Car-Sharing.nlogo

globals
[
  car-sharing-type ;round, floating, station
  rides

  x
  xx
]

breed[ people person ]
people-own
[
  type-driver ;low medium high (how much they use a car)
  house ;patch

  location ;house, out, traveling
  traveling ;true false
  destination ;patch
  selected-car ;car
  in-car ;true false

  stalled-time
]

breed[ cars car ]
cars-own
[
  home-station ;patch

  full ;true false
  traveler ;person

  traveling ;true false
  destination ;patch
  stalled-time ;integer
]

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;PROGRAMS START;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to move-toward [y z] ;person procedure
  face y
  fd .5

  if self-driving and z = true
  [
    ifelse distance y < 30
    [
      move-to y
    ]
    [
      fd 3
    ]
  ]

  ;if [breed] of y = cars
  ;[

end

to drive-toward [y] ;car procedure
  face y
  fd 5
end

to-report triangular[a b c]  ;; a=min, b=max, c=mode
  let i random-float 1
  let f ( c - a ) / ( b - a )
  ifelse i < f
  [ report ( a + sqrt ( i * ( b - a ) * ( c - a ))) ]
  [ report ( b - sqrt (( 1 - i ) * ( b - a ) * ( c - a ))) ]
end

to stall ;turtle procedure
  if pcolor = blue
  [
    set stalled-time triangular 0 600 480
  ]
  if pcolor = cyan
  [
    set stalled-time triangular 0 360 120
  ]
  if pcolor = gray
  [
    ifelse strategy = "fractional"
    [
      if type-driver = "low"
      [
        set stalled-time triangular 0 1440 1440
      ]
      if type-driver = "medium"
      [
        set stalled-time triangular 0 1440 1440
      ]
      if type-driver = "high"
      [
        set stalled-time triangular 0 1440 1440
      ]
    ]
    [
      if type-driver = "low"
      [
        set stalled-time triangular 0 1440 1410
      ]
      if type-driver = "medium"
      [
        set stalled-time triangular 0 1440 1380
      ]
      if type-driver = "high"
      [
        set stalled-time triangular 0 1440 1350
      ]
    ]
  ]
end

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;TOOLS END;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to setup-cars
  set-default-shape cars "car"
  create-cars car-population
  [
    move-to one-of patches with [ pcolor = yellow ]
    set color red
    set home-station patch-here
    set full false
    set traveler nobody
    set traveling false
    set destination nobody
    set stalled-time 0
  ]
end

to new-person ;person procedure
  move-to one-of patches with [ pcolor = grey ]
  set color black
  set house patch-here
  set location "home"
  set traveling false
  set destination nobody
  set selected-car nobody
  set in-car false
  set stalled-time 0
end

to setup-people
  set-default-shape people "person"
  create-people low-car-users
  [
    set type-driver "low"
    new-person
  ]
  create-people medium-car-users
  [
    set type-driver "medium"
    new-person
  ]
  create-people high-car-users
  [
    set type-driver "high"
    new-person
  ]
end

to setup-stations
  ask patches with [ pcolor != black and pxcor mod 10 = 0  and pycor mod 10 = 0 ]
  [
    set pcolor yellow
  ]
end

to setup-layout
  if city = "Riverside"
  [
    import-pcolors-rgb "C:/Users/ClearSpear/Documents/Code/Netlogo/car-sharing/riversidenetlogo.png"
  ]
  if city = "Knoxville"
  [
    import-pcolors-rgb "C:/Users/ClearSpear/Documents/Code/Netlogo/car-sharing/knoxvillenetlogo.png"
  ]
  if city = "Richmond"
  [
    import-pcolors-rgb "C:/Users/ClearSpear/Documents/Code/Netlogo/car-sharing/richmondnetlogo.png"
  ]
  if city = "Poughkeepsie"
  [
    import-pcolors-rgb "C:/Users/ClearSpear/Documents/Code/Netlogo/car-sharing/poughkeepsienetlogo.png"
  ]
  ask patches with [ pcolor = [0 0 255] ]
  [
    set pcolor blue
  ]
  ask patches with [ pcolor = [153 217 234] ]
  [
    set pcolor cyan
  ]
  ask patches with [ pcolor = [127 127 127] ]
  [
    set pcolor gray
  ]
  ask patches with [ pcolor = [0 0 0] ]
  [
    set pcolor black
  ]

  setup-stations
end

to setup
  clear-all
  set rides 0
  setup-layout
  setup-cars
  setup-people
  reset-ticks
end

