NetLogo龟的位置 [英] NetLogo Turtle position

问题描述

我真的是NetLogo编程的新手，我需要一点帮助.我有一个任务，我做了大部分.剩下要做的就是使机器人在迷宫中行走.机器人只能在黑色补丁上行走(紫色补丁代表障碍物).

I'm really new at programming in NetLogo and i need a little help. I have an assignment and i did most of it. The thing left to do is to make robot walk in labyrinth. Robot can walk only on a black patches (violet patches represent the obstacles).

因此，我需要帮助的事情是将机器人放置在迷宫的中心-我必须使用在此放置补丁"来完成它(...我在"stvori-agenta"过程中做了一些不同的操作)并将机器人站立的那个补丁标记为黑色.因此，之后我只能在黑色补丁上编写机器人运动的程序.

So, the thing i need help with is to position robot in the center of the labyrinth - i must do it with "patch-here" (...i did it little bit differently in procedure "stvori-agenta") and mark that patch on which robot stands as black. So, afterwards i could write procedures for robots movements only on a black patches.

这是代码:

breed [robots robot]
to crtaj-zidove  
ask patches with
[
  ( pxcor = max-pxcor) 
    or (pxcor = min-pxcor)
    or ( pycor = max-pycor)
     or (pycor = min-pycor) ]  
[ set pcolor violet]
end

to labirint
ask n-of 15 patches with [ pcolor != violet ] [
set pcolor violet]
end

to stvori-agenta 
set-default-shape robots "robot" 
ask patch 5 5 [ sprout-robots 1 ] 
ask turtles [          
set heading 0
set color grey      
]
end

to setup
clear-all
crtaj-zidove
labirint
stvori-agenta
end

推荐答案

这将使机器人将其站立的补丁变成黑色:

This will make the robot turn the patch it is standing on black:

ask robots [ set pcolor black ]

您说您必须使用patch-here.实际上这并不是必需的，因为海龟可以直接访问它们站立的补丁.但您也可以将其写为:

You say you must use patch-here. That isn't actually necessary, since turtles have direct access to the patches they are standing on. But you could also write it as:

ask robots [ ask patch-here [ set pcolor black ] ]

它做同样的事情.

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