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remove intermediate allocation

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This commit is contained in:
Rhys Lloyd
2025-11-18 12:22:03 -08:00
parent a9e4705d89
commit 1e0511a7ba
1 changed files with 17 additions and 12 deletions
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29
engine/physics/src/physics.rs
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@@ -991,8 +991,6 @@ impl PhysicsData{
let mut contact_models=HashMap::new();
let mut intersect_models=HashMap::new();
let mut contacts_in_order=Vec::new();
let mut intersects_in_order=Vec::new();
let mut physics_attr_id_from_model_attr_id=HashMap::<CollisionAttributesId,PhysicsAttributesId>::new();
let mut used_meshes=Vec::new();
@@ -1054,7 +1052,6 @@ impl PhysicsData{
attr_id,
transform,
});
contacts_in_order.push(contact_model_id);
},
PhysicsAttributesId::Intersect(attr_id)=>{
let intersect_model_id=IntersectModelId::new(model_id as u32);
@@ -1063,7 +1060,6 @@ impl PhysicsData{
attr_id,
transform,
});
intersects_in_order.push(intersect_model_id);
},
}
}
@@ -1073,14 +1069,23 @@ impl PhysicsData{
(PhysicsMeshId::new(mesh_id as u32),mesh)
).collect();
let convex_mesh_aabb_list=
//map the two lists into a single type so they can be processed with one closure
contacts_in_order.iter().map(|model_id|{
let model=contact_models.get(model_id).unwrap();
(PhysicsModelId::Contact(*model_id),&model.mesh_id,&model.transform)
}).chain(intersects_in_order.iter().map(|model_id|{
let model=intersect_models.get(model_id).unwrap();
(PhysicsModelId::Intersect(*model_id),&model.mesh_id,&model.transform)
}))
// use the map models iteration order to ensure that the
// order that the models are passed into bvh::generate_bvh is consistent
map.models.iter().enumerate().filter_map(|(model_id,model)|{
match map.attributes.get(model.attributes.get() as usize)?{
gameplay_attributes::CollisionAttributes::Decoration=>None,
gameplay_attributes::CollisionAttributes::Contact(_)=>{
let model_id=ContactModelId::new(model_id as u32);
let model=contact_models.get(&model_id)?;
Some((PhysicsModelId::Contact(model_id),&model.mesh_id,&model.transform))
},
gameplay_attributes::CollisionAttributes::Intersect(_)=>{
let model_id=IntersectModelId::new(model_id as u32);
let model=intersect_models.get(&model_id)?;
Some((PhysicsModelId::Intersect(model_id),&model.mesh_id,&model.transform))
},
}
})
.flat_map(|(model_id,mesh_id,transform)|{
meshes[mesh_id].submesh_views()
.enumerate().map(move|(submesh_id,view)|{