27 lines
608 B
Python
27 lines
608 B
Python
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# -*- coding: utf-8 -*-
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"""
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Created on Sun May 11 13:21:39 2014
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@author: rlabbe
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"""
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from __future__ import print_function, division
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import numpy.random as random
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import math
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class DogSensor(object):
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def __init__(self, x0=0, velocity=1, noise=0.0):
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""" x0 - initial position
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velocity - (+=right, -=left)
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noise - scaling factor for noise, 0== no noise
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"""
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self.x = x0
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self.velocity = velocity
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self.noise = math.sqrt(noise)
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def sense(self):
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self.x = self.x + self.velocity
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return self.x + random.randn() * self.noise
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