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问巨蟒触碰迷宫的墙壁
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Stack Overflow用户

提问于 2021-10-11 15:28:27

回答 1查看 353关注 0票数 0

当海龟接触到我迷宫的墙壁时，我需要用Python打印“碰撞”字样。这是我的代码：

maze=turtle.Turtle()
maze.speed(10)
maze.penup()
maze.goto(-12.5, -175)
maze.pendown()
maze.begin_fill()
maze.goto(-12.5, -100)
maze.goto(37.5, -100)
maze.goto(37.5, -75)
maze.goto(-112.5, -75)
maze.goto(-112.5, -37.5)
maze.goto(-125, -37.5)
maze.goto(-125, -87.5)
maze.goto(-87.5, -87.5)
maze.goto(-87.5, -137.5)
maze.goto(-75, -137.5)
maze.goto(-75, -100)
maze.goto(-50, -100)
maze.goto(-50, -162.5)
maze.goto(-150, -162.5)
maze.goto(-150, -137.5)
maze.goto(-112.5, -137.5)
maze.goto(-112.5, -112.5)
maze.goto(-162.5, -112.5)
maze.goto(-162.5, -87.5)
maze.goto(-150, -87.5)
maze.goto(-150, -37.5)
maze.goto(-162.5, -37.5)
maze.goto(-162.5, 12.5)
maze.goto(-137.5, 12.5)
maze.goto(-137.5, -12.5)
maze.goto(-112.5, -12.5)
maze.goto(-112.5, 12.5)
maze.goto(-87.5, 12.5)
maze.goto(-87.5, -50)
maze.goto(-62.5, -50)
maze.goto(-62.5, 25)
maze.goto(-162.5, 25)
maze.goto(-162.5, 137.5)
maze.goto(-112.5, 137.5)
maze.goto(-112.5, 162.5)
maze.goto(-87.5, 162.5)
maze.goto(-87.5, 137.5)
maze.goto(-25, 137.5)
maze.goto(-25, 87.5)
maze.goto(12.5, 87.5)
maze.goto(12.5, 112.5)
maze.goto(37.5, 112.5)
maze.goto(37.5, 87.5)
maze.goto(62.5, 87.5)
maze.goto(62.5, 125)
maze.goto(-12.5, 125)
maze.goto(-12.5, 175)
maze.goto(-175, 175)
maze.goto(-175, -175)
maze.goto(-12.5, -175)
maze.end_fill()
maze.penup()
maze.goto(12.5, -175)
maze.pendown()
maze.begin_fill()
maze.goto(12.5, -125)
maze.goto(87.5, -125)
maze.goto(87.5, -162.5)
maze.goto(150, -162.5)
maze.goto(150, -125)
maze.goto(162.5, -125)
maze.goto(162.5, -100)
maze.goto(125, -100)
maze.goto(125, -137.5)
maze.goto(112.5, -137.5)
maze.goto(112.5, -100)
maze.goto(62.5, -100)
maze.goto(62.5, -75)
maze.goto(150, -75)
maze.goto(150, -12.5)
maze.goto(162.5, -12.5)
maze.goto(162.5, 12.5)
maze.goto(125, 12.5)
maze.goto(125, 37.5)
maze.goto(150, 37.5)
maze.goto(150, 150)
maze.goto(125, 150)
maze.goto(125, 112.5)
maze.goto(100, 112.5)
maze.goto(100, 87.5)
maze.goto(125, 87.5)
maze.goto(125, 62.5)
maze.goto(100, 62.5)
maze.goto(100, 12.5)
maze.goto(37.5, 12.5)
maze.goto(37.5, -50)
maze.goto(-37.5, -50)
maze.goto(-37.5, -25)
maze.goto(25, -25)
maze.goto(25, 25)
maze.goto(0, 25)
maze.goto(0, 0)
maze.goto(-37.5, 0)
maze.goto(-37.5, 50)
maze.goto(-87.5, 50)
maze.goto(-87.5, 75)
maze.goto(-62.5, 75)
maze.goto(-62.5, 100)
maze.goto(-112.5, 100)
maze.goto(-112.5, 50)
maze.goto(-137.5, 50)
maze.goto(-137.5, 112.5)
maze.goto(-50, 112.5)
maze.goto(-50, 62.5)
maze.goto(12.5, 62.5)
maze.goto(12.5, 37.5)
maze.goto(37.5, 37.5)
maze.goto(37.5, 62.5)
maze.goto(87.5, 62.5)
maze.goto(87.5, 150)
maze.goto(12.5, 150)
maze.goto(12.5, 175)
maze.goto(175, 175)
maze.goto(175, -175)
maze.goto(12.5, -175)
maze.end_fill()
maze.penup()
maze.goto(62.5, -50)
maze.pendown()
maze.begin_fill()
maze.goto(125, -50)
maze.goto(125, -12.5)
maze.goto(62.5, -12.5)
maze.goto(62.5, -50)
maze.end_fill()
maze.ht()

