我怎样才能一次只移动一只乌龟？

Question

因此，在我在第 27 行和第 42 行添加 if 语句之前，我的程序运行正常： if (currentTurtle == "") or (currentTurtle == "one"): 和 if (currentTurtle == "") or (currentTurtle == "two"): 分别。在我添加这些检查之前，如果海龟彼此非常接近，它们只会同时移动，因为我使用 if 语句来检查光标到海龟的距离。我尝试在第 27 行和第 42 行添加检查以一次只移动一个，但后来我的海龟变得反应迟钝。

这是我的代码：

from turtle import Screen, Turtle

screen = Screen()

turt1 = Turtle("turtle")
turt2 = Turtle("turtle")
turt1.speed(0)
turt2.speed(0)
turt1.shape('circle')
turt2.shape('circle')
turt1.color('green')
turt2.color('blue')

turt1.penup()
turt1.goto(-100,100)
turt2.penup()
turt2.goto(100,-100)

currentTurtle = ""

def resetCurrent():
  currentTurtle = ""

def dragging(x, y):
  if (x <= turt1.xcor() + 10) and (x >= turt1.xcor() - 10):
    if (y <= turt1.ycor() + 10) and (y >= turt1.ycor() - 10):
      if (currentTurtle == "") or (currentTurtle == "one"):
        currentTurtle = "one"
    elif (currentTurtle == "one"):
      currentTurtle == ""
  elif (currentTurtle == "one"):
    currentTurtle == ""

  if currentTurtle == "one":
    if (x <= turt1.xcor() + 10) and (x >= turt1.xcor() - 10):
      if (y <= turt1.ycor() + 10) and (y >= turt1.ycor() - 10):
        turt1.goto(x, y)

def dragging2(x, y):
  if (x <= turt2.xcor() + 10) and (x >= turt2.xcor() - 10):
    if (y <= turt2.ycor() + 10) and (y >= turt2.ycor() - 10):
      if (currentTurtle == "") or (currentTurtle == "two"):
        currentTurtle = "two"
    elif (currentTurtle == "two"):
      currentTurtle = ""
  elif (currentTurtle == "two"):
    currentTurtle = ""

  if currentTurtle == "two":
    if (x <= turt2.xcor() + 10) and (x >= turt2.xcor() - 10):
      if (y <= turt2.ycor() + 10) and (y >= turt2.ycor() - 10):
        turt2.goto(x, y)

def main():  # This will run the program
    screen.listen()
    
    turt1.ondrag(dragging)
    turt2.ondrag(dragging2)

    screen.mainloop()  # This will continue running main() 

main()

非常感谢任何帮助！

Answer 1

您的 dragging() 代码已经变得非常复杂，我无法理解您想要 与您正在做的[=18] =].我将使用一种完全不同、更简单的方法重新开始：

from turtle import Screen, Turtle
from functools import partial

def dragging(tortoise, x, y):
    for turtle in screen.turtles():  # disable event handlers inside handler
        turtle.ondrag(None)

    tortoise.goto(x, y)

    for turtle in screen.turtles():  # reenable event handers on the way out
        turtle.ondrag(partial(dragging, turtle))

def main():

    turtle_1.ondrag(partial(dragging, turtle_1))
    turtle_2.ondrag(partial(dragging, turtle_2))

    screen.mainloop()

screen = Screen()

turtle_1 = Turtle('turtle')
turtle_1.shape('circle')
turtle_1.speed('fastest')
turtle_1.penup()

turtle_1.color('green')
turtle_1.goto(-100, 100)

turtle_2 = turtle_1.clone()  # turtle_2 is a lot like turtle_1

turtle_2.color('blue')
turtle_2.goto(100, -100)

main()

这是否为您提供了您想要的控制和行为？如果不是，请在您的问题中告诉我们您想要发生什么，而不仅仅是代码不做什么。