"""File:     draw_taxi.py
   Purpose:  Use TurtleWorld to draw a random walk in which the turtle
             always moves either vertically or horizontally

   Run:      python draw_taxi.py

   Input:    Delay between moves and total number of moves
   Output:   Path followed by turtle
"""

from TurtleWorld import *
from random import randint

def move(t, nx, ny):
   """Move turtle t to position nx, ny
      Preconditions:  
         -200 <= nx, ny <= 200
         turtle is headed east
      Postconditions:
         turtle will be in position nx, ny
         turtle will be headed east
   """
   dist_x = nx - t.x
   dist_y = ny - t.y
   fd(t, dist_x)
   lt(t)
   fd(t, dist_y)
   rt(t)

world = TurtleWorld()
sally = Turtle()

sally.delay = float(raw_input("How long should each move take?\n   "))
total_moves = int(raw_input("How many moves should the turtle make?\n   "))

for i in range(total_moves):
   new_x = randint(-200, 200)
   new_y = randint(-200, 200)
#  new_x = int(raw_input("New x-coordinate?\n   "))
#  new_y = int(raw_input("New y-coordinate?\n   "))
   move(sally, new_x, new_y)
move(sally, 0, 0)

wait_for_user()