maketrees_3.nlogo

;; Version 2
;; Introduces suitability of patches for initial seedings and biomass growth
;; Adds competition (ver3??)
;;
;; Version 3
;; Introduces mortality as increase probability > 50 years
;; Include very low mortality for yonger trees

patches-own
[
  suitability
]

breed [trees tree]
breed [people person]

trees-own
[
  energy
  height
  age
  mortality
  biomass
  canopy
]

to setup
  ca

  ask patches [
    set suitability random-float 1
    set pcolor scale-color gray suitability 0 1
  ]

  ask patches[
    if random-float 1 < suitability [
      sprout-trees 1 [
        set age 0
        set height 0.1
        set shape "tree"
        set size height
        set canopy 0.01
        set mortality 0.001
      ]
    ]
  ]

  reset-ticks
end

to go
  if ticks > 120 [
    stop
  ]
  ask trees
  [
    grow-one-year
    competition
    death

  ]
  tick
end

to grow-one-year
  set age age + 1
  if age < 100 [
    set height height + 0.1
    set biomass biomass + random-float [suitability] of patch-here
    set canopy (age / 100) * 10
  ]
  if age > 100 [
    set mortality (age - 100) / 100
    print mortality
  ]
  set size height
end

to competition
  ask turtles in-radius canopy
  [
    if biomass < [biomass] of myself
    [
      die
    ]
  ]

end

to death
  if random-float 1 < mortality
  [
    print "I'm dying here"
    die
  ]
end
@#$#@#$#@
GRAPHICS-WINDOW
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ticks
30.0

BUTTON
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NIL
setup
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T
OBSERVER
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BUTTON
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T
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OBSERVER
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BUTTON
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## WHAT IS IT?

(a general understanding of what the model is trying to show or explain)

## HOW IT WORKS

(what rules the agents use to create the overall behavior of the model)

## HOW TO USE IT

(how to use the model, including a description of each of the items in the Interface tab)

## THINGS TO NOTICE

(suggested things for the user to notice while running the model)

## THINGS TO TRY

(suggested things for the user to try to do (move sliders, switches, etc.) with the model)

## EXTENDING THE MODEL

(suggested things to add or change in the Code tab to make the model more complicated, detailed, accurate, etc.)

## NETLOGO FEATURES

(interesting or unusual features of NetLogo that the model uses, particularly in the Code tab; or where workarounds were needed for missing features)

## RELATED MODELS

(models in the NetLogo Models Library and elsewhere which are of related interest)

## CREDITS AND REFERENCES

(a reference to the model's URL on the web if it has one, as well as any other necessary credits, citations, and links)
@#$#@#$#@
default
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airplane
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arrow
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box
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Polygon -7500403 true true 150 135 15 75 150 15 285 75
Polygon -7500403 true true 15 75 15 225 150 285 150 135
Line -16777216 false 150 285 150 135
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bug
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butterfly
true
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car
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circle
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circle 2
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cow
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cylinder
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face happy
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face neutral
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face sad
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fish
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flag
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Polygon -7500403 true true 90 150 270 90 90 30
Line -7500403 true 75 135 90 135
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flower
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Circle -7500403 true true 85 40 38
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house
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line
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line half
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pentagon
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person
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Rectangle -7500403 true true 127 79 172 94
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plant
false
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Polygon -7500403 true true 135 255 90 210 45 195 75 255 135 285
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Polygon -7500403 true true 165 105 165 135 225 105 255 45 210 60
Polygon -7500403 true true 135 90 120 45 150 15 180 45 165 90

sheep
false
15
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Circle -1 true true 70 65 162
Circle -1 true true 150 105 120
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Circle -7500403 true false 214 72 67
Rectangle -1 true true 164 223 179 298
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square
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square 2
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star
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target
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tree
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Rectangle -6459832 true false 120 195 180 300
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Circle -7500403 true true 45 90 120
Circle -7500403 true true 104 74 152

triangle
false
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triangle 2
false
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Polygon -16777216 true false 151 99 225 223 75 224

truck
false
0
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Polygon -7500403 true true 296 193 296 150 259 134 244 104 208 104 207 194
Rectangle -1 true false 195 60 195 105
Polygon -16777216 true false 238 112 252 141 219 141 218 112
Circle -16777216 true false 234 174 42
Rectangle -7500403 true true 181 185 214 194
Circle -16777216 true false 144 174 42
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Circle -7500403 false true 24 174 42
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turtle
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0
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Polygon -10899396 true false 132 85 134 64 107 51 108 17 150 2 192 18 192 52 169 65 172 87
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Polygon -7500403 true true 119 75 179 75 209 101 224 135 220 225 175 261 128 261 81 224 74 135 88 99

wheel
false
0
Circle -7500403 true true 3 3 294
Circle -16777216 true false 30 30 240
Line -7500403 true 150 285 150 15
Line -7500403 true 15 150 285 150
Circle -7500403 true true 120 120 60
Line -7500403 true 216 40 79 269
Line -7500403 true 40 84 269 221
Line -7500403 true 40 216 269 79
Line -7500403 true 84 40 221 269

wolf
false
0
Polygon -16777216 true false 253 133 245 131 245 133
Polygon -7500403 true true 2 194 13 197 30 191 38 193 38 205 20 226 20 257 27 265 38 266 40 260 31 253 31 230 60 206 68 198 75 209 66 228 65 243 82 261 84 268 100 267 103 261 77 239 79 231 100 207 98 196 119 201 143 202 160 195 166 210 172 213 173 238 167 251 160 248 154 265 169 264 178 247 186 240 198 260 200 271 217 271 219 262 207 258 195 230 192 198 210 184 227 164 242 144 259 145 284 151 277 141 293 140 299 134 297 127 273 119 270 105
Polygon -7500403 true true -1 195 14 180 36 166 40 153 53 140 82 131 134 133 159 126 188 115 227 108 236 102 238 98 268 86 269 92 281 87 269 103 269 113

x
false
0
Polygon -7500403 true true 270 75 225 30 30 225 75 270
Polygon -7500403 true true 30 75 75 30 270 225 225 270
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NetLogo 6.1.1
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default
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0.0 1 1.0 0.0
0.2 0 0.0 1.0
link direction
true
0
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Line -7500403 true 150 150 210 180
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1
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