在乒乓球比赛中有两个桨和一个球,在这场比赛中击中右边界后球不会回到 0、0 整个脚本还没有完成,但我认为它与goto() 命令,但我不知道,因为我是 Python 新手,请帮我弄清楚这是游戏的脚本:
import turtle
wn = turtle.Screen()
wn.title('Pong by me')
wn.bgcolor('black')
wn.setup(width=800, height=600)
wn.tracer(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 = 2
ball.dy = -2
# Function
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)
# keyboard binding
wn.listen()
wn.onkeypress(paddle_a_up, 'w')
wn.onkeypress(paddle_a_down, 's')
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
答案 0 :(得分:0)
我想你的边界检查应该是这样的
# 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
if ball.xcor() < -390:
ball.goto(0, 0)
ball.dx *= -1
然后它按预期工作