myPen=turtle.Turtle()
myPen.penup()
myPen.goto(0,-180)
myPen.pendown()
myPen.color("#DB148E")
myPen.width(4)
myPen.left(90)

#Start of maze

myPen.forward(70)
myPen.right(90)

from turtle import Turtle, Screen

wn = Screen()


speed = 0.5
myPen.speed(10)
myPen.ht()

def travel():
    myPen.forward(speed)
    wn.ontimer(travel, 10)

wn.onkey(lambda: myPen.setheading(90), 'w')
wn.onkey(lambda: myPen.setheading(180), 'a')
wn.onkey(lambda: myPen.setheading(0), 'd')
wn.onkey(lambda: myPen.setheading(270), 's')

wn.listen()

travel()



wn.mainloop()

现在发生的事情是，我可以控制乌龟的W，A，S，D和画迷宫，但我可以只是通过迷宫，它什么也不做。我在想，可以通过检测海龟的位置，或者检测海龟的颜色来做到这一点。谢谢!

turtle-graphics

python-turtle

python

python-3.x

collision-detection

回答 1

Stack Overflow用户

回答已采纳

发布于 2021-10-11 19:03:09

一般情况下，我不会给你带来好消息。但是，因为你把你的迷宫创建成了一个由三个封闭多边形组成的集合：

有一个相对容易的解决办法！首先，从极客为极客写的一篇文章“如何检查给定的点是在多边形内部还是外部？”下载Python代码。将这段代码保存到一个文件中，我将称之为"poly_util.py“，但您可以任意调用它。编辑此文件以删除代码：

# Driver code
if __name__ == '__main__':

以及随之而来的一切。我们不需要这些代码，而且它是错误的缩进代码。接下来，编辑您自己的代码来导入这个文件，然后用begin_fill()和end_poly()调用包装您的begin_poly()和end_poly()段，这样我们就可以用get_poly()捕获多边形。

from turtle import Screen, Turtle
from poly_util import is_inside_polygon

screen = Screen()

maze = Turtle()
maze.hideturtle()
maze.speed('fastest')
maze.penup()

maze.goto(-12.5, -175)

maze.pendown()
maze.begin_fill()
maze.begin_poly()

maze.goto(-12.5, -100)
maze.goto(37.5, -100)
maze.goto(37.5, -75)
maze.goto(-112.5, -75)
maze.goto(-112.5, -37.5)
maze.goto(-125, -37.5)
maze.goto(-125, -87.5)
maze.goto(-87.5, -87.5)
maze.goto(-87.5, -137.5)
maze.goto(-75, -137.5)
maze.goto(-75, -100)
maze.goto(-50, -100)
maze.goto(-50, -162.5)
maze.goto(-150, -162.5)
maze.goto(-150, -137.5)
maze.goto(-112.5, -137.5)
maze.goto(-112.5, -112.5)
maze.goto(-162.5, -112.5)
maze.goto(-162.5, -87.5)
maze.goto(-150, -87.5)
maze.goto(-150, -37.5)
maze.goto(-162.5, -37.5)
maze.goto(-162.5, 12.5)
maze.goto(-137.5, 12.5)
maze.goto(-137.5, -12.5)
maze.goto(-112.5, -12.5)
maze.goto(-112.5, 12.5)
maze.goto(-87.5, 12.5)
maze.goto(-87.5, -50)
maze.goto(-62.5, -50)
maze.goto(-62.5, 25)
maze.goto(-162.5, 25)
maze.goto(-162.5, 137.5)
maze.goto(-112.5, 137.5)
maze.goto(-112.5, 162.5)
maze.goto(-87.5, 162.5)
maze.goto(-87.5, 137.5)
maze.goto(-25, 137.5)
maze.goto(-25, 87.5)
maze.goto(12.5, 87.5)
maze.goto(12.5, 112.5)
maze.goto(37.5, 112.5)
maze.goto(37.5, 87.5)
maze.goto(62.5, 87.5)
maze.goto(62.5, 125)
maze.goto(-12.5, 125)
maze.goto(-12.5, 175)
maze.goto(-175, 175)
maze.goto(-175, -175)
maze.goto(-12.5, -175)

