'''
   cartester.py

   Jeff Ondich, 10 February 2010

   This program tests the Car class in car.py by generating
   some random Car objects and letting them drive away.
'''

import random
from car import *
from graphics import *

# Open a graphics window.
windowWidth = 600
windowHeight = 400
window = GraphWin('The open road', windowWidth, windowHeight)

# Generate a collection of Car objects with random properties.
carList = []
for k in range(5):
    y = random.randint(20, windowHeight - 20)
    width = random.randint(50, 200)
    x = random.randint(width + 1, windowWidth - width - 1)
    height = random.randint(30, 100)
    velocity = random.randint(-20, 20)
    color = color_rgb(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255))
    car = Car(x, y, width, height, color, velocity)
    car.draw(window)
    carList.append(car)

# Drive the cars until the user terminates the program.
print 'Hit Ctrl-C to quit'

while True:
    time.sleep(0.1)
    for car in carList:
        car.step()
        if car.x + car.width >= windowWidth:
            car.undraw()
            car.reverseDirection()
            car.draw(window)