刚接触NetLogo时，我最近参加了一个大学开放日，并试图为我的乌龟添加额外的功能

Question

我正在试着让一只乌龟在耗尽能量时停下来，就好像它们已经死了一样。但是，当它们吃完草后，在尝试使用if语句时仍然会出现错误。

turtles-own [energy]

to setup
  clear-all
  setup-patches
  setup-turtles
  reset-ticks
end

to setup-patches
  ask patches [ set pcolor green ]
end

to setup-turtles
  create-turtles 100
  ask turtles [ setxy random-xcor random-ycor ]
  set energy energy + 10
end


to go
  move-turtles
  eat-grass
  tick
end

to move-turtles
  ask turtles [ 
    if energy energy = 0 [ stop ]
    right random 360 
    forward 1 
    set energy energy - 1
  ] 
end

to eat-grass
  ask turtles [ 
    if pcolor = green [ 
      set pcolor black 
      set energy energy + 10
    ]
  ]
end

​

​

Answer 1

您重复了变量名energy，只需将if energy energy = 0替换为if energy = 0即可