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怎么用Python写一个三体的气候模拟程序

时间:2020-03-06 13:24:55      阅读:134      评论:0      收藏:0      [点我收藏+]

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首先声明一下,这个所谓的三体气候模拟程序还是很简单的,没有真的3D效果或数学模型之类的,只不过是一个文字表示的模拟程序。该程序的某些地方可能不太严谨,所以也请各位多多包涵。

所谓三体气候模拟,就是将太阳出现的情况进行分类讨论,然后将其呈现出来。比如说一颗太阳就是恒纪元,两颗太阳可能是二日凌空或二日连珠,三颗太阳也可能是三日凌空或三日连珠。只要明白了这一点,这个三体气候模拟的程序就很好写了。

在写程序前,得先导入一个库。由于三体问题的复杂性,我们姑且将三颗太阳出现的概率定位三分之一,也就是说要用到随机的方法。所以我们这里需要导入random库中的randint——随机数函数。

from random import randint

在插入完random库后,要先确定几个变量。由于三体世界有三颗太阳,且可能出现在不同的位置,所以姑且定义变量:

# 其中0代表该太阳为飞星,1代表该太阳出现
sun1 = randint(0, 1)
sun2 = randint(0, 1)
sun3 = randint(0, 1)
# 1~3分别代表不同的位置,如果位置相同就是连珠
sun1_pos = randint(1, 3)
sun2_pos = randint(1, 3)
sun3_pos = randint(1, 3)

除了这几个基础变量,还需要两个用来输出气候类型和纪元类型的变量:weather和era_mode

weather = ""
era_mode = ""

因为后面将这两个变量以文字形式输出,所以是String的形式

完成变量设定后,就该考虑三体世界的气候情况了。

依照书中的描述,我们可以分为(恒纪元就不讨论了):三颗飞星(即没有太阳)、二日凌空、二日连珠、三日凌空和三日连珠

这么一来,就可以开始写程序了。

首先是没有太阳,即三颗飞星情况:

if sun1 == sun2 == sun3 == 0:   # 三颗太阳都没有出现
    weather = "三颗飞星"
    era_mode = "乱纪元"
    print(era_mode, weather)    # 输出气候情况

然后检测是否为恒纪元,即一颗太阳:

if sun1 == 1 and sun2 == sun3 == 0:
    era_mode = "恒纪元"
    print(era_mode)
elif sun2 == 1 and sun1 == sun3 == 0:
    era_mode = "恒纪元"
    print(era_mode)
elif sun3 == 1 and sun1 == sun2 == 0:
    era_mode = "恒纪元"
    print(era_mode)

接着是三颗太阳的情况:

if sun1 == sun2 == sun3 == 1:
    if sun1_pos == sun2_pos == sun3_pos:
        weather = "三日连珠"
        era_mode = "乱纪元"
        print(era_mode, weather)
    else:
        weather = "三日凌空"
        era_mode = "乱纪元"
        print(era_mode, weather)

最后是两颗太阳的情况,就相对比较麻烦了:

if sun1 == sun2 == 1:
    if sun1_pos == sun2_pos:
        weather = "二日连珠"
        era_mode = "乱纪元"
        print(era_mode, weather)
    else:
        weather = "二日凌空"
        era_mode = "乱纪元"
        print(era_mode, weather)
elif sun1 == sun3 == 1:
    if sun1_pos == sun2_pos:
        weather = "二日连珠"
        era_mode = "乱纪元"
        print(era_mode, weather)
    else:
        weather = "二日凌空"
        era_mode = "乱纪元"
        print(era_mode, weather)
elif sun2 == sun3 == 1:
    if sun2_pos == sun3_pos:
        weather = "二日连珠"
        era_mode = "乱纪元"
        print(era_mode, weather)
    else:
        weather = "二日凌空"
        era_mode = "乱纪元"
        print(era_mode, weather)

注意,这个从三颗飞星、一颗太阳、三颗太阳、两颗太阳的顺序是不能打乱的,否则就会出现气候判断不准的情况,因为这个程序的运行是从上往下走的,是线性的。举个例子,如果现在有三颗太阳,而两颗太阳的判定在三颗太阳的判定之前,程序运行时就会出现只输出二日连珠或二日凌空的情况,而不会输出三日凌空或三日连珠。

当然,你也可以用其他的方法让气候判断的排序改变,比如可以全部把这些判断啥的写道不同的函数里在进行判断,但在这里就不加以赘述。

最后把全部代码放上来:

 1 from random import randint
 2 
 3 # 其中0代表该太阳为飞星,1代表该太阳出现
 4 sun1 = randint(0, 1)
 5 sun2 = randint(0, 1)
 6 sun3 = randint(0, 1)
 7 # 1~3分别代表不同的位置,如果位置相同就是连珠
 8 sun1_pos = randint(1, 3)
 9 sun2_pos = randint(1, 3)
10 sun3_pos = randint(1, 3)
11 
12 weather = ""
13 era_mode = ""
14 
15 if sun1 == sun2 == sun3 == 0:   # 三颗太阳都没有出现
16     weather = "三颗飞星"
17     era_mode = "乱纪元"
18     print(era_mode, weather)    # 输出气候情况
19 elif sun1 == 1 and sun2 == sun3 == 0:
20     era_mode = "恒纪元"
21     print(era_mode)
22 elif sun2 == 1 and sun1 == sun3 == 0:
23     era_mode = "恒纪元"
24     print(era_mode)
25 elif sun3 == 1 and sun1 == sun2 == 0:
26     era_mode = "恒纪元"
27     print(era_mode)
28 elif sun1 == sun2 == sun3 == 1:
29     if sun1_pos == sun2_pos == sun3_pos:
30         weather = "三日连珠"
31         era_mode = "乱纪元"
32         print(era_mode, weather)
33     else:
34         weather = "三日凌空"
35         era_mode = "乱纪元"
36         print(era_mode, weather)
37 elif sun1 == sun2 == 1:
38     if sun1_pos == sun2_pos:
39         weather = "二日连珠"
40         era_mode = "乱纪元"
41         print(era_mode, weather)
42     else:
43         weather = "二日凌空"
44         era_mode = "乱纪元"
45         print(era_mode, weather)
46 elif sun1 == sun3 == 1:
47     if sun1_pos == sun2_pos:
48         weather = "二日连珠"
49         era_mode = "乱纪元"
50         print(era_mode, weather)
51     else:
52         weather = "二日凌空"
53         era_mode = "乱纪元"
54         print(era_mode, weather)
55 elif sun2 == sun3 == 1:
56     if sun2_pos == sun3_pos:
57         weather = "二日连珠"
58         era_mode = "乱纪元"
59         print(era_mode, weather)
60     else:
61         weather = "二日凌空"
62         era_mode = "乱纪元"
63         print(era_mode, weather)

总行数不超过100行,还是挺精简的

如果要查看太阳的生成,可以在添加完变量后(即上述代码的11行处)添加:

print("sun1: %u , sun2: %u , sun3: %u" % (sun1, sun2, sun3))
print("sun1_pos: %u , sun2_pos: %u , sun3: %u" % (sun1_pos, sun2_pos, sun3_pos))

欸嘿?你问我print里输入%是什么意思?python3 语法小记可以帮到你,毕竟这个语法还是蛮重要的,可以免去在print中加逗号所带来的一格空格。

2020/3/3

 

怎么用Python写一个三体的气候模拟程序

标签:port   blog   div   mod   改变   lan   color   targe   插入   

原文地址:https://www.cnblogs.com/PekingMan/p/ThreeBodyWeatherMaker.html

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