Python Turtle : 清除窗口并重新开始游戏。

Question

我试着在Python上用海龟扩展做一个乒乓球游戏，一切都很顺利。

我想在玩家达到一定的分数时重新启动游戏，游戏正常重启，窗口自行清除，除了中心的一个暗色方块在接下来的游戏中保留下来。

这里是我重新启动游戏的代码。

import turtle

def run_game():
    wn = turtle.Screen()
    wn.title("Ping Pong Pour le Nuls")
    wn.bgcolor("green")
    wn.setup(width=800, height=600)
    wn.tracer(0)

    Player_1 = wn.textinput("Player 1", "Name of the player: ")
    Player_2 = wn.textinput("Player 2", "Name of the player: ")

    # Score
    score_a = 0
    score_b = 0
    # Paddle A
    paddle_a = turtle.Turtle()
    paddle_a.speed(0)
    paddle_a.shape("square")
    paddle_a.color("white")
    paddle_a.shapesize(stretch_wid=5, stretch_len=1)
    paddle_a.penup()
    paddle_a.goto(-350, 0)

    # Paddle B
    paddle_b = turtle.Turtle()
    paddle_b.speed(0)
    paddle_b.shape("square")
    paddle_b.color("white")
    paddle_b.shapesize(stretch_wid=5, stretch_len=1)
    paddle_b.penup()
    paddle_b.goto(350, 0)

    # Ball
    ball = turtle.Turtle()
    ball.speed(0)
    ball.shape("square")
    ball.color("white")
    ball.penup()
    ball.goto(0, 0)
    ball.dx = 0.4
    ball.dy = -0.4

    # Pen
    pen = turtle.Turtle()
    pen.speed(0)
    pen.color("white")
    pen.penup()
    pen.hideturtle()
    pen.goto(0, 260)
    pen.write(str(Player_1) + " : 0    " + str(Player_2) + " : 0    ", align="center", font=("Courier", 14, "normal"))


    # Funtion

    def paddle_a_up():
        y = paddle_a.ycor()
        y += 20
        paddle_a.sety(y)

    def paddle_a_down():
        y = paddle_a.ycor()
        y += -20
        paddle_a.sety(y)

    def paddle_b_up():
        y = paddle_b.ycor()
        y += 20
        paddle_b.sety(y)

    def paddle_b_down():
        y = paddle_b.ycor()
        y += -20
        paddle_b.sety(y)


    def pen_2():
        pen_2 = turtle.Turtle()
        pen_2.speed(0)
        pen_2.color("white")
        pen_2.penup()
        pen_2.hideturtle()
        pen_2.goto(0, 0)
        pen_2.write("Player 2 Wins", align="center", font=("Courier", 24, "normal"))

    # Keyboard binding

    wn.listen()
    wn.onkeypress(paddle_a_up, "w")
    wn.onkeypress(paddle_a_down, "x")
    wn.onkeypress(paddle_b_up, "Up")
    wn.onkeypress(paddle_b_down, "Down")

    # Main Game Loop
    while True:
        wn.update()

        # Move the ball
        ball.setx(ball.xcor() + ball.dx)
        ball.sety(ball.ycor() + ball.dy)


        # Border checking
        if ball.ycor() > 290:
            ball.sety(290)
            ball.dy *= -1

        if ball.ycor() < -290:
            ball.sety(-290)
            ball.dy *= -1

        if ball.xcor() > 390:
            ball.goto(0, 0)
            ball.dx *= -1
            score_a += 1
            pen.clear()
            pen.write(str(Player_1) + " : {}    ".format(score_a) + str(Player_2) + " : {}    ".format(score_b),
                      align="center", font=("Courier", 14, "normal"))


        if ball.xcor() < -390:
            ball.goto(0, 0)
            ball.dx *= -1
            score_b += 1
            pen.clear()
            pen.write(str(Player_1) + " : {}    ".format(score_a) + str(Player_2) + " : {}    ".format(score_b),
                      align="center", font=("Courier", 14, "normal"))



        # Paddle and ball collisions

        if (ball.xcor() > 340 and ball.xcor() < 350) and (ball.ycor() < paddle_b.ycor() + 40 and ball.ycor() > paddle_b.ycor() -40):
            ball.setx(340)
            ball.dx *= -1
        if (ball.xcor() < -340 and ball.xcor() > -350) and (ball.ycor() < paddle_a.ycor() + 40 and ball.ycor() > paddle_a.ycor() -40):
            ball.setx(-340)
            ball.dx *= -1

        # Paddles can't go beyond screen
        if paddle_a.ycor() >= 260:
            paddle_a_down()
        if paddle_a.ycor() <= -260:
            paddle_a_up()
        if paddle_b.ycor() >= 260:
            paddle_b_down()
        if paddle_b.ycor() <= -260:
            paddle_b_up()

        if score_a >= 3:
            restart = wn.textinput("Game result", "Well done " + Player_1 + ", you won ! \nDo you want to restart ? (y/n)")
            if restart == "y":
                wn.reset()
                run_game()
            else:
                break
        if score_b >= 3:
            restart = wn.textinput("Game result", "Well done " + Player_2 + ", you won ! \nDo you want to restart ? (y/n)")
            if restart == "y":
                wn.reset()
                run_game()
            else:
                break


run_game()

非常感谢你的帮助，并有一个伟大的一天。游戏输出

Answer 1

在这里。而不是使用 wn.reset()，我用 wn.clearscreen(). 它做到了!

