error: "a patch cannot access a variable of a turtle without specifying which turtle" in NetLogo

Question

我想阻止海龟访问它之前访问过的补丁。我正在开发代码，但出现此错误：error: "a patch cannot access a variable of a turtle without specifying which turtle".

我很确定这是另一个语法错误。但是，我找不到这个错误。我试图简化代码，让你们更容易帮助我。欢迎任何形式的帮助。

turtles-own: patchVisited

setup:   set patchVisited (list patch-here)

go:   set patchVisited lput patch-here patchVisited

move:

let availablePatch [neighbors with [not member? self [patchVisited] of myself and resource-value > 0.2 ]] of patch-here
let neighAvailable count availablePatch 

move-to max-one-of availablePatch [resource-value]

Answer 1

改变

let availablePatch [ neighbors with [not member? self [patchVisited] of myself and resource-value > 0.2 ] ] of patch-here

至

let availablePatch neighbors with [not member? self [patchVisited] of myself and resource-value > 0.2 ]

你不需要neighbors of patch-here，这就是neighbors的意思。

总的来说： (1) NetLogo 高亮显示语法错误的行。这对我们（和您）来说是有用的信息，因此请将其包含在问题描述中。 (2) 对代码进行较小的更改——在继续之前让较小的更改生效。在这种情况下，您可以只让一只乌龟四处走动并执行类似以下操作：

ask neighbors with [not member? self [patchVisited] of myself] [set pcolor red]

之后又把补丁变白了。