Files
strafe-project/lib/bsp_loader/src/bsp.rs
2025-11-17 12:41:34 -08:00

418 lines
18 KiB
Rust

use std::borrow::Cow;
use vbsp_entities_css::Entity;
use strafesnet_common::{map,model,integer,gameplay_attributes as attr};
use strafesnet_deferred_loader::deferred_loader::{MeshDeferredLoader,RenderConfigDeferredLoader};
use strafesnet_deferred_loader::mesh::Meshes;
use strafesnet_deferred_loader::texture::{RenderConfigs,Texture};
use strafesnet_common::gameplay_modes::{NormalizedMode,NormalizedModes,Mode,Stage};
use crate::valve_transform;
fn ingest_vertex(
mb:&mut model::MeshBuilder,
world_position:vbsp::Vector,
texture_transform_u:glam::Vec4,
texture_transform_v:glam::Vec4,
normal:model::NormalId,
color:model::ColorId,
)->model::VertexId{
//world_model.origin seems to always be 0,0,0
let vertex_xyz=world_position.into();
let pos=mb.acquire_pos_id(valve_transform(vertex_xyz));
//calculate texture coordinates
let pos_4d=glam::Vec3::from_array(vertex_xyz).extend(1.0);
let tex=glam::vec2(texture_transform_u.dot(pos_4d),texture_transform_v.dot(pos_4d));
let tex=mb.acquire_tex_id(tex);
mb.acquire_vertex_id(model::IndexedVertex{
pos,
tex,
normal,
color,
})
}
fn add_brush<'a>(
mesh_deferred_loader:&mut MeshDeferredLoader<&'a str>,
world_models:&mut Vec<model::Model>,
prop_models:&mut Vec<model::Model>,
model:&'a str,
origin:vbsp::Vector,
rendercolor:vbsp::Color,
attributes:attr::CollisionAttributesId,
){
let transform=integer::Planar64Affine3::from_translation(
valve_transform(origin.into())
);
let color=(glam::Vec3::from_array([
rendercolor.r as f32,
rendercolor.g as f32,
rendercolor.b as f32
])/255.0).extend(1.0);
match model.chars().next(){
// The first character of brush.model is '*'
Some('*')=>match model[1..].parse(){
Ok(mesh_id)=>{
let mesh=model::MeshId::new(mesh_id);
world_models.push(
model::Model{mesh,attributes,transform,color}
);
},
Err(e)=>{
println!("Brush model int parse error: {e} model={model}");
return;
},
},
_=>{
let mesh=mesh_deferred_loader.acquire_mesh_id(model);
prop_models.push(
model::Model{mesh,attributes,transform,color}
);
}
}
}
pub fn convert<'a>(
bsp:&'a crate::Bsp,
render_config_deferred_loader:&mut RenderConfigDeferredLoader<Cow<'a,str>>,
mesh_deferred_loader:&mut MeshDeferredLoader<&'a str>,
)->PartialMap1{
let bsp=bsp.as_ref();
//figure out real attributes later
let unique_attributes=vec![
attr::CollisionAttributes::Decoration,
attr::CollisionAttributes::contact_default(),
attr::CollisionAttributes::intersect_default(),
// ladder
attr::CollisionAttributes::Contact(
attr::ContactAttributes{
contacting:attr::ContactingAttributes{
contact_behaviour:Some(attr::ContactingBehaviour::Ladder(
attr::ContactingLadder{sticky:true}
))
},
general:attr::GeneralAttributes::default(),
}
),
// water
attr::CollisionAttributes::Intersect(
attr::IntersectAttributes{
intersecting:attr::IntersectingAttributes{
water:Some(attr::IntersectingWater{
viscosity:integer::Planar64::ONE,
density:integer::Planar64::ONE,
velocity:integer::vec3::ZERO,
}),
},
general:attr::GeneralAttributes::default(),
}
),
];
const ATTRIBUTE_DECORATION:attr::CollisionAttributesId=attr::CollisionAttributesId::new(0);
const ATTRIBUTE_CONTACT_DEFAULT:attr::CollisionAttributesId=attr::CollisionAttributesId::new(1);
const ATTRIBUTE_INTERSECT_DEFAULT:attr::CollisionAttributesId=attr::CollisionAttributesId::new(2);
const ATTRIBUTE_LADDER_DEFAULT:attr::CollisionAttributesId=attr::CollisionAttributesId::new(3);
const ATTRIBUTE_WATER_DEFAULT:attr::CollisionAttributesId=attr::CollisionAttributesId::new(4);
//declare all prop models to Loader
let mut prop_models=bsp.static_props().map(|prop|{
const DEG_TO_RAD:f32=std::f32::consts::TAU/360.0;
