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#!/usr/bin/python
# coding=utf-8
print """
Naloga 10:
Robot naj se pelje naravnost, pravokotno na crte in naj jih presteje.
"""
import time
from ev3dev import *
from mindstorms_widgets import mindstorms_widgets
color_table = ['none', 'black', 'blue', 'green', 'yellow', 'red', 'white', 'brown']
cs = color_sensor()
assert cs.connected
cs.mode = 'COL-COLOR' # values: 0-7 see the scale above
robot = mindstorms_widgets()
robot.connect_motor( 'left' )
robot.connect_motor( 'right' )
power = 30
robot.move_tank( 'on', lr_power=[power,power])
start = time.time()
stevec = 0
color = -1
while time.time()-start < 2.1:
c = cs.value()
if c!=color:
print c, color_table[c]
if c!=6 and c!=0:
stevec += 1
color = c
robot.move_tank( 'off', brake_at_end=True )
print "Stevilo crt:", stevec
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