Development of Religion

Development of Religion preview image

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Maturska Tarik Ćosović (Author)

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networks religion emergence 

Tagged by Tarik Ćosović about 3 years ago

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Model was written in NetLogo 6.1.1 • Viewed 91 times • Downloaded 7 times • Run 0 times
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Description

We observe the world from the origin of religion, from homo-sapiens to modern man. We introduce age, degree of technological development, economy and the state of war as the basic attributes of the world that will scale (non) linearly, and have a direct impact on the attributes of agents in the current time of the world. Agents will be autonomous, and we will observe the spread of existing religions and the introduction of new ones. We will represent members of different religions with colors, and propeths and preachers with specific particles. We are interested in changing the coefficient of religious companions through the aging of the world, and we ask the following questions: Will the oldest religions remain the most popular and dominant? Will young religions or emerging ones take over? Will agents stop believing in religion as the world’s technological coefficient rises?

Posted about 3 years ago

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;;The Evolution of Religion
;; This NetLogo model is to simulate the evolution of religion

;; Breeds and their shared or type-specific attributes

breed[humans human]               ;; set size 1 for regular human to distinguish them in the interface from other breeds
breed[preachers preacher]         ;; set size 5 for preacher
breed[prophets propeth]           ;; set size 50 for the propeth

turtles-own[

  age                             ;; 1:N       (current age of the agent)
  lifespan                        ;; N         (age of death of the agent)
  religion                        ;; string    (religion of the agent)
  religiosity                     ;; 0:10      (religiosity of the agent)
  openness                        ;; 0:10      (how open the agent is to new ideas)
  trust                           ;; 0:10      (how confidental the agent is)
  influence                       ;; 0:10      (how influential the agent is in the world)
  radius                          ;; 0:N       (physical radius of interaction)
  movementSpeed                   ;; 1:N       (defines node moves per tick)

]


;; Global variables declared on the interface:
;; population-size                   0:N       (size of starting population)
;; world-events                      T:F       (enables/disables world events)
;; world-events-frequency            0:N       (determines the max frequency of world events by the formula (random thisVariable))
;; world-events-impact-coefficient   0:N       (determines the impact that the world events will have on religions)
globals[

  world-age                        ;; 0:N      (current age of the world)
  world-technological-advancement  ;; 0:100    (technological advancement of the world)
  world-economy?                   ;; T:F      (whether the world economy is stable or not)   MOZDA DA RAZMJENJUJU NOVAC AGENTI PA DA TAKO UTICEMO NA EKONOMIJU..
  world-peace?                     ;; T:F      (whether the world is at peace or not)

  ;; Temp Variables

  world-events-current-frequency
  world-preachers-percentage

  ;; Religions
  world-religions
  world-religions-colors
  world-religions-population

]

;; Setup Method

to setup

  clear-all
  reset-ticks

  init-variables
  init-patches
  init-turtles

  print-world-config
  ;;show word "Most dominant starting religion: " get-world-religion-influence["christianity"]   - Get Religion Current Influence
end 

;; Init World Variables

to init-variables

  set world-age 1
  set world-technological-advancement 1
  set world-peace? false
  set world-economy? false
  set world-preachers-percentage world-preachers-percentage-ui ;;Setting the preachers percentage according to the UI

  set world-events-current-frequency (random world-events-frequency) + 1 ;;Setting the current world event frequency

  ifelse(world-preachers-percentage != 0)[set world-preachers-percentage world-preachers-percentage / 100] ;;Taking the percentage and transforming it into decimals
  [set world-preachers-percentage 0]

  set world-religions["christianity" "islam" "hinduism" "atheism" "budhism" "folk-religion" "other-religion"]    ;; Religions of the world
  set world-religions-colors[white green brown red gray pink yellow]                                             ;; Colors to represent religion
  set world-religions-population[0.31 0.24 0.15 0.16 0.07 0.06 0.005]                                            ;; Percentage of agents per religion
end 

;; Init Patches Method

to init-patches

  ask patches[

    set pcolor black

  ]
end 

;; Init Turtles Method

to init-turtles

  let number-of-preachers (int(world-preachers-percentage * population-size))
  let number-of-humans (population-size - number-of-preachers)

  create-humans population-size
  create-preachers number-of-preachers

  ask turtles[

    turtles-set-init-values
  ]