代码。

import turtle

def run_game():

    wn = turtle.Screen()
    wn.title("Ping Pong Pour le Nuls")
    wn.bgcolor("green")
    wn.setup(width=800, height=600)
    wn.tracer(0)

    Player_1 = wn.textinput("Player 1", "Name of the player: ")
    Player_2 = wn.textinput("Player 2", "Name of the player: ")

    # Score
    score_a = 0
    score_b = 0
    # Paddle A
    paddle_a = turtle.Turtle()
    paddle_a.speed(0)
    paddle_a.shape("square")
    paddle_a.color("white")
    paddle_a.shapesize(stretch_wid=5, stretch_len=1)
    paddle_a.penup()
    paddle_a.goto(-350, 0)

    # Paddle B
    paddle_b = turtle.Turtle()
    paddle_b.speed(0)
    paddle_b.shape("square")
    paddle_b.color("white")
    paddle_b.shapesize(stretch_wid=5, stretch_len=1)
    paddle_b.penup()
    paddle_b.goto(350, 0)

    # Ball
    ball = turtle.Turtle()
    ball.speed(0)
    ball.color("black")
    ball.shape("circle")
    ball.penup()
    ball.goto(0, 0)
    ball.dx = 0.4
    ball.dy = -0.4

    # Pen
    pen = turtle.Turtle()
    pen.speed(0)
    pen.color("white")
    pen.penup()
    pen.hideturtle()
    pen.goto(0, 260)
    pen.write(str(Player_1) + " : 0    " + str(Player_2) + " : 0    ", align="center", font=("Courier", 14, "normal"))


    # Funtion

    def paddle_a_up():
        y = paddle_a.ycor()
        y += 20
        paddle_a.sety(y)

    def paddle_a_down():
        y = paddle_a.ycor()
        y += -20
        paddle_a.sety(y)

    def paddle_b_up():
        y = paddle_b.ycor()
        y += 20
        paddle_b.sety(y)

    def paddle_b_down():
        y = paddle_b.ycor()
        y += -20
        paddle_b.sety(y)


    def pen_2():
        pen_2 = turtle.Turtle()
        pen_2.speed(0)
        pen_2.color("white")
        pen_2.penup()
        pen_2.hideturtle()
        pen_2.goto(0, 0)
        pen_2.write("Player 2 Wins", align="center", font=("Courier", 24, "normal"))

    # Keyboard binding

    wn.listen()
    wn.onkeypress(paddle_a_up, "w")
    wn.onkeypress(paddle_a_down, "x")
    wn.onkeypress(paddle_b_up, "Up")
    wn.onkeypress(paddle_b_down, "Down")

    # Main Game Loop
    while True:
        wn.update()

        # Move the ball
        ball.setx(ball.xcor() + ball.dx)
        ball.sety(ball.ycor() + ball.dy)


        # Border checking
        if ball.ycor() > 290:
            ball.sety(290)
            ball.dy *= -1

        if ball.ycor() < -290:
            ball.sety(-290)
            ball.dy *= -1

        if ball.xcor() > 390:
            ball.goto(0, 0)
            ball.dx *= -1
            score_a += 1
            pen.clear()
            pen.write(str(Player_1) + " : {}    ".format(score_a) + str(Player_2) + " : {}    ".format(score_b),
                      align="center", font=("Courier", 14, "normal"))


        if ball.xcor() < -390:
            ball.goto(0, 0)
            ball.dx *= -1
            score_b += 1
            pen.clear()
            pen.write(str(Player_1) + " : {}    ".format(score_a) + str(Player_2) + " : {}    ".format(score_b),
                      align="center", font=("Courier", 14, "normal"))



        # Paddle and ball collisions

        if (ball.xcor() > 340 and ball.xcor() < 350) and (ball.ycor() < paddle_b.ycor() + 40 and ball.ycor() > paddle_b.ycor() -40):
            ball.setx(340)
            ball.dx *= -1
        if (ball.xcor() < -340 and ball.xcor() > -350) and (ball.ycor() < paddle_a.ycor() + 40 and ball.ycor() > paddle_a.ycor() -40):
            ball.setx(-340)
            ball.dx *= -1

        # Paddles can't go beyond screen
        if paddle_a.ycor() >= 260:
            paddle_a_down()
        if paddle_a.ycor() <= -260:
            paddle_a_up()
        if paddle_b.ycor() >= 260:
            paddle_b_down()
        if paddle_b.ycor() <= -260:
            paddle_b_up()

        if score_a >= 3:
            restart = wn.textinput("Game result", "Well done " + Player_1 + ", you won ! \nDo you want to restart ? (y/n)")
            if restart == "y":
                wn.clearscreen()
                run_game()
            else:
                break
        if score_b >= 3:
            restart = wn.textinput("Game result", "Well done " + Player_2 + ", you won ! \nDo you want to restart ? (y/n)")
            if restart == "y":
                wn.clearscreen()
                run_game()
            else:
                break


run_game()

希望能帮到你