极客教程使用Python Turtle创建乒乓游戏
乒乓是最著名的街机游戏之一，模拟乒乓球。每个玩家在游戏中控制一个球拍，在屏幕的左边或右边垂直拖动。玩家使用他们的球拍来回击球。
Turtle是Python中一个内置的图形模块。它使用一个面板和笔来描绘插图。
以下是实现步骤：
- 步骤1）在屏幕的左边和右边创建两个桨叶A和B。
- 第2步）创建一个球。
- 第3步）创建一个事件，在按下某个键的时候垂直移动桨叶。
- 第4步）创建一个函数，在每个球员错过碰撞后更新分数。
以下是创建Paddle and Ball的程序：
# Import required library
import turtle
# Create screen
sc = turtle.Screen()
sc.title("Pong game")
sc.bgcolor("white")
sc.setup(width=1000, height=600)
# Left paddle
left_pad = turtle.Turtle()
left_pad.speed(0)
left_pad.shape("square")
left_pad.color("black")
left_pad.shapesize(stretch_wid=6, stretch_len=2)
left_pad.penup()
left_pad.goto(-400, 0)
# Right paddle
right_pad = turtle.Turtle()
right_pad.speed(0)
right_pad.shape("square")
right_pad.color("black")
right_pad.shapesize(stretch_wid=6, stretch_len=2)
right_pad.penup()
right_pad.goto(400, 0)
# Ball of circle shape
hit_ball = turtle.Turtle()
hit_ball.speed(40)
hit_ball.shape("circle")
hit_ball.color("blue")
hit_ball.penup()
hit_ball.goto(0, 0)
hit_ball.dx = 5
hit_ball.dy = -5
输出:
以下是使用Turtle库创建乒乓游戏的完整Python程序。
# Import required library
import turtle
# Create screen
sc = turtle.Screen()
sc.title("Pong game")
sc.bgcolor("white")
sc.setup(width=1000, height=600)
# Left paddle
left_pad = turtle.Turtle()
left_pad.speed(0)
left_pad.shape("square")
left_pad.color("black")
left_pad.shapesize(stretch_wid=6, stretch_len=2)
left_pad.penup()
left_pad.goto(-400, 0)
# Right paddle
right_pad = turtle.Turtle()
right_pad.speed(0)
right_pad.shape("square")
right_pad.color("black")
right_pad.shapesize(stretch_wid=6, stretch_len=2)
right_pad.penup()
right_pad.goto(400, 0)
# Ball of circle shape
hit_ball = turtle.Turtle()
hit_ball.speed(40)
hit_ball.shape("circle")
hit_ball.color("blue")
hit_ball.penup()
hit_ball.goto(0, 0)
hit_ball.dx = 5
hit_ball.dy = -5
# Initialize the score
left_player = 0
right_player = 0
# Displays the score
sketch = turtle.Turtle()
sketch.speed(0)
sketch.color("blue")
sketch.penup()
sketch.hideturtle()
sketch.goto(0, 260)
sketch.write("Left_player : 0 Right_player: 0",
align="center", font=("Courier", 24, "normal"))
# Functions to move paddle vertically
def paddleaup():
y = left_pad.ycor()
y += 20
left_pad.sety(y)
def paddleadown():
y = left_pad.ycor()
y -= 20
left_pad.sety(y)
def paddlebup():
y = right_pad.ycor()
y += 20
right_pad.sety(y)
def paddlebdown():
y = right_pad.ycor()
y -= 20
right_pad.sety(y)
# Keyboard bindings
sc.listen()
sc.onkeypress(paddleaup, "e")
sc.onkeypress(paddleadown, "x")
sc.onkeypress(paddlebup, "Up")
sc.onkeypress(paddlebdown, "Down")
while True:
sc.update()
hit_ball.setx(hit_ball.xcor()+hit_ball.dx)
hit_ball.sety(hit_ball.ycor()+hit_ball.dy)
# Checking borders
if hit_ball.ycor() > 280:
hit_ball.sety(280)
hit_ball.dy *= -1
if hit_ball.ycor() < -280:
hit_ball.sety(-280)
hit_ball.dy *= -1
if hit_ball.xcor() > 500:
hit_ball.goto(0, 0)
hit_ball.dy *= -1
left_player += 1
sketch.clear()
sketch.write("Left_player : {} Right_player: {}".format(
left_player, right_player), align="center",
font=("Courier", 24, "normal"))
if hit_ball.xcor() < -500:
hit_ball.goto(0, 0)
hit_ball.dy *= -1
right_player += 1
sketch.clear()
sketch.write("Left_player : {} Right_player: {}".format(
left_player, right_player), align="center",
font=("Courier", 24, "normal"))
# Paddle ball collision
if (hit_ball.xcor() > 360 and
hit_ball.xcor() < 370) and
(hit_ball.ycor() < right_pad.ycor()+40 and
hit_ball.ycor() > right_pad.ycor()-40):
hit_ball.setx(360)
hit_ball.dx*=-1
if (hit_ball.xcor()<-360 and
hit_ball.xcor()>-370) and
(hit_ball.ycor()<left_pad.ycor()+40 and
hit_ball.ycor()>left_pad.ycor()-40):
hit_ball.setx(-360)
hit_ball.dx*=-1