//get or create mesh_id
let mesh_id=mesh_deferred_loader.acquire_mesh_id(prop.model());
model::Model{
mesh:mesh_id,
attributes:ATTRIBUTE_DECORATION,
transform:integer::Planar64Affine3::new(
integer::mat3::try_from_f32_array_2d(
//TODO: figure this out
glam::Mat3A::from_euler(
glam::EulerRot::XYZ,
prop.angles.pitch*DEG_TO_RAD,
prop.angles.yaw*DEG_TO_RAD,
prop.angles.roll*DEG_TO_RAD
).to_cols_array_2d()
).unwrap(),
valve_transform(prop.origin.into()),
),
color:glam::Vec4::ONE,
}
}).collect();
//TODO: make the main map one single mesh with a bunch of different physics groups and graphics groups
//the generated MeshIds in here will collide with the Loader Mesh Ids
//but I can't think of a good workaround other than just remapping one later.
let mut world_meshes:Vec<model::Mesh>=bsp.models().map(|world_model|{
let mut mb=model::MeshBuilder::new();
let color=mb.acquire_color_id(glam::Vec4::ONE);
let mut graphics_groups=Vec::new();
let mut render_id_to_graphics_group_id=std::collections::HashMap::new();
let polygon_groups=world_model.faces().enumerate().map(|(polygon_group_id,face)|{
let polygon_group_id=model::PolygonGroupId::new(polygon_group_id as u32);
let face_texture=face.texture();
let face_texture_data=face_texture.texture_data();
//this would be better as a 4x2 matrix
let texture_transform_u=glam::Vec4::from_array(face_texture.texture_transforms_u)/(face_texture_data.width as f32);
let texture_transform_v=glam::Vec4::from_array(face_texture.texture_transforms_v)/(face_texture_data.height as f32);
//normal
let normal=mb.acquire_normal_id(valve_transform(face.normal().into()));
let mut polygon_iter=face.vertex_positions().map(|vertex_position|
world_model.origin+vertex_position
);
let polygon_list=std::iter::from_fn(move||{
match (polygon_iter.next(),polygon_iter.next(),polygon_iter.next()){
(Some(v1),Some(v2),Some(v3))=>Some([v1,v2,v3]),
//ignore extra vertices, not sure what to do in this case, failing the whole conversion could be appropriate
_=>None,
}
}).map(|triplet|{
triplet.map(|world_position|
ingest_vertex(&mut mb,world_position,texture_transform_u,texture_transform_v,normal,color)
).to_vec()
}).collect();
if face.is_visible(){
//this automatically figures out what the texture is trying to do and creates
//a render config for it, and then returns the id to that render config
let render_id=render_config_deferred_loader.acquire_render_config_id(Some(Cow::Borrowed(face_texture_data.name())));
//deduplicate graphics groups by render id
let graphics_group_id=*render_id_to_graphics_group_id.entry(render_id).or_insert_with(||{
let graphics_group_id=graphics_groups.len();
graphics_groups.push(model::IndexedGraphicsGroup{
render:render_id,
groups:vec![],
});
graphics_group_id
});
graphics_groups[graphics_group_id].groups.push(polygon_group_id);
}
model::PolygonGroup::PolygonList(model::PolygonList::new(polygon_list))
}).collect();
mb.build(polygon_groups,graphics_groups,vec![])
}).collect();
let mut found_spawn=None;
let mut world_models=Vec::new();
// the one and only world model 0
world_models.push(model::Model{
mesh:model::MeshId::new(0),
attributes:ATTRIBUTE_DECORATION,
transform:integer::Planar64Affine3::IDENTITY,
color:glam::Vec4::W,
});
const WHITE:vbsp::Color=vbsp::Color{r:255,g:255,b:255};
for raw_ent in &bsp.entities{
match raw_ent.parse(){
