StrafesNET/strafe-client
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introduce DirectedEdge

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This commit is contained in:
Quaternions 2023-11-10 15:23:28 -08:00
parent 717cf2290d
commit 3cbefbab03
1 changed files with 27 additions and 11 deletions
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38
src/model_physics.rs
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@ -5,6 +5,22 @@ use std::borrow::Cow;
pub struct VertId(usize);
#[derive(Debug,Clone,Copy,Hash,Eq,PartialEq)]
pub struct EdgeId(usize);
impl EdgeId{
fn as_directed_edge_id(&self,parity:bool)->DirectedEdgeId{
DirectedEdgeId(self.0|((parity as usize)<<(usize::BITS-1)))
}
}
/// DirectedEdgeId refers to an EdgeId when undirected.
#[derive(Debug,Clone,Copy,Hash,Eq,PartialEq)]
pub struct DirectedEdgeId(usize);
impl DirectedEdgeId{
fn as_edge_id(&self)->EdgeId{
EdgeId(self.0&!(1<<(usize::BITS-1)))
}
fn signum(&self)->isize{
((self.0&(1<<(usize::BITS-1))!=0) as isize)*2-1
}
}
#[derive(Debug,Clone,Copy,Hash,Eq,PartialEq)]
pub struct FaceId(usize);
@ -36,7 +52,7 @@ struct EdgeRefs{
}
struct VertRefs{
faces:Vec<FaceId>,
edges:Vec<EdgeId>,
edges:Vec<DirectedEdgeId>,
}
pub struct PhysicsMesh{
faces:Vec<Face>,
@ -48,18 +64,18 @@ pub struct PhysicsMesh{
#[derive(Default,Clone)]
struct VertRefGuy{
edges:std::collections::HashSet<EdgeId>,
edges:std::collections::HashSet<DirectedEdgeId>,
faces:std::collections::HashSet<FaceId>,
}
#[derive(Clone,Hash,Eq,PartialEq)]
struct EdgeIdGuy([VertId;2]);
impl EdgeIdGuy{
fn new(v0:VertId,v1:VertId)->Self{
if v0.0<v1.0{
fn new(v0:VertId,v1:VertId)->(Self,bool){
(if v0.0<v1.0{
Self([v0,v1])
}else{
Self([v1,v0])
}
},v0.0<v1.0)
}
}
struct EdgeRefGuy([FaceId;2]);
@ -92,7 +108,7 @@ impl EdgePool{
impl From<&crate::model::IndexedModel> for PhysicsMesh{
fn from(indexed_model:&crate::model::IndexedModel)->Self{
let verts=indexed_model.unique_pos.iter().map(|v|Vert(v.clone())).collect();
let mut vert_edges=vec![VertRefGuy::default();indexed_model.unique_pos.len()];
let mut vert_ref_guys=vec![VertRefGuy::default();indexed_model.unique_pos.len()];
let mut edge_pool=EdgePool::default();
let mut face_i=0;
let mut faces=Vec::new();
@ -114,7 +130,7 @@ impl From<&crate::model::IndexedModel> for PhysicsMesh{
(v0.x()-v1.x())*(v0.y()+v1.y()),
);
//get/create edge and push face into it
let edge_id_guy=EdgeIdGuy::new(VertId(vert0_id),VertId(vert1_id));
let (edge_id_guy,is_sorted)=EdgeIdGuy::new(VertId(vert0_id),VertId(vert1_id));
let (edge_ref_guy,edge_id,exists)=edge_pool.push(edge_id_guy);
if exists{
edge_ref_guy.push(1,face_id);
@ -123,10 +139,10 @@ impl From<&crate::model::IndexedModel> for PhysicsMesh{
}
//index edges & face into vertices
{
let vert_ref_guy=unsafe{vert_edges.get_unchecked_mut(vert0_id)};
vert_ref_guy.edges.insert(edge_id);
let vert_ref_guy=unsafe{vert_ref_guys.get_unchecked_mut(vert0_id)};
vert_ref_guy.edges.insert(edge_id.as_directed_edge_id(!is_sorted));
vert_ref_guy.faces.insert(face_id);
unsafe{vert_edges.get_unchecked_mut(vert1_id)}.edges.insert(edge_id);
unsafe{vert_ref_guys.get_unchecked_mut(vert1_id)}.edges.insert(edge_id.as_directed_edge_id(is_sorted));
}
//return edge_id
edge_id
@ -162,7 +178,7 @@ impl From<&crate::model::IndexedModel> for PhysicsMesh{
edge_topology:edge_pool.edge_guys.into_iter().map(|(edge_id_guy,edge_ref_guy)|
EdgeRefs{faces:edge_ref_guy.0,verts:edge_id_guy.0}
).collect(),
vert_topology:vert_edges.into_iter().map(|vert_ref_guy|
vert_topology:vert_ref_guys.into_iter().map(|vert_ref_guy|
VertRefs{
edges:vert_ref_guy.edges.into_iter().collect(),
faces:vert_ref_guy.faces.into_iter().collect(),