def __init__(self, width, height, debug=False, debug_delay=-1):
self.pointer = Pointer()
self._list = [[[0] * width for i in range(height)] for j in range(3)]
self.width = width
self.height = height
self.debug = debug
self.debug_delay = debug_delay
self.debugstream = StringIO()
def __init__(self, width, height, debug=False, debug_delay=-1):
self.pointer = Pointer()
self._list = []
# Fill board with whitespace
for y in range(height):
self._list.append([' '] * width)
self.width = width
self.height = height
self.debug = debug
self.debug_delay = debug_delay
self.debugstream = StringIO()
def step(self):
if self.debug:
# Redirect output for debugging
sys.stdout = self.debugstream
for pointer in [
p for p in self.pointers if not (p.dx == 0 and p.dy == 0)
]:
c = self.get(pointer.x, pointer.y)
if c == '"':
pointer.stringmode = not pointer.stringmode
elif pointer.stringmode:
pointer.stack.push(ord(c))
elif c in "0123456789":
pointer.stack.push(int(c))
elif c == '>':
pointer.dx = 1
pointer.dy = 0
elif c == '<':
pointer.dx = -1
pointer.dy = 0
elif c == '^':
pointer.dx = 0
pointer.dy = -1
elif c == 'v':
pointer.dx = 0
pointer.dy = 1
elif c == '?':
dir = ['>', 'v', '<', '^'][random.randint(0, 3)]
if dir == '>':
pointer.dx = 1
pointer.dy = 0
elif dir == '<':
pointer.dx = -1
pointer.dy = 0
elif dir == '^':
pointer.dx = 0
pointer.dy = -1
elif dir == 'v':
pointer.dx = 0
pointer.dy = 1
elif c == '+':
pointer.stack.push(pointer.stack.pop() + pointer.stack.pop())
elif c == '*':
pointer.stack.push(pointer.stack.pop() * pointer.stack.pop())
elif c == '-':
a = pointer.stack.pop()
b = pointer.stack.pop()
pointer.stack.push(b - a)
elif c == '/':
a = pointer.stack.pop()
b = pointer.stack.pop()
pointer.stack.push(b / a)
elif c == '%':
a = pointer.stack.pop()
b = pointer.stack.pop()
pointer.stack.push(b % a)
elif c == '!':
x = pointer.stack.pop()
if x == 0:
pointer.stack.push(1)
else:
pointer.stack.push(0)
elif c == '`':
a = pointer.stack.pop()
b = pointer.stack.pop()
if b > a:
pointer.stack.push(1)
else:
pointer.stack.push(0)
elif c == '_':
x = pointer.stack.pop()
if x == 0:
pointer.dx = 1
pointer.dy = 0
else:
pointer.dx = -1
pointer.dy = 0
elif c == '|':
x = pointer.stack.pop()
if x == 0:
pointer.dx = 0
pointer.dy = 1
else:
pointer.dx = 0
pointer.dy = -1
elif c == ':':
x = pointer.stack.pop()
pointer.stack.push(x)
pointer.stack.push(x)
elif c == '\\':
a = pointer.stack.pop()
b = pointer.stack.pop()
pointer.stack.push(a)
pointer.stack.push(b)
elif c == '$':
pointer.stack.pop()
elif c == '.':
x = pointer.stack.pop()
sys.stdout.write(str(x) + ' ')
elif c == ',':
x = pointer.stack.pop()
sys.stdout.write(chr(x))
elif c == '#':
pointer.move()
elif c == 'p':
y = pointer.stack.pop()
x = pointer.stack.pop()
v = pointer.stack.pop()
# Simulate unsigned 8-bit integer
# Also guarantees value is in ASCII range
while v > 255:
v = 255 - v
while v < 0:
v += 255
self.put(x, y, chr(v))
elif c == 'g':
y = pointer.stack.pop()
x = pointer.stack.pop()
pointer.stack.push(ord(self.get(x, y)))
elif c == '&':
x = raw_input()
try:
pointer.stack.push(int(x))
except ValueError:
pointer.stack.push(0)
elif c == '~':
x = sys.stdin.read(1)
pointer.stack.push(ord(x))
elif c == 't':
new = Pointer()
new.x = pointer.x
new.y = pointer.y
new.dx = pointer.dx * -1
new.dy = pointer.dy * -1
for x in pointer.stack._list:
new.stack._list.append(x)
new.move()
self.pointers.append(new)
elif c == '@':
pointer.dx = 0
pointer.dy = 0
# Advance pointer
pointer.move()
# Wrap-around
if pointer.x >= self.width:
pointer.x -= self.width
elif pointer.x <= -1:
pointer.x += self.width
elif pointer.y >= self.height:
pointer.y -= self.height
elif pointer.y <= -1:
pointer.y += self.height
# Print debugging information
if self.debug:
# Reset debugging output redirection
sys.stdout = sys.__stdout__
# Clear screen
if os.name == "posix":
sys.stdout.write("\x1b[H\x1b[2J")
for i, pointer in zip(range(len(self.pointers)), self.pointers):
color = 31 + i % 6
if os.name == "posix":
sys.stdout.write("\033[%dm" % color)
print "Pointer %d: x=%d y=%d dx=%d dy=%d stringmode=%s" % (
i, pointer.x, pointer.y, pointer.dx, pointer.dy,
pointer.stringmode)
if os.name == "posix":
sys.stdout.write("\033[0m")
print "Board:"
for y in range(self.height):
for x in range(self.width):
c = self.get(x, y)
for i, pointer in zip(range(len(self.pointers)),
self.pointers):
if x == pointer.x and y == pointer.y:
if os.name == "posix":
color = 41 + i % 6
sys.stdout.write("\033[%dm" % color)
sys.stdout.write(c)
if os.name == "posix":
sys.stdout.write("\033[0m")
sys.stdout.write('\n')
#print self.pointer.stack._list
for i, pointer in zip(range(len(self.pointers)), self.pointers):
color = 31 + i % 6
if os.name == "posix":
sys.stdout.write("\033[%dm" % color)
print "Stack %d:" % i, pointer.stack._list
if os.name == "posix":
sys.stdout.write("\033[0m")
print "Output:"
self.debugstream.seek(0)
print self.debugstream.read()
if self.debug_delay == -1:
sys.stdin.read(1)
else:
time.sleep(self.debug_delay / 1000.0)
def __init__(self, width, height, debug=False, debug_delay=-1):
Befunge93Board.__init__(self, width, height, debug, debug_delay)
self.pointers = [Pointer()]
