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poly iter

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Quaternions 2024-02-05 15:25:44 -08:00
parent 56bf453337
commit 0f0da179a2
1 changed files with 7 additions and 7 deletions
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14
src/model_physics.rs
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@ -144,14 +144,14 @@ impl From<&model::IndexedModel> for PhysicsMesh{
let mut face_i=0;
let mut faces=Vec::new();
let mut face_ref_guys=Vec::new();
for group in indexed_model.polygon_groups.iter(){for poly in group.polys(){
for group in &indexed_model.polygon_groups{for poly_vertices in group.polys(){
let face_id=FaceId(face_i);
//one face per poly
let mut normal=Planar64Vec3::ZERO;
let len=poly.vertices.len();
let face_edges=poly.vertices.iter().enumerate().map(|(i,&vert_id)|{
let vert0_id=indexed_model.unique_vertices[vert_id as usize].pos.get() as usize;
let vert1_id=indexed_model.unique_vertices[poly.vertices[(i+1)%len] as usize].pos.get() as usize;
let len=poly_vertices.len();
let face_edges=poly_vertices.iter().enumerate().map(|(i,&vert_id)|{
let vert0_id=indexed_model.unique_vertices[vert_id.get() as usize].pos.get() as usize;
let vert1_id=indexed_model.unique_vertices[poly_vertices[(i+1)%len].get() as usize].pos.get() as usize;
//https://www.khronos.org/opengl/wiki/Calculating_a_Surface_Normal (Newell's Method)
let v0=indexed_model.unique_pos[vert0_id];
let v1=indexed_model.unique_pos[vert1_id];
@ -179,8 +179,8 @@ impl From<&model::IndexedModel> for PhysicsMesh{
//choose precision loss randomly idk
normal=normal/len as i64;
let mut dot=Planar64::ZERO;
for &v in poly.vertices.iter(){
dot+=normal.dot(indexed_model.unique_pos[indexed_model.unique_vertices[v as usize].pos.get() as usize]);
for &v in poly_vertices{
dot+=normal.dot(indexed_model.unique_pos[indexed_model.unique_vertices[v.get() as usize].pos.get() as usize]);
}
faces.push(Face{normal,dot:dot/len as i64});
face_ref_guys.push(FaceRefEdges(face_edges));