# function to setup a standard set of bowling pins
# preconditions: at origin with 10 beepers in bag
# postconditions: at (6,6, South) with all pins deployed
def setUpPins():
    moveToStart()
    for i in range(4):
        layRow(i)
    moveOutOfTheWay()
    
    
# function to move Karel from origin to right edge of row 1
# preconditions: At (1,1,East) w/10 beepers in bag
# postconditions: At (6,2,North): right edge of row 1
def moveToStart():
    for i in range(5):
        move()
    turn_left()
    move()
    
# function to move to ending location after all pins set up
# preconditions: At right edge of imaginary row 5
# postconditions:  at (6,6, South) with all pins deployed
def moveOutOfTheWay():
    turn_left()
    for i in range(4):
        move()
    turn_left()
    
    
# function to lay a  row of pins
# preconditions: At right edge of row to lay facing north
# postconditions: At right edge of row i+1 facing north
def layRow(cnt):
    turn_left()
    for i in range(cnt+1):
        put_beeper()
        move()
        move()
    turn_around()
    for i in range((2*(cnt+1))+1):
        move()
    turn_left()
    move()


#utility functions
def turn_around():
    turn_left()
    turn_left()
        
def turn_right():
    for i in range(3):
        turn_left()
        
        
        
        
# program to set up bowling pins
set_trace_style(colour='white')
setUpPins()
turn_off()