Juego Pong con el patron Singleton

gistfile1.txt

import turtle
import time

# === Singleton: GameController ===
class GameController:
    _instance = None
    
    def __new__(cls):
        if cls._instance is None:
            cls._instance = super().__new__(cls)
            cls._instance.__initialized = False
        return cls._instance
    
    def __init__(self):
        if not self.__initialized:
            self.screen = turtle.Screen()
            self.player1 = Paddle(-350, 0)
            self.player2 = Paddle(350, 0)
            self.ball = Ball()
            self.score = Score()
            self.__initialized = True
    
    def start_game(self):
        self.screen.title("Pong con Singleton")
        self.screen.bgcolor("black")
        self.screen.setup(width=800, height=600)
        self.screen.tracer(0)
        
        self._setup_controls()
        
        while True:
            self.screen.update()
            self.ball.move()
            self._check_collisions()
            time.sleep(0.016)  # 60 FPS
    
    def _setup_controls(self):
        self.screen.listen()
        self.screen.onkeypress(self.player1.up, "w")
        self.screen.onkeypress(self.player1.down, "s")
        self.screen.onkeypress(self.player2.up, "Up")
        self.screen.onkeypress(self.player2.down, "Down")

    def _check_collisions(self):
        # Lógica de colisiones
        if self.ball.distance(self.player1) < 50 and self.ball.xcor() < -340:
            self.ball.bounce_x()
        
        if self.ball.distance(self.player2) < 50 and self.ball.xcor() > 340:
            self.ball.bounce_x()
        
        # Puntos
        if self.ball.xcor() > 390:
            self.score.player1 += 1
            self.ball.reset()
        elif self.ball.xcor() < -390:
            self.score.player2 += 1
            self.ball.reset()

# === Clases del Juego ===
class Paddle(turtle.Turtle):
    def __init__(self, x, y):
        super().__init__()
        self.speed(0)
        self.shape("square")
        self.color("white")
        self.shapesize(stretch_wid=5, stretch_len=1)
        self.penup()
        self.goto(x, y)
    
    def up(self):
        y = self.ycor()
        if y < 250:
            self.sety(y + 20)
    
    def down(self):
        y = self.ycor()
        if y > -240:
            self.sety(y - 20)

class Ball(turtle.Turtle):
    def __init__(self):
        super().__init__()
        self.speed(0)
        self.shape("circle")
        self.color("white")
        self.penup()
        self.dx = 3
        self.dy = 3
    
    def move(self):
        self.setx(self.xcor() + self.dx)
        self.sety(self.ycor() + self.dy)
        
        # Rebote en bordes
        if self.ycor() > 290 or self.ycor() < -290:
            self.bounce_y()
    
    def bounce_x(self):
        self.dx *= -1
    
    def bounce_y(self):
        self.dy *= -1
    
    def reset(self):
        self.goto(0, 0)
        self.dx *= -1

class Score(turtle.Turtle):
    def __init__(self):
        super().__init__()
        self.speed(0)
        self.color("white")
        self.penup()
        self.hideturtle()
        self.player1 = 0
        self.player2 = 0
        self.update()
    
    def update(self):
        self.clear()
        self.goto(0, 260)
        self.write(f"Jugador 1: {self.player1}  Jugador 2: {self.player2}", 
                  align="center", font=("Courier", 24, "normal"))

# === Inicio del Juego ===
if __name__ == "__main__":
    game = GameController()
    game.start_game()