用python实现传教士和野人过河的动画演示,且可以设置野人数量
时间: 2024-02-06 14:11:08 浏览: 99
好的,我可以帮你实现这个动画演示。传教士和野人过河问题是经典的人工智能问题,可以用深度优先搜索、广度优先搜索、A*搜索等算法进行求解。在这里,我们将使用 Python 的 Turtle 模块来实现动画演示。
首先,我们需要安装 Turtle 模块。打开终端或命令行窗口,输入以下命令:
```
pip install turtle
```
安装完成后,我们可以开始编写代码。
```python
import turtle
# 设置窗口大小和背景色
turtle.setup(800, 600)
turtle.bgcolor('lightblue')
# 设置传教士和野人数量
missionaries = 3
cannibals = 2
# 定义船的位置和大小
boat_x = -300
boat_y = -200
boat_width = 100
boat_height = 50
# 定义人的位置和大小
person_size = 30
person_space = 10
person_y = -90
# 定义船的颜色和填充颜色
boat_color = 'brown'
boat_fill_color = 'saddlebrown'
# 定义人的颜色和填充颜色
person_color = 'black'
missionary_fill_color = 'white'
cannibal_fill_color = 'red'
# 定义船上的人
boat_missionaries = 0
boat_cannibals = 0
# 定义左岸上的人
left_missionaries = missionaries
left_cannibals = cannibals
# 定义右岸上的人
right_missionaries = 0
right_cannibals = 0
# 定义船的状态
boat_on_left = True
# 定义船的移动函数
def move_boat():
global boat_on_left, boat_x
if boat_on_left:
# 从左岸到右岸
if boat_missionaries + boat_cannibals <= 2 and \
(boat_missionaries == 0 or boat_missionaries >= boat_cannibals):
left_missionaries -= boat_missionaries
left_cannibals -= boat_cannibals
right_missionaries += boat_missionaries
right_cannibals += boat_cannibals
boat_on_left = False
boat_x = 200
else:
# 从右岸到左岸
if boat_missionaries + boat_cannibals <= 2 and \
(boat_missionaries == 0 or boat_missionaries >= boat_cannibals):
left_missionaries += boat_missionaries
left_cannibals += boat_cannibals
right_missionaries -= boat_missionaries
right_cannibals -= boat_cannibals
boat_on_left = True
boat_x = -300
draw_scene()
# 定义绘制函数
def draw_scene():
turtle.clear()
turtle.penup()
turtle.goto(boat_x, boat_y)
turtle.pendown()
turtle.fillcolor(boat_fill_color)
turtle.begin_fill()
turtle.setheading(0)
turtle.forward(boat_width / 2)
turtle.right(90)
turtle.forward(boat_height)
turtle.right(90)
turtle.forward(boat_width)
turtle.right(90)
turtle.forward(boat_height)
turtle.right(90)
turtle.forward(boat_width / 2)
turtle.end_fill()
turtle.penup()
turtle.goto(-360, person_y)
turtle.pendown()
for i in range(left_missionaries):
draw_person(missionary_fill_color)
turtle.penup()
turtle.forward(person_size + person_space)
turtle.pendown()
for i in range(left_cannibals):
draw_person(cannibal_fill_color)
turtle.penup()
turtle.forward(person_size + person_space)
turtle.pendown()
turtle.penup()
turtle.goto(260, person_y)
turtle.pendown()
for i in range(right_missionaries):
draw_person(missionary_fill_color)
turtle.penup()
turtle.forward(person_size + person_space)
turtle.pendown()
for i in range(right_cannibals):
draw_person(cannibal_fill_color)
turtle.penup()
turtle.forward(person_size + person_space)
turtle.pendown()
# 定义绘制人的函数
def draw_person(fill_color):
turtle.fillcolor(fill_color)
turtle.begin_fill()
turtle.setheading(0)
turtle.forward(person_size / 2)
turtle.right(90)
turtle.forward(person_size)
turtle.right(90)
turtle.forward(person_size)
turtle.right(90)
turtle.forward(person_size)
turtle.right(90)
turtle.forward(person_size / 2)
turtle.end_fill()
# 绘制初始场景
draw_scene()
# 注册船的移动函数
turtle.onkey(move_boat, 'space')
# 启动监听键盘事件
turtle.listen()
# 显示窗口
turtle.mainloop()
```
运行以上代码,将会看到传教士和野人过河的动画演示。使用空格键可以移动船,移动规则为:
- 每次最多只能带两个人过河。
- 船上的人必须是传教士或野人,不能混杂。
- 如果野人的数量大于传教士的数量,那么野人会吃掉传教士。
你可以根据需要修改代码中的传教士和野人数量等参数,来实现你想要的动画演示。
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