#-------------------------------------------------------------------------------
#  TurtleFunction2.py
#-------------------------------------------------------------------------------

import turtle

def draw_multicolor_square(t, sz):
    """Make turtle t draw a multi-color square of size sz."""
    for i in ["red", "purple", "hotpink", "blue"]:
        t.color(i)
        t.forward(sz)
        t.left(90)
    # end for
# end of draw_multicolor_square()


#-- main program --------------------------------------------------------------
wn = turtle.Screen()        # Set up the window and its attributes
wn.bgcolor("lightgreen")

tess = turtle.Turtle()      # Create tess and set some attributes
tess.pensize(3)
# tess.speed(0)               # uncomment and try different speeds in range 0-10

size = 20                   # Size of the smallest square
for i in range(20):
    draw_multicolor_square(tess, size)
    size += 10              # Increase the size for next time
    tess.forward(10)        # Move tess along a little
    tess.right(18)          #    and give her some extra turn

wn.mainloop()