# Helene Martin, Garfield High School
# So far, we have been using functions to create programs.
# This script introduces a new programming paradigm: object oriented programming.
# Objects are constructs that contain state and behavior: variables and methods.
# Turtle objects have methods very similar to the functions we used earlier.
# Play around until you are comfortable with this new way of programming!

from turtle import *
from random import *

# clears the screen
Screen().clear()

# Creates a new turtle instance called bob
bob = Turtle()
# Makes bob move forward 100 pixels
bob.forward(100)

# Creates a new turtle called janet shaped like a turtle
janet = Turtle(shape="turtle")
# Make Janet fat
janet.shapesize(4)
janet.up()
janet.goto(100,100)
# When the user clicks and drags janet, she follows the cursor
janet.ondrag(janet.goto)

turtle_list = []
for i in range(10):
    # add a turtle to the list
    turtle_list.append(Turtle('circle'))
    turtle_list[i].up()
    # make the turtle go somewhere random
    turtle_list[i].goto(randint(-200, 200), randint(-200, 200))
    # give the turtle a random color
    turtle_list[i].color(random(), random(), random())

# Do this forever
while(True):
    # For each turtle
    for t in turtle_list:
        if(janet.distance(t) < 20):
            t.stamp()
        # go to a random location
        t.goto(randint(-200, 200), randint(-200, 200))