python弹球小游戏

from tkinter import * from random import * import time class Ball: def __init__(self, canvas, color, winW, winH, racket): self.canvas = canvas self.racket = racket self.id = canvas.create_oval(0, 0, 20, 20, fill=color) self.canvas.move(self.id, winW/2, winH/2) startPos = [-4, -3, -2, -1, 1, 2, 3, 4] shuffle(startPos) self.x = startPos[0] self.y = -step self.notTouchBottom= True def hitRacket(self, ballPos): racketPos = self.canvas.coords(self.racket.id) if ballPos[2] >= racketPos[0] and ballPos[0] <= racketPos[2]: if ballPos[3] >= racketPos[1] and ballPos[3] <= racketPos[3]: return True return False def ballMove(self): self.canvas.move(self.id, self.x, self.y) ballPos = self.canvas.coords(self.id) if ballPos[0] <= 0: self.x = step if ballPos[1] <= 0: self.y = step if ballPos[2] >= winW: self.x = -step if self.hitRacket(ballPos) == True: self.y = -step if ballPos[3] >= winH: self.notTouchBottom = False class Racket: def __init__(self, canvas, color): self.canvas = canvas self.id = canvas.create_rectangle(0, 0, 100, 15, fill=color) self.canvas.move(self.id, 270, 400) self.x = 0 self.canvas.bind_all('<KeyPress-Right>', self.moveRight) self.canvas.bind_all('<KeyPress-Left>', self.moveLeft) def racketMove(self): self.canvas.move(self.id, self.x, 0) racketPos = self.canvas.coords(self.id) if racketPos[0] <= 0: self.x = 0 elif racketPos[2] >= winW: self.x = 0 def moveLeft(self, event): self.x = -3 def moveRight(self, event): self.x = 3 winW = 640 winH = 480 step = 3 speed = 0.01 tk = Tk() tk.title("Bouncing Ball") tk.wm_attributes('-topmost', 1) canvas = Canvas(tk, width=winW, height=winH) canvas.pack() tk.update() racket = Racket(canvas, 'purple') ball = Ball(canvas, 'yellow', winW, winH, racket) while ball.notTouchBottom: try: ball.ballMove() except: print("单击关闭按钮终止程序执行") break racket.racketMove() tk.update() time.sleep(speed)