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
to make-turtles
    ask patch 0 0 [
      create-initial-turtles num-random-min   "random-min"   violet
      create-initial-turtles num-random       "random"       brown
      create-initial-turtles num-random-away  "random-away"  pink
" d* B$ t1 i; f% W& e8 }# J      create-initial-turtles num-open-min     "open-min"     blue
& e' U0 d5 z9 U3 n6 y) U) M      create-initial-turtles num-open-min-max "open-min-max" orange ]
% D( d9 a$ l2 x+ H+ m  set-common-variables
8 ~0 {; n( w/ E: Z5 d/ ~# Iend
0 M' p  O% e) U  A  f$ F
6 Y) F8 o- [6 q; Wto 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

% n, K: `  M6 P7 T' i! e[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]