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python - 如何在游戏中添加计时器以在计时器达到 0 时重置游戏？

问题描述

我正在制作一个游戏，屏幕上有一个追逐者和一个跑步者（鲍勃和菲尔）。这很像标签。截至目前，如果追逐者与跑步者发生碰撞，游戏将重置，玩家会回到原来的位置。我想添加一个计时器，以便当计时器达到 0 时，游戏将重置。

我想过有一个名为“时间”的变量，让它等于 60。然后我会用 time -= 1 和 time.sleep 函数使变量每秒减 1。问题是 time.sleep 函数会停止整个程序。有没有办法在我的游戏中实现计时器而不会遇到前面提到的问题？


import turtle
import math

# Distance formula for collision checking
def isCollision(t1, t2):
    distance = math.sqrt(math.pow(t1.xcor()-t2.xcor(),2)+math.pow(t1.ycor()-t2.ycor(),2))
    if distance < 30:
        return True
    else:
        return False

# Makes the wn that the game is played on
wn = turtle.Screen()
wn.bgcolor("black")
wn.setup(width = 900, height = 900)
wn.tracer()

# Runs the actual game when space is pressed, see around end of code to understand
def game():
        start.clear()
        runner = "omright.gif"
        chaser = "pilav angry.gif"
        wn.addshape(chaser)
        wn.addshape(runner)

        #Designs the 4 sides of the game
        border_pen = turtle.Turtle()
        border_pen.speed(0)
        border_pen.color("white")
        border_pen.penup()
        border_pen.setposition(-300,-300)
        border_pen.pendown()
        border_pen.pensize(3)
        for side in range(4):
            border_pen.fd(600)
            border_pen.lt(90)
        border_pen.hideturtle()

        title = turtle.Turtle()
        title.speed(0)
        title.color("white")
        title.penup()
        title.setpos(0, 325)
        title.write("THE TAG GAME BY OM", False, align = 'center', font=('Impact', 55, 'normal'))
        title.setpos(370, 315)
        title.write("Patent Pending", False, align = 'center', font=('Calibri', 11, 'normal'))
        title.setpos(370, -335)
        title.write("Not Really Pending", False, align = 'center', font=('Calibri', 11, 'normal'))
        title.hideturtle()

        # First turtle (basically an object that can be manipulated)
        bob = turtle.Turtle()
        bob.speed(0)
        bob.color("blue")
        bob.penup()
        bob.setpos(-50, 0)
        bob.seth(0)
        bob.shape(chaser)


        # Function to move first turtle (bob)
        def fd():
            bob.seth(90)
            bob.fd(20)
            # Border Checking
            if bob.xcor() > 280:
                bob.setx(280)
            if bob.ycor() > 280:
                bob.sety(280)

            if bob.xcor() < -280:
                bob.setx(-280)
            if bob.ycor() < -280:
                bob.sety(-280)
            # Checks for collision with enemy player
            if isCollision(bob, phil):
                # If there is collision, resets players'
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)

        # Moves right (90 degrees)
        def right():
            bob.seth(0)
            bob.fd(20)
            # Border Checking
            if bob.xcor() > 280:
                bob.setx(280)
            if bob.ycor() > 280:
                bob.sety(280)

            if bob.xcor() < -280:
                bob.setx(-280)
            if bob.ycor() < -280:
                bob.sety(-280)
            # Checks for collision with enemy player
            if isCollision(bob, phil):
                # If there is collision, resets players'
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)

        # Moves left (90 degrees)
        def left():
            bob.seth(180)
            bob.fd(20)
            # Border Checking
            if bob.xcor() > 280:
                bob.setx(280)
            if bob.ycor() > 280:
                bob.sety(280)

            if bob.xcor() < -280:
                bob.setx(-280)
            if bob.ycor() < -280:
                bob.sety(-280)
            # Checks for collision with enemy player
            if isCollision(bob, phil):
                # If there is collision, resets players'
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)
        def down():
            bob.seth(270)
            bob.fd(20)
            # Border Checking
            if bob.xcor() > 280:
                bob.setx(280)
            if bob.ycor() > 280:
                bob.sety(280)
                phil.seth(180)

            if bob.xcor() < -280:
                bob.setx(-280)
            if bob.ycor() <- 280:
                bob.sety(-280)
            # Checks for collision with enemy player
            if isCollision(bob, phil):
                # If there is collision, resets players'
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)

