class TripleDoohickey(object):
def __init__(self):
self.first = Doohickey()
self.second = Doohickey()
self.third = Doohickey()
self.a()
def a(self):
"""Returns 'aba' and sets the Doohickies to a, b, and a.
>>> doo = TripleDoohickey()
>>> doo.a()
'aba'
"""
result = ''
result += self.first.a()
result += self.second.b()
result += self.third.a()
return result
def b(self):
"""Returns 'bab' and sets the Doohickies to b, a and b.
>>> doo = TripleDoohickey()
>>> doo.b()
'bab'
"""
result = ''
result += self.first.b()
result += self.second.a()
result += self.third.b()
return result
def other(self):
"""Returns the opposite of the last time, or 'bab' at first.
>>> doo = TripleDoohickey()
>>> doo.other()
'bab'
>>> doo.other()
'aba'
>>> doo.a()
'aba'
>>> doo.other()
'bab'
>>> doo.b()
'bab'
>>> doo.other()
'aba'
>>> doo.other()
'bab'
>>> doo.other()
'aba'
"""
result = ''
result += self.first.other()
result += self.second.other()
result += self.third.other()
return result
class Fnooblatz1000(object):
def __init__(self):
self.reset_everything()
def printable_display(self):
printable = '\n'
for row in self.display:
for column in row:
printable += column
printable += '\n'
return printable
def print_curses(self,stdscr):
for y in range(len(self.display)):
for x in range(len(self.display[y])):
stdscr.addch(y,x,ord(self.display[y][x]))
stdscr.refresh()
def set_width(self,width):
if width < 1:
return False
while len(self.display[0]) > width:
self.press_button(3)
while len(self.display[0]) < width:
self.press_button(1)
assert(len(self.display[0]) == width)
return True
def set_height(self,height):
if height < 1:
return False
while len(self.display) > height:
self.press_button(4)
while len(self.display) < height:
self.press_button(2)
assert(len(self.display) == height)
return True
def reset_everything(self):
empty_row = collections.deque()
empty_row.append('*')
self.display = collections.deque()
self.display.append(empty_row)
self.buttons_pressed = collections.deque()
self.cursor_stack = collections.deque()
self.background_instructions = collections.deque()
self.background_current_instruction = -1 # So it starts at zero.
self.background_processing_on = False
self.alternator = True
self.cursor_row = 0
self.cursor_column = 0
self.rotation_direction = 1
self.doohickey = Doohickey()
self.remembered_character = ' '
def check_cursor_bounds(self):
if self.cursor_row < 0:
self.cursor_row = 0
if self.cursor_column < 0:
self.cursor_column = 0
while self.cursor_row >= len(self.display):
self.cursor_row -= 1
while self.cursor_column >= len(self.display[0]):
self.cursor_column -= 1
def execute_sequence(self,sequence):
for instruction in sequence:
self.press_button(instruction)
def execute_background_instruction(self):
if len(self.background_instructions) < 1:
return # If there are no instructions, there's nothing to do.
self.background_current_instruction += 1
if self.background_current_instruction >= len(self.background_instructions):
self.background_current_instruction = 0
instruction = \
self.background_instructions[self.background_current_instruction]
self.execute_single_instruction(instruction)
def press_button(self,button_number):
self.buttons_pressed.append(button_number)
if len(self.buttons_pressed) > 1024:
self.buttons_pressed.popleft()
if self.alternator:
self.alternator = False
else:
self.alternator = True
# The alternator, as you can see, alternates
# BEFORE each instruction is executed. Confusing
# but true!
self.execute_single_instruction(button_number)
if self.background_processing_on:
self.execute_background_instruction()
def execute_single_instruction(self,button_number):
if button_number == 0:
self.reset_everything()
return
# Resets everything.
#
# This functionality was desperately necessary
# of course on actual Fnooblatz 1000s, which if
# given difficult computations would overheat and
# smoke furiously. I don't think there's an FB1000
# would have made it through the first night without
# this button. Hopefully on this simulator it
# should be necessary slightly less desperately,
# but it's still useful for getting out of any of
# the confusing internal states a Fnooblatz is
# prone to!
if button_number == 1:
for row in self.display:
row.append('*')
return
if button_number == 2:
new_row = collections.deque()
for column in self.display[0]:
new_row.append('*')
self.display.append(new_row)
return
# The above commands to expand the Fnooblatz screen
# are necessary because the display starts 1 pixel by
# 1 pixel. But why does it? Well, besides the fact
# that in the old days people would run their Fnooblatz
# at as small a resolution as they actually needed, to
# conserve energy, or that a cheap one-pixel display
# would often be used to diagnose what's wrong with a
# sick Fnooblatz (so it couldn't burn out a whole
# expensive display), there's also the case of those
# folks who would insist that they just didn't need
# more than a one-pixel display to get by. And it's
# true, you can read the news quite adequately one
# character at a time, if you're patient.
if button_number == 3:
if len(self.display[0]) > 1:
for row in self.display:
row.pop()
self.check_cursor_bounds()
return
if button_number == 4:
if len(self.display) > 1:
self.display.pop()
self.check_cursor_bounds()
