根据相邻补丁的 pcolor 更改补丁的 pcolor

Question

我试图获得黑色斑块，如果相邻斑块是绿色的，然后变成蓝色，并且不改变已经绿色斑块的颜色，但我还在那里。错误显示“（第 13 行）预期结束括号。”

    ask patches with [neighbors4 pcolor green ] 
  [ set pcolor blue ] 

    to setup
  clear-all
  set-default-shape turtles "square"
  ask patches with [(random-float 100) < density]
    [ set pcolor green ]
  ask patches with [neighbors4 pcolor green ] 
  [ set pcolor blue ] 
  ask patches with [pxcor = min-pxcor]
    [ ignite ]
  set initial-trees count patches with [pcolor = green]
  set burned-trees 0
  reset-ticks
end

请帮忙！

Answer 1

本声明

  ask patches with [neighbors4 pcolor green ] 

不起作用。如果您查找

with

，您会发现后面括号中的代码必须是布尔值：产生 true 或 false 值的比较。

如果您想要询问只有绿色邻居的补丁，请尝试以下操作：

  ask patches with [all? neighbors4 [pcolor = green] ] 

（查阅

all?

以确保您理解它。）