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path: root/host/simu/model/round_obstacle.py
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-rw-r--r--host/simu/model/round_obstacle.py6
1 files changed, 5 insertions, 1 deletions
 diff --git a/host/simu/model/round_obstacle.py b/host/simu/model/round_obstacle.pyindex fc0cfc6a..6658ed19 100644--- a/host/simu/model/round_obstacle.py+++ b/host/simu/model/round_obstacle.py@@ -23,10 +23,12 @@ # }}} """Obstacle with a round shape.""" from math import pi, cos, sin, sqrt+from utils.observable import Observable -class RoundObstacle:+class RoundObstacle (Observable): def __init__ (self, radius, level = 0):+ Observable.__init__ (self) self.pos = None self.radius = radius self.level = level@@ -34,6 +36,8 @@ class RoundObstacle: def intersect (self, a, b): """If the segment [AB] intersects the obstacle, return distance from a to intersection point, else, return None."""+ if self.pos is None:+ return None ab = sqrt ((b[0] - a[0]) ** 2 + (b[1] - a[1]) ** 2) # distance AB. n = ((b[0] - a[0]) / ab, (b[1] - a[1]) / ab) # vector of length 1. o = self.pos # obstacle center.