return
# If you can make the display bigger, it's convenient
# to be able to make it smaller too, instead of just
# having to start all over!
if button_number == 5:
for row in self.display:
row.rotate(self.rotation_direction)
return
if button_number == 6:
self.display.rotate(self.rotation_direction)
return
# Rotating the display, which gives us just barely
# enough instructions to paint pictures! :D
if button_number == 7:
return
# Button seven doesn't do anything, 'anything' that is
# except for all the stuff the Fnooblatz does every
# instruction (alternate the alternator, etc.)-- but,
# like, nothing EXTRA.
if button_number == 8:
self.check_cursor_bounds()
if self.alternator:
self.display[self.cursor_row][self.cursor_column] = '|'
else:
self.display[self.cursor_row][self.cursor_column] = '-'
return
# This allows you to see the behavior of the alternator,
# and combined with the following instructions to move the
# cursor can be useful for drawing.
if button_number == 9:
if self.alternator:
self.cursor_row += 1
else:
self.cursor_row -= 1
self.check_cursor_bounds()
return
# The previous instruction allows you to go either up OR down!
if button_number == 10:
if self.alternator:
self.cursor_column += 1
else:
self.cursor_column -= 1
self.check_cursor_bounds()
return
# The previous instruction allows you to go either left OR right!
if button_number == 11:
self.check_cursor_bounds()
self.display[self.cursor_row][self.cursor_column] = ' '
return
# Spaces. Ah. Relaxing.
if button_number == 12:
self.display[self.cursor_row][self.cursor_column] = self.doohickey.other()
return
# The Fnooblatz1000 contains a simple interface
# to access its contained Doohickey! This presses
# the 'other' button on the Doohickey and prints
# the result.
if button_number == 13:
self.display[self.cursor_row][self.cursor_column] = self.doohickey.a()
return
if button_number == 14:
self.display[self.cursor_row][self.cursor_column] = self.doohickey.b()
return
# With these you can use the Doohickey to write 'a' and
# 'b', which is useful for talking about ABBA!
if button_number == 15:
self.buttons_pressed.pop() # Otherwise it gets weird.
self.background_instructions = self.buttons_pressed
self.background_current_instruction = -1 # So we start at zero.
self.buttons_pressed = collections.deque()
return
# Moves what you've done recently to the background,
# where it will continue to happen as you go on doing
# other things. Fun!
if button_number == 16:
self.buttons_pressed.pop() # Otherwise it gets weird.
if self.background_processing_on:
self.background_processing_on = False
else:
self.background_processing_on = True
return
# Toggles background processing. If it's turned
# on it will start quite immediately, before the
# next instruction.
if button_number == 17:
self.cursor_row = 0
self.cursor_column = 0
return
# An orderly instruction for finding one's place.
if button_number == 18:
self.check_cursor_bounds()
if self.display[self.cursor_row][self.cursor_column] != '|':
self.cursor_column -= 1
self.check_cursor_bounds()
return
if button_number == 19:
self.check_cursor_bounds()
if self.display[self.cursor_row][self.cursor_column] != '|':
self.cursor_column += 1
self.check_cursor_bounds()
return
if button_number == 20:
self.check_cursor_bounds()
if self.display[self.cursor_row][self.cursor_column] != '-':
self.cursor_row -= 1
self.check_cursor_bounds()
return
if button_number == 21:
self.check_cursor_bounds()
if self.display[self.cursor_row][self.cursor_column] != '-':
self.cursor_row += 1
self.check_cursor_bounds()
return
# The above instructions allow you to travel easily in
# all four directions, while also allowing you to safely
# contain yourself in a box-- or a maze perhaps!
if button_number == 22:
if self.rotation_direction == 1:
self.rotation_direction = -1
else:
self.rotation_direction = 1
return
# Allows you to switch to rotating the display in the
# opposite direction. This might make you less dizzy.
if button_number == 23:
self.check_cursor_bounds()
self.remembered_character = self.display[self.cursor_row][self.cursor_column]
return
if button_number == 24:
self.check_cursor_bounds()
self.display[self.cursor_row][self.cursor_column] = self.remembered_character
return
# Allows you to remember a character for a little
# while. Useful for smearing things around!
if button_number == 25:
self.check_cursor_bounds()
self.display[self.cursor_row][self.cursor_column] = \
alphabetrotator.rotate(self.display[self.cursor_row][self.cursor_column])
return
# Combined with the Doohickey, which prints out
# 'a's and 'b's, this allows you to write any
# letter of the alphabet!
if button_number == 26:
self.check_cursor_bounds()
if self.display[self.cursor_row][self.cursor_column] == ' ':
return # Do nothing to blank spaces.
self.display[self.cursor_row][self.cursor_column] = 'g'
return
# This is useful for GIG.
if button_number == 27:
self.cursor_stack.append((self.cursor_row, self.cursor_column))
if len(self.cursor_stack) > 1024:
self.cursor_stack.popleft()
return
if button_number == 28:
if len(self.cursor_stack) > 0:
(self.cursor_row, self.cursor_column) = self.cursor_stack.pop()
return
# Whereever you go, there you are, but it's also nice
# to remember where else you've been recently.
self.display[0][0] = '@'