breeds [ boys girls ]

to setup ;; executed once each time we press the SETUP button  
  ca  ;; clear all patches and turtles
  set-default-shape boys "boy-shape"
  create-boys boys-num  ;; create BOYS-NUM number of turtles of breed BOYS
                        ;; BOYS-NUM equals the current value of the BOYS-NUM slider
  set-default-shape girls "girl-shape"
  create-girls girls-num  ;; create GIRLS-NUM number of turtles of breed GIRLS
                          ;; GIRLS-NUM equals the current value of the GIRLS-NUM slider
  ask boys [  
    set color blue 
  ]

  ask girls [  
    set color red
  ]

  ask turtles [                     ;; includes both boys and girls
    setxy (random screen-size-x) 0  ;; disperse turtles along X axis
    set heading  0                  ;; point all turtles up (north)
  ]
end

to move-boys
  ask boys [    ;; ask all turtles of breed BOYS, 
    fd 1        ;; to move forward by 1
  ] 
end

to move-girls
  ask girls [   ;; ask all turtles of breed GIRLS, 
    fd 1        ;; to move forward by 1
  ] 
end

to kill-boys
  ask boys [    ;; ask all turtles of breed BOYS
    die         ;; to die
  ]  
end

to kill-girls
  ask girls [   ;; ask all turtles of breed GIRLS
    die         ;; to die
  ]
end


; This model was created as part of the project: CONNECTED MATHEMATICS:
; MAKING SENSE OF COMPLEX PHENOMENA THROUGH BUILDING OBJECT-BASED PARALLEL
; MODELS (OBPML)
; The project gratefully acknowledges the support of the National Science
; Foundation (Applications of Advanced Technologies Program) -- grant numbers
; RED #9552950 and REC #9632612.
; 
; Converted from StarLogoT to NetLogo, 2001
; Copyright 1999  by Uri Wilensky. All rights reserved.
; 
; Permission to use, copy, or modify this software and its documentation for
; educational and research purposes only and without fee is hereby granted,
; provided that this copyright notice and the original authors' names appear
; on all copies and supporting documentation. For any other uses of this
; software, in original or modified form, including but not limited to
; distribution in whole or in part, specific prior permission must be
; obtained from Uri Wilensky. These programs shall not be used, rewritten, or
; adapted as the basis of a commercial software or hardware product without
; first obtaining appropriate licenses from Uri Wilensky. We make no
; representations about the suitability of this software for any purpose. It
; is provided "as is" without express or implied warranty.
@#$#@#$#@
GRAPHICS-WINDOW
270
18
660
408
6
6
30.0
1
10
0
0

CC-WINDOW
9
278
261
415
Command Center

BUTTON
138
206
255
244
Girls Disappear
kill-girls
NIL
1
T
OBSERVER

BUTTON
12
206
122
244
Boys Disappear
kill-boys
NIL
1
T
OBSERVER

BUTTON
138
157
227
195
NIL
move-girls
NIL
1
T
OBSERVER

BUTTON
43
157
122
196
NIL
move-boys
NIL
1
T
OBSERVER

BUTTON
27
25
219
61
setup
setup
NIL
1
T
OBSERVER

SLIDER
6
118
243
151
girls-num
girls-num
0
5
5
1
1
NIL

SLIDER
5
77
243
110
boys-num
boys-num
0
5
5
1
1
NIL

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WHAT IS IT?
-----------
This code example shows how to create and control groups of turtles, i.e. breeds. 

It also shows how to set the default shape of a breed, so all turtles with that breed will have that shape.

If you want to create your own shapes, press the SHAPES button on the right-hand side of the toolbar, click the "New" button, and draw your own shape!
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default
true
0
Polygon -7566196 true true 150 5 40 250 150 205 260 250

boy-shape
false
0
Circle -7566196 true true 107 15 84
Line -7566196 true 150 75 150 224
Line -7566196 true 150 150 74 135
Line -7566196 true 150 149 224 135
Line -7566196 true 150 224 195 284
Line -7566196 true 150 226 105 284

girl-shape
false
0
Circle -7566196 true true 107 15 84
Line -7566196 true 150 75 150 224
Line -7566196 true 150 150 74 135
Line -7566196 true 150 149 224 135
Line -7566196 true 150 224 195 284
Line -7566196 true 150 226 105 284
Polygon -7566196 true true 150 99 105 267 195 267

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NetLogo 1.1
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