diff --git a/engine/physics/src/minimum_difference.rs b/engine/physics/src/minimum_difference.rs
index a6c467dd..cb38536e 100644
--- a/engine/physics/src/minimum_difference.rs
+++ b/engine/physics/src/minimum_difference.rs
@@ -1,8 +1,8 @@
 use strafesnet_common::integer::vec3;
 use strafesnet_common::integer::vec3::Vector3;
-use strafesnet_common::integer::{Fixed,Planar64,Planar64Vec3};
+use strafesnet_common::integer::{Fixed,Planar64Vec3};
 
-use crate::model::{MeshQuery,MinkowskiMesh,MinkowskiVert,SubmeshVertId};
+use crate::model::{MeshQuery,MinkowskiMesh,MinkowskiVert};
 
 // This algorithm is based on Lua code
 // written by Trey Reynolds in 2021
@@ -41,7 +41,7 @@ fn simplex_abs_det_is_zero(mesh:&MinkowskiMesh,simplex:&Simplex)->bool{
 			let p0=mesh.vert(p0);
 			let p1=mesh.vert(p1);
 			let p2=mesh.vert(p2);
-			(p1-p0).cross(p2-p0)==const{Vector3::new([Fixed::ZERO,Fixed::ZERO,Fixed::ZERO])}
+			(p1-p0).cross(p2-p0)==vec3::zero()
 		},
 		&[p0,p1]=>{
 			let p0=mesh.vert(p0);