From 4f56b9b6bdb4f85a58311061da9acbd5a55271ad Mon Sep 17 00:00:00 2001
From: Quaternions <krakow20@gmail.com>
Date: Tue, 30 Jan 2024 17:42:41 -0800
Subject: [PATCH] Initial commit
---
.gitignore | 1 +
Cargo.lock | 559 +++++++++++++++++++++++++++++++++++++++++++++++++
Cargo.toml | 12 ++
LICENSE-APACHE | 176 ++++++++++++++++
LICENSE-MIT | 23 ++
README.md | 19 ++
src/bsp.rs | 237 +++++++++++++++++++++
src/lib.rs | 1 +
8 files changed, 1028 insertions(+)
create mode 100644 .gitignore
create mode 100644 Cargo.lock
create mode 100644 Cargo.toml
create mode 100644 LICENSE-APACHE
create mode 100644 LICENSE-MIT
create mode 100644 README.md
create mode 100644 src/bsp.rs
create mode 100644 src/lib.rs
diff --git a/.gitignore b/.gitignore
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diff --git a/Cargo.toml b/Cargo.toml
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index 000000000..8078120e8
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+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+glam = "0.25.0"
+strafesnet_common = { git = "https://git.itzana.me/StrafesNET/common", rev = "434ca29aef7e3015c9ca1ed45de8fef42e33fdfb" }
+vbsp = "0.5.0"
+vmdl = "0.1.1"
diff --git a/LICENSE-APACHE b/LICENSE-APACHE
new file mode 100644
index 000000000..a7e77cb28
--- /dev/null
+++ b/LICENSE-APACHE
@@ -0,0 +1,176 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
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+ the terms of any separate license agreement you may have executed
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+6. Trademarks. This License does not grant permission to use the trade
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+ risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
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+END OF TERMS AND CONDITIONS
\ No newline at end of file
diff --git a/LICENSE-MIT b/LICENSE-MIT
new file mode 100644
index 000000000..468cd79a8
--- /dev/null
+++ b/LICENSE-MIT
@@ -0,0 +1,23 @@
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 000000000..c9800e24f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,19 @@
+StrafesNET BSP Loader
+=====================
+
+## Convert Valve BSP files into StrafesNET data structures
+
+#### License
+
+<sup>
+Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
+2.0</a> or <a href="LICENSE-MIT">MIT license</a> at your option.
+</sup>
+
+<br>
+
+<sub>
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
+be dual licensed as above, without any additional terms or conditions.
+</sub>
\ No newline at end of file
diff --git a/src/bsp.rs b/src/bsp.rs
new file mode 100644
index 000000000..1781c483c
--- /dev/null
+++ b/src/bsp.rs
@@ -0,0 +1,237 @@
+use strafesnet_common::{model,integer};
+
+const VALVE_SCALE:f32=1.0/16.0;
+fn valve_transform(v:[f32;3])->integer::Planar64Vec3{
+ integer::Planar64Vec3::try_from([v[0]*VALVE_SCALE,v[2]*VALVE_SCALE,-v[1]*VALVE_SCALE]).unwrap()
+}
+pub fn generate_indexed_models<R:std::io::Read+std::io::Seek>(input:&mut R)->Result<model::IndexedModelInstances,vbsp::BspError>{
+ let mut s=Vec::new();
+
+ match input.read_to_end(&mut s){
+ Ok(_)=>(),
+ Err(e)=>println!("load_bsp::generate_indexed_models read_to_end failed: {:?}",e),
+ }
+
+ match vbsp::Bsp::read(s.as_slice()){
+ Ok(bsp)=>{
+ let mut spawn_point=integer::Planar64Vec3::ZERO;
+
+ let vertices: Vec<_> = bsp
+ .vertices
+ .iter()
+ .map(|vertex|<[f32;3]>::from(vertex.position))
+ .collect();
+
+ let mut name_from_texture_id=Vec::new();
+ let mut texture_id_from_name=std::collections::HashMap::new();
+
+ let mut models=bsp.models().map(|world_model|{
+ //non-deduplicated
+ let mut spam_pos=Vec::new();
+ let mut spam_tex=Vec::new();
+ let mut spam_normal=Vec::new();
+ let mut spam_vertices=Vec::new();
+ let groups=world_model.faces()
+ .filter(|face| face.is_visible())//TODO: look at this
+ .map(|face|{
+ let face_texture=face.texture();
+ let face_texture_data=face_texture.texture_data();
+ let (texture_u,texture_v)=(glam::Vec3A::from_slice(&face_texture.texture_transforms_u[0..3]),glam::Vec3A::from_slice(&face_texture.texture_transforms_v[0..3]));
+ let texture_offset=glam::vec2(face_texture.texture_transforms_u[3],face_texture.texture_transforms_v[3]);
+ let texture_size=glam::vec2(face_texture_data.width as f32,face_texture_data.height as f32);
+
+ //texture
+ let texture_id=if let Some(&texture_id)=texture_id_from_name.get(face_texture_data.name()){
+ texture_id
+ }else{
+ let texture_id=name_from_texture_id.len() as u32;
+ texture_id_from_name.insert(face_texture_data.name().to_string(),texture_id);
+ name_from_texture_id.push(face_texture_data.name().to_string());
+ texture_id
+ };
+
+ //normal
+ let normal=face.normal();
+ let normal_idx=spam_normal.len() as u32;
+ spam_normal.push(valve_transform(<[f32;3]>::from(normal)));
+ let mut vertices:Vec<u32>=face.vertex_indexes().map(|vertex_index|{
+ let pos=glam::Vec3A::from_array(vertices[vertex_index as usize]);
+ let pos_idx=spam_pos.len();
+ spam_pos.push(valve_transform(vertices[vertex_index as usize]));
+
+ //calculate texture coordinates
+ let tex=(glam::vec2(pos.dot(texture_u),pos.dot(texture_v))+texture_offset)/texture_size;
+ let tex_idx=spam_tex.len() as u32;
+ spam_tex.push(tex);
+
+ let i=spam_vertices.len() as u32;
+ spam_vertices.push(model::IndexedVertex{
+ pos: pos_idx as u32,
+ tex: tex_idx as u32,
+ normal: normal_idx,
+ color: 0,
+ });
+ i
+ }).collect();
+ vertices.reverse();
+ model::IndexedGroup{
+ texture:Some(texture_id),
+ polys:vec![model::IndexedPolygon{vertices}],
+ }
+ }).collect();
+ model::IndexedModel{
+ unique_pos:spam_pos,
+ unique_tex:spam_tex,
+ unique_normal:spam_normal,
+ unique_color:vec![glam::Vec4::ONE],
+ unique_vertices:spam_vertices,
+ groups,
+ instances:vec![model::ModelInstance{
+ attributes:model::CollisionAttributes::Decoration,
+ transform:integer::Planar64Affine3::new(
+ integer::Planar64Mat3::default(),
+ valve_transform(<[f32;3]>::from(world_model.origin))
+ ),
+ ..Default::default()
+ }],
+ }
+ }).collect();
+
+ //dedupe prop models
+ let mut model_dedupe=std::collections::HashSet::new();
+ for prop in bsp.static_props(){
+ model_dedupe.insert(prop.model());
+ }
+
+ //generate unique meshes
+ let mut model_map=std::collections::HashMap::with_capacity(model_dedupe.len());
+ let mut prop_models=Vec::new();
+ for model_name in model_dedupe{
+ let model_name_lower=model_name.to_lowercase();
+ //.mdl, .vvd, .dx90.vtx
+ let mut path=std::path::PathBuf::from(model_name_lower.as_str());
+ let file_name=std::path::PathBuf::from(path.file_stem().unwrap());
+ path.pop();
+ path.push(file_name);
+ let mut vvd_path=path.clone();
+ let mut vtx_path=path.clone();
+ vvd_path.set_extension("vvd");
+ vtx_path.set_extension("dx90.vtx");
+ match (bsp.pack.get(model_name_lower.as_str()),bsp.pack.get(vvd_path.as_os_str().to_str().unwrap()),bsp.pack.get(vtx_path.as_os_str().to_str().unwrap())){
+ (Ok(Some(mdl_file)),Ok(Some(vvd_file)),Ok(Some(vtx_file)))=>{
+ match (vmdl::mdl::Mdl::read(mdl_file.as_ref()),vmdl::vvd::Vvd::read(vvd_file.as_ref()),vmdl::vtx::Vtx::read(vtx_file.as_ref())){
+ (Ok(mdl),Ok(vvd),Ok(vtx))=>{
+ let model=vmdl::Model::from_parts(mdl,vtx,vvd);
