ossim.nlogo

breed [ users user ]
breed [ repos repo ]

globals [
  total-commits
  commits-this-round
]


;     AGENT ATTRIBUTES
; ------------------------

; user
; attributes of each user
users-own [
  u-age ; number of ticks in which this link existed
  u-category ; one of (1) generalist, (2) specialist, (3) networker, (4) casual
  u-commits ; total number of commits by this user
  u-commits-this-round ; number of commits in the current tick by this user
]

; repo
; attributes of each repo
repos-own [
  r-age ; numbber of ticks in which this link existed
  r-commits ; total number of commits to this repo
  r-commits-this-round ; number of commits in the current tick to this repo
]

; user <-> repo
; attributes of each link between a user and a repo
links-own [
  l-age ; numbber of ticks in which this link existed
  l-commits ; total number of commits by the user to the repo
  l-commits-this-round ; number of commits in the current tick by the user to the repo
]



;     CORE FUNCTIONS
; ----------------------

to setup
  
  ;; (for this model to work with NetLogo's new plotting features,
  ;; __clear-all-and-reset-ticks should be replaced with clear-all at
  ;; the beginning of your setup procedure and reset-ticks at the end
  ;; of the procedure.)
  __clear-all-and-reset-ticks

  set-default-shape users "person"
  set-default-shape repos "box"

  ; reset gobal variables
  set total-commits 0
  set commits-this-round 0

  ; add initiali users
  add-users nInitialUsers

  reset-ticks
end

to go
  init-round
  tick
  user-actions
end



;     SUB FUNCTIONS
; ---------------------

; 
to init-round
  set total-commits total-commits + commits-this-round
  set commits-this-round 0
  ask users [
    set u-commits u-commits + u-commits-this-round
    set u-commits-this-round 0
    set u-age u-age + 1
  ]
  ask repos [
    set r-commits r-commits + r-commits-this-round
    set r-commits-this-round 0
    set r-age r-age + 1
  ]
  ask links [
    set l-commits l-commits + l-commits-this-round
    set l-commits-this-round 0
    set l-age l-age + 1
  ]
end

; perform action of all users
to user-actions
  ask users [
    let user self
    let u-repos count my-links
    let create-repo-prob 0
    let join-repo-prob 0

    if u-category = "generalist" [
      ; each repo -> contribute again?
      ask link-neighbors [
        let repo self
        ; formula for generalist to contribute again (in % points)
        if random(100) < 20 - 1 * u-repos + 0.1 * r-commits + 0.01 * total-commits [
          user-commits-to-repo user repo
        ]
      ]

      ; formula for generalist to create a new repo (in % points)
      set create-repo-prob 20 - 5 * u-repos - 0.01 * total-repos + 0.01 * total-commits

      ; formula for generalist to join a new repo (in % points)
      set join-repo-prob 20 - 5 * u-repos + 0.01 * total-repos
    ]

    if u-category = "specialist" [
      ; each repo -> contribute again?
      ask link-neighbors [
        let repo self
        ; formula for specialist to contribute again (in % points)
        if random(100) < 40 - 2 * u-repos + 0.2 * r-commits + 0.02 * total-commits [
          user-commits-to-repo user repo
        ]
      ]

      ; formula for specialist to create a new repo (in % points)
      set create-repo-prob 20 - 5 * u-repos - 0.01 * total-repos + 0.01 * total-commits

      ; formula for specialist to join a new repo (in % points)
      set join-repo-prob 5 - 1.25 * u-repos + 0.01 * total-repos
    ]

    if u-category = "networker" [
      ; each repo -> contribute again?
      ask link-neighbors [
        let repo self
        ; formula for networker to contribute again (in % points)
        if random(100) < 10 - 0.5 * u-repos + 0.05 * r-commits + 0.005 * total-commits [
          user-commits-to-repo user repo
        ]
      ]

      ; formula for networker to create a new repo (in % points)
      set create-repo-prob 10 - 5 * u-repos - 0.01 * total-repos + 0.01 * total-commits

