(feature = "algorithm")]
use crate::{
serializing::chunk::PATH_TILE_CHUNKS_FOLDER,
tilemap::{algorithm::path::PathTilemap, buffers::PathTileBuffer},
};
#[cfg(feature = "physics")]
use crate::{
serializing::chunk::PHYSICS_TILE_CHUNKS_FOLDER,
tilemap::{buffers::PackedPhysicsTileBuffer, physics::PhysicsTilemap},
};
use super::TILE_CHUNKS_FOLDER;
#[derive(Component)]
pub struct ScheduledSaveChunks;
#[derive(Resource, Default, Reflect)]
pub struct ChunkSaveConfig {
pub path: String,
pub chunks_per_frame: usize,
}
#[derive(Resource, Default)]
pub struct ChunkSaveCache(
pub(crate) EntityHashMap<Entity, HashMap<TilemapLayer, VecDeque<(IVec2, bool)>>>,
);
impl ChunkSaveCache {
#[inline]
pub fn schedule(
&mut self,
commands: &mut Commands,
tilemap: Entity,
layers: TilemapLayer,
chunk_index: IVec2,
remove_after_save: bool,
) {
for layer in layers.iter() {
self.0
.entry(tilemap)
.or_default()
.entry(layer)
.or_default()
.push_front((chunk_index, remove_after_save));
}
commands.entity(tilemap).insert(ScheduledSaveChunks);
}
#[inline]
pub fn schedule_many(
&mut self,
commands: &mut Commands,
tilemap: Entity,
layers: TilemapLayer,
chunk_indices: impl Iterator<Item = (IVec2, bool)> + Clone,
) {
for layer in layers.iter() {
let queue = self.0.entry(tilemap).or_default().entry(layer).or_default();
queue.reserve(chunk_indices.size_hint().0);
chunk_indices
.clone()
.for_each(|chunk_index| queue.push_front(chunk_index));
}
commands.entity(tilemap).insert(ScheduledSaveChunks);
}
#[inline]
pub fn pop_chunk(&mut self, tilemap: Entity, layer: TilemapLayer) -> Option<(IVec2, bool)> {
self.0.get_mut(&tilemap).and_then(|layers| {
layers
.get_mut(&layer)
.map(|chunks| chunks.pop_back())
.flatten()
})
}
}
pub fn render_chunk_remover(mut tilemaps_query: Query<(&mut TilemapStorage, &UnloadRenderChunk)>) {
tilemaps_query
.par_iter_mut()
.for_each(|(mut storage, unloaded)| {
unloaded.0.iter().for_each(|chunk_index| {
storage.storage.chunks.remove(chunk_index);
});
});
}
pub fn save_color_layer(
mut commands: Commands,
mut tilemaps_query: Query<
(Entity, &TilemapName, &mut TilemapStorage),
With<ScheduledSaveChunks>,
>,
tiles_query: Query<&Tile>,
mut chunk_unload: EventWriter<ChunkUnload>,
config: Res<ChunkSaveConfig>,
mut cache: ResMut<ChunkSaveCache>,
) {
tilemaps_query.for_each_mut(|(entity, name, mut storage)| {
let map_path = Path::new(&config.path).join(&name.0);
(0..config.chunks_per_frame).into_iter().for_each(|_| {
let Some((chunk_index, remove_after_save)) =
cache.pop_chunk(entity, TilemapLayer::COLOR)
else {
cache
.0
.get_mut(&entity)
.unwrap()
.remove(&TilemapLayer::COLOR);
return;
};
let Some(chunk) = storage.get_chunk(chunk_index) else {
return;
};
let tiles = chunk
.iter()
.enumerate()
.filter_map(|(index, t)| {
t.map(|t| {
(
IVec2 {
x: (index as u32 % storage.storage.chunk_size) as i32,
y: (index as u32 / storage.storage.chunk_size) as i32,
},
tiles_query
.get(t)
.ok()
.cloned()
.map(|tile| tile.into())
