use .entry() match in generate_models

engine/physics/src/physics.rs

@@ -1006,10 +1006,9 @@ impl PhysicsData{
 		let mut used_meshes=Vec::new();
 		let mut physics_mesh_id_from_model_mesh_id=HashMap::<MeshId,PhysicsMeshId>::new();
 		for (model_id,model) in map.models.iter().enumerate(){
-			//TODO: use .entry().or_insert_with(||{
-			let attr_id=if let Some(&attr_id)=physics_attr_id_from_model_attr_id.get(&model.attributes){
-				attr_id
-			}else{
+			let attr_id=match physics_attr_id_from_model_attr_id.entry(model.attributes){
+				std::collections::hash_map::Entry::Occupied(entry)=>*entry.get(),
+				std::collections::hash_map::Entry::Vacant(entry)=>{
 					//check if it's real
 					match map.attributes.get(model.attributes.get() as usize).and_then(|m_attr|{
 						PhysicsCollisionAttributes::try_from(m_attr).map_or(None,|p_attr|{
@@ -1025,13 +1024,13 @@ impl PhysicsData{
 									PhysicsAttributesId::Intersect(attr_id)
 								},
 							};
-						physics_attr_id_from_model_attr_id.insert(model.attributes,attr_id);
-						Some(attr_id)
+							Some(*entry.insert(attr_id))
 						})
 					}){
 						Some(attr_id)=>attr_id,
 						None=>continue,
 					}
+				}
 			};
 			let mesh_id=if let Some(&mesh_id)=physics_mesh_id_from_model_mesh_id.get(&model.mesh){
 				mesh_id