.lrt-2.tmp.nlogo

globals [
  num-stations ; The number of all LRT-2 stations
  station-x-list ; The list of the x-coordinates of all stations
  westbound ; Sets the westbound coordinates
  eastbound ; Set the eastbound coordinates
]

breed [trains train]
breed [passengers passenger]

trains-own [
  ; Mechanical variables
  train-speed ; The real-world speed of the train in km/h
  acceleration-factor ; Responsible for accelerating and decelerating the train

  ; Station state variables
  wait-remaining ; Each train waits for this amount of time in a station
  has-entered-station ; Indicates whether a train has already entered a station or not
  has-transferred ; Indicates whether a train in a terminal station has transferred or not
]

passengers-own [
  is-on-train ; Indicates whether the passenger is on a train or not
]

; Set everything up
to setup
  clear-all

  setup-globals

  setup-infrastructure
  setup-trains

  reset-ticks
end

; Set the global variables
to setup-globals
  set num-stations 11
  set station-x-list [0 44 102 158 210 248 293 342 401 441 523]
  set westbound 1
  set eastbound 0

  ask trains [
    set has-transferred 0
    set has-entered-station 0
  ]

  ask passengers [
    set is-on-train 0
  ]
end

; Set the infrastructure
to setup-infrastructure
  draw-line
  draw-stations
end

; Draw the line
to draw-line
  ask patches [
    if pycor = westbound or pycor = eastbound [
      set pcolor violet
    ]
  ]
end

; Draw the stations
to draw-stations
  let station-label-list ["Recto" "Legarda" "Pureza" "V. Mapa" "J. Ruiz" "Gilmore" "Betty Go-Belmonte" "Araneta Center-Cubao" "Anonas" "Katipunan" "Santolan"]
  let station-index-list range num-stations

  foreach station-index-list [
    index -> let station-index index

    ; Get the x coordinate of the station
    let station-x item station-index station-x-list

    ; Draw the stations
    ask patch station-x eastbound [
      set pcolor yellow
    ]

    ask patch station-x westbound [
      set pcolor yellow
    ]

    ; Get the label of the station
    let station-label item station-index station-label-list

    ask patch (station-x + 6) (eastbound - 3) [
      set plabel-color white
      set plabel station-label
    ]
  ]
end

; Set the trains
to setup-trains
  ; Create one train at Santolan station heading east
  create-trains 1 [
    setxy last station-x-list eastbound
    set shape "train"
    set size 3
  ]
end

; Run the simulation
to start
  generate-passengers

  update-trains
  update-passengers

  tick
end

; Generate random passengers at the stations
to generate-passengers
  let station-index-list range num-stations

  foreach station-index-list [
    index -> let station-index index

    ; Get the x coordinate of the station
    let station-x item station-index station-x-list

    ; There's a 5% chance per tick that a passenger will be generated there
    if member? random 100 [1 2 3 4 5] [
      create-passengers 1 [
        setxy station-x (eastbound - 1)
        set shape "person"
        set size 1
      ]
    ]

    if member? random 100 [1 2 3 4 5] [
      create-passengers 1 [
        setxy station-x (westbound + 1)
        set shape "person"
        set size 1
      ]
    ]
  ]
end

; Update the trains
to update-trains
  ask trains [
    ; If the train is in a station
    ifelse member? xcor station-x-list [
      ;print "Station"

      ; Mark the station
      set pcolor red

      ; If the train is a terminal station
      ifelse xcor = first station-x-list or xcor = last station-x-list [
        ; Take note of the fact that the train has already entered the terminal station
        if has-entered-station = 0 [
          ; Double wait times are required (as the train will spend twice the time in a terminal station)
          set wait-remaining waiting-time * 2

          set has-entered-station 1
        ]

        ; Keep alighting passengers until wait time halves
        ifelse wait-remaining > waiting-time [
          ; Start decrementing its wait time
          set wait-remaining wait-remaining - 1