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;SETUP-GO DIVIDE;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to run-round
  ifelse distance destination < 5
  [
    move-to destination
    ifelse [ pcolor ] of patch-here != yellow
    [
      set destination home-station
      stall
    ]
    [
      set rides rides + 1

      set traveling false
      set full false
      set destination nobody
      ask traveler
      [
        set destination house
        set in-car false
        set location "traveling"
        set traveling true
        set selected-car nobody
      ]
      set traveler nobody
    ]
  ]
  [
    drive-toward destination
  ]
end

to run-floating
  ifelse distance destination < 5
  [
    move-to destination
    ifelse [ pcolor ] of patch-here != yellow
    [
      set rides rides + 1
      set full false
      set destination min-one-of patches with [ pcolor = yellow ] [ distance myself ]
      ask traveler
      [
        set in-car false
        set selected-car nobody
      ]
      set traveler nobody
    ]
    [
      set traveling false
      set stalled-time random 1000
    ]
  ]
  [
    drive-toward destination
  ]
end

to run-station
  ifelse distance destination < 5
  [
    set rides rides + 1
    move-to destination
    set traveling false
    set full false
    ask traveler
    [
      set in-car false
      set selected-car nobody
    ]
    set traveler nobody
    set destination nobody
  ]
  [
    drive-toward destination
  ]
end

to run-cars
  ask cars
  [
    ifelse stalled-time < 0
    [
      if traveling
      [
        if strategy = "round"
        [
          run-round
        ]
        if strategy = "floating"
        [
          run-floating
        ]
        if strategy = "station"
        [
          run-station
        ]
        if strategy = "fractional"
        [
          run-round
        ]
      ]
    ]
    [
      set stalled-time stalled-time - 1
    ]
  ]
end

;;;;;;;;;;;;;;;;;cars done running ;;;;;;;;;;;;;;;;;;;;

to-report find-car ;person procedure
  report min-one-of cars with [ full = false ] [ distance myself ]
end

to choose-destination ;person procedure
  ifelse location = "out"
  [
    set destination house
  ]
  [ ;!!! change from ifelse to if and if
    set destination one-of patches with [ pcolor = blue or pcolor = cyan ]
  ]
  set traveling true
  set location "traveling"
end

to check-arrival ;person procedure
  if patch-here = destination
  [
    ifelse patch-here = house
    [
      set location "house"
    ]
    [
      set location "out"
    ]
    set traveling false
    set destination nobody

    stall
  ]
end

to run-people
  ask people
  [
    ifelse stalled-time <= 0
    [
      ;choose to start traveling or walk towards your destination
      ifelse traveling = false
      [
        choose-destination
      ]
      [
        ifelse in-car = true
        [
          move-to selected-car
          if [ traveler ] of selected-car = nobody
          [
            set in-car false
            set selected-car nobody
            if strategy = "round" or strategy = "fractional"
            [
              set destination house
            ]
          ]
        ]
        [
          ;if close car, choose a car and take it to the station closest to the destination, then leave it and walk to destination from there
          if distance destination > 10 and find-car != nobody
          [
            ifelse strategy = "round" or strategy = "fractional"
            [
              if destination != house
              [
                if distance find-car / distance destination < ( random 5 ) / 10
                [
                  set selected-car find-car

                ]
              ]
            ]
            [
              if distance find-car / distance destination < ( random 5 ) / 10
              [
                set selected-car find-car

              ]
            ]
          ]

          ;going to a car or not
          ifelse selected-car = nobody
          [
            move-toward destination false
            check-arrival
          ]
          [
            ifelse [ traveler ] of selected-car = nobody or [ traveler ] of selected-car = self
            [
              move-toward selected-car true
              if distance selected-car < 5
              [
                move-to selected-car
                set in-car true
                set x self
                ask selected-car
                [
                  set full true
                  set traveler x

                  ;STRATEGY DIFFERENCE
                  if strategy = "station"
                  [
                    set destination min-one-of patches with [ pcolor = yellow ] [ distance [ destination ] of x ]
                  ]
                  if strategy = "round" or strategy = "floating" or strategy = "fractional"
                  [
                    set destination [ destination ] of x
                  ]

                  set traveling true
                ]
              ]
            ]
            [
              set selected-car nobody
            ]
          ]
        ]

      ]
    ]
    [
      set stalled-time stalled-time - 1
    ]
  ]
end

;;;;;;;;;;;;;;;go;;;;;;;;;;;;;;;;;;;

to go
  run-cars
  run-people

  if ticks > 10080
  [
    stop
  ]
  tick
end
@#$#@#$#@
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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)
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@#$#@#$#@
NetLogo 5.3
@#$#@#$#@
@#$#@#$#@
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@#$#@#$#@
@#$#@#$#@
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