  ;; Assigning religions per percentage, data from: Size of Major Religious Groups, 2020 on Wikipedia
  let counter 0
  foreach(world-religions-population)[

    let percentage int(item counter world-religions-population * population-size)

    ask n-of percentage turtles with[religion = "none"][set religion item counter world-religions set color item counter world-religions-colors]

    set counter counter + 1
  ]
end 

to turtles-set-init-values

  setxy random-xcor random-ycor

  set shape "person"
  set age 0

  set lifespan random 300
  if lifespan < 18[set lifespan lifespan + 18]


  if (breed = humans)   [set size 1 set radius 1 set movementSpeed 1]
  if (breed = preachers)[set size 6 set radius 3 set movementSpeed 2]

  set religion random 11
  set religiosity random 11
  set openness random 11
  set trust random 11
  set influence random 11

  set religion "none"
end 

;; Print World Config Method - prints the world configuration

to print-world-config

  show "--------------------"
  show "World Configuration"
  show "                                    "

  show word "World Population: " population-size

  let number-of-preachers (int(world-preachers-percentage * population-size))
  let number-of-humans (population-size - number-of-preachers)

  show word "Humans: " number-of-humans
  show word "Preachers: " number-of-preachers

  show "                                    "
  show "World Peace: Active"
  show "World Economy: Stable"

  show "                                    "
  ifelse world-events[                                        ;; We print the world-events configuration if they are enabled
    show "World Events: Enabled"
    show word "World Events Impact Percentage: " world-events-impact-coefficient
    show word "World Events Frequency: " world-events-frequency
  ]
  [show "World Events: Disabled"]
end 

;; Go Method which loops the go-once method

to go
  go-once
end 

;; Go Once Method updated 1/per tick

to go-once

  ask turtles[

    turtles-move
    turtles-age

    if (breed = humans)[
      ;; Human specific behaviors
      human-interaction
    ]
    if (breed = preachers)[
      preacher-interaction
      ;; Preacher specific behaviors
    ]
    if (breed = prophets)[
      ;; Prophet specific behaviors
      prophet-interaction
    ]

  ]

  world-event-check  ;; Check if it is time for a world event
  world-update       ;; Update the world variables such as age, technology, etc ...
end 

;; Turtle Movement - they move in random directions 1 field per tick

to turtles-move
  rt random 100
  lt random 100
  fd movementSpeed
end 

;; Turtles age

to turtles-age

  set age age + 1

  if age > lifespan[

    if count turtles > 25000 [die]

    if world-mortality = "Constant"[turtles-born die]
    if world-mortality = "Simulated"[  ;; Code for simulated reporoduction

      let children random 2

      if (children = 0)[
        let number-of-children random 3

        loop[
          ifelse(number-of-children != 0)[

            set number-of-children number-of-children - 1
            turtles-born

          ][stop]
        ]
      ]
      die
    ]
    if world-mortality = "Increasing"[if count turtles > 1000 [die]]
    if world-mortality = "Decreasing"[turtles-born turtles-born die]
  ]
end 

;; Birth of turtle

to turtles-born

  if count turtles > 25000 [stop]

  let temp-religion religion
  let temp-color color

  if breed = humans
  [
    hatch-humans 1[

      turtles-set-init-values

      set religion temp-religion
      set color temp-color
    ]
  ]

  if breed = preachers
  [
    hatch-preachers 1[

      turtles-set-init-values

      set religion temp-religion
      set color temp-color
    ]
  ]
end 

;; World Update - update the world variables as per year

to world-update

  tick

  set world-age world-age + 1

  if (world-age mod 30 = 0)[set world-technological-advancement world-technological-advancement + 1] ;; Increasing the technological advancement of the world every N(50)years.
end 

;; World Events - Create World Events

to world-event-check

  if world-events[
    if(world-age mod world-events-current-frequency = 0)[world-event-execute]   ;;We check if the world-event is to happen

  ]
end 

to world-event-execute

  let impact-level random 6
  let impact-sign random 2
  let religionID random 7

  show "*********************************"
  show "World Event Happening.."
  show word "Impact Level: " ( impact-level )

  ifelse(impact-sign = 1)[show "Impact Sign: Negative"]
  [show "Impact Sign: Positive"]

  show word "Religion Effected: " item religionID world-religions

  set world-events-current-frequency (random world-events-frequency) + 1 ;;Setting the current world event frequency
  if(world-events-current-frequency < 200)[set world-events-frequency 300]

  let percentage (count turtles with [religion = item religionID world-religions])/(impact-level + 4)

  show word "Population effected: " percentage

  ifelse impact-sign = 1[
    ask n-of percentage turtles with[religion = item religionID world-religions]
    [
      let randomRel random 6

      set religion item randomRel world-religions
      set color item randomRel world-religions-colors
    ]
  ]
  [
    ask n-of percentage turtles
    [
      set religion item religionID world-religions
      set color item religionID world-religions-colors
    ]
  ]

  ;; EXECUTE WORLD EVENT

  show word "Next event in years: " world-events-current-frequency
  show "*********************************"
end 

