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* The SonarSensor shoots cones, not just rays. When a sonar sensor slowly turns around an object
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* it will probably see the object at all times, except in the case a reflection is occasionally
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* missed or reflected into another direction altogether. In the case of rays, an object will be
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* visible and hidden depending on a ray intersecting with it or not. This is a type of noise that
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* does not exist in the real sonar sensor. Hence, implementing a sonarSensor using just rays does