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|
use crate::download::Downloader;
use anyhow::{Context, Result};
use std::{
collections::{HashMap, HashSet},
sync::Arc,
};
use weareshared::{
Affine3A,
packets::{ReadWrite, Resource},
resources::{Attribute, Part, Prefab},
};
use wgpu::Buffer;
pub struct ScenePreparer {
index_buffers: HashMap<Resource, (Arc<Buffer>, u32)>,
index_buffers_needed: HashSet<Resource>,
vertex_buffers: HashMap<Resource, Arc<Buffer>>,
vertex_buffers_needed: HashSet<Resource>,
parts: HashMap<Resource, Arc<RPart>>,
parts_needed: HashSet<Resource>,
pub prefabs: HashMap<Resource, RPrefab>,
pub prefabs_needed: HashSet<Resource>,
}
pub struct RPrefab(pub Vec<(Affine3A, Arc<RPart>)>);
pub struct RPart {
pub index_count: u32,
pub index: Arc<Buffer>,
pub position: [Arc<Buffer>; 3],
pub normal: [Arc<Buffer>; 3],
pub texcoord: [Arc<Buffer>; 2],
}
impl ScenePreparer {
pub fn new() -> Self {
Self {
index_buffers: HashMap::new(),
vertex_buffers: HashMap::new(),
vertex_buffers_needed: HashSet::new(),
parts: HashMap::new(),
parts_needed: HashSet::new(),
prefabs: HashMap::new(),
prefabs_needed: HashSet::new(),
index_buffers_needed: HashSet::new(),
}
}
pub fn update(&mut self, dls: &mut Downloader) -> Result<()> {
let mut done = Vec::new();
for pres in &self.prefabs_needed {
if let Some(buf) = dls.try_get(*pres)? {
let prefab = Prefab::read(&mut buf.as_slice()).context("parsing prefab")?;
let mut rprefab = RPrefab(Vec::new());
for (aff, partres) in &prefab.0 {
if let Some(part) = self.parts.get(partres) {
rprefab.0.push((*aff, part.clone()));
} else {
self.parts_needed.insert(*partres);
}
}
if rprefab.0.len() == prefab.0.len() {
self.prefabs.insert(*pres, rprefab);
done.push(*pres);
}
}
}
for pres in &self.index_buffers_needed {
if let Some(buf) = dls.try_get(*pres)? {}
}
for pres in &self.parts_needed {
if let Some(buf) = dls.try_get(*pres)? {
let part = Part::read(&mut buf.as_slice()).context("parsing part")?;
if let (Some(indexres), Some(positionres), Some(normalres), Some(texcoordres)) = (
part.index,
part.va_position,
part.va_normal,
part.va_texcoord,
) {
let Some((index, index_count)) = self.index_buffers.get(&indexres).cloned()
else {
self.index_buffers_needed.insert(indexres);
continue;
};
let mut positions = Vec::new();
for vr in positionres {
match vr {
Attribute::Constant(_) => todo!(),
Attribute::Vertex(resource) => {
let Some(vertex) = self.vertex_buffers.get(&resource).cloned()
else {
self.vertex_buffers_needed.insert(indexres);
continue;
};
positions.push(vertex);
}
Attribute::Texture(_resource) => todo!(),
}
}
let mut normals = Vec::new();
for vr in normalres {
match vr {
Attribute::Constant(_) => todo!(),
Attribute::Vertex(resource) => {
let Some(vertex) = self.vertex_buffers.get(&resource).cloned()
else {
self.vertex_buffers_needed.insert(indexres);
continue;
};
normals.push(vertex);
}
Attribute::Texture(_resource) => todo!(),
}
}
let mut texcoords = Vec::new();
for vr in texcoordres {
match vr {
Attribute::Constant(_) => todo!(),
Attribute::Vertex(resource) => {
let Some(vertex) = self.vertex_buffers.get(&resource).cloned()
else {
self.vertex_buffers_needed.insert(indexres);
continue;
};
texcoords.push(vertex);
}
Attribute::Texture(_resource) => todo!(),
}
}
self.parts.insert(
*pres,
Arc::new(RPart {
index_count,
index,
texcoord: texcoords.try_into().unwrap(),
normal: normals.try_into().unwrap(),
position: positions.try_into().unwrap(),
}),
);
}
}
}
Ok(())
}
}
|
