added a ping pong ball game

pingpong/ball.py

@@ -0,0 +1,24 @@
+from turtle import Turtle
+class Ball(Turtle):
+    def __init__(self):
+        super().__init__()
+        self.penup()
+        self.speed("slowest")
+        self.shape("circle")
+        self.color("white")
+        self.xmove= 10
+        self.ymove= 10
+        self.move_speed =0.1
+    def move(self):
+        newx= self.xcor()+self.xmove
+        newy= self.ycor()+self.ymove
+        self.goto(newx,newy)
+    def reflect(self):
+        self.ymove *= -1
+    def bounce(self):
+        self.xmove *= -1
+        self.move_speed *= 0.9
+    def refresh(self):
+        self.goto(0,0)
+        self.move_speed = 0.1
+        self.xmove *= -1

pingpong/main.py

@@ -0,0 +1,48 @@
+from turtle import Turtle ,Screen
+from play import Game
+from ball import Ball
+from scoreboard import Score
+import time
+screen = Screen()
+paddle1 = Game((350,0))
+paddle2 = Game((-350,0))
+ball = Ball()
+score = Score()
+screen.tracer(0)
+
+paddle1.goto(350,0)
+paddle2.goto(-350,0)
+
+screen.setup(width=800,height=600)
+screen.bgcolor("black")
+screen.title("PONG")
+
+
+screen.listen()
+if paddle1.xcor()<390 or paddle2.ycor()<-350:
+    screen.onkey(fun=paddle1.goup,key="Up")
+    screen.onkey(fun=paddle1.godown,key="Down")
+    screen.onkey(fun=paddle2.goup,key="w")
+    screen.onkey(fun=paddle2.godown,key="s")
+
+game_on = True
+while game_on:
+    time.sleep(ball.move_speed)
+    ball.move()
+    if ball.ycor()>280 or ball.ycor()<-280:
+        ball.reflect()
+    if ball.distance(paddle1)<40 or ball.distance(paddle2)<40:
+        ball.bounce()
+
+    if ball.xcor()>400 :
+        ball.refresh()
+        score.goto(-300, 250)
+        score.currentleftscr()
+    if ball.xcor() < -400:
+        ball.refresh()
+        score.goto(300, 250)
+        score.currentrightscr()
+    screen.update()
+
+
+screen.exitonclick()

pingpong/play.py

@@ -0,0 +1,18 @@
+from turtle import Turtle , Screen
+
+class Game(Turtle) :
+    def __init__(self,position):
+        super().__init__()
+        self.penup()
+        self.color("white")
+        self.shape("square")
+        self.shapesize(4, 1)
+        self.goto(position)
+    def goup(self):
+        newy = self.ycor()+20
+        self.goto(self.xcor(),newy)
+    def godown (self):
+        newy = self.ycor()-20
+        self.goto(self.xcor(),newy)
+
+

pingpong/scoreboard.py

@@ -0,0 +1,28 @@
+from turtle import Turtle
+class Score(Turtle):
+    def __init__(self):
+        super().__init__()
+        self.penup()
+        self.hideturtle()
+        self.color("white")
+        self.lscr=0
+        self.rscr=0
+
+
+        self.updatescr()
+
+    def updatescr(self):
+        self.goto(-100, 200)
+        self.write(f"{self.lscr}", True, align="left", font=("arial", 24, "normal"))
+        self.goto(100, 200)
+        self.write(f"{self.rscr}", True, align="right", font=("arial", 24, "normal"))
+
+    def currentleftscr(self):
+        self.lscr+=1
+        self.clear()
+        self.updatescr()
+    def currentrightscr(self):
+        self.rscr+=1
+        self.clear()
+        self.updatescr()
+