PONG GAME APP

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 from kivy.app import App

from kivy.core.audio import SoundLoader
from kivy.uix.widget import Widget
from kivy.properties import (
    NumericProperty, ReferenceListProperty, ObjectProperty
)
from kivy.vector import Vector
from kivy.clock import Clock
from random import randint
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
import pickle
import os.path


class MenuScreen(Screen):
    pass


class WindowsManager(ScreenManager):
    pass


class Player(Widget):
    click = SoundLoader.load("ClickSound.wav")
    velocity_x = NumericProperty(0)
    velocity_y = NumericProperty(0)
    velocity = ReferenceListProperty(velocity_x, velocity_y)

    def move(self):
        self.pos = Vector(*self.velocity) + self.pos

    def bounce_ball(self, ball):
        if self.collide_widget(ball):
            self.click.play()

            ball.velocity_y *= -1


class PongBall(Widget):
    velocity_x = NumericProperty(0)
    velocity_y = NumericProperty(0)
    velocity = ReferenceListProperty(velocity_x, velocity_y)

    def move(self):
        self.pos = Vector(*self.velocity) + self.pos


class PongGame(Widget):
    click = SoundLoader.load("ClickSound.wav")
    failed = SoundLoader.load("Fail.wav")
    score = NumericProperty(0)

    ball = ObjectProperty(None)
    player = ObjectProperty(None)
    if os.path.isfile("savedpong"):
      text = pickle.load(open("savedpong", "rb"))
      print(text)
      score = NumericProperty(text)
    else:
     score = NumericProperty(0)


    def serve_ball(self):
        self.ball.center = self.center
        self.ball.velocity = Vector(8, 0).rotate(randint(0, 360))

    def serve_player(self):
        self.player.center = self.center
        self.player.velocity = Vector(0, 0)

    def update(self, dt):
        self.player.move()
        self.ball.move()
        score = 0

        if (self.ball.top > self.height):
            self.click.play()
            self.ball.velocity_y *= -1
            self.score += 1
            score = self.score

            score = pickle.dump(score, open("savedpong", "wb"))
            print(score)

        if (self.ball.x < 0) or (self.ball.right > self.width):
            self.click.play()
            self.ball.velocity_x *= -1
            self.score += 1
            score = self.score

            score = pickle.dump(score, open("savedpong", "wb"))
            print(score)

        if (self.ball.y < 0):
            self.failed.play()
            print('gameover')
            self.score = 0
            score = pickle.dump(score, open("savedpong", "wb"))

            self.serve_ball()

        self.player.bounce_ball(self.ball)

    def on_touch_move(self, touch):

        self.player.center_x = touch.x


class PongApp(App):
    def build(self):
        game = PongGame()
        game.serve_ball()
        game.serve_player()

        Clock.schedule_interval(game.update, 1.0 / 60.0)

        return game


if __name__ == '__main__':
    PongApp().run()


KV FILE







<Player>:
    size:100,20


    canvas:

        Rectangle:
            pos: self.pos
            size: self.size






<PongBall>:

    size: 30, 30

    canvas:


        Ellipse:
            pos: self.pos
            size: self.size




<PongGame>:
    canvas.before:
        Color:
            rgba: (255/31,204/204,50/255,255)
        Rectangle:
            pos: self.pos
            size: self.size

    name: "game"

    ball: pong_ball
    player: player_1




    Label:
        font_size: 70
        font_name: "Comic"
        center_x: root.width / 2.1
        top: root.top - 50
        text: str(root.score)












    PongBall:
        id: pong_ball
        center: self.parent.center

    Player:
        id: player_1