added most of the q3 bsp format

src/lib.rs

@@ -1,49 +1,14 @@
-
 extern crate byteorder;
 
 use byteorder::{LittleEndian, ReadBytesExt};
-use std::fs::{File};
 use std::io::*;
-use std::path::{Path};
 
 #[derive(Debug)]
 pub struct Header {
     pub i: char,
     pub b: char,
     pub s: char,
-    pub p : char
-}
-
-#[derive(Debug)]
-pub struct DirEntry {
-    pub offset: i32,
-    pub length : i32
-}
-
-#[derive(Debug)]
-pub struct Entity {
-    pub entities: String
-}
-
-#[derive(Debug)]
-pub struct Texture {
-    pub name : String,
-    pub flags : i32,
-    pub contents : i32
-}
-#[derive(Debug)]
-pub struct Plane {
-    pub normal: [f32; 3],
-    pub dist : f32
-}
-
-#[derive(Debug)]
-pub struct BSP { 
-    pub header : Header,
-    pub dir_entries : Vec<DirEntry>,
-    pub entities : Entity,
-    pub textures : Vec<Texture>,
-    pub planes : Vec<Plane>,
+    pub p: char,
 }
 
 fn read_header(cursor: &mut Cursor<Vec<u8>>) -> Result<Header> {
@@ -51,23 +16,42 @@ fn read_header(cursor : &mut Cursor<Vec<u8>>) -> Result<Header> {
     let b = cursor.read_u8()? as char;
     let s = cursor.read_u8()? as char;
     let p = cursor.read_u8()? as char;
-    Ok(Header {i : i, b : b, s : s, p : p})
+    Ok(Header {
+        i: i,
+        b: b,
+        s: s,
+        p: p,
+    })
 }
 
 fn read_version(cursor: &mut Cursor<Vec<u8>>) -> Result<i32> {
     cursor.read_i32::<LittleEndian>()
 }
 
+#[derive(Debug)]
+pub struct DirEntry {
+    pub offset: i32,
+    pub length: i32,
+}
+
 fn read_directories(cursor: &mut Cursor<Vec<u8>>) -> Result<Vec<DirEntry>> {
     let mut dir_entries = Vec::new();
     for _ in 0..16 {
         let offset = cursor.read_i32::<LittleEndian>()?;
         let length = cursor.read_i32::<LittleEndian>()?;
-        dir_entries.push( DirEntry { offset : offset, length : length });
+        dir_entries.push(DirEntry {
+            offset: offset,
+            length: length,
+        });
     }
     Ok(dir_entries)
 }
 
+#[derive(Debug)]
+pub struct Entity {
+    pub entities: String,
+}
+
 fn read_entities(cursor: &mut Cursor<Vec<u8>>, dir_entry: &DirEntry) -> Result<Entity> {
     let mut entities = Vec::with_capacity(dir_entry.length as usize);
     cursor.set_position(dir_entry.offset as u64);
@@ -75,13 +59,13 @@ fn read_entities(cursor : &mut Cursor<Vec<u8>>, dir_entry : &DirEntry) -> Result
         let data = cursor.read_u8()?;
         entities.push(data);
     }
-    
     let entities = String::from_utf8(entities).unwrap();
-
     Ok(Entity { entities: entities })
 }
 
-fn read_entry<F, T>(cursor : &mut Cursor<Vec<u8>>, dir_entry : &DirEntry, mut f : F ) -> Result<Vec<T>> where F : FnMut(&mut Cursor<Vec<u8>>) -> Result<T> {
+fn read_entry<F, T>(cursor: &mut Cursor<Vec<u8>>, dir_entry: &DirEntry, mut f: F) -> Result<Vec<T>>
+    where F: FnMut(&mut Cursor<Vec<u8>>) -> Result<T>
+{
     let mut entries = Vec::new();
     cursor.set_position(dir_entry.offset as u64);
     let end_pos = (dir_entry.offset + dir_entry.length) as u64;
@@ -92,6 +76,13 @@ fn read_entry<F, T>(cursor : &mut Cursor<Vec<u8>>, dir_entry : &DirEntry, mut f
     Ok(entries)
 }
 