        # Logs keys and outputs function
        wn.listen()
        wn.onkey(left, "Left")
        wn.onkey(fd, "Up")
        wn.onkey(right, "Right")
        wn.onkey(down, "Down")

        # Second turtle
        phil = turtle.Turtle()
        phil.speed(0)
        phil.penup()
        phil.shape("triangle")
        phil.color("red")
        phil.setpos(50, 0)
        phil.seth(180)
        phil.shape(runner)

        #Refer back to first turtle
        def fdp():
            phil.seth(90)
            phil.fd(20)
            if phil.xcor() > 280:
                phil.setx(280)
            if phil.ycor() > 280:
                phil.sety(280)

            if phil.xcor() < -280:
                phil.setx(-280)
            if phil.ycor() < -280:
                phil.sety(-280)
            if isCollision(bob, phil):
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)
        def rightp():
            phil.seth(0)
            phil.fd(20)
            # Border Checking
            if phil.xcor() > 280:
                phil.setx(280)
            if phil.ycor() > 280:
                phil.sety(280)

            if phil.xcor() < -280:
                phil.setx(-280)
            if phil.ycor() < -280:
                phil.sety(-280)
            # Checks for collision with enemy player
            if isCollision(phil, bob):
                # If there is collision, resets players'
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)


        def leftp():
            phil.seth(180)
            phil.fd(20)
            # Border Checking
            if phil.xcor() > 280:
                phil.setx(280)
            if phil.ycor() > 280:
                phil.sety(280)

            if phil.xcor() < -280:
                phil.setx(-280)
            if phil.ycor() < -280:
                phil.sety(-280)
            # Checks for collision with enemy player
            if isCollision(phil, bob):
                # If there is collision, resets players'
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)

        def downp():
            phil.seth(270)
            phil.fd(20)
            # Border Checking
            if phil.xcor() > 280:
                phil.setx(280)
            if phil.ycor() > 280:
                phil.sety(280)

            if phil.xcor() < -280:
                phil.setx(-280)
            if phil.ycor() < -280:
                phil.sety(-280)
            # Checks for collision with enemy player
            if isCollision(phil, bob):
                # If there is collision, resets players'
                bob.setposition(-50, 0)
                phil.setposition(50, 0)
                bob.seth(0)
                phil.seth(180)

        wn.listen()
        wn.onkey(leftp, "a")
        wn.onkey(fdp, "w")
        wn.onkey(rightp, "d")
        wn.onkey(downp, "s")





# Just a start screen
start = turtle.Turtle()
start.speed(0)
start.color("white")
start.penup()
start.goto(0, 0)
start.write("PRESS SPACE TO START!", False, align='center', font=('Arial Bold', 48, 'normal'))
start.hideturtle()

wn.listen()
wn.onkey(game, "space")

# Stops the program from closing automatically when it is run

turtle.done()

除了实际的计时器外，我还想在屏幕顶部以文本形式实际显示计时器，但我相当有信心在我可以实际添加计时器时将它拉下来。

标签： pythonpython-3.xtimeturtle-graphics

解决方案

我不熟悉您用于创建游戏的包，但我发现了这个类似的问题，在答案ontimer()中说明turtle 中有一个函数。

特别感兴趣的是这部分：

def countdown():
    global timer

    timer -= 1

    if timer <= 0:  # time is up, disable user control
        wn.onkey(None, 'Left')
        wn.onkey(None, 'Right')
        wn.onkey(None, 'Up')
        wn.onkey(None, 'Down')
        # Whatever else you need to do to tell the user its game over
    else:
        wn.ontimer(countdown, 1000)  # one second from now

wn.ontimer(countdown, 1000) # start the timer

因此，该函数仅在设定的毫秒数（1000，在本例中为 1 秒）后调用自身，如果它为零则禁用控件（根据您的游戏需求进行定制）。

您可以将计时器设置为 100 毫秒，并将其更改timer -= 1为-= 0.1更精细的时钟以进行显示。

只要记住在全局的某个地方创建一个计时器。

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