pull constant out of loop
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@ -49,12 +49,12 @@ enum Transition<F,E:DirectedEdge,V>{
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&FEV::<F,E,V>::Edge(edge_id)=>{
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//test each face collision time, ignoring roots with zero or conflicting derivative
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let edge_n=mesh.edge_n(edge_id);
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let edge_verts=mesh.edge_verts(edge_id);
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for (i,&edge_face_id) in mesh.edge_faces(edge_id).iter().enumerate(){
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let face_n=mesh.face_nd(edge_face_id).0;
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//edge_n gets parity from the order of edge_faces
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let n=edge_n.cross(face_n)*((i as i64)*2-1);
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let verts=mesh.edge_verts(edge_id);
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let d=n.dot(mesh.vert(verts[0]))+n.dot(mesh.vert(verts[1]));
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let d=n.dot(mesh.vert(edge_verts[0]))+n.dot(mesh.vert(edge_verts[1]));
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//WARNING yada yada d *2
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for t in zeroes2((n.dot(body.position))*2-d,n.dot(body.velocity)*2,n.dot(body.acceleration)){
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let t=body.time+Time::from(t);
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