# this function gets called when the user presses a key.
# the following try statement is a hack; don't emulate this.
try:
# figure out which function to call, and call it
func = eval('draw_' + event.char)
except NameError:
print "I don't know how to draw an", event.char
return
except SyntaxError:
# this happens when the user presses return
teleport(bob, -180, bob.y - size * 3)
return
func(bob, size)
skip(bob, size / 2)
from TurtleWorld import *
world = TurtleWorld()
# create and position the turtle
size = 20
bob = Turtle(world)
bob.delay = 0.01
teleport(bob, -180, 150)
# tell world to call keypress when the user presses a key
world.bind('<Key>', keypress)
world.mainloop()
def keypress(event):
# this function gets called when the user presses a key.
# the following try statement is a hack; don't emulate this.
try:
# figure out which function to call, and call it
func = eval('draw_' + event.char)
except NameError:
print "I don't know how to draw an", event.char
return
except SyntaxError:
# this happens when the user presses return
teleport(bob, -180, bob.y-size*3)
return
func(bob, size)
skip(bob, size/2)
from TurtleWorld import *
world = TurtleWorld()
# create and position the turtle
size = 20
bob = Turtle(world)
bob.delay = 0.01
teleport(bob, -180, 150)
# tell world to call keypress when the user presses a key
world.bind('<Key>', keypress)
world.mainloop()
