oxygengine_composite_renderer/system/
map.rs

1use crate::{
2    component::{CompositeMapChunk, CompositeRenderable, CompositeSurfaceCache},
3    composite_renderer::Renderable,
4    map_asset_protocol::{Map, MapAsset},
5};
6use core::{
7    assets::{asset::AssetId, database::AssetsDatabase},
8    ecs::{Comp, Universe, WorldRef},
9};
10use std::collections::HashMap;
11
12#[derive(Debug, Default)]
13pub struct CompositeMapSystemCache {
14    maps_cache: HashMap<String, Map>,
15    maps_table: HashMap<AssetId, String>,
16}
17
18pub type CompositeMapSystemResources<'a> = (
19    WorldRef,
20    &'a AssetsDatabase,
21    &'a mut CompositeMapSystemCache,
22    Comp<&'a mut CompositeMapChunk>,
23    Comp<&'a mut CompositeRenderable>,
24    Comp<&'a mut CompositeSurfaceCache>,
25);
26
27pub fn composite_map_system(universe: &mut Universe) {
28    let (world, assets, mut cache, ..) = universe.query_resources::<CompositeMapSystemResources>();
29
30    for id in assets.lately_loaded_protocol("map") {
31        let id = *id;
32        let asset = assets
33            .asset_by_id(id)
34            .expect("trying to use not loaded map asset");
35        let path = asset.path().to_owned();
36        let asset = asset
37            .get::<MapAsset>()
38            .expect("trying to use non-map asset");
39        let map = asset.map().clone();
40        cache.maps_cache.insert(path.clone(), map);
41        cache.maps_table.insert(id, path);
42    }
43    for id in assets.lately_unloaded_protocol("map") {
44        if let Some(path) = cache.maps_table.remove(id) {
45            cache.maps_cache.remove(&path);
46        }
47    }
48
49    for (_, (chunk, renderable, surface)) in world
50        .query::<(
51            &mut CompositeMapChunk,
52            &mut CompositeRenderable,
53            Option<&mut CompositeSurfaceCache>,
54        )>()
55        .iter()
56    {
57        if chunk.dirty {
58            if let Some(map) = cache.maps_cache.get(chunk.map_name()) {
59                let r = if let Some(commands) = map.build_render_commands_from_layer_by_name(
60                    chunk.layer_name(),
61                    chunk.offset(),
62                    chunk.size(),
63                    &assets,
64                ) {
65                    Renderable::Commands(commands)
66                } else {
67                    Renderable::None
68                };
69                renderable.0 = r;
70                if let Some(surface) = surface {
71                    surface.rebuild();
72                }
73                chunk.dirty = false;
74            }
75        }
76    }
77}
oxygengine_composite_renderer/system/map.rs

oxygengine_composite_renderer/system/
map.rs
