我正在从一个楼层对疏散行为进行建模，我编写了代码，但是Netlogo并没有出现任何错误，但是我不知道为什么我的模型不起作用。
to go
ask turtles with [pcolor = yellow] [walk]
tick
end
to walk
;room1
ask turtles with [pxcor < 71 and pycor < 79 and pxcor > 0 and pycor > 50]
[ face one-of patches with [pxcor <= 58.57 and pxcor >= 49.42 and pycor = 50]]
;room2
ask turtles with [pxcor < 112 and pycor < 79 and pxcor > 71 and pycor > 50]
[ face one-of patches with [pxcor <= 108.57 and pxcor >= 99.42 and pycor = 50]]
;room3
ask turtles with [pxcor < 82 and pycor < 36 and pxcor > 0 and pycor > 0]
[face one-of patches with [pxcor <= 79.575 and pxcor >= 70.425 and pycor = 36]]
;room4
ask turtles with [pxcor < 132 and pycor < 36 and pxcor > 82 and pycor > 0]
[face one-of patches with [pxcor <= 93.575 and pxcor >= 84.425 and pycor = 36]]
fd 0.5
;corridor
ask turtles with [pxcor < 132 and pycor < 50 and pxcor > 0 and pycor > 36]
[face one-of patches with [pxcor <= 132 and pxcor >= 112 and pycor = 50]]
;exit
ask turtles with [pxcor < 132 and pycor < 79 and pxcor >= 112 and pycor >= 50]
[face one-of patches with [pxcor <= 129.57 and pxcor >= 120.42 and pycor = 79]]
fd 1
end
答案 0 :(得分：1)
您的问题不是特别清楚，因为“不起作用”不能提供有关该问题的足够信息。为了获得更有用的答案，您应该描述您期望的行为和实际获得的行为。话虽如此，但是您的代码中存在一个明显的问题，这可能正是您要问的。
在go语句中，您有turtles调用walk过程。在步行过程中，face命令位于ask turtles括号内，而fd命令位于括号之内。我假设这是有意的，并且您要尝试做的是让四个if语句使turtle朝向您想要的方向，然后fd将其移动。
但是，在步行过程中，您要重复ask turtles。您可能只想改变一只乌龟（被要求行走的一只乌龟）的方向。
to go
ask turtles with [pcolor = yellow] [walk]
tick
end
to walk
;room1
if pxcor < 71 and pycor < 79 and pxcor > 0 and pycor > 50
[ face one-of patches with [pxcor <= 58.57 and pxcor >= 49.42 and pycor = 50]
]
;room2
if pxcor < 112 and pycor < 79 and pxcor > 71 and pycor > 50
[ face one-of patches with [pxcor <= 108.57 and pxcor >= 99.42 and pycor = 50]
]
;room3
if pxcor < 82 and pycor < 36 and pxcor > 0 and pycor > 0
[ face one-of patches with [pxcor <= 79.575 and pxcor >= 70.425 and pycor = 36]
]
;room4
if pxcor < 132 and pycor < 36 and pxcor > 82 and pycor > 0
[ face one-of patches with [pxcor <= 93.575 and pxcor >= 84.425 and pycor = 36]
]
fd 0.5
;corridor
if pxcor < 132 and pycor < 50 and pxcor > 0 and pycor > 36
[ face one-of patches with [pxcor <= 132 and pxcor >= 112 and pycor = 50]
]
;exit
if pxcor < 132 and pycor < 79 and pxcor >= 112 and pycor >= 50
[face one-of patches with [pxcor <= 129.57 and pxcor >= 120.42 and pycor = 79]
]
fd 1
end
此代码中还有其他一些问题。首先是您似乎混用了xcor和pxcor（对于y坐标也是如此）。 xcor是乌龟坐标，pxcor是面块坐标。乌龟确实有权访问补丁的变量，包括坐标，因此代码不会产生错误。但是我对诸如face one-of patches with [pxcor <= 108.57 and pxcor >= 99.42 and pycor = 50]之类的声明感到担忧。这等效于face one-of patches with [pxcor <= 108 and pxcor >= 100 and pycor = 50]，因为pxcor和pycor是整数。您在其中使用小数的事实使我认为您对坐标感到困惑。
第二个是所有被要求行走的海龟都将向前移动1.5，但我认为您希望某些移动0.5，其他一些移动1。一旦海龟进入行走程序，{{1} }语句（或您的版本中的if）仅更改标题。 with语句适用于所有海龟。
第三，我很想使用fd来简化此代码的可读性。像这样：
patch-sets请注意，这与您的不一样，因为我不知道哪些补丁是黄色的。您必须进行修改才能解决此问题。
我在过程中移动to go
ask turtles with [pcolor = yellow] [walk]
tick
end
to walk
let room1 patches with [pxcor < 71 and pycor < 79 and pxcor > 0 and pycor > 50]
let room2 patches with [pxcor < 112 and pycor < 79 and pxcor > 71 and pycor > 50]
let room3 patches with [pxcor < 82 and pycor < 36 and pxcor > 0 and pycor > 0]
let room4 patches with [pxcor < 132 and pycor < 36 and pxcor > 82 and pycor > 0]
let corridor patches with [pxcor < 132 and pycor < 50 and pxcor > 0 and pycor > 36]
let exitpoint patches with [pxcor < 132 and pycor < 79 and pxcor >= 112 and pycor >= 50]
ask turtles-on room1
[ face one-of patches with [pxcor <= 58 and pxcor >= 50 and pycor = 50
fd 0.5
]
ask turtles-on room2
[ face one-of patches with [pxcor <= 108 and pxcor >= 100 and pycor = 50
fd 0.5
]
ask turtles-on room3
[ face one-of patches with [pxcor <= 79 and pxcor >= 71 and pycor = 36
fd 0.5
]
ask turtles-on room4
[ face one-of patches with [pxcor <= 93 and pxcor >= 85 and pycor = 36
fd 0.5
]
ask turtles on corridor
[ face one-of patches with [pxcor <= 132 and pxcor >= 112 and pycor = 50]
fd 1
]
ask turtles-on exitpoint
[ face one-of patches with [pxcor <= 129 and pxcor >= 121 and pycor = 79]
fd 1
]
end
的原因是补丁集仅创建了一次。如果您打算在其他地方使用这些房间等，那么将它们作为全局变量并将结构放入设置中是值得的。