extract loader into crate

examples/common/error.rs

@@ -1,6 +1,6 @@
-use crate::loader::LoadError;
 use miette::Diagnostic;
 use std::string::FromUtf8Error;
+use tf_asset_loader::LoaderError;
 use thiserror::Error;
 use vmt_parser::VdfError;
 
@@ -14,7 +14,7 @@ pub enum Error {
     #[error(transparent)]
     IO(#[from] std::io::Error),
     #[error(transparent)]
-    Loader(#[from] LoadError),
+    Loader(#[from] LoaderError),
     #[error(transparent)]
     Vtf(#[from] vtf::Error),
     #[error(transparent)]

examples/common/loader.rs

@@ -1,118 +0,0 @@
-use std::fmt::{Debug, Formatter};
-use std::fs;
-use std::path::PathBuf;
-use steamlocate::SteamDir;
-use thiserror::Error;
-use tracing::{debug, error, info};
-use vpk::VPK;
-
-#[derive(Debug, Error)]
-pub enum LoadError {
-    #[error("{0}")]
-    Other(&'static str),
-    #[error(transparent)]
-    IO(#[from] std::io::Error),
-}
-
-impl From<&'static str> for LoadError {
-    fn from(e: &'static str) -> Self {
-        LoadError::Other(e)
-    }
-}
-
-pub struct Loader {
-    tf_dir: PathBuf,
-    download: PathBuf,
-    vpks: Vec<VPK>,
-}
-
-impl Debug for Loader {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        f.debug_struct("Loader")
-            .field("tf_dir", &self.tf_dir)
-            .finish_non_exhaustive()
-    }
-}
-
-impl Loader {
-    pub fn new() -> Result<Self, LoadError> {
-        let tf_dir = SteamDir::locate()
-            .ok_or("Can't find steam directory")?
-            .app(&440)
-            .ok_or("Can't find tf2 directory")?
-            .path
-            .join("tf");
-        let download = tf_dir.join("download");
-        let vpks = tf_dir
-            .read_dir()?
-            .filter_map(|item| item.ok())
-            .filter_map(|item| Some(item.path().to_str()?.to_string()))
-            .filter(|path| path.ends_with("dir.vpk"))
-            .map(|path| vpk::from_path(&path))
-            .filter_map(|res| res.ok())
-            .collect();
-
-        Ok(Loader {
-            tf_dir,
-            download,
-            vpks,
-        })
-    }
-
-    #[tracing::instrument]
-    pub fn exists(&self, name: &str) -> bool {
-        debug!("loading {}", name);
-        if name.ends_with("bsp") {
-            let path = self.tf_dir.join(name);
-            if path.exists() {
-                return true;
-            }
-            let path = self.download.join(name);
-            if path.exists() {
-                return true;
-            }
-        }
-        for vpk in self.vpks.iter() {
-            if vpk.tree.contains_key(name) {
-                return true;
-            }
-        }
-        false
-    }
-
-    #[tracing::instrument]
-    pub fn load(&self, name: &str) -> Result<Vec<u8>, LoadError> {
-        debug!("loading {}", name);
-        if name.ends_with("bsp") {
-            let path = self.tf_dir.join(name);
-            if path.exists() {
-                debug!("found in tf2 dir");
-                return Ok(fs::read(path)?);
-            }
-            let path = self.download.join(name);
-            if path.exists() {
-                debug!("found in download dir");
-                return Ok(fs::read(path)?);
-            }
-        }
-        for vpk in self.vpks.iter() {
-            if let Some(entry) = vpk.tree.get(name) {
-                let data = entry.get()?.into_owned();
-                debug!("got {} bytes from vpk", data.len());
-                return Ok(data);
-            }
-        }
-        info!("Failed to find {} in vpk", name);
-        Err(LoadError::Other("Can't find file in vpks"))
-    }
-
-    pub fn find_in_paths(&self, name: &str, paths: &[String]) -> Option<String> {
-        for path in paths {
-            let full_path = format!("{}{}", path, name);
-            if self.exists(&full_path) {
-                return Some(full_path);
-            }
-        }
-        None
-    }
-}

examples/common/materials.rs

@@ -1,6 +1,6 @@
-use crate::loader::{LoadError, Loader};
 use crate::Error;
 use image::DynamicImage;
+use tf_asset_loader::Loader;
 use tracing::{error, instrument};
 use vmt_parser::from_str;
 use vtf::vtf::VTF;
@@ -54,8 +54,8 @@ pub fn load_material(
     let path = format!("{}.vmt", name.to_ascii_lowercase().trim_end_matches(".vmt"));
     let path = loader
         .find_in_paths(&path, &dirs)
-        .ok_or(LoadError::Other("Can't find file in vpks"))?;
-    let raw = loader.load(&path)?;
+        .ok_or(Error::Other(format!("Can't find file {}", path)))?;
+    let raw = loader.load(&path)?.expect("didn't find foudn path?");
     let vdf = String::from_utf8(raw)?;
 
     let material = from_str(&vdf).map_err(|e| {
@@ -64,7 +64,9 @@ pub fn load_material(
         Error::Other(format!("Failed to load material {}", path))
     })?;
     let material = material.resolve(|path| {
-        let data = loader.load(path)?;
+        let data = loader
+            .load(path)?
+            .ok_or(Error::Other(format!("Can't find file {}", path)))?;
         let vdf = String::from_utf8(data)?;
         Ok::<_, Error>(vdf)
     })?;
@@ -102,7 +104,9 @@ fn load_texture(name: &str, loader: &Loader) -> Result<DynamicImage, Error> {
         "materials/{}.vtf",
         name.trim_end_matches(".vtf").trim_start_matches('/')
     );
-    let mut raw = loader.load(&path)?;
+    let mut raw = loader
+        .load(&path)?
+        .ok_or(Error::Other(format!("Can't find file {}", path)))?;
     let vtf = VTF::read(&mut raw)?;
     let image = vtf.highres_image.decode(0)?;
     Ok(image)

examples/gltf/main.rs

@@ -1,8 +1,6 @@
 mod convert;
 #[path = "../common/error.rs"]
 mod error;
-#[path = "../common/loader.rs"]
-mod loader;
 #[path = "../common/materials.rs"]
 mod material;
 
@@ -11,7 +9,6 @@ use gltf_json as json;
 use std::fs;
 
 use crate::convert::{push_material, push_model};
-use crate::loader::Loader;
 use crate::material::load_material_fallback;
 use clap::Parser;
 pub use error::Error;
@@ -20,6 +17,7 @@ use main_error::MainResult;
 use std::borrow::Cow;
 use std::collections::BTreeSet;
 use std::path::PathBuf;
+use tf_asset_loader::Loader;
 use vmdl::Model;
 
 fn align_to_multiple_of_four(n: &mut u32) {

examples/view/main.rs

@@ -1,16 +1,14 @@
 #[path = "../common/error.rs"]
 mod error;
-#[path = "../common/loader.rs"]
-mod loader;
 #[path = "../common/materials.rs"]
 mod material;
 
 use crate::error::Error;
-use crate::loader::Loader;
 use crate::material::{load_material_fallback, MaterialData};
 use image::GenericImageView;
 use std::env::args_os;
 use std::path::PathBuf;
+use tf_asset_loader::Loader;
 use thiserror::Error;
 use three_d::*;
 use vmdl::{Model, Vector};
@@ -59,6 +57,7 @@ fn main() -> Result<(), Error> {
     let mut gui = three_d::GUI::new(&context);
 
     let loader = Loader::new().expect("loader");
+    dbg!(&loader);
     let skin_count = source_model.skin_tables().count();
 
     let cpu_models = (0..skin_count).map(|skin| model_to_model(&source_model, &loader, skin));