Fire(greek version)

No preview image

1 collaborator

Default-person Katerina Benisi (Author)

Tags

(This model has yet to be categorized with any tags)
Visible to everyone | Changeable by everyone
Model was written in NetLogo 6.3.0 • Viewed 88 times • Downloaded 8 times • Run 0 times
Download the 'Fire(greek version)' modelDownload this modelEmbed this model

Do you have questions or comments about this model? Ask them here! (You'll first need to log in.)


Info tab cannot be displayed because of an encoding error

Comments and Questions

Please start the discussion about this model! (You'll first need to log in.)

Click to Run Model

globals [
  initial-trees
  burned-trees
  ;; how many trees (green patches) we started with
]
breed [fires fire]    ;; bright red turtles -- the leading edge of the fire
breed [embers ember]

to setup
  clear-all
  ;; make some green trees
  ask patches with [(random-float 100) < ΠΥΚΝΟΤΗΤΑ]
    [ set pcolor green ]
    ;; make a column of burning trees at the left-edge
    if ΑΦΕΤΗΡΙΑ_ΦΩΤΙΑΣ = "ΚΕΝΤΡΟ"  [ask patches [
    if pxcor = 0 and pycor < 5 and pycor > 1
    [ set pcolor red ]
  ]
  ]
  if ΑΦΕΤΗΡΙΑ_ΦΩΤΙΑΣ = "ΑΡΙΣΤΕΡΗ ΠΛΕΥΡΑ" [ask patches with [pxcor = min-pxcor]
    [ set pcolor red ]]
  ;; keep track of how many trees there are
  set initial-trees count patches with [pcolor = green]
  reset-ticks
end 

to go
  ;; stop the model when done
  if all? patches [pcolor != red]
      [ stop ]


  ;; each burning tree (red patch) checks its 4 neighbors.
  ;; If any are unburned trees (green patches), change their probability
  ;; of igniting based on the wind direction
  ask patches with [pcolor = red] [
    ;; ask the unburned trees neighboring the burning tree
    ask neighbors4 with [pcolor = green] [
      let probability ΠΙΘΑΝΟΤΗΤΑ_ΕΞΑΠΛΩΣΗΣ

      ;; compute the direction from you (the green tree) to the burning tree
      ;; (NOTE: “myself” is the burning tree (the red patch) that asked you
      ;; to execute commands)
      let direction towards myself

      ;; the burning tree is north of you
      ;; so the south wind impedes the fire spreading to you
      ;; so reduce the probability of spread
      if (direction = 0 ) [
        set probability probability - ΤΑΧΥΤΗΤΑ_ΝΟΤΙΟΥ_ΑΝΕΜΟΥ ]

      ;; the burning tree is east of you
      ;; so the west wind impedes the fire spreading to you
      ;; so reduce the probability of spread
      if (direction = 90 ) [
        set probability probability - ΤΑΧΥΤΗΤΑ_ΔΥΤΙΚΟΥ_ΑΝΕΜΟΥ ]

      ;; the burning tree is south of you
      ;; so the south wind aids the fire spreading to you
      ;; so increase the probability of spread
      if (direction = 180 ) [
        set probability probability + ΤΑΧΥΤΗΤΑ_ΝΟΤΙΟΥ_ΑΝΕΜΟΥ ]

      ;; the burning tree is west of you
      ;; so the west wind aids the fire spreading to you
      ;; so increase the probability of spread
      if (direction = 270 ) [
        set probability probability + ΤΑΧΥΤΗΤΑ_ΔΥΤΙΚΟΥ_ΑΝΕΜΟΥ ]
      if random 100 < probability [
        set pcolor red ;; to catch on fire
        ;; if big jumps is on, then sparks can fly farther
        if ΧΑΜΗΛΑ_ΠΟΣΟΣΤΑ_ΥΓΡΑΣΙΑΣ? [
          let target patch-at (ΤΑΧΥΤΗΤΑ_ΔΥΤΙΚΟΥ_ΑΝΕΜΟΥ / 5) (ΤΑΧΥΤΗΤΑ_ΝΟΤΙΟΥ_ΑΝΕΜΟΥ / 5)
          if target != nobody and [ pcolor ] of target = green [
            ask target [
              set pcolor red ;; to ignite the target patch
            ]
          ]
        ]
      ]
    ]
    set pcolor red - 3.5;; once the tree is burned, darken its color
  ]

  tick   ;; advance the clock by one “tick”
end 

to ΜΕΤΑΔΩΣΕ_ΦΩΤΙΑ_ΜΕ_ΠΟΝΤΙΚΙ
  if mouse-down? [
    ask patch mouse-xcor mouse-ycor [
  set pcolor red
    ]
    display
  ]
end 

; Copyright 2006 Uri Wilensky.
; See Info tab for full copyright and license.

There is only one version of this model, created over 1 year ago by Katerina Benisi.

Attached files

No files

Parent: ΦΩΤΙΑ ΣΤΟ ΔΑΣΟΣ

This model does not have any descendants.

Graph of models related to 'Fire(greek version)'