品种补丁集代码无法正常工作

Question

招募程序的代码在模型的多次迭代中运行良好，但最近第一只乌龟似乎从食物中反弹并变成橙色，这可能是寻找食物程序的一部分，而不是改变品种和变白。如果乌龟进入/进入食物块区域，它似乎工作顺利，但它们似乎正在接触食物块的边缘，并以某种方式触发寻找食物过程。或者，可能会发生缩写 to go 代码中的品种转换（询问领导者......设置品种觅食者，设置颜色橙色 + 1），但这似乎不太可能。我尝试扩展补丁集以包含似乎触发此更改的边缘补丁，但这不起作用。任何解决此问题的帮助将不胜感激。

to go
   ask foragers
    [wiggle
     fd 1
     look-for-food
     recruit
     reemerge]
ask leaders
  [wiggle
    fd 1
    return-to-nest
    if count followers with [color = violet] >= 2  ;; transform leader into forager that has found food
    [set breed foragers
     set color orange + 1]]
tick
end

to look-for-food  ;; forager procedure
  if food > 0
  [ set color orange + 1     ;; change color to indicate that they have picked up food
    set food food - 1        ;; and reduce the food source
   facexy nest-x nest-y
    uphill-nest-scent
    fd 1]
  ask foragers with [color = yellow]
  [if not any? followers and food-quality <= 0.6
    [let choice random 3
    (ifelse
        choice = 0
   [uphill-false-food-scent-a]
      choice = 1
      [uphill-food]
       ;;;;;;;;
        [uphill-chemical])]]
  if food-quality > 0.6 and color = yellow
  [uphill-chemical
    fd 3]
end

to recruit  ;; forager procedure
  let potential-leaders foragers-on (patch-set patch -37 -17 patch -36 -17 patch -35 -17 patch -38 -18 patch -37 -18 patch -36 -18 patch -35 -18 patch -34 -18 patch -39 -19 patch -38 -19 patch -37 -19 patch -36 -19 patch -35 -19 patch -34 -19 patch -33 -19 patch -39 -20 patch -38 -20 patch -37 -20 patch -36 -20 patch -35 -20 patch -34 -20 patch -33 -20 patch -39 -21 patch -38 -21 patch -37 -21 patch -36 -21 patch -35 -21 patch -34 -21 patch -33 -21 patch -38 -22 patch -37 -22 patch -36 -22 patch -35 -22 patch -34 -22 patch -37 -23 patch -36 -23 patch -35 -23)
  if any? potential-leaders and not any? leaders and food > 0 and count foragers <= 10  ;; checks if any leaders exist
  [ ask one-of potential-leaders
    [ set breed leaders
    set color white]]  ;; transforms first forager to find food into the leader
end
```````

Answer 1

好的，问题是海龟在两个不同的过程中移动，这两个过程都在同一个刻度内调用。想象一下执行此操作的觅食者 A（您的代码的精简版）：

to go
  ask foragers
  [ wiggle
    forward 1        ; moves 1
    look-for-food
    ...
  ]
  tick
end

所以 A 朝半随机方向前进，然后调用寻找食物过程。进一步想象他们的地盘上有食物：

to look-for-food
  if food > 0
  [ set color orange + 1
    set food food - 1
    facexy nest-x nest-y
    uphill-nest-scent
    forward 1                ; moves again if found food
  ]
  ...
  if food-quality > 0.6 and color = yellow
  [ uphill-chemical
    forward 3                ; potentially moves again
  ]
end

所以觅食者 A 通过顶部的条件，改变颜色，然后向它的巢移动。此外，如果满足其他条件，它会再移动 3 距离。