include Lump version in LumpReader

src/bspfile.rs

@@ -34,12 +34,16 @@ impl<'a> BspFile<'a> {
     }
 
     pub fn lump_reader(&self, lump: LumpType) -> BspResult<LumpReader<Cursor<Cow<[u8]>>>> {
-        let data = self.get_lump(lump)?;
-        Ok(LumpReader::new(data, lump))
+        let entry = self.get_lump_entry(lump);
+        let data = self.get_lump(entry)?;
+        Ok(LumpReader::new(data, lump, entry.version))
     }
 
-    pub fn get_lump(&self, lump: LumpType) -> BspResult<Cow<[u8]>> {
-        let lump = &self.directories[lump];
+    pub fn get_lump_entry(&self, lump: LumpType) -> &LumpEntry {
+        &self.directories[lump]
+    }
+
+    pub fn get_lump(&self, lump: &LumpEntry) -> BspResult<Cow<[u8]>> {
         let raw_data = self
             .data
             .get(lump.offset as usize..lump.offset as usize + lump.length as usize)

src/data/mod.rs

@@ -85,6 +85,12 @@ pub struct Header {
     pub version: BspVersion,
 }
 
+#[derive(Clone, Copy, Debug, Default)]
+pub struct LumpArgs {
+    pub length: usize,
+    pub version: u32,
+}
+
 #[derive(Clone, Copy, Debug, Default, BinRead)]
 #[br(little)]
 pub struct LumpEntry {

src/lib.rs

@@ -71,7 +71,7 @@ impl Bsp {
             .read_vec(|r| r.read())?;
         let texture_string_data = String::from_utf8(
             bsp_file
-                .get_lump(LumpType::TextureDataStringData)?
+                .get_lump(bsp_file.get_lump_entry(LumpType::TextureDataStringData))?
                 .into_owned(),
         )
         .map_err(|e| BspError::String(StringError::NonUTF8(e.utf8_error())))?;

src/reader.rs

@@ -8,16 +8,18 @@ pub struct LumpReader<R> {
     inner: R,
     length: usize,
     lump: LumpType,
+    version: u32,
 }
 
 impl<'a> LumpReader<Cursor<Cow<'a, [u8]>>> {
-    pub fn new(data: Cow<'a, [u8]>, lump: LumpType) -> Self {
+    pub fn new(data: Cow<'a, [u8]>, lump: LumpType, version: u32) -> Self {
         let length = data.len();
         let reader = Cursor::new(data);
         LumpReader {
             inner: reader,
             length,
             lump,
+            version,
         }
     }
 
@@ -58,11 +60,7 @@ impl<R: BinReaderExt + Read> LumpReader<R> {
         Ok(entries)
     }
 
-    pub fn read<T: BinRead + Debug>(&mut self) -> BspResult<T>
-    where
-        T::Args<'static>: Default,
-        <T as BinRead>::Args<'static>: Clone,
-    {
+    pub fn read<'a, T: BinRead<Args<'a> = ()> + Debug>(&mut self) -> BspResult<T> {
         // let start = self.inner.stream_position().unwrap() as usize;
         let result = self.inner.read_le()?;
         // let end = self.inner.stream_position().unwrap() as usize;
@@ -76,6 +74,14 @@ impl<R: BinReaderExt + Read> LumpReader<R> {
         // );
         Ok(result)
     }
+    pub fn read_args<'a, T: BinRead<Args<'a> = LumpArgs> + Debug>(&mut self) -> BspResult<T> {
+        let args = LumpArgs {
+            length: self.length,
+            version: self.version,
+        };
+        let result = T::read_options(&mut self.inner, binrw::Endian::Little, args)?;
+        Ok(result)
+    }
 
     pub fn read_visdata(&mut self) -> BspResult<VisData> {
         if self.length < size_of::<u32>() * 2 {