import math


class Robot(object):
    WHEEL_CIRCUMFERENCE_MM = 71.0 * math.pi
    """Circumference of a wheel in millimeters"""

    TICKS_PER_TURN = 27.7 * 100.0
    """Ticks per 360 degree turn of a wheel"""

    ARBOR_LENGTH_MM = 139.0
    """Distance between the two wheels in millimeters"""

    ARBOR_LENGTH_M = ARBOR_LENGTH_MM / 1000.0
    """Distance between the two wheels in meters"""

    TICKS_PER_METER = 1000.0 / WHEEL_CIRCUMFERENCE_MM * TICKS_PER_TURN
    """Ticks after driving one meter"""

    LEFT_PORT = 4
    """Motor port for the left motor"""

    RIGHT_PORT = 1
    """Motor port for the right motor"""