Netlogo跨breed变量引用：将花朵毒性叠加到蜜蜂死亡率实现方案

• 你在蜜蜂的执行上下文里直接调用了仅属于花朵品类的toxicity变量，NetLogo无法在蜜蜂的属性列表中找到该变量，因此抛出错误
• 原有intoxicarse过程存在嵌套ask bees的逻辑错误：你已经通过外层ask bees触发该过程，过程内部又重复查询所有蜜蜂，会导致逻辑混乱

breed [flowers flower]
breed [bees bee]

turtles-own
[  
  mortality
  tipo_exposicion
  t_supervivencia
]
flowers-own [toxicity]


to setup
  clear-all
  
  create-flowers 5
  [
    set shape "flower"
    set color red
    set size 4
    move-to one-of patches
  ]

  ask patches [set pcolor 63]
  create-bees 100
  [
    setxy random-xcor random-ycor
    set shape "person"
    set size 1
    set color yellow
    set t_supervivencia 0
    set mortality 0 ; 新增初始化死亡率属性
  ]

  ask flowers [set color gray]
  reset-ticks
end

to go
  ask bees [ 
    move-bees
  ]
  ask bees [intoxicarse]
  ask flowers [morir_bees_eating]
  tick
end

to move-bees
  right random 60
  forward 1
  set t_supervivencia t_supervivencia + 1
  set mortality mortality + 1
end 
 
to intoxicarse
  ; 检索当前蜜蜂周围10半径内的灰色有毒花
  let toxic-flowers flowers in-radius 10 with [color = gray]
  if any? toxic-flowers [
    ; 提取所有有毒花的毒性值求和后叠加到自身死亡率
    set mortality mortality + sum [toxicity] of toxic-flowers
  ]
end

to morir_bees_eating
  if color = gray [set toxicity 34]
end

• 蜜蜂创建时新增mortality属性初始化，避免运行时未赋值报错
• 重写中毒逻辑，通过of关键字提取花朵的toxicity属性后再叠加到蜜蜂的mortality，解决跨品类调用变量的错误
• 移除重复的嵌套ask bees逻辑，避免计算结果异常

内容的提问来源于stack exchange，提问作者bksnlow