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-rw-r--r--host/simu/model/distance_sensor.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/host/simu/model/distance_sensor.py b/host/simu/model/distance_sensor.py
index 0fa34d15..3dc83f45 100644
--- a/host/simu/model/distance_sensor.py
+++ b/host/simu/model/distance_sensor.py
@@ -43,6 +43,9 @@ class DistanceSensor:
pos, target = self.pos, self.target
m = TransMatrix ()
for i in self.into:
+ if i.pos is None:
+ self.distance = None
+ return
m.rotate (i.angle)
m.translate (i.pos)
pos, target = m.apply (pos, target)