+#[derive(Debug)]
+pub struct Texture {
+    pub name: String,
+    pub flags: i32,
+    pub contents: i32,
+}
+
 fn read_texture(cursor: &mut Cursor<Vec<u8>>) -> Result<Texture> {
     let mut texture = Vec::new();
     for _ in 0..64 {
@@ -103,7 +94,17 @@ fn read_texture(cursor : &mut Cursor<Vec<u8>>) -> Result<Texture> {
     let texture_name = String::from_utf8(texture).unwrap();
     let flags = cursor.read_i32::<LittleEndian>()?;
     let contents = cursor.read_i32::<LittleEndian>()?;
-    Ok (Texture { name : texture_name, flags : flags, contents : contents })
+    Ok(Texture {
+        name: texture_name,
+        flags: flags,
+        contents: contents,
+    })
+}
+
+#[derive(Debug)]
+pub struct Plane {
+    pub normal: [f32; 3],
+    pub dist: f32,
 }
 
 fn read_plane(cursor: &mut Cursor<Vec<u8>>) -> Result<Plane> {
@@ -111,26 +112,258 @@ fn read_plane(cursor : &mut Cursor<Vec<u8>>) -> Result<Plane> {
     let y = cursor.read_f32::<LittleEndian>()?;
     let z = cursor.read_f32::<LittleEndian>()?;
     let dist = cursor.read_f32::<LittleEndian>()?;
-    let plane = Plane { normal : [x,y,z], dist : dist };
+    let plane = Plane {
+        normal: [x, y, z],
+        dist: dist,
+    };
     Ok(plane)
 }
 