maze.end_poly()
maze.end_fill()

poly_left = maze.get_poly()

maze.penup()
maze.goto(12.5, -175)
maze.pendown()

maze.begin_fill()
maze.begin_poly()

maze.goto(12.5, -125)
maze.goto(87.5, -125)
maze.goto(87.5, -162.5)
maze.goto(150, -162.5)
maze.goto(150, -125)
maze.goto(162.5, -125)
maze.goto(162.5, -100)
maze.goto(125, -100)
maze.goto(125, -137.5)
maze.goto(112.5, -137.5)
maze.goto(112.5, -100)
maze.goto(62.5, -100)
maze.goto(62.5, -75)
maze.goto(150, -75)
maze.goto(150, -12.5)
maze.goto(162.5, -12.5)
maze.goto(162.5, 12.5)
maze.goto(125, 12.5)
maze.goto(125, 37.5)
maze.goto(150, 37.5)
maze.goto(150, 150)
maze.goto(125, 150)
maze.goto(125, 112.5)
maze.goto(100, 112.5)
maze.goto(100, 87.5)
maze.goto(125, 87.5)
maze.goto(125, 62.5)
maze.goto(100, 62.5)
maze.goto(100, 12.5)
maze.goto(37.5, 12.5)
maze.goto(37.5, -50)
maze.goto(-37.5, -50)
maze.goto(-37.5, -25)
maze.goto(25, -25)
maze.goto(25, 25)
maze.goto(0, 25)
maze.goto(0, 0)
maze.goto(-37.5, 0)
maze.goto(-37.5, 50)
maze.goto(-87.5, 50)
maze.goto(-87.5, 75)
maze.goto(-62.5, 75)
maze.goto(-62.5, 100)
maze.goto(-112.5, 100)
maze.goto(-112.5, 50)
maze.goto(-137.5, 50)
maze.goto(-137.5, 112.5)
maze.goto(-50, 112.5)
maze.goto(-50, 62.5)
maze.goto(12.5, 62.5)
maze.goto(12.5, 37.5)
maze.goto(37.5, 37.5)
maze.goto(37.5, 62.5)
maze.goto(87.5, 62.5)
maze.goto(87.5, 150)
maze.goto(12.5, 150)
maze.goto(12.5, 175)
maze.goto(175, 175)
maze.goto(175, -175)
maze.goto(12.5, -175)

maze.end_poly()
maze.end_fill()

poly_right = maze.get_poly()

maze.penup()
maze.goto(62.5, -50)
maze.pendown()

maze.begin_fill()
maze.begin_poly()

maze.goto(125, -50)
maze.goto(125, -12.5)
maze.goto(62.5, -12.5)
maze.goto(62.5, -50)

maze.end_poly()
maze.end_fill()

poly_inner = maze.get_poly()

pen = Turtle()
pen.hideturtle()
pen.speed('fastest')
pen.color("#DB148E")
pen.width(4)

pen.penup()
pen.sety(-180)
pen.pendown()

pen.left(90)
pen.forward(70)
pen.right(90)

#  Start of maze

distance = 0.5

def travel():
    pen.forward(distance)

    position = pen.position()

    if is_inside_polygon(poly_left, position) or is_inside_polygon(poly_right, position) or is_inside_polygon(poly_inner, position):
        pen.undo()

    screen.ontimer(travel, 50)

screen.onkey(lambda: pen.setheading(90), 'w')
screen.onkey(lambda: pen.setheading(180), 'a')
screen.onkey(lambda: pen.setheading(0), 'd')
screen.onkey(lambda: pen.setheading(270), 's')

screen.listen()

travel()

screen.mainloop()

现在，检测冲突只是在三个多边形组件上调用is_inside_polygon()的问题，如上面的代码所示。这支笔会停在墙上，直到你转身和/或向后向合法方向移动为止。代码可能需要一些微调，但由于您使用多边形，这是一个相对容易的修复通常是一个困难的问题。

确保这个伟大的多边形库归功于。

票数 0

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/69528771

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