diff --git a/MOT Capture Process Simulation/@MOTSimulator/exitCondition.m b/MOT Capture Process Simulation/@MOTSimulator/exitCondition.m
new file mode 100644
index 0000000..de84d2f
--- /dev/null
+++ b/MOT Capture Process Simulation/@MOTSimulator/exitCondition.m	
@@ -0,0 +1,11 @@
+function ret = exitCondition(this, PositionVector, VelocityVector, CollisionEvent)
+    d = Helper.calculateDistanceFromPointToLine(PositionVector, [0 0 0], [0 1 0]);
+    y = PositionVector(2);
+    DivergenceAngle = (d/abs(y));
+    %DivergenceAngle   = atan(norm(cross(PositionVector, )) / norm(dot(PositionVector, [0 1 0])));
+    if (y >= 0) && (DivergenceAngle <= this.MOTExitDivergence) && (abs(VelocityVector(2))<=this.VelocityCutoff) && ~CollisionEvent
+        ret = true;
+    else
+        ret = false;
+    end
+end
\ No newline at end of file