          ;print "Waiting..."
        ] [
          ; Wait time has ran out
          ; Wait until opposite platform is free

          ; Transfer to opposite platform if it hasn't already
          if has-transferred = 0 [
            ; Unmark the current station
            set pcolor yellow

            ifelse ycor = eastbound [
              set ycor westbound
              set heading 0
            ] [
              set ycor eastbound
              set heading 180
            ]

            set has-transferred 1
          ]

          ; Keep boarding passengers until wait time runs out
          ifelse wait-remaining > 0 [
            ; Start decrementing its wait time again
            set wait-remaining wait-remaining - 1
          ] [
            ; Unmark the current station
            set pcolor yellow

            ; Done waiting, proceed to next station
            move-train
          ]
        ]
      ] [
        ; If the train is not a terminal station
        ; Take note of the fact that the train has already entered the station
        if has-entered-station = 0 [
          ; Set wait time
          set wait-remaining waiting-time

          set has-entered-station 1
        ]

        ; Keep alighting and boarding passeners until wait time runs out
        ifelse wait-remaining > 0 [
          ; Start decrementing its waiting time
          set wait-remaining wait-remaining - 1

          ; Alight passengers
          ; Board passengers
        ] [
          ; Unmark the current station
          set pcolor yellow

          ; Done waiting, proceed to next station
          move-train
        ]
      ]
    ] [
      ; If the train is not in a station
      ; Proceed to the next station
      move-train
    ]
  ]
end

; Move the train taking into account to its direction
to move-train
  ; Set the real-world size of each patch
  let real-patch-size 24

  ; Set the train speed in km/h
  let train-speed-kmh 60

  ; Compute the train speed in m/s
  let train-speed-ms (train-speed-kmh) * (1 / 60) * (1 / 60) * 1000

  ; Compute the simulated speed (real-world meters cleared per patch)
  let simulated-speed train-speed-ms / real-patch-size

  ; Reset pertinent station state checking variables
  set has-transferred 0
  set has-entered-station 0

  ; If the train is on an eastbound line
  ifelse ycor = eastbound [
    ; If a station is just behind, accelerate
    ; If a station is three train lengths ahead, decelerate

    ; Go east
    ; If the next patch is a station, check if it is occupied
    ; If it is, then avoid moving
    if not any? trains-on patch-at headway 0 [
      ask passengers [
        if any? passengers-on patch-here [
          set xcor ([xcor] of myself + 1)
        ]
      ]

      set xcor xcor + 1 ; simulated-speed
      set heading 180
    ]

    ;print "Heading east"
  ] [
    ; Otherwise, go west
    ; If the next patch is a station, check if it is occupied
    ; If it is, then avoid moving
    if not any? trains-on patch-at (-(headway)) 0 [


      set xcor xcor - 1 ; simulated-speed
      set heading 0
    ]

    ;print "Heading west"
  ]

  ; Set mechanical variables
  ;set acceleration-factor
  ;set train-speed train-speed-kmh
end

; Update the passengers
to update-passengers
  ask passengers [
    ; If the passenger is in a station and is not on a train
    (ifelse member? xcor station-x-list and is-on-train = 0 [
      ; If there is an eastbound train in the station, get in
      if any? trains-on patch-at 0 -1 [
        set ycor eastbound
        set is-on-train 1
      ]

      ; If there is a westbound train in the station, get in
      if any? trains-on patch-at 0 1 [
        set ycor westbound
        set is-on-train 1
      ]
    ] member? xcor station-x-list and is-on-train = 1 [
      ; If the passenger is in a station and is on a train
      ; The passenger has a 25% chance of getting off
      if random 3 = 0 [
        die
      ]
    ] [
    ])
  ]
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 6.1.1
@#$#@#$#@
@#$#@#$#@
@#$#@#$#@
@#$#@#$#@
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@#$#@#$#@
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