Ok(Entity::Cycler(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::EnvSprite(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncBreakable(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncBrush(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncButton(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncDoor(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncDoorRotating(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncIllusionary(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncMonitor(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncMovelinear(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncPhysbox(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncPhysboxMultiplayer(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncRotButton(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::FuncRotating(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncTracktrain(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncTrain(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncWall(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin.unwrap_or_default(),brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncWallToggle(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin.unwrap_or_default(),brush.rendercolor,ATTRIBUTE_DECORATION),
Ok(Entity::FuncWaterAnalog(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,brush.rendercolor.unwrap_or(WHITE),ATTRIBUTE_DECORATION),
Ok(Entity::PropDoorRotating(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::PropDynamic(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::PropDynamicOverride(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::PropPhysics(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::PropPhysicsMultiplayer(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::PropPhysicsOverride(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::PropRagdoll(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerGravity(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerHurt(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerLook(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerMultiple(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model.unwrap_or_default(),brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerOnce(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerProximity(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerPush(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerSoundscape(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerTeleport(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model.unwrap_or_default(),brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerVphysicsMotion(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::TriggerWind(brush))=>add_brush(mesh_deferred_loader,&mut world_models,&mut prop_models,brush.model,brush.origin,WHITE,ATTRIBUTE_DECORATION),
Ok(Entity::InfoPlayerCounterterrorist(spawn))=>{
found_spawn=Some(valve_transform(spawn.origin.into()));
},
Ok(Entity::InfoPlayerTerrorist(spawn))=>{
found_spawn=Some(valve_transform(spawn.origin.into()));
},
Err(e)=>{
println!("Bsp Entity parse error: {e}");
},
_=>(),
}
}
// physics models
for brush in &bsp.brushes{
const RELEVANT:vbsp::BrushFlags=
vbsp::BrushFlags::SOLID
.union(vbsp::BrushFlags::PLAYERCLIP)
.union(vbsp::BrushFlags::WATER)
.union(vbsp::BrushFlags::MOVEABLE)
.union(vbsp::BrushFlags::LADDER);
if !brush.flags.intersects(RELEVANT){
continue;
}
let is_ladder=brush.flags.contains(vbsp::BrushFlags::LADDER);
let is_water=brush.flags.contains(vbsp::BrushFlags::WATER);
let attributes=match (is_ladder,is_water){
(true,false)=>ATTRIBUTE_LADDER_DEFAULT,
(false,true)=>ATTRIBUTE_WATER_DEFAULT,
(false,false)=>ATTRIBUTE_CONTACT_DEFAULT,
(true,true)=>{
// water ladder? wtf
println!("brush is a water ladder o_o defaulting to ladder");
ATTRIBUTE_LADDER_DEFAULT
}
};
let mesh_result=crate::brush::brush_to_mesh(bsp,brush);
match mesh_result{
Ok(mesh)=>{
let mesh_id=model::MeshId::new(world_meshes.len() as u32);