-pub fn read_bsp(filename : &str) -> Result<BSP> {
-    let path = Path::new(filename);
-    let mut file = File::open(path).unwrap();
-    let mut bytes = Vec::new();
-    file.read_to_end(&mut bytes).unwrap();
+#[derive(Debug)]
+pub struct Node {
+    pub plane: i32,
+    pub children: [i32; 2],
+    pub mins: [i32; 3],
+    pub maxs: [i32; 3],
+}
+
+fn read_node(cursor: &mut Cursor<Vec<u8>>) -> Result<Node> {
+    let plane = cursor.read_i32::<LittleEndian>()?;
+    let children = [cursor.read_i32::<LittleEndian>()?, cursor.read_i32::<LittleEndian>()?];
+    let mins = [cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?];
+    let maxs = [cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?];
+    let node = Node {
+        plane: plane,
+        children: children,
+        mins: mins,
+        maxs: maxs,
+    };
+    Ok(node)
+}
+
+#[derive(Debug)]
+pub struct Leaf {
+    pub cluster: i32,
+    pub area: i32,
+    pub mins: [i32; 3],
+    pub maxs: [i32; 3],
+    pub leaf_face: i32,
+    pub num_leaf_faces: i32,
+    pub leaf_brush: i32,
+    pub num_leaf_brushes: i32,
+}
+
+fn read_leaf(cursor: &mut Cursor<Vec<u8>>) -> Result<Leaf> {
+    let cluster = cursor.read_i32::<LittleEndian>()?;
+    let area = cursor.read_i32::<LittleEndian>()?;
+    let mins = [cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?];
+    let maxs = [cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?,
+                cursor.read_i32::<LittleEndian>()?];
+    let leaf_face = cursor.read_i32::<LittleEndian>()?;
+    let num_leaf_faces = cursor.read_i32::<LittleEndian>()?;
+    let leaf_brush = cursor.read_i32::<LittleEndian>()?;
+    let num_leaf_brushes = cursor.read_i32::<LittleEndian>()?;
+    let leaf = Leaf {
+        cluster: cluster,
+        area: area,
+        mins: mins,
+        maxs: maxs,
+        leaf_face: leaf_face,
+        num_leaf_faces: num_leaf_faces,
+        leaf_brush: leaf_brush,
+        num_leaf_brushes: num_leaf_brushes,
+    };
+    Ok(leaf)
+}
+
+#[derive(Debug)]
+pub struct LeafFace {
+    pub face: i32,
+}
+
+fn read_leaf_face(cursor: &mut Cursor<Vec<u8>>) -> Result<LeafFace> {
+    let face = cursor.read_i32::<LittleEndian>()?;
+    let leaf_face = LeafFace { face: face };
+    Ok(leaf_face)
+}
+
+#[derive(Debug)]
+pub struct LeafBrush {
+    pub brush: i32,
+}
+
+fn read_leaf_brush(cursor: &mut Cursor<Vec<u8>>) -> Result<LeafBrush> {
+    let brush = cursor.read_i32::<LittleEndian>()?;
+    let leaf_brush = LeafBrush { brush: brush };
+    Ok(leaf_brush)
+}
+
+#[derive(Debug)]
+pub struct Model {
+    pub mins: [f32; 3],
+    pub maxs: [f32; 3],
+    pub face: i32,
+    pub num_faces: i32,
+    pub brush: i32,
+    pub num_brushes: i32,
+}
+
+fn read_model(cursor: &mut Cursor<Vec<u8>>) -> Result<Model> {
+    let mins = [cursor.read_f32::<LittleEndian>()?,
+                cursor.read_f32::<LittleEndian>()?,
+                cursor.read_f32::<LittleEndian>()?];
+    let maxs = [cursor.read_f32::<LittleEndian>()?,
+                cursor.read_f32::<LittleEndian>()?,
+                cursor.read_f32::<LittleEndian>()?];
+    let face = cursor.read_i32::<LittleEndian>()?;
+    let num_faces = cursor.read_i32::<LittleEndian>()?;
+    let brush = cursor.read_i32::<LittleEndian>()?;
+    let num_brushes = cursor.read_i32::<LittleEndian>()?;
+    let model = Model {
+        mins: mins,
+        maxs: maxs,
+        face: face,
+        num_faces: num_faces,
+        brush: brush,
+        num_brushes: num_brushes,
+    };
+    Ok(model)
+}
+
+#[derive(Debug)]
+pub struct Brush {
+    pub brush_side: i32,
+    pub num_brush_sides: i32,
+    pub texture: i32,
+}
+
+fn read_brush(cursor: &mut Cursor<Vec<u8>>) -> Result<Brush> {
+    let brush_side = cursor.read_i32::<LittleEndian>()?;
+    let num_brush_sides = cursor.read_i32::<LittleEndian>()?;
+    let texture = cursor.read_i32::<LittleEndian>()?;
+    let brush = Brush {
+        brush_side: brush_side,
+        num_brush_sides: num_brush_sides,
+        texture: texture,
+    };
+    Ok(brush)
+}
+
+#[derive(Debug)]
