不同长度的季节

Question

我正在开发一个模拟草在不同季节生长的模型。

假设模拟中的一年有 368 天（刻度）。一年有四个季节：冬、春、夏、秋。我想要两种不同的场景：1）每个季节同样长的场景：368 天/4 个季节 = 每个季节 92 天； 2）用户可以选择每个季节的长度的场景。

对于第一个场景，我将其编码到模型中如下（参见“go”过程）：

globals [
;; Climate related global variables
  current-season
  current-season-name

;; Time related global variables
  days-per-tick
  number-of-season
  simulation-time
  season-days

;; Grass related global variables
  kmax
  ]

patches-own [
  grass-height
  r
   ]

to setup
  clear-all
  resize-world 0 (set-x-size - 1)  0 (set-y-size - 1)
  setup-globals
  setup-grassland
  reset-ticks
end

to setup-globals
  set days-per-tick 1
  set number-of-season 0
  set current-season-name ["winter" "spring" "summer" "fall"]
  set simulation-time 0
  set kmax [5 20 15 10]
  set current-season initial-season
end

to setup-grassland
  ask patches [
    set grass-height initial-grass-height
    ifelse grass-height < 2 
    [set pcolor 37]
    [set pcolor scale-color green grass-height 23 0]
    set r 0.002
  ]
end

to go
    if season-days >= 92 [set number-of-season number-of-season + 1                 ;; the season change and duration is determined in this line
    ifelse current-season = 0
    [set current-season 1]
    [ifelse current-season = 1
      [set current-season 2]
      [ifelse current-season = 2
        [set current-season 3]
        [set current-season 0]  
      ]
    ]
  ]

  set simulation-time simulation-time + days-per-tick

  set season-days season-days + days-per-tick
  if season-days >= 93 [set season-days 1]    

  grow-grass

  tick
end

to grow-grass
  ask patches [
    set grass-height ((item current-season kmax / (1 + ((((item current-season kmax) - (grass-height)) / (grass-height)) * (e ^ (- r * simulation-time))))))
    ifelse grass-height < 2
    [set pcolor 37]
    [set pcolor scale-color green grass-height 23 0]
  ]
end


to-report season-report
    report  item current-season current-season-name
end

我的问题是在实施第二种情况时。我想在界面上添加四个滑块，允许用户更改每个季节的长度（从最小 0 天到最大 368 天。重要的是四个季节的总和为 368。例如, 是用户设置 winter-length = 368 天, 剩余季节的长度应为 0)。例如，假设每个季节的持续时间设置如下：

• 冬长122天

• 春长62天

• 夏季122天

• 秋季长度 62 天

（总计：368天）

有什么想法可以在代码中实现类似的东西吗？