world_meshes.push(mesh);
world_models.push(model::Model{
mesh:mesh_id,
attributes,
transform:integer::Planar64Affine3::new(
integer::mat3::identity(),
integer::vec3::ZERO,
),
color:glam::Vec4::ONE,
});
},
Err(e)=>println!("Brush mesh error: {e}"),
}
}
let mut modes_list=Vec::new();
if let Some(spawn_point)=found_spawn{
// create a new mesh
let mesh_id=model::MeshId::new(world_meshes.len() as u32);
world_meshes.push(crate::brush::unit_cube());
// create a new model
let model_id=model::ModelId::new(world_models.len() as u32);
world_models.push(model::Model{
mesh:mesh_id,
attributes:ATTRIBUTE_INTERSECT_DEFAULT,
transform:integer::Planar64Affine3::from_translation(spawn_point),
color:glam::Vec4::W,
});
let first_stage=Stage::empty(model_id);
let main_mode=Mode::new(
strafesnet_common::gameplay_style::StyleModifiers::source_bhop(),
model_id,
std::collections::HashMap::new(),
vec![first_stage],
std::collections::HashMap::new(),
);
modes_list.push(NormalizedMode::new(main_mode));
}
PartialMap1{
attributes:unique_attributes,
world_meshes,
prop_models,
world_models,
modes:NormalizedModes::new(modes_list),
}
}
//partially constructed map types
pub struct PartialMap1{
attributes:Vec<attr::CollisionAttributes>,
prop_models:Vec<model::Model>,
world_meshes:Vec<model::Mesh>,
world_models:Vec<model::Model>,
modes:NormalizedModes,
}
impl PartialMap1{
pub fn add_prop_meshes(
self,
prop_meshes:Meshes<model::Mesh>,
)->PartialMap2{
PartialMap2{
attributes:self.attributes,
prop_meshes:prop_meshes.consume().collect(),
prop_models:self.prop_models,
world_meshes:self.world_meshes,
world_models:self.world_models,
modes:self.modes,
}
}
}
pub struct PartialMap2{
attributes:Vec<attr::CollisionAttributes>,
prop_meshes:Vec<(model::MeshId,model::Mesh)>,
prop_models:Vec<model::Model>,
world_meshes:Vec<model::Mesh>,
world_models:Vec<model::Model>,
modes:NormalizedModes,
}
impl PartialMap2{
pub fn add_render_configs_and_textures(
mut self,
render_configs:RenderConfigs,
)->map::CompleteMap{
//merge mesh and model lists, flatten and remap all ids
let mesh_id_offset=self.world_meshes.len();
println!("prop_meshes.len()={}",self.prop_meshes.len());
let (mut prop_meshes,prop_mesh_id_map):(Vec<model::Mesh>,std::collections::HashMap<model::MeshId,model::MeshId>)
=self.prop_meshes.into_iter().enumerate().map(|(new_mesh_id,(old_mesh_id,mesh))|{
(mesh,(old_mesh_id,model::MeshId::new((mesh_id_offset+new_mesh_id) as u32)))
}).unzip();
self.world_meshes.append(&mut prop_meshes);
//there is no modes or runtime behaviour with references to the model ids currently
//so just relentlessly cull them if the mesh is missing
self.world_models.extend(self.prop_models.into_iter().filter_map(|mut model|
prop_mesh_id_map.get(&model.mesh).map(|&new_mesh_id|{
model.mesh=new_mesh_id;
model
})
));
//let mut models=Vec::new();
let (textures,render_configs)=render_configs.consume();
let (textures,texture_id_map):(Vec<Vec<u8>>,std::collections::HashMap<model::TextureId,model::TextureId>)
=textures.into_iter()
//.filter_map(f) cull unused textures
.enumerate().map(|(new_texture_id,(old_texture_id,Texture::ImageDDS(texture)))|{
(texture,(old_texture_id,model::TextureId::new(new_texture_id as u32)))
}).unzip();
let render_configs=render_configs.into_iter().map(|(_render_config_id,mut render_config)|{
//this may generate duplicate no-texture render configs but idc
render_config.texture=render_config.texture.and_then(|texture_id|
texture_id_map.get(&texture_id).copied()
);
render_config
}).collect();
map::CompleteMap{
modes:self.modes,
attributes:self.attributes,
meshes:self.world_meshes,
models:self.world_models,
textures,
render_configs,
}
}
}