Python-сообщество

# -*- coding: cp1251 -*-
import pygame, time
from math import sin , cos, radians, pi
import sys
import math
class turtle:
    def __init__ (self, size=(1024, 768), ugal=0.0, x=None, y=None):
        pygame.init()
        self.pi = 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899
        self.screen = pygame.display.set_mode(size)
        self.color_black = (1, 1, 1)
        self.color_white = (255, 255, 255)
        self.screen.fill(self.color_white)
        self.ugal = ugal+90
        self.clock = pygame.time.Clock()
        if x is None and y is None:
            self.x = size[0]/2
            self.y = size[1]/2
            self.xnach = size[0]/2
            self.ynach = size[1]/2
        else:
            self.x = x
            self.y = y
        self.risovati = True
        self.pen_size = 1
        
    def fd(self, naslokika_proiti):
        # Пройди вперёд на n
        self.ugal = self.ugal % 360
        x = sin(self.ugal * pi / 180.0)*naslokika_proiti
        y = cos(self.ugal * pi / 180.0)*naslokika_proiti
        if self.risovati:
            pygame.draw.line(self.screen, self.color_black, (self.x, self.y),(x + self.x, y + self.y), self.pen_size)
        self.x = x + self.x
        self.y = y + self.y

    def bk(self, naslokika_otoiti):
        #Пройди назад на n
        self.ugal = self.ugal % 360
        x = sin(self.ugal * pi / 180.0)*naslokika_otoiti
        y = cos(self.ugal * pi / 180.0)*naslokika_otoiti
        if self.risovati:
            pygame.draw.line(self.screen, self.color_black, (self.x, self.y),(self.x - x , self.y -y), self.pen_size)
        self.x = self.x - x 
        self.y = self.y - y
                    
    def left(self, ugal):
        # поверни налево n
        self.ugal +=  ugal
        
            
    def right(self, ugal):
        # поверни направо n
        self.ugal -= ugal
            
            
    def up(self, a = 0):
        #  Поднять перо
        self.risovati = False

    def down (self, a = 0):
        self.risovati = True
        # Опустить перо
        
    def goto(self, x, y):
        # Переместить черепашку в точку с координатами
        if self.risovati:
            pygame.draw.aaline(self.screen, self.color_black, (self.x, self.y),(x, y), self.pen_size)
        self.x = x
        self.y = y
    
    def seth(self, ugal):
        self.ugal = ugal+90

    def circle(self, radius):
        if self.risovati:
            pygame.draw.circle(self.screen, self.color_black, (self.x, self.y), radius, self.pen_size)

    def pensize(self, size):
        self.pen_size = size

    def color(self, color):
        self.color_black = color

    def clear(self):
        self.screen.fill(self.color_white)
        self.event = pygame.event.poll()
        if self.event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    def update(self):
        pygame.display.update()

    lt = left
    rt = right
    
a = turtle()
d = 0
def kvadrat(razmer, d):
    a.up()
    a.goto(500, 400)
    a.down()
    a.seth(d)
    for i in xrange(4):
        a.lt(90)
        for i in xrange(3):
            a.fd(razmer)
            a.lt(120)

def limuliruiu():
    global d
    while True:
        a.clock.tick(6000)
        a.clear()
        #a.color((255, 200, 0))
        kvadrat(300, d)
        d += 0.1
        a.update()

    
limuliruiu()