      ; formula for networker to join a new repo (in % points)
      set join-repo-prob 40 - 5 * u-repos + 0.01 * total-repos
    ]

    if u-category = "casual" [
      ; each repo -> contribute again?
      ask link-neighbors [
        let repo self
        ; formula for casual user to contribute again (in % points)
        if random(100) < 5 - 0.25 * u-repos + 0.1 * r-commits + 0.01 * total-commits [
          user-commits-to-repo user repo
        ]
      ]

      ; formula for casual user to create a new repo (in % points)
      set create-repo-prob 1 - 0.25 * u-repos - 0.01 * total-repos + 0.01 * total-commits

      ; formula for casual user to join a new repo (in % points)
      set join-repo-prob 5 - 1.25 * u-repos + 0.01 * total-repos
    ]

    if random(100) < create-repo-prob [
      user-creates-repo user
    ]

    if random(100) < join-repo-prob [
      user-joins-random-repo user
    ]
  ]
end


;     HELPER FUNCTIONS
; ------------------------

; create and initialize new users
to add-users [ number ]
  ; probabilities: 5% generalist, 15% specialist, 20% networker, 60% casual
  let categories [ "generalist" "specialist" "specialist" "specialist" "networker" "networker" "networker" "networker" "casual" "casual" "casual" "casual" "casual" "casual" "casual" "casual" "casual" "casual" "casual" "casual"]

  create-users number [
    ; initialize each new user
    setxy random-pxcor random-pycor

    ; pick a category
    set u-category one-of categories

    set u-age 0
    set u-commits 0
    set u-commits-this-round 0
  ]
end

to add-repo-of [ u ]
  hatch-repos 1 [
    ; initialize each new repo
    setxy random-pxcor random-pycor
    set r-age 0
    set r-commits 0
    set r-commits-this-round 0
    create-link-with u [
      set l-age 0
      set l-commits 0
      set l-commits-this-round 1
    ]
  ]
end

; number of all repos
to-report total-repos
  report count repos
end

to user-creates-repo [ u ]
  add-repo-of u
end

to user-joins-repo [ u r ]
  user-commits-to-repo u r
end

to user-joins-random-repo [ u ]
  user-joins-repo u (one-of repos)
end

to user-commits-to-repo [ u r ]
  ask u [
    ifelse link-with r = nobody [
      create-link-with r [
        set l-commits-this-round 1
      ]
    ] [
      ask link-with r [
        set l-commits-this-round l-commits-this-round + 1
      ]
    ]
    set u-commits-this-round u-commits-this-round + 1
  ]
  ask r [
    set r-commits-this-round r-commits-this-round + 1
  ]
  set commits-this-round commits-this-round + 1
end
@#$#@#$#@
GRAPHICS-WINDOW
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ticks
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SLIDER
33
84
205
117
nInitialUsers
nInitialUsers
0
100
10
1
1
Users
HORIZONTAL

BUTTON
34
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NIL
setup
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T
OBSERVER
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BUTTON
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go once
go
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OBSERVER
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BUTTON
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NIL
go
T
1
T
OBSERVER
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MONITOR
383
100
457
145
Generalists
count users with [ u-category = \"generalist\" ]
17
1
11

MONITOR
457
100
527
145
Specialists
count users with [ u-category = \"specialist\" ]
17
1
11

MONITOR
383
145
457
190
Networkers
count users with [ u-category = \"networker\" ]
17
1
11

MONITOR
457
145
527
190
Casual users
count users with [ u-category = \"casual\" ]
17
1
11

MONITOR
384
223
459
268
Repositories
count repos
17
1
11

MONITOR
459
223
540
268
Total Commits
sum [ r-commits ] of repos
17
1
11

@#$#@#$#@
## 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)
@#$#@#$#@
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airplane
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arrow
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flag
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flower
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leaf
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person
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target
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truck
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wheel
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x
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@#$#@#$#@
NetLogo 5.0.4
@#$#@#$#@
@#$#@#$#@
@#$#@#$#@
@#$#@#$#@
@#$#@#$#@
default
0.0
-0.2 0 1.0 0.0
0.0 1 1.0 0.0
0.2 0 1.0 0.0
link direction
true
0
Line -7500403 true 150 150 90 180
Line -7500403 true 150 150 210 180

@#$#@#$#@
0
@#$#@#$#@