要求海龟在遇到其他海龟时改变颜色并停下来 Netlogo

Question

我有两只乌龟颜色'green'和颜色'blue'。我想当绿海龟遇到蓝海龟时，蓝海龟变白并停止移动，而绿海龟继续随机移动。这是我的代码，我做了但是它给出了 Expected a literal value 的错误并且没有返回预期的结果。非常感谢任何帮助。

ask turtles with [color = green]
  [if any? other turtles-here with [color = blue]
    [set turtles with [color = blue] [color = white]
]
  ]

Answer 1

你忘了ask（指导）海龟。关键字 with 子集是正确的海龟，但您需要 set 一个变量，而不是 set 海龟集。此外，'=' 用于评估（比较），而不是用于分配值。我想你想要这个：

ask turtles with [color = green]
[ if any? other turtles-here with [color = blue]
  [ ask turtles-here with [color = blue]
    [ set color white
    ]
  ]
]

请注意，我必须重新写turtles-here，否则所有的蓝龟都会变白。一种减少错误的更易读的方法是为相关海龟设置一个临时变量（使用let）。

ask turtles with [color = green]
[ let changers other turtles-here with [color = blue]
  if any? changers
  [ ask changers
    [ set color white
    ]
  ]
]

要求海龟在遇到其他海龟时改变颜色并停下来 Netlogo

Ask turtles to change colour and stop when they meet other turtles Netlogo

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