12  Go Procedure

This chapter is a work in progress. The content may be incomplete, inconsistent, or subject to significant revision. Reader discretion is advised.

The go procedure is responsible for advancing the model’s state at each tick.

The code below show the go procedure of the Logonia model. LogoClim insertions are denoted with ; LogoClim at the end of the line to make it easier to identify which parts of the code are specific to LogoClim and which are related to Logônia.

to go
  if ((month = "December") and (year = 2024)) [stop] ; LogoClim

  ls:ask ls:models [go] ; LogoClim

  set index [index] ls:of tmin-ls-model ; LogoClim
  set month [month] ls:of tmin-ls-model ; LogoClim
  set year [year] ls:of tmin-ls-model ; LogoClim

  update-climate-variables ; LogoClim

  set max-plot-x ceiling ((ticks + 1) * 1.25)

  ifelse (inspect-var? = true) [ ; LogoClim
    inspect-climate-variables
  ] [
    ask logonias [show-turtle]
  ]

  ask patches [
    set growth-probability compute-growth-probability self
  ]

  ask logonias [
    grow
    reproduce
    senesce

    if ((energy <= 0) or (age >= 100)) [die]
  ]

  if (inspect-var? = false) [
    ask patches [
      ifelse (ever-occupied? = true) [
        set pcolor brown + 3
      ] [
        set pcolor gray + 4
      ]
    ]
  ]

  update-moving-average

  if (not any? logonias) [stop]

  tick
end