model - Netlogo 中是否可以创建由补丁颜色定义的边界？

Question

我试图让我的 turtle “巡逻”环境的某个区域，但是当我添加代码来包含它们时，它们会走到区域的边缘，然后停下来，蜱虫也会停止。

相反，如果他们的“能量”变量低于[x]，是否可以允许他们离开领土

Answer 1

对于周长问题，如果我理解你的问题，你可以在补丁设置中这样做，以在最大坐标处定义周长:

ask patches with [
    pxcor = max-pxcor or
    pxcor = min-pxcor or
    pycor = max-pycor or
    pycor = min-pycor ] [
    set pcolor red ;; This setup a red perimeter
  ]

否则您可以选择像这样的精确坐标(16x16 方形示例):

ask patches with [ pycor >= -16  and pycor >= 16] 
  [ set pcolor red ]
    ask patches with [ pycor <= -16  and pycor <= 16]
  [ set pcolor red ]
    ask patches with [ pxcor >= -16  and pxcor >= 16]
  [ set pcolor red ]
    ask patches with [ pxcor <= -16  and pxcor <= 16]
  [ set pcolor red ]

然后将其放在您的巡逻台阶中以禁止在红色斑 block 上行走:

ifelse [pcolor] of patch-ahead 1 = red
      [ lt random-float 360 ]   ;; See a red patch ahead : turn left randomly
      [ fd 1 ]                  ;; Otherwise, its safe to go foward.