coders strike back v1.py 文件源码

def path_to_stop(vx, vy):
    #print >> sys.stderr, "Current VX: " + str(vx)
    #print >> sys.std   err, "Current VY: " + str(vy)

    vr = math.sqrt(abs(vx * vx) + abs(vy * vy)  + 2 * abs(vx) * abs(vy))
    #print >> sys.stderr, "Current VR: " + str(vr)

    path = 0
    while vr > MINIMUM_SPEED_FOR_BRAKE_PATH:
        path = path + vr
        vr = vr * SPEED_DECREASE
    return round(path)            
#no