Question

我正在模拟有界天使内的随机行走，并且我想在模型中计算2D乌龟的mean squared displacement。乌龟都从中心开始。我不确定乌龟到达边界后如何更新其xy坐标。我要求海龟在撞到墙壁时反弹，并保存新的xcor和ycor。这是我的代码：

to go
  ask turtles
  [; head in a random direction in range (-theta, +theta)
   ifelse theta = 0 
     [set heading heading + 0 ]
   ; choose a normally distributed random angel in range (-theta, +theta)
     [set heading heading +  random-normal 0 (theta)]

    fd step-size 
    set xc xc + (step-size * dx)
    set yc yc + (step-size * dy)

   ; if your next patch is blocked:
    ifelse not can-move? 1
    [ set heading heading + 180
      fd 1 ]

   ;otherwise:
    [rt random-float random-normal 0 (theta)]
   set xcor xc
   set ycor yc
   set dist sqrt (xc * xc + yc * yc)]
  ]

我收到错误提示： “不能将海龟移出世界边缘。乌龟423运行SET时出错通过过程GO调用由Button'go'调用。“有什么想法吗？

Answer 1

您禁用了网格换行功能，代理的xcor / ycor超过了max-pxcor / min-pxcor和max-pycor / min-pycor

在NetLogo中，当海龟撞到世界的边界后，如何跟踪海龟的坐标？

1 个答案: