语法看不懂，能帮忙解释一下吗？

etamina

下面的语句中ask patch和create-initial-turtles 后面接的[ ]中的语句是什么含义，其中非原语的都是定义的全局或者外部变量。语法有点奇怪，谁能帮我解释一下吗？多谢
9 D# [+ a5 J' u6 L2 g3 M& K* T/ x/ ^to make-turtles
    ask patch 0 0 [
      create-initial-turtles num-random-min   "random-min"   violet
      create-initial-turtles num-random       "random"       brown
" }0 U- I1 a2 a% _; A! l9 t      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
: y" [2 j; {" U* C" b      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
end
  y/ {; X) v1 p" T  `) a4 r; Y
0 R; p7 Z7 c* ~to create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
    [ set rule turtle-rule
      set color turtle-color ] ]
end

( B, k( c2 V! Z* |! B4 P3 L[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]