diff --git a/src/lib.rs b/src/lib.rs
index 71167d0..2c50169 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -115,8 +115,15 @@ impl Ship {
         self.com_rotor = pos;
         self.vel = vel_2;
         if self.intersects_circle(boundary) {
-            self.com_rotor = 0.99*old;
-            //self.vel = CGA::zero();
+            let pos = self.fixed_to_world(&gen_hyperbolic_point(&CGA::zero()));
+            let x = pos[E1];
+            let y = pos[E2];
+            let r_sqr = x*x+y*y;
+            let r = r_sqr.sqrt();
+            let clamp = x/r *CGA::e15() + y/r*CGA::e25();
+            let rotor = bivector_exponential(&(clamp*0.01));
+            self.com_rotor = rotor * old;
+            self.vel = CGA::zero();
         }
     }