;; Get Religion current world-influence

to-report get-world-religion-influence [temp-religion]

  let followers count turtles with[religion = "christianity"]

  report ( followers / population-size) * 100.00
end 

to check-for-mutation

  if (breed = humans)[  ;; Mutate high-engaging humans into preachers

    if(age > 18 AND religiosity >= 8 AND openness >= 7 AND trust > 7 AND influence > 6)[

      hatch-preachers 1[

        init-mutation age lifespan religion religiosity openness trust influence

      ]
      die
    ]
  ]

  if (breed = preachers)[  ;; Mutate a rare preacher into a prophet

    if(age > 30 AND religiosity >= 10 AND openness >= 10 AND trust >= 10 AND influence >= 10 AND religion != "atheism" AND count prophets = 0)[

      hatch-prophets 1[

        init-mutation age (lifespan + 50) religion religiosity openness trust influence


        show "A new prophet has arrived!"
        show word "Prophet religion: " religion

      ]

      die
    ]
  ]
end 

to init-mutation[temp-age temp-lifespan temp-religion temp-religiosity temp-openness temp-trust temp-influence]

  set shape "person"
  set age temp-age
  set lifespan temp-lifespan
  set religion temp-religion
  set religiosity temp-religiosity
  set openness temp-openness
  set trust temp-trust
  set influence temp-influence
  set size 6

  if(breed = humans)[set radius 1]
  if(breed = preachers)[set radius 3 set movementSpeed 2]
  if(breed = prophets)[
    set size 30
    set radius 30
    set movementSpeed 7
  ]
end 

to print-agent-attributes

  show word "Agent ID: " who
  show word "Age: " age
  show word "Lifespan: " lifespan
  show word "Religion: "religion
  show word "Religiosity: " religiosity
  show word "Oppenness: " openness
  show word "Trust: " trust
  show word "Influence: " influence
end 

to human-interaction

  let passed interaction-result openness trust influence

  if passed = true[
  ask other humans in-radius radius[

      human-interaction-decision


    ]
  ]
end 

to human-interaction-decision

  turtle-change-random-attribute
  check-for-mutation
end 

to preacher-interaction

  let passed interaction-result openness trust influence

  if passed = true[
  ask other humans in-radius radius[

    preacher-interaction-decision religion color

    ]

    check-for-mutation
  ]
end 

to preacher-interaction-decision[newReligion newReligionColor]

  ;; ADD RELIGION CHANGING ATTRIBUTE METHOD KADA DODAMO DA MOGU MJENATI RELIGIOSITY LJUDI ONDA CE BITI INTERESANTNIJE...

  let believe-in-god? true

  let peace-val world-peace-coefficient
  let economy-val world-economy-coefficient

  if (world-peace-options = "Simulated")[ set peace-val random 100 ]
  if (world-economy-options = "Simulated")[ set economy-val random 100 ]


  if(world-peace? = true)[set peace-val (peace-val * -1)]
  if(world-economy? = true)[set economy-val (economy-val * -1)]

  let religiosity-coefficient ( (peace-val + economy-val - ( (world-technological-advancement + 1) / 10) ) / 10)

  if(religiosity + religiosity-coefficient < 3)[set believe-in-god? false]

  ifelse (believe-in-god?)[

    set religion newReligion
    set color newReligionColor

  ]
  [

    set religion "atheism"
    set color red

  ]

  set openness openness - 3

  check-for-mutation
end 

to prophet-interaction


  let newReligion religion
  let newReligionColor color

  ask other turtles in-radius radius[

    prophet-interaction-decision newReligion newReligionColor
  ]
end 

to prophet-interaction-decision[newReligion newReligionColor]

  set religion newReligion
  set color newReligionColor

  check-for-mutation
end 

to-report interaction-result[temp-openness temp-trust temp-influence]

  if(world-interaction-behavior = "Coefficient-Based")[

    if (temp-openness + temp-trust + temp-influence) > world-interaction-coefficient [ report true ]

  ]

  if(world-interaction-behavior = "Simulated")[

    let random-number random 31

    if (temp-openness + temp-trust + temp-influence) < random-number [ report true ]

  ]

  report false
end 

to turtle-change-random-attribute

  let random-number random 3
  let prefix random 2

  if(prefix = 0)[set prefix -1]

  if(random-number = 0 AND (openness > 0 AND openness < 11))[set openness openness + prefix]

  if(random-number = 1 AND (trust > 0 AND trust < 11))[set trust trust + prefix]

  if(random-number = 2 AND (influence > 0 AND influence < 11))[set influence influence + prefix]
end 

There is only one version of this model, created about 3 years ago by Tarik Ćosović.

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