pygame 贪吃蛇（逻辑类）

import random
x1=random.randint(0,10)
y1=random.randint(0,10)
p=(x1,y1)
class snake:
    body = [(0,0)]
    length = 1
    size = 10
    direction = 90
    def __init__(self):
        self.body=[(0,0)]
        self.length = len(self.body)
    def move(self,d):
        if d==90:
            x =self.body[0][0]+1
            y = self.body[0][1]
            self.body.insert(0,(x,y))
            self.body.pop()
            self.direction=90
            #del self.body[self.length-1]
        if d==180:
            x =self.body[0][0]
            y = self.body[0][1]+1
            self.body.insert(0,(x,y))
            self.direction=180
            self.body.pop()
        if d==-90:
            x =self.body[0][0]-1
            y = self.body[0][1]
            self.body.insert(0,(x,y))
            self.direction=-90
            self.body.pop()
        if d==0:
            x =self.body[0][0]
            y = self.body[0][1]-1
            self.body.insert(0,(x,y))
            self.direction=0
            self.body.pop()
    def eat(self):
        if self.direction==90:
            x =self.body[0][0]+1
            y = self.body[0][1]
            self.body.insert(0,(x,y))
            self.direction=90
            #del self.body[self.length-1]
        if self.direction==180:
            x =self.body[0][0]
            y = self.body[0][1]+1
            self.body.insert(0,(x,y))
            self.direction=180
        if self.direction==-90:
            x =self.body[0][0]-1
            y = self.body[0][1]
            self.body.insert(0,(x,y))
            self.direction=-90
        if self.direction==0:
            x =self.body[0][0]
            y = self.body[0][1]-1
            self.body.insert(0,(x,y))
            self.direction=0
    def show(self):
        print(self.body)
        return self.body
    def get_body(self):
        return self.body
    def panduan(self):
        o = self.body[0]
        hh = self.body[1:]
        if o in hh:
            self.body=[(0,0)]
s = snake()
s.show()
s.move(90)
s.show()
s.move(180)
s.show()
s.eat()
s.show()
s.move(0)
s.move(0)
s.panduan()
s.show()