画布小游戏库
来自Tkinter import *
随机导入
蛇类(框架):
def __init__(self，master=None):
框架。__init__(自身，主)
self.body = [(0，0)]
self.bodyid = []
self.food = [ -1，-1 ]
self.foodid = -1
self.gridcount = 10
self.size = 500
self.di = 3
自身速度= 500
self.top = self.winfo_toplevel()
self.top.resizable(False，False)
self.grid()
self.canvas = Canvas(self)
self.canvas.grid()
self . canvas . config(width = self . size，height=self.size，relief=RIDGE)
self.drawgrid()
s = self.size/self.gridcount
id = self . canvas . create _ rectangle(self . body[0][0]* s，self.body[0][1]*s，
(self.body[0][0]+1)*s，(self . body[0][1]+1)* s，fill="yellow ")
self.bodyid.insert(0，id)
self . bind _ all(" & lt；KeyRelease >，self.keyrelease)
self.drawfood()
self.after(self.speed，self.drawsnake)
定义绘图网格(自身):
s = self.size/self.gridcount
对于范围内的I(0，self.gridcount+1):
self.canvas.create_line(i*s，0，i*s，self.size)
self.canvas.create_line(0，i*s，self.size，i*s)
def drawsnake(自身):
s = self.size/self.gridcount
head = self.body[0]
new = [head[0]，head[1]]
如果self.di == 1:
new[1]=(head[1]-1)% self . grid count
elif self.di == 2:
new[0]=(head[0]+1)% self . grid count
elif self.di == 3:
new[1]=(head[1]+1)% self . grid count
否则:
new[0]=(head[0]-1)% self . grid count
next = ( new[0]，new[1])
如果在self.body中下一个:
退出()
elif next == (self.food[0]，self.food[1]):
self.body.insert(0，下一个)
self.bodyid.insert(0，self.foodid)
self.drawfood()
否则:
tail = self.body.pop()
id = self.bodyid.pop()
self.canvas.move(id，(next[0]-tail[0])*s，(next[1]-tail[1])*s)
self.body.insert(0，下一个)
self.bodyid.insert(0，id)
self.after(self.speed，self.drawsnake)
def drawfood(自身):
s = self.size/self.gridcount
x = random.randrange(0，self.gridcount)
y = random.randrange(0，self.gridcount)
while (x，y) in self.body:
x = random.randrange(0，self.gridcount)
y = random.randrange(0，self.gridcount)
id = self . canvas . create _ rectangle(x * s，y*s，(x+1)*s，(y+1)*s，fill="yellow ")
self.food[0] = x
self.food[1] = y
self.foodid = id
def按键释放(自身，事件):
if event.keysym == "Up "和self.di！= 3:
self.di = 1
elif event.keysym == "Right "和self.di！=4:
self.di = 2
elif event.keysym == "Down "和self.di！= 1:
self.di = 3
elif event.keysym == "Left "和self.di！= 2:
self.di = 4
app = snake()
app.master.title("贪婪的蛇")
App.mainloop()蛇