猫史档案馆

from tkinter import *
import random
import time


class Ball:
    def __init__(self, canvas, color):
        self.canvas = canvas
        self.ide = canvas.create_oval(10, 10, 25, 25, fill=color)
        self.canvas.move(self.ide, 245, 100)
        starts = [-3, -2, -1, 1, 2, 3]
        random.shuffle(starts)
        self.x = starts[0]
        self.y = -2
        self.canvas_height = self.canvas.winfo_height()
        self.canvas_width = self.canvas.winfo_width()

    def draw(self):
        self.canvas.move(self.ide, self.x, self.y)
        pos = self.canvas.coords(self.ide)
        if pos[1] <= 0:
            self.y = 1
        if pos[3] >= self.canvas_height:
            self.y = -1
        if pos[0] <= 0:
            self.x = 2
        if pos[2] >= self.canvas_width:
            self.x = -2


class Papp:
    def __init__(self, canvas, color):
        self.canvas = canvas
        self.ide = canvas.create_rectangle(0, 0, 100, 10, fill=color)
        self.canvas.move(self.ide, 200, 300)
        self.x = 0
        self.canvas_width = self.canvas.winfo_width()
        self.canvas.bind_all('<KeyPress-Left>', self.left_p)
        self.canvas.bind_all('<KeyPress-Right>', self.right_p)

    def draw(self):
        self.canvas.move(self.ide, self.x, 0)
        pos = self.canvas.coords(self.ide)
        if pos[0] <= 0:
            self.x = 0
        elif pos[2] >= self.canvas_width:
            self.x = 0

    def left_p(self, evt):
        self.x = -2

    def right_p(self, evt):
        self.x = 2


root = Tk()
root.title("game")
root.resizable(0, 0)
root.wm_attributes("-topmost", 1)
canvas = Canvas(width=500, height=400, bd=0, highlightthickness=0)
canvas.pack()
canvas.update()

paddle = Papp(canvas, 'blue')
ball = Ball(canvas, 'red')

while 1:
    ball.draw()
    root.update_idletasks()
    root.update()
    time.sleep(0.01)