mona 1,2,3,4,5,11

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mona adawi (Author)

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Click to Run Model

to setup
  clear-all
  create-turtles 100
   ask turtle 3 [ pendown]
  ask turtles [ setxy random-xcor random-ycor ]
  create-turtles floor (world-width / 3) [
    set xcor 1 + who * 3  ;; space out the turtles in order by who number
    set color color - 2   ;; darker
    set size 1 + random-float 3
    set heading 0
    set label who
  ]
end 

to setup-patches
ask patches
  [ ifelse pxcor > 0
      [ set pcolor blue ]
      [ set pcolor yellow ] ]
;; the left half of the world turns yellow and
;; the right half turns blue
end 

to go-random
  ask turtles
    [ fd 1 ]
  tick
end 

to go
 ;; move-patches
  move-turtles
end 

;;to move-patches
  ;;ask patches [
    
    ;;  ]
;;end
;;show sum [count turtles-here] of neighbors
  ;; prints the total number of turtles on the eight
  ;; patches around this turtle or patch
;;show count turtles-on neighbors
  ;; a shorter way to say the same thing
;;ask neighbors4 [ set pcolor red ]
  ;; turns the four neighboring patches red

to move-turtles
  ask turtles [
    right random 360
    forward 1
  ]
end 
globals [halfedge]

to setup-corner
  ca                                              ;; clear everything
  ask patches[
    ;; if patches are between (0,0) to (0,edge)...
    if ( pxcor = 0 and pycor >= 0 and pycor <= edge )
      [set pcolor red]                                 ;; ... draws left edge in red
    ;; if patches are between (edge,0) to (edge,edge)...
    if ( pxcor = edge and pycor >= 0 and pycor <= edge )
      [set pcolor red]                                 ;; ... draws right edge in red
    ;; if patches are between (0,0) to (edge,0)...
    if ( pycor = 0 and pxcor >= 0 and pxcor <= edge )
      [set pcolor red]                                 ;; ... draws bottom edge in red
    ;; if patches are between (0,edge) to (edge,edge)...
    if ( pycor = edge and pxcor >= 0 and pxcor <= edge )
      [set pcolor red]                                 ;; ... draws upper edge in red
    ]
end 


;; setup procedure for case where point (0,0) is in the center of Box

to setup-center
  ca                                              ;; clear everything
  ;; set halfedge as edge divided by two. in case edge is an odd number,
  ;; halfedge get the integer value of the division.
  set halfedge int (edge / 2)
  ask patches[
    ;; if patches are between (-halfedge,-halfedge) to (-halfedge,halfedge)...
    if (pxcor = (- halfedge) and pycor >= (- halfedge) and pycor <= (0 + halfedge) )
      [set pcolor blue]                                ;; ... draws left edge in blue
    ;; if patches are between (halfedge,-halfedge) to (halfedge,halfedge)...
    if ( pxcor = (0 + halfedge) and pycor >= (- halfedge) and pycor <= (0 + halfedge) )
      [set pcolor blue]                                ;; ... draws right edge in blue
    ;; if patches are between (-halfedge,-halfedge) to (halfedge,-halfedge)...
    if ( pycor = (- halfedge) and pxcor >= (- halfedge) and pxcor <= (0 + halfedge) )
      [set pcolor blue]                                ;; ... draws bottom edge in blue
    ;; if patches are between (-halfedge,halfedge) to (halfedge,halfedge)...
    if ( pycor = (0 + halfedge) and pxcor >= (- halfedge) and pxcor <= (0 + halfedge) )
      [set pcolor blue]                                ;; ... draws upper edge in blue
    ]
end

There is only one version of this model, created about 14 years ago by mona adawi.

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