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Python实现的弹球小游戏示例

2020-11-29 00:36peerlessbloom Python

这篇文章主要介绍了Python实现的弹球小游戏,可实现类似乒乓球游戏的键盘控制底部挡板移动碰撞小球的游戏功能,需要的朋友可以参考下

本文实例讲述了Python实现的弹球小游戏。分享给大家供大家参考,具体如下:

弹球

1. Ball 类

draw负责移动Ball
碰撞检测,反弹,Ball检测Paddle

2.Paddle类

draw负责移动Paddle
碰撞检测,确定能不能继续
监听键盘事件

3.主循环

绘制Ball和Paddle
update
sleep

代码

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from Tkinter import *
import random
import time
class Ball:
  def __init__(self, canvas, paddle, color):
    self.canvas = canvas
    self.paddle = paddle
    self.id = canvas.create_oval(10, 10, 25, 25, fill=color)
    self.canvas.move(self.id, 245, 100)
    startx = [-3, -2, -1, 1, 2, 3]
    random.shuffle(startx)
    self.x = startx[0]
    self.y = -3
    self.canvas_height = self.canvas.winfo_height()
    self.canvas_width = self.canvas.winfo_width()
    self.hit_bottom = False
  def draw(self):
    self.canvas.move(self.id, self.x, self.y)
    pos = self.canvas.coords(self.id)#top-left bottom-right
    if (pos[1] <= 0 or self.hit_paddle(pos) == True):
      self.y = -self.y
    if (pos[0] <= 0 or pos[2] >= self.canvas_width):
      self.x = -self.x
    if (pos[3] >= self.canvas_height):
      self.hit_bottom = True
  def hit_paddle(self, pos):
    paddle_pos = self.canvas.coords(self.paddle.id)
    if (pos[2] >= paddle_pos[0] and pos[0] <= paddle_pos[2]):
      if (pos[3] >= paddle_pos[1] and pos[3] <= paddle_pos[3]):
        return True
    return False
class Paddle:
  def __init__(self, canvas, color):
    self.canvas = canvas
    self.id = canvas.create_rectangle(0, 0, 100, 10, fill = color)
    self.x = 0
    self.canvas.move(self.id, 200, 300)
    self.canvas_width = self.canvas.winfo_width()
    self.canvas.bind_all("<Key-Left>", self.turn_left)
    self.canvas.bind_all("<Key-Right>", self.turn_right)
  def draw(self):
    pos = self.canvas.coords(self.id)
    if (pos[0] + self.x >= 0 and pos[2] + self.x <= self.canvas_width):
      self.canvas.move(self.id, self.x, 0)
    #self.x = 0
  def turn_left(self, event):
    self.x = -4
  def turn_right(self, event):
    self.x = 4
tk = Tk()
tk.title("Game")
tk.resizable(0, 0)#not resizable
tk.wm_attributes("-topmost", 1)#at top
canvas = Canvas(tk, width = 500, height = 500, bd = 0, highlightthickness = 0)
canvas.pack()
tk.update()#init
paddle = Paddle(canvas, 'blue')
ball = Ball(canvas, paddle, 'red')
while 1:
  if (ball.hit_bottom == False):
    ball.draw()
    paddle.draw()
  tk.update_idletasks()
  tk.update()
  time.sleep(0.01)

运行效果如下图:

Python实现的弹球小游戏示例

希望本文所述对大家Python程序设计有所帮助。

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