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Revision 449aa86bd6a7d41f810dc85c86a7cfaf9c50bc9a authored by Stefan Krah on 03 June 2010, 12:39:50 UTC, committed by Stefan Krah on 03 June 2010, 12:39:50 UTC
the curses module must be linked against ncurses as well. Otherwise it is not safe to load both the readline and curses modules in an application. Thanks Thomas Dickey for answering questions about ncurses/ncursesw and readline!
1 parent 4da7d41
Tip revision: 449aa86bd6a7d41f810dc85c86a7cfaf9c50bc9a authored by Stefan Krah on 03 June 2010, 12:39:50 UTC
Issue #7384: If the system readline library is linked against ncurses,
Issue #7384: If the system readline library is linked against ncurses,
Tip revision: 449aa86
tdemo_nim.py
""" turtle-example-suite:
tdemo_nim.py
Play nim against the computer. The player
who takes the last stick is the winner.
Implements the model-view-controller
design pattern.
"""
import turtle
import random
import time
SCREENWIDTH = 640
SCREENHEIGHT = 480
MINSTICKS = 7
MAXSTICKS = 31
HUNIT = SCREENHEIGHT // 12
WUNIT = SCREENWIDTH // ((MAXSTICKS // 5) * 11 + (MAXSTICKS % 5) * 2)
SCOLOR = (63, 63, 31)
HCOLOR = (255, 204, 204)
COLOR = (204, 204, 255)
def randomrow():
return random.randint(MINSTICKS, MAXSTICKS)
def computerzug(state):
xored = state[0] ^ state[1] ^ state[2]
if xored == 0:
return randommove(state)
for z in range(3):
s = state[z] ^ xored
if s <= state[z]:
move = (z, s)
return move
def randommove(state):
m = max(state)
while True:
z = random.randint(0,2)
if state[z] > (m > 1):
break
rand = random.randint(m > 1, state[z]-1)
return z, rand
class NimModel(object):
def __init__(self, game):
self.game = game
def setup(self):
if self.game.state not in [Nim.CREATED, Nim.OVER]:
return
self.sticks = [randomrow(), randomrow(), randomrow()]
self.player = 0
self.winner = None
self.game.view.setup()
self.game.state = Nim.RUNNING
def move(self, row, col):
maxspalte = self.sticks[row]
self.sticks[row] = col
self.game.view.notify_move(row, col, maxspalte, self.player)
if self.game_over():
self.game.state = Nim.OVER
self.winner = self.player
self.game.view.notify_over()
elif self.player == 0:
self.player = 1
row, col = computerzug(self.sticks)
self.move(row, col)
self.player = 0
def game_over(self):
return self.sticks == [0, 0, 0]
def notify_move(self, row, col):
if self.sticks[row] <= col:
return
self.move(row, col)
class Stick(turtle.Turtle):
def __init__(self, row, col, game):
turtle.Turtle.__init__(self, visible=False)
self.row = row
self.col = col
self.game = game
x, y = self.coords(row, col)
self.shape("square")
self.shapesize(HUNIT/10.0, WUNIT/20.0)
self.speed(0)
self.pu()
self.goto(x,y)
self.color("white")
self.showturtle()
def coords(self, row, col):
packet, remainder = divmod(col, 5)
x = (3 + 11 * packet + 2 * remainder) * WUNIT
y = (2 + 3 * row) * HUNIT
return x - SCREENWIDTH // 2 + WUNIT // 2, SCREENHEIGHT // 2 - y - HUNIT // 2
def makemove(self, x, y):
if self.game.state != Nim.RUNNING:
return
self.game.controller.notify_move(self.row, self.col)
class NimView(object):
def __init__(self, game):
self.game = game
self.screen = game.screen
self.model = game.model
self.screen.colormode(255)
self.screen.tracer(False)
self.screen.bgcolor((240, 240, 255))
self.writer = turtle.Turtle(visible=False)
self.writer.pu()
self.writer.speed(0)
self.sticks = {}
for row in range(3):
for col in range(MAXSTICKS):
self.sticks[(row, col)] = Stick(row, col, game)
self.display("... a moment please ...")
self.screen.tracer(True)
def display(self, msg1, msg2=None):
self.screen.tracer(False)
self.writer.clear()
if msg2 is not None:
self.writer.goto(0, - SCREENHEIGHT // 2 + 48)
self.writer.pencolor("red")
self.writer.write(msg2, align="center", font=("Courier",18,"bold"))
self.writer.goto(0, - SCREENHEIGHT // 2 + 20)
self.writer.pencolor("black")
self.writer.write(msg1, align="center", font=("Courier",14,"bold"))
self.screen.tracer(True)
def setup(self):
self.screen.tracer(False)
for row in range(3):
for col in range(self.model.sticks[row]):
self.sticks[(row, col)].color(SCOLOR)
for row in range(3):
for col in range(self.model.sticks[row], MAXSTICKS):
self.sticks[(row, col)].color("white")
self.display("Your turn! Click leftmost stick to remove.")
self.screen.tracer(True)
def notify_move(self, row, col, maxspalte, player):
if player == 0:
farbe = HCOLOR
for s in range(col, maxspalte):
self.sticks[(row, s)].color(farbe)
else:
self.display(" ... thinking ... ")
time.sleep(0.5)
self.display(" ... thinking ... aaah ...")
farbe = COLOR
for s in range(maxspalte-1, col-1, -1):
time.sleep(0.2)
self.sticks[(row, s)].color(farbe)
self.display("Your turn! Click leftmost stick to remove.")
def notify_over(self):
if self.game.model.winner == 0:
msg2 = "Congrats. You're the winner!!!"
else:
msg2 = "Sorry, the computer is the winner."
self.display("To play again press space bar. To leave press ESC.", msg2)
def clear(self):
if self.game.state == Nim.OVER:
self.screen.clear()
class NimController(object):
def __init__(self, game):
self.game = game
self.sticks = game.view.sticks
self.BUSY = False
for stick in self.sticks.values():
stick.onclick(stick.makemove)
self.game.screen.onkey(self.game.model.setup, "space")
self.game.screen.onkey(self.game.view.clear, "Escape")
self.game.view.display("Press space bar to start game")
self.game.screen.listen()
def notify_move(self, row, col):
if self.BUSY:
return
self.BUSY = True
self.game.model.notify_move(row, col)
self.BUSY = False
class Nim(object):
CREATED = 0
RUNNING = 1
OVER = 2
def __init__(self, screen):
self.state = Nim.CREATED
self.screen = screen
self.model = NimModel(self)
self.view = NimView(self)
self.controller = NimController(self)
mainscreen = turtle.Screen()
mainscreen.mode("standard")
mainscreen.setup(SCREENWIDTH, SCREENHEIGHT)
def main():
nim = Nim(mainscreen)
return "EVENTLOOP!"
if __name__ == "__main__":
main()
turtle.mainloop()
![swh spinner](/static/img/swh-spinner.gif)
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