+ let texture_paths=model.texture_directories();
+ if texture_paths.len()!=1{
+ println!("WARNING: multiple texture paths");
+ }
+ let skin=model.skin_tables().nth(0).unwrap();
+
+ let mut spam_pos=Vec::with_capacity(model.vertices().len());
+ let mut spam_normal=Vec::with_capacity(model.vertices().len());
+ let mut spam_tex=Vec::with_capacity(model.vertices().len());
+ let mut spam_vertices=Vec::with_capacity(model.vertices().len());
+ for (i,vertex) in model.vertices().iter().enumerate(){
+ spam_pos.push(valve_transform(<[f32;3]>::from(vertex.position)));
+ spam_normal.push(valve_transform(<[f32;3]>::from(vertex.normal)));
+ spam_tex.push(glam::Vec2::from_array(vertex.texture_coordinates));
+ spam_vertices.push(model::IndexedVertex{
+ pos:i as u32,
+ tex:i as u32,
+ normal:i as u32,
+ color:0,
+ });
+ }
+
+ let model_id=prop_models.len();
+ model_map.insert(model_name,model_id);
+ prop_models.push(model::IndexedModel{
+ unique_pos:spam_pos,
+ unique_normal:spam_normal,
+ unique_tex:spam_tex,
+ unique_color:vec![glam::Vec4::ONE],
+ unique_vertices:spam_vertices,
+ groups:model.meshes().map(|mesh|{
+ let texture=if let (Some(texture_path),Some(texture_name))=(texture_paths.get(0),skin.texture(mesh.material_index())){
+ let mut path=std::path::PathBuf::from(texture_path.as_str());
+ path.push(texture_name);
+ let texture_location=path.as_os_str().to_str().unwrap();
+ let texture_id=if let Some(&texture_id)=texture_id_from_name.get(texture_location){
+ texture_id
+ }else{
+ println!("texture! {}",texture_location);
+ let texture_id=name_from_texture_id.len() as u32;
+ texture_id_from_name.insert(texture_location.to_string(),texture_id);
+ name_from_texture_id.push(texture_location.to_string());
+ texture_id
+ };
+ Some(texture_id)
+ }else{
+ None
+ };
+
+ model::IndexedGroup{
+ texture,
+ polys:{
+ //looking at the code, it would seem that the strips are pre-deindexed into triangle lists when calling this function
+ mesh.vertex_strip_indices().map(|strip|{
+ strip.collect::<Vec<usize>>().chunks(3).map(|tri|{
+ model::IndexedPolygon{vertices:vec![tri[0] as u32,tri[1] as u32,tri[2] as u32]}
+ }).collect::<Vec<model::IndexedPolygon>>()
+ }).flatten().collect()
+ },
+ }
+ }).collect(),
+ instances:Vec::new(),
+ });
+ },
+ _=>println!("model_name={} error",model_name),
+ }
+ },
+ _=>println!("no model name={}",model_name),
+ }
+ }
+
+ //generate model instances
+ for prop in bsp.static_props(){
+ let placement=prop.as_prop_placement();
+ if let Some(&model_index)=model_map.get(placement.model){
+ prop_models[model_index].instances.push(model::ModelInstance{
+ transform:integer::Planar64Affine3::new(
+ integer::Planar64Mat3::try_from(
+ glam::Mat3A::from_diagonal(glam::Vec3::splat(placement.scale))
+ //TODO: figure this out
+ *glam::Mat3A::from_quat(glam::Quat::from_xyzw(
+ placement.rotation.v.x,//b
+ placement.rotation.v.y,//c
+ placement.rotation.v.z,//d
+ placement.rotation.s,//a
+ ))
+ ).unwrap(),
+ valve_transform(<[f32;3]>::from(placement.origin)),
+ ),
+ attributes:model::CollisionAttributes::Decoration,
+ ..Default::default()
+ });
+ }else{
+ //println!("model not found {}",placement.model);
+ }
+ }
+
+ //actually add the prop models
+ prop_models.append(&mut models);
+
+ Ok(model::IndexedModelInstances{
+ textures:name_from_texture_id,
+ models:prop_models,
+ spawn_point,
+ modes:Vec::new(),
+ })
+ },
+ Err(e)=>{
+ println!("rotten {:?}",e);
+ Err(e)
+ },
+ }
+}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 000000000..e06ee2d8a
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1 @@
+pub mod bsp;
\ No newline at end of file