.unwrap(),
)
})
})
.collect();
save_object(
&map_path.join(TILE_CHUNKS_FOLDER),
format!("{}.ron", chunk_index.chunk_file_name()).as_str(),
&TileBuilderBuffer {
tiles,
aabb: IAabb2d {
min: IVec2::ZERO,
max: IVec2::splat(storage.storage.chunk_size as i32 - 1),
},
},
);
if remove_after_save {
storage.remove_chunk(&mut commands, chunk_index);
chunk_unload.send(ChunkUnload {
tilemap: entity,
index: chunk_index,
});
}
});
});
}
#[cfg(feature = "algorithm")]
pub fn save_path_layer(
mut tilemaps_query: Query<(Entity, &TilemapName, &mut PathTilemap), With<ScheduledSaveChunks>>,
config: Res<ChunkSaveConfig>,
mut cache: ResMut<ChunkSaveCache>,
) {
tilemaps_query.for_each_mut(|(entity, name, mut path_tilemap)| {
let map_path = Path::new(&config.path).join(&name.0);
(0..config.chunks_per_frame).into_iter().for_each(|_| {
let Some((chunk_index, remove_after_save)) =
cache.pop_chunk(entity, TilemapLayer::PATH)
else {
cache
.0
.get_mut(&entity)
.unwrap()
.remove(&TilemapLayer::PATH);
return;
};
let Some(chunk) = path_tilemap.storage.get_chunk(chunk_index) else {
return;
};
let tiles = chunk
.iter()
.enumerate()
.filter_map(|(index, tile)| {
tile.map(|t| {
(
IVec2 {
x: (index as u32 % path_tilemap.storage.chunk_size) as i32,
y: (index as u32 / path_tilemap.storage.chunk_size) as i32,
},
t,
)
})
})
.collect();
save_object(
&map_path.join(PATH_TILE_CHUNKS_FOLDER),
format!("{}.ron", chunk_index.chunk_file_name()).as_str(),
&PathTileBuffer {
tiles,
aabb: IAabb2d {
min: IVec2::ZERO,
max: IVec2::splat(path_tilemap.storage.chunk_size as i32 - 1),
},
},
);
if remove_after_save {
path_tilemap.storage.remove_chunk(chunk_index);
}
});
});
}
#[cfg(feature = "physics")]
pub fn save_physics_layer(
mut commands: Commands,
mut tilemaps_query: Query<
(Entity, &TilemapName, &mut PhysicsTilemap),
With<ScheduledSaveChunks>,
>,
config: Res<ChunkSaveConfig>,
mut cache: ResMut<ChunkSaveCache>,
) {
tilemaps_query.for_each_mut(|(entity, name, mut physics_tilemap)| {
let map_path = Path::new(&config.path).join(&name.0);
(0..config.chunks_per_frame).into_iter().for_each(|_| {
let Some((chunk_index, remove_after_save)) =
cache.pop_chunk(entity, TilemapLayer::PHYSICS)
else {
cache
.0
.get_mut(&entity)
.unwrap()
.remove(&TilemapLayer::PHYSICS);
return;
};
let Some(chunk) = physics_tilemap.data.get_chunk(chunk_index) else {
return;
};
let tiles = chunk
.iter()
.enumerate()
.filter_map(|(index, tile)| {
tile.clone().map(|t| {
(
IVec2 {
x: (index as u32 % physics_tilemap.storage.chunk_size) as i32,
y: (index as u32 / physics_tilemap.storage.chunk_size) as i32,
},
t,
)
})
})
.collect();
save_object(
&map_path.join(PHYSICS_TILE_CHUNKS_FOLDER),
format!("{}.ron", chunk_index.chunk_file_name()).as_str(),
&PackedPhysicsTileBuffer {
tiles,
aabb: IAabb2d {
min: IVec2::ZERO,
max: IVec2::splat(physics_tilemap.storage.chunk_size as i32 - 1),
},
},
);
if remove_after_save {
physics_tilemap.remove_chunk(&mut commands, chunk_index);
}
});
});
}