import server
mod = server.problems.load_language('robot', 'en')

id = 205
name = 'Circle 20 cm'
slug = 'Circle 20 cm'

description = '''\
<p>Write a program that will make the robot drive in circle (r=20cm) and stop after one loop.</p>'''

hint = {
   'mW_init':mod.hint['init'],
   'connectMotorLeft':mod.hint['connectMotorLeft'],
   'connectMotorRight':mod.hint['connectMotorRight'],
   'moveSteering':mod.hint['moveSteering'],
   'onForSeconds':mod.hint['onForSeconds'],
   'direction':mod.hint['direction']+['''<p>The value of this parameter should be such that would make the robot circle with radius 20cm. This value highly depends on the construction of the robot.</p>''',
                 '''<p><code>robot.move_steering( 'on_for_seconds', direction=20, ... )</code>.</p>'''],
   'seconds':mod.hint['seconds']+['''<p>Experimentally determine the time (in seconds) the robot needs for one loop.</p>''',
               '''<p><code>robot.move_steering( 'on_for_seconds', direction=0, seconds=3 )</code>.</p>'''],
}

plan = ['''\
<p>The program should:</p>
<ol>
  <li>create a mindstorms_widgets() object, which represents the robot in your code.</li>
  <li>connect the driving motors.</li>
  <li>calculate the turn so that the robot would drive in circle with radius 20 cm.</li>
  <li>synchronize the motors and run them for a specified time, so that the robot stops after one round.</li>
</ol>'''
]