Info tab incorrectly describes movement in Segregation model #378

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1. ToonTalk commented on Jan 17, 2019

   

   ToonTalk

   on Jan 17, 2019

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   And why this complexity? Could just jump to any empty patch...
2. Falnesio commented on Jan 17, 2019

   

   Falnesio

   on Jan 17, 2019

   Last edited by Falnesio

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   I think the info tab is correct. Don't know why not to just jump to any empty patch (EDIT: could be to make turtles remain close to their neighborhood, maybe mimic house hunting).

   ; run the model for one tick
   to go
     if all? turtles [ happy? ] [ stop ]
     move-unhappy-turtles <---------------------this
     update-turtles
     update-globals
     tick
   end
   
   ; unhappy turtles try a new spot
   to move-unhappy-turtles
     ask turtles with [ not happy? ]
       [ find-new-spot ] <------------------------leads to this
   end
   
   to update-turtles
     ask turtles [
       ; in next two lines, we use "neighbors" to test the eight patches
       ; surrounding the current patch
       set similar-nearby count (turtles-on neighbors)  with [ color = [ color ] of myself ]
       set other-nearby count (turtles-on neighbors) with [ color != [ color ] of myself ]
       set total-nearby similar-nearby + other-nearby
       set happy? similar-nearby >= (%-similar-wanted * total-nearby / 100) <-------------if this shows that the turtle is unhappy on the last tick
       ; add visualization here
       if visualization = "old" [ set shape "default" set size 1.3 ]
       if visualization = "square-x" [
         ifelse happy? [ set shape "square" ] [ set shape "X" ]
       ]
     ]
   end
   
3. ToonTalk commented on Jan 18, 2019

   

   ToonTalk

   on Jan 18, 2019

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   I guess this depends on what one thinks "nearby" means. It can go fd up to 10 steps in a 51x51 space for each attempt to find a free space. And with the default density of 95% it will do this on average 10 times before finding an empty space.