pong.kv

#:kivy 1.0.9

<PongBall>:
    size: 50, 50 
    canvas:
        Ellipse:
            pos: self.pos
            size: self.size          

<PongPaddle>:
    size: 25, 200
    canvas:
        Color:
            rgba:self.color
            
        Rectangle:
            pos:self.pos
            size:self.size

<PongGame>:
    ball: pong_ball
    player1: player_left
    player2: player_right
    # playButton: play_pause

    canvas:
        Rectangle:
            pos: self.center_x - 5, 0
            size: 10, self.height

    BoxLayout:
        center_x: root.center_x
        top: root.top - 10
        size: 500, 150
        padding: 10
        spacing: 10

        Button:
            id: play_pause
            text: 'Pause' if self.parent.parent.playing else 'Play'
            on_press: self.parent.parent.play_pause()

        Button:
            id: reset
            text: 'Reset'
            on_press: self.parent.parent.reset()

        Button:
            # id: reset
            text: 'Exit'
            # on_press: self.parent.parent.reset()

    Label:
        font_size: 70  
        center_x: root.width / 4
        top: root.top - 50
        text: str(root.player1.score)
        
    Label:
        font_size: 70  
        center_x: root.width * 3 / 4
        top: root.top - 50
        text: str(root.player2.score)
    
    PongBall:
        id: pong_ball
        center: root.center
        
    PongPaddle:
        id: player_left
        x: root.x
        center_y: root.center_y
        
    PongPaddle:
        id: player_right
        x: root.width - self.width
        center_y: root.center_y