+pub struct BrushSide {
+    pub plane: i32,
+    pub texture: i32,
+}
+
+fn read_brush_side(cursor: &mut Cursor<Vec<u8>>) -> Result<BrushSide> {
+    let plane = cursor.read_i32::<LittleEndian>()?;
+    let texture = cursor.read_i32::<LittleEndian>()?;
+    let brush_side = BrushSide {
+        plane: plane,
+        texture: texture,
+    };
+    Ok(brush_side)
+}
+
+#[derive(Debug)]
+pub struct Vertex {
+    pub position: [f32; 3],
+    pub tex_coord1: [f32; 2],
+    pub tex_coord2: [f32; 2],
+    pub normal: [f32; 3],
+    pub color: [u8; 4],
+}
+
+fn read_vertex(cursor: &mut Cursor<Vec<u8>>) -> Result<Vertex> {
+    let position = [cursor.read_f32::<LittleEndian>()?,
+                    cursor.read_f32::<LittleEndian>()?,
+                    cursor.read_f32::<LittleEndian>()?];
+    let tex_coord1 = [cursor.read_f32::<LittleEndian>()?, cursor.read_f32::<LittleEndian>()?];
+    let tex_coord2 = [cursor.read_f32::<LittleEndian>()?, cursor.read_f32::<LittleEndian>()?];
+    let normal = [cursor.read_f32::<LittleEndian>()?,
+                  cursor.read_f32::<LittleEndian>()?,
+                  cursor.read_f32::<LittleEndian>()?];
+    let color = [cursor.read_u8()?, cursor.read_u8()?, cursor.read_u8()?, cursor.read_u8()?];
+    let vertex = Vertex {
+        position: position,
+        tex_coord1: tex_coord1,
+        tex_coord2: tex_coord2,
+        normal: normal,
+        color: color,
+    };
+    Ok(vertex)
+}
+
+#[derive(Debug)]
+pub struct MeshVert {
+    pub offset: i32,
+}
+
+fn read_mesh_vert(cursor: &mut Cursor<Vec<u8>>) -> Result<MeshVert> {
+    let offset = cursor.read_i32::<LittleEndian>()?;
+    let mesh_vert = MeshVert { offset: offset };
+    Ok(mesh_vert)
+}
+
+#[derive(Debug)]
+pub struct BSP {
+    pub header: Header,
+    pub dir_entries: Vec<DirEntry>,
+    pub entities: Entity,
+    pub textures: Vec<Texture>,
+    pub planes: Vec<Plane>,
+    pub nodes: Vec<Node>,
+    pub leafs: Vec<Leaf>,
+    pub leaf_faces: Vec<LeafFace>,
+    pub leaf_brushes: Vec<LeafBrush>,
+    pub models: Vec<Model>,
+    pub brushes: Vec<Brush>,
+    pub brush_sides: Vec<BrushSide>,
+    pub vertexes: Vec<Vertex>,
+    pub mesh_verts: Vec<MeshVert>,
+}
+
+pub fn read_bsp(bytes: Vec<u8>) -> Result<BSP> {
     let mut cursor = Cursor::new(bytes);
     let header = read_header(&mut cursor)?;
     let version = read_version(&mut cursor)?;
     assert_eq!(version, 0x2e);
     let dir_entries = read_directories(&mut cursor)?;
     let entities = read_entities(&mut cursor, &dir_entries[0])?;
-    let textures = read_entry(&mut cursor, &dir_entries[1], read_texture)?; //read_textures(&mut cursor, &dir_entries[1])?;
+    let textures = read_entry(&mut cursor, &dir_entries[1], read_texture)?;
     let planes = read_entry(&mut cursor, &dir_entries[2], read_plane)?;
-    Ok ({ BSP { header : header, 
+    let nodes = read_entry(&mut cursor, &dir_entries[3], read_node)?;
+    let leafs = read_entry(&mut cursor, &dir_entries[4], read_leaf)?;
+    let leaf_faces = read_entry(&mut cursor, &dir_entries[5], read_leaf_face)?;
+    let leaf_brushes = read_entry(&mut cursor, &dir_entries[6], read_leaf_brush)?;
+    let models = read_entry(&mut cursor, &dir_entries[7], read_model)?;
+    let brushes = read_entry(&mut cursor, &dir_entries[8], read_brush)?;
+    let brush_sides = read_entry(&mut cursor, &dir_entries[9], read_brush_side)?;
+    let vertexes = read_entry(&mut cursor, &dir_entries[10], read_vertex)?;
+    let mesh_verts = read_entry(&mut cursor, &dir_entries[11], read_mesh_vert)?;
+    Ok({
+        BSP {
+            header: header,
             dir_entries: dir_entries,
             entities: entities,
             textures: textures,
-                planes : planes }})
+            planes: planes,
+            nodes: nodes,
+            leafs: leafs,
+            leaf_faces: leaf_faces,
+            leaf_brushes: leaf_brushes,
+            models: models,
+            brushes: brushes,
+            brush_sides: brush_sides,
+            vertexes: vertexes,
+            mesh_verts: mesh_verts,
+        }
+    })
 }