more object convert work

examples/convert.rs

@@ -1,6 +1,5 @@
 use main_error::MainError;
 use obj::{Group, IndexTuple, Obj, ObjData, Object, SimplePolygon};
-use vbsp::TextureFlags;
 
 fn main() -> Result<(), MainError> {
     let mut args = std::env::args();
@@ -8,58 +7,40 @@ fn main() -> Result<(), MainError> {
     let data = std::fs::read(args.next().expect("No demo file provided"))?;
     let bsp = vbsp::Bsp::read(&data)?;
 
-    let exclude_faces = TextureFlags::LIGHT
-        | TextureFlags::SKY2D
-        | TextureFlags::SKY
-        | TextureFlags::WARP
-        | TextureFlags::TRANS
-        | TextureFlags::TRIGGER
-        | TextureFlags::HINT
-        | TextureFlags::SKIP
-        | TextureFlags::NODRAW
-        | TextureFlags::HITBOX;
-
-    let vertices = bsp
+    let vertices: Vec<_> = bsp
         .vertices
         .iter()
-        .map(|vertex| <[f32; 3]>::from(&vertex.position))
+        .map(|vertex| <[f32; 3]>::from(vertex.position))
         .collect();
 
-    let objects = bsp
-        .models()
-        .next() // only do "worldspawn" for now
-        .into_iter()
-        .map(|model| Group {
+    let world_model = bsp.models().next().unwrap();
+
+    let world_polygons = world_model
+        .faces()
+        .filter(|face| face.is_visible())
+        .map(|face| {
+            face.vertex_indexes()
+                .map(|vertex_index| IndexTuple(vertex_index as usize, None, None))
+                .collect()
+        })
+        .map(SimplePolygon)
+        .collect();
+
+    let world_object = Object {
+        name: "".to_string(),
+        groups: vec![Group {
             name: "".to_string(),
             index: 0,
             material: None,
-            polys: model
-                .faces()
-                .filter(|face| {
-                    face.texture()
-                        .map(|texture| !texture.flags.intersects(exclude_faces))
-                        .unwrap_or_default()
-                })
-                .map(|face| {
-                    SimplePolygon(
-                        face.vertex_indexes()
-                            .map(|vertex| IndexTuple(vertex as usize, None, None))
-                            .collect(),
-                    )
-                })
-                .collect(),
-        })
-        .map(|group| Object {
-            name: "".to_string(),
-            groups: vec![group],
-        })
-        .collect();
+            polys: world_polygons,
+        }],
+    };
 
     let obj_data = ObjData {
         position: vertices,
         texture: Vec::new(),
         normal: Vec::new(),
-        objects,
+        objects: vec![world_object],
         material_libs: Vec::new(),
     };
 

src/data.rs

@@ -9,7 +9,7 @@ use std::fmt;
 use std::io::{Error, ErrorKind};
 use std::iter::once;
 use std::mem::size_of;
-use std::ops::Index;
+use std::ops::{Add, Index};
 
 #[derive(Clone)]
 pub struct Directories {
@@ -216,7 +216,7 @@ impl BinRead for Name {
     }
 }
 
-#[derive(Debug, Clone, BinRead)]
+#[derive(Debug, Clone, Copy, BinRead)]
 pub struct Vector {
     pub x: f32,
     pub y: f32,
@@ -229,6 +229,18 @@ impl Vector {
     }
 }
 
+impl Add<Vector> for Vector {
+    type Output = Vector;
+
+    fn add(self, rhs: Vector) -> Self::Output {
+        Vector {
+            x: self.x + rhs.x,
+            y: self.y + rhs.y,
+            z: self.z + rhs.z,
+        }
+    }
+}
+
 impl From<Vector> for [f32; 3] {
     fn from(vector: Vector) -> Self {
         [vector.x, vector.y, vector.z]

src/lib.rs

@@ -1,5 +1,5 @@
 mod bspfile;
-mod data;
+pub mod data;
 mod reader;
 
 use crate::bspfile::LumpType;
@@ -371,6 +371,25 @@ impl<'a> Handle<'a, Face> {
                 EdgeDirection::LastToFirst => edge.end_index,
             })
     }
+
+    pub fn is_visible(&self) -> bool {
+        self.texture()
+            .map(|texture| {
+                !texture.flags.intersects(
+                    TextureFlags::LIGHT
+                        | TextureFlags::SKY2D
+                        | TextureFlags::SKY
+                        | TextureFlags::WARP
+                        | TextureFlags::TRANS
+                        | TextureFlags::TRIGGER
+                        | TextureFlags::HINT
+                        | TextureFlags::SKIP
+                        | TextureFlags::NODRAW
+                        | TextureFlags::HITBOX,
+                )
+            })
+            .unwrap_or_default()
+    }
 }
 
 impl Handle<'_, Node> {